HOWMEDICA OSTEONICS CORP. Patent applications |
Patent application number | Title | Published |
20150328015 | GUIDES FOR FRACTURE SYSTEM - A height measuring tool may include a body member configured to releasably couple to an implant component. A slidable member having a distal end surface may be coupled to the body member. A height reference member may also be coupled to the body member. Movement of the sliding member in a distal direction in relation to the body member may cause corresponding movement of the height reference member in the distal direction when the sliding member is engaged to the height reference member and the height reference member is in an unlocked state. Generally, when an implant component is attached to the height measuring tool, a user may insert the implant component at least partially into a bone, with the slidable member and the height reference member used in conjunction to objectively mark off a height of the implant component relative to the bone. | 11-19-2015 |
20150320428 | Acetabular Reamer - An acetabular reamer has a rotatable drive shaft extending along a first longitudinal central axis. A second housing surrounds at least a portion of the drive shaft, the first housing having a gripping arm. A drive motor in a first housing is coupled to a first end of the rotatable drive shaft for rotating the drive shaft. A reamer head is rotatably coupled to a second end of the rotatable drive shaft, the reamer head rotatable about a second axis extending at an acute angle with respect to the rotatable drive shaft first longitudinal. A releasable connector couples the first and second housing and prevent relative rotation between the first housing and the second housing. | 11-12-2015 |
20150313611 | UNDERCUTTING BONE DRILLS AND METHODS OF USE - A bone cutting device for forming an undercut in bone. The device includes a rotatable body having an inner surface and outer surface. The inner surface defines an aperture. The inner and outer surfaces are disposed opposite each other and define a sidewall. The sidewall includes a recess extending from the outer surface into the aperture. A cutting arm is cantilevered to the sidewall and disposed within the recess. The cutting arm includes a flexible depression extending into the aperture. An actuating member is longitudinally slidable within the aperture such that sliding the actuating member longitudinally interfaces with the flexible depression and pushes the cutting arm radially outwardly. | 11-05-2015 |
20150266210 | ANNEALING METHOD FOR CROSS-LINKED POLYETHYLENE - A method for making an ultra-high weight polyethylene (UHMWPE) medical implant starts with obtaining a preform consolidated from UHMWPE resin. Thereafter the preform is hot isostaticly pressed at a temperature between 150° C. and 190° C. at a pressure up to 30,000 psi. After the hot isostatic pressing the preform is sequentially irradiated in a solid state at a total radiation dose of 2 to 10 MRad. The irradiated UHMWPE preform is then heated to a temperature of about 110° C. to about 190° C. for between 2 to 10 hours. The irradiated and heated preform is then cooled after each irradiation and heating to at or below 50° C., and thereafter a medical implant is formed from the preform. Alternately, the process can be performed on the medical implant itself. | 09-24-2015 |
20150265292 | SHAPE-FIT GLENOID REAMING SYSTEMS AND METHODS - Disclosed herein are systems and methods for securing a glenoid baseplate to a resected glenoid cavity in a preoperatively planned position. Image information obtained from the glenoid cavity and surrounding scapula is analyzed to determine the location of optimal bone stock. A guide is designed based on the image information, the guide having a patient specific contact surface that contacts a surface of the bone in a preoperatively planned position. The guide is designed to have a cannulated portion including a specific length. A marking pin having at least one reference feature is drilled into the glenoid cavity. The length of the cannulated portion of the guide is based on a location of the at least one reference feature on an outer surface of the marking pin. A cannulated reamer guided by the marking pin is then used to resect the glenoid cavity until a stop surface of the cannulated reamer contacts an end of the marking pin. | 09-24-2015 |
20150258735 | LASER-PRODUCED POROUS SURFACE - The present invention disclosed a method of producing a three-dimensional porous tissue in-growth structure. The method includes the steps of depositing a first layer of metal powder and scanning the first layer of metal powder with a laser beam to form a portion of a plurality of predetermined unit cells. Depositing at least one additional layer of metal powder onto a previous layer and repeating the step of scanning a laser beam for at least one of the additional layers in order to continuing forming the predetermined unit cells. The method further includes continuing the depositing and scanning steps to form a medical implant. | 09-17-2015 |
20150127049 | FILAMENTARY FIXATION DEVICE HAVING PROJECTIONS AND METHOD OF USE - In one embodiment, the present invention includes a fixation device including a cannulated body having a length and a pathway along at least a portion of the length and formed of a filamentary material, the body including at least one projection along its length. The present invention also includes various embodiments of securing such a device within a prepared hole in bone and for securing soft tissue to bone using such a device. | 05-07-2015 |
20150100060 | ACETABULAR CUP INSERTION INSTRUMENTS - An acetabular cup shell insertion system is provided for a shell having a threaded central opening and a part-spherical inner surface. The system includes an impactor having a strike plate at a first end and a first connection element at a second end. Also provided is a longitudinally extending adapter having a threaded first end adapted to threadably engage the threaded central opening in the acetabular cup. A second end of the adapter has a second connection element for engaging the impactor first connection element. An impaction flange extends radially outwardly of a longitudinal axis of the adapter. The flange has a first contact surface facing the second end of the adapter. A second contact surface surrounding the threaded first end of the adapter contacts the part-spherical inner surface of the acetabular cup surrounding the threaded central opening. | 04-09-2015 |
20150088145 | METHOD FOR ALIGNING AN ACETABULAR CUP - An alignment system for aligning an acetabular cup insertion instrument utilizes pre-operative preferably standing x-rays and intra-operative x-rays to allow the surgeon to compensate for the position of a patient on an operating room table. The system uses a programmable computer connected to a digital x-ray system and an navigation tracking system to provide input for calculating the inclination and anteversion angles of an acetabular cup impactor based on a pre-operative plan developed from the standing x-rays. The system calculates changes in lengths and angles between anatomic landmarks on the pelvis to alter the intra-operative orientation of the acetabular reaming and impacting instruments to produce the desired inclination and anteversion angles when the pelvis is reoriented as the patient is placed on an operating table. | 03-26-2015 |
20150045897 | PATIENT-SPECIFIC CRANIOFACIAL IMPLANTS - Disclosed herein are patient-specific craniofacial implants structured for filling bone voids in the cranium as well as for simultaneously providing soft tissue reconstruction and/or augmentation for improved aesthetic symmetry and appearance. Pterional voids or defects generally result from a chromic skull deformity along with a compromised temporalis muscle or soft tissue distortion from previous surgery. When muscle atrophy occurs in the pterion, temporal hollowing generally results where there would be soft tissue but for the atrophy. The patient-specific temporal implants herein are configured to have an augmented region adjacent the temporal region of the cranium in order to account for and correct any such temporal hollowing. | 02-12-2015 |
20140277567 | VOID FILLING JOINT PROSTHESIS AND ASSOCIATED INSTRUMENTS - A bone void filling prosthesis including a body and at least one leg. The body has a frustoconical profile, a length defined between a first end and a second end, and an aperture extending through the entirety of the length. The aperture defines a sidewall having a thickness spanning between an outer surface and an inner surface of the body. The at least one leg has a frustoconical profile, and a first and second end. The at least one leg is coupled to and extends away from the body such that the first end of the at least one leg is disposed between the first and second ends of the body. | 09-18-2014 |
20140277523 | MODULAR PATELLA TRIALS - A modular patella trial system and method is provided. A modular patella trial includes an articular element and at least one sizing element. The articular element has a length, a width, and a thickness. The articular element has a posterior and anterior surfaces separated by their thickness. The anterior surface has protrusions extending outwardly. Any of the sizing elements have a length, width, and thickness. Any such sizing elements have posterior and anterior surfaces separated by their thickness. At least one aperture extends through the posterior and anterior surfaces of the sizing elements. Such apertures are capable of receiving a corresponding protrusion of the articular element. The modular patella trial has a thickness substantially equal to the total of the thicknesses of the articular element and the sizing elements used in conjunction with the articular element. | 09-18-2014 |
20140277190 | COMPRESSION SCREW WITH VARIABLE PITCH THREAD - A bone screw apparatus is provided for threaded engagement with a bone and, optionally, a medical device such as a bone plate. The bone screw has a shaft having a first end, a second end, and a first thread having a first pitch. The screw further includes a head having a proximal end, a distal end adjacent the shaft first end, and a second thread having a second pitch. The second thread has a variable pitch that increases in a proximal direction, but never exceeds the magnitude of any portion of the first pitch. Upon threaded engagement of the head with bone or a medical device, a compression force is generated which continuously decreases as the screw is further inserted. | 09-18-2014 |
20140277121 | ADJUSTABLE CONTINUOUS FILAMENT STRUCTURE AND METHOD OF MANUFACTURE AND USE - A method of assembling an adjustable continuous filament assembly whereby a single length of filament is spliced to form a nonadjustable portion and a single free segment. The single free segment is introduced into the inner core of the nonadjustable portion at a first position. The single free segment is passed through at least a portion of the inner core of the nonadjustable portion. The single free segment is withdrawn from the nonadjustable portion at a second position, thereby forming an adjustable portion secured to the nonadjustable portion and adjustable by the single free segment. | 09-18-2014 |
20140276882 | VOID FILLING JOINT PROSTHESIS AND ASSOCIATED INSTRUMENTS - A bone void filling prosthesis, which includes a body and a plurality of legs. The body includes an aperture extending therethrough. The plurality of legs are each connected to the body. Each of the plurality of legs includes at least one selectively removable portion for adjusting a length of each of the plurality of legs. | 09-18-2014 |
20140257510 | ANATOMIC MONOLITHIC HIP IMPLANT SYSTEM - An anatomic prosthetic femoral implant system has a series of modular part-spherical heads and between 4 and 8 femoral component size groups. Each size group has only four components, two left and two right hip implants. One right and one left component being neutral in version and one right and one left being anteverted at an angle producing a head offset of between 4 and 5 mm from neutral. The head offset remains in this 4-5 mm range through all the size groups in the system. It has been found that a large proportion of the target patient population can be served by such a system. | 09-11-2014 |
20140257507 | PARTIALLY POROUS BONE IMPLANT KEEL - A method for removing a stem portion of an orthopedic implant from a bone comprises exposing an implanted orthopedic implant having a body portion, a stem portion interconnected to the body and a porous metal section forming an interconnection between the body and the stem portion. A cutting tool is mounted on a holder connected to an exposed surface of the orthopedic implant. The porous section is aligned with the cutting tool mounted on the holder. The entire porous section is cut by moving the cutting tool therethrough in a direction transverse to the stem portion axis. The implant body portion is then removed and then the stem portion is removed from the bone. The cutting tool may be a saw or chisel which may be mounted on a guide fixed to the body portion. | 09-11-2014 |
20140257504 | IMPLANT SYSTEM WITH PE INSERT AND TWO TRAY OPTIONS - A tibial implant system has an ultra-high molecular weight polyethylene tibial insert which can engage with either one of two tibial trays through differing means of engagement. The tibial insert includes a locking wire and locking tab disposed along an anterior surface and a locking recess disposed along a posterior surface. A first polymeric tibial tray includes a bead along an anterior wall and an undercut area along a posterior wall. A second metallic tibial tray includes a plurality of barbs along an anterior wall and an undercut area along a posterior wall. | 09-11-2014 |
20140257502 | ANTERIOR STABILIZED PCL RETAINING TOTAL KNEE PROSTHESIS - A knee prosthesis that includes a tibial component and femoral component. The tibial component includes an articular surface, a posterior portion and an anterior portion. The posterior portion includes a recess for receipt of a posterior cruciate ligament. The anterior portion includes a post extending therefrom. The post includes a posterior surface. The femoral component includes a condylar portion and an intercondylar portion. The intercondylar portion includes a posterior recess for receipt of the posterior cruciate ligament, a cam, and an engagement recess for receipt of the post. The cam includes a sliding surface and is disposed between the engagement recess and posterior recess. The sliding surface of the cam slides along the posterior surface of the post for restricting anterior subluxation of a femur bone when the articular surface and the condylar portion articulates through flexion of a knee joint. | 09-11-2014 |
20140257382 | FILAMENTARY FIXATION DEVICE AND ASSEMBLY AND METHOD OF ASSEMBLY, MANUFACTURE AND USE - The present invention, in one embodiment, includes a method of assembling a filamentary fixation device including obtaining a filamentary sleeve having a pathway therethrough, and a loading member and retriever member each positioned through at least a portion of the pathway, engaging a working suture with the retriever member, positioning at least a portion of the working suture in the pathway using the retriever member, and engaging the working suture with the loading member. | 09-11-2014 |
20140256229 | METHOD OF IMPROVING BOND STRENGTH OF PEEK IMPLANTS WITH BONE CEMENT - A method for improving the bond between a PEEK joint component and bone cement comprising roughening a surface of the PEEK component by air-blasting abrasive water-soluble particles against the component until an average surface roughness of 4 to 6 micrometers is attained and subsequently submerging the component in water to dissolve any residual particles. | 09-11-2014 |
20140255241 | MULTI-PART AXIAL POWDER COMPRESSION MOLD FOR COMPLEX PARTS - A method for manufacturing a titanium acetabular cup shell includes obtaining a titanium powder. A three part mold having a first part with a part-spherical inner surface, a second ram part with a part-spherical outer impact surface and a third ram part with an annular impact surface are provided to compact the titanium powder. The second and third parts are aligned along an axis within the first part. The second part is aligned along a center axis within the annular impact surface of the third part. The first mold part is filled with the titanium powder. The second mold part-spherical outer surface and the third part annular surface are moved towards the part-spherical inner surface of the first part into contact with the powder. The powder is compacted with the second part part-spherical outer impact surface and the third part annular impact surface to about 50% of its initial volume. | 09-11-2014 |
20140250835 | PROCESS FOR REMOVING CONTAMINANTS FROM POLYMERIC POWDERS - A method for detecting and removing foreign particles in polymeric resin powder comprising drying the resin powder; removing static energy from the resin powder; producing a layer of resin powder 0.2 to 0.8 mm in height in a feeding tray which feeds a conveyor; conveying the layer of resin powder with a transparent conveyor belt at a speed of between 12.2 and 36.64 meters/minute into a foreign particle detection zone; illuminating the polymeric resin powder in the detection zone from above and below with a light; continuously imaging the resin powder from above with a high speed digital CCD camera; continuously analyzing the images with a control device to detect particles having nonwhite colors; and actuating a suction system with the controller to suction off any detected particles to produce a polymeric resin powder having a reduced number of foreign particles. | 09-11-2014 |
20140249643 | LASER-PRODUCED POROUS SURFACE - A method of forming an implant having a porous tissue ingrowth structure and a bearing support structure. The method includes depositing a first layer of a metal powder onto a substrate, scanning a laser beam over the powder so as to sinter the metal powder at predetermined locations, depositing at least one layer of the metal powder onto the first layer and repeating the scanning of the laser beam. | 09-04-2014 |
20140249642 | COBALT CHROME COATED TITANIUM IMPLANT - An orthopedic implant has a prosthetic joint component made, for example, of polyethylene and another component made of a titanium or titanium alloy substrate. The substrate has a first bearing surface coated with a coating made of a cobalt-chromium molybdenum alloy. The bearing surface slidably receives a second bearing surface of the prosthetic joint component. The cobalt-chromium molybdenum alloy coating forming the first bearing surface is made up of hexagonal close packed (HCP) grains having a columnar structure with a length of about 1 μm and a width of about 0.1 μm with the length of each HCP grains being oriented generally perpendicular to the titanium substrate bearing surface. | 09-04-2014 |
