Noninvasive blood pressure measuring system

Abstract

The utility model discloses a non-invasive blood pressure measuring system which comprises a machine box, an upper cover and an air heating assembly used for generating hot air, the upper cover is movably arranged on the machine box, a heating cavity is formed between the machine box and the upper cover, a heating partition plate is arranged between the machine box and the upper cover, a mounting cavity is formed between the heating partition plate and the machine box, and the air heating assembly is arranged in the mounting cavity. A detection cavity is formed between the heating partition plate and the upper cover; the air heating assembly is arranged in the mounting cavity, and a plurality of circulating air openings are evenly formed in the heating partition plate. Hot air is generated through the air heating assembly, enters the detection cavity through the circulating air opening of the heating partition plate, flows and heats the detection cavity, and then returns to the air heating assembly through the circulating air opening, so that circulating air heating is achieved; circulating air ports are formed in the left and right sides of the heating partition plate, so that the problem that heating power is concentrated locally is avoided.

Description

Technical Field

[0001] The utility model relates to the technical field of medical experimental equipment, and particularly relates to a non-invasive blood pressure measurement system. Background Art

[0002] Rats, like other animals, have an internal regulatory mechanism called "temperature regulation". If the environmental temperature is higher than the normal temperature (28 - 30 °C), in order to reduce the body temperature, the "temperature regulation" starts to work, increasing blood flow to strengthen heat dissipation, so that the tail obtains more blood flow and it is easier to obtain blood pressure data. This is the principle of indirect blood pressure measurement.

[0003] Some existing blood pressure measurement systems use heating pads for heating, which easily leads to too high local temperature and poor heating effect on the experimental animals; some use air-heating systems, but the air outlet is offset to one side, resulting in uneven heating. Content of the Utility Model

[0004] The purpose of the utility model is to overcome the deficiencies of the prior art and provide a non-invasive blood pressure measurement system. Hot air is generated by a hot air component, and the hot air enters the detection cavity through the circulation air vents on the heating partition. The hot air flows and heats the detection cavity, and then returns to the hot air component through the circulation air vents, realizing circulating air heating; the circulation air vents are arranged on the left and right sides of the heating partition, avoiding the problem of heat concentration in a local area.

[0005] The purpose of the utility model is realized by the following technical solutions:

[0006] A non-invasive blood pressure measurement system includes a chassis, an upper cover, and a hot air component for generating hot air. The upper cover is movably arranged on the chassis. A heating cavity is formed between the chassis and the upper cover. A heating partition is arranged between the chassis and the upper cover. An installation cavity is formed between the heating partition and the chassis, and a detection cavity is formed between the heating partition and the upper cover;

[0007] The hot air component is arranged in the installation cavity. A plurality of circulation air vents are evenly arranged on the heating partition. The plurality of circulation air vents are distributed at the air inlet and air outlet of the hot air component. The air inlet of the hot air component, the circulation air vent near the air inlet of the hot air component, the detection cavity, the air outlet of the hot air component, and the circulation air vent near the air outlet of the hot air component form a hot air circulation channel.

[0008] Further, one end of the upper cover is hinged to the chassis through a damping hinge.

[0009] Further, a limiter for limiting the maximum opening angle of the upper cover is arranged on the damping hinge.

[0010] Further, the limiter is an L-shaped plate.

[0011] Further, an observation window is provided on the upper cover, and an observation plate is provided on the observation window.

[0012] Further, the chassis is arranged on the base, and a control cavity for installing electronic components is formed between the chassis and the base.

[0013] Further, the electronic components include a solenoid valve, a deflation proportional valve, an air pump assembly, a control assembly, and a power supply assembly.

[0014] Further, a temperature sensor is provided on the heating partition plate.

[0015] Further, a display screen and an indicator light are provided on the chassis.

[0016] The beneficial effects of the present utility model are as follows:

[0017] 1) The present utility model generates hot air through the hot air component. The hot air enters the detection cavity through the circulation air outlets on the heating partition plate, the hot air flows and heats the detection cavity, and then returns to the hot air component through the circulation air outlets, realizing circulating air heating; the circulation air outlets are opened on the left and right sides of the heating partition plate, avoiding the problem of heat concentration in a local area.

[0018] 2) After the upper cover is opened, it can stay at any position under the action of the damping rotating shaft and will not suddenly close by itself; the limiter limits the maximum opening angle of the upper cover, avoiding the problem that the opening degree of the upper cover is too large and the operator in the front cannot reach the upper cover to perform the closing operation; the dark semi-transparent observation window not only allows light transmission for observation but also enables the experimental animals to be in a relatively dim environment and remain quiet.

