Air pressure control method, device and system of pulse air pressure therapeutic apparatus

Abstract

The invention discloses an air pressure control method, device and system for a pulse air pressure therapeutic apparatus. The pulse air pressure therapeutic apparatus comprises an air pump, an air storage tank and a sheath air bag which are sequentially communicated. The air pressure control method comprises the following steps: determining set storage tank air pressure corresponding to the sheath air bag according to a sheath model of the sheath air bag and a predetermined first corresponding relation between the sheath model and the set storage tank air pressure; the air pump is controlled to inflate the air storage tank to a set air pressure; when the moment of inflating the sheath air bag is reached, a control valve between the air storage tank and the sheath air bag is controlled to be opened, and the opening duration is set duration, so that the sheath air bag is inflated to the target treatment air pressure within the set duration. According to the pulse air pressure therapeutic apparatus, the air pressure difference between the air storage tank and the sheath air bag is utilized, the sheath air bag is rapidly inflated by the air storage tank, the problem that the inflation speed of the air pump to the sheath air bag in a short time has an upper limit is solved, and the physical therapy effect of the pulse air pressure therapeutic apparatus is effectively guaranteed.

Description

Technical Field

[0001] The present invention relates to the technical field of pulse air pressure therapy, and in particular to an air pressure control method, device and system of a pulse air pressure therapy apparatus. Background Art

[0002] When people walk, the soles of their feet come into contact with the ground and the arches of their feet are flattened. The blood in the plantar venous plexus is violently displaced back into the deep veins of the lower limbs. The blood flow generated has a strong impact force, so that when people stand, the blood flows back from the feet to the right atrium without the need for any muscle contraction assistance. This phenomenon is called "physiological foot pump."

[0003] The arteriovenous pulse air pressure therapy device is a physical therapy device that imitates the work of a physiological foot pump. It applies a sufficiently large air pressure shock to the sole of the patient's foot, imitating the blood flow impact force generated at the sole of the foot at the moment the foot touches the ground, giving the sole of the foot enough energy to empty the plantar vein from blood and shoot it into the deep veins of the lower limbs, speeding up the venous return rate, thereby improving the insufficient blood supply to the extremities and promoting the elimination of limb edema. However, in order to use the pulse air pressure therapy device to truly simulate the effect of the "physiological foot pump", it is necessary to reach the required air pressure size in a very short time of 0.2-0.3 seconds. Due to the limitation of the air pump power, it is difficult for the current pulse air pressure therapy device to achieve such a fast rising speed of the shock air pressure applied to the sole of the foot, which in turn limits the therapeutic effect of the pulse air pressure therapy device. Summary of the invention

[0004] The purpose of the present invention is to provide an air pressure control method, device and system for a pulse air pressure therapy device, which can simply and at low cost realize short-time rapid inflation of the sheath airbag and effectively ensure the therapeutic effect during the pulse air pressure therapy period.

[0005] In order to solve the above technical problems, the present invention provides an air pressure control method for a pulse air pressure therapy device, wherein the pulse air pressure therapy device comprises an air pump, an air storage tank and a sheath air bag which are connected in sequence; the air pressure control method comprises:

[0006] Determine the set tank air pressure corresponding to the sheath airbag according to the sheath model of the sheath airbag and a predetermined first correspondence between the sheath model and the set tank air pressure;

[0007] Controlling the air pump to inflate the air storage tank to the set air pressure of the air storage tank;

[0008] When the time comes to inflate the sheath airbag, the control valve between the gas storage tank and the sheath airbag is controlled to open and the opening time is set, so that the sheath airbag is inflated to the target treatment pressure within the set time; wherein the set tank pressure is not less than 3 times the target treatment pressure.

[0009] In an optional embodiment of the present application, the process of predetermining the first corresponding relationship includes:

[0010] Determine the corresponding initial setting tank air pressure according to the sheath model of the current sheath airbag;

[0011] Controlling the air pump to fill the air tank with air until the air pressure in the air tank reaches the initially set tank air pressure;

[0012] Control the control valve between the gas storage tank and the current sheath airbag to open for the set time period;

[0013] Determining whether the airbag pressure of the sheath airbag reaches the target treatment air pressure;

[0014] If yes, the initial set tank air pressure is used as the set tank air pressure corresponding to the current sheath airbag;

[0015] If not, the size of the initially set tank air pressure is adjusted, and the operation of controlling the air pump to fill the tank with air until the air pressure in the tank reaches the initially set tank air pressure is re-executed;

[0016] Determine whether the set tank air pressure corresponding to the sheath airbags of all sheath models has been determined;

[0017] If not, replace the sheath airbag of the next sheath model as the new current sheath airbag, and re-execute the operation of determining the corresponding initial setting tank air pressure according to the sheath model of the current sheath airbag;

[0018] If so, the first corresponding relationship is established according to the sheath model of each sheath airbag and the corresponding set tank air pressure.

[0019] In an optional embodiment of the present application, it also includes:

[0020] When the opening time of the control valve between the gas storage tank and the sheath airbag reaches the set time, determining whether the absolute value of the first difference between the current air pressure in the sheath airbag and the target treatment air pressure is greater than a first air pressure threshold;

[0021] If the current air pressure is less than the target treatment air pressure and the absolute value of the first difference is greater than the first air pressure threshold, air is supplemented into the sheath airbag, and the set storage tank air pressure corresponding to the sheath model of the sheath airbag in the first corresponding relationship is increased by a set air pressure increment; wherein the set air pressure increment is one fifth of the air pressure difference between the set storage tank air pressure currently corresponding to a sheath model that is one size larger than the sheath model of the sheath airbag and the set storage tank air pressure corresponding to the sheath model of the sheath airbag;

[0022] If the current air pressure is greater than the target treatment air pressure and the absolute value of the first difference is greater than the first air pressure threshold, air is deflated into the sheath airbag, and the set tank air pressure corresponding to the sheath model of the sheath airbag in the first corresponding relationship is reduced by the set air pressure reduction; wherein the set air pressure reduction is one-fifth of the air pressure difference between the set tank air pressure currently corresponding to the sheath model of the sheath airbag and the set tank air pressure corresponding to a sheath model that is one size smaller than the sheath model of the sheath airbag.

[0023] In an optional embodiment of the present application, after the air pressure in the sheath balloon reaches the target treatment air pressure, the method further comprises:

[0024] monitoring the air pressure data in the sheath airbag in real time, and determining whether the absolute value of a second difference between the air pressure data and the target treatment air pressure is greater than a second air pressure threshold;

[0025] When the air pressure data is greater than the target treatment air pressure and the absolute value of the second difference is greater than the second air pressure threshold, the sheath airbag is inflated;

[0026] When the target treatment air pressure is less than the air pressure data and the absolute value of the second difference is greater than the second air pressure threshold, the sheath airbag is deflated.

[0027] In an optional embodiment of the present application, before determining the set tank air pressure corresponding to the sheath airbag, the method further includes:

[0028] Controlling the air pump to fill the air tank with air until the air pressure in the air tank reaches the calibrated tank air pressure;

[0029] Controlling the control valve between the gas storage tank and the sheath airbag to open, so that the gas storage tank fills the sheath airbag with airflow, and recording the calibrated inflation time when the air pressure in the sheath airbag reaches the calibrated airbag pressure;

[0030] The sheath model corresponding to the current sheath airbag is determined according to the calibrated inflation time and a predetermined second corresponding relationship between the calibrated inflation time and the sheath model.