20140249577 | KNOTLESS FILAMENTARY FIXATION DEVICES, ASSEMBLIES AND SYSTEMS AND METHODS OF ASSEMBLY AND USE - In one embodiment, the present invention include a method of securing tissue using a filamentary construct, the method including the steps of passing a length of filament through or around tissue; implanting a filamentary sleeve, formed of filament, into tissue; and passing at least a portion of the length of filament at least partially through the filamentary sleeve to form a one-way cleat. The present invention also provides for various devices, systems, assemblies, kits and methods of use, assembly and manufacture thereof. | 09-04-2014 |
20140249535 | ACETABULAR CUP POSITIONING DEVICE - An acetabular trialing system has a trial cup including a body comprising an outer surface, a part-spherical inner surface and a rim extending between the inner and outer surface with a plurality of spaced inwardly resiliently deflectable rim members each connected at a first end to the body outer surface. The part-spherical inner surface has a plurality of spaced resilient deflectable bearing members each forming part of the body part-spherical inner surface. The bearing members have a first end deflectable towards the body outer surface. Upon inward deflection, one of the plurality of deflectable rim members is capable of contacting the first end of a corresponding one of the plurality of deflectable bearing members and moving the bearing member towards the body outer surface and into contact an electrical signaling device mounted on the body intermediate the outer surface thereof and the deflectable bearing member. | 09-04-2014 |
20140243835 | LIGAMENT BALANCING FEMORAL TRIAL - An instrument for setting ligament tension between a distal femur and a proximal tibia has a rod mounted on a femur. The rod has an extension extending along a first axis. A first drive element is mounted on the distal femur and is rotatable about a second axis. A body is rotatably mounted on the rod extension for rotation about the first axis. The body has a second drive element engaging the first drive element and a third drive element extending about a third axis offset from the first and second axes. A ligament tensioning element is mounted on the body and has a foot for engaging a posterior condyle of a femur and has a fourth drive element. A fifth drive element engages both the third and fourth drive elements for moving the ligament balancer with respect to the body along the third axis. | 08-28-2014 |
20140222158 | FEMORAL PROSTHESIS HEAD - A prosthetic head for a femoral component has a metal shell with a tapered cavity. The shell has a part-spherical outer surface defining an inner portion terminating in an open end. A polymeric material completely fills the inner portion of the hollow shell extending from an inner surface of the shell to the open end. The polymeric material includes a conically tapered socket centered about the polar axis intermediate ends of the open end wherein the shell is a hollow titanium shell having an inner surface with a porous structure for receiving a portion of the polymeric material. The hollow titanium shell inner surface has at least one rib extending inwardly toward the conically tapered socket. | 08-07-2014 |
20140207233 | INSTRUMENTATION AND METHOD FOR POSITIONING AND SECURING A GRAFT - In one embodiment, the present invention is a method of positioning and securing a graft to bone including the steps of: positioning the graft into a bore hole in the bone; positioning a guide wire into the bore hole in the bone; positioning a slide instrument between the guide wire and the graft; positioning a driver, and an anchor secured thereto, over the guide wire; directing the anchor along the guide wire and towards and into the bore hole; and imparting a rotational force to the anchor to secure the anchor between a sidewall of the bore hole and a portion of the graft. | 07-24-2014 |
20140207188 | SURGICAL SUTURE RETRIEVING AND PASSING SYSTEM - A suture retaining device, which has an elongate body having a cross section that is at least partially circular, and a head portion joined to the elongate body. The head portion has a sidewall that defines a cavity for receipt of a suture. The sidewall also has an internal surface that is at least partially flat, and the cavity is enclosed by the sidewall. The suture retaining device may be utilized in conjunction with a suture passing device, which has a body that includes a distal end, proximal end and outer surface; an internal passageway extending through the body from the distal end to the proximal end; and a contoured portion defining a recess in the body, the recess extending radially from the outer surface to the internal passageway, the contoured portion is homogenous. | 07-24-2014 |
20140194548 | SEQUENTIALLY CROSS-LINKED POLYETHYLENE - A method of producing an improved polyethylene, especially an ultra-high molecular weight polyethylene utilizes a sequential irradiation and annealing process to form a highly cross-linked polyethylene material. The use of sequential irradiation followed by sequential annealing after each irradiation allows each dose of irradiation in the series of doses to be relatively low while achieving a total dose which is sufficiently high to cross-link the material. The process may either be applied to a preformed material such as a rod or bar or sheet made from polyethylene resin or may be applied to a finished polyethylene part. | 07-10-2014 |
20140180295 | PATIENT-SPECIFIC CUTTING GUIDE FOR THE SHOULDER - Disclosed herein are devices and methods for guiding a surgical instrument for resecting a portion of a humerus of a patient. The surgical instrument is a patient-specific cutting guide having a base portion having a contact surface shaped to substantially match an outer surface of a neck portion of the humerus. The guide includes at least one proximal stabilization member extending medially from the base portion and having a contact surface shaped to substantially match an outer surface of a head portion of the humerus. The guide further includes at least one distal stabilization member extending distally from the base portion and having a contact surface shaped to substantially match an outer surface of a shaft portion of the humerus. The base portion includes a guide slot for guiding the surgical instrument. | 06-26-2014 |
20140156016 | BICRUCIATE RETAINING TIBIAL BASEPLATE DESIGN AND METHOD OF IMPLANTATION - A base component for a tibial implant has a lateral compartment and a medial compartment spaced from the lateral compartment defining an open central section therebetween. A connecting portion connects the medial and lateral compartments at an anterior end of the base component which anterior end is located adjacent the anterior tibia. The open central section of the base component intermediate the spaced medial and lateral compartments is open to a posterior end of the base component. The medial and lateral compartments have a bone contacting surface and a superiorly facing surface. The connecting portion has a curved anteriorly facing surface and has a first angled surface extending at an angle from adjacent the anterior end of the base component at a bone contacting surface of the connecting portion superiorly to a posterior end of the connecting portion. The first angled surface defining an anterior end of the open central section. | 06-05-2014 |
20140155903 | AUTOMATICALLY ADJUSTING PATELLA CUTTING GUIDE - A patella clamping device has a handle having a first arm and a second arm, the arms each having a first gripping end and a second clamping end. The clamping ends are movable towards the opposite arm by action on the gripping end of each arm. The clamping ends of the first and second arms comprise opposed clamping surfaces. The clamping end of each arm has a body portion having spaced first and second surface defining the opposed surface of each arm. A plurality of pins extend from the first to the second surface. A rotatable toothed jaw member is pivotally mounted on each of the pins. The jaw member has at least one tooth extending outwardly of the opposed surface of each arm for engaging the patella. Each body has a third surface spaced from the second surface to create a slot for receiving a saw blade. | 06-05-2014 |
20140148809 | PROGRAMMABLE FEMORAL PIN GUIDE - A guide for use prior to, or concurrently with, resecting a portion of a patient's bone includes a body, an anterior adjustment member, at least one posterior adjustment foot, at least one adjustable condylar alignment pin, an adjustable anterior arm, and means to direct guide pins into the femur. The body has multiple apertures configured to accept pins. The anterior adjustment member is coupled to the body and moves toward/away from the femur and contacts an anterior portion of the femur. The posterior adjustment foot is coupled to the body and moves toward/away from the femur and contacts a posterior portion of the femur. The anterior arm is coupled to the anterior adjustment member and is configured to contact the femur proximal of the anterior adjustment member. The rotation arm is coupled to the body and provides guides to drill into the femur. | 05-29-2014 |
20140074101 | HIGH TIBIAL OSTEOTOMY GUIDE - A cutting block for use in a bone osteotomy procedure is disclosed, and includes a first cutting guide surface, a second cutting guide surface, and a third cutting guide surface. The first, second, and third cutting guide surfaces are adapted to be temporarily affixed to a bone having a first side and a second side such that the first cutting guide surface is disposed on the first side of the bone, and such that the second cutting guide surface and third cutting guide surface are disposed on the second side of the bone forming an angle therebetween. | 03-13-2014 |
20140067076 | TIBIAL INSERT LOCKING MECHANISM - A tibial implant includes a baseplate having a proximally facing surface surrounded at least in part by a proximally extending wall. The wall has a ramp surface extending from the wall towards the baseplate proximally facing baseplate surface and a bore located distally of the ramp. A polyethylene bearing insert is mounted on the baseplate and has a distally facing surface engaging the proximally facing surface of the baseplate. The distally facing bearing insert surface has a recess and the insert has a side surface with a passageway extending from the recess through the insert side surface. A spring detent is mounted in the bearing insert recess and has a moveable pin biased outwardly of the bearing insert side surface and into the bore of the baseplate. | 03-06-2014 |
20140066809 | FEMORAL CONDYLAR RADIUS GAGE - An instrument and method for determining the location of the anatomical epicondylar axis between the condyles of a femur is provided. The instrument includes first and second gauges each for measuring a radius of a femoral condyle and a frame. At least one of the gauges is movably connected to the frame. The method includes positioning the measuring end of each gauge against a separate condyle of a femur, actuating a pivoting member of each gauge to determine the radius of each condyle, measuring the distance between the condyles, and determining the location of the anatomical epicondylar axis of the femur. A measurement can be taken from a measuring scale provided on the gauge and from another scale provided on the frame. Determining the location of the axis can further include performing a calculation utilizing the radii of the condyles and the distance between the condyles. | 03-06-2014 |
20140058465 | APPARATUS FOR SECURING A SPINAL ROD SYSTEM - The present invention includes an apparatus for securing a spinal rod with an anchoring device, the apparatus including a tubular body defining a longitudinal axis from a proximal end to a distal end; a connecting element positioned within the tubular body and along the longitudinal axis, the connecting element engaged by a first internal shaft and a second internal shaft, the tubular body, first internal shaft and second internal shaft coaxial with one another; the first internal shaft rotatably engages the connecting element such that rotation of the first internal shaft results in axial translation of the connecting element; and the second internal shaft engages the connecting element such that rotation of the second internal shaft results in rotation of the connecting element. | 02-27-2014 |
20140046451 | IMPLANT PACKAGE - A system for packaging a medical implant may include a sleeve for housing the implant within a cavity in the sleeve, with at least a portion of the cavity conforming to the shape of the implant. A flexible material film may cover and substantially conform to the shape of the sleeve so as to aid in stabilizing the sleeve and implant within an outer package. An insertion instrument for inserting the implant within the body of a patient may also be provided with the system. In some embodiments, the sleeve, with the implant inserted in the cavity of the sleeve, is configured for manipulation by a user without contacting the implant, and the implant is connectable to the insertion instrument while in the sleeve. | 02-13-2014 |
20140039552 | SOFT TISSUE FIXATION DEVICES AND METHODS - Filamentary fixation devices may be used in a variety of surgical procedures to secure soft tissue to bone. The present invention provides various devices, systems, kits and instrumentation for performing such surgical procedures including preparation of soft tissue and bone, preparation and manipulation of such filamentary fixation devices, and insertion and utilization of the fixation devices within a patient's anatomy. In one embodiment, a method for securing soft tissue to bone, the method includes accessing the soft tissue and the bone, passing a filament through the soft tissue, preparing a bore hole in the bone, loading the filament into a filamentary fixation device, implanting the filamentary fixation device, with the filament, into the bore hole, and tensioning the filament so that the filamentary fixation device and filament are secured within the bore hole. | 02-06-2014 |
20140039503 | SURGICAL INSTRUMENTS AND METHODS OF USE - One embodiment of the present invention includes a surgical instrument including an instrument body including a shaft having a distal end, a proximal end and a length therebetween; and a bushing having a length, wherein at least a portion of the length of the bushing includes a spring portion including a resilient member, wherein the bushing is cannulated such that the shaft of the instrument is positioned there through. | 02-06-2014 |
20140031945 | CEMENT PRESSURIZING GLENOID - A prosthetic glenoid component has a body having a concave bearing surface and a convex glenoid contacting surface. First and second pegs extend outwardly from adjacent respective first and second ends of the bone contacting surface of the body, the first and second pegs have portions with a first diameter at the bone contacting surface extending for a first length and a second diameter extending from the first diameter for a second length, the first diameter larger than the second diameter. A third peg extends outwardly from the bone contacting surface intermediate the first and second pegs. The third peg has a third diameter greater than the second diameter portion of the first and second pegs and a third length greater than the first length of the first diameter portion of the first and second pegs. The third length is less than the sum of the first and second lengths. | 01-30-2014 |
20140018928 | STABILIZED KNEE PROSTHESIS - A knee prosthesis includes a femoral component, a tibial component, and a coupling component interconnecting the femoral component and the tibial component. The tibial component includes ball. The femoral component is configured to move relative to the tibial component. The coupling component defines an internal cavity including a first spherical end portion and a second spherical end portion. The internal cavity is dimensioned to receive the ball of the tibial component. The ball is repositioned between the first spherical end portion and the second spherical end portion of the internal cavity upon movement of the femoral component relative to the tibial component. | 01-16-2014 |
20140012390 | POROUS BONE REINFORCEMENTS - A method of reinforcing the bone in an acetabulum for receiving a prosthetic acetabular implant includes preparing a surface of the acetabulum to receive an acetabular implant. At least one porous generally cylindrical bone reinforcement element is provided. At least one bore is drilled in an area of the acetabulum receiving the prosthetic acetabular implant for receiving at least one and preferably more reinforcement elements in the form of cylindrical pilings. The cylindrical porous bone reinforcement element is inserted in the bore such that an exposed surface of the porous bone reinforcement element is adjacent the surface of the acetabulum. The acetabular implant is then implanted with an outer surface of the acetabular implant supported by the reinforcement members. | 01-09-2014 |
20140012265 | ORTHOPEDIC SAW BLADE - A saw blade has a base configured for attachment with a driver, the saw being configured for cutting bone. The saw blade includes a body extending from the base to a free end, the body enclosing at least three sides of an open area adjacent the base. The blade further includes a cutting edge having a width and disposed on the body adjacent to the free end thereof and adjacent to the open area such that at least a portion of the cutting edge is disposed toward the base. The open area of the saw blade can be sized to receive a portion of a long bone therein. | 01-09-2014 |
20130338675 | GLENOID BASEPLATE INSERTION TOOL - An insertion instrument for inserting an orthopedic implant into a bone and guiding an implant attachment element into the bone comprising: a body having a first end and a second end and a bore extending along a central axis; a fixed arm and a deflectable arm coupled to the body second end, the fixed arm spaced from the deflectable arm forming an attachment element receiving passageway therebetween extending along the central axis, the fixed arm having an implant engaging free end spaced a fixed distance from the central axis; and an actuator mounted on the first end of the body for moving the deflectable arm away from the fixed arm while allowing the attachment element to traverse the passageway. | 12-19-2013 |
