A pressurized blood flow restriction band

Abstract

This utility model discloses a pressure-restricting band, comprising an ergonomic plate with a non-closed annular curved cylindrical structure; an inflatable airbag fitted to the inner annular surface of the ergonomic plate; an inflation pump connected to the inflation port of the airbag; a control component connected to the inflation pump for controlling its start-up and shutdown; a strip-shaped cuff comprising an inner cuff and an outer cuff, the inner cuff fitting to the surface of the airbag opposite to the ergonomic plate and extending through a notch in the non-closed annular structure of the ergonomic plate; the outer cuff being wound in at least one layer along the outer annular surface of the ergonomic plate; a thin-film pressure sensor disposed on the surface of the inner cuff opposite to the ergonomic plate; and the thin-film pressure sensor and the control component being communicatively connected. The pressure-restricting band of this application incorporates a non-closed annular ergonomic plate, reducing the difficulty of wearing and securing the band and improving its performance.

Description

Technical Field

[0001] This utility model relates to the fields of physical function training and first aid, and in particular to a pressure blood flow restriction band. Background Technology

[0002] A pressure flow restriction band, also known as a flow training band or compression training band, is, as the name suggests, used to apply pressure to the limbs to restrict blood flow to a certain extent. Pressure flow restriction bands can be used for blood flow restriction (BFR) training; BFR training is a training method that stimulates muscle growth and improves muscle function at a lower intensity under conditions of pressure restriction or short-term intermittent venous blood flow occlusion. Pressure flow restriction training combined with low-intensity training can effectively prevent muscle atrophy during the injury period, promote muscle tissue healing, improve muscle anabolic metabolism, and increase muscle strength and endurance.

[0003] Furthermore, in the medical field, crush injuries are traumas caused by sustained pressure from a large external force on the body. Severe local and systemic damage often occurs after the patient is rescued and the pressure is relieved. Uncontrolled reperfusion of blood to the compressed limb can lead to rapid swelling and necrosis. Additionally, the cellular contents released from ruptured skeletal muscle due to external compression (such as potassium and myoglobin) rapidly enter the circulatory system, attacking vital organs such as the heart and kidneys, inducing fatal arrhythmias or kidney failure—the so-called crush syndrome. Therefore, pressure-restricting bandages can also be used as portable medical tourniquets.

[0004] Traditional pressure flow restriction bands are elastic bands that can be wrapped around the muscles of the upper or lower limbs. With the development and upgrading of pressure flow restriction bands, bands equipped with airbags and pumps have gradually appeared on the market, allowing for flexible adjustment of pressure. However, whether traditional or upgraded, most training bands use a band-like structure to be fixed to the upper or lower limbs, which makes wearing the band, especially with one hand, extremely inconvenient. Utility Model Content

[0005] The purpose of this invention is to provide a pressure blood flow restriction belt that simplifies the wearing process and improves the ease of use.

[0006] To solve the above-mentioned technical problems, this utility model provides a pressurized blood flow restriction band, including an ergonomic plate with a non-closed annular curved cylindrical surface structure; an inflatable airbag attached to the inner annular surface of the ergonomic plate; an inflation pump connected to the inflation port of the airbag; a control component connected to the inflation pump for controlling the start and stop of the inflation pump; a strip-shaped cuff including an inner cuff and an outer cuff, the inner cuff being attached to the surface of the airbag opposite to the ergonomic plate and extending through a non-closed annular notch in the ergonomic plate to the outside of the ergonomic plate; the outer cuff being wound in at least one layer along the outer annular surface of the ergonomic plate; a thin-film pressure sensor disposed on the surface of the inner cuff opposite to the ergonomic plate; the thin-film pressure sensor and the control component being communicatively connected.

[0007] In one alternative embodiment of this application, the ergonomic plate is an elastic plate with an adjustable inner diameter.

[0008] In one alternative embodiment of this application, the ergonomic board is a PP plastic board or a metal board.

[0009] In one alternative embodiment of this application, the ergonomic board is a hollowed-out curved panel.

