Infusion pump cassette with anti-free-flow valve mechanism

Abstract

A cassette (1) that is insertable into an infusion pump for delivery of a fluid to a subject that has a housing with two ends for holding flexible tubing (75) through which the fluid is directed. The housing has an open area exposing the tubing, the tubing engages a pumping mechanism when inserted into an infusion pump. An anti-flow valve mechanism (100) associated with the tubing or the cassette and present either in, on or near the housing is made up of a piston (103 / 105) and spring (110), where the spring biases the piston against the tubing to prevent fluid flow.

Description

technical field [0001] The present invention relates to a device and method for preventing free flow during enteral or parenteral administration of fluids through the tubing of an infusion line. More particularly, the present invention relates to a device that can be associated with an infusion pump to deliver fluid to a subject, wherein the device includes a flow prevention valve mechanism such that when the device is associated with the infusion pump, the fluid is allowed to flow through the tubing, And when the device is removed from the pump, the anti-flow valve closes the tubing to prevent undesired free flow of solution through the tubing. Background technique [0002] The use of infusion sets to administer fluids to patients is well known in the medical arts. The infusion set is for enteral or parenteral application. Enteral feeding pumps are used to provide nutrition and medication to patients when they are unable to eat normally for various reasons. Parenteral (i...

AI Technical Summary

Problems solved by technology

Cassette devices of the type disclosed in U.S. Patent No. 5,904,668 to Hyman et al. and U.S. Patent No. 6,165,154 to Gray et al. tend to be more complex and require the action of additional associated mechanisms, such as an infusion pump door , handles, etc. movement or closure to fully function

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