[0031] In an optional embodiment of the present application, the process of predetermining the second corresponding relationship includes:

[0032] Control the gas storage tank to fill the sheath airbags of different sheath models with airflow under the condition that the initial air pressure is the calibrated gas storage tank pressure until the airbag pressure reaches the calibrated airbag pressure, and record the calibrated inflation time corresponding to the airbag pressure of the sheath airbag of each sheath model reaching the calibrated airbag pressure;

[0033] The second corresponding relationship is created according to the calibrated inflation time corresponding to the sheath airbag of each sheath model.

[0034] In an optional embodiment of the present application, when the time for inflating the sheath airbag is reached, controlling the control valve between the air storage tank and the sheath airbag to open for a set time period includes:

[0035] When the time for inflating the first sheath airbag in the pair of sheath airbags is reached, the control valve between the gas storage tank and the first sheath airbag is controlled to be opened and the opening time is set; and when the time for which the air pressure of the first sheath airbag is maintained at the target treatment air pressure reaches the target treatment time, the first sheath airbag is deflated;

[0036] Before the moment of inflating the second sheath airbag in the pair of sheath airbags is reached, controlling the air pump to inflate the air storage tank to the set air pressure of the air storage tank;

[0037] When the time for inflating the second sheath airbag is reached, the control valve between the gas storage tank and the second sheath airbag is controlled to open and the opening time is set; and when the air pressure of the second sheath airbag is maintained at the target treatment air pressure for a period of time that reaches the target treatment time, the second sheath airbag is deflated;

[0038] Before the time of the next inflation of the first sheath airbag is reached, the air pump is controlled to inflate the air tank to the set air tank pressure, so that the two sheath airbags in a pair are cyclically and alternately inflated.

[0039] A gas pressure control device for a pulse gas pressure therapeutic apparatus, comprising:

[0040] An air pressure calculation module, used for determining the set tank air pressure corresponding to the sheath airbag according to the sheath model of the sheath airbag and a predetermined first correspondence between the sheath model and the set tank air pressure;

[0041] A first inflation module, used for controlling the air pump to inflate the air storage tank to the set air pressure of the air storage tank;

[0042] The second inflation module is used for controlling the control valve between the gas storage tank and the sheath airbag to open and open for a set time when the time to inflate the sheath airbag is reached, so that the sheath airbag is inflated to the target treatment pressure within the set time; wherein the set tank pressure is not less than 3 times the target treatment pressure.

[0043] A pneumatic pressure control system for a pulse pneumatic therapy apparatus, comprising a controller, an air pump, an air storage tank connected to the air pump, a sheath air bag detachably connected to the air storage tank, and a control valve disposed between the air storage tank and the sheath air bag;

[0044] The controller is connected to the air pump and the control valve, and is used to control the start and stop of the air pump, so as to control the air pump to inflate and stop inflation into the air tank, and to control the air tank to start and stop inflating the sheath air bag, so as to execute the steps of the air pressure control method of the pulse air pressure therapy device as described in any of the above items.

[0045] In an optional embodiment of the present application, it further includes an air supply pipeline arranged between the air storage tank and the sheath airbag;

[0046] The control valve includes a first control valve arranged between the gas storage tank and the gas supplement pipeline, and a second control valve arranged between the gas supplement pipeline and the sheath airbag.

[0047] The present invention provides an air pressure control method, device and system for a pulse air pressure therapy device, wherein the pulse air pressure therapy device comprises an air pump, an air storage tank and a sheath air bag which are air-connected in sequence; the air pressure control method comprises: determining the set tank air pressure corresponding to the sheath air bag according to the sheath model of the sheath air bag and a first correspondence between the sheath model and the set tank air pressure which is predetermined; controlling the air pump to inflate the tank to the set tank air pressure; and when the time for inflating the sheath air bag is reached, controlling the control valve between the air storage tank and the sheath air bag to open and the opening time is set, so that the sheath air bag is inflated to the target treatment air pressure within the set time.

[0048] The present application is different from the conventional method of using an air pump to directly inflate the sheath airbag. The air pump is first used to inflate the air tank to a relatively large set tank pressure. When it is necessary to fill the sheath airbag with air flow to make its air pressure reach the target treatment pressure required for treatment, only the control valve between the air tank and the sheath airbag is opened, thereby utilizing the huge air pressure difference between the air tank and the sheath airbag to achieve rapid inflation of the sheath airbag by the air tank, so that the sheath airbag can apply a relatively large impact pressure to the foot wearing the sheath airbag in a very short time. On the basis of not increasing the equipment cost too much, the present application breaks through the problem of the upper limit of the inflation speed of the sheath airbag in a short time caused by the air pump, and effectively ensures the therapeutic effect of the pulse air pressure therapy device. BRIEF DESCRIPTION OF THE DRAWINGS

[0049] In order to more clearly illustrate the embodiments of the present invention or the technical solutions of the prior art, the drawings required for use in the embodiments or the description of the prior art will be briefly introduced below. Obviously, the drawings described below are only some embodiments of the present invention. For ordinary technicians in this field, other drawings can be obtained based on these drawings without paying creative work.

[0050] Figure 1 It is a schematic diagram of the structure of the sheath airbag;

[0051] Figure 2 A schematic diagram of the framework structure of the air pressure control system of the pulse air pressure therapy device provided in the embodiment of the present application;

[0052] Figure 3 A flow chart of a method for controlling air pressure of a pulse air pressure therapy apparatus provided in an embodiment of the present application;

[0053] Figure 4 A schematic diagram of a process for creating a first corresponding relationship provided in an embodiment of the present application;

[0054] Figure 5 This is a structural block diagram of the air pressure control device of the pulse air pressure therapy device provided in an embodiment of the present invention. DETAILED DESCRIPTION

[0055] like Figure 1 As shown, the sheath airbag of the pulse air compression therapy device is similar to a foot cover worn on the human foot. In a conventional pulse air compression therapy device, the sheath airbag is generally directly connected to an air pump. When the sheath airbag needs to be inflated, the air pump is controlled to start inflation until the air pressure in the sheath airbag reaches the required treatment pressure. However, due to the limitation of the working power of the air pump in a short period of time, the speed of directly inflating the sheath airbag is also relatively limited. Correspondingly, it is difficult for the sheath airbag to quickly give the lower limbs a relatively large impact air pressure in a very short time, and the physical therapy effect on the patient's lower limbs is limited.

[0056] To this end, the present application provides an air pressure control method, device and system for a pulse air pressure therapy device, which can break through the limitation of the air pump inflation power, achieve rapid inflation of the sheath airbag, and thereby enhance the therapeutic effect of the pulse air pressure therapy device.

[0057] In order to enable those skilled in the art to better understand the scheme of the present invention, the present invention is further described in detail below in conjunction with the accompanying drawings and specific implementation methods. Obviously, the described embodiments are only part of the embodiments of the present invention, rather than all of the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field without making creative work are within the scope of protection of the present invention.

[0058] Reference Figure 2 and Figure 3 As shown, Figure 2 A schematic diagram of the framework structure of the air pressure control system of the pulse air pressure therapy device provided in the embodiment of the present application; Figure 3 A flow chart of the air pressure control method of the pulse air pressure therapy device provided in an embodiment of the present application.

