Intelligent pressure control device and control method

Abstract

The invention provides an intelligent pressure control device and a control method, and relates to the technical field of medical instruments, the intelligent pressure control device acts on a target area on the surface of a human body, and the device comprises an air bag arranged corresponding to the target area; the air pump is connected with the air bag and is used for pressurizing the air bag; the pressure release valve is connected with the air bag and is used for releasing the pressure of the air bag; the pressure sensing part is used for collecting real-time pressure of a preset position in the target area; and the controller is used for dynamically controlling the air pump and the pressure release valve according to pressure data fed back by the pressure sensing part and carrying out pressure increasing and / or pressure release on the air bag, so that the problems that an existing pressure device for treatment cannot be maintained at a target value in real time and the use effect is poor are solved.

Description

Technical Field

[0001] The present invention relates to the technical field of medical devices, and in particular to an intelligent pressure control device and a control method. Background Art

[0002] Varicose veins of the lower limbs are a common disease, especially in people who engage in long-term physical labor or standing work. The main manifestations are dilation, elongation, and tortuosity of the great saphenous veins in the lower limbs, causing symptoms such as soreness, fatigue, and heaviness in the affected limbs. In severe cases, complications such as leg ulcers or superficial phlebitis are often accompanied.

[0003] At present, the treatment of varicose veins of the lower extremities mainly consists of two methods: pressure therapy and surgical treatment, which complement each other. The theoretical basis of pressure therapy is to offset the increased venous hypertension through pressurization, enhance the muscle pump function, improve the microcirculation hemodynamics of the skin and subcutaneous tissue, and promote venous return. Pressure therapy can not only relieve symptoms, delay the progression of the disease and improve the quality of life of patients, but also can be used as an auxiliary measure for surgical treatment to relieve postoperative discomfort, promote postoperative recovery, consolidate the effect of surgery, and reduce postoperative recurrence. Therefore, pressure therapy is also considered to be the cornerstone of the treatment of varicose veins of the lower extremities.

[0004] There are three main types of pressure therapy: medical elastic stockings, medical elastic bandages, and intermittent pneumatic compression devices. However, these pressure therapies all have different defects. In the clinical care process, it was found that 90% of pressure therapies failed to reach the target pressure, and 80% of patients experienced a gradual loss of pressure over time. Within 72 hours, 50% of patients experienced pressure loss due to reduced swelling. Due to pressure loss and failure to reach the target pressure, the effect of pressure therapy is greatly reduced. Therefore, how to use the pressure device to achieve the pressure of pressure therapy to maintain the target value in real time is the key. Summary of the invention

[0005] In order to overcome the above technical defects, the purpose of the present invention is to provide an intelligent pressure control device and a control method to solve the problem that the existing pressure devices used for treatment cannot be maintained at the target value in real time and the use effect is poor.

[0006] The present invention discloses an intelligent pressure control device, which acts on a target area on the surface of a human body. The device comprises:

[0007] Airbags, arranged in corresponding target areas;

[0008] An air pump connected to the airbag to pressurize the airbag;

[0009] A pressure relief valve connected to the airbag to relieve pressure on the airbag;

[0010] A pressure sensing unit, which collects pressure data of a preset position in a target area in real time;

[0011] The controller dynamically controls the air pump and the pressure relief valve according to the pressure data fed back by the pressure sensing unit to pressurize and / or relieve the pressure of the airbag.

[0012] Preferably, the airbag and the pressure sensing portion are limited by an elastic member to fit closely to the target area.

[0013] Preferably, the controller controls the airbag to form a gradient pressure in the target area.

[0014] Preferably, the pressure relief valve and the air pump are integrally connected to the end of the airbag on the side with the minimum pressure.

[0015] Preferably, the airbag comprises an extension portion and a wing portion connected to one end of the extension portion;

[0016] The pressure relief valve and the air pump are located at one end of the extension;

[0017] The inner diameter of the extension portion gradually increases in a direction away from the pressure relief valve;

[0018] The wing portion is perpendicular to the extension portion so as to circumferentially wrap a certain position in the target area.

