Hemostat control method and system adaptive to compression area and hemostat

Abstract

The invention relates to the technical field of hemostat control, and provides a hemostat control method and system adaptive to a compression area and a hemostat, and the method comprises the steps: obtaining pressure data of two hemostats during compression at a wound, recognizing a hemostat air bag corresponding to the position of the wound, and then sending a compression instruction, the inflating state of the air bag of the hemostat is adjusted, only the air bag associated with wound hemostasis is inflated and compressed, other air bags are deflated, wound blood vessels can be stopped accurately and intelligently without manual control, compression on intact blood vessels is avoided on the premise that the hemostasis effect of the hemostat is guaranteed, and the hemostasis efficiency is improved. Nerve injury and muscle avascular necrosis caused by hemostasis are avoided, and the risk of secondary injury to a patient is reduced.

Description

TECHNICAL FIELD

[0001] The present application relates to the technical field of tourniquet control, and in particular to a tourniquet control method and system for adaptive compression area. BACKGROUND

[0002] A common tourniquet will compress the entire limb circumference and cannot selectively target the bleeding point. After compression and blockage of blood flow, muscle tissue begins to ischemia within 30 minutes, and irreversible necrosis may occur after more than 2 hours, releasing a large amount of myoglobin and causing osteofascial compartment syndrome, which can easily cause damage to non-target areas such as nerves and muscle tissue. For reference, patent CN209032502U, after the tourniquet is installed, the knob is adjusted to tighten, which will block the blood vessels on the entire limb circumference. Although it is convenient and fast, it will affect the blood flow of non-damaged blood vessels and muscle tissue activity. For reference, patent CN101926666B can be used for radial artery hemostasis to avoid affecting the blood flow of other blood vessels such as ulnar artery. However, this patent requires professional medical personnel to use it in a surgical scenario, and the pressure block in the tourniquet must be accurately placed above the radial artery to achieve local and accurate hemostasis. However, in non-surgical application scenarios, the user of the tourniquet is not a professional and cannot identify the types of blood vessels, and it is more difficult to determine the distal or proximal end of the blood vessel when the patient is injured, so it is difficult to select the placement position of the tourniquet for hemostasis, affecting the hemostasis efficiency. Therefore, the existing tourniquet has the problems of inaccurate hemostasis position and the need for professional operation, and low hemostasis efficiency. SUMMARY

[0003] The present application provides a tourniquet control method for adaptive compression area, which solves the problem of low hemostasis efficiency of the existing tourniquet.

[0004] The first aspect of the present application provides a tourniquet control method for adaptive compression area, comprising: Obtain tourniquet position data and establish a correspondence between each gas bag of the first tourniquet and each gas bag of the second tourniquet; send a first compression instruction and obtain blood pressure detection data of the tourniquet to obtain first tourniquet pressure data and second tourniquet pressure data; According to the first tourniquet pressure data and the second tourniquet pressure data, identify the gas bag with abnormal pressure change, and identify the associated gas bag of the abnormal gas bag according to the correspondence; Generate a second compression instruction, which includes abnormal gas bag deflation and irrelevant gas bag deflation.

[0005] Optionally, the second compression instruction includes abnormal gas bag deflation and irrelevant gas bag deflation, specifically: The number of irrelevant air bags, abnormal air bags and associated air bags on the same tourniquet is identified, a correction relationship of inflation speed is generated according to the ratio of the number of deflated air bags to the number of inflated air bags on the same tourniquet, and the preset inflation speed is corrected according to the correction relationship of inflation speed to generate a second compression instruction, wherein the second compression instruction comprises deflation of the irrelevant air bags and the abnormal air bags at a preset deflation speed and inflation of the associated air bags at the corrected inflation speed.

