Instrument access device

摘要

An instrument access device (500) comprises a distal O-ring (11) for insertion into a wound interior, a proximal member for location externally of a wound opening and a sleeve (12) extending in two layers between the distal O-ring (11) and the proximal member. The proximal member comprises an inner proximal ring member (25) and an outer proximal ring member (24) between which the sleeve (12) is led. A seal housing (300) is mounted to the inner proximal ring member (25). A gelatinous elastomeric seal (302) with a pinhole opening (303) therethrough is received in the housing (300). An instrument may be extended through the seal (302) to access the wound interior through the retracted wound opening in a sealed manner.

主权项

1. An instrument access device, comprising:
a retractor assembly including
a distal member,a proximal assembly including a seal, anda retracting sleeve extending at least from the distal member to the proximal assembly; and an instrument receiving assembly configured to engage the seal and sealably couple to the proximal assembly, the instrument receiving assembly being configured to extend into an access opening of the retracting sleeve, and the instrument receiving assembly including:
an instrument seal having an open configuration when an instrument is received therein, and a closed configuration when no instrument is received therein, the instrument seal including a valve member; andan instrument working channel extending distal the instrument seal, the instrument seal extending across a proximal end of the instrument working channel in the closed configuration, wherein the instrument working channel includes a tubular portion configured to extend into the access opening of the retracting sleeve and at least from the proximal assembly to a position longitudinally aligned with the distal member.