Device for forming an inserting hole and method of using and mak

Details Device for forming an inserting hole and method of using and mak Device for forming an inserting hole and method of using and mak

1993-05-28

1994-01-25

Thaler, Michael H.

Surgery

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

Treating material introduced into or removed from body...

604174, 606185, 606191, A61B 1734

Patent

active

052812049

ABSTRACT:
A device for forming an inserting hole comprising at least two tubes having different outer diameters, and at least one of a guide wire and a sticking needle. A largest diameter tube has at its thick-walled end at least one longitudinal and approximately linear tearing line. The largest diameter tube, after being inserted into the body, can be torn using the tearing line and fixed to the skin of a patient by sewing a folded portion of the tube on the skin. The tube is not moved by the breathing or pressure since it is fixed to the skin. When the tearing line is formed by an ultrasonic cutter, width of the tearing line can be made narrow thereby preventing adhesion of bacteria to a cut portion and unexpected opening of the tearing line in the body.

REFERENCES:
patent: Re31855 (1985-03-01), Osborne
patent: 4166469 (1979-09-01), Littleford
patent: 4306562 (1981-12-01), Osborne
patent: 4776846 (1988-10-01), Wells
patent: 4813929 (1989-03-01), Semrad
patent: 4969875 (1990-11-01), Ichikawa

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