Sheathed endoscope

Details Sheathed endoscope Sheathed endoscope

1990-07-13

1991-09-24

Grieb, William H.

Surgery

Truss

Perineal

A63B 100

Patent

active

050505858

ABSTRACT:
A sheathed endoscope having a flexible insert tube in the form of an elongated cylinder and a distal end portion with a viewing window which is coupled to the distal end of the insert tube. The endoscope includes: a flexible guide tube inserted in the insert tube so as to extend over the entire length of the insert tube with, one end of the guide tube opening to the outside at the distal end portion and the other end of the guide tube opening to the outside at the proximal end of the insert tube. A sheath which is transparent at least partially thereof which is positioned over the surface of the viewing window and the sheath is removably fitted over the insert tube to isolate the insert tube from the external environment. At least one channel tube inserted in the sheath so as to extend over the entire length of the sheath, one end of the channel tube opening to the outside at the distal end portion of the sheath, and the other end of the channel tube being inserted into the guide tube from the distal end thereof and drawn out of the proximal end of the guide tube.

REFERENCES:
patent: 4616631 (1986-10-01), Takahashi
patent: 4646722 (1987-03-01), Silverstein et al.
patent: 4741326 (1988-05-01), Sidall et al.

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