Two-piece coupling device for fluid exchange

Details Two-piece coupling device for fluid exchange Two-piece coupling device for fluid exchange

1987-09-28

1989-12-26

Rosenbaum, C. Fred

Surgery

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

Material introduced into and removed from body through...

604905, 604250, 604283, A61M 106

Patent

active

048895270

ABSTRACT:
A two-piece coupling device is provided for the exchange of liquid or gaseous material. The first coupler has a sleeve with a longitudinal central passage and an axially projecting extension with at least one step. A jacket at least partially surrounds the extension. The first coupler also has a detachable fastener and a resilient tubular connection which is secured at one end within the jacket. The second coupler has a detachable fastener which cooperates with the fastener of the first coupler, and a hollow projection extending toward the first coupler. The hollow projection surrounds the entire extension of the sleeve of the first coupler, as well as part of the jacket. The device also includes an automatic blocking element for preventing the flow of the media through the tubular connection when the first coupler is separated from the second coupler.

REFERENCES:
patent: 2789838 (1957-04-01), Palm
patent: 4256106 (1981-03-01), Shoor
patent: 4334551 (1982-06-01), Pfister
patent: 4557261 (1985-12-01), Rugheimer
patent: 4738668 (1988-04-01), Bellotti et al.
patent: 4745950 (1988-05-01), Mathieu
"CAPD--Safe Lock 5F Take-Off-System," spec sheet of Fresenius AG, Oberursel, West Germany (undated).

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