Surgery – Controlled release therapeutic device or system – Osmotic or diffusion pumped device or system
Patent
1984-02-16
1985-04-23
Rosenbaum, C. Fred
Surgery
Controlled release therapeutic device or system
Osmotic or diffusion pumped device or system
55482, 55385C, 604333, A61M 100
Patent
active
045127719
ABSTRACT:
A vent assembly for a closed body fluid drainage system having a fluid retaining bag with a body engageable fluid draining tube extending therefrom. The venting assembly comprises, in spatial relationship, an outer, gas permeable, liquid-wetting bacteria filter, and an inner, gas permeable, liquid-repellent filter. In use, the vent assembly provides for the free exchange of gases flowing into and out of the fluid drainage system while effectively precluding entrance of bacteria and the like.
REFERENCES:
patent: 3316908 (1967-05-01), Burke
patent: 3359977 (1967-12-01), Burke
patent: 3523408 (1970-08-01), Rosenberg
patent: 3575170 (1971-04-01), Clark
patent: 4113627 (1978-09-01), Leason
patent: 4238207 (1980-12-01), Ruschke
patent: 4305405 (1981-12-01), Meisch
patent: 4333480 (1982-06-01), Villari et al.
patent: 4427425 (1984-01-01), Briggs et al.
C. R. Bard Inc.
Kruter J. L.
Rosenbaum C. Fred
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