Endoscope having X-ray non-transmitting material

Details Endoscope having X-ray non-transmitting material Endoscope having X-ray non-transmitting material

1989-10-03

1990-08-07

Grieb, William H.

Surgery

Truss

Perineal

128658, A61B 106

Patent

active

049458949

ABSTRACT:
An endoscope has an insertion portion to be inserted in a body cavity. Image guide fibers, light guide fibers, and an objective lens are arranged in an outer tube of the insertion portion. An X-ray non-tranmitting material is mixed in an adhesive for adhering the objective lens arranged at the distal ends of the image guide fibers, and/or a coating agent for covering the image guide fibers and the light guide fibers. When the insertion portion is inserted in a body cavity, the presence of the X-ray non-transmitting material can be confirmed by an external X-ray imaging operation, and the position of the insertion portion of the endoscope can be confirmed.

REFERENCES:
patent: 3608555 (1971-09-01), Greyson
patent: 4027659 (1977-06-01), Slingluff
patent: 4657024 (1987-04-01), Coneys
patent: 4790295 (1988-12-01), Tashiro

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