Anti-arcing resectoscope loop

Surgery – Truss – Pad

Patent

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Details

A61B 1732

Patent

active

039904563

ABSTRACT:
A cutting loop assembly for a resectoscope, which is used in performing transurethral operations, has spaced arms comprising insulated electrically conductive wires extending from a stem and connected at their distal ends by a depending bare wire loop. The arms are extended in length at their distal ends sufficiently that arcing between the upper ends of the depending loop and the adjacent end of the metallic stem of the telescope which forms part of the resectoscope cannot take place at the current and voltage being used. The loop is also inclined from its upper ends to its bottom in a direction proximate to the resectoscope so that its bottom part will cooperate with the lower inner wall of the insulated beak of the sheath of the resectoscope as the cutting loop assembly is moved to rest position, in order to complete a resection which is being performed.

REFERENCES:
patent: 2448741 (1948-09-01), Scott et al.
patent: 3294085 (1966-12-01), Wallace
patent: 3752159 (1973-08-01), Wappler
patent: 3835842 (1974-09-01), Iglesias
patent: 3939839 (1976-02-01), Curtiss

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