US 9,872,772 B2 · Prosthetic joint

Abstract

A prosthetic joint (100) comprises a first component (110) having a first interface portion (111). The prosthetic joint (100) further comprises a second component (120) having a second interface portion (121) with a textured surface (122) to interface with the first interface portion (111) and form a skeletal joint. The textured surface (122) can include a plurality of concave features (123). Each or the concave features (123) can be configured to compress a lubricant (140) to facilitate hydrodynamic lubrication between the first and second interface portions (111, 121) to minimize wear between the first interface portion (111) and the second interface portion (121) of the prosthetic joint (100).

Claims18

Dependent claims

A prosthetic joint, comprising:

a first component having a first interface portion;
and
a second component having a second interface portion with a textured surface to interface with the first interface portion and form a skeletal joint,
wherein the first interface portion comprises at least one of a metal and a ceramic, and the second interface portion comprises a polymer, and
wherein the textured surface includes a plurality of concave features, each of the concave features being configured to compress a lubricant to facilitate hydrodynamic lubrication during use between the first and second interface portions to minimize wear between the first interface portion and the second interface portion of the prosthetic joint, and wherein each of the concave features has a depth to width aspect ratio of between 0.005 and 0.02.

2 more elements

Dependencies are inferred from the claim text.

Prosthetic joint

Life of this patent

Prosthetic joint

Life of this patent

Abstract

Claims18