Patent ID: 8372045
Filing Date: 2013-02-12
Classification: A61M

Abstract:
1. An infusion device for delivery of a controlled-volume dosage of a fluid to a patient, said infusion device comprising: a medication reservoir delivering fluid at a pressure; a dosage reservoir having an initial, substantially empty state; a first fluid conduit between the medication reservoir and dosage reservoir; a one-way valve allowing fluid flow through the first fluid conduit only away from the medication reservoir; a pressure source applying pressure higher than the medication reservoir pressure to gradually dispense fluid from the dosage reservoir; an actuator manually movable against pressure applied by the pressure source to temporarily reduce the pressure applied by the pressure source and enable the dosage reservoir to rapidly fill with a controlled volume of fluid from the medication reservoir through the first fluid conduit; a patient connection; a second fluid conduit between the dosage reservoir and the patient connection; and a flow restrictor restricting the fluid flow rate from the dosage reservoir through the second fluid conduit to the patient connection, whereby the fluid flow rate is determined by the fluid pressure provided by the medication reservoir and the dosage reservoir.