Gas-sealed instruments for use in laparoscopic surgery

Details Gas-sealed instruments for use in laparoscopic surgery Gas-sealed instruments for use in laparoscopic surgery

1993-03-04

1995-07-11

Jackson, Gary

Surgery

Instruments

Suture, ligature, elastic band or clip applier

606139, 606141, A61B 1704

Patent

active

054316677

ABSTRACT:
An gas-sealed instrument for use in laparoscopic procedures in a gas-insufflated body cavity. The instrument comprises a static portion, a moving portion, and a flexible seal for preventing gas from escaping from the body cavity through the static portion. The static portion includes a handle, and an elongate outer tube having a bore, a proximal portion attached to the handle, and a distal portion adapted for inserting into the body cavity. The moving portion includes an operating lever pivotally mounted in the handle, and an elongate operating rod mounted in the bore of the elongate outer tube, and sliding axially relative thereto in response to the operating lever. The flexible seal includes an outer portion attached to the static portion, an inner portion disposed about part of the moving portion, and a flexible mid portion between the outer portion and the inner portion. A rigid seal may be substituted for the flexible seal.

REFERENCES:
patent: 3777538 (1973-12-01), Weatherly et al.
patent: 3882854 (1975-05-01), Hulka et al.
patent: 4027510 (1977-06-01), Hiltebrandt
patent: 4550715 (1985-11-01), Santangelo et al.
patent: 4944443 (1990-07-01), Oddsen et al.
patent: 5100420 (1992-03-01), Green et al.
patent: 5171247 (1992-12-01), Hughett et al.

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