CN102813507A - Device and method for measuring blood pressure value of human body when human body is in stable state - Google Patents

Abstract

The invention relates to a device and a method for measuring the blood pressure value of a human body in a steady state, which relate to the fields of electronic technology and computer application. The device includes a data processing module, an input module, an output module and a sphygmomanometer control module. The method is as follows: the measurer inputs the instruction of "start measuring" through the input module; the data processing module drives the sphygmomanometer to measure through the sphygmomanometer control module, reads the result of each measurement of the sphygmomanometer, and calculates according to the blood pressure fluctuation range of the measurer Dynamically judge the number of measurements required, and then guide the measurer to perform multiple measurements according to the above judgment results, and at the same time automatically calculate the final result of this blood pressure measurement according to the relationship between the data obtained from the above multiple measurements, and finally output the final measurement results through module output. The present invention can reduce the measurement time for the measurers with stable blood pressure fluctuations, and improve the accuracy of the blood pressure measurement results by dynamically increasing the corresponding measurement times for the measurers with large blood pressure fluctuations.

Description

A device and method for measuring the blood pressure value of a human body in a steady state

technical field

The present invention relates to the field of electronic technology and computer application; in particular to a device and method for measuring the blood pressure value in the steady state of the human body; in particular, it can dynamically determine the required number of measurements according to the measurer's blood pressure fluctuation range, and automatically guide the measurer to press The device and method for measuring the blood pressure value in the steady state of the human body by performing multiple measurements on the above judgment results, and automatically calculating the final blood pressure value of this measurement according to the relationship between the data obtained from the above multiple measurements.

Background technique

Human blood pressure is a dynamic physiological index. In order to obtain more accurate blood pressure measurement results, it is necessary to perform multiple measurements at intervals and calculate the measurement results. When measuring blood pressure, if the number of times to be measured is manually judged and the results are calculated, ordinary measurers generally lack the knowledge to judge the number of blood pressure measurements, and medical workers are easily affected by human subjective factors when judging the number of blood pressure measurements. The accuracy and comparability of blood pressure data are poor. Therefore, the use of machines to automatically determine the number of blood pressure measurements required and calculate the final measurement results is the development direction of blood pressure measurement technology. At present, the known electronic sphygmomanometer mainly adopts two methods in which the number of measurements is preset by the measurer, both of which have obvious deficiencies:

1. It is preset to measure only once, and the measurement result will be displayed directly after the measurement is finished. Since this measurement method is only measured once, the probability of obtaining more accurate measurement results is very low.

2. Preset a value greater than 1 as the number of measurements for this measurement, and measure according to the set number of times. After all the measurements are completed, the measurement results will be calculated according to the preset algorithm. Since the number of measurements of this measurement method has been preset, the measurement time of the measurer with relatively stable blood pressure is wasted. At the same time, the measurer with large blood pressure fluctuations may need to increase the corresponding number of measurements on the basis of the preset value to find more accurate measurements.

Contents of the invention

In order to overcome the above-mentioned shortcomings of existing electronic sphygmomanometers, the present invention provides a new device and method for measuring the blood pressure value of the human body in a steady state, which can dynamically determine the number of measurements required according to the blood pressure fluctuation range of the measurer, and guide the measurer to follow the above-mentioned steps. Multiple measurements are carried out for judging the results, and the final result of this blood pressure measurement is automatically calculated according to the interrelationship of the data obtained from the above multiple measurements. The present invention can reduce the measurement time for the measurers with stable blood pressure fluctuations, and improve the accuracy of the blood pressure measurement results by dynamically increasing the corresponding measurement times for the measurers with large blood pressure fluctuations.

