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Capacitance balance and ultrafiltration equipment in use for blood purification

A blood purification and volume technology, applied in the fields of blood filtration, filtration and separation, chemical instruments and methods, etc., can solve the problems of affecting the treatment effect, endangering the life of patients, large dehydration errors, etc., to achieve guaranteed accuracy, wide application range, and dehydration accuracy high effect

Active Publication Date: 2008-12-03
SWS HEMODIALYSIS CARE CO LTD
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

Since the amount of dialysate used in each hemodialysis treatment is more than 100 liters, a small error in the inflow and outflow volume may cause a high cumulative error, resulting in a large error between the set dehydration and the actual dehydration
[0008] The direct consequence of large dehydration error is to affect the treatment effect and even endanger the patient's life

Method used

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  • Capacitance balance and ultrafiltration equipment in use for blood purification
  • Capacitance balance and ultrafiltration equipment in use for blood purification
  • Capacitance balance and ultrafiltration equipment in use for blood purification

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Embodiment Construction

[0024] Below in conjunction with accompanying drawing and embodiment the present invention will be further described:

[0025] Such as figure 2 , image 3 As shown, a control circuit 3 and a capacity balancer assembly 19 are provided in the box body 2. The interior of the capacity balancer assembly 19 has two identical and mutually isolated cavities I, II, and each cavity is separated by a diaphragm 20. It is divided into two chambers, among which I-A and II-A are dialysate chambers, and I-B and II-B are waste liquid chambers. The case body 2 is provided with a dialysate inlet connector 11, a waste liquid inlet connector 12, a dialysate outlet connector 18 and a waste liquid outlet connector 17, wherein the dialysate inlet connector 11 is connected to the first gear pump 8 through a pipeline and connected to the first hydraulic pressure monitor. The liquid inlet of the device 6 is connected, and the pipeline connected from the liquid outlet of the first hydraulic monitor 6 ...

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PUM

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Abstract

A volume balancing and ultrafiltering device for cleaning blood is disclosed. Its volume balancing module has at least one internal cavity divided into dialyzing liquid chamber and waste liquid chamber by a diaphragm. Both chambers have respective liquid inlet and liquid outlet, which are equipped with electromagnetic valves for flow control. When the quantity of waste liquid coming in the waste liquid jointer is greater than the throughput of the module, the excessive waste liquid is by-passed by ultrafiltration pump via by-pass tube.

Description

technical field [0001] The invention relates to a device for blood purification, in particular to a volume balance and ultrafiltration device for hemodialysis and hemofiltration equipment. Background technique [0002] Hemodialysis (HD) treatment and hemofiltration (HF) treatment are the main treatments for patients with uremia and acute and chronic renal failure syndrome to survive. Both treatment modes finally need to use hemodialyzer or hemofilter to remove toxins and excess water in the body. There is no essential difference in their structure. They are both composed of a large number of hollow fiber tubes. These hollow fibers The tube is a semipermeable membrane with high permeability. Small and medium molecular substances and water in the blood can pass through freely, while larger molecules in the blood (such as most proteins, plasma components, blood cells, etc.) cannot pass through. [0003] Such as figure 1 As shown, a is a human body, b is a dialyzer, and c is a...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): A61M1/14A61M1/34B01D29/00B01D35/00
Inventor 高光勇沈洪何娅妮任应祥
Owner SWS HEMODIALYSIS CARE CO LTD
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