Intermittent inflating and pressurizing device and pressure measuring method

Abstract

The invention provides an intermittent inflating and pressurizing device and a pressure measuring method. The intermittent inflating and pressurizing device comprises an inflating bag, a pressure measuring module and a controller, wherein the pressure measuring module comprises an actual acting force measuring unit and an inflation pressure measuring unit, and the controller comprises a pressure adjusting module; the actual acting force measuring unit is used for measuring the actual acting force applied to the limbs of the user and storing the baseline actual acting force range of the user; the inflation pressure measuring unit is used for measuring the inflation pressure, applied to the limb surface of the user, of gas in the inflation bag and storing the baseline inflation pressure range of the user; the pressure adjusting module is used for adjusting the inflation pressure in real time based on the function change relation between the predetermined actual acting force and the inflation pressure so that the actual acting force can be kept within the baseline actual acting force range. The inflation pressure can be adjusted in real time according to the actual acting force of the IPC device, and the problem that the output pressure of the IPC device is fixed is solved.

Description

Technical Field

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

[0002] Deep Vein Thrombosis (DVT) is a vascular disease that refers to abnormal coagulation of blood in the deep veins of the lower extremities, forming blood clots, which in turn hinder the normal flow of blood; it usually occurs in the deep veins of the lower extremities, especially the calf or thigh veins. If not treated in time, the thrombus may fall off and cause pulmonary embolism (PE), which seriously endangers the patient's life safety. Therefore, DVT prevention and treatment are crucial.

[0003] Commonly used DVT prevention methods include: basic prevention, physical prevention and anticoagulant drug prevention. Among them, physical prevention of DVT mainly uses external force methods to promote venous blood return and reduce blood stasis, thereby reducing the risk of DVT formation. It is especially suitable for elderly patients who are bedridden for a long time, bedridden patients after surgery, and other patients who cannot take anticoagulant prevention due to high risk of bleeding.

[0004] The most commonly used physical prevention device is the Intermittent Pneumatic Compression (IPC) device, which applies periodic pressure to the lower limbs, helps promote venous return and reduce leg swelling, prevent deep vein thrombosis, control lymphedema, and treat leg venous ulcers. However, the IPC device commonly used in clinical practice will no longer inflate after the force applied to the leg reaches a certain value in the initial stage. The pressure value of each subsequent inflation remains at the initial level and does not change. During use, the leg cuff may become loose or not tightly attached. The fixed pressure value will directly affect the actual force applied by the IPC to the patient's leg. Summary of the invention

[0005] In view of this, an object of the present invention is to provide an intermittent inflation and pressurization device and a pressure measurement method, which can adjust the inflation pressure in real time according to the actual force of the IPC device, thereby improving the problem of fixed output pressure of the IPC device.

[0006] In order to achieve the above object, the technical solution adopted by the present invention is as follows: In the first aspect, the present invention provides an intermittent inflation and pressurization device, comprising: an inflatable bag, a pressure measurement module and a controller; wherein the pressure measurement module comprises: an actual force measurement unit and an inflation pressure measurement unit, and the controller comprises a pressure adjustment module; the actual force measurement unit is used to measure the actual force applied to the user's limbs, and store the user's baseline actual force range; the inflation pressure measurement unit is used to measure the inflation pressure applied by the gas in the inflatable bag to the surface of the user's limbs, and store the user's baseline inflation pressure range; the pressure adjustment module is used to adjust the inflation pressure in real time based on a predetermined functional change relationship between the actual force and the inflation pressure, so that the actual force remains within the baseline actual force range.

[0007] Optionally, the actual force measurement unit includes: a force sensor; during the measurement process, the force sensor is arranged between the inflatable bag and the surface of the limb, and the sensing surface of the force sensor is in direct contact with the surface of the limb; the inflation pressure measurement unit includes: a pressure sensor arranged in the inflatable bag.

[0008] Optionally, the controller further includes: a baseline pressure setting module, used to set a user's baseline actual force range and a corresponding baseline inflation pressure range.