[0006] Optionally, the position data of the tourniquet is acquired, and a corresponding relationship between each air bag of the first tourniquet and each air bag of the second tourniquet is established, specifically as follows: The first level data and the second level data are acquired respectively, the inclination angles of the air bags of the tourniquets are calculated according to the level data, the air bags belonging to the same inclination angle in the first tourniquet and the second tourniquet are identified, and the corresponding relationship of the air bags of the tourniquets is established.

[0007] The second aspect of the present application provides a tourniquet control system for adaptive compression region, comprising: A pressure data acquisition module is configured to acquire the position data of the tourniquet, establish a corresponding relationship between each air bag of the first tourniquet and each air bag of the second tourniquet, send a first compression instruction, and acquire blood pressure detection data of the tourniquet to obtain the first tourniquet pressure data and the second tourniquet pressure data. An air bag identification module is configured to identify air bags with abnormal pressure changes according to the first tourniquet pressure data and the second tourniquet pressure data, and identify the associated air bags of the abnormal air bags according to the corresponding relationship. A tourniquet control module is configured to generate a second compression instruction, wherein the second compression instruction comprises deflation of the abnormal air bags and the irrelevant air bags.

[0008] Optionally, in the tourniquet control module, the second compression instruction is generated, and the second compression instruction comprises deflation of the abnormal air bags and the irrelevant air bags, specifically as follows: The number of irrelevant air bags, abnormal air bags and associated air bags on the same tourniquet is identified, a correction relationship of inflation speed is generated according to the ratio of the number of deflated air bags to the number of inflated air bags on the same tourniquet, and the preset inflation speed is corrected according to the correction relationship of inflation speed to generate a second compression instruction, wherein the second compression instruction comprises deflation of the irrelevant air bags and the abnormal air bags at a preset deflation speed and inflation of the associated air bags at the corrected inflation speed.

[0009] Optionally, in the pressure data acquisition module, the position data of the tourniquet is acquired, and a corresponding relationship between each air bag of the first tourniquet and each air bag of the second tourniquet is established, specifically as follows: Obtain first and second level data respectively, calculate the inclination angle of each tourniquet air bag according to the level data, identify the air bags belonging to the same inclination angle in the first and second tourniquets, and establish the tourniquet air bag correspondence.

[0010] The third aspect of the present application provides a tourniquet, characterized in that comprising: The elastic belt is a double-layer belt structure. A plurality of air bags are arranged in the surrounding direction in the elastic belt interlayer, and each air bag is connected to an electric air charging and discharging pump. The connecting device is arranged at both ends of the elastic belt in the surrounding direction.

[0011] Optionally, the elastic belt 1 interlayer is further provided with a pressure sensor. The tourniquet is further provided with a processor, which is in communication connection with the pressure sensor and the electric air charging and discharging pump, receives the pressure sensor signal, and sends a control instruction to the electric air charging and discharging pump, for executing the control method of the self-adaptive compression area tourniquet according to any one of the first aspect.

[0012] From the above technical solution, the present application has the following advantages: by obtaining the pressure data of the two tourniquets when compressing the wound, identifying the tourniquet air bag corresponding to the wound position, and then issuing a compression instruction, the air pressure of the tourniquet air bag is adjusted, only the associated air bag for hemostasis of the wound is inflated and compressed, and the other air bags are deflated, without manual control, the wound blood vessels can be accurately hemostatic, under the premise of ensuring the hemostatic effect of the tourniquet, the intact blood vessels are avoided to be compressed, the nerve damage and muscle ischemic necrosis caused by hemostasis are avoided, and the risk of secondary injury of the patient is reduced. BRIEF DESCRIPTION OF DRAWINGS

[0013] In order to more clearly illustrate the technical solutions in the embodiments of the present application or the prior art, the following will briefly introduce the drawings needed to be used in the embodiment or prior art description. Obviously, the drawings in the following description are only some embodiments of the present application, and those skilled in the art can obtain other drawings according to these drawings without creative labor.

