Rigid endoscope with flexible tip

Details Rigid endoscope with flexible tip Rigid endoscope with flexible tip

1987-08-26

1989-02-07

Grieb, William H.

Surgery

Truss

Perineal

A61B 130

Patent

active

048024619

ABSTRACT:
An endoscope provides a tube which is rigid enough along its length to be displaced by axial and rotational translation through open regions. The tip end of the tube is laterally flexible relative to the length of the tube. Wires connected to opposite sides of the flexible tip provide user control of the flexing of the tip. The sufficiently rigid length, flexible tip and dimensions of the tube enable placement of the tip end adjacent to kidney stones lodged in the ureter and calyxes of the kidney. The flexible tip further enables atraumatic use of the device. The tube may be multi-channeled to enable a view of the body canals and target stones in one channel, and to carry laser radiation by means of laser delivering fiber to the stones in another channel. Fiber optics may be employed between channels or within a channel of the tube to aid in the viewing of the pertinent body areas.

REFERENCES:
patent: 1995196 (1935-03-01), Wolf
patent: 4483326 (1984-11-01), Yamaka et al.
patent: 4589404 (1986-05-01), Barath et al.
patent: 4615332 (1986-10-01), Buess et al.
W. B. Allan, "Fiber Optics Theory and Practice", Optical Physics and Engineering, Series Editor William L. Wolfe, Plenus Press, 1973, pp. 148-176.
Denise Grady, "The Artery Zapper", Discover, Dec. 1982, pp. 36-40.
Yoshikatsu Tanahashi, M.D., et al., "Percutaneous Laser Lithotripsy for Renal Calculi", The Use of Laser Beam in Urology 7th Report, 1984, pp. 125-126.
Yoshikatsu Tanahashi, M.D., "Percutaneous Laser Lithotripsy for Renal Calculi", Preprint-Duplicate of 7th Report, pp. 1-5, 1983.
Yoshikatsu Tanahashi, M.D., "Transurethral Disintegration of Urinary Calculi by the Use of Laser Beam", Urology, vol. 10, pp. 30-33 (1981).
Flyer from Biomedical Business International, Tustin, CA, pp. 196-197, Dec., 1983.
Flyer on Karl Storz Endoscope (1987).
Richard Wolfe Medical Instruments Catalog, III.87, pp. D31, D33 (1987).

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