| Class / Patent application number | Description | Number of patent applications / Date published |
|---|
| 606089000 | Femoral head | 73 |
| 20080234685 | Patient-Adapted Osteotomy Template for Precise Resection of the Neck of the Femur in a Total Hip Prosthesis Operation - A patient-adapted osteotomy template for precise resection of the femur in a total hip prosthesis operation with the use of a reamer comprises an upper abutment surface for abutment with the femur, a connecting surface fixed to the upper abutment surface and a guide surface, a guide slot provided in the connecting surface and an orientation indicator fixed to or provided in the osteotomy template. The guide surface and slot define the desired cutting plane and provide guidance of the resection instrument for the resection operation when the upper abutment surface is in abutment against the femur and when the osteotomy template is rotated about the drilling axis of the reamer so that the orientation indicator is in a specific position. | 09-25-2008 |
| 20090048603 | HIP STEM CENTRALIZER DATUM GUIDE AND METHOD - A hip stem centralizer datum guide ( | 02-19-2009 |
| 20090149859 | Femoral Guide For Implanting A Femoral Knee Prosthesis - Disclosed is a modular femoral sizing guide which facilitates the selection and rotational orientation of a femoral prosthetic for a resected femur. The femoral sizing guide has a base which is coupled to the resected femur. An extension portion which is configured to have a pair of feet which are coupled to the posterior surface of the resected femur is rotatably coupled to the base portion. A superstructure having a pair of drilling guides and a stylus is slidably coupled to the base. | 06-11-2009 |
| 20090222015 | HIP RESURFACING SURGICAL GUIDE TOOL - Disclosed herein is a tool for guiding a drill hole along a central axis of a femur head and neck for preparation of a femur head that is the subject of a hip resurfacing surgery. In one embodiment, the tool includes a mating region and a guide hole. The mating region is configured to matingly receive a predetermined surface of the femur. The mating region and guide hole are positionally correlated or referenced with each other such that when the mating region matingly receives the predetermined surface of the femur, the guide hole will be generally coaxial with a central axis extending through the femur head and the femur neck. | 09-03-2009 |
| 20090222016 | TOTAL HIP REPLACEMENT SURGICAL GUIDE TOOL - Disclosed herein is a surgical guide tool for use in total hip replacement surgery. The surgical guide tool may include a customized mating region and a resection guide. The customized mating region and the resection guide are referenced to each other such that, when the customized mating region matingly engages a surface area of a proximal femur, the resection guide will be aligned to guide a resectioning of the proximal femur along a preoperatively planned resection plane. | 09-03-2009 |
| 20090254093 | Patient-Specific Alignment Guide - An orthopedic apparatus includes an alignment guide attachable to one of a femoral joint surface of a femur of a patient. The alignment guide has a patient-specific three-dimensional engagement surface, and at least one guiding portion defining a guiding passage. The engagement surface anatomically matches a corresponding portion of the femoral joint surface. | 10-08-2009 |
| 20100036383 | ORTHOPAEDIC SURGICAL INSTRUMENTATION FOR PERFORMING A PATELLOFEMORAL ARTHROPLASTY PROCEDURE - A method and instrumentation for performing a patellofemoral arthroplasty orthopaedic procedure includes coupling an anterior cutting block to a femur of a patient such that the cutting block references local anatomy of the femur. The anterior cutting block is used to perform a number of bone cuts to establish a trochlear cavity in the femur. The trochlear cavity is formed such that a trochlear prosthesis may be inset into the cavity and substantially flush with the surrounding cartilage. A finishing burring guide and burr bit may be used to detail the shape and/or size of the trochlear cavity. Additionally, a trochlear drill guide may be used to facilitate establishing peg holes in the patient's femur to receive corresponding pegs of the trochlear prosthesis. | 02-11-2010 |
| 20100049200 | FEMORAL GUIDE FOR ACL REPAIR HAVING ADJUSTABLE OFFSET - A guide for positioning a femoral tunnel during an ACL repair. The device may include a shaft having a lumen, the lumen defining a longitudinal axis, and a distal offset projection, at least a portion of the distal offset projection extending distally from the elongated shaft, wherein the distal offset projection and the shaft are moveable relative to each other. | 02-25-2010 |
| 20100049201 | FEMORAL GUIDE FOR ACL REPAIR HAVING MULTIPLE LUMEN - A guide for positioning a femoral tunnel during an ACL repair. The device may include a shaft having two or more lumen extending longitudinally therethrough. The device may also include a distal offset projection, at least a portion of the distal offset projection extending distally from the elongated shaft. | 02-25-2010 |
| 20100049202 | FEMORAL GUIDE FOR ACL REPAIR HAVING REDUCED PROFILE FOR LEFT/RIGHT KNEE CONFIGURATIONS - A device for positioning a femoral tunnel during ACL reconstruction, the device comprising: a shaft having a lumen, the lumen defining a longitudinal axis; and a distal offset projection, at least a portion of the distal offset projection extending distally from the elongated shaft; and a single lateral reference member configured to reference a portion of a patient's anatomy, e.g., a PCL or a portion of the femoral notch, the lateral reference member located on one of the left or the right side of the device, wherein, on a second one of the left or the right side of the device, the device defines a void. Two devices may be employed to provide a set. | 02-25-2010 |
