# US 2014/0156025 A1 · Control system and method for a prosthetic knee

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- Number: US 2014/0156025 A1
- Document ID: US20140156025A1
- Status: Published application
- Kind: A1
- Application number: 14/081,965
- Filed: 2013-11-15
- Published: 2014-06-05
- Earliest claimed: 2004-03-10
- Assignees: Ossur Hf
- Applicants: OSSUR hf
- Inventors: Charles R. Bisbee, III; Scott B. Elliott; Magnus Oddsson
- Web page: https://patentgrep.com/patent/US20140156025A1

## CPC

- A61F 2/70: electrical
- A61F 2/64: Knee joints
- A61F 2002/5003: {having damping means, e.g. shock absorbers}
- A61F 2002/5004: {operated by electro- or magnetorheological fluids}
- A61F 2002/5033: {for adjusting damping}
- A61F 2002/6863: {magnetic}
- A61F 2002/704: {computer-controlled, e.g. robotic control}
- A61F 2002/705: {Electromagnetic data transfer}
- A61F 2002/7625: {for measuring angular position}
- A61F 2002/7635: {for measuring force, pressure or mechanical tension}
- A61F 2002/764: {for measuring acceleration}
- A61F 2250/0034: differing in viscosity
- A61F: FILTERS IMPLANTABLE INTO BLOOD VESSELS; PROSTHESES; DEVICES PROVIDING PATENCY TO, OR PREVENTING COLLAPSING OF, TUBULAR STRUCTURES OF THE BODY, e.g. STENTS; ORTHOPAEDIC, NURSING OR CONTRACEPTIVE DEVICES; FOMENTATION; TREATMENT OR PROTECTION OF EYES OR EARS; BANDAGES, DRESSINGS OR ABSORBENT PADS; FIRST-AID KITS (dental prosthetics A61C)

## Abstract

A prosthetic or orthotic system including a magnetorheological (MR) damper. The MR damper may be configured to operate in shear mode. In one embodiment, the MR damper includes a rotary MR damper. A controller is configured to operate the damper. A mobile computing device may be adapted to intermittently communicate configuration parameters to the controller. A method of configuring a prosthetic or orthotic system is also disclosed.

## Claims

### Claim 1

A prosthetic knee system, comprising:
a magnetorheological damper operating in shear mode;
a controller configured to operate the damper; and
a mobile computing device adapted to intermittently communicate configuration parameters to the controller.