초록

A molded one-piece, self-sealing gasket maintains its seal at all times including during insertion of a tube, such as a catheter, as well as after the tube is withdrawn.

대표청구항 ▼

A self-sealing gasket assembly to permit a tube to be inserted into or withdrawn from a housing while maintaining the interior of the housing under seal comprising: a one-piece disc-shaped gasket having an outer sealing portion, an inner sealing portion and a peripheral sidewall portion connecting t

A self-sealing gasket assembly to permit a tube to be inserted into or withdrawn from a housing while maintaining the interior of the housing under seal comprising: a one-piece disc-shaped gasket having an outer sealing portion, an inner sealing portion and a peripheral sidewall portion connecting the inner and outer sealing portions, the inner, outer and sidewall portions being constructed and arranged so that the inner and outer sealing portions are spaced from each other; an aperture formed in the outer sealing member; means defining at least one slit in the inner sealing portion of the member; the inner portion of the gasket having a shoulder formed about its periphery whereby the more central region of the inner sealing member defines an inwardly-extending central plug portion, said slit being formed within the plug portion; a housing to receive the sealing member, the housing including an inner bore and an outer bore, the outer bore being larger than the inner bore and defining a shoulder at the juncture of the inner bore and the outer bore, the shoulder in the housing being constructed and arranged to receive the shoulder formed about the periphery of the inner sealing portion of the gasket and to peripherally constrain said plug portion thereby to provide support for said plug portion and the periphery of the gasket; and means for securing the periphery of the gasket against the shoulder of the housing.