Patent ID: 8343233
Filing Date: 2013-01-01
Classification: A61F

Abstract:
1. A pressure-control system for a prosthetic hard socket, the pressure-control system comprising: a prosthetic socket comprising a wall having an outer surface and an interior surface defining a well for receiving a residual limb, and said wall having a hole extending from said outer surface to said interior surface and having a generally cylindrical hole wall; a valve system comprising: wherein the valve system further comprising at least one sound-dampening and filtering pad behind the elastomeric umbrella valve member and extending across the bore of said base between the housing and the base, and at least one sound-dampening and filtering pad in front of the elastomeric umbrella valve member and extending across the housing bore in the front portion of the housing bore, wherein the housing further comprises a retaining ring connected to the front end of the housing adapted to retain said at least one pad in front of the elastomeric umbrella valve member inside said front portion of the housing bore, wherein the retaining ring has an opening for air flow exiting the housing; and wherein the valve system comprises no spring.