| 20100049203 | FEMORAL GUIDE FOR ACL REPAIR HAVING SELECTIVELY DEPLOYABLE FEMORAL SURFACE ENGAGEMENT MEMBER - A guide for positioning a femoral tunnel during an ACL repair. The device may include a shaft having a distal end and a femoral surface engagement member. The femoral surface engagement member may be selectively deployable relative to the distal end of the shaft. The femoral surface engagement member may have a relatively sharp distal end, that is configured to alter, e.g., pierce, a surface of the femur. | 02-25-2010 |
| 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 |
| 20100094301 | DEVICE AND METHOD FOR DISTAL RESECTIONS OF A KNEE PROSTHETIC - A device and method for resecting a distal portion of a femur comprises a distal cutting guide [ | 04-15-2010 |
| 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 |
| 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 |
| 20100145346 | TOTAL HIP REPLACEMENT ARTHROPLASTY SUPPORTING JIG AND ITS SYSTEM - A jig and a system for supporting artificial hip joint with which an artificial shelf can be arranged at an ideal arranging position more easily at reduced facility cost. Since existing arthroscope ( | 06-10-2010 |
| 20100145347 | CENTERING JIG FOR RESURFACING THE HEAD OF THE FEMUR AND METHOD - A jig for resurfacing the head of a femur comprises a centering guide defining a centering axis. It further comprises: a support suitable for fitting on a head of the femur and defining an envelope surface forming a portion of a sphere, the centering guide being fastened to the support with the centering axis aligned on a diameter of the sphere; and at least one abutment arm for coming into abutment against a predefined portion of a neck of the femur, the abutment arm being connected to the support and having a distal end that bears against the corresponding predefined portion when the support is fitted on the head of the femur with the centering axis aligned on the central axis of the neck of the femur or with a small amount of valgus. | 06-10-2010 |
| 20100152741 | UNICOMPARTMENTAL CUSTOMIZED ARTHROPLASTY CUTTING JIGS AND METHODS OF MAKING THE SAME - Disclosed herein are unicompartmental femoral and tibial arthroplasty jigs for respectively assisting in the performance of unicompartmental femoral and tibial arthroplasty procedures on femoral and tibial arthroplasty target regions. The femoral and tibial unicompartmental arthroplasty jigs each include a first side, a second side and a mating surface. Each second side is generally opposite its respective first side. For the femoral jig, the mating surface is in the first side of the femoral jig and configured to matingly receive and contact a generally planar area of an anterior side of a femoral shaft generally proximal of the patellar facet boarder and generally distal an articularis genu. The first side of the femoral jig is configured to be oriented towards the femoral arthroplasty target region surface when the mating surface of the femoral jig matingly receives and contacts the planar area. For the tibial jig, the mating surface of the tibial jig is in the first side and configured to matingly receive and contact a generally planar area of an anterior side of a tibial shaft distal of the tibial plateau edge and generally proximal of the tibial tuberosity. The first side of the tibial jig is configured to be oriented towards the tibial arthroplasty target region surface when the mating surface of the tibial jig matingly receives and contacts the planar area. | 06-17-2010 |
| 20100152742 | HEAD CENTERING JIG FOR FEMORAL RESURFACING - There is described a jig for identifying a point on the femoral head which is in alignment with a central axis of the femoral neck. The jig comprises a first member which defines a plane and has means for at least partially receiving the femoral neck. The jig also comprises a guide member which is mounted apart from the first member and which defines an axis at right angles to the plane defined by the first member. The axis of the guide member intersects the plane at a point which is a predetermined distance away from the means receiving the femoral neck. In addition, the jig comprises an elongate alignment means which is mounted with respect to the first member and which is spaced apart from, but extends parallel to, the axis of the guide member. There is also described a kit for use in the resurfacing of the femoral head. The kit comprises at least one jig as previously described. | 06-17-2010 |
| 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 |
| 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 |
| 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 |
| 20100222783 | ANTERIOR CORTEX REFERENCING EXTRAMEDULLARY FEMORAL CUT GUIDE - An apparatus and method are provided for aligning an extramedullary femoral cut guide by referencing the anterior cortex of a femur. An anterior cortex referencing extramedullary femoral cut guide is provided to guide an osteotomy device to prepare the femur to receive a prosthesis. An alignment gauge is included in the cut guide to determine proper and improper alignment of the cut guide with respect to the anterior cortex of the femur. | 09-02-2010 |