[0019] 3) The control assembly controls the air pump assembly to inflate or stop through the built-in air pressure sensor in a closed-loop manner; controls the opening and closing of each passage through independent solenoid valves respectively; and controls the deflation speed steplessly and linearly through the deflation proportional valve. Description of the Drawings

[0020] Figure 1 is a perspective view of the non-invasive blood pressure measurement system in the embodiment of the present utility model;

[0021] Figure 2 is a top view of the non-invasive blood pressure measurement system;

[0022] Figure 3 is Figure 2 a cross-sectional view taken along the line A-A in

[0023] Figure 4 an internal structure schematic diagram of the non-invasive blood pressure measurement system;

[0024] Figure 5 is a bottom view of the non-invasive blood pressure measurement system with the base hidden;

[0025] Figure 6 Stereogram of the non-invasive blood pressure measurement system when the upper cover is opened;

[0026] In the figure, 1 is the chassis, 2 is the upper cover, 3 is the hot air component, 4 is the measurement accessory, 5 is the heating partition, 6 is the installation cavity, 7 is the detection cavity, 8 is the circulation air vent, 9 is the damping hinge, 10 is the limiter, 11 is the observation window, 12 is the solenoid valve, 13 is the deflation proportional valve, 14 is the air pump assembly, 15 is the control assembly, 16 is the power supply assembly, 17 is the temperature sensor, 18 is the display screen, 19 is the indicator light, 20 is the electrical socket, 21 is the air path joint, 22 is the base, and 23 is the control cavity. Specific implementation mode

[0027] Next, the technical solutions of the present invention will be clearly and completely described in conjunction with the embodiments. Obviously, the described embodiments are only a part of the embodiments of the present invention, rather than all the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by those skilled in the art without creative efforts belong to the scope of protection of the present invention.

[0028] Refer to Figures 1-6 , the present invention provides a technical solution:

[0029] Embodiment:

[0030] As Figures 1-6 shown, a non-invasive blood pressure measurement system includes a chassis 1, an upper cover 2, and a hot air component 3 for generating hot air. The upper cover 2 is movably arranged on the chassis 1. A heating cavity is formed between the chassis 1 and the upper cover 2. The heating cavity is used to install the measurement accessory 4. A heating partition 5 is provided between the chassis 1 and the upper cover 2. An installation cavity 6 is formed between the heating partition 5 and the chassis 1. A detection cavity 7 is formed between the heating partition 5 and the upper cover 2;

[0031] The hot air component 3 is arranged in the installation cavity 6. A plurality of circulation air vents 8 are evenly arranged on the heating partition 5. The plurality of circulation air vents 8 are distributed at the air inlet and outlet of the hot air component 3. The air inlet of the hot air component 3, the circulation air vent 8 near the air inlet of the hot air component 3, the detection cavity 7, the air outlet of the hot air component 3, and the circulation air vent 8 near the air outlet of the hot air component 3 form a hot air circulation channel.

[0032] One end of the upper cover 2 is hinged to the chassis 1 through a damping hinge 9.

[0033] A limiter 10 for limiting the maximum opening angle of the upper cover 2 is provided on the damping hinge 9; the limiter 10 is an L-shaped plate.

[0034] An observation window 11 is provided on the upper cover 2, and an observation plate (made of transparent material) is provided on the observation window 11. The observation plate facilitates the operator to observe during blood pressure measurement.

[0035] The chassis 1 is arranged on the base 22, and a control cavity 23 for installing electronic components is formed between the chassis 1 and the base 22.

[0036] As Figure 5 and Figure 6 shown, the electronic components include a solenoid valve 12, a deflation proportional valve 13, an air pump assembly 14, a control assembly 15, and a power supply assembly 16. The chassis 1 is provided with an electrical socket 20 and a gas path connector 21 through the board. The gas path outlet of the solenoid valve 12 is connected to the gas path interface installed through the board on the chassis 1; the control assembly 15 connects a signal line to the electrical socket 20 installed through the board on the chassis 1; the measurement accessory 4 can be respectively connected to the aforementioned gas path interface 21 and the electrical socket 20. The air pump assembly 14 is internally provided with an air storage bag. The gas paths of the air pump assembly 14 are respectively connected to the solenoid valve 12, the deflation proportional valve 13, and the air pressure sensor built in the control assembly 15. The gas paths are interconnected and share pressure; the control assembly 15 controls the operation of the air pump assembly 14 in a closed loop according to the air pressure sensor.

[0037] As Figure 6 shown, a temperature sensor 17 is provided on the heating partition 5.

[0038] As Figure 6 shown, a display screen 18 and an indicator light 19 are provided on the chassis 1

[0039] Among them, 1. The measurement accessory 4 is a prior art, and its structure and working principle can specifically be but not limited to the patent with the publication number CN107212871A. 2. In this embodiment, three measurement accessories 4 are provided in the detection cavity 7, and correspondingly, three electrical sockets 20, gas path connectors 21, and solenoid valves 12 are provided. The solenoid valve 12 is used to control the gas path connection of the measurement accessory 4 in the use state.

[0040] The hot air component 3 generates hot air. The hot air enters the experimental area (i.e., the detection cavity 7) formed by the upper cover 2, the heating partition 5, and the chassis 1 through the circulation air outlet 8 near the tail of the heating partition 5. The hot air flows and heats the experimental area, and then returns to the hot air component 3 through the circulation air outlet 8 near the head of the mouse, realizing circulating air heating; during the heating process, the control assembly 15 controls the operation of the hot air component 3 in a closed loop according to the real-time temperature.