20130331849 | GLENOSPHERE INSERTER AND IMPACTOR - An impactor for connection to a concave surface of an implant has a shaft extending along a first axis from a first end to a second end. The shaft first end includes a pivot surface surrounding an internal shaft bore. The internal bore extends along the first axis and is open at the first end and extends towards the second end about the first axis. The internal bore has a pin extending through the shaft and intersecting the bore. A resilient element is mounted in the shaft bore spaced towards the shaft second end. A post is mounted in the shaft bore along the first axis. The post has a first end engaging a threaded bore in the concave surface of the implant. The post has a second end engaging the resilient element and a slot therein slidably engaging the pin and a collar pivotally mounted on the shaft. | 12-12-2013 |
20130326859 | STEM WITH PRESSFIT POROUS ELEMENT - An implant assembly comprises a stem and an augment. The augment includes a porous outer region which is integrally formed onto a solid inner region. The augment further includes, solid posts integrally formed on the solid inner region and extend through the porous outer region to the outer surface of the augment. The posts are integrally formed with and surrounded by the porous region and are designed to allow assembly of the augment to the stem without damaging the structure of the porous region. A method of attaching the augment is described, wherein a tool is designed to grip to posts of the augment and apply loads through these posts during assembly. | 12-12-2013 |
20130325137 | LIMITED MOTION TIBIAL BEARING - A tibial implant comprising: a baseplate having a bone contacting surface, a bearing support surface and a proximally extending wall at least partially surrounding the bearing support surface; a bearing component slidably mounted with respect to the baseplate bearing support surface, the bearing component having a proximally facing condylar surface and a distally facing surface for contacting the baseplate bearing support surface the proximally and distally facing bearing component surfaces spaced to define a circumferential side surface therebetween; and an elastic gasket element interposed within a gap formed between the baseplate proximally extending wall and the bearing component circumferential side surface. | 12-05-2013 |
20130325134 | LATERAL ENTRY INSERT FOR CUP TRIAL - Trials for a reverse shoulder system are described. The trials generally include an insert housed within a humeral cup. The insert has a proximal end and a distal end, the proximal end having a concave recess therein adapted to receive a glenosphere prosthesis. The distal end of the insert includes a shaft, the shaft is substantially housed within the confines of the humeral cup. A distal end of the humeral cup is inserted in a humeral stem. | 12-05-2013 |
20130325133 | LATERAL ENTRY INSERT FOR CUP TRIAL - Trials for a reverse shoulder system are described. The trials generally include an insert housed within a humeral cup. The insert has a proximal end and a distal end, the proximal end having a concave recess therein adapted to receive a glenosphere prosthesis. The distal end of the insert includes a shaft, the shaft is substantially housed within the confines of the humeral cup. A distal end of the humeral cup is inserted in a humeral stem. | 12-05-2013 |
20130325130 | LATERAL ENTRY INSERT FOR CUP TRIAL - Trials for a reverse shoulder system are described. The trials generally include an insert housed within a humeral cup. The insert has a proximal end and a distal end, the proximal end having a concave recess therein adapted to receive a glenosphere prosthesis. The distal end of the insert includes a shaft, the shaft is substantially housed within the confines of the humeral cup. A distal end of the humeral cup is inserted in a humeral stem. | 12-05-2013 |
20130289733 | KIT FOR REPLICATING AN IMPLANTABLE PROSTHETIC DEVICE - A kit for replicating an implantable prosthetic devices includes a model implant, a geometric tool, and an insert. The model implant may include a first curved surface, and the first curved surface may include a first cutout formed. The geometric tool may include a second curved surface having a second cutout. The geometric configuration of the second cutout may be substantially identical to the geometric configuration of the first cutout of the model implant. The insert may be configured to be engaged with both the first cutout and the second cutout. | 10-31-2013 |
20130289727 | MULTIPLE COMPONENT BONE VOID FILLING IMPLANT - Disclosed herein are implants and methods for filling voids in a cranium of a patient. A craniofacial implant that may be used for filling such voids may include at least first and second components each having outer and inner surfaces, the outer and inner surfaces being curved in an inferior to posterior direction and a medial to lateral direction. The first component includes a flange extending outwardly from a medial side surface thereof and the second component includes a recessed portion extending inwardly from a medial side surface thereof. The first and second components are preferably engageable to one another such that the medial side surfaces of the first and second components are adjacent one another and the flange of the first component is housed within the recessed portion of the second component. | 10-31-2013 |
20130268085 | SURFACE MODIFIED UNIT CELL LATTICE STRUCTURES FOR OPTIMIZED SECURE FREEFORM FABRICATION - Aspects of the present disclosure relate generally to preparing models of three-dimensional structures. In particular, a model of a three-dimensional structure constructed of porous geometries is prepared. A component file including a porous CAD volume having a boundary is prepared. A space including the porous CAD volume is populated with unit cells. The unit cells are populated with porous geometries having a plurality of struts having nodes on each end. The space is populated with at least one elongated fixation element extending beyond the boundary to produce an interlocking feature enabling assembly or engagement with a mating structure. | 10-10-2013 |
20130267999 | KNOTLESS FILAMENT ANCHOR FOR SOFT TISSUE REPAIR - In one embodiment, the present invention includes a method for securing tissue to bone, including drilling a bone hole into the bone; passing a filament through the tissue, the filament including a first end, a second end and a length therebetween, the second end having a loop; passing the first end of the filament through the loop of the filament; pulling on the first end of the filament such that the loop travels along the length of the filament and to the tissue; passing an anchor along the length of the filament, from the first end towards the loop and tissue; engaging the loop with a distal end of the anchor; positioning the distal end of the anchor, with the loop of the filament, into the bone hole; and securing the anchor in the bone. | 10-10-2013 |
20130238025 | SUTURE ANCHOR IMPLANTATION INSTRUMENTATION SYSTEM - A system for implanting an anchor into bone, the system comprising a curved cannulated guide for percutaneous insertion, having a proximal end and a distal end; a flexible drill insertable through the curved guide from the proximal end to the distal end, the flexible drill having a shaft having a flexible portion; and a flexible inserter for inserting a suture anchor into a bore at the anatomical site formed by the flexible drill, the flexible inserter having a shaft having a flexible portion, wherein the flexible portions of both the flexible drill and flexible inserter include a series of discrete, interlocking segments. | 09-12-2013 |
20130226302 | INTERVERTEBRAL IMPLANT WITH INTEGRATED FIXATION - A system for spinal surgery includes a prosthesis comprising a plurality of bone anchors which engage an intervertebral construct for fusion or motion preservation. The fusion construct comprises a spacer optionally encircled by a jacket. The motion preservation construct may comprise an articulating disc assembly or an elastomeric disc assembly. Any of the constructs may occupy the intervertebral disc space between adjacent vertebrae after removal of an intervertebral disc. The anchors slidingly engage the construct to securely fix the prosthesis to the vertebrae. The anchors and jacket of the fusion construct provide a continuous load path across opposite sides of the prosthesis so as to resist antagonistic motions of the spine. | 08-29-2013 |
20130197866 | METHOD FOR DESIGNING A BONE MORPHOLOGY BASED HIP SYSTEM - A method of designing a group of femoral implants from three-dimensional images of femurs from a patient population greater than 100. A boundary between cortical and cancellous bone is defined in each of the images. A longitudinal axis of the femur is defined centered within the boundary. The width of the boundary is measured in a direction perpendicular to the axis at multiple cross-sections along the longitudinal axis spaced less than 20 mm. At least five (5) different size implants for implantation in a noncortical bone area of the femur are designed based on the measured widths. At least one area of the proximal femoral component boundary is designed where the implant outer surface is sized to be within 2 mm of the cortical bone. The proximal dimensions of the at least five implants are sized to provide the fit within 2 mm in 95% of the femurs from the population. | 08-01-2013 |
20130172892 | SYSTEMS AND METHODS FOR PREPARING BONE VOIDS TO RECEIVE A PROSTHESIS - Systems and methods for shaping and filling offset bone voids during revision procedures of total knee replacements are disclosed. The systems disclosed herein generally include an intramedullary reamer, an offset driver, a cylindrical reaming tool, an offset reaming guide, and a conical reamer. An alternate embodiment of the system may also generally include an IM reamer, an offset driver, an offset broaching tool, and a second stage broaching tool. Yet another embodiment may generally include an elongate IM reamer, a cone reamer, a reamer guide shaft, a cone trial, a sizing template, a template guide, an offset lobe reamer, and offset lobe reamer retainer. Metaphyseal reconstruction devices and void filling cones can be used to fill the bone voids in conjunction with the systems and methods disclosed herein. | 07-04-2013 |
20130150973 | REVERSE SHOULDER BASEPLATE WITH ALIGNMENT GUIDE FOR GLENOSPHERE - Disclosed herein is an implant assembly including an alignment guide for aligning the engagement between a glenosphere and baseplate via a central screw engaged to the baseplate. The glenosphere includes first and second recess portions. The first recess portion of the glenosphere is configured to engage a tapered side surface of the baseplate and the second recess portion of the glenosphere is configured to engage a portion of a head of the central screw projecting outwardly from a top surface of the baseplate when engaged thereto. The portion of the head of the central screw projecting outwardly from the baseplate is slip-fit into the second recess of the glenosphere. This engagement aids the alignment of the glenosphere and the baseplate and helps to ensure the accurate alignment of the tapered engagement of the side surface of the baseplate and the first recess of the glenosphere. | 06-13-2013 |
20130150858 | SURGICAL REAMING INSTRUMENT FOR SHAPING A BONE CAVITY - Disclosed herein are systems and methods for shaping bone voids during revision procedures of total knee replacements. The systems disclosed herein generally include a cannulated reamer assembly, a reaming guide assembly, a guide tube assembly, a trial stem assembly, and an optional insertion/removal tool. Metaphyseal reconstruction devices can be used to fill the bone voids in conjunction with the systems and methods disclosed herein. | 06-13-2013 |
20130131722 | FILAMENTARY SUTURE ANCHOR - In one embodiment of the present invention, a fixation device including a sleeve member including an interior and an exterior surface along a length defined between a first end and a second end, and at least two openings positioned along the length and extending from the interior and through the exterior surface; and a filament including a first free end and a second free end and a length therebetween, the filament positioned relative to the sleeve member such that the free ends extend from the sleeve member at the first and second ends of the sleeve member, the filament being disposed inside the interior from the first end to a first opening, outside the sleeve member from the first opening to a second opening, and inside the interior from the second opening to the second end of the sleeve member. | 05-23-2013 |
20130123926 | INTERVERTEBRAL IMPLANT WITH INTEGRATED FIXATION - A system for spinal surgery includes a prosthesis comprising a plurality of bone anchors which engage an intervertebral construct for fusion or motion preservation. The fusion construct comprises a spacer optionally encircled by a jacket. The motion preservation construct may comprise an articulating disc assembly or an elastomeric disc assembly. Any of the constructs may occupy the intervertebral disc space between adjacent vertebrae after removal of an intervertebral disc. The anchors slidingly engage the construct to securely fix the prosthesis to the vertebrae. The anchors and jacket of the fusion construct provide a continuous load path across opposite sides of the prosthesis so as to resist antagonistic motions of the spine. | 05-16-2013 |
20130110117 | DRILL GUIDE WITH ANGLE VERIFICATION | 05-02-2013 |
20130090657 | COMPOUND OFFSET HANDLE - A method for preparing a proximal femoral canal of a patient during total hip replacement surgery uses an instrument having a handle, a shaping member including structure configured to shape bone, wherein the structure configured to shape bone comprises at least two cutting surfaces on opposite sides of the shaping member, and a connecting member connecting the handle and the shaping member, the connecting member having a plurality of transverse cross sections. The connecting member includes a dual offset including a first compound bend between the connecting member and the handle, wherein when following a direction from the connecting member to the handle, the first compound bend includes a bend in a posterior direction and a bend in a lateral direction. The connecting member also includes a second compound bend between the connecting member and the shaping member, the second compound bend in an anterior and a medial direction. | 04-11-2013 |
20130072976 | KNOTLESS SUTURE ANCHOR FOR SOFT TISSUE REPAIR AND METHOD OF USE - In one embodiment, the present invention includes a knotless suture anchor for implanting in bone including an outer tubular member having a distal end, a proximal end, an outer wall, and an at least one aperture through the outer wall; an inner member being rotatably disposed within the outer tubular member, the inner member having an at least one aperture for receiving at least one suture thread; a pointed tip configured to facilitate impaction of the anchor into the bone; and at least one suture thread guide positioned on the outer tubular member, wherein the at least one suture thread is positioned through the at least one suture thread guide, the at least one aperture of the outer tubular member, and the at least one aperture of the inner member. | 03-21-2013 |
20130072975 | KNOTLESS SUTURE ANCHOR FOR SOFT TISSUE REPAIR AND METHOD OF USE - In one embodiment, the present invention includes a method for holding soft tissue in apposition with a bone using a suture, the method including engaging the soft tissue with an engaging portion of a suture thread; engaging an end of the suture thread with a rotatable shaft of an anchor; implanting the rotatable shaft in the bone; and rotating the shaft in a first direction to wrap the engaged suture thread onto the shaft thereby increasing tension on the suture and on the soft tissue. | 03-21-2013 |
20130064711 | POLYETHYLENE CROSS-LINKED WITH AN ANTHOCYANIN - A method for manufacturing of ultrahigh molecular weight polyethylene (UHMWPE) for implants, where the implants have been machined out of UHMWPE blocks or extruded rods, has anthocyanin dispersely imbedded in the polyethylene. The implant is then exposed to γ ray or electron beam irradiation in an amount of at least 2.5 Mrad followed by a heat treatment to prevent the implant from becoming brittle in the long term as well as to improve strength and wear. The method includes mixing a powder or granulate resin of UHMWPE with an aqueous liquid that contains anthocyanin in a predetermined amount. The water is then evaporated to deposit the anthocyanin in a predetermined concentration on the polyethylene particles. The doped UHMWPE particles are compressed into blocks at temperatures in a range of approximately 135° C.-250° C. and pressures in a range of approximately 2-70 MPa. Medical implants are made from the blocks. | 03-14-2013 |
20130056912 | LASER-PRODUCED POROUS SURFACE - The present invention disclosed a method of producing a three-dimensional porous tissue in-growth structure. The method includes the steps of depositing a first layer of metal powder and scanning the first layer of metal powder with a laser beam to form a portion of a plurality of predetermined unit cells. Depositing at least one additional layer of metal powder onto a previous layer and repeating the step of scanning a laser beam for at least one of the additional layers in order to continuing forming the predetermined unit cells. The method further includes continuing the depositing and scanning steps to form a medical implant. | 03-07-2013 |
20130046042 | SEQUENTIALLY CROSS-LINKED POLYETHYLENE - A method of producing an improved polyethylene, especially an ultra-high molecular weight polyethylene utilizes a sequential irradiation and annealing process to form a highly cross-linked polyethylene material. The use of sequential irradiation followed by sequential annealing after each irradiation allows each dose of irradiation in the series of doses to be relatively low while achieving a total dose which is sufficiently high to cross-link the material. The process may either be applied to a preformed material such as a rod or bar or sheet made from polyethylene resin or may be applied to a finished polyethylene part. | 02-21-2013 |