[0010] In an optional embodiment of this application, a first magnetic patch is provided on the inner ring surface of the ergonomic board, and a second magnetic patch is provided on the surface of the inflatable airbag that is attached to the ergonomic board; the first magnetic patch and the second magnetic patch have opposite magnetic properties.

[0011] In one optional embodiment of this application, the airbag layer on the side of the inflatable airbag facing away from the ergonomic board and the inner lining of the strip-shaped cuff are integrally formed.

[0012] In one optional embodiment of this application, a heating resistance wire is provided in the inner cuff;

[0013] The inner lining sleeve has a plug assembly that is electrically connected to the heating resistance wire on its side.

[0014] The control component is connected to a socket component for plugging and unplugging with the plug component.

[0015] In one alternative embodiment of this application, the strip-shaped cuff is a flexible fiber fabric cuff.

[0016] In one optional embodiment of this application, an inflation through hole is provided on the side of the ergonomic board opposite to the notch / gap; the inflation port of the inflatable airbag is disposed through the inflation through hole.

[0017] In an optional embodiment of this application, the side of the ergonomic board opposite to the inflatable airbag is further provided with a snap-fit ​​structure for connecting the housing of the control component;

[0018] The thin-film pressure sensor and the control component are connected by wireless communication.

[0019] This utility model provides a pressurized blood flow restriction band, comprising an ergonomic plate with a non-closed annular curved cylindrical structure; an inflatable airbag fitted to the inner annular surface of the ergonomic plate; an inflation pump connected to the inflation port of the airbag; a control component connected to the inflation pump for controlling the start and stop of the inflation pump; a strip-shaped cuff including an inner cuff and an outer cuff, the inner cuff being fitted to the surface of the airbag opposite to the ergonomic plate and extending through a non-closed annular notch in the ergonomic plate to the outside of the ergonomic plate; the outer cuff being wound in at least one layer along the outer annular surface of the ergonomic plate; a thin-film pressure sensor disposed on the surface of the inner cuff opposite to the ergonomic plate; and the thin-film pressure sensor and the control component being communicatively connected.

[0020] In addition to the inflatable blood flow restrictor, which includes an inflatable airbag, a strip cuff, and a thin-film pressure sensor and control components mounted on the strip cuff, this application further includes a non-closed annular ergonomic plate. The inflatable airbag and the inner cuff of the strip cuff can be sequentially fitted into the ergonomic plate. Because the ergonomic plate itself is a roughly annular curved columnar structure, it can support the inflatable airbag and the inner cuff together to form a roughly non-closed annular curved columnar structure. When the user wears the pressurized blood flow restrictor, the ergonomic plate and the inflatable airbag are directly fitted into the cuff. The airbag and inner cuff are worn on the upper and lower limbs at once, and the remaining outer cuff is then wrapped around the ergonomic plate surface, which greatly reduces the difficulty of wearing and securing the pressure flow restriction band. In addition, the ergonomic plate and the limb can jointly limit the size of the space to accommodate the inflatable airbag. When the airbag is inflated, the ergonomic plate and the limb can jointly compress the airbag, so that the airbag can achieve the compressive force applied to the limb more quickly with less air, thereby further improving the performance of the pressure flow restriction band. Attached Figure Description

[0021] To more clearly illustrate the technical solutions of the embodiments of this utility model or the prior art, the drawings used in the description of the embodiments or the prior art will be briefly introduced below. Obviously, the drawings described below are only some embodiments of this utility model. For those skilled in the art, other drawings can be obtained based on these drawings without creative effort.

