WO2008122160A1 - Sphygmomanometer and measurement and display method thereof - Google Patents

Abstract

A sphygmomanometer and the measurement and display method thereof. The sphygmomanometer comprises a cuff (1), a control circuit (4), and a display component (2), which are connected in turn. The display component (2) includes an optic column and digital display (3) mounted on the panel thereof. The control circuit (4) is disposed in the housing of the display component (2) for measuring the air pressure in the cuff (1) and driving the optic column and digital display (3) to display the measured blood pressure. The optic column and digital display (3) is selected from a group consisting of an LED column, an LCD column, an LED digital display,an LCD digital display, a combination of an optic column and a digital display, or any combinations of the above.

Description

相关申请的交叉引用

Cross-reference to related applications

 The present application claims priority to Chinese Utility Model Application No. 200720107981.5 filed on Apr. 10, 2007, the entire content of which is hereby incorporated by reference. Technical field

 The invention relates to a sphygmomanometer and a measurement display method thereof, in particular to a sphygmomanometer with a light column digital display and a measurement display method thereof. Background technique

In the prior art, the conventional mercury column sphygmomanometer which is measured according to the Korotkoff sound principle has been banned from production by developed countries and regions due to the mercury pollution in the production environment and the fragility of the product. For sale and use, the European Community has also completely shut down mercury mines and banned all import and export trade of mercury-containing products. With the improvement of people's living standards and the increasing emphasis on environmental protection, prohibiting or restricting the production and sales of mercury column sphygmomanometers is also a trend in the future. In addition, the display color of the traditional mercury column sphygmomanometer is monotonous, and the indicator blood pressure meter is measured by the elastic component. The indication plate is small and the index is dense, which is easy to cause the human factor of visual inspection during the detection, the stability is poor, and the elastic component is easily deformed. This results in large measurement errors and inaccurate readings. The electronic sphygmomanometer that uses the oscillometric principle to measure and display is susceptible to external influences in measurement, and it has problems such as accurate blood pressure measurement and poor reliability. Therefore, there is an urgent need to find a new type of blood pressure detection and display device to improve the accuracy, accuracy, reliability, safety of the measurement and solve the problem of mercury pollution. Summary of the invention The technical problem to be solved by the present invention is to overcome the above-mentioned deficiencies in the prior art, thereby providing a sphygmomanometer with a light column or a light column plus a digital display. It conforms to the principle of non-invasive indirect measurement of Korotkoff sound method recognized by the international medical community. It can easily and efficiently measure and read blood pressure, and replaces the mercury column sphygmomanometer to realize the electronicization of Korotkoff sound method.

 According to an aspect of the invention, a sphygmomanometer is provided, comprising an arm band, a control circuit and a display member, which are sequentially connected, wherein the display member comprises a light column digital display mounted on a panel thereof, and the control circuit And being disposed in the casing of the display component for sensing the air pressure in the armband and driving the light column to display the display, wherein the control circuit comprises: a pressure sensor connected to the armband for sensing An air pressure in the arm band to obtain an analog electrical signal; an analog to digital converter coupled to the pressure sensor for converting the analog electrical signal into a digital electrical signal; a central processing unit coupled to the analog to digital converter, And a display driver coupled to the central processing unit for driving the light column digital display for display according to the driving signal.

 The light column digital display includes any one of an LED light column, an LCD light column, an LED digital display, an LCD digital display, or any combination of the light column and digital display.

 Wherein, when the light column digital display comprises an LED light column or an LCD light column, the position corresponding to the LED light column or the LCD light column on the panel is marked with a scale indicating the measured value.

 Wherein, the LCD light column comprises a long cylindrical LCD screen, and the LCD liquid crystal screen is connected with the display driver to realize the measured value LCD column display under the driving of the display driver.

 Wherein, the LCD light column may further comprise a long cylindrical LED backlight mounted under the LCD liquid crystal screen.

Wherein, the LED light column is provided with a fixed shell, a circuit board, and a fixed shell Provided with a grating, the circuit board is mounted in the fixed casing, and the circuit board is provided with a plurality of LED display devices, one of the plurality of LED display devices being connected to the same terminal and connected to the display driver, the plurality of LEDs The other end of the display device is connected to the display driver, respectively.