[0014] Figure 1 It is a flow chart of a self-adaptive compression area tourniquet control method. Figure 2 It is a structure diagram of a self-adaptive compression area tourniquet control system. Figure 3 It is a structure diagram of a self-adaptive compression area tourniquet control system. DETAILED DESCRIPTION

[0015] In order to make the application purposes, features and advantages of the present application more obvious and easy to understand, the technical solutions in the embodiments of the present application will be clearly and completely described below with reference to the drawings in the embodiments of the present application. Obviously, the embodiments described below are only part of the embodiments of the present application, rather than all the embodiments. Based on the embodiments in the present application, all other embodiments obtained by those skilled in the art without creative work fall within the scope of protection of the present application.

[0016] The present application provides a self-adaptive compression area hemostat control method to solve the problem of low hemostatic efficiency of the prior art.

[0017] Please refer to Figure 1 , Figure 1 The first flowchart of the self-adaptive compression area hemostat control method provided in the embodiments of the present application.

[0018] S100, obtaining hemostat position data and establishing a corresponding relationship between each air bag of the first hemostat and each air bag of the second hemostat; sending a first compression instruction and obtaining blood pressure detection data of the hemostat to obtain first hemostat pressure data and second hemostat pressure data; It should be noted that the air bag type hemostat in the present embodiment is composed of multiple air bags, which are respectively arranged to cover a fan-shaped ring area, and the air bags are inflated and expanded to compress the area to achieve blood flow blockage; in the present embodiment, two air bag type hemostats need to be arranged around the patient's limbs and on both sides of the wound, and position sensors are arranged on the two hemostats to detect the position of the ring-shaped hemostat relative to the limb, and the blood vessels extend along the direction of the human limb, so that the air bags covering the same blood vessel area can be identified according to the relative position between the two hemostats, and then the corresponding relationship between the air bags of the first hemostat and the air bags of the second hemostat is established, that is, the air bags with the corresponding relationship block the same blood vessels when inflated and compressed to stop bleeding of the limb. The level meter can be detected to be stationary for a predetermined time, or the hemostat installer can touch the hemostat switch to determine that it has been fixed, and when the first hemostat and the second hemostat are fixed on the patient's limb, a first compression instruction can be sent to the inflation valve to uniformly inflate each air bag of the two hemostats, and the blood pressure detection data of each air bag of the hemostat is obtained in real time by the pressure sensor in the same way as the electronic sphygmomanometer during the inflation process, and the first hemostat pressure data and the second hemostat pressure data are obtained based on the inflation process of each air bag, and each air bag in each hemostat has corresponding pressure data; after the hemostat executes the first compression instruction, the hemostasis of the patient's limb wound can be preliminarily completed after the inflation of the air bag is completed.

