Smith & Nephew Knee Prosthesis Insert, Improved PCL Stability
Summary
USPTO published patent application US20260096894A1 for Smith & Nephew's knee prosthesis insert featuring a medial compartment with concave surface and posterior sulcus, and a lateral compartment with convex surface, designed to improve PCL stability over existing designs.
What changed
USPTO published patent application US20260096894A1 for Smith & Nephew's knee prosthesis insert. The application claims an insert with a medial compartment featuring a concave top surface with a more posterior sulcus and increased anterior lip, and a lateral compartment with at least a convex segment. The design is intended to provide improved stability for varying grades of PCL deficiencies and improved lateral posterior translation compared to existing mid-line sulcus designs.
Medical device manufacturers and orthopaedic product developers should review the patent claims for potential freedom-to-operate concerns or licensing opportunities. Competitors developing knee prosthesis inserts with similar PCL stabilization features may face patent infringement risk once the application proceeds to grant.
What to do next
- Monitor patent prosecution for grant or rejection
- Review claims for competitive impact on existing prosthetic designs
Archived snapshot
Apr 10, 2026GovPing captured this document from the original source. If the source has since changed or been removed, this is the text as it existed at that time.
INSERT FOR USE IN A KNEE PROSTHESIS
Application US20260096894A1 Kind: A1 Apr 09, 2026
Assignee
Smith & Nephew, Inc.
Inventors
Christopher B. Carr, Nathaniel M. Lenz
Abstract
An insert for use in a knee prosthesis is disclosed. In one embodiment, the insert includes a medial compartment and a lateral compartment. The medial compartment includes a top surface having a concave surface or curve with a more posterior sulcus and increased anterior lip. The lateral compartment includes a top surface having at least a segment or portion with a convex surface or curve. Thus arranged, the insert is arranged and configured to provide improved stability for varying grades of PCL deficiencies compared to existing inserts that have a mid-line sulcus and lateral convexity. In addition, the insert provides improved lateral posterior translation compared to existing designs with a concave or flat lateral articulation that lack a lateral posterior convexity.
CPC Classifications
A61F 2/3886 A61F 2/3859 A61F 2/389
Filing Date
2025-12-02
Application No.
19405708
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