[0009] Optionally, the baseline pressure setting module is specifically used to: after the user correctly wears the intermittent inflation and pressurization device, inflate the inflatable bag for the first time, and stop inflating when the actual force measured reaches a first preset value, obtain the actual force and inflation pressure of the first inflation, and deflate the inflatable bag for the first time after a first preset time, obtain the actual force and inflation pressure of the first deflation; inflate the inflatable bag for the second time, stop inflating when the actual force measured reaches a second preset value, obtain the actual force and inflation pressure of the second inflation, and deflate the inflatable bag for the second time after the first preset time, obtain the actual force and inflation pressure of the second deflation; inflate the inflatable bag for the third time, and stop inflating when the actual force measured reaches a second preset value, obtain the actual force and inflation pressure of the second inflation, and deflate the inflatable bag for the second time after the first preset time, obtain the actual force and inflation pressure of the second deflation; When the third preset value is reached, the inflation is stopped, the actual force and inflation pressure of the third inflation are obtained, and after the first preset time, the inflatable bag is deflated for the third time to obtain the actual force and inflation pressure of the third deflation; the inflatable bag is inflated for the fourth time, and when the actual force reaches the fourth preset value, the inflation is stopped, the actual force and inflation pressure of the fourth inflation are obtained, and after the first preset time, the inflatable bag is deflated for the fourth time to obtain the actual force and inflation pressure of the fourth deflation; data fitting is performed based on the actual forces and inflation pressures obtained from the four inflations and deflations to determine the baseline actual force range and the corresponding baseline inflation pressure range, as well as a relationship model between the baseline actual force and the baseline inflation pressure.

[0010] Optionally, the baseline pressure setting module is also used to: verify the relationship model between the baseline actual force and the baseline inflation pressure, and establish an individualized pressure measurement model after the verification; wherein the individualized pressure measurement model is used to characterize the functional change relationship between the actual force and the inflation pressure; the verification process includes: inflating the inflatable bag to the baseline inflation pressure setting value, and determining whether the current actual force reaches the baseline actual force range, and if so, the verification passes; the baseline inflation pressure setting value is calculated by the individualized pressure measurement model.

[0011] Optionally, the controller further includes: a pressure feedback module, which is used to monitor the change trend of the individualized pressure measurement model at every second preset time interval during the operation of the intermittent inflation and pressurization device, and perform real-time pressure feedback.

[0012] Optionally, the controller further includes: a real-time pressure monitoring module for monitoring whether the actual force reaches the baseline actual force range, and monitoring the time percentage that the actual force reaches the baseline actual force range.

[0013] Optionally, the real-time pressure monitoring module is also used to: based on an individualized pressure measurement model, display the changing relationship and changing trend between the actual force and the inflation pressure in real time.

[0014] Optionally, the intermittent inflation and pressurization device also includes: an integrated leg cuff structure, an inflation pump and a control device; wherein, the inflatable bag and the pressure measurement module are arranged in the integrated leg cuff structure, the controller and the inflation pump are arranged in the control device, and the control device also includes a display; the inflatable bag also includes: an inflation tube, the inflation tube is connected to the inflation pump in the control device, and the inflation tube includes: an air inlet pipe and an air outlet pipe.

[0015] In a second aspect, the present invention provides a pressure measurement method, which is applied to any intermittent inflation and pressurization device provided in the first aspect, comprising: measuring the actual force applied to the user's limbs through an actual force measuring unit; measuring the inflation pressure applied to the surface of the user's limbs by the gas in the inflatable bag through an inflation pressure measuring unit; and adjusting the inflation pressure in real time through a pressure adjustment module based on a predetermined functional change relationship between the actual force and the inflation pressure, so that the actual force remains within the baseline actual force range.

[0016] The present invention brings the following beneficial effects: The intermittent pneumatic pressurization device and pressure measurement method provided by the present invention include: an inflatable bag, a pressure measurement module and a controller; wherein the pressure measurement module includes: an actual force measurement unit and an inflation pressure measurement unit, and the controller includes a pressure adjustment module; the actual force measurement unit is used to measure the actual force applied to the user's limbs and store the user's baseline actual force range; the inflation pressure measurement unit is used to measure the inflation pressure applied by the gas in the inflatable bag to the surface of the user's limbs, and store the user's baseline inflation pressure range; the pressure adjustment module is used to adjust the inflation pressure in real time based on the predetermined functional change relationship between the actual force and the inflation pressure, so that the actual force remains within the baseline actual force range. The intermittent pneumatic pressurization device can monitor the actual force and inflation pressure applied to the user's limbs in real time through the actual force measurement unit and the inflation pressure measurement unit, and can adjust the inflation pressure in real time according to the predetermined functional change relationship between the actual force and the inflation pressure, so that the actual force remains within the baseline actual force range, thereby improving the problem of the fixed output pressure of the IPC device.

