Device and method for applying large-diameter ligating loop

Details Device and method for applying large-diameter ligating loop Device and method for applying large-diameter ligating loop

1992-10-09

1994-04-05

Graysay, Tamara L.

Surgery

Instruments

Means for removing tonsils, adenoids or polyps

606144, 2421001, A61B 1700

Patent

active

053000781

ABSTRACT:
A suture applying device comprises an elongate shaft having a length of suture therein. A pre-tied loop suture is held at the distal end of the shaft with a free end of the suture being attached within a handle secured to the proximal end of the shaft. In a first embodiment, a pulley and puller assembly is provided for closing the pre-tied suture loop, where the pulley permits a greater length of suture to be taken in than is traveled by the puller. In a second embodiment, a pair of opposed jaws are slidably mounted within the handle for selectively engaging and gripping the free end of the suture. In this way, an arbitrarily large length of suture may be taken in by pulling on the free end of the suture in successive strokes. The device further includes a sheath slidably disposed on the shaft for protecting the suture during introduction. The sheath automatically retracts when the device is introduced through a trocar sleeve or cannula, thereby exposing the suture loop.

REFERENCES:
patent: 659422 (1900-10-01), Shidler
patent: 2610631 (1952-09-01), Calicchio
patent: 3476115 (1969-11-01), Graeff et al.
patent: 3665926 (1972-05-01), Flores
patent: 3985138 (1976-10-01), Jarvik
patent: 4592355 (1986-06-01), Antebi
patent: 5007914 (1991-04-01), Schweigerling
patent: 5084054 (1992-01-01), Bencini et al.
patent: 5129912 (1992-07-01), Noda et al.

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