[0059] like Figure 2 As shown, in the pulse air pressure therapy of the present application, the air pressure control system for inflating the sheath airbag 107 mainly includes a controller 100, an air pump 101 and an air tank 102, and the air tank 102 is connected to the sheath airbag 107; in actual application, the sheath airbag 107 connected to the air tank 102 can be replaced with different models to suit different users; and different sheath models are named and numbered according to the user's shoe size. For example, the sheath model suitable for users with a shoe size of 38 is size 38, thereby providing convenience for users to select sheath models. In addition, a control valve is also provided between the air tank 102 and the sheath airbag 107, that is, Figure 3 The first control valve 104 and the second control valve 106 are shown in FIG.

[0060] On this basis, in a specific embodiment of the present application, the air pressure control method of the pulse air pressure therapy device may include:

[0061] S11: Determine the set tank air pressure corresponding to the sheath airbag according to the sheath model of the sheath airbag and a predetermined first correspondence between the sheath model and the set tank air pressure.

[0062] S12: Control the air pump to inflate the air tank to the set tank pressure.

[0063] S13: When the time to inflate the sheath airbag is reached, the control valve between the gas storage tank and the sheath airbag is controlled to open and the opening time is set to a set time, so that the sheath airbag is inflated to the target treatment pressure within the set time; wherein, the set tank pressure is not less than 3 times the target treatment pressure.

[0064] Combination Figure 3 The framework structure diagram of the air pressure control system shown in the figure, in the present application, before the sheath airbag 107 is inflated, air flow is first filled into the air tank 102, so that the air pressure in the air tank 102 reaches a sufficiently large set tank air pressure; therefore, when the control valve between the air tank 102 and the sheath airbag 107 is opened, due to the relatively large air pressure in the air tank 102, the compressed air in the air tank 102 will be quickly released into the sheath airbag 107, that is, the sheath airbag 107 is quickly inflated; in this process, due to the huge air pressure difference between the air tank 102 and the sheath airbag 107, The speed of the air flow filled into the sheath airbag 107 by the air storage tank 102 is greatly improved, and this inflation speed can far exceed the speed of the air pump 101 directly inflating the sheath airbag 107, thereby enabling the sheath airbag 107 to achieve a rapid increase in air pressure to the target treatment air pressure in a very short time, and the duration of this inflation, that is, the set duration of the opening of the control valve, is approximately about 0.2s, which is basically the same as the blood pumping rate of the human heart, thereby more accurately and truly simulating the impact of the physiological foot blood pump on the blood circulation of the lower limbs, that is, it can better improve the treatment effect of the pulse air pressure therapy device. On this basis, in this application, it is only necessary to set an air storage tank 102 between the air pump 101 and the airbag sheath, and there is no particularly high power requirement for the air pump 101. It can be seen that in this application, the sheath airbag 107 can be quickly inflated at a low equipment cost to improve the treatment effect.

[0065] In addition, in order to ensure that the air pressure in the gas tank 102 can produce a sufficiently large air pressure difference relative to the sheath airbag 107, thereby ensuring the inflation speed, the set tank air pressure in the gas tank 102 can be more than 3 times the target treatment air pressure. In actual application, the size of the set tank air pressure can be determined based on the size of the sheath airbag 107. Generally speaking, the larger the size of the sheath airbag 107, the larger the set tank air pressure of the gas tank 102 needs to be. In short, it should be ensured that when the sheath airbag 107 When the air pressure inside has reached the target treatment pressure, there is a relatively large pressure difference between the air pressure in the air storage tank 102 and the air pressure in the sheath airbag 107, thereby ensuring that in the process from the air pressure in the sheath airbag 107 being 0 to increasing to the target treatment pressure, the air storage tank 102 can quickly fill the sheath airbag 107 with high-pressure airflow, avoiding the problem of a decrease in inflation speed due to a decrease in the air pressure difference between the air storage tank 102 and the sheath airbag 107, thereby ensuring the speed of filling the sheath airbag 107 with airflow.

[0066] Based on the above discussion, in order to ensure the inflation speed of the sheath airbag 107 by the air tank 102 , the set tank air pressure of the air tank 102 may be predetermined. As mentioned above, the set tank air pressure of the gas tank 102 is different based on the size of the sheath airbag 107, and the sizes of the sheath airbag 107 suitable for different users are different. For this reason, in this embodiment, the corresponding set tank air pressure can be determined in advance for the sheath airbags 107 of different sheath models, and then a first correspondence between the sheath model of the sheath airbag 107 and the corresponding set tank air pressure is created. Therefore, in actual applications, it is only necessary to determine the set tank air pressure of the gas tank 102 based on the sheath model corresponding to the currently applicable sheath airbag 107 and the first correspondence, and then control the air pump 101 to directly inflate the gas tank 102 according to the set tank air pressure; thereby ensuring the set tank air pressure can ensure that the gas tank 102 can inflate the sheath airbag 107 to the target treatment pressure within the set inflation time.

[0067] like Figure 4 As shown, in an optional embodiment of the present application, in the air pressure control method of the pulse air pressure therapy device, the process of creating the first corresponding relationship may include:

[0068] S21: Determine the corresponding initial setting tank air pressure according to the current sheath airbag sheath model;

[0069] S22: Control the air pump to fill the air tank with air until the air pressure in the air tank reaches the initial set tank air pressure;

[0070] S23: Control the opening time of the control valve between the gas storage tank and the current sheath airbag;

[0071] S24: Determine whether the airbag pressure of the sheath airbag reaches the target treatment air pressure, if not, proceed to S25, if yes, proceed to S26;

[0072] S25: adjust the initial setting of the tank gas pressure and enter S22;

[0073] S26: Using the initial set tank air pressure as the set tank air pressure corresponding to the current sheath airbag;

[0074] S27: Determine whether the set tank air pressure corresponding to the sheath airbags of all sheath models has been determined; if not, enter S28; if yes, enter S29;

[0075] S28: Replace the sheath airbag of the next sheath model as the new current sheath airbag, and enter S21;

[0076] S29: creating a first correspondence according to the sheath model of each sheath airbag and the corresponding set tank air pressure.

[0077] In practical applications, take the 48-code sheath airbag 107, the treatment air pressure (i.e., target treatment air pressure) required to be achieved by inflating the sheath airbag 107 is 27 kPa, and the inflation time is required to be 0.2 s as an example; the required air pressure in the gas storage tank 102 that enables the 48-code sheath airbag 107 to be inflated to 27 kPa in 0.2 s is numbered as Gas48P27; the process of determining the air pressure Gas48P27 of the gas storage tank 102 corresponding to the 48-code sheath airbag 107 includes:

[0078] The 48-code sheath airbag 107 and the gas tank 102 are connected by air. With 130kPa as the initial value of Gas48P27, the air pump 101 is controlled to start inflating the gas tank 102, and the air pressure in the gas tank 102 is measured in real time by the first air pressure sensor 103 until the air pressure in the gas tank 102 reaches 130kPa. The first control valve 104 and the second control valve 106 between the sheath airbag 107 and the gas tank 102 are opened synchronously. When the first control valve 104 and the second control valve 106 are opened for 0.2s, the first control valve 104 and the second control valve 106 are immediately closed; the air pressure in the 48-code sheath airbag 107 is measured by the second air pressure sensor 109.

