Electronic mercury sphygmomanometer

Abstract

This invention relates to an electronic mercury sphygmomanometer, comprising a folding housing, an upper housing, a lower housing, a measurement display module, and a measurement control module. The folding housing is located on the upper part of the lower housing and is rotatable. The lower housing is an open rectangular box, and the folding housing is folded into this rectangular box when not in use. The upper housing is a cover plate located at the opening of the lower housing. The measurement display module is located on the folding housing, and the measurement control module is located inside the lower housing. The measurement display module is connected to the measurement control module, and its operation is controlled by the measurement control module. This invention enables automatic measurement and automatic reporting of measurement values. It can measure blood pressure, heart rate, and pulse strength, and can accurately measure human blood pressure even with long-term use. It can be widely used in the medical and health field.

Description

Technical Field

[0001] This invention relates to a medical device, and more particularly to an electronic mercury sphygmomanometer for use in the field of medical and health care. Background Technology

[0002] Currently, blood pressure monitors on the market are divided into two categories: mercury sphygmomanometers and electronic sphygmomanometers. Mercury sphygmomanometers are accurate when used, but are cumbersome to operate; while electronic sphygmomanometers are more convenient to use, but after prolonged use, the measurement deviation becomes large, which is unsafe, and they cannot measure the strength of the pulse. Summary of the Invention

[0003] To address the aforementioned problems, the purpose of this invention is to provide an electronic mercury sphygmomanometer that can automatically measure and report measurement values, and can measure blood pressure, heart rate, and pulse strength. It can also accurately measure human blood pressure even with long-term use.

[0004] To achieve the above objectives, the present invention adopts the following technical solution: an electronic mercury sphygmomanometer, comprising a folding shell, an upper shell, a lower shell, a measurement display module, and a measurement control module; the folding shell is disposed on the upper part of the lower shell and is rotatable on the lower shell; the lower shell is an open rectangular box, and the folding shell is folded into the rectangular box when not in use; the upper shell is a cover plate disposed at the opening of the lower shell; the measurement display module is disposed on the folding shell, and the measurement control module is disposed inside the lower shell, and the measurement display module is connected to the measurement control module, and its operation is controlled by the measurement control module.

[0005] Furthermore, the folding housing is a rectangular box; the measurement and display module includes a measuring tube and a resistance plate disposed inside the folding housing, as well as a cylindrical shaft; a cylindrical shaft is respectively disposed on both sides of the bottom of the folding housing, and the folding housing is connected to the lower housing through the cylindrical shaft.

[0006] Furthermore, the resistance plate is provided with a measuring tube, resistors, a first resistance wire, and a second resistance wire; several small holes are respectively provided on both sides of the measuring tube, and the small holes on both sides are staggered; the measuring tube is located at the center of the resistance plate, and the first end of the first resistance wire is inserted into the bottommost small hole on one side of the measuring tube and sealed; the second end of the first resistance wire is connected to the measurement control module; except for the bottommost small hole, resistors are respectively provided in each of the small holes on both sides of the measuring tube, and the first end of each resistor is provided on the side wall of the measuring tube through the small hole, and the first end of the resistor seals the small hole; the second end of each resistor is connected in parallel to one end of the second resistance wire, and the other end of the second resistance wire is connected to the measurement control module.

[0007] Furthermore, the measuring tube is a long straight glass tube; the top of the measuring tube is a sealed end, and the bottom is provided with a right-angled lower measuring tube inlet.

[0008] Furthermore, the measurement control module includes an operation control board, wires, an air pump, a four-way pressure guide tube, a mercury tank, a pressure guide tube, a strap, an exhaust head, and a battery pack. The operation control board is a double-layered rectangular board, with the upper layer being the operation board and the lower layer being the control board. The operation board and the control board are connected and interact with each other via the wires. The control board is connected to the second end of the first resistance wire and the other end of the second resistance wire. The outlet of the air pump is connected to the first end of the four-way pressure guide tube, and the micro motor of the air pump is connected to the control board via the wires. The second end of the four-way pressure guide tube is connected to the inlet of the mercury tank, and the outlet of the mercury tank is connected to the first end of the pressure guide tube. The second end of the pressure guide tube is connected to the lower inlet of the measuring tube at the bottom of the measuring tube. The third end of the four-way pressure guide tube is connected to the strap, and the fourth end is connected to the exhaust head. The battery pack is connected to the control board via the wires to power the control board.

