Automatic air pressure balance device
An air pressure balance and automatic technology, applied in the direction of cardiac catheterization, etc., can solve the problem of difficulty in guaranteeing, and achieve the effect of ensuring the consistency of air pressure
Inactive Publication Date: 2019-04-16
淄博信质诚检测技术有限公司
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Problems solved by technology
If this process is handed over to manual operation, it is difficult to ensure that the filling degree of the built-in air bag of the simulation arm is consistent, that is, the volume of the gas inside the air bag is consistent every time the sphygmomanometer cuff is installed.
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[0013] In order to make the technical means, creative features, goals and effects achieved by the present invention easy to understand, the present invention will be further described below in conjunction with specific embodiments.
[0014] see figure 1 and figure 2 , the present invention provides a technical solution: an automatic air pressure balance device, comprising a single-chip microcomputer control circuit board 7, the left end of the single-chip microcomputer control circuit board 7 is respectively connected to a normally closed air solenoid valve-2, a micro air pump 6, and a micro pressure sensor 13 through a data line And the microswitch signal interface 15, the right end of the single-chip microcomputer control circuit board 7 is connected to the power supply interface 8 through the data line 4, the power supply interface 8 is used to connect the circuit between the single-chip microcomputer control circuit board 7 and the external power supply, and the upper end...
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The invention provides an automatic air pressure balance device. The automatic air pressure balance device comprises a single chip microcomputer control circuit board, the left end of the single chipmicrocomputer control circuit board is connected with a first normally-closed air electromagnetic valve, a miniature air pump, a miniature pressure sensor and a micro switch signal interface through data lines, a silica gel pipeline is installed at the upper end of the first normally-closed air electromagnetic valve, a four-way air circuit port is formed in the lower end of a second normally-closed air electromagnetic valve through the silica gel pipeline, the lower end of the four-way air circuit port is connected with the miniature pressure sensor, a three-way air circuit port is connected to the right end of the four-way air circuit port, the right end of the three-way air circuit port is connected with the second normally-closed air electromagnetic valve, and the right end of the second normally-closed air electromagnetic valve is connected with the miniature air pump. Compared with the prior art, the automatic air pressure balance device has the advantages of realizing air pressure balance and being high in automation degree.
Description
technical field [0001] The invention is an automatic air pressure balance device, which belongs to the technical field of electronic sphygmomanometers. Background technique [0002] Use the pressure balance analog arm to test the sphygmomanometer. In order to make the built-in airbag and the cuff of the sphygmomanometer closely attached, it is necessary to pre-inflate the airbag, and then release the pressure to balance with the atmospheric pressure. This process can be manually inflated. Electric inflation can also be used. Regardless of manual or electric inflation, the inflation pressure cannot be guaranteed to be the same every time. Therefore, it is difficult to ensure that the tightness between the built-in airbag and the cuff of the sphygmomanometer is consistent every time. When installed on a pressure-balanced analog arm, the built-in air bag of the analog arm needs to maintain a certain degree of filling to ensure that there is a sufficient volume of gas inside to ...
Claims
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IPC IPC(8): A61B5/0225
CPCA61B5/02141A61B5/0225
Inventor 杨晨王攀刘君明王文双
Owner 淄博信质诚检测技术有限公司