20130041411 | DEVICE FOR SECURING SPINAL RODS - A device is disclosed for securing a spinal rod to the spine which includes a head portion configured to receive a spinal rod, a locking cap configured to engage the head portion and the spinal rod upon rotation of the locking cap relative to the head portion to secure the position of the head portion relative to the spinal rod, and a fastener portion depending from the head portion and configured to engage the spine. The locking cap has discontinuous opposed engagement flanges that are received within opposed engagement slots of the head portion when the locking cap is rotated into a locked position. | 02-14-2013 |
20130030442 | PCL GUIDES FOR DRILLING TIBIAL AND FEMORAL TUNNELS - Disclosed are femoral and tibial drill guides for use in posterior cruciate ligament replacement surgery. Each of the drill guides includes an arc shaped member and an elongate guide member, a stopper member, and an alignment arm member coupled thereto. Prior to preparing a tibial tunnel with a tibial drill guide and a femoral tunnel with a femoral drill guide, a rasp and/or cutter can be used to remove any remnants of the posterior cruciate ligament left prior to replacement thereof. The tibial drill guide includes a concave blocking surface and a viewing aperture on the alignment arm member to block the advancement and view the location of a guide pin exiting from a posterior portion of a tibia, respectively. | 01-31-2013 |
20130023885 | Unidirectional Plunger Device For Syringe - A unidirectional plunger device for a syringe includes a base member and a ratchet mechanism. The base member is configured to attach to the proximal end of the syringe body such that the ratchet mechanism engages the plunger of the syringe. The ratchet mechanism may include a pawl configured to engage teeth on a plunger rod of the plunger. The ratchet mechanism is desirably configured to permit distal movement of the plunger while resisting proximal movement of the plunger. The unidirectional plunger device may be a retrofit that can be attached to (e.g., clipped onto) an existing syringe design. The device may be used in conjunction with a two-barrel syringe for dispensing a two-part curable composition, such as calcium phosphate bone cement or epoxy resin. | 01-24-2013 |
20120330428 | EXPANDABLE REVERSE SHOULDER TRIAL - Described herein is an expandable shoulder trial for a reverse shoulder system including a rotatably adjustable insert housed within a humeral cup. The insert has proximal and distal ends, the proximal end having a concave recess therein adapted to receive a glenosphere prosthesis. The distal end of the insert includes a shaft, the shaft having a helical groove disposed on at least a portion thereof. A distal end of the humeral cup is inserted in a humeral stem. The humeral cup has a proximal end including a recess therein, the recess defined by a circular wall. A guide pin protrudes from the circular wall and is adapted to engage the helical groove of the insert shaft. The proximal end of the insert may rotate along an axis toward the proximal end of the humeral cup and along the same axis away from the proximal end of the humeral cup. | 12-27-2012 |
20120330318 | CUTTING GUIDE FOR REMOVAL OF CAM LESION - A cutting guide for removing a lesion from a neck area of a femur has a body having first and second side rails. The first and second side rails are spaced in a direction perpendicular to the head neck axis of the femur when mounted adjacent a neck of the femur. A third rail has ends slidably mounted on the first and second side rails. The third rail can be resiliently deformable toward a surface of the neck of the femur. A carrier element slidably mounted on the third rail for movement therealong between the first rail and the second rail. A bone cutting tool such as a burr is mountable in the carrier element. The first and second rails are connected by a proximal rigid cross-member at first ends thereof adjacent a femoral head. The cross-member is shaped to conform to an outer surface of the femoral neck adjacent the femoral head. The second ends of the first and second rails are connected by a member having a mounting element thereon adjacent a trochanter area of the femur. The mounting element may be a bore for receiving a bone screw or bone pin. | 12-27-2012 |
20120328578 | PRIMED STEM CELLS AND USES THEREOF TO TREAT INFLAMMATORY CONDITIONS IN JOINTS - Disclosed are methods of treating inflammation within a synovial joint, comprising administering to the joint a composition comprising primed stem or progenitor cells in an amount effective to enhance recovery, and a pharmaceutically acceptable carrier. | 12-27-2012 |
20120303122 | PROSTHETIC IMPLANT AND ASSOCIATED INSTRUMENTS - A prosthetic implant comprises an articular surface and a bone contacting surface. The articular surface has a first concavity extending along a first curved axis and the bone contacting surface has a convexity extending along a second curved axis. Geometric relationships between the concavity of the articular surface and convexity of the bone contacting surface are described. A resulting feature of this implant is a bone contacting surface including both planar and non-planar geometries. Instrumentation and a method for the preparation of the non-planar bone surface are also described. | 11-29-2012 |
20120283837 | INTERVERTEBRAL IMPLANT WITH INTEGRATED FIXATION - A surgical instrument and method for inserting a spinal implant in the intervertebral disc space between two adjacent vertebrae and an anchor engageable with the implant and an adjacent vertebra are provided. The instrument includes an inserter having an engagement portion including a distal engagement surface for interfacing with the implant and a handle portion. The engagement portion includes a track for slidably translating the anchor toward the engagement surface. A kit is provided including the inserter and a tamp to force the anchor into engagement with the implant and the adjacent vertebra. The kit may also include a cutter for piercing the adjacent vertebra. | 11-08-2012 |
20120274631 | SURGICAL CASE PLANNING PLATFORM - Computer-implemented systems and methods of preoperatively planning a present surgical case including a surgical site located on a portion of a body of a patient are disclosed herein. Such methods may include converting at least one image of the surgical site into a three-dimensional model displayable on a display means and manipulating the model such that the model is displayable on the display means as a corrected model representing a corrected surgical site. The method may further include providing at least one medical device from a library of medical devices stored in a device database and providing a plurality of previous surgical cases maintained in a case database the plurality of previous surgical cases being made available for preoperatively planning the present surgical case. | 11-01-2012 |
20120265205 | FLEXIBLE ACL INSTRUMENTATION, KIT AND METHOD - In a first embodiment, the present invention includes an instrument for use in preparing a femur for soft tissue repair or reconstruction, including a cannulated, curved guide tool having a cannulated body extending to a distal tip and a plane defined by a longitudinal axis of the cannulated body and distal tip; and a flange secured to the distal tip and extending from the distal tip in a direction transverse from the distal tip, the flange having a first curve along at least a portion of the flange and a degree of tilt, relative to the plane, along at least a portion of the flange. In an alternate embodiment, the present invention may also include a method of preparing a bone for reattachment of soft tissue thereto, including visualizing a reattachment site; selecting a guide tool from a plurality of cannulated curved guide tools, each of the plurality of guide tools having a distal tip that includes a flange; directing the distal tip of the selected guide tool towards the reattachment site; and placing the flange against the surrounding anatomy such that the distal tip is on the reattachment site. | 10-18-2012 |
20120259334 | EXPANDING TRIAL STEM FOR ORTHOPAEDIC SURGERY - A trial device and a method for using the device in surgery are disclosed. The device includes a body including a proximal portion and a distal portion. The proximal portion has a post or trunion projecting therefrom. The distal portion extends from the proximal portion and includes a first arm and a second arm, the first and second arms being movable with respect to one another. The body further includes a cavity formed therein so as to extend through the proximal portion and into the distal portion. The device further includes a driver adapted for sliding engagement within the internal cavity of the body such that movement of the driver, preferably in a distal direction, causes movement of a portion of the first arm away from a portion of the second arm. | 10-11-2012 |
20120258086 | PLATELET SOLUTION FOR USE IN JOINT SURGERY - The invention is directed to a method of accelerating healing in a joint comprising administering a platelet composition to the joint. | 10-11-2012 |
20120253474 | PLATFORM FOR SOFT TISSUE ATTACHMENT - One embodiment of the implant comprises a porous metal bone ingrowth portion ( | 10-04-2012 |
20120253406 | INTERVERTEBRAL IMPLANT WITH INTEGRATED FIXATION - A surgical instrument and method are provided for removal of a spinal implant from the intervertebral disc space. The instrument includes a carriage body for interfacing with the implant, a housing for interfacing with the vertebrae, and a handle portion having a first portion rotatably coupled with a proximal end of the housing and a second portion rotatably engageable with a proximal attachment portion of the carriage body. A central passage of the housing extends between the proximal end and a distal engagement surface of the housing. The central passage is dimensioned to mate with the carriage body. Rotation of the handle portion about an axis causes translational movement of the carriage body along the axis. A modular inserter/distracter apparatus and method and an anchor remover and method are also provided. | 10-04-2012 |
20120245630 | TOGGLE BOLT SUTURE ANCHOR - In one embodiment, the present invention may include a system for securing soft tissue relative to a bone including a tissue anchor having a substantially planar body having a channel and at least one bore hole; an inserter rod having a longitudinal length and adapted to be positioned within the channel of the tissue anchor; and an engagement structure on at least one of the channel or the inserter rod adapted to removeably affix the tissue anchor to the inserter rod. | 09-27-2012 |
20120230967 | DEVICE AND METHOD TO ACTIVATE PLATELETS - The present invention includes a method for activating platelets in a platelet solution, the method may include passing the platelet solution through an activator at least once to activate at least one of the platelets in the platelet solution to produce an activated platelet solution. The activator may further include a flow disruption element. The method may further induce administering the activated platelet solution to the repair site of a patient. The present invention may also be a system for treating a medical condition at a repair site within a patient in need thereof, which may include a platelet solution container for housing a platelet solution; an activator to activate at least one platelet; and an introducer to direct the at least one activated platelet to the repair site. | 09-13-2012 |
20120209398 | ACETABULAR CUP WITH ROTATABLE BEARING MEMBER - A prosthetic hip implant system includes a prosthetic femoral component having a stem portion, a neck portion coupled to the stem portion and a part-spherical head coupled to the neck portion. An acetabular component is provided which has a housing, the housing having a part-spherical inner surface having an open end with a circumferential rim portion. The rim portion has a circumferential radially inwardly extending flange. A bearing element is mounted within the housing and has a part-spherical first outer surface region engaging the part-spherical inner surface of the housing. The part-spherical first outer surface region extends at a first radius from a center. The bearing element has a second part-spherical outer surface region extending a distance from the center less than the first radius to form a stop surface for contacting the rim. | 08-16-2012 |
20120209397 | ACETABULAR CUP WITH ROTATABLE BEARING - A prosthetic hip implant system includes a prosthetic femoral component having a stem portion, a neck portion coupled to the stem portion and a part-spherical head coupled to the neck portion. An acetabular component is provided which has a housing, the housing having a part-spherical inner surface having an open end with a circumferential rim portion. The rim portion has a circumferential radially inwardly extending flange. A bearing element is mounted within the housing and has a part-spherical first outer surface region engaging the part-spherical inner surface of the housing. The part-spherical first outer surface region extends at a first radius from a center. The bearing element has a second part-spherical outer surface region extending a distance from the center less than the first radius to form a stop surface for contacting the rim. | 08-16-2012 |
20120203354 | SOFT TISSUE ATTACHMENT MECHANISM - A prosthesis humeral implant has a stem including a coupling element at a proximal end thereof and a head having a coupling element at a distal portion thereof for coupling to the stem portion coupling element. The head has a bearing surface portion for articulating on a prosthetic glenoid and a base portion. A soft tissue attachment element has an L-shape with a mounting flange portion of the L-shape extending and clamped between the bearing portion and base portion. The soft tissue attachment portion has a portion extending proximally from the mounting flange portion. The soft tissue attachment element mounting portion is captured between the head bearing portion and base portion preferably by clamping or being permanently attached to one of the base or bearing portions during manufacture. | 08-09-2012 |
20120203231 | FLEXIBLE MICRODRILLING INSTRUMENTATION, KITS AND METHODS - In one embodiment, the present invention may include a method of performing microdrilling surgery including directing a distal portion of a cannulated guide having an angle of curvature adjacent to a defect site; directing a drill, including a drill head and a flexible shaft, through the cannulated guide from a proximal portion of the guide through the distal portion and towards the defect site; drilling at least one hole into the defect site; and removing the drill and cannulated guide from the defect site and allowing blood or bone marrow to flow into the at least one hole towards the defect site. | 08-09-2012 |
20120191203 | IMPLANT PACKAGE - A system for packaging a medical implant may include a sleeve for housing the implant within a cavity in the sleeve, with at least a portion of the cavity conforming to the shape of the implant. A flexible material film may cover and substantially conform to the shape of the sleeve so as to aid in stabilizing the sleeve and implant within an outer package. An insertion instrument for inserting the implant within the body of a patient may also be provided with the system. In some embodiments, the sleeve, with the implant inserted in the cavity of the sleeve, is configured for manipulation by a user without contacting the implant, and the implant is connectable to the insertion instrument while in the sleeve. | 07-26-2012 |
20120187607 | POLYETHYLENE CROSS-LINKED WITH AN ANTHOCYANIN - A method for manufacturing of ultrahigh molecular weight polyethylene (UHMWPE) for implants, where the implants have been machined out of UHMWPE blocks or extruded rods, has anthocyanin dispersely imbedded in the polyethylene. The implant is then exposed to γ ray or electron beam irradiation in an amount of at least 2.5 Mrad followed by a heat treatment to prevent the implant from becoming brittle in the long term as well as to improve strength and wear. The method includes mixing a powder or granulate resin of UHMWPE with an aqueous liquid that contains anthocyanin in a predetermined amount. The water is evaporated in order to deposit the anthocyanin in a predetermined concentration on the polyethylene particles. The doped UHMWPE particles are compressed into blocks at temperatures in a range of approximately 135° C.-250° C. and pressures in a range of approximately 2-70 MPa. Medical implants are made from the blocks. | 07-26-2012 |
20120180291 | TOGGLE BOLT ASSEMBLY AND METHOD OF ASSEMBLY - The present invention includes a method of assembling an anchor for use in tissue comprising an anchor body, a continuous closed suture loop and an insert, the method comprising positioning a portion of the continuous closed suture loop through an opening in the anchor body; positioning the insert adjacent the portion of the continuous closed suture loop which was passed through the opening; and securing the insert to the anchor body such that the continuous closed suture loop is secured to the anchor body by the insert. | 07-19-2012 |
20120179266 | BICRUCIATE RETAINING TIBIAL BASEPLATE DESIGN AND METHOD OF IMPLANTATION - A base component for a tibial implant has a lateral compartment and a medial compartment spaced from the lateral compartment defining an open central section therebetween. A connecting portion connects the medial and lateral compartments at an anterior end of the base component which anterior end is located adjacent the anterior tibia. The open central section of the base component intermediate the spaced medial and lateral compartments is open to a posterior end of the base component. The medial and lateral compartments have a bone contacting surface and a superiorly facing surface. The connecting portion has a curved anteriorly facing surface and has a first angled surface extending at an angle from adjacent the anterior end of the base component at a bone contacting surface of the connecting portion superiorly to a posterior end of the connecting portion. The first angled surface defining an anterior end of the open central section. | 07-12-2012 |
