04246932 is referenced by 92 patents and cites 10 patents.

A multiple valve assembly for use in the medical field includes a pair of flexible valve discs which are essentially co-planar with each other. A pair of tube connectors are oriented to be at an essentially right angle with respect to each other, and fluid communication between the interior of a hollow body and the tube connectors is controlled by the valve discs. An aspiration procedure has one valve disc in an open position and the other valve disc in an occluding position, and an injection procedure reverses the positions of the valve discs.

Title
Multiple additive valve assembly
Application Number
6/86178
Publication Number
4246932
Application Date
October 18, 1979
Publication Date
January 27, 1981
Inventor
Kenneth Raines
Bethlehem
PA, US
Agent
Shoemaker and Mattare
Assignee
Burron Medical
PA, US
IPC
F16K 15/14
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