[0019] S200, identifying the abnormal air bag of pressure change according to the first tourniquet pressure data and the second tourniquet pressure data, and identifying the associated air bag of the abnormal air bag according to the corresponding relationship; It should be noted that the first tourniquet pressure data and the second tourniquet pressure data are data detected for the blood vessel wall pressure in the process of gradually increasing the inflation compression force of the air bag; in the process of tourniquet compression hemostasis, it is necessary to meet the compression force greater than the blood vessel pressure to achieve hemostasis, and when the sum of the pressures of the air bags corresponding to the first tourniquet and the second tourniquet is greater than the blood vessel pressure, the effect achieved is to exert a compression force greater than the blood vessel pressure on the same blood vessel; Although the effect of local compression is better than that of superimposed compression in blood vessel hemostasis, but when the distance between two corresponding air bags is not far and the pressure is sufficient, hemostasis can also be achieved; in the process of inflating each air bag of the tourniquet, for the blood vessel of the non-invasive wound, when the blood vessel is subjected to the compression force of the first air bag passed first in the direction of blood flow, the blood vessel pressure minus the compression force of the first air bag can be considered as approximately the blood vessel pressure continuously flowing to the second air bag passed next; therefore, in the inflation process of the two air bags covering the non-invasive wound blood vessel at the inflation position, it is detected that the blood vessel pressure gradually increases with the inflation process, and then the first air bag detection pressure continues to increase, but the second air bag detection pressure gradually decreases, until the first air bag detection pressure no longer increases, the second air bag detection pressure is 0, and the sum of the first and second air bag detection pressure values at the moment when the second air bag detection pressure starts to decrease should be approximately equal to the pressure value detected by the first air bag that no longer increases, and reflects that the first air bag is the air bag passed first in the direction of blood flow of the blood vessel, i.e. the proximal end in the artery and the distal end in the vein; for the blood vessel with the invasive wound, in the inflation process of the first air bag and the second air bag, because of the existence of the invasive wound bleeding pressure relief, the pressure detected by the second air bag fluctuates unstably or the pressure is continuously small, which is less than the preset pressure threshold, although hemostasis can also be achieved after the inflation compression force of the first air bag is sufficient, but because the blood will flow out and relieve pressure between the first air bag and the second air bag in the inflation process, the pressure value detected by the first air bag after hemostasis will be higher than the sum of the first and second air bag detection pressure values, therefore, according to the pressure change detected by the air bags corresponding to each other, it can be judged that there is a wound between the blood vessels of the two air bags, and the corresponding air bag of the abnormal pressure data air bag is identified as the associated air bag, i.e. the upstream air bag of the wound blood vessel, and the inflation compression of the associated air bag to the blood vessel can achieve hemostasis.

[0020] S300, generating a second compression instruction, the second compression instruction comprising air bag deflation and irrelevant air bag deflation.

[0021] It should be noted that in the pressure data analysis of the foregoing step, the abnormal air bag corresponding to the wound blood vessel and the associated air bag are identified, the abnormal air bag is the air bag after the wound in the direction of blood flow of the wound blood vessel, and the associated air bag is the air bag before the wound in the direction of blood flow of the wound blood vessel, so it is only necessary to ensure that the associated air bag is inflated to provide sufficient compression force to achieve hemostasis of the wound blood vessel, and the abnormal air bag can be deflated to reduce pressure, and the other irrelevant air bags correspond to non-wound blood vessels, and do not need to be compressed to stop flow, and the irrelevant air bags can be deflated to avoid compression of normal blood vessels to cause nerve damage or muscle necrosis; the second compression instruction is to control the deflation of the abnormal air bag and the irrelevant air bag, and to further inflate the associated air bag, so as to avoid the deflation of the irrelevant air bag on the same tourniquet affecting the compression effect of the associated air bag, and causing bleeding at the wound. Further, if the patient's limbs have multiple wounds, there may be multiple associated air bags that need to be inflated to stop bleeding, and if the inflated associated air bags are on the same tourniquet, a prompt signal such as a buzzer prompt can be issued to allow the tourniquet wearer to remove the tourniquet without an inflated air bag, thereby improving the use efficiency.

[0022] In the embodiment, by acquiring the pressure data of the two tourniquets when compressing at the wound, the tourniquet air bags corresponding to the wound position are identified, and the compression instruction is further issued to adjust the inflation state of the tourniquet air bags, only the associated air bag for wound hemostasis is inflated and compressed, and the other air bags are deflated, so that the wound blood vessel can be accurately hemostatic without manual control. Under the premise of ensuring the hemostatic effect of the tourniquet, the intact blood vessels are avoided to be compressed, the nerve damage and muscle ischemic necrosis caused by hemostasis are avoided, and the risk of secondary injury of the patient is reduced.

[0023] The foregoing is a detailed description of a first embodiment of a tourniquet control method provided by the present application, and the following is a detailed description of a second embodiment of a tourniquet control method provided by the present application.