20120165876 | APPARATUS FOR SECURING A SPINAL ROD SYSTEM - The present invention includes a method of securing a spinal rod to an anchoring device, including releasably securing a locking cap to a distal end of an insertion instrument, the instrument having an outer tubular body, a rod persuader, and a locking shaft, each of the tubular body, rod persuader and locking shaft having proximal and distal ends and positioned coaxial with one another; positioning the distal end of the insertion instrument, and locking cap, into operative engagement with the spinal rod; engaging the anchoring device with the distal end of the tubular body; rotating the proximal end of the rod persuader to longitudinally advance the locking cap and spinal rod distally towards the anchoring device, the proximal end and the distal end of the rod persuader being rotatable relative to one another; and after the locking cap is advanced, rotating the locking shaft to rotate the locking cap thereby. | 06-28-2012 |
20120143346 | MODULAR HIP STEM SYSTEM - A kit of modular prosthetic hip components includes a first neck having a coupling element thereon. First and second hip stems each have a coupling element at a proximal end thereof for connecting to the coupling element of the first neck. The first and second hip stems have a progressively larger medial-lateral dimension in a proximal portion thereof. The coupling element on each of the first and second hip stems is located at a different medial-lateral location thereon with the coupling element located more medially and proximally on the second stem than the first stem. The first neck forms an identical first neck angle with a proximal-distal axis of the respective first and second stems. The coupling elements on the first and second stems locate a head mounted on the first neck in the same proximal-distal location but a different medial-lateral location with respect to an acetabulum. | 06-07-2012 |
20120143195 | DRIVE TOOL HAVING AN ANGLED CONNECTOR - A tool connecting device has a first member extending along a first axis and has an internal cavity adjacent a first end and a threaded outer surface. A second member extends along a second axis and has a tool at a first end and a joint element at a second end. The joint element is pivotally mounted in the cavity of the first member. The second member has an angled surface intermediate the first and second ends. The angled surface is angled outwardly in a direction from the second to the first end. A sleeve is provided which has a threaded inner bore mounted on the threaded outer surface of the first member and is capable of moving along the first axis. The sleeve has a tapered leading end for contacting the angled surface of the second member. The sleeve is movable on the first member to multiple positions along the first axis each position allowing an angle between the second axis and the first axis to be limited to any angle between 0 degrees and approximately 45 degrees. | 06-07-2012 |
20120116406 | IP PRECISION BLADE GUIDE - A bone resection system for a prosthetic implant having an anterior and posterior outer surface attached to bone has a cutting guide having slotted guide surfaces thereon mountable on the prosthetic implant. The guide surfaces are alignable with the implant outer anterior and posterior surfaces. A saw comprising a housing having spaced apart first and second sides joined by first and second edge surfaces and having a proximal end and a distal end can be inserted into the slotted guide surfaces. A cutting head drive system on the housing drives a cutting head having teeth extending outwardly of the distal end of the housing. A cam element is mounted on the saw housing intermediate the proximal and the distal ends. The cam element has a distal end with a guide arm extending therefrom engagable, during insertion, with the guide surface on the cutting guide. The cam element having a stop surface for engaging a stop surface on the cutting guide to limit blade travel. | 05-10-2012 |
20120101591 | STEM WITH PRESSFIT POROUS ELEMENT - An implant assembly comprises a stem and an augment. The augment includes a porous outer region which is integrally formed onto a solid inner region. The augment further includes, solid posts integrally formed on the solid inner region and extend through the porous outer region to the outer surface of the augment. The posts are integrally formed with and surrounded by the porous region and are designed to allow assembly of the augment to the stem without damaging the structure of the porous region. A method of attaching the augment is described, wherein a tool is designed to grip to posts of the augment and apply loads through these posts during assembly. | 04-26-2012 |
20120095473 | AUTOMATICALLY ADJUSTING PATELLA CUTTING GUIDE - A patella clamping device has a handle having a first arm and a second arm, the first and second arms each having a first gripping end and a second clamping end. The clamping end of each arm is movable towards the opposite arm by action on the gripping end of each arm. The clamping end of the first arm comprises a clamping surface opposed to a clamping surface on the clamping end of the second arm. The clamping end of each arm has a body portion having spaced first and second surface defining the opposed surface of each arm. A plurality of pins extend from the first surface to the second surface on each arm clamping end. A rotatable toothed jaw member is pivotally mounted on each of the pins. The jaw member has at least one tooth extending outwardly of the opposed surface of each arm for engaging the patella. Each body has a third surface spaced from the second surface to create a slot for receiving a saw blade. | 04-19-2012 |
20120089146 | SYSTEM AND METHOD OF BONE PREPARATION - The invention includes a system, method and kit for preparation of a bone. One aspect of the present invention is a bone preparation system comprising a cutting instrument and a guiding element. The cutting instrument includes a distal attachment feature and a distal region. The guiding element includes a proximal attachment feature and a guiding surface. When the proximal attachment feature of the guiding element is engaged with the distal attachment feature of the cutting instrument, the cutting instrument can pivot about the proximal attachment feature until the distal region contacts the guiding surface. | 04-12-2012 |
20120082705 | Tetra Calcium Phosphate Based Organophosphorus Compositions and Methods - Compositions and methods of their use to adhere a variety of materials together are disclosed herein. The compositions include at least tetra calcium phosphate, an effective amount of a compound that is structurally similar to phosphoserine, and can be mixed with an aqueous solution. The compositions provide adhesive and cohesive strength in both wet and dry environments and exhibit significant bond strength upon curing. | 04-05-2012 |
20120067853 | METHODS FOR MANUFACTURING POROUS ORTHOPAEDIC IMPLANTS - A method of manufacturing an orthopaedic implant device having a porous outer surface is described. In one embodiment, the implant device includes a porous layer, an intermediate layer, and a solid substrate. The porous layer is preferably bonded to the intermediate layer by cold isostatic pressing. The intermediate layer is preferably bonded by vacuum welding to the solid substrate such that the porous layer forms at least a portion of the outer surface of the orthopaedic implant device. Preferably, a diffusion bond is created between the bonded intermediate layer and the solid substrate by hot isostatic pressing. In another embodiment, a porous layer is created on an outer surface of a solid layer by selective melting. Preferably, the solid layer is bonded to the solid substrate such that the porous layer forms at least a portion of the outer surface of the orthopaedic implant device. | 03-22-2012 |
20120029649 | STABILIZED KNEE PROSTHESIS - A knee prosthesis includes a femoral component, a tibial component, and a coupling component interconnecting the femoral component and the tibial component. The tibial component includes ball. The femoral component is configured to move relative to the tibial component. The coupling component defines an internal cavity including a first spherical end portion and a second spherical end portion. The internal cavity is dimensioned to receive the ball of the tibial component. The ball is repositioned between the first spherical end portion and the second spherical end portion of the internal cavity upon movement of the femoral component relative to the tibial component. | 02-02-2012 |
20120029160 | SEQUENTIALLY CROSS-LINKED POLYETHYLENE - A method of producing an improved polyethylene, especially an ultra-high molecular weight polyethylene utilizes a sequential irradiation and annealing process to form a highly cross-linked polyethylene material. The use of sequential irradiation followed by sequential annealing after each irradiation allows each dose of irradiation in the series of doses to be relatively low while achieving a total dose which is sufficiently high to cross-link the material. The process may either be applied to a preformed material such as a rod or bar or sheet made from polyethylene resin or may be applied to a finished polyethylene part. | 02-02-2012 |
20120016482 | PROSTHETIC KNEE VOID FILERS WITH SPLINED FIXATION - Disclosed herein are systems and methods for filling bone voids which may be present at the time of surgery. The systems disclosed herein generally include a baseplate component, a spacer component, and void filler component. The spacer component is generally assembled to the baseplate component with a taper or press-fit, for example, in one of a plurality of selected axial positions. The void filler component is then generally assembled to the spacer component in one of a plurality of selected axial positions. The void filler component preferably has an outer surface with portions having varying diameters such that the outer surface thereof can be received within a canal of a bone and contact the bone forming the canal at different locations in order to aid in stabilizing the assembled components in the canal. | 01-19-2012 |
20110313424 | PATIENT-SPECIFIC TOTAL HIP ARTHROPLASTY - Disclosed herein are systems and methods for performing total hip arthroplasty with patient-specific guides Pre-operative images of a pelvic region of a patient are taken in order to predefine the structure of the guides and corresponding implants. From the obtained image data an insertional vector for implanting an acetabular implant or component into an acetabulum of the patient is determined, wherein the insertional vector is coaxial with a polar axis of the acetabular component. Also from the obtained image data, a superior surface of the guides and implants can be shaped to match the acetabulum of the patient. A nub portion extending outwardly from the superior surface of the guides and implants is shaped to substantially match the shape of a fovea of the acetabulum. A guide portion of the guides forming a slot has a longitudinal axis coaxial with the determined insertional vector of a corresponding acetabular component. | 12-22-2011 |
20110276143 | SURFACE CROSSLINKED POLYETHYLENE - A method for producing a wear resistant polyethylene medical implant includes forming a medical implant, such as an orthopedic implant, made at least partially of ultra high molecular weight polyethylene (UHMWPE). The polyethylene may be irradiated with gamma ray or e-beam radiation to form free radicals and then crosslinked to eliminate free radicals prior to exposure to oxygen. The so treated bearing surface of the crosslinked polyethylene is then coated with a photoinitiator. Thereafter the bearing material is photocrosslinked with ultra-violet (UV) radiation. The photocrosslinking process can also be applied to non-crosslink UHMWPE. | 11-10-2011 |
20110251626 | SUTURE PASSER ASSEMBLY - A surgical instrument and method of using same are provided. The instrument includes a jaw portion extending along an axis and a handle portion rotatably connected with the jaw portion and configured to at least partially rotate about the axis with respect to the jaw portion. A needle assembly can be configured to pass through the jaw portion and along the axis by cooperation with the handle portion. The jaw portion, or a shaft portion connecting the jaw portion and the handle portion, can include at least one spring-assisted bearing and the handle portion can include at least one depression configured to engage the at least one spring-assisted bearing in an orientation that temporarily locks the shaft portion with respect to handle portion. A method includes rotating the handle portion with respect to the jaw portion and actuating the instrument to pass a portion of a suture through tissue. | 10-13-2011 |
20110224325 | POLYETHYLENE CROSS-LINKED WITH AN ANTHOCYANIN - A method for manufacturing of ultrahigh molecular weight polyethylene (UHMWPE) for implants, where the implants have been machined out of UHMWPE blocks or extruded rods, has anthocyanin dispersely imbedded in the polyethylene. The implant is then exposed to γ ray or electron beam irradiation in an amount of at least 2.5 Mrad followed by a heat treatment to prevent the implant from becoming brittle in the long term as well as to improve strength and wear. The method includes mixing a powder or granulate resin of UHMWPE with an aqueous liquid that contains anthocyanin in a predetermined amount. The water is then evaporated in order to deposit the anthocyanin in a predetermined concentration on the polyethylene particles. The doped UHMWPE particles are compressed into blocks at temperatures in a range of approximately 135° C.-250° C. and pressures in a range of approximately 2-70 MPa. Medical implants are made from the blocks. | 09-15-2011 |
20110208194 | FLEXIBLE ACL INSTRUMENTATION, KIT AND METHOD - In a first embodiment, the present invention includes an instrumentation system for preparing a bone for soft tissue repair, the instrumentation system including a flexible drill pin capable of bending along a curved path; an aimer capable of engaging the flexible pin to bend the flexible pin; and a flexible reamer having a flexible portion along at least a portion of its length, the flexible portion comprising a plurality of laser cuts. In an alternate embodiment, the present invention may also include a method for preparing a bone tunnel in a femur adjacent a knee joint, the method including introducing a flexible drill pin into the knee joint; guiding the flexible drill pin towards a surface of the femur with an instrument introduced into the knee joint; drilling the flexible drill pin into the femur; removing the instrument from the knee joint; introducing a cannulated flexible reamer into the knee joint by placing the flexible pin within the cannulation of the flexible reamer; and reaming the bone tunnel in the femur along the path of the flexible pin. | 08-25-2011 |
20110203406 | ONE-PIECE BALL PLUNGER - A one-piece spring detent has a head portion having an external thread and a drive element at a first end. A coil spring portion of the one-piece spring detent has a first end integrally formed on a second end of the head. The coil spring portion extends away from the second end of the head. A detent element is integrally formed on a second end of the coil spring portion. The detent element has an outer surface for contacting a stop surface on a moving part adjacent the detent. | 08-25-2011 |
20110184423 | INSERTER FOR LOCATING AND IMPACTING AN ACETABULAR CUP - An inserter for locating and impacting an acetabular cup which has an inner bearing surface in a prepared acetabulum. The inserter has a handle carrying an anvil, an impaction head adapted to receive the cup and a retention system for attaching the cup to the inserter. The retention system extends between an actuator in the handle and the impaction head. The actuator is operable to free the retention system from the cup by impacting the anvil. | 07-28-2011 |
20110160734 | COMPOUND OFFSET HANDLE - A method for preparing a proximal femoral canal of a patient during total hip replacement surgery uses a shaping instrument or broach having a proximal portion with an anterior surface, and a posterior surface, each surface being spaced apart from a medial-lateral plane through the shaping instrument. A handle portion having a proximal portion having a first longitudinal axis is connected to a transition portion having a second longitudinal axis and a distal portion having a third longitudinal axis. Wherein the handle comprises a dual offset including a first compound bend between the transition portion and the proximal portion and wherein, when following a direction from the transition portion to the proximal portion, the first compound bend includes a bend in the posterior direction and a bend in the lateral direction, and wherein the first compound bend is less than 90 degrees. No plane extending through the proximal portion is coplanar with a plane extending through both the transition portion and the distal portion. | 06-30-2011 |
20110155592 | Implant package - A packaging assembly includes a substantially rigid base having a cavity dimensioned to receive a medical implant, a sleeve positioned in the cavity of the substantially rigid base and defining an opening dimensioned to receive the medical implant, and a skin pack lid sealed over the substantially rigid base to enclose and secure the sleeve within the cavity of the substantially rigid base. The sleeve has a shape substantially similar to a shape of the medical implant and substantially envelopes the medical implant when the medical implant is positioned in the opening of the sleeve. The skin pack lid has a geometry that substantially conforms to the shape of the sleeve. | 06-30-2011 |
20110153000 | NON-DESTRUCTIVE TISSUE REPAIR AND REGENERATION - A surgical stent made of biocompatible material for implantation in human tissue to enable blood and nutrients to flow from an area of vascular tissue to an area of tissue with little or no vasculature. | 06-23-2011 |
20110152954 | BROACH HANDLE WITH FLEXURE SPRING - An instrument for holding a surgical tool or bone implant includes a handle with a bearing surface formed in one end for engaging the surgical tool. An elastically deformable plate is mounted on the handle body the plate having a catch element formed on a leading end thereof adapted to engage a coupling element formed on the surgical tool. The elastically deformable plate includes a cam follower formed in a recess thereon and includes a deformable spring section intermediate the can elements and the plate end with the catch element. An elongated pivotable loading member is rotatably mounted on the handle body. The loading member includes a cam surface for engaging the cam follower surface on the deformable plate. The cam surface on the loading member is shaped to elastically deform the elastically deformable plate section in a direction away from the plate catch element to thereby load and maintain a connecting force between the plate and the surgical tool or bone implant. | 06-23-2011 |