[0017] Other features and advantages of the present invention will be described in the following description, and partly become apparent from the description, or understood by practicing the present invention. The purpose and other advantages of the present invention are realized and obtained by the structures particularly pointed out in the description, claims and drawings.

[0018] In order to make the above-mentioned objects, features and advantages of the present invention more obvious and easy to understand, the preferred embodiments are specifically mentioned below and described in detail with reference to the accompanying drawings. BRIEF DESCRIPTION OF THE DRAWINGS

[0019] In order to more clearly illustrate the specific implementation methods of the present invention or the technical solutions in the prior art, the drawings required for use in the specific implementation methods or the description of the prior art will be briefly introduced below. Obviously, the drawings described below are some implementation methods of the present invention. For ordinary technicians in this field, other drawings can be obtained based on these drawings without paying creative work.

[0020] Figure 1 A structural block diagram of an intermittent inflation and pressurization device provided in an embodiment of the present invention; Figure 2 A structural block diagram of another intermittent inflation and pressurization device provided in an embodiment of the present invention; Figure 3 A schematic diagram of an integrated leg cover structure provided by an embodiment of the present invention; Figure 4 A flow chart of a pressure measurement method provided by an embodiment of the present invention; Figure 5 A schematic flow chart of each module of an intermittent inflation and pressurization device provided in an embodiment of the present invention.

[0021] icon: 10-inflatable bag; 20-pressure measurement module; 30-controller; 201-actual force measurement unit; 202-inflating pressure measurement unit; 301-pressure adjustment module; 302-baseline pressure setting module; 303-pressure feedback module; 304-pressure real-time monitoring module. DETAILED DESCRIPTION

[0022] In order to make the purpose, technical solution and advantages of the embodiments of the present invention clearer, the technical solution of the present invention will be clearly and completely described below in conjunction with the accompanying drawings. Obviously, the described embodiments are part of the embodiments of the present invention, not all of the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the present invention.

[0023] At present, the IPC devices commonly used in clinical practice have the following problems: (1) There are only three sizes of leg cuffs: large, medium and small. In actual use, the leg cuffs may become loose or not stick tightly. (2) The IPC device will no longer inflate after the air pressure applied to the legs reaches a certain value in the initial stage. The pressure value of each subsequent inflation will remain at the initial level and will not change. During use, the leg cuffs may become loose or not stick tightly. The fixed pressure value will directly affect the actual force applied by the IPC to the patient's legs. (3) The actual pressure level acting on the user's legs during the use of the IPC device cannot be reflected, and the actual effect of the IPC cannot be evaluated. (4) The electric air pump device that comes with the IPC is large in size and is only suitable for medical scenarios. It cannot meet the user's usage needs after being discharged from the hospital and returning home.

[0024] Based on this, an intermittent inflation and pressurization device and a pressure measurement method provided by an embodiment of the present invention can adjust the inflation pressure in real time according to the actual force of the IPC device, thereby improving the problem of the fixed output pressure of the IPC device.

[0025] To facilitate understanding of this embodiment, an intermittent inflation and pressurization device disclosed in an embodiment of the present invention is first introduced in detail. Figure 1 The structural block diagram of an intermittent inflation and pressurization device shown schematically illustrates that the device mainly includes the following parts: an inflatable bag 10, a pressure measurement module 20 and a controller 30; wherein the pressure measurement module 20 includes: an actual force measurement unit 201 and an inflation pressure measurement unit 202, and the controller 30 includes a pressure adjustment module 301.

[0026] The actual force measurement unit 201 is used to measure the actual force applied to the user's limbs and store the user's baseline actual force range. Specifically, the actual force measurement unit 201 includes: a force sensor; during the measurement process, the force sensor is arranged between the inflatable bag and the limb surface, and the sensing surface of the force sensor is in direct contact with the limb surface.

[0027] In specific implementation, the actual force measurement unit 201 (i.e., the skin surface pressure detection unit) is mainly used to measure the actual force applied by the IPC device to the user's calf. By placing the force sensor between the gas in the inflatable bag and the surface of the limb, its sensing surface can directly contact the surface of the limb, thereby measuring the actual force applied by the gas in the inflatable bag to the surface of the limb.

[0028] The inflation pressure measuring unit 202 is used to measure the inflation pressure applied by the gas in the inflatable bag to the surface of the user's limbs and store the user's baseline inflation pressure range. Specifically, the inflation pressure measuring unit 202 includes: a pressure sensor disposed in the inflatable bag.