[0024] In the embodiment, a tourniquet control method for adaptive compression area is further provided, in the foregoing step S300, the second compression instruction is generated, and the second compression instruction includes deflation of the abnormal air bag and the irrelevant air bag, specifically: The number of irrelevant air bags, abnormal air bags and associated air bags on the same tourniquet is identified, a inflation speed correction relationship is generated according to the ratio of the number of deflated air bags to the number of inflated air bags on the same tourniquet, the preset inflation speed is corrected according to the inflation speed correction relationship, and the second compression instruction is generated, the second compression instruction includes deflation of the irrelevant air bag and the abnormal air bag at a preset deflation speed, and inflation of the associated air bag at a corrected inflation speed; It should be noted that in the embodiment, a plurality of air bags are arranged under the annular tourniquet, and the volume of the air bag supporting the tourniquet is a direct factor for forming compression hemostasis. Therefore, the compression effect of the individual air bag of the annular tourniquet will be affected by the whole, and it is necessary to ensure that the hemostasis effect is continuous and stable after the execution of the first compression instruction in the foregoing step S100, and the wound cannot be secondarily bled during the execution of the second compression instruction. When the air bags are deflated in the foregoing step S300, the associated air bag needs to be further inflated to more effectively ensure compression hemostasis. The number of irrelevant air bags, abnormal air bags and associated air bags on the same tourniquet is identified, wherein the deflation speed of the irrelevant air bags and the abnormal air bags is constant and predetermined, and the deflation speed is related to the decrease of the volume of the tourniquet supporting the tourniquet. The inflation speed is related to the increase of the volume of the tourniquet supporting the tourniquet. For example, the deflation speed of the electric pump controlled electromagnetic valve is 2-5 L / min. Although the inflation speed of the electric pump can reach 10-20 L / min in the first compression instruction, in order to balance the inflation and deflation volume, the air bag volume and the elasticity have an upper limit, and the tourniquet has an elastic belt part to provide pressure, the preset inflation speed should be set to 0.1-0.25 L / min in the execution of the second compression instruction. The greater the ratio of the number of deflated air bags to the number of inflated air bags, for example, there are 7 irrelevant air bags and abnormal air bags among the total 8 air bags on the same tourniquet, and only 1 is an associated air bag. Due to the decrease of the volume of the deflated air bag, the overall contraction effect of the tourniquet changes, and the inflation air bag may not be able to guarantee the compression hemostasis effect at the preset inflation speed. Therefore, the ratio of the number of deflated air bags to the number of inflated air bags is used as a correction relationship for the inflation speed, and the original inflation speed is corrected, and the inflation speed is amplified by 7:1. After the inflation speed is corrected, the irrelevant air bags and the abnormal air bags that need to be deflated are marked, the associated air bags that need to be inflated are marked, the inflation and deflation adjustment data of the corresponding inflation valve are set, and the second compression instruction is generated.

[0025] Further, in the foregoing step S100, the tourniquet position data is obtained, and the corresponding relationship between each air bag of the first tourniquet and each air bag of the second tourniquet is established, specifically: The first level data and the second level data are obtained respectively, the inclination angle of each tourniquet air bag is calculated according to the level data, the air bags belonging to the same inclination angle in the first tourniquet and the second tourniquet are identified, and the corresponding relationship of the tourniquet air bags is established. It should be noted that the tourniquet of the embodiment is provided with a mark pattern to make the tourniquet wearer align the first tourniquet with the second tourniquet as much as possible, but there are still cases of no alignment in the use scene, so the air bags on the tourniquet need to be correspondingly associated; a level is arranged at a certain air bag position on the tourniquet, and each air bag can stop bleeding after being inflated, that is, the air bag can be regarded as corresponding to a plane, and the plane has a corresponding inclination angle, when there are six air bags on the tourniquet, the angle difference between each plane can be regarded as 60°, the level can measure 360°, and when the level arranged at a certain air bag detects the inclination angle, the inclination angles corresponding to other air bags can be calculated, and in the use scene of the tourniquet, the patient is generally in a lying posture with the limbs placed horizontally, so the inclination angles corresponding to the air bags on the tourniquet are different; the inclination angles close to each other are regarded as belonging to the same inclination angle, the air bags on the two tourniquets are regarded as being related to the compression of the same blood vessel, and the corresponding relationship is constructed. Further, the tourniquet can also be provided with a display interface, or be in wireless communication with a display device, to provide a visual interface to display the pressure curve and the hemostasis state.

