Resectoscope

Details Resectoscope Resectoscope

1987-09-28

1988-10-11

Grieb, William H.

Surgery

Truss

Pad

128 7, A61B 1736

Patent

active

047763361

ABSTRACT:
A resectoscope comprising a sheath body having an elongated hollow sheath to be inserted into a urethra, a handle having a guide part for guiding an optical sighting tube and a slider sliding in the axial direction along the sheath body. An optical sighting tube for observation is inserted through the guide pipe of the handle and is inserted within the sheath. An electrode inserting hole is provided in the slider and opens on the front surface of the slider and an electrode device removably inserted and connected in the electrode inserting hole, is inserted within the sheath. The electrode has a tip electrode which projects out of and retracts into the sheath by means of the movement of the slider in the axial direction. A step is formed between the guide pipe and the electrode inserting hole on the front surface of the slider, the step having the step surface connecting the two surfaces forming the step. The step surface is arcuate in the direction around an axis parallel with the axial direction of the electrode device.

REFERENCES:
patent: 4132227 (1979-01-01), Ibe
patent: 4149538 (1979-04-01), Mrava et al.
patent: 4423727 (1984-01-01), Widran et al.
patent: 4538610 (1985-09-01), Kubota
patent: 4643187 (1987-02-01), Okada
patent: 4726370 (1988-02-01), Karasawa et al.

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