Depuy Synthes Products, Inc.

Depuy Ireland Unlimited Co.

Depuy (ireland)

Depuy Products, Inc.

Jeffrey A Rybolt

Bryan J Smith

Hengda D Liu

Andrew J Martin

Daren Lloyd Deffenbaugh

Anthony D Zannis

Ryan C Keefer

Stephanie M Wainscott

Matthew Smith

Gerhard J A Drescher

Rajendra K Kasinath

David A B Smith

Stephanie M Deruntz

Derek Hengda Liu

Andrew James Martin

Matthew D Smith

A method for manufacturing a prosthetic component include injection molding a prosthetic component with a polymeric material. The prosthetic component includes a final surface positioned on one side and multiple coring features positioned on an opposite side. The coring features may include multiple ribs and slots. The method further includes machining the prosthetic component to remove the coring features and form a final surface on the opposite side. The prosthetic component may be a femoral component for a prosthetic knee joint.

Injection molded prosthetic component with planarized bone-contacting surfaces

A joint prosthesis system is suitable for cementless fixation. The system includes a metal implant component that has a mounting surface for supporting an insert. The metal implant component includes a solid metal portion and a porous metal portion. The porous metal portion has surfaces with different characteristics, such as roughness, to improve bone fixation, ease removal of the implant component in a revision surgery, reduce soft tissue irritation, improve the strength of a sintered bond between the solid and porous metal portions, or reduce or eliminate the possibility of blood traveling through the porous metal portion into the joint space. A method of making the joint prosthesis is also disclosed. The invention may also be applied to discrete porous metal implant components, such as augment.

Prosthesis with surfaces having different textures and method of making the prosthesis

A joint prosthesis system is suitable for cementless fixation. The system has two metal implant components and a bearing. One of the metal implant components has an articulation surface for articulation with the bearing. The other metal implant component has a mounting surface for supporting the bearing. One of the metal implant components includes a solid metal portion and a porous metal portion. The porous metal portion has surfaces with different characteristics, such as roughness, to improve bone fixation, ease removal of the implant component in a revision surgery, reduce soft tissue irritation, improve the strength of a sintered bond between the solid and porous metal portions, or reduce or eliminate the possibility of blood traveling through the porous metal portion into the joint space. A method of making the joint prosthesis is also disclosed. The invention may also be applied to discrete porous metal implant components, such as augment.

Provided are methods for processing a green body that includes compacted metal powder, comprising impacting the green body with a particulate material for a time and under conditions effective to displace a portion of the metal powder from the green body. The present methods can be used to prepare green bodies that have 'roughened' surfaces and that can be used to make orthopedic implants displaying low movement relative to bone when installed in situ, which corresponds to higher stability upon implantation and decreases the time required for biological fixation of the implant. Also provided are implants comprising a metallic matrix, and methods comprising surgically installing an implant prepared from a 'surface roughened' green body in accordance with the present invention.

Implants with roughened surfaces

An orthopaedic prosthesis for cementless fixation has a solid metal base and porous metal pegs extending out from the base. The pegs are mechanically, rather than metallurgically, fixed to the base. A process for making such a prosthesis is also disclosed.

Mechanical assembly of pegs to prosthesis

An acetabular prosthesis system configured to be coupled to a surgically-prepared acetabulum includes an acetabular shell, an augment component, and a fastener configured to couple the acetabular shell and the augment component together.

Acetabular prosthesis system

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Fort Wayne, IN, United States of America

Jeffrey A Rybolt