Controlled release infusion system

Details Controlled release infusion system Controlled release infusion system

1983-07-15

1985-08-13

Yasko, John D.

Surgery

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

Treating material introduced into or removed from body...

604 84, 604 86, 604247, 604248, 604249, 604411, A61M 514

Patent

active

045347581

ABSTRACT:
Valved adaptors are disclosed permitting the introduction of a drug-containing vial in the delivery tube of an I.V. administration set. The adaptors have a three position operation characterized by a bypass mode, a dilution mode, and a delivery mode, the adaptors being manually changed from mode to mode. The disclosed adaptors include gravity operated valves, reciprocating spool valves, and rotating spool valves, each including a spike to penetrate the stopper of a vial and a vent to permit air to escape the vial as liquid is introduced to dilute the vial contents.

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