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Novel electronic sphygmomanometer

An electronic sphygmomanometer, a new type of technology, applied in the field of medical equipment, can solve the problems of inconvenient carrying, not very wide application, large volume of mercury column sphygmomanometer, etc., and achieve the effect of improving accuracy

Inactive Publication Date: 2016-08-17
NANTONG INST OF TECH
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  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

Due to the large size of the mercury column sphygmomanometer, it is inconvenient to carry, so it is not widely used in daily life.

Method used

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  • Novel electronic sphygmomanometer
  • Novel electronic sphygmomanometer
  • Novel electronic sphygmomanometer

Examples

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Embodiment Construction

[0020] Such as Figure 1 to Figure 5 As shown, it is a novel electronic sphygmomanometer of the present invention, which includes an air pump 1, a fixed deflation valve 2, a cuff 3, a BP300 pressure sensor 4, a preamplifier circuit 5, a filter circuit 6, a secondary amplifier circuit 7, and an Atmega16 Single-chip microcomputer 8 and LED display 9.

[0021] The preamplifier circuit 5 includes three four-way operational amplifiers LM324, the filter circuit 6 uses a second-order infinite gain multi-channel feedback low-pass filter, and the secondary amplifier circuit 7 uses an inverting amplifier circuit.

[0022] The cuff 3 is connected to the air pump 1 and the fixed deflation valve 2, the BP300 pressure sensor 4 is arranged on the cuff 3, the signal output end of the BP300 pressure sensor 4 is connected to the signal input end of the preamplifier circuit 5, and the signal output end of the preamplifier circuit 5 The first signal output end is connected with the first data in...

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Abstract

The invention discloses a novel electronic sphygmomanometer. The novel electronic sphygmomanometer comprises an air pump, a fixed deflation valve, a cuff, a BP 300 pressure sensor, a pre-amplification circuit, a filter circuit, a secondary amplification circuit, an Atmega16 single chip microcomputer and an LED display, wherein the cuff is connected with the air pump and the fixed deflation valve, the BP 300 pressure sensor is arranged on the cuff, a signal output end of the BP 300 pressure sensor is connected with a signal input end of the pre-amplification circuit, one path of a first signal output end of the pre-amplification circuit is connected with a first data input end of the Atmega16 single chip microcomputer, the other path of the first signal output end of the pre-amplification circuit passes through the filter circuit and then is connected with a second data input end of the Atmega16 single chip microcomputer, and a data output end of the Atmega16 single chip microcomputer is connected with a data input end of the LED display. The novel electronic sphygmomanometer has the advantages that the accurate pressure sensing can be realized, the air pressure inside the cuff can be converted into an electric signal, and the electronic measurement for the blood pressure value is realized through the oscillography principle.

Description

technical field [0001] The invention relates to the field of medical instruments, in particular to a novel electronic sphygmomanometer. Background technique [0002] Hypertension is the most common chronic disease and the most important risk factor for cardiovascular and cerebrovascular diseases. Stroke, myocardial infarction, heart failure and chronic kidney disease are its main complications. Practice at home and abroad has proved that hypertension is a disease that can be prevented and controlled. Reducing the blood pressure level of hypertensive patients can significantly reduce stroke and heart disease events, significantly improve the quality of life of patients, and effectively reduce the burden of disease. Therefore, it is particularly important for daily monitoring of blood pressure. [0003] The instrument for measuring blood pressure is called a sphygmomanometer, and the sphygmomanometers seen in daily life are mainly divided into two categories: mercury column s...

Claims

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Application Information

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IPC IPC(8): A61B5/0225A61B5/00
CPCA61B5/0225A61B5/6824
Inventor 卑五九张兰
Owner NANTONG INST OF TECH
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