[0009] Furthermore, the mercury tank has a three-layer structure, wherein the upper layer is a gas collection chamber, the middle layer is a latex membrane, and the lower layer is a mercury tank; the mercury tank contains liquid mercury as a measuring medium; the gas collection chamber and the mercury tank are isolated by the latex membrane.

[0010] Furthermore, an inlet is provided on the side wall of the gas collecting chamber, through which it is connected to the second end of the four-way pressure guiding pipe; an outlet is provided on the side wall of the mercury tank, through which it is connected to the first end of the pressure guiding pipe.

[0011] Furthermore, the exhaust head is formed by connecting two cylinders of different thicknesses to create a hollow channel, and a partition is provided at the connection point of the two cylinders, with multiple micro-holes on the partition serving as exhaust ports.

[0012] Furthermore, a charging port is provided on the side wall of the lower housing.

[0013] Furthermore, a shaft hole is provided on each of the two sides of the upper end of the lower housing, and the shaft hole is fitted with a cylindrical shaft on the folding housing.

[0014] Due to the adoption of the above technical solutions, this invention has the following advantages: It can achieve automatic measurement and automatic reporting of measurement values, and can measure blood pressure, heart rate, and pulse strength. Even with long-term use, it can accurately measure human blood pressure. It can be widely applied in the medical and health field. Attached Figure Description

[0015] Figure 1A This is a schematic diagram of the overall structure of the present invention.

[0016] Figure 1B This is a schematic diagram of the upper shell structure of the present invention.

[0017] Figure 2A This is a schematic diagram of the folding shell structure of the present invention.

[0018] Figure 2B This is an overall exploded view of the present invention.

[0019] Figure 3A This is a schematic diagram of the resistor plate structure of the present invention.

[0020] Figure 3B This is an exploded view of the resistor plate of the present invention.

[0021] Figure 4 This is a schematic diagram of the measurement and control module structure of the present invention.

[0022] Figure label:

[0023] 1-Folding housing; 2-Lower housing; 3-Upper housing; 4-Measuring tube; 5-Resistance plate; 6-Cylindrical shaft; 7-First resistance wire; 8-Resistance; 9-Second resistance wire; 10-Small hole; 11-Measuring circuit; 12-Lower inlet of measuring tube; 13-Operation control board; 131-Operation board; 132-Control board; 14-Wire; 15-Air pump; 16-Four-way pressure guide tube; 17-Mercury tank; 171-Gas collection chamber; 172-Latex diaphragm; 173-Mercury tank; 174-Mercury liquid; 175-Gas collection chamber inlet; 176-Mercury tank outlet; 18-Pressure guide tube; 19-Strap; 20-Exhaust head; 21-Battery pack; 22-Charging port; 23-Shaft hole. Detailed Implementation

[0024] To make the objectives, technical solutions, and advantages of the embodiments of the present invention clearer, the technical solutions of the embodiments of the present invention will be clearly and completely described below with reference to the accompanying drawings. Obviously, the described embodiments are only some, not all, of the embodiments of the present invention. All other embodiments obtained by those skilled in the art based on the described embodiments of the present invention are within the scope of protection of the present invention.

[0025] In the description of this invention, it should be understood that the terms "upper," "lower," "inner," "outer," etc., indicate the orientation or positional relationship based on the orientation or positional relationship shown in the accompanying drawings. They are only for the convenience of describing this invention and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, or be constructed and operated in a specific orientation. Therefore, they should not be construed as limitations on this invention.

[0026] like Figures 1A to 2B As shown, this invention provides an electronic mercury sphygmomanometer, which includes a folding housing 1, a lower housing 2, an upper housing 3, a measurement display module, and a measurement control module. The folding housing 1 is located on top of the lower housing 2 and can rotate on the lower housing 2 to achieve folding. The lower housing 2 is an open rectangular box, and the folding housing 1 is folded into this rectangular box when not in use. The upper housing 3 is a cover plate located at the open end of the lower housing 2. The measurement display module is located on the folding housing 1, and the measurement control module is located inside the lower housing 2. The measurement display module is connected to the measurement control module, and its operation is controlled by the measurement control module.