| 20100286700 | PATIENT SPECIFIC ALIGNMENT GUIDE FOR A PROXIMAL FEMUR - An alignment guide for aligning instrumentation along a proximal femur includes a neck portion configured to wrap around a portion of the neck of the femur, a head underside portion configured to abut a disto-lateral portion of the femoral head and a medial head portion configured to overlie a medial portion of the head. Portions of the guide can have an inner surface generally a negative of the femoral bone of a specific patient that the guide overlies; such surfaces can be formed using data obtained from the specific patient. The neck portion can be configured to rotationally stabilize the guide by abutting and generating a first gripping force on the neck. The femoral head portions can be configured to grip the head portion of the femur and can support a bore guide that is configured to guide an instrument to the femur in a specified location and along a given axis. | 11-11-2010 |
| 20100292702 | FEMORAL CONDYLE CUTTING AND SHAPING DEVICE - A femoral condyle cutting and shaping device includes a first bone shaping and cutting tool and at least one assistant shaft which are mounted in a sliding gearbox; at least one driven shaft mounted in a sliding gearbox; a first connecting member and a second connecting member, with one end of the first connecting member joining with one end of the second connecting member so as to form a hinge fitting; at least one other bone shaping and cutting tool mounted on the relevant driven shaft; an adjusting mechanism, which is connected with one driven shaft to change the relative position between the first bone shaping and cutting tool and the at least one other bone shaping and cutting tool. A bone shaping and cutting tool is also disclosed, which has flat or helical structure. | 11-18-2010 |
| 20100324563 | MIDLINE REFERENCING FEMORAL SIZING CALIPER - A sizing caliper for determining the optimum size of a femoral component of a knee prosthesis includes a caliper body, a drill guide body, a stylus tower and a graduated stylus slidably coupled to the stylus tower. The caliper body, the drill guide body and the stylus tower are slidably linked to each other by a linkage pin laterally extending there through in a manner thereby when the caliper body and the stylus tower are linearly displaced in opposite directions in reference to the drill guide body, the caliper body and the stylus tower are linearly displaced at an equal rate with respect to the drill guide body. | 12-23-2010 |
| 20110015637 | SURGICAL GUIDING TOOL, METHODS FOR MANUFACTURE AND USES THEREOF - Surgical guiding tools for surgery on a bone head which include a cutting component, a guiding component and a collar having a patient-specific component are disclosed. The surgical guiding tools are interconnected which ensures secure and accurate placement of the guiding tool and thus guarantees accurate implementation of the pre-operative planning of the surgical intervention. | 01-20-2011 |
| 20110060341 | ALIGNMENT GUIDES FOR USE IN COMPUTER ASSISTED ORTHOPEDIC SURGERY TO PREPARE A BONE ELEMENT FOR AN IMPLANT - In an embodiment, the methodology of the present invention is based on the use of an intraoperative navigation system and of a compact alignment guide for alignment of implant components. In an embodiment, an alignment guide of the present invention includes a first component fixable to a bone element; a second mobile component, and a third mobile component, wherein the second mobile component and two control mechanisms form a first link, wherein the two control mechanisms are working in parallel to perform adjustments in two degrees of freedom, wherein the third mobile component and three control mechanisms form a second link, wherein the three control mechanisms are working in parallel to perform adjustments in three additional degrees of freedom, and wherein the first link adjustments and the second link adjustments are performed in series to provide a total adjustment of five degrees of freedom relative to the first component. | 03-10-2011 |
| 20110071534 | METHOD OF APPLYING A FEMORAL HEAD RESURFACING PROSTHESIS - A method of applying a femoral head resurfacing prosthesis to a selected femoral head includes mounting a jig on a femur corresponding to the selected femoral head. The jig includes an applicator adapted to engage the femoral head resurfacing prosthesis and push said prosthesis toward the femoral head without damaging an outer surface of the prosthesis. The jig is biased against the femur while moving the applicator from a first position in which the applicator is spaced from the head by a first distance to a second position in which the applicator is spaced from the head by a second distance shorter than said first distance thereby pushing the femoral head resurfacing prosthesis into position on the selected femoral head without damaging the outer surface of the prosthesis with the jig. The jig is removed from the femur once the resurfacing prosthesis is in position on the selected femoral head. | 03-24-2011 |
| 20110160736 | PATIENT-SPECIFIC FEMORAL GUIDE - A medical device for preparing an elongated bone, such as a proximal femoral bone, for receiving an implant includes a patient-specific femoral guide and an elongated alignment element. The femoral guide has a patient-specific three-dimensional bone-engaging surface configured according to a preoperative plan based on a three-dimensional image model of the femoral bone to mate complementarily with the surface of the proximal femoral bone extending between the greater trochanter, the femoral neck and the femoral shaft of the proximal femur. The femoral guide includes a first guide end forming a planar guide configured for guiding a neck resection. The alignment member can be removably attached to the femoral guide and defines a reference axis for guiding a cutting tool into the femoral bone through a resected surface of the femoral neck. | 06-30-2011 |