[0019] Preferably, the airbag includes a plurality of sub-airbags having different sizes;

[0020] The sub-airbags are connected to each other via regulating valves.

[0021] Preferably, the sum of the areas of the sub-airbags arranged in a direction away from the pressure relief valve increases gradually.

[0022] Preferably, the pressure relief valve is a pneumatic membrane valve;

[0023] Including valve body, push rod and membrane chamber;

[0024] The valve body has a chamber, the chamber is provided with an exhaust hole, and the chamber is connected to the air pump and the air bag;

[0025] The membrane chamber is provided with a diaphragm, and the diaphragm is connected to the tail end of the push rod through a spring assembly;

[0026] The push rod head end is controlled by a diaphragm to close / open the exhaust hole under the action of the spring assembly.

[0027] The present invention further provides a control method of an intelligent pressure control device, which is used to control any of the above-mentioned intelligent pressure control devices, comprising:

[0028] The controller receives the instruction to determine the target pressure threshold range and controls the air pump to work;

[0029] The pressure sensing unit is used to monitor the pressure data at a preset position of the target area in real time. The controller autonomously and dynamically adjusts the operation of the air pump and the pressure relief valve according to the pressure data and the target pressure threshold range, so that the target area remains within the target pressure threshold range.

[0030] The dynamic adjustment of the air pump and the pressure relief valve operation includes:

[0031] When the pressure data is lower than the target pressure threshold range, controlling the air pump to pressurize the airbag;

[0032] and / or, when the pressure data is higher than a target pressure threshold range, controlling the pressure relief valve to relieve pressure on the airbag;

[0033] And / or, synchronously controlling the air pump and the pressure relief valve to perform cyclic fluctuations of pressure increase and pressure relief.

[0034] Compared with the prior art, the above technical solution has the following beneficial effects:

[0035] 1. The intelligent pressure control device and control method provided by the present invention, after the patient wears elastic stockings or elastic bandages on the target area, the pressure of the target area is monitored in real time through the pressure sensing unit, and the pressure data of different positions under the target area are monitored. According to the pressure data, the air pump and the pressure relief valve are intelligently controlled to increase or relieve the pressure of the airbags distributed in the target area autonomously, so that the pressure of the target area is maintained within the target pressure threshold range during the treatment process, thereby improving the accuracy and use effect of the device;

[0036] 2. The intelligent pressure control device can be configured to have airbags with different shapes arranged corresponding to the target area, so that the controller controls the airbags to form a gradient pressure in the target area, so that the target area has an optimal pressure distribution with a gradient change. The airbags have a structure with an increasing area from the upper thigh to the ankle, which maximizes the pressure in the ankle area, promotes blood reflux, and improves the use effect of the device. BRIEF DESCRIPTION OF THE DRAWINGS

[0037] Figure 1 It is a structural schematic diagram of a first embodiment of an intelligent pressure control device and a control method according to the present invention;

[0038] Figure 2 It is a structural schematic diagram of an airbag in Embodiment 1 of an intelligent pressure control device and control method of the present invention;

[0039] Figure 3 It is a structural schematic diagram of a pressure relief valve in Embodiment 1 of an intelligent pressure control device and a control method according to the present invention;

[0040] Figure 4 This is a structural schematic diagram of a second embodiment of an intelligent pressure control device and control method according to the present invention;

[0041] Figure 5 This is a flow chart of Embodiment 3 of an intelligent pressure control device and control method described in the present invention.

[0042] Reference numerals:

[0043] 0-target area with elastic member; 1-airbag; 11-extension part; 12-wing part; 13-sub-airbag; 14-regulating valve; 2-air pump; 3-pressure relief valve; 31-valve body; 32-chamber; 33-exhaust hole; 34-push rod; 35-diaphragm chamber; 36-diaphragm; 37-spring assembly; 4-pressure sensing part; 5-controller. DETAILED DESCRIPTION

[0044] The advantages of the present invention are further described below in conjunction with the accompanying drawings and specific embodiments.