[0079] If the air pressure in the sheath airbag 107 is greater than 27kPa+0.5kPa, it means that the initial value of Gas48P27 is too large; the gas in the sheath airbag 107 is emptied through the pressure relief valve, and the Gas48P27 in the gas tank 102 is adjusted to 129kPa, and the first control valve 104 and the second control valve 106 between the sheath airbag 107 and the gas tank 102 are opened synchronously, and the sheath airbag 107 is inflated for 0.2s. , measure the air pressure in the 48-yard sheath airbag 107 again. If the air pressure in the sheath airbag 107 is still greater than 27kPa+0.5kPa, adjust the Gas48P27 in the gas tank 102 to 128kPa, and inflate the sheath airbag 107 for 0.2s, until the air pressure in the sheath airbag 107 is measured to be within the range of 27kPa±0.5kPa, then record the current Gas48P27 of the gas tank 102.

[0080] If the pressure in the sheath airbag 107 is less than 27kPa-0.5kPa, it means that the initial value of Gas48P27 is too small; the gas in the sheath airbag 107 is discharged through the pressure relief valve, and the Gas48P27 in the gas tank 102 is adjusted to 131kPa, and then the first control valve 104 and the second control valve 106 are opened at a time of 0.2s, and the pressure in the sheath airbag 107 is measured again; repeat this process until the air pressure in the sheath airbag 107 is within the range of 27kPa±0.5kPa, and then record the current Gas48P27 of the gas tank 102.

[0081] In a similar manner, it is obvious that it is possible to determine that a plurality of different types of sheath airbags 107 correspond to the set tank air pressures of the gas tank 102 respectively, thereby creating a first corresponding relationship.

[0082] On this basis, further taking into account different treatment needs, there can be multiple target treatment air pressures corresponding to the sheath airbag 107 of the same sheath model. For example, in a similar manner to the above, the air pressure Gas48P26 in the gas tank 102 inflated to 26kPa in 0.2s of the 48-code sheath airbag 107 can also be determined, and the set tank pressures of Gas48P25, Gas48P24 and other gas tanks 102 can be determined in a similar manner.

[0083] Therefore, the first corresponding relationship created in this embodiment may be a corresponding relationship between the set tank air pressures of the gas storage tank 102 corresponding to the sheath airbags 107 of different sheath models at different target treatment air pressures.

[0084] Based on the above discussion, according to the first corresponding relationship created in this embodiment, when the gas storage tank 102 fills the sheath airbag 107 with airflow to reach any target treatment pressure, the inflation time can be guaranteed to be within the set time (about 0.2s).

[0085] Based on any of the above embodiments, the above first correspondence is generally created by the manufacturer measuring and testing standardized sheath airbags 107 of different models in sequence before the pulse air compression therapy device leaves the factory; however, in the process of the user actually using the pulse air compression therapy device, there are size differences between the sheath airbags 107 of each sheath model and the standardized sheath airbags 107 measured by the manufacturer, which may cause the above-created first correspondence to be inaccurate.

[0086] To this end, in another optional embodiment of the present application, in the process of executing the air pressure control method of the pulse air pressure therapy device, when the opening time of the control valve between the control gas storage tank 102 and the sheath airbag 107 reaches the set time, it can further include:

[0087] S14: Detect and determine whether the absolute value of the difference between the current air pressure in the sheath airbag and the target treatment air pressure exceeds a first air pressure threshold;

[0088] S15: If the current air pressure is less than the target treatment air pressure and the absolute value of the first difference is greater than the first air pressure threshold, air is added to the sheath airbag, and the set storage tank air pressure corresponding to the sheath model of the sheath airbag in the first corresponding relationship is increased by the set air pressure increment; wherein the set air pressure increment is one fifth of the air pressure difference between the set storage tank air pressure corresponding to a sheath model one size larger than the sheath model of the sheath airbag and the set storage tank air pressure currently corresponding to the sheath model of the sheath airbag;

[0089] S16: If the current air pressure is greater than the target treatment air pressure and the absolute value of the first difference is greater than the first air pressure threshold, air is deflated into the sheath airbag, and the set tank air pressure corresponding to the sheath model of the sheath airbag in the first corresponding relationship is reduced by the set air pressure reduction; wherein the set air pressure reduction is one-fifth of the air pressure difference between the set tank air pressure currently corresponding to the sheath model of the sheath airbag and the set tank air pressure corresponding to a sheath model that is one size smaller than the sheath model of the sheath airbag.

[0090] like Figure 3 As shown, in actual application, when the air tank 102 inflates the sheath airbag 107 for a set time according to the above step S13, that is to say, theoretically, the air pressure in the sheath airbag 107 at this time should be basically equal to the set airbag pressure. However, if the set tank air pressure in the pre-calibrated first corresponding relationship is inaccurate for the sheath airbag 107, then the air pressure in the sheath airbag 107 may be too high or too low.

[0091] To this end, in this embodiment, when the gas storage tank 102 finishes inflating the sheath airbag 107 and the control valve is closed, the current air pressure detected by the second air pressure sensor 109 for the sheath airbag 107 can be immediately compared with the target treatment air pressure. If the current air pressure is less than the target treatment air pressure, and the difference between the target treatment air pressure and the current air pressure is greater than the first air pressure threshold, it means that the set tank air pressure corresponding to the current sheath airbag 107 in the first corresponding relationship is too small. At this time, a certain amount of gas is refilled into the sheath airbag 107 to ensure that the difference between the air pressure in the sheath airbag 107 and the target treatment air pressure is less than the first air pressure threshold; the first air pressure threshold can be set to 0.5kPa.

[0092] It should be noted that, during the process of inflating the sheath airbag 107, if the air tank 102 is directly used to inflate the sheath airbag 107, because the pressure difference between the air tank 102 and the sheath airbag 107 is too large, and the air pressure that needs to be supplemented in the sheath airbag 107 is often relatively small, the time required for the air tank 102 to inflate the sheath airbag 107 is relatively short, and the control valve is correspondingly difficult to control, and it is difficult to ensure the accuracy of inflating the sheath airbag 107. For this reason, refer to Figure 3 A gas-inflating pipeline can be further arranged between the gas storage tank 102 and the sheath airbag 107, and the first control valve 104 is arranged between the gas storage tank 102 and the gas-inflating pipeline, and the second control valve 106 is arranged between the gas-inflating pipeline and the sheath airbag 107; the gas-inflating pipeline can be a tubular structure that is thicker than a conventional airflow duct, so that during the process of inflating the sheath airbag 107 from the gas storage tank 102, some compressed air is retained in the gas-inflating pipeline to replenish the sheath airbag 107. During the process of the air tank 102 filling the sheath airbag 107 with high-pressure airflow, the first control valve 104 and the second control valve 106 are opened synchronously, and the high-pressure airflow flows from the air tank 102 to the sheath airbag 107 through the air supply pipe. Obviously, the air pressure among the air tank 102, the air supply pipe and the sheath airbag 107 decreases successively; when the first control valve 104 and the second control valve 106 are closed at the same time, the air pressure among the air tank 102, the air supply pipe and the sheath airbag 107 can still be kept in a state of decreasing successively; therefore, when it is necessary to replenish air to the sheath airbag 107, only the second control valve 106 can be opened, and the air supply pipe can be used to replenish air to the sheath airbag 107.