| 20110184421 | Instrumentation for Implants with Transition Surfaces and Related Processes - Implants, and processes for installing them, which replace the medial condyle and portions of the patellofemoral channel but preferably not portions of the lateral condyle that articulate relative to the tibia. Processes are provided which allow proper location and orientation of an anterior resection and a distal resection on the femur, which make use of a transition point which can be designated on the bone, for navigating proper positioning of such implants. Proper positioning of the implant relative to the femur for insuring a smooth transition between lateral portions of the implant and the lateral condyle is thus reduced to determining proper medial/lateral location of the implant on the anterior and distal resections. Such implants and processes can allow, among other things, for controlled location and orientation of an implant on the bone which saves lateral compartment bone, which eliminates the need to sacrifice the anterior and posterior cruciate ligaments, and which is adapted for minimally invasive surgery with its attendant benefits. | 07-28-2011 |
| 20110208201 | METHODS FOR DETERMINING PIN PLACEMENT DURING HIP SURGERY - New apparatuses and methods for their design and use are disclosed that can be used to assist a surgeon in placing a guide pin during hip surgery. Specifically, a hip surgery method is disclosed in which an image of a patient's femur can be obtained and used to design and prepare a mold that contains an aperture for guiding a drill at the desired location and angle. During surgery the mold can be quickly and accurately positioned on the exposed femur head. Then, a drill bit can be inserted through the aperture and an opening for a pin can be drilled into the femur head. The mold can have a unique contoured surface adapted to fit to the femur head in a single unique position such that the opening is made in a unique desired position. The apparatuses and methods facilitate faster, more accurate surgery and are less invasive. | 08-25-2011 |
| 20110213377 | Patient Selectable Joint Arthroplasty Devices and Surgical Tools - Disclosed herein are methods, compositions and tools for repairing articular surfaces repair materials and for repairing an articular surface. The articular surface repairs are customizable or highly selectable by patient and geared toward providing optimal fit and function. The surgical tools are designed to be customizable or highly selectable by patient to increase the speed, accuracy and simplicity of performing total or partial arthroplasty. | 09-01-2011 |
| 20110213378 | DISTAL FEMORAL TRIAL WITH REMOVABLE CUTTING GUIDE - Various embodiment of the present invention provide a distal femoral trial that allows a surgeon to cut the central box geometry of a distal femur using an implant-shaped trial. The trial includes a cutting guide that is removable from the trial and adjustable with respect to the trial. The guide is intended to control the depth and direction of the cutting instruments used to prepare the femur for the a posterior stabilized implant. | 09-01-2011 |
| 20110230889 | DISTAL FEMORAL CUTTING GUIDE - A method of positioning a femoral cutting guide on a distal end of a femur establishes at least a first reference plane to perform a distal femoral planar cut. The method includes inserting a mounting member into an intramedullary canal of the femur and coupling a bridge member to the mounting member. The method also includes placing a cutting guide member over a medial anterior portion of the distal femur. The cutting guide member has a first channel that establishes the first reference plane. The bridge member has a bridge channel. A wall of the bridge channel is inserted into the first channel of the cutting guide member. A mounting mechanism generates resistance between the bridge member and the cutting guide member. The resistance is overcome by positioning the cutting guide member relative to the femur. | 09-22-2011 |
| 20110238073 | Patient Selectable Joint Arthroplasty Devices and Surgical Tools - Disclosed herein are methods, compositions and tools for repairing articular surfaces repair materials and for repairing an articular surface. The articular surface repairs are customizable or highly selectable by patient and geared toward providing optimal fit and function. The surgical tools are designed to be customizable or highly selectable by patient to increase the speed, accuracy and simplicity of performing total or partial arthroplasty. | 09-29-2011 |
| 20110251618 | Distal femoral cutting guide - A device and a method for establishing a position and orientation for a preliminary saw cut in a distal end of a femur to prepare the femur for installation of a prosthetic knee joint. A guide block defining a cutting plane is carried on an adjustably positioned locating arm that is supported on an alignment body that can be mounted on a femur either with or without an intramedullary rod in place in the distal end of the femur. Adjustment screws and horizontal slots in the alignment body provide for varus/valgus angular adjustment of the position of the alignment body. An adjustment guide block may have a saw guiding face defining a differently oriented cutting plane. | 10-13-2011 |
| 20120029520 | Patient Selectable Joint Arthroplasty Devices and Surgical Tools - Disclosed herein are methods, compositions and tools for repairing articular surfaces repair materials and for repairing an articular surface. The articular surface repairs are customizable or highly selectable by patient and geared toward providing optimal fit and function. The surgical tools are designed to be customizable or highly selectable by patient to increase the speed, accuracy and simplicity of performing total or partial arthroplasty. | 02-02-2012 |
