Apparatus and method for preventing free flow in an infusion line

A technology for infusion devices and tubes, which is applied in the direction of devices introduced into the body, pressure infusion, flow control, etc., and can solve the problems of increasing the total cost of infusion devices

Inactive Publication Date: 2009-06-17
ZEVEX
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

However these devices generally add significantly to the overall cost of the infusion set and some provide only minimal protection against free flow

Method used

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  • Apparatus and method for preventing free flow in an infusion line
  • Apparatus and method for preventing free flow in an infusion line
  • Apparatus and method for preventing free flow in an infusion line

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Embodiment Construction

[0067] The present invention will be discussed below to enable a person skilled in the art to make and use the invention with reference to the accompanying drawings, in which various elements of the invention are indicated by reference numerals. It is to be understood that the following description is merely an illustrative example of the principles of the invention and should not be taken as limiting the pending claims. In addition, although various embodiments can achieve some of the above objects, it is understood that some embodiments cannot achieve all of the objects of the present invention, and these objects should not be seen as limiting the pending claims.

[0068] Figure 1 shows a perspective view of an infusion set 10 and related structures manufactured according to the teachings of the prior art. One end 10a of the infusion set 10 has a bag 14 for containing parenteral or enteral injection fluid. The bag 14 is typically supported by a stand 18 which holds the bag ...

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PUM

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Abstract

The present invention relates to a device and method for preventing free flow through an infusion set by selectively preventing flow therethrough with a flow restrictor (104) disposed within the infusion set. The flow restrictor may be responsive to a pressure differential within the infusion set, or may be responsive to squeezing of the infusion set. When a pair of flow restrictors (504, 508) are used in series, an in-line pump can be formed.

Description

[0001] related application [0002] This application is a continuation of US Patent Application No. 09 / 836,850, filed April 16, 2001, which in turn is a continuation of US Patent Application No. 09 / 569,332, filed May 11,2000. technical field [0003] The present invention relates to a device and method for preventing the free flow of injection liquid through the infusion line during enteral or parenteral administration, especially an occluder / valve and infusion solution used in an infusion device etc. A method of use of a device, etc., wherein the flow restrictor / valve prevents the undesired free flow of injectable fluid through the infusion set, while allowing the injectable fluid to flow through the infusion set under controlled conditions. Background technique [0004] The use of infusion sets to infuse patients with fluids is well known in the medical arts. Infusion sets can be used for both enteral and parenteral administration. When the patient is unable to eat norm...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): A61M5/14A61M5/168A61M5/142A61M39/22A61M39/24A61M39/28
CPCA61M2039/242A61M39/24A61M2039/2473A61M2039/2486A61M5/14232A61M5/14A61M5/14228A61M39/22A61M39/281A61M5/142
Inventor 戴维·西斯戴维·J·麦克纳利肯特·F·贝克
Owner ZEVEX
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