1981-06-17
1984-01-24
Coven, Edward M.
Surgery
Truss
Pad
128305, A61B 1000
Patent
active
044270143
ABSTRACT:
Biopsy forceps for use with a contact endoscope having a body terminating in a distal end comprising a hollow outer tube open at both ends, a hollow inner tube located coaxially within the outer tube, the inner tube being open at its rear end and terminating at its front end in at least one pair of diametrically opposed tongues that extend outwardly beyond the front end of the outer tube and in a direction substantially parallel to the longitudinal axis of the tubes and then bend inwardly at their far end at right angles to the longitudinal axis terminating in a series of teeth to form forceps jaws, the jaws being biased in a direction away from the axis, whereby movement of the tubes in one direction relative to one another causes the tongues of the jaws to slide into the outer tube and the forceps jaws to close and movement in the opposite direction causes the jaws to open, and a control device for axially moving one of the tubes relative to the other to activate the jaws, whereby the endoscope can be inserted all the way through the forceps from its rear end so that the distal end of the endoscope lies against the forceps jaws.
REFERENCES:
patent: 2214985 (1940-09-01), Bachmann
patent: 2670519 (1954-03-01), Recklitis
patent: 3404677 (1968-08-01), Springer
patent: 3967625 (1976-07-01), Yoon
patent: 4005714 (1977-02-01), Hiltebrandt
patent: 4054143 (1977-08-01), Bauer
patent: 4080961 (1978-03-01), Eaton
patent: 4200111 (1980-04-01), Harris
patent: 4257420 (1981-03-01), Terayama
Bel Roger P.
Hascoet Martial E.
Regnier Michel M.
Coven Edward M.
Fukushima Christine A.
Metallisations et Traitements Optiques M.T.O.
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