[0045] Exemplary embodiments will be described in detail herein, examples of which are shown in the accompanying drawings. When the following description refers to the drawings, the same numbers in different drawings represent the same or similar elements unless otherwise indicated. The embodiments described in the following exemplary embodiments do not represent all embodiments consistent with the present disclosure. Instead, they are merely examples of devices and methods consistent with some aspects of the present disclosure as detailed in the appended claims.

[0046] The terms used in this disclosure are for the purpose of describing specific embodiments only and are not intended to limit the disclosure. The singular forms of "a", "said" and "the" used in this disclosure and the appended claims are also intended to include plural forms unless the context clearly indicates otherwise. It should also be understood that the term "and / or" used herein refers to and includes any or all possible combinations of one or more associated listed items.

[0047] It should be understood that although the terms first, second, third, etc. may be used in the present disclosure to describe various information, such information should not be limited to these terms. These terms are only used to distinguish the same type of information from each other. For example, without departing from the scope of the present disclosure, the first information may also be referred to as the second information, and similarly, the second information may also be referred to as the first information. Depending on the context, the word "if" as used herein may be interpreted as "at the time of" or "when" or "in response to determining".

[0048] In the description of the present invention, it is necessary to understand that the terms "longitudinal", "lateral", "up", "down", "front", "back", "left", "right", "vertical", "horizontal", "top", "bottom", "inside", "outside", etc., indicating the orientation or position relationship, are based on the orientation or position relationship shown in the accompanying drawings, and are only for the convenience of describing the present invention and simplifying the description, rather than indicating or implying that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation, and therefore cannot be understood as a limitation on the present invention.

[0049] In the description of the present invention, unless otherwise specified and limited, it should be noted that the terms "installed", "connected" and "connected" should be understood in a broad sense. For example, it can be a mechanical connection or an electrical connection, or it can be the internal connection between two components. It can be a direct connection or an indirect connection through an intermediate medium. For ordinary technicians in this field, the specific meanings of the above terms can be understood according to the specific circumstances.

[0050] In the following description, the suffixes such as "module", "component" or "unit" used to represent elements are only used to facilitate the description of the present invention, and have no specific meanings. Therefore, "module" and "component" can be used interchangeably.

[0051] Embodiment 1: This embodiment provides an intelligent pressure control device. Figure 1 , acting on the target area 0 on the surface of the human body, and being used for the treatment of varicose veins, the target area 0 is subjected to real-time pressure monitoring and adjustment. It should be noted that the target area 0 is mainly located in the lower limbs (calf) of the human body, and the pressure of the preset positions therein is monitored and adjusted. The preset positions include but are not limited to: the ankle area, the turning point of the calf Achilles tendon, and the maximum circumference of the calf, and the pressure threshold set for each preset position is different. Specifically, according to the pressure borne by the superficial vein wall of the human body, the device should establish the highest support pressure at the ankle area, and the pressure gradually decreases along the leg upward.

[0052] Specifically, it includes: airbag 1, arranged corresponding to target area 0; specifically, corresponding to the maximum circumference of the calf along the ankle upward;

[0053] An air pump 2, connected to the airbag 1, to pressurize the airbag 1;

[0054] A pressure relief valve 3, connected to the airbag 1, to relieve pressure on the airbag 1;

[0055] The pressure sensing unit 4 collects the real-time pressure of the preset position in the target area 0. Optionally, the target area 0 needs to monitor and control the pressure of multiple preset positions, so a sensor group formed by multiple sensors (each sensor is located at a preset position) can be set, or a sensor belt can be provided, which can correspond to the airbag 1 along the ankle upward to the maximum circumference of the calf;

[0056] The controller 5 is connected to and controls the pressure sensing unit 4, the air pump 2, and the pressure relief valve 3. The controller 5 realizes intelligent control of each component by sending signals. The controller 5 dynamically controls the air pump 2 and the pressure relief valve 3 according to the pressure data fed back by the pressure sensing unit 4 to pressurize and / or relieve the pressure of the airbag 1.

