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Pressure sensor and non-invasive continuous blood pressure monitoring device and system

A pressure sensor, blood pressure technology, applied in pressure sensors, sensors, blood vessel evaluation and other directions, can solve the problems of complex operation procedures, inability to continuously measure, inconvenient to carry, etc., to achieve high sensitivity, verification feasibility and accuracy, high self- The effect of adaptability and accuracy

Inactive Publication Date: 2019-02-26
王琦 +1
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

The advantage of the non-invasive method is that it will not cause trauma and psychological harm to the patient; but the disadvantage is that the product is bulky and inconvenient to carry; it can only measure the blood pressure at a certain moment, and cannot measure continuously, and the operation procedure is complicated

Method used

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  • Pressure sensor and non-invasive continuous blood pressure monitoring device and system
  • Pressure sensor and non-invasive continuous blood pressure monitoring device and system
  • Pressure sensor and non-invasive continuous blood pressure monitoring device and system

Examples

Experimental program
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Effect test

Embodiment 1

[0055] Such as figure 1 , figure 2 with Image 6 As shown, a pressure sensor has a first electrode layer 1 , a first friction layer 2 , a second friction layer 3 and a protective layer 4 in sequence. The first friction layer 2 and the second friction layer 3 are respectively made of materials with different triboelectric properties, so that when the first friction layer 2 is in contact with the second friction layer 3, one of them loses electrons, and the other gets electrons. The second friction layer 3 is braided by a plurality of braided strips. There is a gap between the second friction layer 3 and the first friction layer 2 . When the second friction layer 3 is vibrated by the external pressure towards the first friction layer 2, the second friction layer 3 can deform and contact the first friction layer 2; and when the external pressure vibration becomes smaller or When withdrawing, the gap between the second friction layer 3 and the first friction layer 2 can be a...

Embodiment 2

[0094] Such as Figure 7 with Figure 8 As shown, in this embodiment, the second friction layer 3 is plated with the second electrode layer 5, and the first electrode layer 1 and the second electrode layer 5 are provided. Compared with only the first electrode layer 1, the output The voltage or current value is large. All the other parts are the same as the first embodiment.

[0095] Such as Figure 9 As shown, the specific process of this embodiment is as follows: when the external pressure vibration is transmitted to the protective layer 4 , the second friction layer 3 driving the braided structure deforms and contacts the first friction layer 2 . Since the second friction layer 3 and the first friction layer 2 have different affinity to electrons, the positive charges generated by friction are transferred to the first friction layer 2 , while the negative charges are transferred to the second friction layer 3 . Due to electrostatic induction, the charges generated in th...

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Abstract

The invention discloses a pressure sensor and a non-invasive continuous blood pressure monitoring device and system. A first electrode layer, a first friction layer, a second friction layer and a protecting layer are sequentially arranged; the first and second friction layers are prepared by adopting materials with different triboelectricity properties, so that one loses electrons and the other one acquire the electrons in the contacting process of the first and second friction layers; the second friction layer is prepared by the weaving of multiple weaving strips; a clearance is reserved between the second and the first friction layers, and the second friction layer can generate deformation to be in contact with the first friction layer when external pressure vibration towards the first friction layer is borne by the second friction layer; the clearance between the second and the first friction layers can be automatically adjusted along with external pressure when the external pressure vibration diminishes or stopped. The pressure sensor and the non-invasive continuous blood pressure monitoring device and system have the advantages that faint pulse vibration signals with differentfrequencies can be detected, and self-powered sensor pulse monitoring and non-invasive sleeve-band-pressure-free blood pressure monitoring can be achieved.

Description

technical field [0001] The invention belongs to the technical field of blood pressure monitoring, and in particular relates to a pressure sensor, a non-invasive and continuous blood pressure monitoring device and system. Background technique [0002] Cardiovascular diseases such as hypertension, coronary heart disease, and arteriosclerosis have become common and frequently-occurring diseases that plague people's health. As one of many physiological signals, the pulse signal contains a wealth of information. The comprehensive information of the pulse wave in terms of shape (waveform), intensity (amplitude), velocity (wave velocity) and rhythm (period) is very important. To a certain extent, it reflects many physiological and pathological characteristics of the human cardiovascular system. Blood pressure is an important physiological indicator in the human body. It contracts and relaxes periodically as the heart beats, and the lateral pressure exerted by the blood in the bloo...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): A61B5/021
CPCA61B5/02108A61B5/02141A61B5/7203A61B5/7225A61B5/725A61B2562/0247
Inventor 王琦毋玉芬
Owner 王琦
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