A61F2002/30574

Press Fit Stem
20200237416 · 2020-07-30 ·

A method of implanting a medical implant comprises the steps of reaming a tapered bore to a first depth and a counter bore, coaxial to the tapered bore, to a second depth less than the first depth in a long bone. The counter bore has a larger diameter than the tapered bore. The method further includes inserting a medical implant into the tapered bore and counter bore. The medical implant includes a stem and a collar disposed around a portion of the stem. Inserting the medical implant include fully seating a portion of the stem into the tapered bore to form a press-fit between the stem and the long bone. The collar may be moved into the counter bore to a depth less than the second depth.

PATIENT SPECIFIC STEMLESS PROSTHESIS ANCHOR COMPONENTS
20200214845 · 2020-07-09 ·

A stemless humeral anchor (10) includes a first end (12) configured to be embedded in a proximal portion of a humerus and a second end (14); a mating portion (16) for an articular component; a transversely extending collar (20); and a rotation control feature (22, 22A) for resisting rotation when the stemless humeral anchor is implanted. A void filling protrusion (24) can extend circumferentially from rotation control feature and can include a porous shell (26), in which a void filling component (28) can be disposed. The rotation control feature can comprise arms. One or more arms (22A) can have a larger radial extent than the others (22). A prosthesis assembly includes a base member (104) that has a helical structure (224) and one or more pathways (300). The pathway is accessible from a proximal end and is directed distally through the helical structure. The pathway is located inward of an outer periphery of the helical structure. The pathway extends in a space between successive portions of the helical structure. The prosthesis assembly includes a locking device (108) that has a support member (132) and an arm (110) that projects away from the support member. The arm is disposed in the pathway when the support member is disposed adjacent to the proximal end of the base member. The arm is disposed through bone in the space between successive portions of the helical structure when the prosthesis assembly is implanted.

Suture passages for prostheses

Disclosed herein are an implant with a suture passage and a method of attaching sutures to the same. The implant may include a suture pocket having a first pocket, a second pocket, and a suture hole disposed therebetween. The first pocket may have a first wall segment, the second pocket may have a second wall segment, and the suture hole may have a first sidewall segment extending from a first opening to a second opening. The first wall segment, the second wall segment, and the first sidewall segment may form a contiguous wall. A method of attaching a suture to the implant may include placing a tip of a suture needle on the first wall segment, sliding the suture needle into the first opening and pushing the suture needle through the suture hole.

INTERLOCKING INTERVERTEBRAL SPACER AND METHOD
20200138592 · 2020-05-07 ·

A surgical implant particularly for use in spinal surgery. The implant has a pair of integral locking structures extending from opposite sides thereof for receipt in channels machined into orthopedic components like adjacent vertebral bodies. The implant has a main body containing channel portions forming communication between the adjacent bones and a space between the adjacent bones permitting bone growth into the space through the implant.

Sizing instrument and punch for use in a surgical procedure to implant a stemless humeral component

A stemless humeral component for replacing the humeral head of a patient's humerus includes a support flange having a number of cantilevered legs extending distally away from a bottom surface thereof. Instruments and methods for surgically installing the stemless humeral component are also disclosed.

Arthroscopic shoulder arthroplasty and method thereof
10595886 · 2020-03-24 · ·

A novel method and instrumentation for insertion of humeral and glenoid total shoulder implant using arthroscopic visualization for bony preparation as well as insertion of components through small incisions. Mini instruments and cannulated guides and reamers are used in order to perform the procedure under direct arthroscopic visualization. For ease of insertion, the components are inserted separately and assembled in situ. Securing the humeral components in place is accomplished with bicortical screw transfixing the central peg of component.

NON-MODULAR, STEMMED, FEMORAL COMPONENT AND METHOD FOR TOTAL KNEE ARTHROPLASTY
20200078183 · 2020-03-12 ·

A non-modular, stemmed, femoral component for setting of a femur in total knee arthroplasty to obtain additional support and fixation, the femur including an anterior flange, an anterior cortex, a medullary canal, and an intercondylar notch, comprising a femoral component including a back; a non-modular stem fixed to the back of the femoral component and configured to be in line with the medullary canal, posterior to the anterior flange to allow space for the anterior cortex, and anterior to the intercondylar notch to prevent interruption of insertion of a posterior cruciate ligament, if the posterior cruciate ligament is to be maintained, when applied to the femur during setting of a femur in total knee arthroplasty.

OSSEOINTEGRATED IMPLANT ASSEMBLY HAVING TRANSVERSE THROUGH-OPENINGS, AND SYSTEMS AND METHODS OF USING SAME

An implant assembly for a long bone having a longitudinal axis. The implant assembly has a stem that is received in a surgically prepared medullary canal of the long bone. The stem defines at least one transverse through-opening that extends through the stem from a first portion of the outer surface of the stem to an opposed second portion of the outer surface of the stem. Each transverse through-opening has a central axis that is substantially perpendicular to the longitudinal axis of the stem. Each transverse through-opening receives a fastener and has a longitudinal dimension, measured relative to the longitudinal axis of the stem, that is sufficient to permit axial movement, relative to the longitudinal axis of the stem, of the stem relative to each fastener.

INTERVERTEBRAL PROSTHETIC DISC
20200030112 · 2020-01-30 · ·

A prosthetic disc for insertion between adjacent vertebrae includes upper and lower plates, a core disposed between the plates, and at least one projection extending from at least one of the upper and lower curved surfaces of the core into at least one recess of one of the inner surfaces of the plates. The recess is oversize with respect to the projection to allow sliding movement of the plate over the core while retaining the core between the plates during such sliding movement. The projection(s) may include a rod extending through an axial hole in the core, multiple surface features of the core, or the like.

Drill guide for use in a surgical procedure to implant a stemless humeral component

A stemless humeral component for replacing the humeral head of a patient's humerus includes a support flange having a number of cantilevered legs extending distally away from a bottom surface thereof. Instruments and methods for surgically installing the stemless humeral component are also disclosed.