[0027] In a preferred embodiment, the folding housing 1 is a rectangular box. For example... Figure 3A , Figure 3B As shown, the measurement and display module includes a measuring tube 4 and a resistance plate 5 disposed within the folding housing 1, as well as a cylindrical shaft 6. A cylindrical shaft 6 is respectively disposed on both sides of the bottom of the folding housing 1, and the folding housing 1 is connected to the lower housing 2 via these cylindrical shafts 6. Wherein:

[0028] The resistance plate 5 is a circuit board on which a measuring tube 4, resistors 8, a first resistance wire 7, and a second resistance wire 9 are mounted. Several small holes 10 are provided on both sides of the measuring tube 4, and the holes 10 on both sides are staggered, meaning they are not on the same horizontal line. The measuring tube 4 is located at the center of the resistance plate 5. The first end of the first resistance wire 7 is inserted into and sealed in the bottommost small hole 10 on one side of the measuring tube 4; the second end of the first resistance wire 7 is connected to the measurement control module. Except for the bottommost small hole 10, resistors 8 are respectively installed in the small holes 10 on both sides of the measuring tube 4. The first end of each resistor 8 is mounted on the side wall of the measuring tube 4 through the small hole 10, and the first end of the resistor 8 seals the small hole 10; the second end of each resistor 8 is connected in parallel to one end of the second resistance wire 9, and the other end of the second resistance wire 9 is connected to the measurement control module. The resistors 8, the first resistance wire 7, the second resistance wire 9, and the measurement control module constitute a measurement circuit 11, which has a DC voltage of 1V.

[0029] Preferably, the measuring tube 4 is a long straight glass tube, and the top of the measuring tube 4 is a sealed end, and the bottom is provided with a right-angled measuring tube lower inlet 12.

[0030] Preferably, the vertical distance between the small holes 10 on the same side of the measuring tube 4 is 2 mm. Since the small holes 10 on both sides of the measuring tube 4 are not on the same horizontal line, the vertical distance between adjacent small holes 10 on both sides of the measuring tube 4 is preferably 1 mm.

[0031] In a preferred embodiment, such as Figure 1A , Figure 2B and Figure 4As shown, the measurement control module includes an operation control board 13, wires 14, an air pump 15, a four-way pressure guide tube 16, a mercury tank 17, a pressure guide tube 18, a strap 19, an exhaust head 20, and a battery pack 21. The operation control board 13 is a double-layered rectangular board; the upper layer is the operation board 131, and the lower layer is the control board 132. The operation board 131 and the control board 132 are connected via wires 14 and exchange information. The control board 132 is connected to the second end of the first resistance wire 7 and the other end of the second resistance wire 9 in the measurement display module. The outlet of the air pump 15 is connected to the first end of the four-way pressure guide tube 16, and the micro motor of the air pump 15 is connected to the control board 132 via wires 14. The control board 132 controls the operating state of the air pump 15. The second end of the four-way pressure guide tube 16 is connected to the inlet of the mercury tank 17, the outlet of the mercury tank 17 is connected to the first end of the pressure guide tube 18, and the second end of the pressure guide tube 18 is connected to the lower inlet 12 of the measuring tube 4. The third end of the four-way pressure guide tube 16 is connected to the strap 19, and the fourth end is connected to the exhaust head 20. The battery pack 21 is connected to the control board 132 via the wire 14 to supply power to the control board 132; preferably, the DC voltage of the battery pack 21 is 5V.

[0032] Preferably, the mercury tank 17 has a three-layer structure: an upper layer is a gas collecting chamber 171, a middle layer is a latex diaphragm 172, and a lower layer is a mercury tank 173 containing mercury liquid 174 as the measuring medium. The gas collecting chamber 171 and the mercury tank 173 are isolated by the latex diaphragm 172. An inlet 175 is provided on the side wall of the gas collecting chamber 171, which is connected to the second end of the four-way pressure guiding pipe 16. An outlet 176 is provided on the side wall of the mercury tank 173, which is connected to the first end of the pressure guiding pipe 18.