20110152195 | POST IRRADIATION SHELF-STABLE DUAL PASTE DIRECT INJECTABLE BONE CEMENT PRECURSOR SYSTEMS AND METHODS OF MAKING SAME - The present invention relates to a bone cement precursor system that is presented in the form of two shelf-stable pastes which have been terminally sterilized and are held in separate containers during product transport and storage. When the product is used during surgery, these pastes inject to a site of application through a static mixing device by the action of applied injection force. When the two pastes are mixed, they start to react to each other while injecting out. The resulting composition is highly biocompatible, osteoconductive, injectable, rapid setting and bioresorbable, and is useful in connection with bone repair procedures, for example, in the craniomaxillofacial, trauma and orthopedic areas. | 06-23-2011 |
20110125189 | TOGGLE BOLT SUTURE ANCHOR KIT - A toggle bolt suture anchor kit and method of using the kit is presented. The kit comprises a toggle bolt suture anchor and a toggle bolt delivery device. The toggle bolt suture anchor has at least one toggle bolt delivery device interconnection means. The toggle bolt delivery device has at least one toggle bolt suture anchor interconnection means. The toggle bolt delivery device enables the toggle bolt suture anchor to be pushed into its final position. | 05-26-2011 |
20110082425 | Bone Marrow Aspirator And Methods Therefor - A device and method for aspirating fluid from a body cavity are disclosed herein. The device disclosed utilizes a reservoir in fluid communication with a needle via a tube connected to a pump. The needle is able to displace a desired distance. Further, the aspirator includes a selector switch capable having three positions. In the first position anticoagulant is pumped through the system. In the second position bone marrow is aspirated but the needle is not moved. In the third position the displacement of the needle is controlled as well as the volume in the reservoir. Further, in the third position, the volume in the reservoir and the needle displacement are proportional to one another. | 04-07-2011 |
20110054625 | Prosthesis Having A Soft Tissue Attachment Element - A prosthetic bone implant, the bone implant forming one side of a joint and including a prosthesis and a soft tissue attachment component. The soft tissue attachment component is connected to the bone implant and extends outwardly therefrom and towards a joint line. The soft tissue attachment component is moveable with respect to the prosthesis while connected thereto. | 03-03-2011 |
20110054623 | SOFT TISSUE ATTACHMENT MECHANISM - A prosthesis humeral implant has a stem including a coupling element at a proximal end thereof and a head having a coupling element at a distal portion thereof for coupling to the stem portion coupling element. The head has a bearing surface portion for articulating on a prosthetic glenoid and a base portion. A soft tissue attachment element has an L-shape with a mounting flange portion of the L-shape extending and clamped between the bearing portion and base portion. The soft tissue attachment portion has a portion extending proximally from the mounting flange portion. The soft tissue attachment element mounting portion is captured between the head bearing portion and base portion preferably by clamping or being permanently attached to one of the base or bearing portions during manufacture. | 03-03-2011 |
20110015675 | SUTURE ANCHOR IMPLANTATION INSTRUMENTATION SYSTEM - A system for implanting an anchor into bone, the system comprising a curved cannulated guide for percautaneous insertion, having a proximal end and a distal end; a flexible drill insertable through the curved guide from the proximal end to the distal end, the flexible drill having a shaft having a flexible portion; and a flexible inserter for inserting a suture anchor into a bore at the anatomical site formed by the flexible drill, the flexible inserter having a shaft having a flexible portion, wherein the flexible portions of both the flexible drill and flexible inserter include a series of discrete, interlocking segments. | 01-20-2011 |
20110015674 | Suture anchor implantation instrumentation system - An apparatus for inserting a suture anchor into an internal anatomical site through a cannula, or percutaneously, has a curved hollow guide for insertion into the cannula and/or tissue. The guide has a proximal end and a distal end. The distal end has a “parabolic ” shape for engaging the intended anatomical site such as a glenoid. A flexible obturator is insertable through the curved guide from the proximal end to the distal end to facilitate insertion of the guide through the cannula. A flexible drill is insertable through the curved guide from the proximal to the distal end once the guide is in place. A flexible inserter is provided for inserting a suture anchor into a bore at the anatomical site formed by the flexible drill. | 01-20-2011 |
20110014081 | LASER-PRODUCED POROUS STRUCTURE - The present invention disclosed a method of producing a three-dimensional porous tissue in-growth structure. The method includes the steps of depositing a first layer of metal powder and scanning the first layer of metal powder with a laser beam to form a portion of a plurality of predetermined unit cells. Depositing at least one additional layer of metal powder onto a previous layer and repeating the step of scanning a laser beam for at least one of the additional layers in order to continuing forming the predetermined unit cells. The method further includes continuing the depositing and scanning steps to form a medical implant. | 01-20-2011 |
20110004318 | METHOD AND APPARATUS FOR HIP FEMORAL RESURFACING TOOLING - Tools and methods for implanting hip resurfacing femoral prostheses along a path defined by the axis of a shaped femoral head surface are described. The prostheses are stemless partial ball components having an outer surface shaped to conform to an acetabular socket and may be a two part design having a mating sleeve component with an internal bore adapted to receive the shaped femoral head. The tools and methods are capable of accurately implanting both one and two piece ball components and sleeves without requiring the prosthesis to have a central stem or the preparation of a stem cavity in the femoral head and neck. | 01-06-2011 |
20100318090 | LINKED TIBIAL RESECTION GUIDE - An improved resection guide and method using same are disclosed. The guide is preferably utilized in resecting the tibia during either a single or double unicondylar type procedure. Preferably, the guide allows for linked resection of the tibia while also being capable of conforming to many different patient sizes. This may also allow for a more precise resection to be accomplished. | 12-16-2010 |
20100312348 | ORTHOPEDIC PAEK-ON-POLYMER BEARINGS - An orthopedic prosthetic joint comprising a joint couple having a first bearing surface made of a poly aryl ether ketone (PAEK) and a second joint component having a second bearing made of a polymer that is softer than the PAEK such as UHMWPE the first and second bearing surfaces in sliding engagement with one another. | 12-09-2010 |
20100297462 | PREPARATION OF FORMED ORTHOPEDIC ARTICLES - In one embodiment, the present invention may be a method of forming a porous and/or dense article from metal powder ( | 11-25-2010 |
20100291286 | LASER-PRODUCED POROUS SURFACE - A method of fabricating a porous or partially porous three-dimensional metal article for use as a tissue ingrowth surface on a prosthesis. The porous article is formed using direct laser remelting in a cross section of a layer of metallic powder on a build platform without fusing thereto. The power, speed, spot size and beam overlap of the scanning laser is coordinated so that a predetermined porosity of the metallic powder can be achieved. Laser factors also vary depending from the thickness of the powder layer, type of metallic powder and size and size distribution of the powder particles. Successive depositing and remelting of individual layers are repeated until the article is fully formed by a layer-by-layer fashion. In an additional embodiment, a first layer of metallic powder may be deposited on a solid base or core and fused thereto. | 11-18-2010 |
20100268280 | DEVICE FOR SECURING SPINAL RODS - A device is disclosed for securing a spinal rod to the spine which includes a head portion configured to receive a spinal rod, a locking cap configured to engage the head portion and the spinal rod upon rotation of the locking cap relative to the head portion to secure the position of the head portion relative to the spinal rod, and a fastener portion depending from the head portion and configured to engage the spine. The locking cap has discontinuous opposed engagement flanges that are received within opposed engagement slots of the head portion when the locking cap is rotated into a locked position. | 10-21-2010 |
20100266780 | MULTI-STATION ROTATION SYSTEM FOR USE IN SPRAY OPERATIONS - A system and method for use in applying a coating of a desired material onto one or more medical implant components. The system may include one or more thermal sprayers and a rotatable holding fixture having a plurality of mounting stations each operable to hold at least one medical implant component. The fixture may be operable to rotate about a central axis and each mounting station may be operable to rotate about a respective mounting station axis. The fixture may be arranged adjacent to one or more thermal sprayers so that during operation one or more desired materials may be sprayed by the one or more thermal sprayers upon an outer surface of each of the medical implant components while the fixture rotates about the central axis and while simultaneously therewith each of mounting stations having a respective medical implant component rotates about the respective mounting station axis. | 10-21-2010 |
20100262146 | Disposable bone cutting instrument - A helical reamer for reaming a bone cavity has a longitudinally extending support shaft having a first driven end and a second end having a tip for insertion into the bone cavity. The research for a multiplicity of stamped flat reamer plates each having a plurality of cutting flutes formed on an external surface thereof and a central internal opening to receive the support shaft. The internal opening includes a coupling element in the form of a key and keyway rotationally coupling each reamer plate to the support shaft. The key and keyway allowing each reamer plate to be slightly rotated with respect to the flutes of an adjacent reamer plate. The coupling elements for rotationally coupling the plates to the drive shaft can be mating flattened areas on the internal surface of the stamping and the external surface of the drive shaft. A broach of stamped plates is also shown. | 10-14-2010 |
20100249835 | MEDICAL DEVICE FOR REPAIR OF TISSUE AND METHOD FOR IMPLANTATION AND FIXATION - The present invention relates to medical devices for repairing tissue and more specifically to devices which facilitate tissue regeneration and to surgical methods for the implantation and fixation of such devices. In one embodiment, the medical device is an elongate conduit that includes a longitudinal bore extending therethrough to facilitate the transfer of blood from a vascular region of tissue to a tear or damaged area located in an avascular and/or semi-vascular region of tissue. A filament and/or filaments are attached to the conduit and are positioned to secure the conduit and fixate the adjacent tear walls in mutual engagement. In another embodiment, a series of conduits are connected via a filament and/or filaments to facilitate the implantation of multiple conduits. | 09-30-2010 |
20100241121 | FLEXIBLE INTRAMEDULLARY ROD - An elongated rod for insertion into a bowed canal of a bone such as a femoral medulla of a femur bone, wherein the canal is bowed in one plane. The rod has a longitudinal axis disposed on a first plane and one or more cutouts formed in at least a portion of a length of the rod and on opposite sides of the first plane. The rod is flexible along a second plane which is co-planar with the bowed canal plane and which is disposed on the longitudinal axis and perpendicular to the first plane. | 09-23-2010 |
20100228259 | ACETABULAR SHELL REMOVAL INSTRUMENT - An acetabular shell or cup removal instrument is disclosed. The instrument includes a first end capable of being received within an acetabular cup and a cutting element pivotally attached. Cutting motion is provided to the instrument by a powered handpiece, so that the cutting element is capable of cutting a bone surface adjacent to an outer surface of the acetabular cup when the first end is within the acetabular cup. | 09-09-2010 |
20100222782 | Spot facing trochlear groove - The present invention relates to systems and methods for preparing the trochlear groove of a patient's femur to receive a prosthesis thereon. In the system, a combination drill-and-alignment guide includes at least a proximal and intermediate section, and preferably also includes a distal section. Guide holes for receiving guide pins therein are located in the proximal and distal sections of the guide. After the guide is positioned using at least one of several visual and/or tactile references in the system, the guides pins are placed through the guide holes of the guide and into bone. The guide may then be removed and replaced by cannulated reamers that are rotated and used to resect a predetermined amount of bone around the guide pins. A prosthesis having at least a portion of an outer surface that substantially matches the trochlear groove of the patient in a pre-degenerated state is then implanted on the resected bone. | 09-02-2010 |
20100222781 | Spot facing trochlear groove - The present invention relates to systems and methods for preparing the trochlear groove of a patient's femur to receive a prosthesis thereon. In the system, a combination drill-and-alignment guide includes at least a proximal and intermediate section, and preferably also includes a distal section. Guide holes for receiving guide pins therein are located in the proximal and distal sections of the guide. After the guide is positioned using at least one of several visual and/or tactile references in the system, the guides pins are placed through the guide holes of the guide and into bone. The guide may then be removed and replaced by cannulated reamers that are rotated and used to resect a predetermined amount of bone around the guide pins. A prosthesis having at least a portion of an outer surface that substantially matches the trochlear groove of the patient in a pre-degenerated state is then implanted on the resected bone. | 09-02-2010 |
20100197881 | SEQUENTIALLY CROSS-LINKED POLYETHYLENE - A method of producing an improved polyethylene, especially an ultra-high molecular weight polyethylene utilizes a sequential irradiation and annealing process to form a highly cross-linked polyethylene material. The use of sequential irradiation followed by sequential annealing after each irradiation allows each dose of irradiation in the series of doses to be relatively low while achieving a total dose which is sufficiently high to cross-link the material. The process may either be applied to a preformed material such as a rod or bar or sheet made from polyethylene resin or may be applied to a finished polyethylene part. If applied to a finished polyethylene part, the irradiation and annealing must be accomplished with the polyethylene material not in contact with oxygen at a concentration greater than 1% oxygen volume by volume. When applied to a preform, such as a rod, the annealing of the bulk polymer part of the rod from which the finished part is made must take place on the rod before the implant is machined therefrom and exposed to oxygen. | 08-05-2010 |
20100168869 | Tissue integration implant - The present invention relates to a tissue defect repair implant including a porous material, wherein the material is expandable or compressible. The implant may be a scaffold, and may also be formed of a material such as, for example, collagen or demineralized bone matrix. Another aspect of the invention may be a method for the repair of a tissue defect in a patient in need thereof, including implanting an implant between two adjacent tissues, wherein the implant may include a porous material which is expandable or compressible. The two tissues may be soft tissue and hard tissue, and alternatively, the two tissues may be soft tissue, and may further be the same or different soft tissues. | 07-01-2010 |
20100168856 | Multiple piece tissue void filler - A method for the repair of a cartilage defect in a patient in need thereof, including implanting an implant into the cartilage defect, wherein the implant may comprise at least a first material, wherein the first material may be porous and may be a scaffold that is expandable or compressible. The invention also includes an implant for the repair of a cartilage defect in a patient in need thereof, the implant may include at least a first material and a second material, wherein the first material may be porous and may be a scaffold that is expandable or compressible, and wherein the first material may surround the second material. | 07-01-2010 |
20100168747 | Method and apparatus for removal of tissue - A surgical instrument includes a deflectable cutting element extending from the distal end of the instrument. The deflection of the cutting element is controllable based on a user operating a moveable member of the instrument. The deflectable cutting element is normally disposed within a circumferential region defined by the distal end of the instrument. The moveable member can be moved in relation to the instrument to deflect the deflectable cutting element, such that the cutting element is at least partially outside of the circumferential region. The extent that the cutting element is outside of the circumferential region is a function of the position to which the moveable member is moved in relation to the instrument. The instrument further includes direct imaging of the distal end, such that the deflection of the cutting element for selective removal of bone tissue at the distal end of the instrument can be controlled in real-time. | 07-01-2010 |