[0057] In this embodiment, an air bag 1 (connected with an air pump 2 and a pressure relief valve 3 that cooperate with each other) and a pressure sensing unit 4 acting on the target area 0 are provided to realize real-time monitoring and control of the pressure on the human body surface from the ankle upward to the maximum circumference of the calf, and the controller 5 autonomously responds to the pressure data to increase the pressure and / or relieve the pressure, so that the device can be used for dynamic adjustment so that the pressure on the human body surface is always kept within the target range during pressure treatment, thereby reducing the problem of inaccurate pressure control and poor treatment effect caused by pressure loss.

[0058] In this embodiment, specifically, in order to achieve pressure control and monitoring of the target area 0, the airbag 1 and the pressure sensing part 4 are restricted by elastic parts to fit closely to the target area 0. Specifically, the elastic parts may include but are not limited to elastic stockings and elastic bandages. The patient wears elastic stockings or uses elastic bandages, and the pressure sensing part 4 and the airbag 1 are restricted between the human body surface and the elastic stockings / elastic bandages. Optionally, the pressure relief valve 3 and the air pump 2 are both connected to the end of one side of the airbag 1. The pressure relief valve 3, the air pump 2, and the controller 5 do not need to be restricted in the elastic stockings / elastic bandages, and can be set at the end (limiting the layout size), or arranged at a certain position away from the human body, connected by pipes, etc., and can be adjusted according to the actual application scenario.

[0059] In addition, the elastic member can be integrated with the device provided in this embodiment, or can be separately provided, and can be manually assembled when used. The purpose of the elastic member such as elastic stockings / elastic bandages is to accurately determine the pressure of the airbag 1 on the target area 0 (i.e., the human body surface), and it is widely used and has low cost. It can also be replaced by other auxiliary members that can wrap the calf for convenient pressure measurement, such as membranes.

[0060] In this embodiment, the controller 5 controls the airbag 1 to form a gradient pressure in the target area 0, which decreases from the ankle to the thigh. The optimal pressure distribution is: 18, 14, 8, 10, and 8 mm Hg at the ankle, calf, knee, lower thigh, and upper thigh, respectively. Therefore, the upper parts are set as the preset positions of the target area 0, respectively, to effectively relieve or improve the pressure on the lower limb veins and venous valves, so that the lower limb venous blood can flow back from the artificial high-pressure area to the low-pressure area. Further, in order to achieve the formation of gradient pressure, it can be achieved by different shapes of the airbag 1 at the preset position (see Figure 4 ).

[0061] See also Figure 2 , the airbag 1 can be arranged as follows: the airbag 1 includes an extension portion 11 and a wing portion 12 connected to one end of the extension portion 11; the pressure relief valve 3 and the air pump 2 are located at one end of the extension portion 11; the inner diameter of the extension portion 11 gradually increases in the direction away from the pressure relief valve 3; the wing portion 12 is perpendicular to the extension portion 11, so as to circumferentially wrap a certain position in the target area 0, wherein the wing portion 12 is used to wrap the ankle, and the inner diameter of the airbag 1 gradually decreases from the ankle upward, the pressure relief valve 3 and the air pump 2 are arranged at the top, the wing portion 12 extends left and right, and the extension portion 11 with a changing inner diameter extends up and down, so that the area of ​​the airbag 1 distributed from the upper end of the thigh to the ankle becomes larger and larger, thereby forming a gradually increasing pressure from the upper end of the thigh to the ankle during the pressurization process, that is, forming the optimal pressure distribution with gradient change that satisfies the above-mentioned optimal pressure distribution, and the airbag 1 is designed as a structural design with an increasing area from the upper thigh to the ankle, and the pressure at the ankle is the largest, which promotes blood reflux.

[0062] Preferably, the pressure relief valve 3 and the air pump 2 are integrated and connected to the end of the airbag 1 with the minimum pressure side, that is, the end of the airbag 1 with the smallest area, so that when the air pump 2 / pressure relief valve 3 pressurizes / depressurizes the airbag 1, it transfers control from the minimum pressure end to the maximum pressure end, rather than from the maximum pressure end, to improve control accuracy and control safety. As an example, the pressure sensing part 4 and the airbag 1 can be arranged in parallel with each other in a strip shape and fit the target area 0, and the air pump 2, the pressure relief valve 3 and the controller 5 can be arranged between the pressure sensing part 4 and the airbag 1 to be exposed outside the elastic member.