[0093] Of course, in actual applications, in order to ensure that there is a sufficiently large air pressure difference between the air supply pipeline and the sheath airbag 107, so that the sheath airbag 107 can be effectively replenished with air, for this purpose, in the process of the air storage tank 102 inflating the sheath airbag 107, when the time duration for which the first control valve 104 and the second control valve 106 are opened at the same time reaches the set time duration, the second control valve 106 can be controlled to close first, and the first control valve 104 can be closed after a period of time, for example, delayed by 0.1s.

[0094] On this basis, because the set tank air pressure corresponding to the current sheath airbag 107 in the first correspondence is too small, the set tank air pressure in the first correspondence can also be corrected and updated; in this process, the set tank air pressure corresponding to the sheath airbag 107 of a sheath model that is one size larger than the sheath model of the sheath airbag 107 when it needs to be inflated to the same target treatment pressure can be calculated by difference with the set tank air pressure currently corresponding to the sheath airbag 107, and the result obtained by dividing the difference obtained by the calculation by 5 is used as the set air pressure increment. For example, if the current sheath airbag 107 has a sheath model of 37, the corresponding target treatment pressure is 27 kPa, and the corresponding set tank air pressure is expressed as Gas37P27, the set tank air pressure corresponding to the larger sheath airbag 107 under the same target treatment pressure can be expressed as Gas38P27, and thus, the set air pressure increment can be: (Gas38P27-Gas37P27) / 5; of course, it can be understood that if the current sheath airbag 107 corresponds to a target treatment pressure of 26 kPa, then the set air pressure increment is (Gas38P26-Gas37P26) / 5.

[0095] In this embodiment, one fifth of the difference between the set tank air pressures corresponding to the sheath airbag 107 and the larger sheath airbag 107 is used as the set air pressure increment to avoid excessive adjustment of the set tank air pressure. In actual applications, if the set tank air pressure corresponding to the sheath airbag 107 is increased five times in succession, and the difference between the air pressure in the sheath airbag 107 and the target treatment air pressure cannot be reduced to less than the first air pressure threshold, it means that the sheath airbag 107 may be damaged or the model is seriously inconsistent. At this time, the set tank air pressure corresponding to the sheath airbag 107 is no longer adjusted, but a fault alarm is directly issued.

[0096] Similar to the above-mentioned setting of the tank air pressure being too high, when the gas tank 102 finishes inflating the sheath airbag 107 and the control valve is closed, if the current air pressure detected by the sheath airbag 107 is greater than the target treatment air pressure, and the difference between the current air pressure and the target treatment air pressure is greater than the first air pressure threshold, it means that the set tank air pressure corresponding to the sheath airbag 107 in the first corresponding relationship is too high. At this time, the sheath airbag 107 can be appropriately deflated through the deflation valve 108, and the set tank air pressure corresponding to the sheath airbag 107 in the first corresponding relationship can be further reduced by a set reduction air pressure. The set reduction air pressure can be one-fifth of the difference between the set tank air pressure currently corresponding to the sheath airbag 107 and the set tank air pressure corresponding to the smaller sheath airbag 107 at the same target treatment air pressure. For example, if the current sheath airbag 107 has a sheath model of 37, the corresponding target treatment pressure is 27 kPa, and the corresponding set tank pressure is expressed as Gas37P27, the corresponding set tank pressure of the smaller sheath airbag 107 under the same target treatment pressure can be expressed as Gas36P27, and thus, the set pressure increment can be: (Gas37P27-Gas36P27) / 5; of course, it can be understood that if the target treatment pressure corresponding to the current sheath airbag 107 is The set air pressure is 26kPa, then the set air pressure increment is (Gas37P26-Gas36P26) / 5; similarly, if the set storage tank air pressure corresponding to the sheath airbag 107 is reduced 5 times in succession, and the difference between the air pressure in the sheath airbag 107 and the target treatment air pressure cannot be reduced to less than the first air pressure threshold, it means that the sheath airbag 107 may be faulty or seriously inconsistent with the model. At this time, the set storage tank air pressure corresponding to the sheath airbag 107 is no longer adjusted, but a fault alarm is directly issued.

[0097] Based on the above discussion, after the gas storage tank 102 inflates the air pressure in the sheath airbag 107 to the target treatment air pressure, the sheath airbag 107 needs to maintain the target treatment air pressure for a period of time. Therefore, in the air pressure control method of the pulse air pressure therapy device in the present application, after the air pressure in the sheath airbag 107 reaches the target treatment air pressure, it also includes:

[0098] S17: Real-time monitoring of air pressure data in the sheath airbag;

[0099] S18 determines whether the absolute value of the second difference between the air pressure data and the target treatment air pressure is greater than the second air pressure threshold;

[0100] S19: When the air pressure data is greater than the target treatment air pressure and the absolute value of the second difference is greater than the second air pressure threshold, the sheath airbag is inflated;

[0101] S110: When the target treatment air pressure is less than the air pressure data and the absolute value of the second difference is greater than the second air pressure threshold, the sheath airbag is deflated.

[0102] In this embodiment, in order to ensure the stability of the air pressure in the sheath airbag 107, the air pressure data in the sheath airbag 107 is monitored in real time, so as to prevent the air pressure in the sheath airbag 107 from seriously deviating from the target treatment pressure, that is, the absolute value of the difference between the air pressure data of the sheath airbag 107 and the target treatment pressure is greater than the second air pressure threshold, and the second air pressure threshold can be set to 1kPa, so as to maintain the air pressure in the sheath airbag 107 as stable as possible.

[0103] It is understandable that, in this embodiment, the sheath airbag 107 can also be inflated with air through an air inflating pipeline, and deflated with an air deflation valve 108 .

[0104] Based on any of the above embodiments, in another optional embodiment of the present application, in the air pressure control method of the pulse air pressure therapy device, before determining the set tank air pressure corresponding to the sheath airbag, it also includes:

[0105] Control the air pump to fill the air tank with air until the air pressure in the air tank reaches the calibrated tank air pressure;

[0106] Control the control valve between the air storage tank and the sheath airbag to open, so that the air storage tank can fill the sheath airbag with air, and record the calibrated inflation time when the air pressure in the sheath airbag reaches the calibrated airbag pressure;

[0107] The sheath model corresponding to the current sheath airbag 107 is determined according to the calibrated inflation time and a predetermined second corresponding relationship between the calibrated inflation time and the sheath model.

[0108] As mentioned above, before the sheath airbag 107 is inflated, it is necessary to determine the set tank air pressure corresponding to the sheath airbag 107 based on the sheath model of the sheath airbag 107 and the first corresponding relationship. To this end, this embodiment provides a method for identifying the sheath model of the sheath airbag 107 by inflating the sheath airbag 107. Specifically, when the air pressure in the gas tank 102 is the same, when sheath airbags 107 of different sizes are inflated to the same air pressure, it is obvious that the inflation time required is positively correlated with the size of the sheath model of the sheath airbag 107. Therefore, in this embodiment, the second corresponding relationship can be determined in advance based on this.

[0109] Optionally, the process of determining the second corresponding relationship may include:

[0110] Under the condition that the initial air pressure of the air storage tank is the calibrated air pressure of the air storage tank, air is respectively filled into the sheath airbags of different sheath models until the airbag pressure reaches the calibrated airbag pressure, and the calibrated inflation time corresponding to the airbag pressure of the sheath airbag of each sheath model reaching the calibrated airbag pressure is recorded;

[0111] A second corresponding relationship is created according to the calibrated inflation time corresponding to the sheath airbag of each sheath model.

