Catheter with controlled valve

Details Catheter with controlled valve Catheter with controlled valve

1990-02-01

1991-10-01

Yasko, John D.

Surgery

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

Treating material introduced into or removed from body...

604198, 604244, 604205, A61M 5178

Patent

active

050530143

ABSTRACT:
A catheter hub assembly is disclosed wherein the assembly contains a membrane useful in preventing backflow of blood into the flash chamber. The hub assembly contains a membrane opener which operates upon the insertion of a luer locking mechanism into the catheter hub. This membrane opener allows flow of nutritional fluid into the body by causing the opening of the membrane during use of the catheter after removal of the catheter needle.

REFERENCES:
patent: 3585996 (1971-06-01), Reynolds et al.
patent: 4096860 (1978-06-01), McLaughlin
patent: 4177814 (1979-12-01), Knepshield et al.
patent: 4365630 (1982-12-01), McFarlane
patent: 4664654 (1987-05-01), Strauss
patent: 4758225 (1988-07-01), Cox et al.
patent: 4832696 (1989-05-01), Luther et al.
patent: 4834718 (1989-05-01), McDonald
patent: 4842591 (1989-06-01), Luther
patent: 4850961 (1989-07-01), Wanderer et al.
patent: 4874377 (1989-10-01), Newgard et al.
patent: 4917668 (1990-04-01), Haindl
patent: 4917669 (1990-04-01), Bonaldo
patent: 4935010 (1990-06-01), Cox et al.

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