 Wherein, the LED light column is provided with a fixed shell, a circuit board and a grating strip, the grating strip is matched with the fixed shell, the grating strip is provided with a grating, the circuit board is installed in the fixed shell, and the circuit board is arranged There are a plurality of LED display devices, one of the plurality of LED display devices being connected to the same terminal and connected to the display driver, and the other end of the plurality of LED display devices being respectively connected to the display driver.

 Wherein, the LED display device is an LED chip or an LED light-emitting tube. According to another aspect of the present invention, a measurement display method of a sphygmomanometer including an arm band, a control circuit, and a display member that are sequentially connected, wherein the measurement display method includes a measurement display step, The blood pressure is measured by sensing the air pressure in the arm band and driving the light column mounted on the display member panel to display the blood pressure.

 Wherein the measurement display step further comprises the steps of: sensing a gas pressure in the arm band by a pressure sensor to obtain an analog electrical signal; converting the analog electrical signal into a digital electrical signal; analyzing and processing the digital electrical signal to generate a driving signal; and driving the light column digital display for display according to the driving signal.

Compared with the prior art, the light column or the light column and the digital display sphygmomanometer of the invention have the following advantages and effects: The structure design is reasonable, conforms to the Kosher sound law principle recognized by the international medical community, does not change the customary use method and the reading mode. It is intuitive and eye-catching, anti-vibration, anti-overload, long service life, high measurement accuracy, good reliability, convenient and efficient measurement of blood pressure, replacing the traditional mercury column sphygmomanometer, and not polluting the environment, and can improve operation. Safety, it is an environmentally friendly product. DRAWINGS

 Figure 1 is a schematic view showing the structure of a sphygmomanometer of the present invention

 2 is a schematic view showing the structure of a control circuit of the sphygmomanometer of the present invention.

 3 is a schematic structural view of an LED light column of the sphygmomanometer of the present invention.

 Fig. 4 is a schematic view showing the structure of another embodiment of the LED light column of the sphygmomanometer of the present invention.

 FIG. 5 is a schematic structural view of a circuit board of the LED light column shown in FIGS.

 Fig. 6 is a flow chart showing the method of measuring and displaying the sphygmomanometer of the present invention. detailed description

 Referring to Fig. 1, a sphygmomanometer with a light column digital display of the present invention includes an arm band 1, a display member 2, and a control circuit 4 (not shown in Fig. 1) provided in the casing of the display unit 2. The light column digital display 3 is mounted on the panel of the display unit 2, including, for example, the light column 3-1 and the digital display 3-2.

 Referring to Fig. 2, the control circuit 4 includes a pressure sensor 4-1, an analog to digital converter 4-2, a central processing unit (CPU) 4-3, and a display driver 4-4 which are sequentially connected. The pressure sensor 4-1 is connected to the arm band 1 for sensing the air pressure in the arm band 1 to obtain an analog electric signal and transmitting it to the analog to digital converter 4-2. The analog-to-digital converter 4-2 is connected to a central processing unit (CPU) 4-3 for converting an analog electrical signal into a digital electrical signal and transmitting it to a central processing unit (CPU). 4-3 Central Processing Unit (CPU) 4- 3 is connected to the display driver 4-4 for analyzing and processing the digital electrical signal to generate a driving signal and transmitting it to the display driver 4-4. The display driver 4-4 is connected to the light column digital display 3 for driving the light column digital display 3 for display according to the driving signal. Control circuit 4 and light column digital display 3 constitute a light column digital display module to replace the traditional mercury column blood pressure meter measurement method.

The light column digital display 3 of the present invention may include any one of an LED light column, an LCD light column, an LED digital display, an LCD digital display, or a light column plus a digital display. random combination. Both the light column and the digital display are connected to the display driver 4-4 of the control circuit 4.

 Referring to Figure 3, a structure of the LED light column of the present invention is shown. The LED light column is provided with a fixed case 5 and a circuit board 6. The fixed case 5 is provided with a grating 5-1, and the grating 5-1 may be disposed on the upper surface of the fixed case 5 or on the lower surface, in the embodiment, on the upper surface. . The circuit board 6 is mounted in the fixed case 5 and is connected to the display driver 4-4 of the control circuit 4.