[0112] In this embodiment, it is predetermined that when the air pressure in the gas tank 102 is the calibration tank air pressure, the sheath airbags 107 of different sheath models are inflated until the air pressure reaches the calibration airbag air pressure, and the duration of the number position is recorded as the calibration inflation duration, and a second corresponding relationship between the sheath model and the calibration inflation duration is created under the same calibration tank air pressure and calibration airbag air pressure. Therefore, in actual application, the sheath model of the sheath airbag 107 can be determined by using the inflation time consumed by the gas tank 102 to inflate the sheath airbag 107 to the calibration airbag pressure after the gas tank 102 is inflated to the calibration tank air pressure and the second corresponding relationship.

[0113] In this embodiment, the sheath model of the sheath airbag 107 is identified by using the time taken to inflate the sheath airbag 107 to the calibrated airbag pressure. Compared with other methods of identifying the sheath model, the sheath model identified in this embodiment is more accurate and reliable.

[0114] Based on any of the above embodiments, the sheath airbags 107 for lower limbs are generally used in pairs, that is, the user wears one sheath airbag 107 on each foot. Accordingly, in an optional embodiment of the present application, when the moment of inflating the sheath airbag 107 is reached, the process of controlling the control valve between the air storage tank 102 and the sheath airbag 107 to open and the opening time is the set time may specifically include:

[0115] When the time for inflating the first sheath airbag 107 in the pair of sheath airbags 107 is reached, the control valve between the gas storage tank 102 and the first sheath airbag 107 is controlled to open and the opening time is set; and when the time for which the air pressure of the first sheath airbag 107 is maintained at the target treatment air pressure reaches the target treatment time, the first sheath airbag 107 is deflated;

[0116] Before the moment of inflating the second sheath airbag 107 of the pair of sheath airbags 107 is reached, the air pump 101 is controlled to inflate the air storage tank 102 to a set tank air pressure;

[0117] When the time for inflating the second sheath airbag 107 is reached, the control valve between the gas storage tank 102 and the second sheath airbag 107 is controlled to open and the opening time is set; and when the air pressure of the second sheath airbag 107 is maintained at the target treatment air pressure for a time period that reaches the target treatment time period, the second sheath airbag 107 is deflated;

[0118] Before the next inflation time of the first sheath airbag 107 is reached, the air pump 101 is controlled to inflate the air tank 102 to a set air pressure in the air tank, so that the two sheath airbags 107 are cyclically and alternately inflated.

[0119] In the present embodiment, during the process of inflating a pair of two sheath airbags 107, the air storage tank 102 is first inflated to the set tank air pressure, and then when the inflation time of the first sheath airbag 107 is reached, the control valve between the air storage tank 102 and the first sheath airbag 107 is controlled to open; when the air pressure in the first sheath airbag 107 reaches the target treatment air pressure, the control valve between the air storage tank 102 and the first sheath airbag 107 is controlled to close; when the time for which the first sheath airbag 107 is maintained at the target treatment air pressure reaches the target treatment time, the first sheath airbag 107 can be deflated using the deflation valve 108.

[0120] In addition, the air pump 101 is controlled again to pressurize and inflate the air tank 102, so that the air pressure of the air tank 102 reaches the set tank pressure again. When the inflation time of the second sheath airbag 107 is reached, the air tank 102 is controlled to inflate the second sheath airbag 107 to the target treatment pressure. Similarly, when the second sheath airbag 107 maintains the target treatment pressure for a target period of time, the corresponding deflation valve 108 can also be used to deflate the second sheath airbag 107. In addition, the air pump 101 re-inflates the air tank 102 to the set tank air pressure, and when the inflation time of the first sheath airbag 107 is reached again, the first sheath airbag 107 is re-inflated, thereby realizing the alternating inflation of the first sheath airbag 107 and the second sheath airbag 107 according to the same process, thereby truly simulating the process of alternating formation of physiological foot pumps at the soles of both feet when the lower limbs of the human body walk normally, thereby improving the therapeutic effect of the pulse air pressure therapy device to a certain extent.

[0121] To summarize, the present application is different from the conventional method of directly inflating the sheath airbag by using an air pump. The air pump is first used to inflate the air tank to a relatively large set tank pressure. When it is necessary to fill the sheath airbag with air flow so that its air pressure reaches the target treatment pressure required for treatment, only the control valve between the air tank and the sheath airbag is opened, thereby utilizing the huge air pressure difference between the air tank and the sheath airbag to achieve rapid inflation of the sheath airbag by the air tank, so that the sheath airbag can apply a relatively large impact pressure to the foot wearing the sheath airbag in a very short time. On the basis of not increasing the equipment cost too much, the present application breaks through the problem of the upper limit of the inflation speed of the sheath airbag by the air pump in a short time, and effectively ensures the therapeutic effect of the pulse air pressure therapy device.

[0122] The air pressure control device of the pulse air pressure therapy device provided in an embodiment of the present invention is introduced below. The air pressure control device of the pulse air pressure therapy device described below and the air pressure control method of the pulse air pressure therapy device described above can be referenced to each other.

[0123] Figure 5 The structural block diagram of the air pressure control device of the pulse air pressure therapy device provided in the embodiment of the present invention is shown in FIG. Figure 5 The air pressure control device of the pulse air pressure therapy device may include:

[0124] The air pressure calculation module 10 is used to determine the set tank air pressure corresponding to the sheath airbag 107 according to the sheath model of the sheath airbag and the first corresponding relationship between the sheath model and the set tank air pressure determined in advance;

[0125] The first inflation module 20 is used to control the air pump to inflate the air storage tank to a set tank air pressure;

[0126] The second inflation module 30 is used to control the control valve between the gas storage tank and the sheath airbag to open and open for a set time when the time to inflate the sheath airbag is reached, so that the sheath airbag is inflated to the target treatment pressure within the set time; wherein the set tank pressure is not less than 3 times the target treatment pressure.

[0127] In an optional embodiment of the present application, it also includes a first creation module, which is used to determine the corresponding initial set tank air pressure according to the sheath model of the current sheath airbag; control the air pump to fill the air tank with air until the air pressure in the air tank reaches the initial set tank air pressure; control the control valve between the air tank and the current sheath airbag to open for a set time; determine whether the airbag pressure of the sheath airbag reaches the target treatment air pressure; if so, use the initial set tank air pressure as the set tank air pressure corresponding to the current sheath airbag; if not, adjust the initial setting The size of the tank air pressure, and re-execute the operation of controlling the air pump to fill the air tank with air until the air pressure in the air tank reaches the initial set tank air pressure; determine whether the set tank air pressures corresponding to the sheath airbags of all sheath models have been determined; if not, replace the sheath airbag of the next sheath model as the new current sheath airbag, and re-execute the operation of determining the corresponding initial set tank air pressure based on the sheath model of the current sheath airbag; if so, create a first correspondence based on the sheath model of each sheath airbag and the corresponding set tank air pressure.

