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Controlled delivery drive mechanisms for drug delivery pumps

A driving mechanism, controlled technology, applied in the direction of drug devices, pressure infusion, flow monitors, etc., can solve the problem of not being universally applicable, etc.

Inactive Publication Date: 2015-04-29
UNITRACT SYRINGE
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

However, neither manually operated syringes nor pens are universally applicable and are not preferred for delivery of all medications

Method used

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  • Controlled delivery drive mechanisms for drug delivery pumps
  • Controlled delivery drive mechanisms for drug delivery pumps
  • Controlled delivery drive mechanisms for drug delivery pumps

Examples

Experimental program
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Embodiment Construction

[0036] The present invention provides a drive mechanism for the controlled delivery of a drug substance and a drug delivery pump integrating the drive mechanism. The drive mechanism of the present invention controls the rate of drug delivery by metering, providing resistance, or otherwise preventing free axial translation of the plunger seal forcing the drug substance out of the drug container, and thus can be delivered at variable rates and / or The drug substance is delivered under distribution. In addition, the drive mechanism of the present invention provides an integrated status indication feature that provides feedback to the user before, during, and after drug delivery. For example, an initial feedback may be provided to the user to determine that the system is operational and ready for drug delivery. Upon actuation, the system may then provide one or more drug delivery status indications to the user. The variable rate drive mechanism and drug pump can provide an end-of...

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PUM

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Abstract

A controlled delivery drive mechanism includes a drug container having a barrel and a plunger seal; a drive housing within which at least initially partially resides a piston having an interface surface and a drive rack; and a power spring. The piston is configured to contact and axially translate the plunger seal within barrel. The mechanism may be configured to convert rotational movement of a drive pinion to axial translation of the drive rack, or to convert axial force of a linear power spring into torsional motion of a drive pinion. A regulating mechanism meters the drive pinion such that the piston is axially translated at a controlled rate. The drug container may contain a drug fluid within a drug chamber for drug delivery at a controlled rate. The regulating mechanism may be an escapement regulating mechanism. A drug delivery pump includes such controlled delivery drive mechanisms.

Description

[0001] Cross References to Related Applications [0002] This application asserts U.S. Provisional Application No. 61 / 694,534, filed August 29, 2012; U.S. Provisional Application No. 61 / 731,744, filed November 30, 2012; and Priority to U.S. Provisional Application No. 61 / 748,667, the contents of which are hereby incorporated by reference in their entirety. technical field [0003] The present invention relates to drug delivery pumps. More particularly, the present invention relates to drive mechanisms for the controlled delivery of drug substances, drug delivery pumps having the same, methods of operating such devices, and methods of assembling such devices. Background technique [0004] Parenteral delivery of various drugs (ie, delivery in a manner that does not pass through the alimentary canal) has become an ideal method of drug delivery for a number of reasons. This form of drug delivery by injection enhances the effect of the substance being delivered and ensures that...

Claims

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Application Information

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IPC IPC(8): A61M5/145
CPCA61M5/1454A61M5/14546A61M5/14566A61M5/1452A61M5/172A61M2005/14252A61M5/16804A61M2005/14208A61M2202/0007A61M2205/3334
Inventor I·B·汉森S·比弗P·F·本特四世K·博克尔曼M·马耶特
Owner UNITRACT SYRINGE