| 20120078263 | BONE PRESERVING INTRAOPERATIVE DOWNSIZING SYSTEM FOR ORTHOPAEDIC IMPLANTS - An orthopaedic implant system includes a set of provisional orthopaedic implants having different implant sizes. Each provisional implant facilitates an intraoperative selection of the next-smallest implant size without removing the provisional implant from the bone. All of the implant sizes share a common sagittal configuration of distal and anterior bone contacting surfaces, but have variable sagittal configurations only in the posterior bone contacting surfaces. Thus, where a relatively larger femoral provisional component is mounted to a femur, changing to a smaller provisional component (i.e., “downsizing”) can be accomplished by recutting only two of five original femoral cuts. Cut slots provided in each provisional implant are sized and positioned to correspond to the posterior bone contacting surface geometry of the next-smallest provisional implant size, so that the cut slots can be used to further resect posterior femoral surfaces to accept the next-smallest implant component size. | 03-29-2012 |
| 20120123422 | Patient-Matched Instruments - Patient-matched surgical instruments, and methods for making patient-matched surgical instruments, may include patient-matched surgical instruments having an anatomy facing side with several discrete, physically separate anatomy contacting portions configured to match the anatomy of a particular patient. The anatomy contacting portions may be one or more of non-uniform in distribution, non-uniform in shape or non-uniform in surface area. | 05-17-2012 |
| 20120123423 | PATIENT-SPECIFIC INSTRUMENTS FOR TOTAL HIP ARTHROPLASTY - Patient-specific instruments for preparing bones, such as a proximal femur and an acetabulum in a total hip arthroplasty, to receive respective orthopedic prostheses. The guides include a femoral resection guide and a bone canal preparation guide, each having a surface conforming to at least one of a metaphysis and a femoral neck of a femur. The femoral resection guide includes a cut referencing surface to guide a cutting instrument, and the bone canal preparation guide includes a guide aperture sized to guide a rasping instrument. An acetabular guide includes a surface conforming to an acetabulum and a guide aperture for guiding a surgical instrument such as a reaming instrument. The patient-specific, conforming surfaces of each of the guides may be designed based on patient-specific anatomical data obtained from the use of imaging technology. | 05-17-2012 |
| 20120130385 | Cutting guide apparatus and surgical method for use in knee arthroplasty - Novel cutting guides and surgical methods for use in knee arthroplasty are described. Embodiments of the inventive cutting guide apparatus include fixed and adjustable cutting guide blocks having a series of slots designed to accommodate a cutting saw. The cutting guides and surgical method are designed to allow for the provision of all desired surgical cuts upon the distal end of the femur, for subsequent implantation of a prosthesis thereto, without having to remove the cutting guide block. | 05-24-2012 |
| 20120136359 | FEMORAL CUTTING GUIDE DEVICE FOR REVISION OPERATIONS IN KNEE ENDOPROSTHETICS - A device for the implementation of osteotomies on the distal femur in knee-joint replacement surgery with a base element ( | 05-31-2012 |
| 20120143200 | POSITIONING GUIDE AND A FEMUR BONE CUTTING GUIDE SYSTEM - A femur bone cutting guide system ( | 06-07-2012 |
| 20120158002 | MARKING TEMPLATE FOR INSTALLING A CUSTOM REPLACEMENT DEVICE FOR RESURFACING A FEMUR AND ASSOCIATED INSTALLATION METHOD - A replacement device for resurfacing a joint surface of a femur and a method of making and installing such a device is provided. The custom replacement device is designed to substantially fit the trochlear groove surface, of an individual femur, thereby creating a “customized” replacement device for that individual femur and maintaining the original kinematics of the joint. The top surface is designed so as to maintain centrally directed tracking of the patella perpendicular to the plane established by the distal end of the femoral condyles and aligned with the center of the femoral head. | 06-21-2012 |
| 20120165821 | MARKING TEMPLATE FOR INSTALLING A CUSTOM REPLACEMENT DEVICE FOR RESURFACING A FEMUR AND ASSOCIATED INSTALLATION METHOD - A replacement device for resurfacing a joint surface of a femur and a method of making and installing such a device is provided. The custom replacement device is designed to substantially fit the trochlear groove surface, of an individual femur, thereby creating a “customized” replacement device for that individual femur and maintaining the original kinematics of the joint. The top surface is designed so as to maintain centrally directed tracking of the patella perpendicular to the plane established by the distal end of the femoral condyles and aligned with the center of the femoral head. | 06-28-2012 |
| 20120203234 | FEMORAL PROSTHETIC IMPLANT - A system for use in a total knee arthroplasty procedure can include a first cutting guide, an alignment guide and a femoral prosthetic implant. The first cutting guide can include at least one planar guide surface adapted to guide a cutting tool to cut femur. The alignment guide can contact the femur and provide for markings to be made in the femur that dictate a location and orientation of the first cutting guide. The implant is adapted to be implanted on the resected femur. The implant can have an inwardly protruding structure to provide medial-lateral fixation stability, and can have an anterior fixation path that diverges proximally away from a long axis of the femur and a posterior fixation path that converges proximally towards the long axis such that the posterior fixation path and anterior fixation path converge toward one another proximally of a distal contact surface. | 08-09-2012 |
