Polyp retrieval method and associated instrument assembly

Details Polyp retrieval method and associated instrument assembly Polyp retrieval method and associated instrument assembly

1993-07-07

1995-06-13

Pellegrino, Stephen C.

Surgery

Instruments

Means for removing tonsils, adenoids or polyps

606110, 606127, A61B 1900

Patent

active

054238307

ABSTRACT:
A method for removing a polyp from inside a patient, comprises the steps of inserting an endoscopic insertion member into a patient, ejecting a cauterization loop from the insertion member, and maneuvering the insertion member and the cauterization loop from outside the patient to place the cauterization loop over a polyp inside the patient. A web member is ejected also from the endoscopic insertion member and is opened from a collapsed configuration to a substantially cup shaped opened configuration having a concave inner surface. The endoscope insertion member and the opened web member are maniipulated from outside the patient to juxtapose the concave inner surface of the web with the polyp, whereupon suction is applied to the web member to form a negative pressure zone between the web member and the polyp, thereby attaching the web member to the polyp in a vacuum seal. Then electrical current is conducted to the cauterization loop to sever the polyp from the patient. The web entrains the severed polyp for removal from the patient.

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patent: 5215521 (1993-06-01), Cochran et al.
patent: 5234439 (1993-08-01), Wilk et al.

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