[0063] In this embodiment, the controller 5 can have a built-in circuit structure, and can judge the pressure value collected in real time by the pressure sensing part 4. When the real-time pressure of the target area 0 is lower than the preset target pressure threshold range / level, a command is issued to the air pump 2, and the air pump 2 starts to inflate / pressurize the airbag 1. When the real-time pressure of the leg reaches the target pressure threshold range, the controller 5 issues a command to the pressure relief valve 3, and the pressure relief valve 3 cooperates with the air pump 2 to perform a cyclic fluctuation of inflation and pressure relief until the real-time pressure of each part of the leg reaches the preset target pressure threshold range and is balanced and stable. The cooperation between the air pump 2 and the pressure relief valve 3 allows the entire airbag 1 wrapped around the leg to stably and evenly reach the overall preset pressure value.

[0064] Optionally, the controller 5 can preset multiple pressure levels, and each pressure level corresponds to a preset pressure threshold range, such as setting the following three levels: 20-30mmHg pressure, 30-40mmHg pressure, and 40-50mmHg pressure. Corresponding to different treatment needs, corresponding level instructions are given to the controller 5, so that the controller 5 can be autonomously controlled and adjusted.

[0065] See also Figure 3 , the above-mentioned air pump 2 and pressure relief valve 3 can be regarded as a combined pump-valve boosting and pressure relief device, which is used for boosting and / or pressure relief to keep the pressure within the target pressure threshold range. The air pump 2 is used for boosting, and the existing general air pump 2 can be used, or it can be replaced by other boosting equipment. The pressure relief valve 3 adopts a pneumatic diaphragm valve, including: a valve body 31, a push rod 34, and a membrane chamber 35; the valve body 31 has a chamber 32, and the chamber 32 is provided with an exhaust hole 33, and the chamber 32 is also connected to the air pump 2 and the airbag 1; the membrane chamber 35 is equipped with a diaphragm 36, and the diaphragm 36 is connected to the tail end of the push rod 34 through a spring assembly 37; the head end of the push rod 34 is controlled by the diaphragm 36 to close / open the exhaust hole 33 under the action of the spring assembly 37.

[0066] Specifically, in the normal state of the pneumatic diaphragm valve, the diaphragm 36 is compressed to make the push rod 34 move forward against the spring force, and the head end of the push rod 34 is set to a cylindrical structure to block the exhaust hole 33, so that the entire device is in a closed state. When the controller 5 receives the data of the pressure sensor 4, after judging by the real-time collected pressure data, it sends a start signal to make the air pump 2 work, and inflate the airbag 1 through the chamber 32. At this time, the pressure relief valve 3 is in a closed state; when the pressure exceeds the target pressure threshold range, an opening signal is sent to the pressure relief valve 3, and the spring force causes the push rod 34 to retreat, and the exhaust hole 33 is opened, so that the chamber 32 is connected to the outside world, and the pressure relief valve 3 works. The airbag 1 can eventually reach a balanced and stable filling state through the cyclic opening and coordination of the air pump 2 and the pressure relief valve 3.

[0067] Based on the above, the intelligent pressure control device provided in this embodiment monitors the real-time pressure through real-time pressure monitoring. The patient wears elastic stockings or uses elastic bandages to monitor the real-time pressure values ​​of different parts under the target area 0. Once the pressure is lower than the preset target pressure threshold range, an instruction is issued to automatically increase the pressure through intelligent control to increase the pressure at the corresponding preset position and supplement the pressure, so that the pressure therapy treatment is always maintained within the target pressure threshold range, thereby improving the accuracy and use effect of the device.