| 20120289967 | INSTRUMENT FOR PREPARING AND/OR MACHINING A FEMORAL HEAD - In some examples, a method for at least one of preparation or machining of a femoral head formed on a neck of a femur includes selecting an instrument including probing forceps and a guide element including a centering axis. The guide element is coupled to the probing forceps at first and second coupling points disposed along the centering axis such that the centering axis is disposed in a central plane of the probing forceps independent of an opening angle of the probing forceps. The probing forceps are closed with probing jaws symmetrically contacting the neck of the femur at opposite sides with respect to an axis of the neck of the femur. The guide element self-adjusts with closing of the probing forceps so that the centering axis is automatically aligned in the middle with respect to the two oppositely disposed sides of the neck of the femur. | 11-15-2012 |
| 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 |
| 20130012950 | Stylus Assembly - A stylus assembly is adapted to be attached to a surgical jig. The stylus assembly comprises a body having first and second arms with a space therebetween for receiving a portion of the surgical jig, a stylus adjustably mounted relative to the body, and a locking member in use, actuation of the locking member from an unlocked to a locked position enables locking of the body to the surgical jig and locking of the stylus relative to the body. | 01-10-2013 |
| 20130053855 | BONY BALANCING APPARATUS AND METHOD FOR TOTAL KNEE REPLACEMENT - Total knee replacement surgery is improved through custom cuts on the distal femur without resorting to expensive computer navigation. The method involves measurement, on plain radiographs prior to surgery, the amount of bone that would be resected on each knee, medially and laterally on the distal femur. In the preferred embodiments, the predetermined distance is in the range of 8-10 mm, more preferably 10 mm, and the resulting distance from the second line to the apex of the lateral condyle is in the range of 6 to 7 mm. A cutting fixture is provided and used to resect the medial condyle at the predetermined distance and the lateral condyle at the measured resulting distance. | 02-28-2013 |
| 20130085500 | Patient-Specific Femoroacetabular Impingement Instruments And Methods - A device for a patient-specific acetabular and/or femoral guide. The guides can be used in a selected resection of at least one of a femur and an acetabulum to increase a range of motion of the femur relative to the acetabulum. Generally, a natural acetabulum and femoral head are maintained. | 04-04-2013 |
| 20130116699 | Patient-Specific Femoral Version Guide - An orthopedic device includes a monolithic patient-specific guide. The patient-specific guide includes a three-dimensional contact surface preoperatively configured from medical scans of a specific patient as a negative surface of a medial portion of a proximal femoral bone of the patient according to a preoperative surgical plan for the patient. The guide also includes a proximal planar surface configured for guiding a resection of a femoral neck of the patient, and a scale formed on the planar surface. The scale is configured for indicating a preoperatively planned femoral version of a femoral stem implant and deviations therefrom. | 05-09-2013 |
| 20130158557 | ANATOMICAL CONCENTRIC SPHERES THA - Devices and methods for identifying and maintaining the concentric spherical centers of a femur and acetabulum during revision or joint replacement surgery so that post surgery the anatomical spherical centers are maintained. Also disclosed are novel techniques and devices to project images onto an anatomical feature, such as exposed bone, to virtually fit trial prosthetic components, establish bone cut markings, and establishing the anatomical spherical center of a joint. | 06-20-2013 |
| 20130197529 | Patient-Specific Knee Alignment Guide And Associated Method - A method of preparing a knee joint for a prosthesis in a patient includes mating a patient-specific three-dimensional curved inner surface of a femoral alignment guide onto a corresponding three-dimensional femoral joint surface of the patient. The patient-specific three-dimensional curved inner surface is preoperatively configured from medical scans of the knee joint of the patient. First and second holes are drilled into an anterior portion of the femoral joint surface through corresponding first and second guiding apertures of the femoral alignment guide. | 08-01-2013 |
| 20130204262 | SURGICAL PROCESS FOR ANTERIOR HIP REPLACEMENT - Various exemplary embodiments relate to a method of performing an anterior approach hip replacement using a retractor assembly. The method may include: providing a retractor assembly including a first vertical post, a plurality of accessory arms mounted to the first post, a second vertical post, and a femur distractor mounted to the second post; exposing a surgical site including the femoral neck and acetabulum using a plurality of retractors secured to the accessory arms; cutting the femoral neck to remove the femoral head; preparing the acetabulum for insertion of an acetabular cup; preparing the femur for insertion of a femoral implant by lifting the femur using a femur hook and the femur distractor; and closing the surgical site. In various alternative embodiments, the retractors may include a lesser trochanteric retractor coming from a direct medial approach and a greater trochanteric retractor coming from a lateral, posterior, proximal approach. | 08-08-2013 |
