Patent · US Active

Air valve for external prosthesis

US9408724B2 · kind B2 · utility

0Cited by

30References

23Claims

0Family size

Assignee

Coyote Design and Manufacturing, Inc. · US

Inventors

Matt Perkins · Twin Falls, US
Travis Dean · Meridian, US

Key dates

Filing date	Oct 16, 2012
Grant date	Aug 9, 2016
Priority date	—
Expiry date	May 24, 2034

Classification

Technology area (CPC A)Human Necessities
CPC primaryA61F2002/805
WIPO fieldMedical technology
WIPO sectorInstruments

Abstract

A valve device regulates the air pressure in the space between a residual limb, or liner-covered limb, and a hard socket of an external prosthesis. A manually-controlled air-outlet and -inlet valve may optionally include an automatic one-way valve (or “expulsion” valve). The manually-controlled valve is opened and closed by twisting a handle, to open a two-way air passageway by slightly separating the handle and base portions, or by aligning bores in the handle and base portions. At least one stop surface limits the amount of relative rotation of the handle and base portions of the valve, so that the user need only rotate the handle a small amount, for example, less than 90 degrees, to affect opening or closing the valve.

Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.