[0128] In an optional embodiment of the present application, it also includes an air pressure correction module, which is used to determine whether the absolute value of the first difference between the current air pressure in the sheath airbag and the target treatment air pressure is greater than the first air pressure threshold when the opening time of the control valve between the control air tank and the sheath airbag reaches a set time; if the current air pressure is less than the target treatment air pressure and the absolute value of the first difference is greater than the first air pressure threshold, air is replenished into the sheath airbag, and the set tank air pressure corresponding to the sheath model of the sheath airbag in the first corresponding relationship is increased by the set air pressure increment; wherein the set air pressure increment is one size larger than the sheath model of the sheath airbag. The set tank air pressure currently corresponding to the sheath model is one-fifth of the air pressure difference between the set tank air pressure corresponding to the sheath model of the sheath airbag; if the current air pressure is greater than the target treatment air pressure and the absolute value of the first difference is greater than the first air pressure threshold, air is deflated into the sheath airbag, and the set tank air pressure corresponding to the sheath model of the sheath airbag in the first corresponding relationship is reduced by the set air pressure reduction; wherein the set air pressure reduction is one-fifth of the air pressure difference between the set tank air pressure currently corresponding to the sheath model of the sheath airbag and the set tank air pressure corresponding to a sheath model that is one size smaller than the sheath model of the sheath airbag.

[0129] In an optional embodiment of the present application, it also includes a pressure stabilization module, which is used to monitor the air pressure data in the sheath airbag in real time after the air pressure in the sheath airbag reaches the target treatment pressure, and determine whether the absolute value of the second difference between the air pressure data and the target treatment pressure is greater than the second pressure threshold; when the air pressure data is greater than the target treatment pressure and the absolute value of the second difference is greater than the second pressure threshold, the sheath airbag is inflated; when the target treatment pressure is less than the air pressure data and the absolute value of the second difference is greater than the second pressure threshold, the sheath airbag is deflated.

[0130] In an optional embodiment of the present application, it also includes a model identification module, which is used to control the air pump to fill the air tank with air until the air pressure in the air tank reaches the calibrated tank air pressure before determining the set tank air pressure corresponding to the sheath airbag; control the control valve between the air tank and the sheath airbag to open, so that the air tank fills the sheath airbag with air, and records the calibrated inflation time when the air pressure in the sheath airbag reaches the calibrated airbag pressure; determine the sheath model corresponding to the current sheath airbag according to the calibrated inflation time and a second corresponding relationship between the predetermined calibrated inflation time and the sheath model.

[0131] In an optional embodiment of the present application, it also includes a second creation module, which is used to control the air storage tank to fill the sheath airbags of different sheath models with air flow until the airbag pressure reaches the calibrated airbag pressure under the condition that the initial air pressure is the calibrated air tank pressure, and record the calibrated inflation time corresponding to the airbag pressure of the sheath airbag of each sheath model to reach the calibrated airbag pressure; and create a second corresponding relationship according to the calibrated inflation time corresponding to the sheath airbag of each sheath model.

[0132] In an optional embodiment of the present application, the second inflation module 30 is specifically used for controlling the control valve between the air storage tank and the first sheath airbag to open and keep the opening time for a set time when the moment of inflating the first sheath airbag in a pair of sheath airbags is reached; and when the air pressure of the first sheath airbag is maintained at the target treatment air pressure for a time that reaches the target treatment time, the first sheath airbag is deflated; before the moment of inflating the second sheath airbag in a pair of sheath airbags is reached, controlling the air pump to inflate the air storage tank to the set tank air pressure; when the moment of inflating the second sheath airbag is reached, controlling the control valve between the air storage tank and the second sheath airbag to open and keep the opening time for a set time; and when the air pressure of the second sheath airbag is maintained at the target treatment air pressure for a time that reaches the target treatment time, the second sheath airbag is deflated; before the moment of the next inflation of the first sheath airbag is reached, controlling the air pump to inflate the air storage tank to the set tank air pressure, so that a pair of two sheath airbags are cyclically inflated alternately.

[0133] The air pressure control device of the pulse air pressure therapy apparatus of the present embodiment is used to implement the air pressure control method of the pulse air pressure therapy apparatus described above. Therefore, the specific implementation method of the air pressure control device of the pulse air pressure therapy apparatus can be seen in the embodiment section of the air pressure control method of the pulse air pressure therapy apparatus in the previous text. The specific implementation method thereof can refer to the description of the corresponding embodiments of each part, which will not be repeated here.

[0134] like Figure 2 As shown, the present application also provides an embodiment of an air pressure control system of a pulse air pressure therapy device, and the air pressure control system may include:

[0135] A controller 100, an air pump 101, an air tank 102 connected to the air pump 101, a sheath air bag 107 detachably connected to the air tank 102; and a control valve disposed between the air tank 102 and the sheath air bag 107;

[0136] The controller 100 is connected to the air pump 101 and the control valve, and is used to control the start and stop of the air pump 101, so as to control the air pump 101 to inflate and stop inflation into the air tank 102, and to control the air tank 102 to start and stop inflating the sheath air bag 107, so as to execute the steps of the air pressure control method of the pulse air pressure therapy device as described in any of the above items.

[0137] It is understandable that the air pump 101, the air tank 102 and the airbag in this embodiment should be connected to each other through an air duct, and the air duct can preferably be a straight duct with a certain rigidity, thereby minimizing the resistance of the airflow in the air duct.

[0138] Optionally, the air pressure control system may further include:

[0139] An air supply pipeline is arranged between the air storage tank 102 and the sheath air bag 107;

[0140] The control valve includes a first control valve 104 disposed between the gas storage tank 102 and the gas supplement pipeline, and a second control valve 106 disposed between the gas supplement pipeline and the sheath airbag 107 .

[0141] It is understandable that the inner diameter of the air supply pipe in this embodiment is larger than that of the air guide pipe, so as to ensure that enough compressed gas can be retained in the air supply pipe when the first control valve 104 and the second control valve 106 are closed.

[0142] As mentioned above, in actual applications, the sheath airbags 107 are generally used in pairs. Therefore, in actual applications, the first control valve 104, the air supply pipeline and the second control valve 106 should be configured in two groups, each group is used to connect a sheath airbag 107 and the output end of the air tank 102.

[0143] It should be noted that, in this article, relational terms such as first and second, etc. are only used to distinguish one entity or operation from another entity or operation, and do not necessarily require or imply that there is any such actual relationship or order between these entities or operations. Moreover, the term "includes", "comprising" or any other variant thereof is intended to cover non-exclusive inclusion, so that the process, method, article or equipment comprising a series of elements are inherent to the elements. In the absence of more restrictions, the elements limited by the sentence "comprising one..." do not exclude the presence of other identical elements in the process, method, article or equipment comprising the elements. In addition, the above-mentioned technical solution provided in the embodiment of the present application is consistent with the corresponding technical solution in the prior art in principle, and the part is not described in detail, so as to avoid too much redundancy.

[0144] The principles and implementation methods of the present invention are described in this article using specific examples. The description of the above embodiments is only used to help understand the method and core ideas of the present invention. It should be pointed out that for ordinary technicians in this technical field, several improvements and modifications can be made to the present invention without departing from the principles of the present invention, and these improvements and modifications also fall within the scope of protection of the claims of the present invention.

Claims

1. A method for controlling air pressure of a pulse air pressure therapeutic apparatus, characterized in that: The pulse air pressure therapeutic device comprises an air pump, an air storage tank and a sheath air bag which are connected in sequence; The air pressure control method comprises: Determine the set tank air pressure corresponding to the sheath airbag according to the sheath model of the sheath airbag and a predetermined first correspondence between the sheath model and the set tank air pressure; Controlling the air pump to inflate the air storage tank to the set air pressure of the air storage tank; When the time comes to inflate the sheath airbag, the control valve between the gas storage tank and the sheath airbag is controlled to open and the opening time is set, so that the sheath airbag is inflated to the target treatment pressure within the set time; wherein the set tank pressure is not less than 3 times the target treatment pressure.