The technical solution adopted by the present invention to solve the technical problem is: the data processing module is connected with the input module, the output module and the sphygmomanometer control module, and the sphygmomanometer control module is connected with the electronic sphygmomanometer. The measurer inputs the instruction of "start measurement" through the input module, and the data processing module drives the electronic sphygmomanometer through the sphygmomanometer control module to start the first measurement after receiving the instruction to start measurement. After the first measurement, the data processing module obtains the measurement result through the sphygmomanometer control module, and then starts to drive the electronic sphygmomanometer to start the second measurement and obtain the measurement result. After the two measurements are completed, the data processing module subtracts the systolic blood pressure and the diastolic blood pressure of the two measurement results respectively to obtain an absolute value. If the two absolute values are both less than or equal to 5, it means that the blood pressure of the measurer has a small fluctuation range and the blood pressure is relatively stable. The data processing module takes the average value of the two blood pressures as the final measurement result, and outputs the final measurement result through the output module. If at least one of the two absolute values is greater than 5, it means that the blood pressure of the measurer fluctuates greatly and the blood pressure is not stable yet. The data processing module drives the electronic sphygmomanometer to start the third measurement through the sphygmomanometer control module, and then compares the first The algorithm of the first and second measurement results is used to compare the second and third measurement results, and so on, until the absolute values of the systolic and diastolic blood pressure values of the last two measurement results are less than or equal to the same time 5. The data processing module takes the average value of the last two blood pressures as the final measurement result, and outputs the final measurement result through the output module.

The beneficial effect of the present invention is that, while using the existing sphygmomanometer to measure blood pressure, according to the blood pressure fluctuation range of the measurer, dynamically judge the number of times the measurer needs to measure, and automatically calculate the final result of this measurement, which is stable for blood pressure fluctuations. The measurer can reduce the measurement time, and the measurer who has a large blood pressure fluctuation can improve the accuracy of the blood pressure measurement result by dynamically increasing the corresponding measurement times.

Description of drawings

The present invention will be further described below in conjunction with the accompanying drawings and embodiments.

Fig. 1 is the block diagram of the device for measuring the blood pressure value of human body steady state in the present invention;

Fig. 2 is a flow chart of the method of the device for measuring the blood pressure value in the steady state of the human body according to the present invention.

In Fig. 1, the device (10) for measuring blood pressure in a steady state of a human body includes a data processing module (20), an input module (40), an output module (30) and a sphygmomanometer control module (50). The function of the data processing module (20) is data calculation, data storage, receiving instructions sent by the input module (40), sending output content to the output module (30), and driving the electronic sphygmomanometer through the sphygmomanometer control module (50). It can be a single-chip microcomputer or a PC motherboard with a CPU. The function of the input module (40) is to input the instruction of the measurer to the data processing module (20), which can be a button or a touch screen. The function of the output module (30) is to output measurement results, which can be a display or a printer. The sphygmomanometer control module (50) is connected to an external electronic sphygmomanometer (60) or an electronic sphygmomanometer module (60), and it has 3 functions: 1 to obtain the working state of the sphygmomanometer; 2 to drive the sphygmomanometer to measure; 3 to read the sphygmomanometer to measure result. According to different electronic sphygmomanometers (60), the control modes of the sphygmomanometer control module (50) to the electronic sphygmomanometer (60) are also different. For an electronic sphygmomanometer (60) with a serial port, infrared, bluetooth or USB communication interface, the sphygmomanometer control module (50) can directly obtain the working status of the sphygmomanometer through the corresponding communication port, drive the sphygmomanometer to measure and read the sphygmomanometer measurement result. For electronic sphygmomanometers (60) that do not have a communication interface, or have a communication interface but cannot grasp the communication interface protocol, the sphygmomanometer control module (50) can read whether the solenoid valve of the electronic sphygmomanometer (60) has voltage or not through a switch value or an analog value. To obtain the working state of whether the sphygmomanometer (60) is being inflated, the micro-touch switch of the sphygmomanometer (60) can be controlled by a relay switch or a photocoupler switch to drive the electronic sphygmomanometer (60) for measurement, which can be completed in the electronic sphygmomanometer Afterwards, the digital display of the sphygmomanometer (60) is photographed by the miniature camera carried by the sphygmomanometer control module (50), and then the OCR recognizes the numbers in the photo to read the measurement result of the sphygmomanometer.

