Intravenous catheter with built-in cutting tip and method for ma

Details Intravenous catheter with built-in cutting tip and method for ma Intravenous catheter with built-in cutting tip and method for ma

1990-10-05

1992-03-03

Yasko, John D.

Surgery

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

Treating material introduced into or removed from body...

604272, 606225, A61M 500

Patent

active

050928481

ABSTRACT:
An intravenous catheter includes a tubular member made from a shrinkable material that has a built-in cutting tip located at its distal end. The cutting tip is adapted to cut through tissue and create an opening in a blood vessel of a patient that is the same diameter as the outer diameter of the tubular member. The tubular member is shrinkably affixed to at least a portion of the cutting tip to prevent removal of the cutting tip during usage or insertion. Another embodiment of the intravenous catheter includes a cutting tip disposed near the distal end of a tubular member tube and having a middle portion formed from a shrinkable material surrounding both the cutting tip and tubular member. The middle portion keeps the cutting tip and tubular member together and creates an integrated unit having a smooth outer surface and a continuous outer diameter throughout.

REFERENCES:
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patent: 4431426 (1984-02-01), Groshong
patent: 4496353 (1985-01-01), Overland et al.
patent: 4664423 (1987-05-01), Rowley

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