[0033] Preferably, the air pump 15 is a miniature electric air pump. The strap 19 is a hollow bag for binding the arm.

[0034] Preferably, the exhaust head 20 is formed by connecting two cylinders of different thicknesses to create a hollow channel, and a partition is provided at the connection point of the two cylinders, with multiple micro-holes on the partition serving as exhaust ports.

[0035] Preferably, the operation panel 131 is equipped with a display screen and operation buttons.

[0036] Preferably, the operation control panel 13 is installed at the lowest end inside the lower housing 2, the battery pack 21 is installed at the rear of the operation control panel 13, the air pump 15 and the mercury tank 17 are installed at the upper part inside the lower housing 2, and the strap 19 is installed at the middle part inside the lower housing 2.

[0037] In the above embodiment, a charging port 22 is provided on the side wall of the lower housing 2, and the battery pack 21 is charged through the charging port 22.

[0038] In the above embodiments, a shaft hole 23 is provided on both sides of the upper end of the lower housing 2. The shaft hole 23 is fitted with the cylindrical shaft 6 on the folding housing 13 to connect the folding housing 13 to the lower housing 2.

[0039] In the above embodiments, the angle between the folding housing 1 and the lower housing 2 is 90 degrees. The resistance value of each resistor 8 disposed within the folding housing 1 is preferably 10000 ohms.

[0040] In summary, when using this invention, the folding housing 1 needs to be rotated from a horizontal position to a vertical position before the instrument is operated. First, the folding housing 1 is erected, and then the strap 19 is tied to the arm. The operation is started via the control panel 131, the control panel 132 is turned on, and the air pump 15 is started. The air pump 15 pressurizes the strap 19 and the mercury tank 17, and the gas in the mercury tank 17 compresses the mercury liquid 174 in the mercury trough 173, causing the mercury liquid 174 to be output from the pressure guide tube 18 to the measuring tube 4. The mercury liquid 174 in the measuring tube 4 rises continuously, and at the same time, the mercury liquid 174 continuously conducts the resistance 8 on both sides of the measuring tube 4, and the current in the measuring circuit 11 also changes accordingly and is transmitted to the control panel 132. When the mercury liquid 174 in the measuring tube 4 rises to its highest level, the air pump 15 stops pumping air, and the exhaust head 20 continuously exhausts air (the air pump 15 is also exhausting air while pumping air). The mercury liquid 174 in the measuring tube 4 continuously decreases. When it decreases to the human blood pressure area, the mercury liquid 174 in the measuring tube 4 fluctuates drastically. The current in the measuring circuit 11 also fluctuates drastically. The control board 132 obtains the human blood pressure value, heart rate, and pulse strength by measuring the upper and lower limits of the drastic fluctuations in the current in the measuring circuit 11 and the frequency of the fluctuations. The values ​​are then displayed on the operation board 131 and announced via voice.

[0041] The current in measuring circuit 11 is obtained by dividing the voltage by the resistance. The relationship between current and blood pressure is as follows:

[0042]

[0043] The measurement process of mercury liquid 174 is as follows: mercury liquid 174 rises uniformly from the lowest point of measuring tube 4 to the highest point of measuring tube 4, and then falls uniformly from the highest point of measuring tube 4 to the lowest point of measuring tube 4. During this process, mercury liquid 174 goes from connecting the lowest resistance 8 of measuring tube 4 to connecting the highest resistance 8 of measuring tube 4, and then from disconnecting the highest resistance 8 of measuring tube 4 to disconnecting the lowest resistance 8 of measuring tube 4.

[0044] The above embodiments are only used to illustrate the present invention. The structure, size, setting position and shape of each component can be changed. Based on the technical solution of the present invention, any improvement and equivalent transformation of individual components made according to the principle of the present invention should not be excluded from the protection scope of the present invention.