[0068] Embodiment 2: This embodiment provides an intelligent pressure control device, see Figure 4 , the configuration different from the above-mentioned embodiment 1 lies in the configuration of the airbag 1. Specifically, the airbag 1 includes a plurality of sub-airbags 13 with different sizes; each of the sub-airbags 13 is interconnected by a regulating valve 14. It can be understood that the sub-airbags 13 of different sizes form different shapes of coverage in the target area 0, so that the distribution area of ​​the airbag 1 is different in the part from the ankle to the thigh. Preferably, the area of ​​each sub-airbag 13 arranged in the direction away from the pressure relief valve 3 gradually increases. As an example, the sub-airbags 13 can be set as vertical long columns parallel to each other, wherein each sub-airbag 13 extends upward from the ankle at a different height, so that each sub-airbag 13 has a partial area corresponding to the ankle position, but only some sub-airbags 13 have an area corresponding to the upper end of the thigh, so that the airbag 1 has different coverage areas and shapes from the ankle to the upper end of the thigh; or, each sub-airbag 13 is used to circumferentially surround different positions of the target area 0, that is, each sub-airbag 13 corresponds to surrounding the ankle, calf, knee, lower end of the thigh, and upper end of the thigh, but the inner diameter of the sub-airbag 13 is different at different positions, that is, the inner diameter gradually decreases from the ankle to the upper end of the thigh, so that the pressure applied from the ankle to the upper end of the thigh gradually decreases.

[0069] Furthermore, the pressure increase / depressurization state of each sub-airbag 13 can be controlled by the regulating valve 14 to control the inflation state of each specific sub-airbag 13, so as to realize the formation of gradient pressure of the airbag 1 as a whole, which can be controlled manually or connected to the controller 5 and controlled by signals. The above-mentioned multiple sub-airbags 13 with different sizes can make the airbag 1 form a coverage of different areas and shapes of the target area 0 without correspondingly wrapping the entire target area 0, thereby reducing the coverage of the human body surface and reducing the movement restraint of the lower limbs of the human body.

[0070] Embodiment 3: This embodiment also provides a control method of an intelligent pressure control device, which is used to control the intelligent pressure control device described in any one of the above embodiments 1 or 2. Figure 1-Figure 5 ,include:

[0071] S1: The controller 5 receives an instruction to determine a target pressure threshold range and controls the air pump 2 to work;

[0072] Specifically, instructions including the above-mentioned pressure levels can be set, that is, corresponding instructions are sent to the controller 5 according to the patient's condition, and each pressure level corresponds to a target pressure threshold range. As an illustration, a gradient pressure needs to be formed in the target area 0. Optionally, the target pressure threshold range corresponding to the pressure level can be a threshold range including various preset positions, or, optionally, the target pressure threshold range corresponding to the pressure level can also be a threshold range at a certain position, while other positions are controlled by the size and shape of the airbag 1 to change in proportion accordingly.

[0073] Prior to this, the patient wears elastic stockings or elastic bandages, and integrates the device into the elastic stockings or elastic bandages so that the airbag 1 and the pressure sensing part 4 correspond to the preset positions under the target area 0. Specifically, the controller 5 can trigger the opening / closing signal of the pressure relief valve 3 and the start / pause signal for the air pump 2 to control the operation of the air pump 2 and the pressure relief valve 3 separately or synchronously.

[0074] S2: The pressure sensing unit 4 is used to monitor the pressure data at the preset position of the target area 0 in real time, and the controller 5 autonomously and dynamically adjusts the operation of the air pump 2 and the pressure relief valve 3 according to the pressure data and the target pressure threshold range, so that the target area 0 remains within the target pressure threshold range.

[0075] Specifically, the real-time monitoring can reduce the situation where pressure loss causes inaccurate pressure control of the device. The dynamic adjustment of the air pump 2 and the pressure relief valve 3 includes but is not limited to the following:

[0076] When the pressure data is lower than the target pressure threshold range, the air pump 2 is controlled to pressurize the airbag 1;

[0077] and / or, when the pressure data is higher than the target pressure threshold range, controlling the pressure relief valve 3 to relieve the pressure of the airbag 1;

[0078] And / or, synchronously controlling the air pump 2 and the pressure relief valve 3 to perform cyclic fluctuations of pressure increase and pressure relief.