[0022] Figure 1This is a schematic diagram of the structure of the pressurized blood flow restriction band provided in an embodiment of this application;

[0023] Figure 2 This is a schematic diagram of the lateral structure of the pressurized blood flow restriction band provided in the embodiments of this application;

[0024] Figure 3 This is a schematic diagram of the structure of the ergonomic board provided in an embodiment of this application;

[0025] Figure 4 A schematic diagram of the structure formed when the inflatable airbag provided in the embodiment of this application is disposed in the ergonomic board;

[0026] Figure 5 This is a schematic diagram of the deployment structure of the inflatable airbag provided in an embodiment of this application;

[0027] Figure 6 This is a schematic diagram of the structure of the strip-shaped cuff provided in an embodiment of this application;

[0028] Figure 7 This is a schematic diagram of the structure of the control component provided in the embodiments of this application;

[0029] In the attached diagram, 1 is the ergonomic board, 11 is the inflation hole, 12 is the buckle structure, 2 is the inflation airbag, 21 is the inflation interface, 22 is the second magnetic patch, 3 is the strip-shaped cuff, 31 is the inner lining cuff, 311 is the heating resistance wire, 312 is the plug assembly, 32 is the outer cuff section, and 4 is the control assembly. Detailed Implementation

[0030] For pressure flow restricting bands that are attached to the upper or lower limbs via binding, the process often involves first securing one end of the band, then wrapping the other end around one or more times before connecting the two ends with adhesive or a locking ring. While users can operate the band with both hands when it's on the lower limb, they can only put it on with one hand when it's on the upper limb, causing significant inconvenience.

[0031] Of course, there are also some pressure blood flow restriction bands on the market that are directly designed with an elastic closed ring structure and can be fixed to the upper or lower limbs by wearing a sleeve. However, in order to ensure the compression force on the upper or lower limbs, the inner diameter of the ring structure in the relaxed state of this type of pressure blood flow restriction band is relatively small compared to the upper or lower limbs. This is also very inconvenient when wearing this pressure blood flow restriction band.

[0032] Therefore, this application provides a pressure flow restriction band that can reduce the difficulty of wearing and operating it to a certain extent, increase the speed at which the pressure flow restriction band applies compression force to the limb, thereby improving the performance of the pressure flow restriction band.

[0033] To enable those skilled in the art to better understand the present invention, the present invention will be further described in detail below with reference to the accompanying drawings and specific embodiments. Obviously, the described embodiments are only a part of the embodiments of the present invention, and not all of them. Based on the embodiments of the present invention, all other embodiments obtained by those skilled in the art without creative effort are within the scope of protection of the present invention.

[0034] like Figures 1 to 7 As shown, Figure 1 This is a schematic diagram of the structure of the pressurized blood flow restriction band provided in an embodiment of this application; Figure 2 This is a schematic diagram of the lateral structure of the pressurized blood flow restriction band provided in the embodiments of this application; Figure 3 This is a schematic diagram of the structure of the ergonomic board provided in an embodiment of this application; Figure 4 A schematic diagram of the structure formed when the inflatable airbag provided in the embodiment of this application is disposed in the ergonomic board; Figure 5 This is a schematic diagram of the deployment structure of the inflatable airbag provided in an embodiment of this application; Figure 6 This is a schematic diagram of the structure of the strip-shaped cuff provided in an embodiment of this application; Figure 7 This is a schematic diagram of the structure of the control component provided in an embodiment of this application.

[0035] In one specific embodiment of this application, the pressurized blood flow restriction band may include:

[0036] An ergonomic plate 1 with a non-closed annular curved cylindrical surface structure; an inflatable airbag 2 attached to the inner annular surface of the ergonomic plate 1; an inflation pump connected to the inflation port 21 of the inflatable airbag 2; a control component 4 connected to the inflation pump for controlling the start and stop of the inflation pump; a strip-shaped cuff 3 including an inner cuff 31 and an outer cuff 32, the inner cuff 31 being attached to the surface of the inflatable airbag 2 opposite to the ergonomic plate 1 and extending through the non-closed annular notch of the ergonomic plate 1 to the outside of the ergonomic plate 1; the outer cuff 32 being wound in at least one layer along the outer annular surface of the ergonomic plate 1; a thin-film pressure sensor disposed on the surface of the inner cuff 31 opposite to the ergonomic plate 1; the thin-film pressure sensor and the control component 4 being communicatively connected.

