Noninvasive vascular endothelial function assessment device

A technology of vascular endothelium and evaluation device, which is applied in the field of biomedical detection, can solve the problems that it cannot replace the function of aortic endothelium, and achieve the effect of improving repeatability and reliability, reasonable measurement results, and low risk

Inactive Publication Date: 2016-01-13
NANCHANG UNIV
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Problems solved by technology

However, the measurement site is the front end of the index finger of both hands, and the signal obtained re

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  • Noninvasive vascular endothelial function assessment device
  • Noninvasive vascular endothelial function assessment device
  • Noninvasive vascular endothelial function assessment device

Examples

Experimental program
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Embodiment 1

[0031]The air pump (101) is respectively connected to the air intake valve A (107), the air intake valve B (109), and the air intake valve C (111) through the air conduit, and each air intake valve is used to conduct or block the cuff and the air pump The airflow between them; after passing through the intake valve, they are connected to the corresponding blood pressure cuff A (102), blood pressure cuff B (103), and blood pressure cuff C (104). The blood pressure cuff is used to bind the arm and The blood vessel pressure in the arm is transmitted to the pressure sensor through the catheter; the other channel of the blood pressure cuff A (102) is connected to the exhaust valve A (108) and the pressure sensor A (105); the other channel of the blood pressure cuff B (103) is connected to the row Air valve B (110) and pressure sensor B (106), another channel of blood pressure cuff C (104) is connected to exhaust valve C (112), each exhaust valve is used to release or maintain cuff p...

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Abstract

The invention relates to the technical field of noninvasive vascular endothelial function measurement and provides a noninvasive vascular endothelial function assessment device. The noninvasive vascular endothelial function assessment device comprises three blood pressure cuffs, a cuff pressure control unit, an inflator pump, two pressure sensors, a signal conditioning and A/D (analog to digital) acquisition circuit, a data processing unit and a display module. Each blood pressure cuff is provided with an independent intake passage with an intake valve and an exhaust passage with an exhaust valve, the intake passage of each blood pressure cuff is connected with the inflator pump, and the inflator pump, each intake valve and each exhaust valve are controlled by the cuff pressure control unit; two pressure sensors are arranged in the exhaust passages of two of the blood pressure cuffs respectively, the two pressure sensors are connected with the signal conditioning and A/D acquisition circuit which is connected with the data processing unit, and the data processing unit is connected with the display module. By the noninvasive vascular endothelial function assessment device, vascular endothelial function measurement based on noninvasive measurement for aortas of both arms can be realized.

Description

technical field [0001] The invention belongs to the technical field of biomedical detection, and in particular relates to a non-invasive blood vessel endothelial function measurement device based on double-arm blood vessel pressure measurement. Background technique [0002] Vascular endothelium is a single cell layer covering the inner surface of blood vessels, and normal vascular endothelial function is the basic condition for maintaining the homeostasis of the cardiovascular system. Vascular endothelial dysfunction has been proved to be closely related to many diseases or their diagnostic markers. At present, endothelial function detection methods are mainly divided into invasive detection and non-invasive FMD endothelial detection. Invasive detection Angiography can be used to detect changes in coronary artery diameter and flow, and to judge endothelial function. However, due to its invasiveness, long time-consuming and high cost, its clinical application is greatly lim...

Claims

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Application Information

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IPC IPC(8): A61B5/02A61B5/0225
Inventor 夏灵林苏海
Owner NANCHANG UNIV
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