[0026] The above is a detailed description of the control method of the tourniquet for adaptively compressing a region according to the first aspect of the present application, and the following is a detailed description of an embodiment of the control system of the tourniquet for adaptively compressing a region according to the second aspect of the present application.

[0027] Please refer to Figure 2 , Figure 2 is a structural diagram of a tourniquet control system for adaptively compressing a region. The embodiment provides a tourniquet control system for adaptively compressing a region, which comprises: A pressure data acquisition module 10 is configured to acquire tourniquet position data, establish a corresponding relationship between each air bag of the first tourniquet and each air bag of the second tourniquet, send a first compression instruction, and acquire blood pressure detection data of the tourniquet to obtain first tourniquet pressure data and second tourniquet pressure data; An air bag identification module 20 is configured to identify air bags with abnormal pressure changes according to the first tourniquet pressure data and the second tourniquet pressure data, and identify associated air bags of the abnormal air bags according to the corresponding relationship; A tourniquet control module 30 is configured to generate a second compression instruction, wherein the second compression instruction comprises air bag deflation of the abnormal air bags and air bag deflation of the irrelevant air bags.

[0028] Further, in the tourniquet control module 30, the second compression instruction is generated, the second compression instruction comprises air bag deflation of the abnormal air bags and air bag deflation of the irrelevant air bags, and specifically: The irrelevant air bags, the abnormal air bags and the associated air bag number on the same tourniquet are identified, a charging speed correction relationship is generated according to the ratio of the number of deflated air bags to the number of inflated air bags on the same tourniquet, and the preset charging speed is corrected according to the charging speed correction relationship to generate a second compression instruction, wherein the second compression instruction includes that the irrelevant air bags and the abnormal air bags deflate at a preset deflation speed, and the associated air bags inflate at the corrected charging speed.

[0029] Further, in the pressure data acquisition module 10, the position data of the tourniquet is acquired, and the corresponding relationship between each air bag of the first tourniquet and each air bag of the second tourniquet is established, specifically: The first level data and the second level data are acquired respectively, the inclination angle of each air bag of the tourniquet is calculated according to the level data, the air bags belonging to the same inclination angle in the first tourniquet and the second tourniquet are identified, and the corresponding relationship of the air bags of the tourniquet is established.

[0030] The third aspect of the application also provides a tourniquet, please see Figure 3 , Figure 3 It is a structural schematic diagram of a tourniquet, and the tourniquet provided in the embodiment comprises: The elastic belt 1 is a double-layer belt structure; A plurality of air bags 2 are arranged in the surrounding direction in the interlayer of the double-layer belt structure of the elastic belt 1, and each air bag 2 is connected to the electric charging and discharging pump; The connecting device 3 is arranged at the two ends of the elastic belt 1 in the surrounding direction.

[0031] It should be noted that there is an interlayer between the double-layer belt structure of the elastic belt 1, and a plurality of air bags 2 are arranged in the surrounding direction in the interlayer, when the air bags 2 are inflated by the connected electric charging and discharging pump, the elastic belt 1 will be lifted, and the patient's limbs under the elastic belt 1 will be compressed, so as to achieve hemostasis, Figure 3 The electric charging and discharging pump is not shown in the figure; the tourniquet needs to be wrapped around the wound, and then the two ends of the elastic belt 1 are connected by the connecting device 3 to realize preliminary positioning by the elasticity of the belt itself, and the connecting device 3 can be a buckle structure or a bolt structure; Further, the pressure sensor is further arranged in the interlayer of the elastic belt 1; The tourniquet further comprises a processor, which is in communication connection with the pressure sensor and the electric charging and discharging pump respectively, receives the pressure sensor signal, and sends a control instruction to the electric charging and discharging pump for executing the tourniquet control method of self-adaptive compression area in the foregoing embodiment.

