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Blood therapy cassette with recessed membrane valve, and blood therapy device

A technology for blood treatment and equipment, applied in the field of blood treatment boxes, to achieve the effect of less technical effort and large flow cross-section

Active Publication Date: 2020-10-02
FRESENIUS MEDICAL CARE DEUTSCHLAND GMBH
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0005] However, especially for blood therapy cassettes in which the membrane and membrane valve are welded so that it is flush with the edge of the channel along the edge of the channel, production or processing problems may arise

Method used

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  • Blood therapy cassette with recessed membrane valve, and blood therapy device
  • Blood therapy cassette with recessed membrane valve, and blood therapy device
  • Blood therapy cassette with recessed membrane valve, and blood therapy device

Examples

Experimental program
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Effect test

Embodiment Construction

[0087] figure 1 Shows a side view of a blood therapy cassette 1000 according to the present invention having a covering means located on figure 1 The surface that people look at.

[0088] Hereinafter, the blood treatment cartridge 1000 according to the present invention is also referred to simply as the cartridge 1000 .

[0089] The case 1000 includes a hard part 1 . like figure 1 As shown in an example, the hard part 1 includes a chamber, a channel and a valve. In addition, if figure 1 As shown by way of example in , the chambers, channels and valves are integrated into the rigid part 1 or are at least partially formed by the rigid part 1 .

[0090] figure 1 As shown, the cassette 1000 has a covering device, here for example a membrane 3 , at its front side. The covering means can be welded onto the hard part 1 in a flat manner, ie flat.

[0091] According to the invention, embodiments involving welding and sealing profiles in three-dimensional configurations can...

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Abstract

The invention relates to a blood therapy cassette (1000) having a cassette body embodied as a rigid part (1) and a membrane (3), wherein the membrane (3) is connected to the rigid part (1) and at least partially Covering the hard part (1), wherein the hard part (1) comprises at least a valve seat or a valve section or a valve seat (226) of a valve (288), wherein the valve (288) is implemented such that the valve (288) In addition to assuming the first open position, when a force is applied to the section of the membrane (3) that is positioned above the valve seat (226), the valve (288) also assumes a second closed position, wherein, in the first open In this position, the sections of the valve seat (226) and the membrane do not touch each other, and the valve seat (226) includes a non-straight section in its longitudinal extension. Furthermore, the invention relates to a blood therapy device (5000) connected to a blood therapy cassette (1000).

Description

technical field [0001] The invention relates to a blood therapy box and a blood therapy device. Background technique [0002] In medicine or laboratory technology, single-use systems are increasingly being realized as compact medical functional devices, e.g. devices for conducting liquids and gases (especially medical fluids and blood) in the channels and chambers therein. Cassette System or Blood Therapy Cassette. If the cassette system or blood therapy cassette is provided as a single use type, it may be referred to as a disposable cassette or a single use cassette. [0003] In most cases, these cassettes are rigid part and membrane cassettes. The hard part is often composed of an injection molded material such as PE, PP, PA, ABS, PMMA, PC, or PVC. Implemented in the hard part are eg hose connections, connectors, chambers, channels and alignment features. Chambers and channels are usually designed as semi-open fluid conduction structures. A membrane made of a material...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): A61M1/16A61M39/12F16K7/12
CPCA61M1/16A61M39/12F16K7/12A61M1/362264A61M1/362223A61M1/362265A61M1/362227A61M1/362266A61M1/36225A61M1/362262A61M1/36224A61M1/36226A61M39/22A61M2039/226A61M2205/128A61M2206/20A61M2205/12F16K7/126A61M1/14A61M1/1621A61M39/24A61M2039/246A61M2205/123A61M2205/3331A61M2205/3584
Inventor M·劳尔
Owner FRESENIUS MEDICAL CARE DEUTSCHLAND GMBH
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