2. The air pressure control method of the pulse air pressure therapy device according to claim 1, characterized in that: The process of predetermining the first corresponding relationship includes: Determine the corresponding initial setting tank air pressure according to the sheath model of the current sheath airbag; Controlling the air pump to fill the air tank with air until the air pressure in the air tank reaches the initially set tank air pressure; Control the control valve between the gas storage tank and the current sheath airbag to open for the set time period; Determining whether the airbag pressure of the sheath airbag reaches the target treatment air pressure; If yes, the initial set tank air pressure is used as the set tank air pressure corresponding to the current sheath airbag; If not, the size of the initially set tank air pressure is adjusted, and the operation of controlling the air pump to fill the tank with air until the air pressure in the tank reaches the initially set tank air pressure is re-executed; Determine whether the set tank air pressure corresponding to the sheath airbags of all sheath models has been determined; If not, replace the sheath airbag of the next sheath model as the new current sheath airbag, and re-execute the operation of determining the corresponding initial setting tank air pressure according to the sheath model of the current sheath airbag; If so, the first corresponding relationship is established according to the sheath model of each sheath airbag and the corresponding set tank air pressure.

3. The air pressure control method of the pulse air pressure therapy device according to claim 1, characterized in that: Also includes: When the opening time of the control valve between the gas storage tank and the sheath airbag reaches the set time, determining whether the absolute value of the first difference between the current air pressure in the sheath airbag and the target treatment air pressure is greater than a first air pressure threshold; If the current air pressure is less than the target treatment air pressure and the absolute value of the first difference is greater than the first air pressure threshold, air is supplemented into the sheath airbag, and the set storage tank air pressure corresponding to the sheath model of the sheath airbag in the first corresponding relationship is increased by a set air pressure increment; wherein the set air pressure increment is one fifth of the air pressure difference between the set storage tank air pressure currently corresponding to a sheath model that is one size larger than the sheath model of the sheath airbag and the set storage tank air pressure corresponding to the sheath model of the sheath airbag; If the current air pressure is greater than the target treatment air pressure and the absolute value of the first difference is greater than the first air pressure threshold, air is deflated into the sheath airbag, and the set tank air pressure corresponding to the sheath model of the sheath airbag in the first corresponding relationship is reduced by the set air pressure reduction; wherein the set air pressure reduction is one-fifth of the air pressure difference between the set tank air pressure currently corresponding to the sheath model of the sheath airbag and the set tank air pressure corresponding to a sheath model that is one size smaller than the sheath model of the sheath airbag.

4. The air pressure control method of the pulse air pressure therapy device according to claim 1, characterized in that: After the air pressure in the sheath balloon reaches the target treatment air pressure, the method further comprises: monitoring the air pressure data in the sheath airbag in real time, and determining whether the absolute value of a second difference between the air pressure data and the target treatment air pressure is greater than a second air pressure threshold; When the air pressure data is greater than the target treatment air pressure and the absolute value of the second difference is greater than the second air pressure threshold, the sheath airbag is inflated; When the target treatment air pressure is less than the air pressure data and the absolute value of the second difference is greater than the second air pressure threshold, the sheath airbag is deflated.

5. The air pressure control method of the pulse air pressure therapy device according to any one of claims 1 to 4, characterized in that: Before determining the set tank air pressure corresponding to the sheath airbag, the method further includes: Controlling the air pump to fill the air tank with air until the air pressure in the air tank reaches the calibrated tank air pressure; Controlling the control valve between the gas storage tank and the sheath airbag to open, so that the gas storage tank fills the sheath airbag with airflow, and recording the calibrated inflation time when the air pressure in the sheath airbag reaches the calibrated airbag pressure; The sheath model corresponding to the current sheath airbag is determined according to the calibrated inflation time and a predetermined second corresponding relationship between the calibrated inflation time and the sheath model.

6. The air pressure control method of the pulse air pressure therapy apparatus according to claim 5, characterized in that: The process of predetermining the second corresponding relationship includes: Control the gas storage tank to fill the sheath airbags of different sheath models with airflow under the condition that the initial air pressure is the calibrated gas storage tank pressure until the airbag pressure reaches the calibrated airbag pressure, and record the calibrated inflation time corresponding to the airbag pressure of the sheath airbag of each sheath model reaching the calibrated airbag pressure; The second corresponding relationship is created according to the calibrated inflation time corresponding to the sheath airbag of each sheath model.

7. The air pressure control method of the pulse air pressure therapy device according to any one of claims 1 to 4, characterized in that: When the time for inflating the sheath airbag is reached, the control valve between the air storage tank and the sheath airbag is controlled to open for a set time, including: When the time for inflating the first sheath airbag in the pair of sheath airbags is reached, the control valve between the gas storage tank and the first sheath airbag is controlled to be opened and the opening time is set; and when the time for which the air pressure of the first sheath airbag is maintained at the target treatment air pressure reaches the target treatment time, the first sheath airbag is deflated; Before the moment of inflating the second sheath airbag in the pair of sheath airbags is reached, controlling the air pump to inflate the air storage tank to the set air pressure of the air storage tank; When the time for inflating the second sheath airbag is reached, the control valve between the air storage tank and the second sheath airbag is controlled to open and the opening time is set; and when the air pressure of the second sheath airbag is maintained at the target treatment air pressure for a period of time that reaches the target treatment time, the second sheath airbag is deflated; Before the time of the next inflation of the first sheath airbag is reached, the air pump is controlled to inflate the air tank to the set air tank pressure, so that the two sheath airbags in a pair are cyclically and alternately inflated.

8. An air pressure control device for a pulse air pressure therapy apparatus, characterized in that: include: An air pressure calculation module, used for determining the set tank air pressure corresponding to the sheath airbag according to the sheath model of the sheath airbag and a predetermined first correspondence between the sheath model and the set tank air pressure; A first inflation module, used for controlling the air pump to inflate the air storage tank to the set air pressure of the air storage tank; The second inflation module is used for controlling the control valve between the gas storage tank and the sheath airbag to open and open for a set time when the time to inflate the sheath airbag is reached, so that the sheath airbag is inflated to the target treatment pressure within the set time; wherein the set tank pressure is not less than 3 times the target treatment pressure.

9. An air pressure control system for a pulse air pressure therapeutic apparatus, characterized in that: It includes a controller, an air pump, an air tank connected to the air pump, and a sheath air bag detachably connected to the air tank; a control valve arranged between the air tank and the sheath air bag; The controller is connected to the air pump and the control valve, and is used to control the start and stop of the air pump, so as to control the air pump to inflate and stop inflation into the air tank, and to control the air tank to start and stop inflating the sheath air bag, so as to execute the steps of the air pressure control method of the pulse air pressure therapy device as described in any one of claims 1 to 7.

10. The air pressure control system of the pulse air pressure therapy apparatus according to claim 9, characterized in that: It also includes an air supply pipeline arranged between the air storage tank and the sheath air bag; The control valve includes a first control valve arranged between the gas storage tank and the gas supplement pipeline, and a second control valve arranged between the gas supplement pipeline and the sheath airbag.

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