Depuy Synthes Products, Inc.

Depuy Products, Inc.

Depuy Orthopaedics, Inc.

Depuy Ireland Unlimited Co.

James Alan Caywood

Ryan C Keefer

John M Armacost

Kyle E Lappin

Conrad L Klotz

Francisco A Amaral

Sarah M Anthony

Michael J Fortin

Gabriel M Surma

Joanna L Surma

Van A Flamion

Jeffrey Michael Ondrla

Paul Peter Lewis

Steven R Leisinger

Alena M Brandewie

Thomas P Schmalzried

An orthopaedic components, prostheses, and methods for a hip arthroplasty are disclosed. The acetabular prosthetic component includes an outer rim and a cavity defined by an inner wall. The cavity is sized to receive a femoral head of a femoral prosthetic component. The inner wall includes a curved surface extending inwardly from the outer rim to an inner end, and a semi-spherical surface connected to the inner end of the curved surfac. The inner wall is shaped to resist dislocation of the femoral head component from the cavity and permit the femoral head component to articulate over a range of motion.

Acetabular orthopaedic prosthesis and method

A kit for use in arthroplasty. The kit including a shell which has a shell locking section. The kit further including a liner adapted to be inserted into the shell. The liner includes an inner surface and an outer surface, wherein the inner surface is generally concave. The outer surface is adapted to engage the shell, and includes a liner locking section and a curved section. The curved section has a radius. The shell locking section and the liner locking section are adapted to engage one another. The shell locking section and the liner locking section are self-locking tapers. The curved section extends tangentially from the liner locking section at a first transition point.

Self-centering, anti-seizing acetabular liner

Reciprocating rasps for the surgical preparation of the bone prior to the implantation of a glenoid or acetabular component with complex geometry are disclosed. Surgical methods for the use of such reciprocating rasps are also disclosed.

Reciprocating rasps for use in an orthopaedic surgical procedure

A liner adapted for insertion into an acetabular shell for use in hip arthroplasty. The liner includes a concave inner surface adapted to engage a femoral head. The liner also includes an outer surface adapted to engage the acetabular shell and a rim that extends between the inner surface and the outer surface. The outer surface includes a locking section extending from the rim, a composite-curved section extending from the locking section at a first transition point, and a dome section extending from the composite-curved section, wherein at the first transition point, the composite-curved section is tangential to the locking section.

A prosthetic component assembly, such as an acetabular cup, includes a shell, a bearing positioner and a bearing. The shell and bearing positioner are configured to facilitate orienting the bearing positioner in multiple orientations relative to the shell and for securing the bearing positioner in a selected orientation of the multiple orientations relative to the shell. The bearing is configured to be received in the bearing positioner at multiple rotational orientations for optimal joint biomechanics. The bearing positioner is selected from among a plurality of lateralized positioners to accommodate the joint anatomy.

Acetabular prosthesis having an orientable face

Self centering, anti-seizing acetabular liner

Reciprocating rasps for the surgical preparation of the bone prior to the implantation of a glenoid or acetabular component with complex geometry are disclosed. Surgical methods for the use of such reciprocating rasps are also disclosed. A reciprocating rasp for use in the surgical preparation of an acetabulum includes a shaft having a first end configured to be secured in a chuck of a reciprocating tool, and a cutting head secured to a second end of the shaft. The cutting head includes a cutting surface having a plurality of cutting teeth arranged in a geometry that corresponds with a geometry of the acetabular component, and an alignment guide that is devoid of cutting teeth and configured to cooperate with a complementary alignment guide of an acetabular trial instrument when the cutting head is secured to the second end of the shaft.

An extraction device for removing a liner from an acetabular cup is provided. The extraction device includes a body and an actuator. The actuator is operably connected to the body. The extraction device also includes a jaw for cooperation with the liner. The jaw includes a portion of the jaw for penetrating into the liner. The jaw is operably connected to the actuator. The actuator is adapted to cooperate with the jaw to provide a first position for the jaw spaced from the liner and a second position for the jaw in contact with the liner.

Expandable acetabular liner extraction device, cup assembly and associated method

An extraction device for removing a liner from an acetabular cup is provided. The extraction device includes a jaw and a handle. The jaw is for cooperation with the liner and including a portion of the jaw for penetrating into the liner. The handle is operably associated with the jaw and is adapted for gripping the extraction device.

Acetabular liner extraction device, kit and associated method

A modular glenoid assembly is provided for attachment to a glenoid surface of a scapula. The modular glenoid assembly includes a base adapted to couple with the glenoid surface and a bearing insert. The base includes a lip that defines a channel. The bearing insert includes a bearing surface adapted to engage a head portion of a humeral component and a tab. The tab is formed to be received within the channel and engage the lip when the insert is moved in a superior direction into position against the base.

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Warsaw, IN, United States of America

James Alan Caywood