Claims

1. An electronic mercury sphygmomanometer, characterized by, The utility model relates to a folding shell, upper shell, lower shell, measurement display module and measurement control module. The folding shell is arranged on the upper part of the lower shell and can rotate on the lower shell; the lower shell is an open rectangular box body, and the folding shell is folded in the rectangular box body when idle; the upper shell is a cover plate arranged at the opening of the lower shell; the measurement display module is arranged on the folding shell, the measurement control module is arranged in the lower shell, and the measurement display module is connected with the measurement control module and controlled by the measurement control module to work; The folding shell is a rectangular box body; the measurement display module comprises a measurement tube and a resistance plate arranged in the folding shell and a cylindrical shaft; the folding shell is provided with a cylindrical shaft on each side of the bottom, and the folding shell is connected to the lower shell through the cylindrical shaft; The resistance plate is a circuit board provided with the measurement tube, resistance, first resistance lead and second resistance lead; the resistance, first resistance lead, second resistance lead and measurement control module form a measurement loop, the current of the measurement loop is obtained according to voltage divided by resistance, and the current value corresponds to the blood pressure value. The measurement tube is provided with a plurality of small holes on each side, and the small holes on the two sides are arranged alternately; the measurement tube is arranged at the center position of the resistance plate, the first end of the first resistance lead is inserted into the bottommost small hole on one side of the measurement tube and sealed; the second end of the first resistance lead is connected with the measurement control module; except the bottommost small hole, each small hole on the two sides of the measurement tube is provided with a resistance, the first end of each resistance is arranged on the side wall of the measurement tube through the small hole, and the first end of the resistance realizes the sealing of the small hole; the second end of each resistance is connected in parallel to one end of the second resistance lead, and the other end of the second resistance lead is connected to the measurement control module.

2. The electronic mercury sphygmomanometer according to claim 1, wherein The measurement tube is a long glass straight tube; the top of the measurement tube is a sealed end, and the bottom is provided with a right-angle measurement tube lower part inlet.

3. The electronic mercury sphygmomanometer according to claim 2, wherein ​ 4. The electronic mercury sphygmomanometer according to claim 3, wherein The measurement control module comprises an operation control board, wires, a gas pump, a four-way pressure guide pipe, a mercury tank, a pressure guide pipe, a bandage, an exhaust head and a battery pack; the operation control board is a double-layered rectangular plate, the upper layer is an operation board and the lower layer is a control board, the operation board is connected with the control board through the wires and information is exchanged therebetween; the control board is connected with the second end of the first resistance wire and the other end of the second resistance wire; the outlet of the gas pump is connected with the first end of the four-way pressure guide pipe, the micro motor of the gas pump is connected with the control board through the wires, the second end of the four-way pressure guide pipe is connected with the inlet of the mercury tank, the outlet of the mercury tank is connected with the first end of the pressure guide pipe, the second end of the pressure guide pipe is connected with the lower inlet of the measuring tube; the third end of the four-way pressure guide pipe is connected with the bandage and the fourth end is connected with the exhaust head; the battery pack is connected with the control board through the wires and supplies power for the control board.

5. The electronic mercury sphygmomanometer according to claim 4, wherein The mercury tank is provided with a three-layer structure, wherein the upper layer is a gas collection chamber, the middle layer is a latex film and the lower layer is a mercury tank; the mercury tank is provided with mercury liquid as a measuring medium; the gas collection chamber and the mercury tank are isolated by the latex film.

6. The electronic mercury sphygmomanometer according to claim 5, wherein An inlet is arranged on the side wall of the gas collection chamber and connected with the second end of the four-way pressure guide pipe; an outlet is arranged on the side wall of the mercury tank and connected with the first end of the pressure guide pipe.

7. The electronic mercury sphygmomanometer according to claim 4, wherein The exhaust head is formed by butt joint of two cylindrical bodies with different diameters into a hollow channel, a partition is arranged at the joint of the two cylindrical bodies, a plurality of micro-holes are arranged on the partition as exhaust holes.

8. The electronic mercury sphygmomanometer according to claim 1, wherein A charging port is arranged on the side wall of the lower shell.

9. The electronic mercury sphygmomanometer according to claim 1, wherein Two shaft holes are arranged on the upper end of the lower shell, the shaft holes are matched with the cylindrical shaft on the folding shell.

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