Medical functional device with valve seat for residue check valve

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

Active Publication Date: 2020-01-31
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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  • Medical functional device with valve seat for residue check valve
  • Medical functional device with valve seat for residue check valve
  • Medical functional device with valve seat for residue check valve

Examples

Experimental program
Comparison scheme
Effect test

Embodiment Construction

[0253] Figures 1a to 1c A check valve configuration 1 in a first exemplary embodiment of a functional device according to the invention is shown.

[0254] 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.

[0255] 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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PUM

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Abstract

The invention relates to a medical functional device (900) having a valve seat (803) for a non-return valve (1), wherein said non-return valve (1) is embodied such that, in addition to the first position, by By exerting a force on a segment of the check valve (1) and / or by moving or displacing the segment, the check valve (1) also assumes a second functional position, the first position Suitable for gas disinfection, in said second functional position said non-return valve assumes a non-return or non-return function, wherein said non-return valve (1) is implemented such that it achieves transfer to said first in the second position and remains in the second position after release or insufficiency of the force and / or movement.

Description

technical field [0001] The invention relates to a medical functional device. 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-conducting structure and a membrane. ...

Claims

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Application Information

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Patent Type & Authority Patents(China)
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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