[0037] Reference Figures 1 to 3In this embodiment, the ergonomic plate 1 is a roughly non-closed cylindrical structure designed based on ergonomics. The ergonomic plate 1 is a rigid plate structure, meaning that even in its fully relaxed state, it is roughly cylindrical. Therefore, when the flexible inflatable airbag 2 and the inner cuff 31 are sequentially attached to the inner ring surface of the ergonomic plate 1, they can roughly support the inflatable airbag 2 and the inner cuff 31 to form a cylindrical ring structure. Thus, when the user wears it, the cylindrical ring structure formed by the ergonomic plate 1, the inflatable airbag 2, and the inner cuff 31 can be worn on the upper or lower limbs in a manner similar to wearing a bracelet. The operation is simple, and even with one hand, the wearing difficulty is relatively low.

[0038] It is understandable that the reason why the ergonomic board 1 is set as a non-closed ring structure, rather than a closed ring structure, is to take into account that for people of different weights and sizes, and the different thicknesses of their upper or lower limbs, the inner diameter of the non-closed ring ergonomic board 1 has a certain degree of adjustment space, which can better suit different people.

[0039] Furthermore, to further enhance the ease of wearing the pressure blood flow restriction band, in practical applications, the ergonomic plate 1 can be an elastic plate with an adjustable inner diameter. That is to say, the ergonomic plate 1 can be pried open a certain distance from its notch, so that when wearing the ergonomic plate 1, the inflatable airbag 2, and the inner cuff 31 as a whole, the notch of the ergonomic plate 1 can be pried open, and after the notch is enlarged, the upper or lower limb can be directly inserted into the ergonomic plate 1 through the notch, thus achieving simple and quick wearing of the ergonomic plate 1 and the inflatable airbag 2.

[0040] After the ergonomic board 1, the inflatable airbag 2, and the inner sleeve 31 are put on the upper or lower limbs of the human body, the outer sleeve 32, which is connected to or integrally formed with the inner sleeve 31, can be wrapped around the outer surface of the ergonomic board 1 and attached to the outer surface of the ergonomic board 1 by Velcro or the like.

[0041] Based on the above discussion, when the ergonomic plate 1 and the inflatable airbag 2 are jointly fitted onto the upper or lower limb of the human body, a space is formed between the ergonomic plate 1 and the limb to accommodate the inflatable airbag 2. As the air pump inflates the airbag 2, the ergonomic plate 1 can obviously limit the size of the inflation of the airbag 2 to a certain extent. This allows the pressure exerted by the airbag 2 on the limb to rise to the required pressure more quickly. In other words, due to the limiting effect of the ergonomic plate 1, less air is needed in the airbag 2 to achieve a greater gas pressure on the limb, thus accelerating the working efficiency of the pressure-restricting band. Correspondingly, when it is necessary to release the pressure on the limb to reduce pressure, the air pressure inside the airbag 2 can be reduced more quickly. Therefore, the ergonomic plate 1 in this application can not only improve the convenience of wearing the pressure-restricting band to a certain extent, but also accelerate the inflation speed of the airbag 2, thereby improving the working performance of the pressure-restricting band.

[0042] As described above, the ergonomic board 1 in this application can be an elastic board with an adjustable inner diameter. In practical applications, the ergonomic board 1 can be a PP plastic board or a metal board. In short, as long as a certain force is applied to it, it can be broken open from the notch position to form a certain elastic deformation, thereby increasing the inner diameter of its ring structure, and thus reducing the weight of its structure as much as possible while making it easy to wear.

[0043] Furthermore, the ergonomic plate 1 in this application can also be a perforated curved panel. For example, the perforated curved panel can be a grid perforated structure formed by multiple intersecting strips, or multiple perforations can be directly made on the ergonomic plate 1. For the perforated curved panel, on the one hand, the rigidity of the ergonomic plate 1 can be reduced to a certain extent, thereby reducing the difficulty of prying the ergonomic plate 1 open from the notch gap; on the other hand, the weight of the ergonomic plate 1 can be reduced, improving the portability and ease of use of the entire pressure blood flow restriction belt.

