Infusion pump, control program, semiconductor means and method for the dosed administration of a medicinal liquid
First Claim
1. An infusion pump for administering metered doses of a medicinal liquid to be injected, comprising:
- a liquid delivery means for delivering the liquid from a liquid container containing the liquid to be injected; and
a dispensing control device for metering dispensing of the liquid, wherein the liquid delivery means delivers the liquid to an inlet of the dispensing control device by pressure and the liquid delivery means does not interact with the dispensing control device.
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Accused Products
Abstract
An infusion pump for the dosed administration of a liquid includes a liquid conveying device, for example a pressure spring permanently impinging a piston tappet with pressure, and a distribution control device, for example a stop valve, for dosing the liquid distribution. The liquid conveying device impinges the liquid at the inlet of the distribution control device with pressure and the liquid conveying means is decoupled from the distribution control device. Exactness of dosage thus depends on the work tolerances of the liquid conveying means and is substantially only controlled by the exactness of the distribution control device which can be suitably adjusted. The invention encompasses a control method, a control program and a micro-processor component, and is suitable for mobile infusion pump systems, for example in the long-term administration of micro-doses of insulin to diabetes patients.
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Citations
22 Claims
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1. An infusion pump for administering metered doses of a medicinal liquid to be injected, comprising:
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a liquid delivery means for delivering the liquid from a liquid container containing the liquid to be injected; and
a dispensing control device for metering dispensing of the liquid, wherein the liquid delivery means delivers the liquid to an inlet of the dispensing control device by pressure and the liquid delivery means does not interact with the dispensing control device. - View Dependent Claims (2, 3, 4, 5, 6, 7, 8, 9, 10, 11, 12, 13, 14, 15, 16, 17, 18)
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19. A method of dispensing of a medicinal liquid, comprising the steps of:
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delivering the liquid to an inlet of a dispensing control device by means of pressure; and
operating the dispensing control device, causing the pressurized liquid to be dispensed, wherein the pressurization of the liquid for delivery is operationally isolated from the operation of the dispensing control device.
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20. A method of controlling the dispensing of a medicinal liquid, comprising the steps of:
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delivering the liquid to an inlet of a dispensing control device by means of pressure; and
operating the dispensing control device, causing the pressurized liquid to be dispensed, wherein pressurization of the liquid is decoupled from the operation of the dispensing control device.
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- 21. A control program for an infusion pump implementing a method comprising the steps of delivering a liquid to an inlet of a dispensing control device by means of pressure, and operating the dispensing control device, causing the pressurized liquid to be dispensed, whereby pressurization of the liquid is decoupled from the operation of the dispensing control device, said program comprising program code means which prompt implementation of said delivering and operating when run on a control means operably coupled to the infusion pump.
Specification