MINIATURE INFUSION PUMP FOR A CONTROLLED DELIVERY OF MEDICATION
First Claim
1. A micro pump device for dispensing proportioned quantities of medical fluid by applying pulsed pressure on the plunger stem of a syringe containing medical fluid which is injected through a syringe-tube connector to the body of the patient, said device comprised of:
- a levering mechanism for applying pressure on the plunger stem in the direction of the tube of the syringe, wherein said lever mechanism includes a lever revolving around a fixed axis and two unidirectional stoppers, a front stopper and a rear stopper, wherein the lever movement applies pressure on said front stopper;
an expending actuator means for applying pressure on the levering mechanism, wherein the activation of the actuator is controlled by a programmable logic module.
0 Assignments
0 Petitions
Accused Products
Abstract
The present invention is a miniature medication pump. With a small lightweight mechanism, operating on low energy consumption, the medication pump device is a highly reliable controlled portable device of drug infusion to patients. The proposed device is comprised of a piezoelectric actuator, operated by a programmable logic means, which applies force on a lever. The lever is situated between two unidirectional stoppers and transfers the force of the actuator onto the front stopper. The front stopper has a grip on the plunger stem and it therefore pushes it in the direction of the syringe and releases controlled amounts of medication to the body of the patient. The invention also include monitoring mechanisms which enable constant and accurate measurements of the amount of medication which is released from the device in actuality. The user of the pump is alerted about detected deviations from the designated flow of the medication.
-
Citations
20 Claims
-
1. A micro pump device for dispensing proportioned quantities of medical fluid by applying pulsed pressure on the plunger stem of a syringe containing medical fluid which is injected through a syringe-tube connector to the body of the patient, said device comprised of:
-
a levering mechanism for applying pressure on the plunger stem in the direction of the tube of the syringe, wherein said lever mechanism includes a lever revolving around a fixed axis and two unidirectional stoppers, a front stopper and a rear stopper, wherein the lever movement applies pressure on said front stopper;
an expending actuator means for applying pressure on the levering mechanism, wherein the activation of the actuator is controlled by a programmable logic module. - View Dependent Claims (2, 3, 4, 5, 6, 7, 8, 9, 10, 11, 12, 13, 14, 15, 16, 17, 18, 19, 20)
-
Specification