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Preparation method of flexible sensor for monitoring respiration

A flexible sensor and flexible technology, which can be used in sensors, evaluation of respiratory organs, diagnostic recording/measurement, etc., can solve the problems of high cost, complex sensor manufacturing process and large volume, and achieve low manufacturing cost, thin overall thickness and small volume. Effect

Pending Publication Date: 2021-11-19
NORTHWESTERN POLYTECHNICAL UNIV
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0003] The purpose of the present invention is to provide a method for preparing a flexible sensor for monitoring breathing, so as to solve the problems of complex manufacturing process, high cost and large volume of existing sensors

Method used

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  • Preparation method of flexible sensor for monitoring respiration
  • Preparation method of flexible sensor for monitoring respiration
  • Preparation method of flexible sensor for monitoring respiration

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0043] The technical scheme that the present invention solves the problems of the technologies described above is as follows:

[0044] The invention provides a method for preparing a flexible sensor for monitoring respiration, referring to figure 1 Shown, described flexible sensor preparation method comprises:

[0045] S1: preparing a target mask plate and an incompletely cured flexible substrate 1;

[0046] S2: Prepare a flexible sensitive unit 2 according to the target mask and the incompletely cured flexible substrate 1;

[0047] S3: preparing signal lines 3 at both ends of the flexible sensitive unit 2;

[0048] S4: According to the flexible sensitive unit 2, prepare the packaging flexible layer 4.

[0049] The present invention has the following beneficial effects:

[0050] 1. The flexible sensor produced by the present invention has the advantages of good tensile performance, strong wearability, low production cost, simple process, high stability, small volume, thin ...

Embodiment 2

[0081] A method for preparing a flexible sensor for monitoring breathing, comprising the following steps: making a mask plate: a cutting machine cuts a required shape on an aluminum plate to prepare a mask plate, cleans it with deionized water, and dries it at 80° C. for two hours. Preparation of flexible substrate 1: spray release agent evenly on the mask plate and aluminum substrate, then heat in an oven at 60-100°C for 1-2 hours, and then spin-coat the flexible polymer solution onto the smooth substrate. Making the flexible sensitive unit 2: attach the aluminum reticle on the uncured PDMS solution, fill the CNTs into the groove of the reticle, and then heat in an oven at 80°C for 2 hours, and finally remove the flexible sensitive unit 2 from the reticle and peel off the substrate. Lead wires: use conductive silver paste or conductive carbon oil to connect copper wires to both ends of the sensitive unit, and heat at 120°C for 1-2 hours to cure the conductive silver paste or ...

Embodiment 3

[0083] Referring to Example 1, the flexible polymer can also be replaced by polyimide, polydimethylsiloxane, polyurethane; the conductive material can also be replaced by single-walled carbon nanotubes, multi-walled carbon nanotubes, Industrialized carbon nanotubes, graphene, carbon black, carbon fibers, metal nanowires; the physical or chemical etching method can also be replaced by laser etching, acid-base solution etching. The substrate can also be replaced with cardboard, glass plate, or plastic plate.

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Abstract

The invention discloses a preparation method of a flexible sensor for monitoring respiration. The preparation method of the flexible sensor comprises the following steps: S1, preparing a target mask and an incompletely cured flexible substrate; S2, preparing a flexible sensing unit according to the target mask plate and the incompletely cured flexible substrate; S3, respectively preparing signal lines at two ends of the flexible sensing unit; and S4, preparing a packaging flexible layer according to the flexible sensing unit. According to the preparation method of the flexible sensor, the problems that an existing sensor is complex in manufacturing process, high in cost and large in size can be solved.

Description

technical field [0001] The invention relates to the technical field of sensor preparation, in particular to a method for preparing a flexible sensor for monitoring breathing. Background technique [0002] Respiratory frequency, as a physiological parameter, is a sensitive indicator of acute respiratory dysfunction. It is one of the important vital signs. Part of the existing schemes discloses a breathing circuit, a ventilator and a sensor data transmission method. The breathing circuit includes two connection terminals, a heating unit, a controller, and a sensor. Although the data obtained from the air flow in this invention is richer and more accurate, it brings great inconvenience to the user because the air flow needs to be obtained from the mouth and nose. Others relate to a breathing monitoring sensor and a breathing guiding system and method, including a breathing monitoring sensor, a data analysis system, a main controller, a display device and a breathing guiding ...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): A61B5/08A61B5/00
CPCA61B5/0816A61B5/6801A61B5/6802A61B5/6803A61B2562/12A61B2562/164
Inventor 王学文张羽杨慧杨鹏飞
Owner NORTHWESTERN POLYTECHNICAL UNIV
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