James W Colvin

US Patent:

7947085, May 24, 2011

Filed:

Jun 12, 2006

Appl. No.:

11/423632

Inventors:

Wilbur A. Haines - Indianapolis IN, US
James M. Colvin - Columbus OH, US
Michael L. Haynes - Columbus OH, US
Christopher T. Kelley - Grandview Heights OH, US
Mark W. Ford - Jamestown OH, US
Mark W. Groves - Columbus OH, US
Jeffrey A. Denune - Galloway OH, US

Assignee:

The Ohio Williow Wood Company - Mount Sterling OH

International Classification:

A61F 2/48
A61F 2/78
A61F 2/80
A61F 2/60

US Classification:

623 24, 623 33, 623 34, 623 35, 623 36

Abstract:

Evacuation devices for evacuating the socket of a prosthetic limb, and prosthetic limb systems employing such vacuum devices. The evacuation devices each preferably include at least an electrically powered vacuum pump and a power source. Such evacuation devices can be attached at various locations on or in a prosthetic limb. Because the electrically powered pump does not require manual manipulation to create vacuum, it is substantially easier to use than a manual pump. Due to the small size and small power source required by such an electrically powered pump, an evacuation device may be readily incorporated into a prosthesis.