Surgery – Means for introducing or removing material from body for... – Treating material introduced into or removed from body...
Patent
1993-04-02
1994-04-05
Wilson, John J.
Surgery
Means for introducing or removing material from body for...
Treating material introduced into or removed from body...
604164, 604264, A61M 5178
Patent
active
053000366
ABSTRACT:
An improved trocar is provided which includes converters for adapting to different size surgical instruments while maintaining sealing. The invention also includes an improved trocar tube body seal design which accepts and accommodates surgical tool angulation while still maintaining sealing. Still further, the invention provides a trocar obturator with a snap-fit joint which permits the forward portion of the obturator to be detached from the trocar body and separately used with the trocar tube subassembly. With this option, a latch mechanism is configured opposite to a converter to retain the obturator fixed with the trocar tube subassembly.
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patent: 4654030 (1987-03-01), Moll et al.
patent: 4723550 (1988-02-01), Bales et al.
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Sakata, et al.; "Usefulness of a Preoperative Indwelling Endoscopic Nasobiliary Drainage Tube and Intraoperative CUSA in Laparoscopic Cholecystectomy"; Surgical Laparoscopy & Endoscopy, vol. 1, No. 2, 1991, at p. 130.
United States Surgical Corporation; copy of a 1991 catalog page showing a removable converter produced by this company.
Chin Albert K.
Hlavka Edwin J.
Kovac Tim
Mueller Richard L.
Origin Medsystems Inc.
Wilson John J.
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