Abstract: The present disclosure describes implantable medical devices comprising covers, such as a balloon cover. Such devices can comprise a first layer of a porous polymeric material, such as ePTFE, surrounded by layers of a porous polymeric material having an imbibed elastomer, such as polyurethane. The cover can be used to assist in deployment of an expandable implant, such as a stent-graft, within the body of the patient.

Abstract: An improved medical device reduces the loss of longitudinal length during expansion of a stent-graft from a compressed state to an expanded state. For example, the stent-graft is placed over a cover that provides resistance to expansion of the balloon during inflation, which reduces longitudinal compressing forces exerted on the stent-graft.

Abstract: The present disclosure describes implantable medical devices comprising covers, such as a balloon cover. Such devices can comprise a first layer of a porous polymeric material, such as ePTFE, surrounded by layers of a porous polymeric material having an imbibed elastomer, such as polyurethane. The cover can be used to assist in deployment of an expandable implant, such as a stent-graft, within the body of the patient.

Abstract: An apparatus (10) includes a pressure relief valve (12) for relieving air pressure from a passenger compartment (76) of a vehicle (66). The pressure relief valve (12) enables airflow from the passenger compartment (76) to atmosphere (78). The apparatus (10) also includes a member (14) for reducing noise entering the passenger compartment (76) as a result of a backflow of air through the pressure relief valve (12) from atmosphere (78) to the passenger compartment (76). The member (14) includes structure (112, 114) for attaching the member (14) to the pressure relief valve (12).

Abstract: An apparatus (10) includes a pressure relief valve (12) for relieving air pressure from a passenger compartment (76) of a vehicle (66). The pressure relief valve (12) enables airflow from the passenger compartment (76) to atmosphere (78). The apparatus (10) also includes a member (14) for reducing noise entering the passenger compartment (76) as a result of a backflow of air through the pressure relief valve (12) from atmosphere (78) to the passenger compartment (76). The member (14) includes structure (112, 114) for attaching the member (14) to the pressure relief valve (12).