Medical tube

Details Medical tube Medical tube

1987-04-23

1988-10-11

Truluck, Dalton L.

Surgery

Means for introducing or removing material from body for...

Treating material introduced into or removed from body...

604281, 128 6, A61M 2500

Patent

active

047768444

ABSTRACT:
A medical tube used as an insertion section of a catheter for angiography or of an endoscope. The medical tube has a flexible tube, and an elastic member embedded in the peripheral wall of the tube, for keeping the tube straight. The elastic member is formed of a high-elastic alloy whose transformation temperature at which the alloy transforms in phase from the martensite structure to the austenite structure is set at a temperature lower than that at which the medical tube is used. When the medical tube used as the insertion section of a catheter or endoscope is inserted into a living body, it is prevented from being buckled, or bent easily at the same portion after a long use. The durability of the insertion section is therefore improved, and organs in the living body are in no way damaged when the insertion section is inserted.

REFERENCES:
patent: 1060665 (1913-05-01), Bell
patent: 2583298 (1952-01-01), Kowan
patent: 3890977 (1975-06-01), Wilson
patent: 4427000 (1984-01-01), Ueda
patent: 4543090 (1985-09-01), McCoy
patent: 4601283 (1986-07-01), Chikama
patent: 4676229 (1987-06-01), Krasnicki

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