 Referring to Figure 4, another construction of the LED light column of the present invention is illustrated. The LED light column is provided with a fixed shell 7, a circuit board 6 and a grating strip 8. The grating strip 8 and the fixed shell 7 are matched and connected by a fixing groove 7-3 on the fixed shell 7, and the grating strip 8 is provided with a grating 8-1, a grating 8-1 may be disposed on the upper surface of the grating strip 8 or on the lower surface, in the present embodiment, on the upper surface. The circuit board 6 is mounted in the fixed case 7 and is connected to the display driver 4-4 of the control circuit 4.

 Referring to FIG. 5, the circuit board 6 of the LED light column shown in FIG. 3 and FIG. 4 is provided with an LED display device 6-1. The LED display device 6-1 can be an LED chip or a resin-encapsulated LED light-emitting tube. It is a few or dozens, a few hundred or more. The positive terminals of the LED display device 6-1 are connected together and connected to the display driver 4-4 of the control circuit 4. The negative terminal of the LED display device 6-1 is connected to the display driver 4-4 of the control circuit 4, respectively. Alternatively, the negative terminals of the LED display device 6-1 may be connected together and connected to the display driver 4-4 of the control circuit 4. The positive terminals of the LED display device 6-1 are connected to the display drivers 4-4 of the control circuit 4, respectively. The display driver 4-4 illuminates a corresponding number of LED display devices 6-1 according to the magnitude of the driving signal, thereby forming the LED light column.

 In practical applications, after being driven by the display driver 4-4, the LED chip (LED tube) emits a soft and bright color to achieve a colorful display.

When the light column digital display 3 of the present invention includes an LED light column or an LCD light column, the position of the panel corresponding to the LED light column or the LCD light column is marked with a blood pressure scale. Wherein, the LCD light column is a long cylindrical display band on the LCD screen, and moves up and down within a range marked with a scale value. The LCD light column comprises a long cylindrical LCD screen, and the LCD liquid crystal screen is connected to the display driver to realize the LCD light column display of the measured value under the driving of the display driver. In addition, a long columnar LED backlight can be added under the LCD screen to make the LCD light column display more clear and beautiful.

 The light column digital display 3 of the present invention may also include only a digital display, which may be an LED digital display or an LCD digital display.

 Hereinafter, the use and measurement principle of the sphygmomanometer of the present invention will be described by taking an LED light column as an example:

 The arm band is tied to the medial iliac artery above the arm, and the stethoscope's head is placed under the arm band along the radial artery. The gas cylinder is pressurized and pressurized, at which time the pressure sensor 4-1 senses the air pressure in the arm band and generates an analog signal corresponding to the amount of air pressure in the arm band. The analog electric signal is converted into a digital electric signal by an analog-to-digital converter 4-2, and sent to the CPU central processing unit 4-3 for analysis processing to generate a drive signal. The display driver 4-4 drives, for example, an LED light column for display based on the drive signal, so that the LED light column rises as the air pressure in the arm band increases. When a certain pressure is reached, the air pressure in the arm band squeezes the blood vessel to completely block the blood flow. At this time, there is no sound in the blood flow of the blood tube with a stethoscope. Then, gradually depressurize and decompress, and observe that the LED light column also decreases as the air pressure decreases. When the first sound is heard with a stethoscope or the first sound is sensed, it is considered to be a high pressure, that is, a systolic pressure. Observe the corresponding scale or digital display of the LED light column at this time, that is, measure the high pressure value of blood pressure. Then continue to deflate and decompress, observe that the LED light column continues to drop until the last sound is heard through the stethoscope or the last sound is sensed, that is, the disappearing sound, as a low-pressure diastolic pressure, after which the blood vessel is completely restored. Observe the corresponding scale or digital display of the LED light column at this time, that is, measure the low pressure value of blood pressure.

Therefore, the sphygmomanometer of the present invention conforms to the non-invasive indirect measurement recognized by the international medical community. The Korotkoff sound principle can easily and efficiently measure and read blood pressure, and realize the electronic and intelligent Korotkoff sound method.

 In addition, the display unit of the present invention adopts a novel light column and a light column plus digital display. Among them, the LED light column and the LCD light column have the characteristics of continuous change of display, which is similar to the conventional mercury column display process, but is more clear, eye-catching and lively. The light column and light column plus digital display make the readings more intuitive, replacing the existing mercury column blood pressure meter, avoiding the pollution of mercury to the production environment and the use environment.