| 20130325021 | METHOD OF ASSEMBLING AND POSITIONING A FEMORAL ORTHOPAEDIC SURGICAL INSTRUMENT - A method for performing an orthopaedic surgical procedure on a femur includes attaching a proximal end of an intramedullary adaptor to an intramedullary orthopaedic surgical instrument, securing a distal end of an intramedullary adaptor to a base cutting block, inserting the intramedullary orthopaedic surgical instrument into a medullary canal using the base cutting block, and positioning the base cutting block on a distal end of the femur. | 12-05-2013 |
| 20140012268 | Method And Apparatus For Preparing A Proximal Femur - A system for preparing a proximal femur can include a broach that includes a broach body having an anterior side, a posterior side, a lateral side and a medial side. The medial side can have a roughened cutting surface. The lateral side can have a smooth, non-cutting surface. The system can further comprise a cutting scribe assembly and a cutting guide assembly. | 01-09-2014 |
| 20140081277 | UNICOMPARTMENTAL CUSTOMIZED ARTHROPLASTY CUTTING JIGS - Disclosed herein are unicompartmental femoral and tibial arthroplasty jigs for respectively assisting in the performance of unicompartmental femoral and tibial arthroplasty procedures on femoral and tibial arthroplasty target regions. The femoral and tibial unicompartmental arthroplasty jigs each include a first side, a second side and a mating surface. Each second side is generally opposite its respective first side. For the femoral jig, the mating surface is in the first side of the femoral jig and configured to matingly receive and contact a generally planar area of an anterior side of a femoral shaft generally proximal of the patellar facet boarder and generally distal an articularis genu. The first side of the femoral jig is configured to be oriented towards the femoral arthroplasty target region surface when the mating surface of the femoral jig matingly receives and contacts the planar area. For the tibial jig, the mating surface of the tibial jig is in the first side and configured to matingly receive and contact a generally planar area of an anterior side of a tibial shaft distal of the tibial plateau edge and generally proximal of the tibial tuberosity. The first side of the tibial jig is configured to be oriented towards the tibial arthroplasty target region surface when the mating surface of the tibial jig matingly receives and contacts the planar area. | 03-20-2014 |
| 20140142580 | CUSTOMIZED PATIENT-SPECIFIC BONE CUTTING BLOCKS - A number of orthopaedic surgical instruments are disclosed. A method, apparatus, and system for fabricating such instruments are also disclosed. | 05-22-2014 |
| 20140276866 | Method And Apparatus For Determining A Location - A template operable to reestablish the center of rotation of a native femoral head at the head of an implanted prosthesis. The template includes a first member with a marking passage and optional cutting guide and a second member with a target. The first member of the template can be placed on a femur and the second member can be moved in the proximal-distal, medial-lateral and anterior-posterior directions to fix the center of the target at the center of rotation of a femoral head. The head of a prosthesis can be manipulated to come in contact with the target to reestablish the center of rotation of the native femoral head. | 09-18-2014 |
| 20140276867 | PATIENT-SPECIFIC ASSEMBLIES, JIGS, AND METHODS FOR A PERSONALIZED TOTAL HIP ARTHROPLASTY SYSTEM - A patient-specific total hip arthroplasty system including surgical guide and jig instrumentation modeled by computer aided design using image data derived from a specific patient's relevant anatomy. Patient-specific jigs fit surface topography of portions of the acetabulum and femur of the patient and are designed to guide surgical implantation at very precise geometries unique to each patient. Patient-specific pin-locating jigs, pin-rail and spacer systems, acetabular reaming and impacting jigs, and femoral resection and version jigs are fabricated pre-operatively according to the models. Methods for fabricating jig components of the system and methods of performing a total hip arthroplasty utilizing the system are also disclosed. | 09-18-2014 |
| 20140324054 | DEVICE FOR DEFINING A CUTTING PLANE FOR A BONE RESECTION - An adjustable device for defining a cutting plane for bone resection comprising a base positionable on the bone and a cut-guiding element placeable on the base. The cut-guiding element includes a cut-guiding structure for guiding a cutting tool in the cutting plane, the cut-guiding element being tiltable relative to the base about at least one first axis by an adjustable tilt mechanism to adjust the angle of the cutting plane. The tilt mechanism includes a rectilinear guide and a slide that is linearly displaceable along the guide in the longitudinal direction. The tilt mechanism includes a guide portion relative to which an effective portion of the slide is displaced; the guide portion and the effective portion having interacting structures forming a sliding guide effective at a right angle to the longitudinal direction. | 10-30-2014 |
| 20140358149 | SURGICAL PROCESS FOR ANTERIOR HIP REPLACEMENT - Various exemplary embodiments relate to a method of performing an anterior approach hip replacement. The method may include: exposing a surgical site including the femoral neck and acetabulum using a plurality of retractors secured to the plurality of accessory arms; cutting the femoral neck to remove the femoral head; preparing the acetabulum for insertion of an acetabular cup; preparing the femur for insertion of a femoral implant by lifting the femur using a femur hook and the femur distractor; and closing the surgical site. In various alternative embodiments, the method may include using a lesser trochanteric retractor corning from a direct medial approach and a greater trochanteric retractor coming from a lateral, posterior, proximal approach. | 12-04-2014 |