20100166822 | Adhesive cartilage implant - A method of producing a cartilage implant which may include coating a substrate with a thermo-sensitive polymer, seeding the polymer with a cell suspension comprising cells that may differentiate into chrondocyte-like cells, wherein the seeding may be conducted at a first temperature, culturing the cell suspension at an increased temperature, whereby cells in the suspension may adhere to the polymer and differentiate into chrondrocyte-like cells, which may form a cartilagenous implant, and decreasing the temperature of the polymer which may allow detachment of the implant from the polymer. The present invention may also include an implant based on this method. The invention may further include a cartilage implant for use in a patient in need thereof, which may include a random three-dimensional configuration of differentiated cells, which may have a natural adhesion surface on at least a portion of the outer surface of the three-dimensional configuration. | 07-01-2010 |
20100160924 | Drill guide with angle verification - A method and instrument is used for inserting a bone screw into a hole in a bone plate and into bone at a maximum angulation of a bone screw central longitudinal axis with respect to a central axis of the hole. The maximum angulation is that which places the head of the bone screw at or below an outwardly facing surface of the bone plate. The instrument has a distal end including a gauge element, spaced proximally from an end surface of the distal end when in contact with a counterbore surrounding the plate hole. The space is less than or equal to a distance from the counterbore surface to the outwardly facing surface of the bone plate. The instrument is tilted with respect to a central axis of the bone plate hole to an angle wherein the gauge element remains at or below the outwardly facing surface of the bone plate adjacent the counterbore. A hole is drilled in the bone through a guide bore in the instrument. | 06-24-2010 |
20100160919 | FEMORAL COMPONENT AND INSTRUMENTATION - An instrument system for setting the internal-external rotation of a prosthetic femoral component with respect to a proximal tibia has a bone resection instrument having a planar surface for engaging a planar surface of a resected distal femur. The bone resection instrument system has a cutting guide for guiding a tool for resecting a posterior surface of the distal femur and forming a cylindrical surface on the posterior condyle intersecting the planar surface. The cylindrical surface defined by an axis extending in a direction generally perpendicular to the resected planar surface. The system includes a trial component having a planar surface for engaging the planar surface of the resected distal femur and having posterior condyles having a cylindrical anteriorly facing surface engagable with the resected cylindrical surface on the posterior condyle. | 06-24-2010 |
20100160915 | MIS PATELLAR PREPARATION - Instruments and a method for preparing the articular surface of the patella to receive a patellar implant are utilized without everting the patella. A medial or lateral parapatellar incision and an anterior midline incision are made adjacent the patella. The patella is clamped with a patella clamp, a hole is drilled from the anterior surface of the patella. A reamer is inserted through the medial or lateral parapatellar incision and is then attached to the end of a drive shaft that extends outwardly beyond the articular surface of the patella. The posterior facing cutting surface of the reamer device is then placed in contact with the articular surface. The drive shaft is then rotated and moved anteriorly causing the cutting surface of the reamer device to remove a desired amount of patellar cartilage and bone to accommodate a patellar component. The patellar component is secured into place by aligning a central peg protruding from the top surface of the patellar component with the previously drilled hole in the patellar remnant. | 06-24-2010 |
20100160914 | SINGLE USE RESECTION GUIDE - Single use or disposable cutting blocks and methods for utilizing same are disclosed. The blocks are preferably constructed of polymer and/or other suitable low cost and light weight materials. The blocks may be adapted for use with low friction cutting instruments, as well as other such cutting instruments. Several differently sized and configured blocks may be utilized to perform a single surgical procedure. In addition, kits housing one or more such blocks, with or without other instruments are possible. | 06-24-2010 |
20100152733 | UNIVERSAL COUPLER - A universal coupler for coupling multiple orthopedic instruments is disclosed. The universal coupler includes a body having a boss and an internal bore, a locking shaft having a first portion and a second portion, a trigger including a trigger bore, and a connection portion. The trigger is operable between a first position and a second position, where in the first position the first portion and boss are misaligned and in the second position the first portion and the boss are aligned. | 06-17-2010 |
20100150888 | CELLS FOR JOINT FLUID - Disclosed are methods of enhancing recovery from joint surgery, comprising administering to the joint during surgery a composition comprising stem or progenitor cells in an amount effective to enhance recovery, and a pharmaceutically acceptable carrier. | 06-17-2010 |
20100137995 | ACETABULAR SHELL - An acetabular cup assembly for a prosthetic hip joint is disclosed. This assembly includes an outer shell having at least one shell extension, an adaptor having at least one adaptor extension, and an insert. The inclusion of an extension on the outer shell and an extension on the adaptor allows for easier manipulation and implantation of the assembly. | 06-03-2010 |
20100125337 | Trial implant and method of use - Disclosed is a trial implant having a body and a tab. The body may include a recess and may be sized to closely approximate a permanent implant. The tab may be more durable than the body, and may be disposed within the body and wholly contained within the recess. Also disclosed is a method of performing a trialing procedure including providing a trial implant as described, providing a tool to attach to the tab, inserting the implant onto a resected joint, evaluating and extracting the implant. The same procedure may then be performed with a second implant. The method may further include a tool having an attachment portion that is substantially or wholly contained within the recess. A kit is disclosed including a plurality of trial implants of incrementally different shapes and sizes. The kit may further include a tool. Also disclosed is a method of making the described implant. | 05-20-2010 |
20100121458 | FEMORAL HEAD RESURFACING - A hip resurfacing femoral prosthesis has a partial ball component having an outer surface shaped to conform to an acetabular socket and has a mating sleeve component with an internal bore adapted to receive a femoral head. The head has been shaped and dimensioned to engage the bore and is retained by bone ingrowth, an interference fit or by bone cement. The ball component and sleeve axes may be offset to reposition the outer surface. | 05-13-2010 |
20100121389 | Method of preparing a femur for implantation of a femoral implant - A method of preparing a distal femur for implantation of a femoral implant is described. The distal femur is resected to accommodate placement of a trial implant thereon. The trial implant is then placed against the resected distal femur to locate an optimal position for the femoral implant. The trial implant comprises one or more apertures through which holes are drilled in the distal femur and into which trial pegs are inserted into the distal femur to secure the trial implant to the distal femur. The surgeon then evaluates whether the holes in the femur are located appropriately to securely implant the femoral implant onto the femur. The trial implant is ultimately removed in favor of a final implant. | 05-13-2010 |
20100114102 | FEMORAL CUTTING BLOCK - A method of resecting a distal femur is disclosed. The method includes attaching a first block to the distal femur, the first block having a first surface providing a guiding surface for making an anterior chamfer cut on the femur, and a second surface providing a guiding surface for making a posterior chamfer cut on the femur, and making anterior and posterior chamfer cuts on the distal femur. The method further includes attaching a second block to the first block, the second block having a first surface providing a guiding surface for making an anterior cut on the femur, and a second surface providing a guiding surface for making a posterior cut on the femur, and making anterior and posterior cuts on the distal femur. | 05-06-2010 |
20100114101 | METHOD OF RESECTING A FEMORAL HEAD FOR IMPLANTATION OF A FEMORAL NECK FIXATION PROSTHESIS - A femoral neck fixation prosthesis and method of using same which reduces bone loss and the avoids the other shortcomings of the prior art by allowing the fixation of a stable femoral head replacement while reducing the amount of the femur which must be reamed for the insertion of the prosthesis. The preferred embodiment provides that the femoral head is attached to a fixation prosthesis, which extends coaxially through the canal of the femoral neck, into the femur, and is then attached to the opposite lateral wall of the femur. In this manner, the prosthesis serves to imitate the original structure of the femoral neck. No other support members, either crosspins or arms extending into the length of the femur, are required. | 05-06-2010 |
20100087824 | High tibial osteotomy instrumentation - An apparatus to aid in cutting a bone during a bone osteotomy procedure, including a frame having a first bushing, a first fixation pin, and an adjustment screw. The apparatus further includes a side plate attached to the frame and moveable with respect thereto, the side plate having a second bushing and a second fixation pin. In addition, the apparatus includes a drill block assembly releasably attached to the side plate and moveable with respect thereto, the drill block having a third bushing and a hinge pin. | 04-08-2010 |
20100057089 | CUTTING BLOCK FOR BONE RESECTION - A cutting block having a base, and a top connected to the base via four walls is disclosed. Each wall has an outwardly facing surface to guide a cutting tool. Each wall also has an attachment hole where a tracker may be attached. The cutting block is floated on the bone using the navigation system to position it at correct locations for the bone resection. After correctly locating the cutting block for each required cut, cutting block is fixed to the bone using pins and the bone resected. Same cutting block is suitable for resection of bone for installation of any size prosthetic device. For certain resections, the rotation angle may be mechanically set and need not be navigated. | 03-04-2010 |
20100049220 | INSERTION SYSTEM FOR IMPLANTING A MEDICAL DEVICE AND SURGICAL METHODS - The present invention relates to an insertion system for medical devices and to surgical methods for the implantation of the same. In one embodiment, the implantation system includes a guide wire and an insertion tool. The insertion tool includes a longitudinal bore extending therethrough for receipt of the guide wire. A portion of the longitudinal bore of the insertion tool mates with the outer surface of the guide wire to rotationally lock the insertion tool and the guide wire. Additionally, the medical device to be inserted includes a longitudinal bore for receipt of the guide wire. Similarly, at least a portion of the longitudinal bore of the medical device may also mate with the outer surface of the guide wire to rotationally lock the medical device and the guide wire. The rotational locks allow for rotation of the insertion tool to result in corresponding rotation of the medical device via rotation of the guide wire. In another embodiment, the insertion system further includes a needle having an eyelet for receiving and positioning filaments attached to the medical device. | 02-25-2010 |
20100036491 | Polyethylene cross-linked with an anthocyanin - A method for manufacturing of ultrahigh molecular weight polyethylene (UHMWPE) for implants, where the implants have been machined out of UHMWPE blocks or extruded rods, has anthocyanin dispersely imbedded in the polyethylene. The implant is then exposed to γ ray or electron beam irradiation in an amount of at least 2.5 Mrad followed by a heat treatment to prevent the implant from becoming brittle in the long term as well as to improve strength and wear. The method includes mixing a powder or granulate resin of UHMWPE with an aqueous liquid that contains anthocyanin in a predetermined amount. The water is then evaporated in order to deposit the anthocyanin in a predetermined concentration on the polyethylene particles. The doped UHMWPE particles are compressed into blocks at temperatures in a range of approximately 135° C.-250° C. and pressures in a range of approximately 2-70 MPa. Medical implants are made from the blocks. | 02-11-2010 |
20100036389 | MEDICAL DEVICE FOR REPAIR OF TISSUE AND METHOD FOR IMPLANTATION AND FIXATION - The present invention relates to medical devices for repairing tissue and more specifically to devices which facilitate tissue regeneration and to surgical methods for the implantation and fixation of such devices. In one embodiment, the medical device is an elongate conduit that includes a longitudinal bore extending therethrough to facilitate the transfer of blood from a vascular region of tissue to a tear or damaged area located in an avascular and/or semi-vascular region of tissue. A filament and/or filaments are attached to the conduit and are positioned to secure the conduit and fixate the adjacent tear walls in mutual engagement. In another embodiment, a series of conduits are connected via a filament and/or filaments to facilitate the implantation of multiple conduits. | 02-11-2010 |
20100023131 | Femoral head prosthesis - An implant is provided for replacing the proximal portion of a femur having a substantially intact natural femoral neck and a lateral side opposite the femoral neck, with a bore extending from the femoral neck through a lateral side of the femur. The implant comprises a sleeve having a flange for engaging a proximally facing resected surface of the neck surrounding the bore in the femur and having a bore with an inwardly tapered conical portion. A shaft member having a longitudinal axis, a distal end, and a proximal end is placed in the bore through the femur. The shaft member has an intermediate conically tapered male portion for coupling to the conically tapered bore of the sleeve and a proximal end having a conically tapered portion. A head member having a distal end and a proximal substantially-spherical portion and a tapered recess is configured for positioning in a natural or prosthetic hip socket. | 01-28-2010 |
20100010638 | Laser-Produced Porous Surface - An implant having a porous tissue ingrowth structure and a bearing support structure is disclosed. The implant includes a metal insert having a bone ingrowth structure, an intermediate structure and a bearing support structure. A bearing surface is formed from a polymer material and attached to the bearing support structure. The intermediate structure has a porosity sufficient to inhibit the polymer material from translating through the bearing support structure to the bone ingrowth structure. | 01-14-2010 |
20100004702 | Tibial Augmentation Guide - A guide for use in making tibial augmentation cuts is disclosed. The guide is preferably for use subsequent to an initial cut being made. A method of utilizing the guide, as well as making the initial cut is also disclosed. | 01-07-2010 |
20100004658 | Methods and tools for femoral resection in knee surgery - Tools for resecting the femur include an anchoring device, a three-way alignment guide and a six way alignment guide attachable to the anchoring device, a resection guide attachable to the three-way alignment guide and equipped with couplings for trackers, an A-P sizer, a femoral sizing block bushing attachable to the six-way alignment guide, a 4-in-i femoral cutting block, a 5-in-i positional alignment guide attachable to the six-way alignment guide, a pair of diodes, and a 5-in-one cutting block. Methods of utilizing the apparatus are also disclosed. | 01-07-2010 |
20090324442 | Method for fabricating a biocompatible material having a high carbide phase and such material - A method of fabricating a material having a high concentration of a carbide constituent. The method may comprise adding a carbide source to a biocompatible material in which a weight of the carbide source is at least approximately 10% of the total weight, heating the carbide source and the biocompatible material to a predetermined temperature to melt the biocompatible material and allow the carbide source to go into solution to form a molten homogeneous solution, and impinging the molten homogeneous solution with a high pressure fluid to form spray atomized powder having carbide particles. The size of a particle of carbide in the atomized powder may be approximately 900 nanometers or less. The biocompatible material may be cobalt chrome, the carbide source may be graphite, and the fluid may be a gas or a liquid. | 12-31-2009 |
20090286008 | Laser-produced porous surface - A method of fabricating a porous or partially porous three-dimensional metal article for use as a tissue ingrowth surface on a prosthesis. The porous article is formed using direct laser remelting in a cross section of a layer of metallic powder on a build platform without fusing thereto. The power, speed, spot size and beam overlap of the scanning laser is coordinated so that a predetermined porosity of the metallic powder can be achieved. Laser factors also vary depending from the thickness of the powder layer, type of metallic powder and size and size distribution of the powder particles. Successive depositing and remelting of individual layers are repeated until the article is fully formed by a layer-by-layer fashion. In an additional embodiment, a first layer of metallic powder may be deposited on a solid base or core and fused thereto. | 11-19-2009 |