[0032] It should be noted that the pressure sensor is arranged inside the elastic belt, when the air bag is inflated by the first compression instruction, the pressure sensor detects the blood pressure value and sends it to the processor; the processor executes the hemostat control method of adaptive compression zone in the foregoing embodiment according to the received blood pressure value signal, identifies the abnormal air bag and the associated air bag, and generates the second compression instruction and sends it to the electric charge and exhaust pump.

[0033] Further, the hemostat is also provided with a level, and the processors between the hemostats can also communicate with each other to transmit the level data.

[0034] The fourth aspect of the application provides a computer readable storage medium, characterized in that the computer readable storage medium is used to store program code, and the program code is used to execute the above-mentioned hemostat control method of adaptive compression zone.

[0035] Those skilled in the art can clearly understand that, for the convenience and brevity of description, the specific working process of the above-mentioned device and equipment can refer to the corresponding process in the foregoing method embodiment, which will not be repeated here.

[0036] In the several embodiments provided in the present application, it should be understood that the disclosed system, device and method can be implemented by other ways. For example, the device embodiments described above are only schematic, and for example, the division of the units is only a logical function division, and there can be another division way in actual implementation, for example, multiple units or components can be combined or integrated into another system, or some features can be ignored or not executed. In addition, the coupling or direct coupling or communication connection between the units shown or discussed can be indirect coupling or communication connection through some interface, device or unit, and can be electrical, mechanical or other forms.

[0037] The units described as separate components can or can not be physically separate, and the components shown as units can or can not be physical units, that is, they can be located in one place, or can be distributed on multiple network units. Part or all of the units can be selected according to actual needs to achieve the purpose of the embodiment scheme.

[0038] In addition, each functional unit in each embodiment of the present application can be integrated in one processing unit, or each unit can exist physically, or two or more units can be integrated in one unit. The integrated unit can be realized in the form of hardware or in the form of software functional unit.

[0039] The integrated unit, if implemented in the form of a software function unit and sold or used as an independent product, can be stored in a computer readable storage medium. Based on such understanding, the technical solutions of the present application or the entire or part of the technical solutions that essentially contribute to the prior art can be embodied in the form of a software product. The computer software product is stored in a storage medium, and includes a plurality of instructions for causing a computer device (which can be a personal computer, a server, or a network device, etc.) to execute all or part of the steps of the method described in the various embodiments of the present application. The aforementioned storage medium includes: a U disk, a mobile hard disk, a read-only memory (ROM, Read-Only Memory), a random access memory (RAM, Random Access Memory), a magnetic disk or an optical disk, and various media that can store program codes.

[0040] The above-described embodiments are only used to illustrate the technical solutions of the present application, rather than limit them; although the present application has been described in detail with reference to the foregoing embodiments, those skilled in the art should understand that they can still modify the technical solutions recorded in the foregoing embodiments, or make equivalent replacements for some technical features; and these modifications or replacements do not make the corresponding technical solutions deviate from the spirit and scope of the technical solutions of the embodiments of the present application.

Claims

1. A method of controlling a tourniquet that self-adapts to a compression area, characterized by The method comprises the following steps: acquire the position data of the tourniquet, and establish the corresponding relationship between each air bag of the first tourniquet and each air bag of the second tourniquet; send the first compression instruction, and acquire the blood pressure detection data of the tourniquet to obtain the first tourniquet pressure data and the second tourniquet pressure data; identify the air bag with abnormal pressure change according to the first tourniquet pressure data and the second tourniquet pressure data, and identify the associated air bag of the abnormal air bag according to the corresponding relationship; generate the second compression instruction, wherein the second compression instruction comprises air deflation of the abnormal air bag and the irrelevant air bag.

