Flashback plug

Details Flashback plug Flashback plug

1991-01-09

1991-07-16

Wilson, John J.

Surgery

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

Treating material introduced into or removed from body...

604900, A61M 5178

Patent

active

050321161

ABSTRACT:
A flashback plug has a body molded of a semi-transparent polymeric material along and about an axis. A distal end of the body engages in fluid tight communication a needle hub flash chamber and a proximal end extends therefrom to receive a fitting. A passage extends through the body along the axis from the proximal end to the distal end to permit flow therethrough. A vent membrane of a hydrophobic filter media is mounted by its periphery across the passage. The vent membrane is insert molded within the body to capture the proximally extending periphery thereof so that liquid in the passage distal end can not reach the proximal end. The proximal end of the passage has the shape of a female luer taper which terminates distally at the vent membrane. A pair of opposed channels extend longitudinally and parallel to the axis from the vent membranes to the proximal end. The distal end of the body has an outside a male luer for engaging the needle hub flash chamber.

REFERENCES:
patent: 4200096 (1980-04-01), Charvin
patent: 4207870 (1980-06-01), Eldridge
patent: 4682980 (1987-07-01), Suzuki
patent: 4828587 (1989-05-01), Baurmeister et al.
patent: 4917671 (1990-04-01), Chang

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