[0029] In a specific implementation, the inflation pressure measuring unit 202 (ie, the gas pressure detection unit in the inflation bag) measures the gas pressure in the inflation bag through a pressure sensor to reflect the inflation pressure of the IPC device.

[0030] The pressure adjustment module 301 is used to adjust the inflation pressure in real time based on a predetermined functional change relationship between the actual force and the inflation pressure, so that the actual force is maintained within the baseline actual force range.

[0031] In specific implementation, if it is detected that the actual force deviates from the set baseline actual force range, the inflation pressure can be automatically adjusted based on the predetermined functional change relationship between the actual force and the inflation pressure to ensure that the actual force always remains within the baseline actual force range. Specifically, the actual force felt by the calf is monitored in real time by the skin surface pressure detection unit, and the computer program of the pressure adjustment module 301 is fed back in real time to adjust the gas pressure in the inflation bag in real time, and the dynamic calibration balance between the two is continuously achieved, so as to achieve the purpose of real-time dynamic adjustment of the gas pressure in the inflation bag.

[0032] In the embodiment of the present invention, a pressure adjustment interval range (i.e., a baseline actual force range, for example, baseline pressure ±3 mmHg) can be set. For example, if the baseline pressure is 40 mmHg, the baseline actual force range should be between 37 and 43 mmHg. When the actual force exceeds the adjustment interval range value (for example, lower than 37 mmHg or higher than 43 mmHg), the adjustment of the gas pressure in the inflatable bag is triggered. The computer program of the pressure adjustment module 301 can automatically monitor the current actual force every 5 minutes and compare it with the set baseline actual force range. If the current actual force exceeds the range of ±3 mmHg, the inflation or deflating mechanism of the airbag is activated to dynamically adjust the inflation pressure.

[0033] The intermittent inflation and pressurization device provided by the present invention can monitor the actual force and inflation pressure applied to the user's limbs in real time through the actual force measuring unit and the inflation pressure measuring unit, and can adjust the inflation pressure in real time according to the actual force, thereby improving the problem of fixed pressure of the IPC device.

[0034] In one embodiment, see Figure 2 As shown, the controller 30 further includes: a baseline pressure setting module 302 for setting a baseline actual force range of a user and a corresponding baseline inflation pressure range.

[0035] In a specific implementation, after the user wears the IPC device, the inflatable bag is inflated and deflated multiple times, and the actual force and inflation pressure during the inflation and deflation process are recorded. The baseline pressure setting module 302 can set the user's baseline actual force range and the corresponding baseline inflation pressure range according to the recorded actual force and inflation pressure data.

[0036] Specifically, the process of the baseline pressure setting module 302 setting the user's baseline actual force range and the corresponding baseline inflation pressure range is shown in (1)-(6) as follows: (1) After the user correctly wears the intermittent inflation and pressurization device, the inflatable bag is inflated for the first time, and the inflation is stopped when the actual force reaches a first preset value, and the actual force and inflation pressure of the first inflation are obtained. After the first preset time, the inflatable bag is deflated for the first time, and the actual force and inflation pressure of the first deflation are obtained.

[0037] In the specific implementation, the user wears the IPC device and ensures that the IPC device is correctly worn on the user's calf, and the inflatable bag is aimed at the target area. After the IPC device is worn, the IPC device is started, the system starts to run, and enters the pressure test and adjustment stage. First, the inflatable bag is inflated for the first time, and the pressure in the inflatable bag is gradually increased by inflation; when the actual force measurement unit 201 measures the actual force to be 40 mmHg (i.e., the first preset value), the inflation is stopped, and the actual force and inflation pressure of the first inflation are recorded, that is, the actual force measurement unit 201 records the actual force applied to the surface of the user's limbs, and the inflation pressure measurement unit 202 records the actual inflation pressure value after the inflatable bag is inflated.

[0038] Furthermore, after a first preset time (such as 11 seconds), the inflatable bag is deflated for the first time to reduce the pressure inside the airbag, and the pressure measurement module 20 records the actual force and inflation pressure of the first deflation, that is, the actual force measurement unit 201 records the actual force applied to the surface of the user's limbs, and the inflation pressure measurement unit 202 records the inflation pressure value of the inflatable bag after deflation.

[0039] (2) Inflate the inflatable bag for a second time, stop inflating when the actual force reaches a second preset value, obtain the actual force and inflation pressure of the second inflation, and deflate the inflatable bag for a second time after the first preset time, and obtain the actual force and inflation pressure of the second deflation.

