Patent application number | Description | Published |
20110004319 | Femoral Hip Prosthesis and Method of Implantation - Implants and methods are presented for surgically repairing a hip joint with a proximal femoral prosthesis that comprises femoral head component and a femoral stem component. The femoral stem component comprises a neck portion, a flange portion, a transitional body region and an elongated stem. The femur is prepared for implantation of the femoral hip prosthesis by resecting the proximal femur and reaming a symmetric intramedullary cavity in the femur. The femoral hip prosthesis is then inserted the on the resected femur and in the intramedullary cavity. The femoral hip prosthesis elastically deforms when loaded during use to apply dynamic compressive loads and displacement to the calcar region of the resected proximal femur. | 01-06-2011 |
20110190897 | SYSTEM AND METHOD FOR JOINT ARTHROPLASTY - An orthopaedic joint prosthesis may include a first component, a bearing component, and a third component. The first component has a base and a keel protruding from the base to extend into a first bone. The keel's longitudinal axis is offset from a geometric center of the base. The base has a first articular surface and the bearing component has a second articular surface shaped to articulate with the first articular surface. A feature unitary with the first component reversibly attaches to the bearing component. The bearing component has a third articular surface shaped to articulate with a fourth articular surface on the third component. A distraction feature of the bearing component is shaped to provide alignment and/or distraction between the first articular surface and the fourth articular surface during insertion of the bearing component into a joint space between the first and second bones. | 08-04-2011 |
20110208304 | Laser Based Metal Deposition LBMD of Antimicrobials to Implant Surfaces - A method is provided for depositing a hard wear resistant surface onto a porous or non-porous base material of a medical implant. The wear resistant surface of the medical implant device may be formed by a Laser Based Metal Deposition (LBMD) method such as Laser Engineered Net Shaping (LENS). The wear resistant surface may include a blend of multiple different biocompatible materials. Further, functionally graded layers of biocompatible materials may be used to form the wear resistant surface. Usage of a porous material for the base may promote bone ingrowth to allow the implant to fuse strongly with the bone of a host patient. The hard wear resistant surface provides device longevity, particularly when applied to bearing surfaces such as artificial joint bearing surfaces or a dental implant bearing surfaces. An antimicrobial material such as silver may be deposited in combination with a metal to form an antimicrobial surface deposit. | 08-25-2011 |
20110270256 | SURGICAL RASP WITH RADIOFREQUENCY ABLATION - A surgical rasping system functional in multiple orthopedic applications, including but not limited to shoulder, knee, hip, wrist, ankle, spinal, or other joint procedures. The system comprises a rasping head which may be low profile and offer a flat cutting/rasping surface, and is configured to be driven by an attached hub that translates a rotational movement into a reciprocating motion. Suction for removal of bone fragments or other tissues is provided through an opening spaced apart from or adjacent to the rasping surface. A radiofrequency ablation (RF) electrode may be carried on the rasping system to provide ablation or coagulation of soft tissues. | 11-03-2011 |
20110270403 | Implantable Mobile Bearing Prosthetics - A knee prosthesis including a femoral implant, a tibial implant, a tibial insert and a cam post. The femoral implant is secured to a femur and has a gap for receiving a natural PCL. The tibial implant is secured to a tibia. The tibial insert comprises a medial cavity with a rotational axis. The tibial insert has articulating surfaces that match the contours of the condyles of the femoral implant and a notch for retaining the natural PCL. The tibial insert has a medial boss that aligns with the medial cavity allowing it to rotate about the rotational axis. A post is secured to the tibial implant and enters a hole of the tibial insert providing anterior and posterior stops for the rotation of the tibial insert about the rotational axis. | 11-03-2011 |
