WATER-TIGHT KNEE PROSTHESIS
Patent Information
- Authority / Receiving Office
- DE · DE
- Patent Type
- Patents
- Current Assignee / Owner
- OSSUR ICELAND EHF
- Filing Date
- 2022-03-02
- Publication Date
- 2026-07-08
AI Technical Summary
Conventional prosthetic knee braking systems, such as dry friction brakes, viscous torque brakes, and magnetorheological brakes, suffer from issues like unreliable damping performance, hydraulic fluid leakage, seal deterioration, and MR fluid decomposition, leading to safety concerns and high maintenance costs.
A waterproof prosthetic knee design featuring a magnetorheological actuated braking system with a waterproof cover, removable cosmetic cover, and a waterproof cover assembly that includes seals to protect internal components, ensuring the system remains functional in wet conditions.
The design provides a reliable and safe prosthetic knee that simulates natural knee motion, is comfortable for amputees, and reduces maintenance needs by preventing fluid leakage and seal deterioration, maintaining functionality in up to four meters of water for over an hour.