Pressure sensor, and preparation method and use method of pressure sensor

A pressure sensor, line direction technology, applied in pressure sensors, sensors, applications, etc., can solve the problems of high hardness, poor processing performance, blood vessel damage, etc., to achieve high detection sensitivity, improve affinity, and avoid damage.

Pending Publication Date: 2021-03-19
INST OF FLEXIBLE ELECTRONICS TECH OF THU ZHEJIANG +1
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  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

However, the traditional implantable wireless pulmonary artery pressure monitoring system is made of metal substrate, which has high hardness, poor processability and easy to cause damage to blood vessels

Method used

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  • Pressure sensor, and preparation method and use method of pressure sensor
  • Pressure sensor, and preparation method and use method of pressure sensor
  • Pressure sensor, and preparation method and use method of pressure sensor

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Embodiment Construction

[0029] The pressure sensor provided by the present invention and its preparation method and use method will be further described below.

[0030] Such as figure 1 and figure 2 As shown, the blood vessel pressure sensor of an embodiment provided by the present invention is mainly used for implanting in blood vessels, especially pulmonary arteries, for detecting pressure parameters in blood vessels.

[0031] The pressure sensor includes a flexible substrate 10 and a resonant circuit layer 20 compounded on the surface of the flexible substrate 10. The material of the flexible substrate 10 includes a temperature-sensitive shape memory polymer. The resonant circuit layer 20 includes a capacitive region 21, and a first The coil area 22 and the second coil area 23 .

[0032] Wherein, the temperature-sensitive shape memory polymer includes at least one of polyurethane, N-isopropylacrylamide, methylcellulose or polyvinyl alcohol-vinyl acetate copolymer. The flexible matrix 10 is mad...

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PUM

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Abstract

The invention discloses a pressure sensor. The pressure sensor comprises a flexible substrate and a resonance circuit layer compounded on the surface of the flexible substrate; the material of the flexible substrate comprises a temperature-sensitive shape memory polymer; the resonance circuit layer comprises a capacitor region, a first coil region and a second coil region; and the first coil region and the second coil region are connected to two ends of the capacitor region. The invention also discloses a preparation method and a use method of the pressure sensor. According to the pressure sensor in the invention, the flexible substrate is made of the temperature-sensitive shape memory polymer, has a good shape memory effect and is flexible as a whole; extra damage to blood vessels can bereduced or even avoided; besides, the resonance circuit layer is compounded on the surface of the flexible substrate so as to monitor the change of the pressure in a blood vessel; the detection effectis good; the pressure sensor is wound into an annular shape, so that the attaching effect of the pressure sensor and the blood vessel wall is improved; and the detection accuracy is high.

Description

technical field [0001] The invention relates to the technical field of detection, in particular to a pressure sensor, a preparation method and a use method thereof. Background technique [0002] Chronic heart failure is a complex clinical syndrome and a global public health problem. Although great progress has been made in drugs and medical equipment, the morbidity, hospitalization rate and mortality of chronic heart failure have not been reduced. In related technologies, the use of an implantable wireless pulmonary artery pressure monitoring system to detect and manage heart failure has a positive impact on improving the prognosis of patients with heart failure, and can greatly reduce the mortality of patients. However, the traditional implantable wireless pulmonary artery pressure monitoring system is made of metal substrate, which has high hardness, poor processability and easy to cause damage to blood vessels. Contents of the invention [0003] Based on this, it is ne...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): A61B5/0215
CPCA61B5/0215A61B5/6876A61B2562/0247A61B2562/12
Inventor 冯雪杜琦峰陈颖
Owner INST OF FLEXIBLE ELECTRONICS TECH OF THU ZHEJIANG
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