20110313534 | SYSTEMS AND METHODS FOR PROSTHETIC KNEE - A knee prosthesis including femoral and tibial implants, a tibial insert and a cam post assembly. The femoral implant is secured to a femur and has a cam feature and condyles. The tibial implant is secured to a tibia. The tibial insert has articulating surfaces that match the contours of the condyles of the femoral implant, and may have a medial boss that aligns with the tibial implant to provide rotation about a medially displaced rotation axis. A cam post is secured to the tibial implant and passes through a channel of the tibial insert. A motion limiting structure provides limits to motion between the tibial insert and the tibial baseplate. The cam post assembly interacts with the femoral implant cam feature and allows more anatomically correct rollback and femoral external rotation during knee flexion, and varus/valgus support to the femur. | 12-22-2011 |
20120010660 | SYSTEM AND METHOD FOR SEGMENTALLY MODULAR SPINAL PLATING - A modular implant for stabilizing the relative motion of spinal vertebrae comprises at least two pairs of plates which connect to two adjacent spinous processes, a spacer configured to be positioned between the spinous processes, and a fastener which pivotably connects to the plates and the spacer. The spacer is interchangeable and may comprise a variety of materials, each providing a different level of elasticity to the spinous processes. Relative motion between vertebrae can also be controlled by varying the surface configuration of the plates and by varying threading of the fastener. Several implants may be linked to provide stabilization across multiple vertebral levels, and the relative motion provided at each vertebral level may differ. A method for revising the implant is provided which comprises accessing the implant and replacing the spacer. | 01-12-2012 |
20120046747 | SYSTEMS AND METHODS FOR ZIPKNOT ACL FIXATION - A system and method for securing an ACL graftmay include a line routed through a plate. The plate may include an elongated body with a plurality of passageways, and a dogbone feature on at least one end of the body. The line may be routed to create at least one one-way slide so no knots are required. The line may form an adjustable loop that receives the graft. The adjustable loop is adjustable through the one-way slide feature. The plate may be configured to pass through a bone tunnel. The plate may be toggled after passage through the bone tunnel to prevent withdrawal back through the bone tunnel because the plate contact area is larger the bone tunnel area. | 02-23-2012 |
20120059416 | INTRA-OPERATIVE ACL GRAFT INSTRUMENTATION - A line lock system may include a line routed through a plate. The plate may have an elongated body with a plurality of passageways. The line is routed to form at least one one-way slide so no knots are required. The system may include filaments routed through the passageways of the plate or around a dogbone feature of the plate. The filaments may be used to toggle the plate after passage through a hole to prevent withdrawal of the plate back through the hole. The system may include a line lock stabilizer or counter-tension tool to stabilize the line lock as the line is adjusted, a compression limiter to selectively reduce compression in the one-way slide to facilitate adjustment of the line, means for adjusting the line, or a line cutter. | 03-08-2012 |
20120065731 | SYSTEMS AND METHODS FOR INTRA-OPERATIVE TENSION AND FIXATION OF ZIPKNOT ACL FIXATION - A line lock system may include a line routed through a plate. The plate may have an elongated body with a plurality of passageways. The line is routed to form at least one one-way slide so no knots are required. The system may include filaments routed through the passageways of the plate or around a dogbone feature of the plate. The filaments may be used to toggle the plate after passage through a hole to prevent withdrawal of the plate back through the hole. The system may include a line lock stabilizer or counter-tension tool to stabilize the line lock as the line is adjusted. The system may include a compression limiter to selectively reduce compression in the one-way slide to facilitate adjustment of the line. The line lock stabilizer, counter-tension tool, or compression limiter may be a filament. | 03-15-2012 |
20120071929 | Linked Bilateral Spinal Facet Implants and Methods of Use - Superior and/or inferior facets of one or more facet joints may be replaced by superior and/or inferior facet joint prostheses. In one embodiment, a kit of superior or inferior prostheses is provided, in which the prostheses have at least two dimensions that vary among members of the kit independently of each other. Each prosthesis may have a bone engaging surface having a surface that is polyaxially rotatable against a corresponding resection of a vertebra. Each prosthesis may also have an articulating surface shaped such that, after attachment to the spine, the replaced or partially replaced facet joints provide a larger medial-lateral range of motion when the spine is flexed than when the spine is extended. Crosslinks may be used to connect left and right prosthesis together in such a manner that they are stabilized in a position in which they are seated directly against the vertebra. | 03-22-2012 |