20090281546 | MODULAR CAPTURE WITH MAGNETIC ATTACHMENT - A detachable cutting tool capture for a cutting block provides a guide surface to convert an open surface block into a slotted block for plying a surgical cutting tool along the surfaces of the guide during a surgical procedure such as a bone resection with a blade. A magnetized catch provides a convenient device for securing the capture and the block together. A triangular cam on the detachable capture in conjunction with a “v” groove in a magnetized lever of the catch permits a pin of the catch to be selectively retracted from or extended into an aperture of the block when the lever is rotated so that when the pin extends, it serves to secure the combined apparatus for cutting. Mating surfaces of the block and capture provide additional structure for supporting the capture with the block to secure them from relative movement. | 11-12-2009 |
20090270874 | Modular hip inserter/positioner - A modular hip body/stem inserter comprises a stem inserter and a holder. A proximal body portion of an implant is loaded, or mounted, onto the holder. A distal stem portion of the implant is affixed onto the stem inserter. The modular hip body/stem inserter maintains the proximal body portion and distal stem portion a short distance apart. The stem inserter can be adjusted to control the version of the distal stem, while the holder can be independently adjusted to control the version of the proximal body. Once the version is adjusted to determine a final seating position, the stem inserter portion is removed and the holder is then used to impact the proximal body and distal stem together, thereby locking the implant components together through a taper locking mechanism. | 10-29-2009 |
20090256285 | Method of producing a ceramic component - A method of producing a ceramic component includes dispersing an alpha-alumina nanopowder whose diameter is above 100 nm in water, using 2-phosphonobutane-1,2,4-tricarboxylic acid (PBTC) or 4,5-Dihydroxy-m-benzenedisulfonic Acid, Disodium Salt (Tiron™) as dispersant. The pH is shifted towards the isoelectric point (IEP) by adding a mixture of acetic anhydride and ethylene glycol or polyethylene glycol, drying in a controlled atmosphere (humidity, temperature) and post compacting using cold isostatic pressing and sintering the three-dimensional structure thus formed. | 10-15-2009 |
20090216332 | EXPANDABLE REVERSE SHOULDER TRIAL - An expandable shoulder trial for a reverse shoulder system is described. The trial includes a rotatably adjustable insert housed within a humeral cup. The insert has a proximal end and a distal end, the proximal end having a concave recess therein adapted to receive a glenosphere prosthesis. The distal end of the insert includes a shaft, the shaft having a helical groove disposed on at least a portion thereof. A distal end of the humeral cup is inserted in a humeral stem. The humeral cup has a proximal end including a recess therein, the recess defined by a circular wall. A guide pin protrudes from the circular wall and is adapted to engage the helical groove of the shaft of the insert. The proximal end of the insert may rotate along an axis toward the proximal end of the humeral cup and along the same axis away from the proximal end of the humeral cup. | 08-27-2009 |
20090192624 | MODULAR HUMERAL HEAD - A modular humeral head system includes a housing having an outer surface and an inner surface. A hemispherical socket formed on one end of the inner surface and threads formed on the other end of the inner surface. A cap is attached at the threaded end of the housing. The cap has one or more threaded holes that run from the top surface to bottom surface of the cap. A screw may be inserted in each hole. The modular humeral head system also includes an intermediate piece having a hemispherical head at one end of a tapered shaft. The tapered shaft is inserted in a humeral stem. The hemispherical head and the hemispherical socket form a ball and socket coupling. A trial head may be impacted on the housing. The trial head has one or more holes that are aligned with the screws inserted in the cap. | 07-30-2009 |
20090192623 | MODULAR HUMERAL HEAD - A modular humeral head system includes a housing having an outer surface and an inner surface. A hemispherical socket formed on one end of the inner surface and threads formed on the other end of the inner surface. A cap is attached at the threaded end of the housing. The cap has one or more threaded holes that run from the top surface to bottom surface of the cap. A screw may be inserted in each hole. The modular humeral head system also includes an intermediate piece having a hemispherical head at one end of a tapered shaft. The tapered shaft is inserted in a humeral stem. The hemispherical head and the hemispherical socket form a ball and socket coupling. A trial head may be impacted on the housing. The trial head has one or more holes that are aligned with the screws inserted in the cap. | 07-30-2009 |
20090162273 | Chromium oxide powder having a reduced level of hexavalent chromium and a method of making the powder - A refined chromium oxide powder having a reduced level of hexavalent chromium. The refined powder may be produced by acid and reduction washing or by heat treatment to reduce the hexavalent chromium to a biocompatible level. The powder is then packaged to limit oxidation and absorption of moisture. | 06-25-2009 |
20090143866 | Knee prosthesis with four degrees of freedom - Knee prosthesis for implanting in a knee joint has a femoral component, a tibial component and a hinge connecting the femoral component and the tibial component. The femoral component rotates around the transverse axis passing through center of the hinge and the center of rotation of the femoral component moves substantially along proximal-distal axis upon flexion of the knee joint. | 06-04-2009 |
20090105439 | Sequentially cross-linked polyethylene - A method of producing an improved polyethylene, especially an ultra-high molecular weight polyethylene utilizes a sequential irradiation and annealing process to form a highly cross-linked polyethylene material. The use of sequential irradiation followed by sequential annealing after each irradiation allows each dose of irradiation in the series of doses to be relatively low while achieving a total dose which is sufficiently high to cross-link the material. The process may either be applied to a preformed material such as a rod or bar or sheet made from polyethylene resin or may be applied to a finished polyethylene part. If applied to a finished polyethylene part, the irradiation and annealing must be accomplished with the polyethylene material not in contact with oxygen at a concentration greater than 1% oxygen volume by volume. When applied to a preform, such as a rod, the annealing of the bulk polymer part of the rod from which the finished part is made must take place on the rod before the implant is machined therefrom and exposed to oxygen. | 04-23-2009 |
20090099662 | Expandable reverse shoulder trial - An expandable shoulder trial for a reverse shoulder system is described. The trial includes a rotatably adjustable insert housed within a humeral cup. The insert has a proximal end and a distal end, the proximal end having a concave recess therein adapted to receive a glenosphere prosthesis. The distal end of the insert includes a shaft, the shaft having a helical groove disposed on at least a portion thereof. A distal end of the humeral cup is inserted in a humeral stem. The humeral cup has a proximal end including a recess therein, the recess defined by a circular wall. A guide pin protrudes from the circular wall and is adapted to engage the helical groove of the shaft of the insert. The proximal end of the insert may rotate along an axis toward the proximal end of the humeral cup and along the same axis away from the proximal end of the humeral cup. | 04-16-2009 |
20090088757 | Acetabular reamer - A reamer assembly includes a tool driver and a tool. Tool driver comprises a shaft. The tool receiving end of the shaft has a flange. Formed in the flange are four L-shaped bayonet catches which receive the tool. The tool has a body having slots. A cutter can slidably fit in the slots. When installed in the slots, the cutters project slightly above the body. The projecting portions of the cutters form the cutting edges for shaving or cutting tissue. The reamer is formed by attaching a tool to the tool driver by lowering it in the L-shaped bayonet catches. The reamer can be coupled to a drive means such as a hand drill and inserted in a body cavity. Operating the reamer against body tissue results in shaving of body tissue. | 04-02-2009 |
20090069899 | Antibiotic bone cement spacer - A temporary femoral implant system has a porous mold and a femoral component. The system fits at least partially in a femoral cavity. The mold has a wall with an interior surface and an exterior surface forming an interior space for receiving an antibiotic bone cement. The mold allows the antibiotic to diffuse through the wall to the exterior surface. The femoral component has a stem portion received within the mold. A method of using the implant system includes providing an implant system comprising a mold and a femoral component, inserting the mold into the femoral cavity with the exterior surface facing the femoral cavity, inserting the stem portion of a femoral component into the interior space of the mold and filling the interior space of the mold with an antibiotic bone cement. | 03-12-2009 |
20090048682 | Disposable neck trial adapter - The system to implant a prosthetic device in a long bone such as a femur or a humerus includes a stem implant having a recess. The system of present invention also includes a broach to prepare the long bone that may receive the stem implant. The broach also has a recess that is similar to the recess in the stem implant. An adapter of a generally rectangular shape similar to the recess fits snugly in the recess in the stem implant. A trial neck that fits snugly in the recess formed in the adapter is also provided. A trial head may be assembled on the trial neck. A neck similar to the trial neck can be inserted in place of trial neck. A head may be assembled on the proximal end of the neck. A system for implantation of a prosthetic device in a long bone may be made available as a kit that includes at least two stems having the adapter inserted in each of the stem, at least two trial necks, at least two trial heads, at least two necks and at least two heads. | 02-19-2009 |
20090018561 | Medical device for repair of tissue and method for implantation and fixation - The present invention relates to medical devices for repairing tissue and more specifically to devices which facilitate tissue regeneration and to surgical methods for the implantation and fixation of such devices. In one embodiment, the medical device is an elongate conduit that includes a longitudinal bore extending therethrough to facilitate the transfer of blood from a vascular region of tissue to a tear or damaged area located in an avascular and/or semi-vascular region of tissue. A filament and/or filaments are attached to the conduit and are positioned to secure the conduit and fixate the adjacent tear walls in mutual engagement. In another embodiment, a series of conduits are connected via a filament and/or filaments to facilitate the implantation of multiple conduits. | 01-15-2009 |
20090012521 | Augmentation delivery device - The tissue augment sheet delivery system includes a tube funnel adapter and a tissue augment sheet delivery instrument. The tube funnel adapter includes a oval/conical shaped funnel. The tissue augment sheet delivery instrument includes a handle. A cylindrical tube is connected to the handle. A wire is inserted in the tube. The wire is formed in a large loop with small loops formed in the large loop. A tissue augment sheet is attached to one side of the large loop using a monofilament. In use, the tube funnel adapter is inserted in body. The tissue augment sheet is placed in mouth of the oval/conical shaped funnel and gently moved down. While moving down, the tissue augment sheet conforms to the internal diameter of the tube funnel adapter. The handle is withdrawn to remove the large loop from the body leaving the tissue augment sheet in body. | 01-08-2009 |
20080306606 | Acetabular shell - An acetabular cup assembly for a prosthetic hip joint is disclosed. This assembly includes an outer shell having at least one shell extension, an adaptor having at least one adaptor extension, and an insert. The inclusion of an extension on the outer shell and an extension on the adaptor allows for easier manipulation and implantation of the assembly. | 12-11-2008 |
20080294169 | Bone-reaming system - A bone-reaming system for use in bone cavities which allows for a less invasive and more precise surgical procedure is disclosed. An apparatus according to such a system may include a housing, a motor disposed within the housing, and a cutter attached to the motor and extendable through the aperture, wherein the housing is capable of articulating with respect to a bone cavity so as to allow the cutter to cut at least a portion of the bone cavity. A routing guide is used in conjunction with the apparatus to provide a template through which to cut preselected portions of a bone cavity. Also disclosed is a method for using such a bone-reaming system. | 11-27-2008 |
20080287958 | Flexible intramedullary rod - An elongated rod for insertion into a bowed canal of a bone such as a femoral medulla of a femur bone, wherein the canal is bowed in one plane. The rod has a longitudinal axis disposed on a first plane and one or more cutouts formed in at least a portion of a length of the rod and on opposite sides of the first plane. The rod is flexible along a second plane which is co-planar with the bowed canal plane and which is disposed on the longitudinal axis and perpendicular to the first plane. | 11-20-2008 |
20080262626 | Femoral sleeve for hip resurfacing - A hip resurfacing femoral prosthesis has a sleeve component with an internal bore adapted to receive a femoral head and a partially conical outer surface. The sleeve is for use with a mating partial ball component shaped to conform to an acetabular socket. The sleeve is slotted or segmented to enhance the engagement with the femoral head. The partial ball component may be translated proximally and distally to reposition the outer surface by selecting sleeves with varying geometries. | 10-23-2008 |
20080262500 | Cutting guide with internal distraction - A cutting guide for performing a bone osteotomy procedure is disclosed. The cutting guide includes a first arm having a first cutting guide surface formed therein, a second arm having a second cutting guide surface formed therein pivotably connected to the first arm and a distractor operatively connected to the first arm. The cutting guide is adapted to be affixed to the bone such that the first cutting guide surface is open to the second cutting guide surface. The first arm and second arm are rotatable with respect to each other such that manipulation of the distractor creates a force between the first arm and the second arm causing rotation of the first arm and second arm relative to each other. A method for using the cutting guide in a bone osteotomy procedure is also disclosed. | 10-23-2008 |
20080241570 | Method for fabricating a medical component from a material having a high carbide phase and such medical component - A method of fabricating a medical implant component. The method may comprise producing a substrate from a first material in which the substrate has a bearing portion, and causing particles of a second material to be formed onto at least the bearing portion of the substrate. The second material may be formed from a biocompatible material and a carbide source, in which the carbide source is 6.17% or more of the second material by weight. The particles of the second material may be formed onto at least the bearing portion of the substrate by a predetermined spraying technique, a CVD process, a PVD process, or a carburization process. The biocompatible material may be cobalt chrome and the carbide source may be graphite. | 10-02-2008 |
20080241350 | Method for fabricating a medical component from a material having a high carbide phase - A method of fabricating a medical implant component. The method may comprise producing a substrate from a first material in which the substrate has a bearing portion, and spraying particles of a second material by use of a thermal type spraying process onto at least the bearing portion of the substrate. The second material may be formed from a biocompatible material and a carbide source, in which the carbide source is 6.17% or more of the second material by weight. The biocompatible material may be cobalt chrome and the carbide source may be graphite. The thermal type spraying process may be a plasma spraying process or a high velocity oxygen fuel spraying process. | 10-02-2008 |
20080228191 | Femoral elevator - A bone retractor that may be used as a femoral elevator. The bone retractor includes a clamp for attaching the bone retractor to an operating room bed rail, a post attached to the clamp via a hinged joint, a mount slidably attached to the post and a hook coupled to the mount which in turn is attached to the post. A shaft passes through the interior of the post and attaches to clamp. The clamp has a lower jaw and an upper jaw. An opening is formed in the lower jaw and an end of the shaft is engaged in the opening. The shaft has two sections with a universal joint connecting these two sections. The born retractor is attached to the operating room bed rail by applying clamp to the bed rail. With bone retractor attached to the bed rail, the post is lowered towards the wound. The hook is placed under the bone, and the bone exposed by holding the hook or the post and lifting the bone out of the wound. A knob is tightened to lock the post and consequently the hook in the raised position while the surgeon performs the surgery. When the surgeon is ready, the bone is lowered in the wound by loosening the knob and slowly placing the bone in the desired position in the wound. | 09-18-2008 |
20080208200 | Drilling guide for use in implanting a femoral neck fixation prosthesis - A femoral neck fixation prosthesis and method of using same which reduces bone loss and the avoids the other shortcomings of the prior art by allowing the fixation of a stable femoral head replacement while reducing the amount of the femur which must be reamed for the insertion of the prosthesis. The preferred embodiment provides that the femoral head is attached to a fixation prosthesis, which extends coaxially through the canal of the femoral neck, into the femur, and is then attached to the opposite lateral wall of the femur. In this manner, the prosthesis serves to imitate the original structure of the femoral neck. No other support members, either crosspins or arms extending into the length of the femur, are required. | 08-28-2008 |