Abstract: A modular cover for a combination light source and ventilator system is disclosed. The modular cover includes a grill, a light-transmissive lens and an optionally detachable trimplate for mounting beneath the light source and ventilator system installed in a ceiling. The trimplate is releasably engagable with the grill for covering a greater portion of the ceiling in the event a sizing error is made during installation of the light source and ventilator system. Preferably, the lens is releasably engagable with the grill for changing of the light source and cleaning of the lens.

Abstract: Trocar assembly embodiments are disclosed that include a trocar tube and a housing defining a chamber adjoining a proximal end portion of the trocar tube. An elastomeric seal member is positioned within the chamber for sealing the chamber as an elongate instrument passes through an opening formed in the seal member. A seal/protector assembly is positioned in the chamber proximally of the seal member in facing relationship to the seal member. The protector assembly includes at least two axially aligned protector members, each of which has an annular collar portion and at least one leaf portion formed integrally with the collar portion so as to form a living hinge portion. The leaf portions define an opening therethrough in axial alignment with the opening in the seal member.