CN102657520A

CN102657520A - Sphygmomanometer for purifying blood

Info

Publication number: CN102657520A
Application number: CN2012101560529A
Authority: CN
Inventors: 高光勇; 卢继珍; 李昔华; 李墨奇; 童锦; 王勇清
Original assignee: Chongqing Shanwaishan Science & Technology Co Ltd
Current assignee: Chongqing Shanwaishan Science & Technology Co Ltd
Priority date: 2012-05-18
Filing date: 2012-05-18
Publication date: 2012-09-12

Abstract

The invention discloses a sphygmomanometer for purifying blood, relating to an electronic sphygmomanometer, comprising a power module, wherein the power module supplies power to a pressure sensor; the pressure sensor is connected with a cuff; the pressure sensor detects the air pressure of the cuff; the output end of the pressure sensor is connected with the input end of a controller through an AD (Analogue-to-digital) switching circuit; the output end of the controller is connected with a pressure pump; the controller sends a signal to the pressure pump; the pressure pump is connected with the cuff through an airway tube; the controller is connected with a processor through an RS (Recommend Standard) 232 interface; the controller sends data to the processor; and the processor sends instructions to the controller; having a simple structure, the sphygmomanometer for purifying the blood not only can achieve automatic control and improve working efficiency, but also can be used in combination with a hemodialysis machine to display data on a screen of the hemodialysis machine, with informative display and more convenience in data analyses.

Description

A kind of blood purification is used sphygomanometer

Technical field

The present invention relates to a kind of electric sphygmomanometer, particularly relate to a kind of blood purification and use sphygomanometer.

Background technology

Present electric sphygmomanometer has overcome mercurial sphygmomanometer and has operated shortcomings such as specialized strong, not portable, demonstrates the trend of domesticization; But electric sphygmomanometer is because its portable requirement makes its transient copy amount less, when the patient carries out the associated treatment of blood purification; Need often to measure blood pressure, all need personnel to go operation, just can carry out the measurement of blood pressure; After taking multiple measurements, no curve display function is unfavorable for the analysis of data.

Therefore those skilled in the art are devoted to develop and a kind ofly can detect the user blood pressure automatically on time and detect convenient blood purification and use sphygomanometer.

Summary of the invention

Because the above-mentioned defective of prior art, technical problem to be solved by this invention provides and a kind ofly can detect the user blood pressure automatically on time and detect convenient blood purification and use sphygomanometer.

For realizing above-mentioned purpose, the invention provides a kind of blood purification and use sphygomanometer, comprise power module; Said power module is supplied power to pressure transducer, and pressure transducer connects cuff; Said pressure transducer detects the air pressure of said cuff; The outfan of said pressure transducer connects the input of controller through A/D convertor circuit; The outfan of said controller connects compression pump, and said controller sends signal and gives compression pump; Said compression pump connects said cuff through airway; Said controller is through the RS232 processor of interface connection; Said controller sends data to processor; Said processor sends instruction and gives controller.

Preferable, the outfan of said pressure transducer connects the input of differential amplifier circuit; First outfan of said differential amplifier circuit connects the input of bivalent high-pass filter; The outfan of said bivalent high-pass filter connects the input of amplifying circuit; The outfan of said amplifying circuit connects second-order low-pass filter; The outfan of said second-order low-pass filter connects the first input end of said A/D convertor circuit; Second outfan of said differential amplifier circuit connects second input of said A/D convertor circuit.

Preferable, first outfan of said processor connects the input of display.

Preferable, second outfan of said processor connects the input of audible-visual annunciator.

Preferable, the input of said processor connects the outfan of key-press module.

The invention has the beneficial effects as follows: the present invention is simple in structure, can realize automatization's control, has improved work efficiency; Can combine haemodialysis control unit to use, video data on the screen of haemodialysis control unit, demonstration contains much information; Data analysis is more convenient; On the one hand ensured the safety of patient in therapeutic process, alleviated when measuring blood pressure uncomfortable to the patient, also be convenient to the understanding of medical worker on the other hand the patient body situation; When the patient feels uncomfortable, also can be through the extended line of blood pressure switch, own manual measurement blood pressure makes things convenient for patient itself to understand the health of oneself.

Description of drawings

Fig. 1 is the circuit theory diagrams of the embodiment of the invention one.

Fig. 2 is the circuit theory diagrams of the embodiment of the invention two.

The specific embodiment

Below in conjunction with accompanying drawing and embodiment the present invention is described further:

Embodiment one: as shown in Figure 1, a kind of blood purification is used sphygomanometer, comprises power module 1; Said power module 1 is to pressure transducer 2 power supplies, and pressure transducer 2 connects cuff 3; Said pressure transducer 2 detects the air pressure of said cuff 3; The outfan of said pressure transducer 2 connects the input of controller 5 through A/D convertor circuit 4; The outfan of said pressure transducer 2 connects the input of differential amplifier circuit 8; First outfan of said differential amplifier circuit 8 connects the input of bivalent high-pass filter 9; The outfan of said bivalent high-pass filter 9 connects the input of amplifying circuit 10; The outfan of said amplifying circuit 10 connects second-order low-pass filter 11; The outfan of said second-order low-pass filter 11 connects the first input end of said A/D convertor circuit 4; Second outfan of said differential amplifier circuit 8 connects second input of said A/D convertor circuit 4; Because pressure transducer 2 is detected acoustical signal and pressure signal are arranged simultaneously; In order to reduce to disturb, acoustical signal flows to bivalent high-pass filter 9 from differential amplifier circuit 8, arrives second-order low-pass filter 11 through amplifying circuit 10 then; Get into A/D convertor circuit 4 at last; And pressure signal directly gets into said A/D convertor circuit 4 from differential amplifier circuit 8, and the outfan of A/D convertor circuit 4 connects the input of controller 5, and the signal after A/D convertor circuit 4 will be changed is passed to controller 5; The outfan of said controller 5 connects compression pump 6, and said controller 5 sends signal and gives compression pump 6; Said compression pump 6 connects said cuff 3 through airway, and said controller 5 is through RS232 processor of interface connection 7; Said controller 5 sends data to processor 7; Said processor 7 sends instruction and gives controller 5.