[0040] In the specific implementation, the inflatable bag is inflated for the second time. When the actual force measurement unit 201 measures the actual force to be 45 mmHg (i.e., the second preset value), the inflation is stopped, and the actual force and inflation pressure of the second inflation are recorded. After a period of time (i.e., the first preset time), the second deflation begins, and the pressure measurement module 20 records the actual force and inflation pressure of the second deflation.

[0041] (3) Inflate the inflatable bag for a third time, stop inflating when the actual force reaches a third preset value, obtain the actual force and inflation pressure of the third inflation, and deflate the inflatable bag for a third time after the first preset time, and obtain the actual force and inflation pressure of the third deflation.

[0042] In the specific implementation, the inflatable bag is inflated for the third time. When the actual force measurement unit 201 measures the actual force to be 48 mmHg (i.e., the third preset value), the inflation is stopped, and the actual force and inflation pressure of the third inflation are recorded. After a period of time (i.e., the first preset time), the third deflation begins, and the pressure measurement module 20 records the actual force and inflation pressure of the third deflation.

[0043] (4) Inflate the inflatable bag for a fourth time, stop inflating when the actual force reaches a fourth preset value, obtain the actual force and inflation pressure of the fourth inflation, and deflate the inflatable bag for a fourth time after the first preset time, and obtain the actual force and inflation pressure of the fourth deflation.

[0044] In the specific implementation, the inflation and deflation process is repeated again to ensure that the pressure change between inflation and deflation is clear and measurable. Specifically, the inflatable bag is inflated for the fourth time. When the actual force measurement unit 201 measures the actual force to be 50 mmHg (i.e., the fourth preset value), the inflation is stopped, and the actual force and inflation pressure of the fourth inflation are recorded. After a period of time (i.e., the first preset time), the fourth deflation begins, and the pressure measurement module 20 records the actual force and inflation pressure of the fourth deflation.

[0045] In the embodiment of the present invention, during the inflation process, the inflation is performed according to a preset computer program so that the actual force reaches a preset value; during the deflation process, the pressure of the inflatable bag is gradually reduced from the current inflation pressure recorded by the inflation pressure measurement unit 202 within a preset time by using a step-by-step decompression method. For example, within 11 seconds, the pressure of the inflatable bag is gradually reduced from the current inflation pressure of 40 mmHg to 90% (36 mmHg), 80% (32 mmHg), 70% (28 mmHg) and 60% (24 mmHg) of the current inflation pressure, and the pressure is kept stable.

[0046] (5) Based on the actual forces and inflation pressures obtained during the four inflations and deflations, data fitting is performed to determine the baseline actual force range and the corresponding baseline inflation pressure range, as well as the relationship model between the baseline actual force and the baseline inflation pressure.

[0047] In the specific implementation, data fitting is performed based on the measurement results during the four inflation and deflation processes (including: the actual force and inflation pressure during the four inflation and deflation processes), and the relationship between the actual force and inflation pressure is analyzed. Specifically, the actual force and inflation pressure can be derived through linear regression or other mathematical models. In the data fitting process, for a single force sensor and the inflation pressure relationship that satisfies . Wherein, F(t) is the inflation pressure, K is the linear coefficient, P(t) is the actual force, and F_base is the initial force value of the inflation pressure. For multiple measurements of inflation to the preset value, the change of the value should fluctuate within a range. For values ​​outside the range, the value can be considered inaccurate. In this embodiment, data can be screened according to the 3δ principle.

[0048] Furthermore, in an embodiment of the present invention, when the baseline actual force is 40 mmHg, a suitable range of inflation pressure (i.e., baseline inflation pressure range) can be set. This range is obtained through measurement and analysis, and is usually within a certain error range (e.g., ±3 mmHg), thereby ensuring that the user is always in a safe and effective treatment pressure range. Of course, the baseline actual force will usually also have a certain numerical fluctuation, i.e., the baseline actual force range (error range is ±3 mmHg). Then, a relationship model between the baseline actual force and the baseline inflation pressure is determined, and the baseline actual force range is stored in the actual force measurement unit 201 and the baseline inflation pressure range is stored in the inflation pressure measurement unit 202.

