Seal for trocar assembly

Details Seal for trocar assembly Seal for trocar assembly

1994-02-22

1995-03-28

Maglione, Corrine

Surgery

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

Treating material introduced into or removed from body...

2511493, 604169, 604264, A61M 5178

Patent

active

054012481

ABSTRACT:
An elastomeric seal for a trocar assembly is disclosed. The seal can be used in a trocar device to seal against loss of gas pressure during a laparoscopic surgical procedure when a surgical instrument is inserted therethrough as well as when no instrument is inserted. The preferred one piece seal is cylindrical and has first and second collapsed sections defining generally a curved slit. The elastomeric seal is preferably composed of a silicone rubber. The seal has the advantages of simplicity of manufacture and assembly and the ability to provide an adequate seal against the surface of any surgical instrument inserted through it. Also, the improved seal will require a small amount of force to insert instruments and will resist eversion when instruments are withdrawn.

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