FLOW RATE CONTROLLER FOR A MEDICATION INFUSION PUMP

A flow rate controller is provided for regulating the flow rate of medication delivered to a patient by an implantable medication infusion pump of the constant flow type, to minimize or prevent flow rate increases attributable to fluctuations in ambient pressure. The infusion pump comprises an impla...

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Bibliographische Detailangaben
1. Verfasser:	INDRAVUDH, VIROTE
Format:	Patent
Sprache:	eng ; fre
Schlagworte:	BLASTING CONTROLLING DEVICES FOR INTRODUCING MEDIA INTO, OR ONTO, THE BODY DEVICES FOR PRODUCING OR ENDING SLEEP OR STUPOR DEVICES FOR TRANSDUCING BODY MEDIA OR FOR TAKING MEDIA FROMTHE BODY HEATING HUMAN NECESSITIES HYGIENE LIGHTING MECHANICAL ENGINEERING MEDICAL OR VETERINARY SCIENCE PHYSICS POSITIVE DISPLACEMENT MACHINES FOR LIQUIDS PUMPS PUMPS FOR LIQUIDS OR ELASTIC FLUIDS REGULATING SYSTEMS FOR CONTROLLING OR REGULATING NON-ELECTRIC VARIABLES WEAPONS
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Beschreibung
Zusammenfassung:	A flow rate controller is provided for regulating the flow rate of medication delivered to a patient by an implantable medication infusion pump of the constant flow type, to minimize or prevent flow rate increases attributable to fluctuations in ambient pressure. The infusion pump comprises an implantable pump housing with a pressurized medication reservoir therein for continuous flow delivery to the patient through a baseline flow path including a restrictor such as a capillary tube. The controller comprises a pressure responsive control valve for connecting a secondary restrictor such as an additional capillary tube in series with the baseline flow path, to prevent undesired increase in the medication flow rate in the event that the patient temporarily encounters a high altitude ambient pressure.