[0049] In the embodiment of the present invention, setting the baseline actual force range and the baseline inflation pressure range has the following advantages: (1) Safety: The set baseline inflation pressure range meets the medical safety standards and can prevent excessive inflation pressure from causing discomfort or damage to the user. The baseline inflation pressure range can be used to understand the range of changes in the gas pressure value in the inflatable bag and calculate the maximum gas pressure in the inflatable bag. During actual use, it cannot exceed the preset limit to prevent excessive inflation from causing harm to the user. If the gas pressure value in the inflatable bag exceeds the preset limit, the actual force measurement unit still does not reach the target value (for example, 40 mmHg), then the alarm program is activated, and it is necessary to check whether the airbag is tightly wrapped around the calf and verify again whether the inflation pressure range is appropriate to avoid causing damage to the user. (2) Accuracy: By adjusting the inflation pressure according to the numerical change of the actual force, a more accurate pressure can be applied to the calf.

[0050] (6) Verify the relationship model between the baseline actual force and the baseline inflation pressure, and establish an individualized pressure measurement model after the verification; the individualized pressure measurement model is used to characterize the functional change relationship between the actual force and the inflation pressure.

[0051] In specific implementation, after the baseline actual force range and the baseline inflation pressure range are set, the test is performed again, that is, the relationship between the baseline actual force and the baseline inflation pressure is reversely verified. The verification process includes: inflating the inflatable bag to the baseline inflation pressure setting value (calculated by the individualized pressure measurement model), and judging whether the current actual force reaches the baseline actual force range. If so, the verification is passed.

[0052] Specifically, first, according to the actual force required by the user, the baseline inflation pressure setting value is calculated according to the individualized pressure measurement model; then the inflatable bag is inflated, and when the inflation pressure reaches the baseline inflation pressure setting value (for example, 40 mmHg), the actual force measurement unit 201 is obtained to measure the current actual force, and it is determined whether the current actual force can reach the baseline actual force range, that is, the interval range of 40 mmHg ± 3 mmHg; if the verification is successful, the computer program of the baseline pressure setting module 302 automatically records the individualized pressure measurement model, that is, the functional change relationship between the actual force and the inflation pressure. For each user, the computer program will calculate the individualized pressure measurement model.

[0053] In the embodiment of the present invention, the relationship between the actual force of the individual and the inflation pressure satisfies the following formula: , where F(t) is the inflation pressure, P(t) is the actual force, and W, C, and M correspond to the physiological characteristic parameters of different individuals, namely weight, leg circumference, and muscle hardness. A large number of experiments were conducted on people with different weights W, leg circumferences C, and muscle hardness M. The physiological characteristics W, C, M, and the F(t) and P(t) values ​​of the sensors were recorded in the experiments. K(W,C,M) and F_base(W,C,M) were obtained by data fitting, thus obtaining the function This function can be used in subsequent treatments. After measuring P(t), the F(t) value during treatment can be obtained, and then this value can be compared with the F value of the ideal treatment effect.

[0054] In one embodiment, see Figure 2 As shown, the controller 30 further includes: a pressure feedback module 303, which is used to monitor the change trend of the individualized pressure measurement model at every second preset time interval during the operation of the intermittent pneumatic pressurization device, and provide real-time pressure feedback. In specific implementation, during the operation of the IPC device, the change trend of the individualized pressure measurement model can be automatically monitored every 5 minutes, and real-time pressure feedback can be provided.

[0055] In one embodiment, see Figure 2 As shown, the controller 30 also includes a real-time pressure monitoring module 304, which is used to monitor whether the actual force reaches the baseline actual force range, and to monitor the time percentage of the actual force reaching the baseline actual force range, and based on an individualized pressure measurement model, to display the changing relationship and changing trend between the actual force and the inflation pressure in real time.

[0056] In specific implementation, according to the force sensor data of the actual force measurement unit 201, the skin surface pressure (i.e., actual force) is monitored in real time to see whether it meets the standard (whether the actual force actually felt reaches the baseline actual force range), as well as the percentage of time to meet the standard; in the embodiment of the present invention, the controller 30 can be connected to a display, and the real-time pressure monitoring module 304 can use the display to display the change curve of the individualized pressure measurement model, and display the change relationship and change trend between the actual force and the inflation pressure in real time, so as to achieve real-time feedback and real-time evaluation of the IPC effect. In the embodiment of the present invention, the IPC device can monitor the actual effect status of the user's application of the IPC device in real time to ensure the continued effectiveness and comfort of the treatment.

