Patent ID: 11896502
Assignee: OSSUR ICELAND EHF
Field: Medical technology (Instruments)
Classification: CPC A | IPC A

Claim 14:
15. A prosthetic knee comprising:
a controller;
a hydraulic unit pivotally connected to the controller, the hydraulic unit including:
a hydraulic cylinder having upper and lower hydraulic compartments;
a brake hydraulic cylinder having first and second compartments; and
a flow system fluidly connecting the hydraulic cylinder and the brake cylinder; and
a shell pivotally connected to the hydraulic unit and arranged to press against the brake hydraulic cylinder;
wherein the brake hydraulic cylinder includes a block valve in a first component of the brake hydraulic cylinder and a brake-initiating valve in a second component of the brake hydraulic cylinder, each of the block valve and the brake-initiating valve biased directly against an adjusting valve located between the first and second compartments;
wherein the shell has an adjusting screw pivotally connected to the brake-initiating valve to urge the brake initiating valve against the adjusting valve.