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Functional medical device with a valve seat for a remanent non-return valve

A technology of functional devices and check valves, applied in the direction of valves, blood circulation treatment, etc., can solve the problems of impossibility, complexity, and obstruction of disinfection operations.

Active Publication Date: 2016-11-09
FRESENIUS MEDICAL CARE DEUTSCHLAND GMBH
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

When performing gas disinfection, problems can arise where surfaces are in extensive contact or contact with each other and blocked or restricted fluid paths can hinder or complicate or make the disinfection operation impossible

Method used

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  • Functional medical device with a valve seat for a remanent non-return valve
  • Functional medical device with a valve seat for a remanent non-return valve
  • Functional medical device with a valve seat for a remanent non-return valve

Examples

Experimental program
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Effect test

Embodiment Construction

[0254] Figures 1a to 1c A check valve configuration 1 in a first exemplary embodiment of a functional device according to the invention is shown.

[0255] Figure 1a Valve construction 1 shown in exploded view, Figure 1b is in the first position, i.e., the inactive open initial position, and Figure 1c is in the second position, ie, the "residual" (ie, "continuous" or "permanent") enabled check valve position.

[0256] The one-piece valve body 30 is composed of silicone rubber. The centrally located cylinder or section of the valve body 30 (referred to herein as the core cylinder 31 ) through its front end facing the membrane provides for the axial activation projections to be introduced on the cassette membrane and the activation of the machine. Actuators (also referred to simply as actuators, are not shown or illustrated here, but can be found in Figure 6f ) acts as a sufficiently rigid transmission element. The radial sealing strip 32 , for example cup-shaped, is pe...

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Abstract

The invention relates to a functional medical device (900) with a valve seat (803) for a non-return valve (1). In addition to a first position which is suitable for sterilizing gas, the non-return valve (1) is designed to assume a second functional position, in which the non-return valve (1) exerts a non-return function, by applying a force onto a portion of the non-return valve (1) and / or by moving the non-return valve. The non-return valve (1) is designed to remain in the second position after being successfully converted into the second position after the force and / or the moving element has been removed.

Description

technical field [0001] The invention relates to a functional medical device having the features of claim 1 . Background technique [0002] In medicine or laboratory technology, single-use systems are increasingly being realized as compact medical functional devices, such as cartridges in which channels and chambers conduct liquids and gases (especially medical fluids and blood) System or blood therapy cartridge. [0003] The functional element of the check valve is used in those cartridge systems, but it is inserted into the pipe as a single assembly to passively (i.e. no actively driven or motorized valves present) lock in the desired reverse flow direction It stops the fluid flow and releases the fluid flow in the desired flow direction, usually only from a certain opening pressure. [0004] Some of the applicant's disposable cartridges (also known as single-use cartridges) consist essentially of a hard part made by injection or coating techniques or having a fluid-condu...

Claims

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Application Information

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IPC IPC(8): A61M39/24
CPCA61M2039/242A61M2039/2433A61M2039/2453A61M2039/2493A61M39/24A61M1/362227A61M1/362265A61M1/362261A61M1/36225A61M1/36A61M39/26A61M2039/2446A61M2039/2473
Inventor M·劳尔
Owner FRESENIUS MEDICAL CARE DEUTSCHLAND GMBH
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