[0057] In one embodiment, see Figure 3 As shown, the intermittent inflation and pressurization device also includes: an integrated leg cuff structure, an inflation pump and a control device; wherein, the inflatable bag and the pressure measurement module are arranged in the integrated leg cuff structure, the controller and the inflation pump are arranged in the control device, and the control device also includes a display; the inflatable bag also includes: an inflation tube, the inflation tube is connected to the inflation pump in the control device, and the inflation tube includes: an air inlet pipe and an air outlet pipe.

[0058] In specific implementation, the integrated leg cover design can completely wrap the user's entire calf, and is not affected by the looseness of the adhesive leg cover and the loose connection. At the same time, the size of the IPC device is reduced, which is convenient for promotion to home use scenarios. Batteries can be installed, which is convenient to carry around and is not affected by the presence or absence of power.

[0059] The intermittent pneumatic pressurization device provided in the embodiment of the present invention has an integrated leg cuff design that reduces the problem of loose connection and easy loosening of adhesive leg cuffs; the IPC inflation pressure is adjusted in real time according to the actual force of the leg contacting the IPC, which solves the problem of the fixed output pressure of the IPC device and ensures that the IPC continuously and effectively acts on the calf; the screen displays the changes in the relationship curve between the actual force of the IPC and the IPC inflation pressure in real time to evaluate the IPC action time and effect; the size of the IPC device is reduced, which is easy to carry and can be promoted to home scenarios.

[0060] For the intermittent inflation and pressurization device provided in the above embodiment, the present invention also provides a pressure measurement method, see Figure 4 As shown, the method mainly includes the following steps S401 to S403: Step S401: measuring the actual force applied to the user's limbs by an actual force measurement unit; Step S402: measuring the inflation pressure of the gas in the inflatable bag applied to the surface of the user's limbs through an inflation pressure measuring unit; Step S403: The inflation pressure is adjusted in real time by the pressure adjustment module based on a predetermined functional change relationship between the actual force and the inflation pressure, so that the actual force is maintained within the baseline actual force range.

[0061] In specific implementation, the pressure adjustment module 301 needs to set the user's baseline actual force range and the corresponding baseline inflation pressure range according to the recorded actual force and inflation pressure data through the baseline pressure setting module 302 before performing pressure adjustment; during the operation of the intermittent inflation and pressurization device, the pressure feedback module 303 can monitor the change trend of the individualized pressure measurement model at every second preset time interval and perform real-time pressure feedback; at the same time, the real-time pressure monitoring module 304 can monitor whether the actual force reaches the baseline actual force range during the operation of the inflation and pressurization device, and monitor the percentage of time that the actual force reaches the baseline actual force range, and based on the individualized pressure measurement model, display the change relationship and change trend between the actual force and the inflation pressure in real time, see for details Figure 5 shown.

[0062] The pressure detection method provided by the present invention can monitor the actual force and inflation pressure applied to the user's limbs in real time through the actual force measuring unit and the inflation pressure measuring unit, and can adjust the inflation pressure in real time according to the actual force size, thereby improving the problem of fixed output pressure of the IPC device.

[0063] It should be noted that the implementation principle and technical effects of the method provided in the embodiment of the present invention are the same as those of the aforementioned device embodiment. For the sake of brief description, for matters not mentioned in the method embodiment, reference can be made to the corresponding contents in the aforementioned device embodiment. The specific numerical values ​​provided in the implementation of the present invention are only exemplary and are not limited here.

[0064] Finally, it should be noted that the above-described embodiments are only specific implementations of the present invention, which are used to illustrate the technical solutions of the present invention, rather than to limit them. The protection scope of the present invention is not limited thereto. Although the present invention is described in detail with reference to the above-mentioned embodiments, ordinary technicians in the field should understand that any technician familiar with the technical field can still modify the technical solutions recorded in the above-mentioned embodiments within the technical scope disclosed by the present invention, or can easily think of changes, or make equivalent replacements for some of the technical features therein; and these modifications, changes or replacements do not make the essence of the corresponding technical solutions deviate from the spirit and scope of the technical solutions of the embodiments of the present invention, and should be included in the protection scope of the present invention. Therefore, the protection scope of the present invention shall be based on the protection scope of the claims.

