Self venting plug for venous entry unit

Details Self venting plug for venous entry unit Self venting plug for venous entry unit

1977-07-08

1980-03-18

Truluck, Dalton L.

Surgery

Respiratory method or device

Ozone or ion generation

55159, 55523, 734254P, 128348, 128221, P61M 500

Patent

active

041933990

ABSTRACT:
The specification discloses a self venting plug for a venous entry unit which is a porous plastic body adapted to be removably seated in a hollow flashback chamber. The plug comprises an open pored plastic having a pore size on the order of 10-15 microns, and provides a flow path for venting air from the flashback chamber while inhibiting flow of blood from the chamber. The plug may be used, for example, with over-the-needle and through-the-needle catheter units employing piercing needles, and may be used to anchor a stylet for stiffening a catheter to be forwarded into the body.

REFERENCES:
patent: 3055361 (1962-09-01), Ballard
patent: 3220411 (1965-11-01), Czorny
patent: 3715047 (1973-02-01), Sado
patent: 3792703 (1974-02-01), Moorehead
patent: 3864979 (1975-02-01), Ayres
patent: 4016879 (1977-04-01), Mellor
patent: 4094303 (1978-06-01), Johnson
patent: 4106509 (1978-08-01), McWhorter

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