Method and system for measuring recirculation rate and/or recirculation volume of dialyzing access

A recirculation rate and recirculation technology, applied in the field of hemodialysis detection, can solve the problems of inapplicability to accurately and quickly respond to dialysis patients, cumbersome steps, time-consuming, etc. Effect

Inactive Publication Date: 2010-12-22
WEST CHINA HOSPITAL SICHUAN UNIV
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Problems solved by technology

[0008] However, the existing technology for measuring recirculation in the dialysis pathway generally has the defects of cumbersome steps, time-consuming,

Method used

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  • Method and system for measuring recirculation rate and/or recirculation volume of dialyzing access
  • Method and system for measuring recirculation rate and/or recirculation volume of dialyzing access
  • Method and system for measuring recirculation rate and/or recirculation volume of dialyzing access

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Embodiment Construction

[0037] In order to make the object, technical solution and advantages of the present invention clearer, the present invention will be further described in detail below in conjunction with the accompanying drawings and embodiments. It should be understood that the specific embodiments described here are only used to explain the present invention, not to limit the present invention.

[0038] figure 1 Shows the structure of the system 100 for measuring the recirculation rate and / or recirculation volume of the dialysis access according to the present invention, the system 100 at least includes an ultrasonic contrast agent injection device 10, an ultrasonic signal extraction device 20, and a recirculation calculation device 30, wherein :

[0039] The ultrasonic contrast agent injection device 10 is used for injecting contrast agent on the dialysis access including the dialysis blood vessel / fistula access (ie, dialysis vascular fistula and / or vascular access) and dialyzer tubing. ...

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Abstract

The invention discloses a method for measuring the recirculation rate and/or the recirculation volume of a dialyzing access, comprising the following steps of: injecting a contrast agent on the dialyzing access which comprises a dialyzing vessel/internal fistula access and a dialyzator pipeline; extracting an ultrasonic dialyzing echo signal or a Doppler signal of the contrast agent on the dialyzing access to generate a corresponding time intensity curve; and calculating the recirculation rate and/or the recirculation volume of the dialyzing access according to the parameters of a time intensity curve of an ultrasonic dialyzing echo signal or the Doppler signal. Accordingly, the invention also provides a system for measuring the recirculation rate and/or the recirculation volume of the dialyzing access, and therefore, the invention can be used for quickly and accurately measuring the recirculation rate and/or the recirculation volume of the dialyzing access in large quantity.

Description

technical field [0001] The invention relates to the detection technology of hemodialysis in the medical field, in particular to a method and system for measuring the recirculation rate and / or recirculation volume of a dialysis channel. Background technique [0002] Hemodialysis refers to taking the patient's blood out of the body, and removing some pathogenic substances in it through a purification device, so as to purify the blood to achieve the purpose of treating diseases. Maintenance hemodialysis is one of the important treatment measures for patients with end-stage renal disease. Adequacy of dialysis is an important factor affecting the quality of life and prognosis of dialysis patients. Dialysis access includes dialysis blood vessel / internal fistula access and dialyzer tubing, which is an important structure connecting extracorporeal circulation and internal cardiovascular circulation during dialysis. Appropriate dialysis access is an important factor determining the ...

Claims

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Application Information

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IPC IPC(8): A61M1/14
Inventor 周翔
Owner WEST CHINA HOSPITAL SICHUAN UNIV
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