Support assembly for a cannula and the like

Details Support assembly for a cannula and the like Support assembly for a cannula and the like

1981-12-02

1983-09-13

Pellegrino, Stephen C.

Surgery

Means for introducing or removing material from body for...

Treating material introduced into or removed from body...

604117, 156294, A61M 500

Patent

active

044039905

ABSTRACT:
An assembly is provided which is attachable to a member, such as a cannula, in a uniformly secure fashion in response to heat. The assembly includes a first portion, which is deformable in the presence of heat and into which the member can be slidably inserted, and a second portion, which is disposed about the first portion in an interference fit so as to exert a force inwardly upon the first portion in the direction of the member therein confined. When the member is heated, the first portion becomes deformable, and the force exerted by the second portion serves to constrict the first portion into a tight conformance fit about the member. The member is thereby secured to the assembly. In the preferred embodiment, the first portion is made of an autoclavable thermoplastic polyester whose bonding characteristics are enhanced by the addition of a nonautoclavable copolyester of superior bonding strength. The second portion is preferably an autoclavable elastomer.

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