Claims

1. An intermittent inflation and pressurization device, characterized in that: include: Inflatable bag, pressure measurement module and controller; wherein, the pressure measurement module includes: an actual force measurement unit and an inflation pressure measurement unit, and the controller includes: a pressure adjustment module; The actual force measurement unit is used to measure the actual force applied to the user's limbs and store the user's baseline actual force range; The inflation pressure measurement unit is used to measure the inflation pressure applied by the gas in the inflatable bag to the surface of the user's limbs, and store the user's baseline inflation pressure range; The pressure adjustment module is used to adjust the inflation pressure in real time based on a predetermined functional change relationship between the actual force and the inflation pressure, so that the actual force is maintained within a baseline actual force range.

2. The device according to claim 1, characterized in that The actual force measurement unit comprises: a force sensor; during the measurement process, the force sensor is arranged between the inflatable bag and the surface of the limb, and the sensing surface of the force sensor is in direct contact with the surface of the limb; The inflation pressure measuring unit includes a pressure sensor arranged on the inflatable bag.

3. The device according to claim 1, characterized in that The controller further comprises: a baseline pressure setting module, which is used to set the user's baseline actual force range and the corresponding baseline inflation pressure range.

4. The device according to claim 3, characterized in that The baseline pressure setting module is specifically used for: After the user correctly wears the intermittent inflation and pressurization device, the inflatable bag is inflated for the first time, and the inflation is stopped when the actual force reaches a first preset value, and the actual force and inflation pressure of the first inflation are obtained; and after a first preset time, the inflatable bag is deflated for the first time, and the actual force and inflation pressure of the first deflation are obtained; Inflate the inflatable bag for a second time, stop inflating when the actual force reaches a second preset value, obtain the actual force and inflation pressure of the second inflation, and deflate the inflatable bag for a second time after the first preset time, and obtain the actual force and inflation pressure of the second deflation; Inflate the inflatable bag for a third time, stop inflating when the actual force reaches a third preset value, obtain the actual force and inflation pressure of the third inflation, and deflate the inflatable bag for a third time after the first preset time, and obtain the actual force and inflation pressure of the third deflation; Inflate the inflatable bag for a fourth time, stop inflating when the actual force reaches a fourth preset value, obtain the actual force and inflation pressure of the fourth inflation, and deflate the inflatable bag for a fourth time after the first preset time, and obtain the actual force and inflation pressure of the fourth deflation; Data fitting is performed based on the actual forces and inflation pressures obtained during the four inflations and deflations to determine a baseline actual force range and a corresponding baseline inflation pressure range, as well as a relationship model between the baseline actual force and the baseline inflation pressure.

5. The device according to claim 4, characterized in that The baseline pressure setting module is also used to: verify the relationship model between the baseline actual force and the baseline inflation pressure, and establish an individualized pressure measurement model after the verification; wherein the individualized pressure measurement model is used to characterize the functional change relationship between the actual force and the inflation pressure; the verification process includes: inflating the inflatable bag to the baseline inflation pressure setting value, judging whether the current actual force reaches the baseline actual force range, and if so, the verification passes; the baseline inflation pressure setting value is calculated by the individualized pressure measurement model.

6. The device according to claim 5, characterized in that The controller further comprises: a pressure feedback module, which is used to monitor the change trend of the individualized pressure measurement model at intervals of a second preset time during the operation of the intermittent inflation and pressurization device, and to perform real-time pressure feedback.

7. The device according to claim 5, characterized in that The controller further comprises: a real-time pressure monitoring module, which is used to monitor whether the actual force reaches the baseline actual force range, and to monitor the time percentage that the actual force reaches the baseline actual force range.

8. The device according to claim 7, characterized in that The real-time pressure monitoring module is also used to: based on the individualized pressure measurement model, display the change relationship and change trend between the actual force and the inflation pressure in real time.

9. The device according to claim 1, characterized in that The intermittent inflation and pressurization device further comprises: an integrated leg cover structure, an air pump and a control device; wherein the inflatable bag and the pressure measurement module are arranged in the integrated leg cover structure, the controller and the air pump are arranged in the control device, and the control device further comprises a display; The inflatable bag further comprises an inflatable tube, which is connected to an inflatable pump in the control device, and comprises an air inlet tube and an air outlet tube.

10. A pressure measurement method, characterized in that: The intermittent pneumatic pressurization device according to any one of claims 1 to 9 comprises: Measuring the actual force applied to the user's limbs by an actual force measuring unit; The inflation pressure applied by the gas in the inflatable bag to the surface of the user's limbs is measured by an inflation pressure measuring unit; The inflation pressure is adjusted in real time by a pressure adjustment module based on a predetermined functional relationship between the actual force and the inflation pressure, so that the actual force is maintained within a baseline actual force range.

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