Manifold for infusing medical fluids

Details Manifold for infusing medical fluids Manifold for infusing medical fluids

1994-07-15

1995-07-11

Rivell, John

Fluid handling

Line condition change responsive valves

Direct response valves

137605, 604 83, 604247, A61M 3700

Patent

active

054311853

ABSTRACT:
A fluid manifold includes a housing having a first inlet and an outlet and a plurality of inlets intermediate the first inlet and the outlet which are provided with check valve action to prevent retrograde flow through the valved inlets, yet allow individual inlets to pass fluid when the fluid pressure in any individual inlet exceeds that of the interior of the chamber by a predetermined cracking pressure. The check valve action is provided by a single resilient backcheck member which is deformably urged against annular valve seats by support members embodied in the housing opposite and central to the valved inlets. A conventional injection site may be provided in the housing so that additional fluids may be injected into the interior of the manifold through an inserted cannula. A chamber within the manifold is configured to direct a flowstream through the manifold onto and around the resilient backcheck member and all interior surfaces, eliminating dead space where air or fluids may collect, and enhancing flushing of the manifold. This enables simultaneous or sequential administration of multiple medicaments in low volume applications.

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Pacific Device Inc. "Other Manifold Designs", Date Unknown.

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