Device for bending a medical instrument inserted into the body c

Surgery – Truss – Pad

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Details

128 4, 128328, A61B 1000

Patent

active

042718457

ABSTRACT:
A device for bending a medical instrument inserted into the body cavity having a flexible cylindrical coil formed by winding an elastic thin wire. The flexible cylindrical coil has a coarsely wound portion at one end portion thereof, that is designed by changing configuration or material so that one side of the coarsely wound portion is different in cross sectional area from the other side which is diametrically opposite. When a pulling string directly or indirectly fastened to the coarsely wound portion of the flexible cylindrical coil is operated, the turns of said flexible cylindrical coil are brought closer to each other on the side of the coarsely wound portion greater in torsional strength to thereby bend the one end portion of the flexible cylindrical coil towards the side of the coarsely wound portion.

REFERENCES:
patent: 3452740 (1969-07-01), Muller
patent: 3452742 (1969-07-01), Muller
patent: 3521620 (1970-07-01), Cook
patent: 3613664 (1971-10-01), Willson
patent: 3749085 (1973-07-01), Willson et al.
patent: 3805767 (1974-04-01), Erb
patent: 3964468 (1976-06-01), Schulz
patent: 3973556 (1976-08-01), Fleischhacker et al.
patent: 4020829 (1977-05-01), Willson et al.
patent: 4215703 (1980-08-01), Willson

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