20120071930 | Linked Bilateral Spinal Facet Implants and Methods of Use - Superior and/or inferior facets of one or more facet joints may be replaced by superior and/or inferior facet joint prostheses. In one embodiment, a kit of superior or inferior prostheses is provided, in which the prostheses have at least two dimensions that vary among members of the kit independently of each other. Each prosthesis may have a bone engaging surface having a surface that is polyaxially rotatable against a corresponding resection of a vertebra. Each prosthesis may also have an articulating surface shaped such that, after attachment to the spine, the replaced or partially replaced facet joints provide a larger medial-lateral range of motion when the spine is flexed than when the spine is extended. Crosslinks may be used to connect left and right prosthesis together in such a manner that they are stabilized in a position in which they are seated directly against the vertebra. | 03-22-2012 |
20120226277 | ORTHOPEDIC EXTERNAL FIXATOR AND METHOD OF USE - An orthopedic apparatus is provided for bridging a first bone unit to a second bone unit. The apparatus is demonstrated on a finger joint, wherein one of the bones and/or ligaments and/or tendons of the joint is/are injured. A method for implanting and using the apparatus also is presented. The apparatus includes a reformably deformable span portion which is generally circular and preferably rhombic. By deforming or reforming the span portion, it can be repositioned laterally, and/or it can be rotated to allow range of rotary motion so as to promote healing. | 09-06-2012 |
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 |
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 |
20120310242 | Collet Fixation System - A bone fixation assembly which may include a bone fixation element, a collet and a flexible line. The bone fixation element may comprise a first and second passageway and at least the first passageway is configured to receive the collet. The flexible line passes through both passageways and is secured through the second passageway. The collet may be advanced into the first passageway causing the collet to circumferentially engage the flexible line fixing it in place. Instrumentation for securing the collet includes a collet driver, a counter torque instrument and a tensioner. | 12-06-2012 |
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 |
20130150975 | Shoulder Arthroplasty - A joint prosthesis system, specifically a shoulder prosthesis, for shoulder replacement, revision and repair. The implants provide fixation into the best bone available to a surgeon. The implants are used in a superior-inferior and anterior-posterior construct forming a type of cross or X-shape. The implants allow for interchangeability of the articulating component as well as rotational orientation. The systems will allow for augments to accommodate bone loss. The implants may allow for additional security using screws or anchors inserted into the scapula. | 06-13-2013 |
20130178900 | Porous Implants - A porous PEEK implant system which may provide tissue ingrowth throughout the body of the implant. The implant may comprise a solid or porous PEEK core. The porous PEEK implants may be of general shape and size but provide the structure necessary to carry out the function of the implant. The porous PEEK implant pores may be seeded with agents to encourage tissue ingrowth as well as other agents such as antibiotics, anesthetics, analgesics and the like. | 07-11-2013 |
20130211408 | Curved Arthroscopic Burr and Measurement Instrumentation - A tissue resection device includes a housing, a drive shaft, and a set of cutting inserts arranged in sequence. The cutting inserts are connected in the sequence by off-axis torque couplings so that each cutting insert may lie at an angle to an adjacent cutting insert. Each cutting insert includes at least one cutting edge, and the cutting edges in sequence form a cutting profile which may include a combination of straight and curved sections. The housing may be curved. Rotation of the drive shaft rotates the set of cutting inserts to form a cutting burr. | 08-15-2013 |
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 |