Detailed ways

Take the electronic sphygmomanometer connected with the USB communication interface of the present invention to measure blood pressure as an embodiment. In FIG. 2 , the measurer triggers the "start measurement" instruction (201) by clicking on the touch screen or the micro-touch switch. After the data processing module receives the "start measurement" command, it sends an inflation command (202) to the electronic sphygmomanometer through the USB communication interface on the sphygmomanometer control module, and the electronic sphygmomanometer starts a measurement. The data processing module obtains the working state of the electronic sphygmomanometer through the USB communication interface on the sphygmomanometer control module. When the sphygmomanometer control module learns that the electronic sphygmomanometer has completed a measurement (203), the data processing module reads The current measurement result (204) of the electronic sphygmomanometer. The data processing module judges whether this measurement is the first measurement (205), if it is the first measurement, then returns to step (202), that is, sends an inflation instruction to the electronic sphygmomanometer through the sphygmomanometer control module, and the electronic sphygmomanometer starts to lower One measurement. If it is not the first measurement, the data processing module subtracts the systolic blood pressure and the diastolic blood pressure from the last two measurement results respectively to obtain an absolute value (206). If the above two absolute values are ≤5 (207) at the same time, the average value of the last two measurement results is taken as the final measurement result (208), and the data processing module outputs the final measurement result (209) through the output module, which can be displayed or printed Come out, and the measurement ends (210). If at least one of the absolute values of the systolic and diastolic blood pressure values subtracted from the last two measurement results is greater than 5 (207), then return to step (202), that is, send inflation to the electronic sphygmomanometer through the sphygmomanometer control module instruction, the electronic sphygmomanometer starts the next measurement. By analogy, until the absolute value of the systolic blood pressure value and the diastolic blood pressure value of the last two measurement results are respectively subtracted and less than or equal to 5 (207), the data processing module takes the blood pressure average value of the last two times as the final measurement result (208 ), and output the final measurement result through the output module (209), and the measurement ends (210).

Claims (3)

1. device of measuring human body steady statue pressure value; Comprise data processing module, input module, output module and sphygomanometer control module; It is characterized in that: data processing module connects input module, output module and sphygomanometer control module, and the sphygomanometer control module connects the external electrical sphygomanometer.

2. the device of measurement human body steady statue pressure value according to claim 1; It is characterized in that: the instruction that the gauger " begins to measure " through the input module input, data processing module begin to measure for the first time through sphygomanometer control module driving electric sphygmomanometer after receiving the instruction that begins to measure; After measuring end for the first time, data processing module obtains this measurement result through the sphygomanometer control module, and begin to drive electric sphygmomanometer then and begin to measure for the second time, and the acquisition measurement result; After twice measurement finished, data processing module took absolute value after the systolic pressure value of twice measurement result and diastolic blood pressure values are subtracted each other respectively; If two absolute values are all smaller or equal to 5, data processing module is got twice mediodespidine average as final measurement, and through output module final measurement is exported; If two absolute values have one at least greater than 5; Data processing module drives electric sphygmomanometer through the sphygomanometer control module to begin to measure for the third time; Then by above-mentioned relatively for the first time with the second time measurement result algorithm come comparison for the second time with for the third time measurement result; By that analogy; Absolute value after the systolic pressure value of last twice measurement result and diastolic blood pressure values subtract each other respectively is simultaneously smaller or equal to 5, and data processing module is got last twice mediodespidine average as final measurement, and through output module final measurement is exported.

3. the method for the device of measurement human body steady statue pressure value according to claim 1 is characterized in that concrete steps are following: the first step: the gauger triggers " beginning to measure " instruction through input module;

Second step: data processing module sends the inflation instruction through the sphygomanometer control module to electric sphygmomanometer after receiving " beginning to measure " instruction, electric sphygmomanometer begins one-shot measurement;

The 3rd step: data processing module learns that through the sphygomanometer control module electric sphygmomanometer accomplished one-shot measurement;

The 4th step: data processing module reads this measurement result of electric sphygmomanometer through the sphygomanometer control module;

The 5th step: data processing module judges that whether this is measured is to measure for the first time, if measure for the first time, then gets back to for second step, and down carries out successively set by step; If be not to measure for the first time, then carried out for the 6th step;

The 6th step: data processing module takes absolute value after the systolic pressure value of last twice measurement result and diastolic blood pressure values are subtracted each other respectively;

The 7th step: data processing module is judged, if two absolute values of the 6th step gained have one at least greater than 5, then gets back to for second step, and down carries out successively set by step; If two absolute values of the 6th step gained simultaneously≤5, then carried out for the 8th step;

The 8th step: data processing module is got the meansigma methods of last twice measurement result as final measurement;

The 9th step: data processing module is exported final measurement through output module;

The tenth step: this measures end.

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