Over-the-needle catheter

Details Over-the-needle catheter Over-the-needle catheter

1994-06-06

1996-07-02

Hirsch, Paul J.

Surgery

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

Treating material introduced into or removed from body...

604 44, A61M 2506

Patent

active

055317014

ABSTRACT:
A catheter has an abutment member formed proximate the distal end thereof. The abutment member abuts a complementary abutment surface formed upon an introducer so as to prevent collapsing of the catheter body during the insertion process. The abutment member preferably comprises an annular abutment shoulder, which reduces the diameter of the lumen of the catheter. An opening formed in the catheter body proximate the tip of the catheter facilitates fluid flow through the lumen of the catheter in the event that the reduced diameter portion of the lumen becomes obstructed. The tip of the catheter preferably comprises a rigid material, so as to assure positive locking action of the abutment member of the catheter with the abutment surface of the introducer during the insertion process.

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