[0079] As mentioned above, the pressure sensing unit 4 can monitor the pressure corresponding to the preset position of the target in real time, including but not limited to the ankle, calf, knee, lower thigh, upper thigh, etc. When the pressure change corresponding to any preset position in the pressure data exceeds expectations, it will be adjusted autonomously and intelligently so that the pressure therapy treatment always remains within the target pressure threshold range, thereby improving the accuracy of pressure control and improving the use effect.

[0080] It should be noted that the embodiments of the present invention have better practicability and do not impose any form of limitation on the present invention. Any technician familiar with the field may use the technical content disclosed above to change or modify it into an equivalent effective embodiment. However, any modification or equivalent changes and modifications made to the above embodiments based on the technical essence of the present invention without departing from the content of the technical solution of the present invention are still within the scope of the technical solution of the present invention.

Claims

1. An intelligent pressure control device, acting on a target area on the human body surface, characterized in that: The device comprises: Airbags, arranged in corresponding target areas; An air pump connected to the airbag to pressurize the airbag; A pressure relief valve connected to the airbag to relieve pressure on the airbag; A pressure sensing unit, which collects pressure data of a preset position in a target area in real time; The controller dynamically controls the air pump and the pressure relief valve according to the pressure data fed back by the pressure sensing unit to pressurize and / or relieve the pressure of the airbag.

2. The intelligent pressure control device according to claim 1, characterized in that: The airbag and the pressure sensing portion are limited by an elastic member so as to be closely attached to the target area.

3. The intelligent pressure control device according to claim 1, characterized in that: The controller controls the airbag to form a gradient pressure in the target area.

4. The intelligent pressure control device according to claim 3, characterized in that: The pressure relief valve and the air pump are integrally connected to the end portion of the airbag on the side with the minimum pressure.

5. The intelligent pressure control device according to claim 3 or 4, characterized in that: The airbag comprises an extension portion and a wing portion connected to one end of the extension portion; The pressure relief valve and the air pump are located at one end of the extension; The inner diameter of the extension portion gradually increases in a direction away from the pressure relief valve; The wing portion is perpendicular to the extension portion so as to circumferentially wrap a certain position in the target area.

6. The intelligent pressure control device according to claim 3 or 4, characterized in that: The airbag includes a plurality of sub-airbags with different sizes; The sub-airbags are connected to each other via regulating valves.

7. The intelligent pressure control device according to claim 6, characterized in that: The sum of the areas of the sub-airbags arranged in a direction away from the pressure relief valve gradually increases.

8. The intelligent pressure control device according to claim 1, characterized in that: The pressure relief valve adopts a pneumatic diaphragm valve; Including valve body, push rod and membrane chamber; The valve body has a chamber, the chamber is provided with an exhaust hole, and the chamber is connected to the air pump and the air bag; A diaphragm is built into the diaphragm chamber, and the diaphragm is connected to the tail end of the push rod through a spring assembly; The diaphragm controls the head end of the push rod to close or open the exhaust hole under the action of the spring assembly.

9. A control method for an intelligent pressure control device, used to control the intelligent pressure control device according to any one of claims 1 to 8, characterized in that: The method comprises: The controller receives the instruction to determine the target pressure threshold range and controls the air pump to work; The pressure sensing unit is used to monitor the pressure data at a preset position of the target area in real time. The controller autonomously and dynamically adjusts the operation of the air pump and the pressure relief valve according to the pressure data and the target pressure threshold range, so that the target area remains within the target pressure threshold range.

10. The control method according to claim 9, characterized in that: The dynamic adjustment of the air pump and the pressure relief valve operation includes: When the pressure data is lower than the target pressure threshold range, controlling the air pump to pressurize the airbag; and / or, when the pressure data is higher than a target pressure threshold range, controlling the pressure relief valve to relieve pressure on the airbag; And / or, synchronously controlling the air pump and the pressure relief valve to perform cyclic fluctuations of pressure increase and pressure relief.

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