20130231748 | SYSTEM AND METHOD FOR INTERVERTEBRAL IMPLANT DELIVERY AND REMOVAL - An implant system provides motion preservation or stabilization between two spinal vertebrae. An associated instrumentation system is capable of delivering and removing the implants from either the anterior, left lateral or right lateral positions. The instrumentation system also provides instrumentation for delivering the implant end plates into the disc space, adjusting the position of the end plates in situ, compressing end plates into the vertebral bodies, interoperatively determining the height and angulation of bearings, delivering bearings together and then independently connecting them to the end plates. The system provides alternative instrumentation for revising the motion preservation disc from at least three directions. The system further provides alternative instrumentation for converting the motion preservation disc system to an interbody fusion device from at least three directions. | 09-05-2013 |
20130304070 | RECIPROCATING SURGICAL INSTRUMENT - A surgical rasping and/or shaving system functions in multiple orthopedic applications, including but not limited to shoulder, knee, hip, wrist, ankle, spinal, or other joint procedures. The system may comprise a tissue removal member with a rasping and/or shaving head which may be low profile and offer a flat cutting/rasping/shaving surface, or with a cutting head with at least one cutting edge. The tissue removal member is configured to be driven by an attached hub that translates a rotational movement into a reciprocating motion. Suction for removal of bone fragments or other tissues is provided through an opening spaced apart from or adjacent to the rasping surface. A radiofrequency ablation (RF) electrode may be carried on the system to provide ablation or coagulation of soft tissues. | 11-14-2013 |
20130304124 | SYSTEM AND METHOD FOR VERTEBRAL BODY PLATING - A spinal plating system for vertebral fixation includes a plate, a compression screw, multiple fixation members and polyaxially adjustable locking rings. The plate is shaped to conform to the curvature of the spine and the surfaces of the vertebral bodies. The compression screw fits through an insert, and together they are guided by the plate as the screw is driven into one of the vertebrae, producing compression between the adjacent vertebrae. A retaining lip on the plate prevents backout of the compression screw. The polyaxial locking rings can be polyaxially pivoted to attain a desired orientation, and are lockable to the plate to maintain the orientation. The fixation members fit through openings in the polyaxial locking rings and the plate to fix the plate to the vertebrae. Locking the polyaxial locking rings fixes the position of the fixation members relative to the plate, and prevents backout of the fixation members. | 11-14-2013 |
20140052182 | Linked Bilateral Spinal Facet Implants and Methods of Use - Superior and/or inferior facets of one or more facet joints may be replaced by superior and/or inferior facet joint prostheses. In one embodiment, a kit of superior or inferior prostheses is provided, in which the prostheses have at least two dimensions that vary among members of the kit independently of each other. Each prosthesis may have a bone engaging surface having a surface that is polyaxially rotatable against a corresponding resection of a vertebra. Each prosthesis may also have an articulating surface shaped such that, after attachment to the spine, the replaced or partially replaced facet joints provide a larger medial-lateral range of motion when the spine is flexed than when the spine is extended. Crosslinks may be used to connect left and right prosthesis together in such a manner that they are stabilized in a position in which they are seated directly against the vertebra. | 02-20-2014 |
20140135837 | MODULAR PERCUTANEOUS SPINAL FUSION - A posterior spinal fusion system may include pedicle screws and one or more segments designed to be attached to the implanted pedicle screws via nuts to fuse spinal motion segments in a modular fashion. The pedicle screws may have semispherical receiving surfaces, and each segment may have mounting portions at both ends, with corresponding semispherical engagement surfaces. The nuts may also have semispherical surfaces. The semispherical surfaces permit polyaxial adjustment of the relative orientations of the segments and pedicle screws. Each mounting portion may have a passageway therethrough to receive the proximal end of the corresponding pedicle screw; each passageway may intersect the edge of the corresponding engagement surface to facilitate percutaneous placement. Such placement may be carried out through cannulae to provide a minimally invasive (MIS) implantation procedure. | 05-15-2014 |
20140277522 | HUMERAL ARTHROPLASTY - Arthroplasty components include an articular surface and a bone-facing surface. The bone-facing surface includes a concave arrangement of planar surfaces which converge as they approach a middle portion of the articular surface. Instruments and implantation methods are also disclosed. | 09-18-2014 |