2. The control method of a tourniquet according to claim 1, wherein The second compression instruction comprises air deflation of the abnormal air bag and the irrelevant air bag, specifically: identify the number of irrelevant air bags, abnormal air bags and associated air bags on the same tourniquet, generate an inflation speed correction relationship according to the proportion of the number of deflated air bags to the number of inflated air bags on the same tourniquet, and generate the second compression instruction after correcting the preset inflation speed according to the inflation speed correction relationship, wherein the second compression instruction comprises deflation of the irrelevant air bag and the abnormal air bag at a preset deflation speed, and inflation of the associated air bag at the corrected inflation speed.

3. The control method of a tourniquet according to claim 1, wherein, The acquisition of the position data of the tourniquet and the establishment of the corresponding relationship between each air bag of the first tourniquet and each air bag of the second tourniquet are specifically as follows: respectively acquire the first level data and the second level data, calculate the inclination angle of each tourniquet air bag according to the level data, identify the air bags belonging to the same inclination angle in the first tourniquet and the second tourniquet, and establish the corresponding relationship of the tourniquet air bags.

4. A tourniquet control system that self-adapts to a compression area, characterized by, The method comprises the following steps: a pressure data acquisition module for acquiring the position data of the tourniquet, and establishing the corresponding relationship between each air bag of the first tourniquet and each air bag of the second tourniquet; send the first compression instruction, and acquire the blood pressure detection data of the tourniquet to obtain the first tourniquet pressure data and the second tourniquet pressure data; an air bag identification module for identifying the air bag with abnormal pressure change according to the first tourniquet pressure data and the second tourniquet pressure data, and identifying the associated air bag of the abnormal air bag according to the corresponding relationship; a tourniquet control module for generating the second compression instruction, wherein the second compression instruction comprises air deflation of the abnormal air bag and the irrelevant air bag.

5. A tourniquet control system that self-adapts the compression area according to claim 4, wherein, The tourniquet control module generates the second compression instruction, wherein the second compression instruction comprises air deflation of the abnormal air bag and the irrelevant air bag, specifically: identify the number of irrelevant air bags, abnormal air bags and associated air bags on the same tourniquet, generate an inflation speed correction relationship according to the proportion of the number of deflated air bags to the number of inflated air bags on the same tourniquet, and generate the second compression instruction after correcting the preset inflation speed according to the inflation speed correction relationship, wherein the second compression instruction comprises deflation of the irrelevant air bag and the abnormal air bag at a preset deflation speed, and inflation of the associated air bag at the corrected inflation speed.

6. A tourniquet control system that self-adapts the compression area according to claim 4, wherein, The pressure data acquisition module acquires the position data of the tourniquet and establishes the corresponding relationship between each air bag of the first tourniquet and each air bag of the second tourniquet, specifically as follows: respectively acquire the first level data and the second level data, calculate the inclination angle of each tourniquet air bag according to the level data, identify the air bags belonging to the same inclination angle in the first tourniquet and the second tourniquet, and establish the corresponding relationship of the tourniquet air bags.

7. A tourniquet characterized by, The method comprises the following steps: The elastic belt is a double-layer belt structure; A plurality of air bags are arranged in a surrounding direction inside the elastic belt interlayer, and each air bag is connected to an electric charging and exhausting pump; A connecting device is arranged at both ends of the elastic belt in the surrounding direction.

8. A tourniquet according to claim 7, wherein, The elastic belt 1 interlayer is further provided with a pressure sensor; The tourniquet is further provided with a processor in communication with the pressure sensor and the electric charging and exhausting pump, receives the pressure sensor signal, and sends a control instruction to the electric charging and exhausting pump, so as to execute the control method of the self-adaptive compression area tourniquet according to any one of the preceding claims 1-3.

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