Patent ID: 9161680
Filing Date: 2015-10-20
Classification: A61B,F16K,Y10T

Abstract:
1. A valve assembly for a medical instrument comprising: a housing; a spool comprising a first end, a second end, a longitudinal passageway extending between the first end and the second end, and first and second portions proximate the first and second ends, respectively, wherein the first portion of the spool is configured to be received at least partially within the housing, and wherein an outer surface of the second portion of the spool defines a plurality of positioning features; and a sealing member comprising a longitudinal support member and a plurality of sealing rings extending circumferentially from the support member, wherein each sealing ring is spaced from an adjacent sealing ring a distance along a length of the support member that corresponds to a distance between adjacent positioning features, wherein an inner surface of the support member is configured to engage the outer surface of the spool, and wherein each sealing ring defines an opening such that an inner circumferential surface of each sealing ring is configured to sealingly engage the outer surface of the second portion of the spool proximate a corresponding positioning feature.