Valve assembly
A valve assembly for the sealed reception of an elongated object is provided. The assembly includes a valve body defining at least one opening configured and dimensioned to permit entry of an elongated object and defining a central longitudinal axis, and an elongated seal member having a resilient sealing structure and defining an aperture in general alignment with the opening of the valve body whereby the aperture is configured and dimensioned such that upon insertion of the object into the aperture, the resilient sealing structure resiliently engages the outer surface of the object in a tight manner. The sealing structure includes a plurality of elongated bristle members attached to the seal member. The bristle members are positioned to engage the elongated object upon at least partial insertion of the elongated object into the valve body. Each bristle member is adapted to be displaced relative to the longitudinal axis to facilitate expansion of the aperture of the seal member upon entry of the elongated object therein.
1. A surgical valve assembly for sealed reception of an elongated object, comprising:
a valve body having at least one opening configured and dimensioned to permit entry of an elongated object and defining a central longitudinal axis, the valve body including an internal recess;
a seal member disposed within the internal recess of the valve body, the seal member including at least one substrate and a plurality of flexible bristle members extending radially inwardly relative to the at least one substrate, the bristle members being arranged to define an aperture through the seal member for permitting passage of the elongated object therethrough in substantially fluid tight relation therewith, the bristle members being further arranged to form a taper to facilitate insertion of the elongated object, each bristle member being adapted to be displaced relative to the longitudinal axis to facilitate expansion of the aperture of the seal member upon entry of the elongated object therein; and
an access member extending from the valve body, the access member dimensioned for positioning within body tissue and adapted to provide a path for passage of the elongated object.
2. The surgical valve assembly of claim 1 , wherein the valve body is detachably connected to the access member.
3. The surgical valve assembly of claim 1 , further comprising a housing at a proximal end of the access member, the housing being detachably connected to the valve body.
4. The surgical valve assembly of claim 2 , further comprising a housing seal disposed in the housing, for sealing the valve assembly in the absence of an elongated object inserted into the valve assembly.
5. The surgical valve assembly of claim 3 , further comprising a stabilizing plate for supporting the housing seal during introduction and withdrawal of an elongated object.