[0041] After the upper cover 2 is opened, it can stay at any position under the action of the damping hinge and will not suddenly close by itself; the limiter restricts the maximum opening angle of the upper cover 2 to avoid the situation that when the opening degree of the upper cover 2 is too large, the operator in the front cannot reach the upper cover 2 and cannot perform the cover closing operation; the dark semi-transparent observation window allows light to pass through for observation while keeping the experimental animals in a relatively dim environment to keep them quiet.

[0042] Working principle: Place an experimental animal, such as a white rat, into the rat cage of the measuring accessory 4, pass the rat's tail through the blocking device of the measuring accessory 4, and place the rat's tail on the sensor of the measuring accessory 4 and fix it. Then place the measuring accessory 4 on the heating partition 5, connect the blocking gas path of the measuring accessory 4 to the gas path connector 21 outside the chassis 1, connect the sensor connector of the measuring accessory 4 to the electrical socket 20 outside the chassis 1, and finally close the upper cover 2.

[0043] After starting the system, the control component 15 monitors the real-time temperature fed back by the temperature sensor 17 and displays this temperature on the display screen 18; the control component 15 controls the hot air generating component 3 to work and heats the area where the experimental animal is located to the set temperature. As the temperature rises, the blood flow in the rat's tail increases, and the sensor in the measuring accessory 4 can obtain the rat tail pulse signal and waveform.

[0044] When starting the measurement, the control component 15 opens the solenoid valve 12 of the used path and closes the solenoid valve 12 of the unused path; the control component 15 controls the air pump component 14 to work in a closed loop to raise the gas path pressure to the set value; the blocking device in the measuring accessory 4 compresses the rat tail artery under the action of air pressure; the control component 15 controls the air release proportional valve 13 to open and releases air at the set air release speed, and the blocking device in the measuring accessory 4 slowly relaxes the compression on the rat tail artery; during this process, the sensor in the measuring accessory 4 continuously obtains the rat tail pulse signal and calculates the rat tail artery blood pressure based on the data of the air pressure sensor.

[0045] The utility model generates hot air through the hot air generating component. The hot air enters the detection chamber through the circulation air vents of the heating partition, the hot air flows and heats the detection chamber, and then returns to the hot air generating component through the circulation air vents, realizing circulating air heating; the circulation air vents are opened on the left and right sides of the heating partition, avoiding the problem of heat concentration in a local area.

[0046] The above is only the preferred embodiment of the utility model. It should be understood that the utility model is not limited to the form disclosed herein, should not be regarded as excluding other embodiments, but can be used in various other combinations, modifications and environments, and can be changed within the scope of the concept described herein through the above teachings or the technology or knowledge in related fields. And any changes and modifications made by those skilled in the art without departing from the spirit and scope of the utility model should fall within the protection scope of the appended claims of the utility model.

Claims

1. A non-invasive blood pressure measurement system, characterized in that: It includes a chassis, an upper cover, and a hot-air component for generating hot air. The upper cover is movably arranged on the chassis. A heating chamber is formed between the chassis and the upper cover, and the heating chamber is used for installing measurement accessories. A heating partition is provided between the chassis and the upper cover. An installation chamber is formed between the heating partition and the chassis, and a detection chamber is formed between the heating partition and the upper cover. The hot-air component is arranged in the installation chamber. A plurality of circulation air vents are evenly provided on the heating partition, and the plurality of circulation air vents are distributed at the air inlet and the air outlet of the hot-air component. The air inlet of the hot-air component, the circulation air vents near the air inlet of the hot-air component, the detection chamber, the air outlet of the hot-air component, and the circulation air vents near the air outlet of the hot-air component form a hot-air circulation channel.

2. The non-invasive blood pressure measurement system according to claim 1, wherein: One end of the upper cover is hinged to the chassis through a damping hinge.

3. The non-invasive blood pressure measurement system according to claim 2, wherein: A limiter for restricting the maximum opening angle of the upper cover is provided on the damping hinge.

4. The non-invasive blood pressure measurement system according to claim 3, characterized in that: The limiter is an L-shaped plate.

5. The non-invasive blood pressure measurement system according to claim 1, wherein: An observation window is provided on the upper cover, and an observation board is provided on the observation window.

6. The non-invasive blood pressure measurement system according to claim 1, wherein: The chassis is arranged on a base, and a control chamber for installing electronic components is formed between the chassis and the base.

7. The non-invasive blood pressure measurement system according to claim 6, wherein: The electronic components include a solenoid valve, a gas release proportional valve, an air pump assembly, a control assembly, and a power supply assembly.

8. The non-invasive blood pressure measurement system according to claim 7, wherein: A temperature sensor is provided on the heating partition.

9. The non-invasive blood pressure measurement system according to claim 6, wherein: A display screen and an indicator light are provided on the chassis.

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