Pressure transducer 2 detects the air pressure in the cuff 3; And detected signal passed to controller 5 through A/D convertor circuit 12, and said controller 5 is a single-chip microcomputer, said controller 5 is according to the air pressure in the signal controlling compression pump that the receives 6 adjustment cufves 3; Said compression pump 6 is an electric air pump; Controller 5 is passed to processor 7 with the cuff atmospheric pressure value that records through the RS232 interface, and said processor 7 is a programmable logic controller (PLC), and said processor 7 calculates systolic pressure, mean pressure and the diastolic pressure of cuff 3; And calculate frequency of pulse, maximal blood pressure and minimal blood pressure; Processor 7 sends the signal that begins to test by setting-up time to controller 5, and controller 5 will be passed to processor 7 from the related data that pressure transducer 2 receives, and so circulation can reach the blood pressure by the automatic test subscriber of time who sets; Save a large amount of manpowers, improved work efficiency.

Embodiment two: as shown in Figure 2; The structure of present embodiment and embodiment one are basic identical; Different is: first outfan of said processor 7 connects the input of display 12; Said display 12 is the LCD liquid crystal display, and second outfan of said processor 7 connects the input of audible-visual annunciator 13, and the input of said processor 7 connects the outfan of key-press module 14.

Controller 5 is passed to processor 7 with the cuff atmospheric pressure value that records through the RS232 interface; Processor 7 is received systolic pressure, mean pressure and the diastolic pressure that calculates cuff 3 after the data; And calculate frequency of pulse, maximal blood pressure and minimal blood pressure, and the mode of the numerical value of calculating with tabulation and curve shown on display 12.

Can be during use through parameters such as 14 setting measurement times of key-press module; Behind the blood pressure of the measuring patient first time; The later the highest pressure of measurement maintains the value of measuring for the first time and adds a fixed value; When if the blood pressure of measuring surpasses this scope, pressure transducer 2 makes processor 7 carry out carrying out sound and light alarm through audible-visual annunciator 13 to the signal of processor 7 feedbacks.

Embodiment three: the structure of present embodiment and embodiment two are basic identical; Different is: with the CPU of haemodialysis control unit as processor; Controller 5 is connected the CPU of haemodialysis control unit through the RS232 interface, and as display, first outfan of the CPU of haemodialysis control unit connects the display screen input of haemodialysis control unit with the display screen of haemodialysis control unit; CPU second outfan of haemodialysis control unit connects the audible-visual annunciator input of haemodialysis control unit; The input of haemodialysis control unit connects the outfan of haemodialysis control unit key-press module, and when the patient carried out the associated treatment of blood purification, patient's blood pressure and pulse value regularly were presented on the screen; And the blood pressure of history and the pulse data mode with tabulation and curve shown, and make the medical worker can understand patient's blood pressure situation dynamically.

More than describe preferred embodiment of the present invention in detail.Should be appreciated that those of ordinary skill in the art need not creative work and just can design according to the present invention make many modifications and variation.Therefore, all technical staff in the art all should be in the determined protection domain by claims under this invention's idea on the basis of existing technology through the available technical scheme of logical analysis, reasoning, or a limited experiment.

Claims

1. a blood purification is used sphygomanometer, comprises power module (1); Said power module (1) is to pressure transducer (2) power supply, and pressure transducer (2) connects cuff (3); Said pressure transducer (2) detects the air pressure of said cuff (3); The outfan of said pressure transducer (2) connects the input of controller (5) through A/D convertor circuit (4); The outfan of said controller (5) connects compression pump (6), and said controller (5) sends signal and gives compression pump (6); Said compression pump (6) connects said cuff (3) through airway; It is characterized in that: said controller (5) is through RS232 processor of interface connection (7); Said controller (5) sends data to processor (7); Said processor (7) sends instruction and gives controller (5).

2. a kind of blood purification as claimed in claim 1 is used sphygomanometer, it is characterized in that: the outfan of said pressure transducer (2) connects the input of differential amplifier circuit (8); First outfan of said differential amplifier circuit (8) connects the input of bivalent high-pass filter (9); The outfan of said bivalent high-pass filter (9) connects the input of amplifying circuit (10); The outfan of said amplifying circuit (10) connects second-order low-pass filter (11); The outfan of said second-order low-pass filter (11) connects the first input end of said A/D convertor circuit (4); Second outfan of said differential amplifier circuit (8) connects second input of said A/D convertor circuit (4).

3. according to claim 1 or claim 2 a kind of blood purification is used sphygomanometer, it is characterized in that: first outfan of said processor (7) connects the input of display (12).

4. use sphygomanometer like claim 1 or 2 or 3 described a kind of blood purifications, it is characterized in that: second outfan of said processor (7) connects the input of audible-visual annunciator (13).

5. a kind of blood purification as claimed in claim 4 is used sphygomanometer, it is characterized in that: the input of said processor (7) connects the outfan of key-press module (14).