| 20140364857 | Joint Arthroplasty Devices, Systems, and Methods - Various devices, surgical tools, molds, methods and/or surgical techniques are disclosed herein that incorporate a variety of features to improve and/or simplify the preparation of a patient's anatomical surfaces for installation of joint implant replacement and/or resurfacing components. | 12-11-2014 |
| 20150032114 | Cutting Guide for Generating an Outer Contour for a Joint Endoprosthesis - A cutting guide with a sagittal guide plate is made available for generating an outer contour on a bone in order to apply a joint endoprosthesis, in particular a femoral component of a knee endoprosthesis. The cutting guide according to the invention can be oriented relative to the bone and has at least two sagittal guide slits for guiding a bone-cutting tool, wherein the sagittal guide slits extend through the sagittal guide plate and are arranged at an angle to each other. | 01-29-2015 |
| 20150100059 | KNEE BALANCING FOR REVISION PROCEDURES - Methods, systems and devices are provided for facilitating a surgical procedure on a knee, particularly, a revision total knee replacement procedure. Prior femoral and tibial prostheses are removed. A cut end of a distal femur is engaged with a femoral adjustment member, which will typically center itself about an intermedullary rod placed into the femur. The lateral and medial forces exerted by lateral and medial sides of the femoral adjustment member and the cut tibial plateau against each other are measured. The femoral adjustment member is adjusted to apply and or adjust tension to the lateral collateral ligament and/or the medial collateral ligament based an the measured forces, for example, such that the measured lateral force and the measured medial force are matched. Based on the position of the adjusted femoral member, guided clean-up cuts for placement of a new femoral prostheses are made on the cut end of the distal femur. | 04-09-2015 |
| 20150133943 | RESECTION GUIDE AND METHOD OF POSITIONING - A bone resection guide, which includes a profiling guide. The profiling guide includes a first planar bone contact surface, a first guide surface and at least one outline corresponding to at least a portion of a first implant. | 05-14-2015 |
| 20150148807 | METHOD FOR FEMUR RESECTION ALIGNMENT APPROXIMATION IN HIP REPLACEMENT PROCEDURES - Aspects of the present disclosure involve systems, methods, computer program products, and the like, for utilizing a series of images of a patient's anatomy to determine a cut plane for use during a hip replacement procedure. To determine a cut plane for use during the procedure, the computer program determines a best fit line through the center of the neck of the femur, as well as a best fit line through the femoral shaft. In one particular embodiment, a cut plane through the femur may then be determined as perpendicular to the center line through the neck of the femur. Further, the location of these features in the images may be determined by analyzing the gray scale value of one or more pixels around a selected point on the image. The pixel with the lowest gray scale value may then be assumed to be the edge of the cortical bone in the 2D image. | 05-28-2015 |
| 20150342616 | PATIENT-SPECIFIC INSTRUMENTS FOR TOTAL HIP ARTHROPLASTY - A kit of patient-specific guides for use in preparing a proximal femur to receive a prosthesis is described, and includes patient-specific preparation guides. The femoral resection guide has a body including a proximal cut guide surface and a distal conforming surface contoured to rest against and substantially conform to a femoral neck and/or a metaphysis of the proximal femur. The proximal cut guide surface is configured to guide a cutting instrument for resecting the head of the proximal femur. The femoral canal preparation guide has a body including a proximal surface and a distal surface having a first confirming portion contoured to rest against and substantially conform to an unresected portion of a femoral neck and/or a metaphysis of the proximal femur. The body includes a guide aperture extending therethrough that is dimensioned to guide an instrument for preparing a canal of the proximal femur. | 12-03-2015 |
| 20150342623 | ARTHROPLASTY JIG - A method and system for performing a total joint arthroplasty procedure on a patient's damaged bone region. A CT image or other suitable image is formed of the damaged bone surfaces, and location coordinate values (x | 12-03-2015 |
| 20160008010 | METHOD OF ASSEMBLING AND POSITIONING A FEMORAL ORTHOPAEDIC SURGICAL INSTRUMENT | 01-14-2016 |
| 20160100845 | PATIENT-SPECIFIC FEMORAL VERSION GUIDE - An orthopedic device includes a monolithic patient-specific guide. The patient-specific guide includes a three-dimensional contact surface preoperatively configured from medical scans of a specific patient as a negative surface of a medial portion of a proximal femoral bone of the patient according to a preoperative surgical plan for the patient. The guide also includes a proximal planar surface configured for guiding a resection of a femoral neck of the patient, and a scale formed on the planar surface. The scale is configured for indicating a preoperatively planned femoral version of a femoral stem implant and deviations therefrom. | 04-14-2016 |
