Surgery – Truss – Pad
Patent
1986-02-03
1987-07-28
Howell, Kyle L.
Surgery
Truss
Pad
A61B 1000
Patent
active
046826068
ABSTRACT:
A method and apparatus for localizing and excising masses which are not palpable in human tissue. A surgical needle is inserted into a located mass and encircled by a cork screw device which is twisted around the mass until the tip of the worm is just beyond the furthest side of the mass from the operator. Subsequently, the handle of the cork screw device is removed and replaced with a guiding extension rod which is used to direct the surgeon as to the depth of the mass in the patient's tissue. A cutting instrument having an inner cylinder and a hollow outer barrel attached to cutting jaws with knife edges is inserted over one end of the extension rod, with the jaws in an open position, and twisted around the worm of the cork screw into the patient's tissue. The cutting jaws of the instrument are opened by pushing finger flanges away from the surgeon causing the cutting jaws to pivot outwardly into an open position. When positioned, the cutting edges are closed by pulling the finger flanges toward the surgeon whereby the hinges press against one end of the inner cylinder causing the jaws to pivot inwardly, to close the cutting jaws and cut by means of the knife edges through the tissue around the mass. At the completion of the excision of the mass, the cylinder is removed with the cutting jaws in a closed position along with the biopsy mass, the cork screw worm and the extension rod.
REFERENCES:
patent: 1867624 (1932-07-01), Hoffman
patent: 2031682 (1936-02-01), Wappler et al.
patent: 2919692 (1960-01-01), Ackermann
patent: 3147749 (1964-09-01), Marsh
patent: 3628522 (1971-12-01), Kato
patent: 3943916 (1976-03-01), Vadas
patent: 4011872 (1977-03-01), Komiya
patent: 4200111 (1980-04-01), Harris
patent: 4314565 (1982-02-01), Lee
"New Biopsy Instruments", Aksenova, Biomed. Eng., 1980.
Hindenburg Max F.
Howell Kyle L.
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