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Arteriovenous fistula blood flow sound tester

An arteriovenous fistula and a tester technology, applied in the field of medical devices, can solve the problems of affecting the accuracy of measurement, large interference, etc.

Pending Publication Date: 2017-02-01
黄锡华
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

Although this utility model can collect the sound of blood flow at the internal fistula site, it can be used to monitor the working state of the internal fistula in real time. When the internal fistula is blocked, it can be prompted with the display screen; measurement accuracy

Method used

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  • Arteriovenous fistula blood flow sound tester

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Embodiment Construction

[0014] like figure 1 As shown, the arteriovenous fistula blood flow sound tester of the present invention includes a decibel meter 1 , and the decibel meter 1 includes a microphone 101 , a display screen 102 and buttons 103 . The microphone 101 of the decibel meter is used to convert the sound signal into an electrical signal, and then the A / D converter converts the electrical signal into a digital signal and transmits it to the processor of the decibel meter 1, and the processor displays the converted sound decibel value On a display screen 102 connected to the output of the processor. In addition, the processor, the display screen 102 and the microphone 101 are powered by a battery, and the key 103 is connected to the input end of the processor. The microphone 101 of the decibel meter 1 is connected to one end of the sound transmission tube 2 , and the other end of the sound transmission tube 2 is connected to the sound stethoscope tube 3 . The arteriovenous fistula blood ...

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Abstract

The invention relates to the technical field of medical equipment, in particular to an arteriovenous fistula blood flow sound tester. The arteriovenous fistula blood flow sound tester comprises a decibel meter, wherein the decibel meter comprises a microphone, a display screen and a press button; the microphone of the decibel meter is connected with one end of a sound transmission pipe; and the other end of the sound transmission pipe is connected with a sound auscultation cylinder. By adoption of the above structure, the arteriovenous fistula blood flow sound tester provided by the invention can prove blood flows successfully by detecting that the decibel of the sound of blood flow passing through an arteriovenous fistula is increased in a certain range; if the decibel is reduced, pipe blockage is possible, and the reason should be analyzed as soon as possible and intervention is given, so that pipe blockage is prevented, and the pain of a patient and economic loss are reduced; in addition, the arteriovenous fistula blood flow sound tester is convenient to popularize on a large scale and has huge economic benefit.

Description

technical field [0001] The invention relates to the technical field of medical instruments, in particular to an arteriovenous fistula blood flow sound tester. Background technique [0002] Arteriovenous fistula refers to a small operation of vascular anastomosis. The artery near the wrist of the forearm and the adjacent vein are sutured together. After the anastomosis, arterial blood flows in the vein, forming an arteriovenous fistula. The blood vessels of arteriovenous fistula can provide sufficient blood for hemodialysis treatment, guarantee the adequacy of dialysis treatment, and are the lifeline of patients receiving dialysis treatment. [0003] However, due to factors such as abnormal vascular anatomy, dialysis hypotension, and long pressure time at the puncture point after dialysis, blockage may occur during the use of the internal fistula. It has been reported in the literature that the incidence of internal fistula obstruction is 30%-40% within the first two years o...

Claims

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Application Information

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IPC IPC(8): A61B5/026
CPCA61B5/026
Inventor 黄锡华
Owner 黄锡华
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