Catheter introducer

Details Catheter introducer Catheter introducer

1993-09-09

1994-08-02

Hirsch, Paul J.

Surgery

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

Treating material introduced into or removed from body...

604165, A61M 2501

Patent

active

053341570

ABSTRACT:
A catheter introducer comprises an elongated sheath having a bore to receive a percutaneous needle therethrough. The proximal end of the sheath is secured to a head element having angularly spaced wing portions and defining two opposed parallel planar surfaces. The percutaneous needle has a transversely disposed U-shaped element secured to its proximal end which is snugly engagable with the planer sidewalls of the head portion and is secured thereto through a rib and slot interengagement of the arms with the planar surfaces. The sheath and the entire head portion are provided with diametrically opposed scorelines to permit the ready separation of the introducer through the application of a separating force to the wing portions. Such separation cannot, however, occur so long as the needle is fully inserted within the introducer due to the restraining action of the arms of the U-shaped element.

REFERENCES:
patent: 3788326 (1974-01-01), Jacobs
patent: 4362156 (1982-12-01), Feller, Jr. et al.
patent: 4445893 (1984-05-01), Bodicky
patent: 4983163 (1991-01-01), Mourehead
patent: 5000745 (1991-03-01), Guest et al.
patent: 5098392 (1992-03-01), Fleischhacker et al.
patent: 5141497 (1992-08-01), Erskine
patent: 5221263 (1993-06-01), Sinko et al.

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