Surgery – Instruments – Light application
Patent
1992-09-29
1994-05-17
Pellegrino, Stephen C.
Surgery
Instruments
Light application
606 14, 606 16, 606170, A61B 1736
Patent
active
053123999
ABSTRACT:
A resectoscope and a method of use for removing organic tissue, e.g., the prostate gland, from the body of a living being. The resectoscope includes an elongated member having a distal end adapted to be introduced into the body of the being at the situs of organic tissue to be removed via a tubular sheath. The resectoscope includes a laser for producing a laser beam adjacent the distal end of the elongated member to penetrate several millimeters through the surface of the tissue to coagulate. A rotatable cutter, e.g., a pair of angled offset planar blades, is disposed at the distal end of the elongated member and is arranged to be rotated at a high rate of speed by an associated drive assembly to cut the coagulated tissue. A lumen is provided to carry an irrigation liquid to the situs of the tissue. A suction lumen is provided to carry the tissue removed by the cutter so that it can be retrieved for histological examination. A viewing system is also provided and extends through the resectoscope in order to enable the operator to view the lasing and cutting of the tissue.
REFERENCES:
patent: 4469098 (1984-09-01), Davi
patent: 4631052 (1986-12-01), Kensey
patent: 4811735 (1989-03-01), Nash et al.
patent: 4955882 (1990-09-01), Hakky
Hakky Said I.
Hudson Perry B.
Peffley Michael
Pellegrino Stephen C.
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