 The sphygmomanometer of the present invention is powered by an alternating current or direct current, and provides, for example, a direct current voltage of 6 volts to the light column digital display 3 and the control circuit 4.

 Referring to Fig. 6, the measurement display method of the sphygmomanometer of the present invention includes a measurement display step for sensing the air pressure in the arm band and driving the display of the light column mounted on the panel of the display member for display. Specifically, the measuring and displaying step includes the following steps: Step S1: sensing a gas pressure in the armband by a pressure sensor to obtain an analog electrical signal; Step S2, converting the analog electrical signal into a digital electrical signal; Step S3, The digital electrical signal is analyzed to generate a drive signal; and in step S4, the light column digital display is driven for display according to the drive signal. Industrial applicability

 The circuit of an embodiment of the invention can be implemented using conventional industrial control measurement techniques. Although the present invention has been described with reference to the specific embodiments, those skilled in the art should understand that the invention is not limited to the embodiments described above. Any technical solution or technical feature of the present invention, such as the measurement display step and the equivalent transformation of the light column form or the combination on the sphygmomanometer, should be considered to fall within the scope of the present invention. Therefore, the appended claims are intended to cover all such modifications and alternatives

Claims

Rights request A sphygmomanometer comprising: an arm band, a control circuit, and a display member, which are sequentially connected, wherein the display member includes a light column digital display mounted on a panel thereof, and a machine in which the control circuit is disposed on the display member Inside the casing, it is used to sense the air pressure in the arm band and drive the light column to display and measure blood pressure.  2. The sphygmomanometer according to claim 1, wherein the control circuit comprises:  a pressure sensor coupled to the armband for sensing air pressure in the armband to obtain an analog electrical signal;  An analog to digital converter coupled to the pressure sensor for converting the analog electrical signal into a digital electrical signal;  a central processing unit, coupled to the analog to digital converter, for analyzing and processing the digital electrical signal to generate a driving signal;  And a display driver coupled to the central processing unit for driving the light column digital display for display according to the driving signal.  3. The sphygmomanometer according to claim 2, wherein the light column digital display comprises any one of an LED light column, an LCD light column, an LED digital display, an LCD digital display, or any combination of the light column plus digital display.  4. The sphygmomanometer according to claim 3, wherein when the light column digital display comprises an LED light column or an LCD light column, a position on the panel corresponding to the LED light column or the LCD light column is marked with a blood pressure.  The sphygmomanometer according to claim 3 or 4, wherein the LCD light column comprises a long cylindrical LCD screen, and the LCD liquid crystal screen is connected to the display driver to realize the measurement value driven by the display driver. LCD light column display.  6. The sphygmomanometer according to claim 5, wherein the LCD light column further comprises a long cylindrical LED backlight mounted under the LCD liquid crystal panel. 7. The sphygmomanometer according to claim 3, wherein the LED light column is provided a fixed casing and a circuit board are disposed, the fixed casing is provided with a grating, the circuit board is installed in the fixed casing, and the circuit board is provided with an LED display device, and one of the LED display devices is connected to the same terminal and connected to the display And a driver, the other end of the LED display device being respectively connected to the display driver.  The sphygmomanometer according to claim 3, wherein the LED light column is provided with a fixed shell, a wiring board and a grating strip, the grating strip is matched with the fixed shell, and the grating strip is provided with a grating, The circuit board is mounted in the fixed casing, and the circuit board is provided with LED display devices, one of the LED display devices is connected to the same terminal and connected to the display driver, and the other terminal of the LED display device is respectively connected to the same The display driver.  The sphygmomanometer according to claim 7 or 8, wherein the LED display device is an LED chip or an LED light-emitting tube packaged with a resin.  10. A measurement display method for a sphygmomanometer, comprising: an arm band, a control circuit, and a display member, which are sequentially connected, wherein the measurement display method includes a measurement display step for sensing a position in the arm band The air pressure is driven and the number of light columns mounted on the panel of the display member is displayed to display blood pressure.  11. The measurement display method according to claim 10, wherein the measurement display step further comprises the following steps:  Sensing the air pressure in the armband to obtain an analog electrical signal through a pressure sensor; converting the analog electrical signal into a digital electrical signal;  Generating a driving signal by analyzing the digital electrical signal;  The light column digital display is driven to display according to the driving signal.