Combination surgical trocar cannula and rake assembly

Details Combination surgical trocar cannula and rake assembly Combination surgical trocar cannula and rake assembly

1991-02-19

1993-07-06

Thaler, Michael H.

Surgery

Instruments

Forceps

A61B 1728

Patent

active

052249549

ABSTRACT:
A combination surgical trocar cannula and rake assembly is provided. The rake has radially extending tip elements which protrude out an open end of a trocar housing in response to relative longitudinal telescopic manipulation between the housing and the rake mandrel. Upon telescopic expansion between the mandrel and the housing, the rake elements extend radially outwardly of the housing, and sequential telescopic manipulation between the housing and the mandrel, alone or in combination with rotational movement therebetween enable the rake tip elements to grasp a solid element, such as a portion of a bladder, or the like, for movements during surgery performed through an endoscopic trocar. A fluid passageway is defined between the cannula and the rake mandrel to permit introduction of fluid during surgery while the rake is within the cannula, or, alternatively, to provide a vacuum passageway.

REFERENCES:
patent: 2670519 (1954-03-01), Recklitis
patent: 4393872 (1983-07-01), Reznik et al.
patent: 4655219 (1987-04-01), Petruzzi
patent: 4994079 (1991-02-01), Genese et al.

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