Catheter assembly

Details Catheter assembly Catheter assembly

1992-10-23

1993-08-10

Weiss, John G.

Surgery

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

Treating material introduced into or removed from body...

604256, 2511491, A61M 2500

Patent

active

052344100

ABSTRACT:
The catheter assembly is provided with a conventional catheter which extends from a hub. In addition, a tube or blunt needle is mounted within the hub coaxially of the catheter and is provided with an elastomeric valve over the open end. The elastomeric valve is formed by a pair of rubber sheaths, each of which has a closed end for sealing the tube against a back flow of blood. The sheaths can be pierced by a needle in order to perform a venipuncture while re-sealing upon removal of the needle. The catheter assembly may also be connected with a male luer connector in a manner to push the sheaths over the tube so as to expose the lumen of the catheter to the connector.

REFERENCES:
patent: 4430081 (1984-02-01), Timmermans
patent: 4874377 (1989-10-01), Newgard et al.
patent: 5009391 (1991-04-01), Steigerwald
patent: 5064416 (1991-11-01), Newgard et al.
patent: 5084023 (1992-01-01), Lemieux
patent: 5085645 (1992-02-01), Purdy et al.
patent: 5092846 (1992-03-01), Nishijima et al.
patent: 5092857 (1992-03-01), Fleischhacker

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