[0044] Based on any of the above embodiments, in an optional embodiment of this application, the pressurized blood flow restriction band may further include:

[0045] The inner ring surface of the ergonomic board 1 is provided with a first magnetic patch, and the surface of the inflatable airbag 2 that is attached to the ergonomic board 1 is provided with a second magnetic patch 22; the first magnetic patch and the second magnetic patch 22 have opposite magnetic properties.

[0046] Reference Figure 4 and Figure 5 For the inflatable airbag 2, when fully deployed, it is roughly as follows: Figure 5The shape shown is rectangular. Based on this, a first magnetic patch is set on the inner ring surface of the ergonomic board 1, and a second magnetic patch 22 is set on one side surface of the inflatable airbag 2. Thus, after the inflatable airbag 2 is inserted into the ergonomic board 1, it is only necessary to press the inflatable airbag 2 against the inner ring surface of the ergonomic board 1 to quickly and easily attach and fix the inflatable airbag 2 to the inner surface of the ergonomic board 1. The inflatable airbag 2 can be removed from the ergonomic board 1 by pulling it. The operation is simple and easy to implement.

[0047] In practical applications, if the ergonomic board 1 is itself a magnetic metal plate, such as an iron plate, then magnetic patches can be placed only on the inflatable airbag 2, allowing the inflatable airbag 2 to automatically adhere to the inner surface of the ergonomic board 1. Furthermore, to ensure a better fit between the inflatable airbag 2 and the ergonomic board 1, a magnetic strip can be placed around the edge of the inflatable airbag 2. Correspondingly, a corresponding magnetic strip structure can also be placed on the ergonomic board 1 at the edge position corresponding to the edge of the inflatable airbag 2. This ensures that the edge of the inflatable airbag 2 is also fully adhered to the ergonomic board 1, preventing poor adhesion that could affect wearability.

[0048] Based on this, a similar magnetic attraction method can also be used to connect the inflatable airbag 2 and the inner lining cuff 31 of the strip cuff 3. Of course, in practical applications, the connection between the inflatable airbag 2 and the strip cuff 3 is not limited to magnetic attraction.

[0049] In addition, in another optional embodiment of this application, it may further include: the airbag layer of the inflatable airbag 2 on the side opposite to the ergonomic board 1 and the inner lining cuff 31 of the strip cuff 3 are integrally formed.

[0050] In this embodiment, the airbag layer on the side of the inflatable airbag 2 facing away from the ergonomic board 1 can serve as both part of the inflatable airbag 2 and as the inner lining of the strip cuff 31. In this case, the inner surface of the airbag layer as the inner surface of the inflatable airbag 2 is an airtight structural layer, while the other surface can be a fabric structural layer. Therefore, in this embodiment, the inflatable airbag 2 and the strip cuff 3 are integrally formed structures. Thus, by bonding the inflatable airbag 2 to the ergonomic board 1, the ergonomic board 1, the inflatable airbag 2, and the strip cuff 3 can be connected into a single integrated structure.

[0051] In addition, in practical applications, the inner sleeve strap 31 can also be configured as a pocket-shaped structure, thereby placing the inflatable airbag 2 inside the pocket of the inner sleeve strap 31. Furthermore, connecting the inner surfaces of the inner sleeve strap 31 and the ergonomic board 1 together can also achieve the integration of the inflatable airbag 2, the inner sleeve strap 31, and the ergonomic board 1 into a single structure.

[0052] Regardless of whether the inner lining sleeve 31 in this application is an integral structure with the inflatable airbag 2, the strip sleeve 3 can be made of flexible fiber fabric.

[0053] Based on this, it is further considered that when the pressure blood flow restriction band in this application is used as a tourniquet, if the blood flow of the upper or lower limbs is restricted for a long time, it is necessary to appropriately relax and promote blood circulation in the upper or lower limbs; therefore, in practical applications, the air pump can inflate and de-inflate the air bag 2 at intervals to avoid necrosis of the upper or lower limbs due to prolonged lack of blood flow.

[0054] Furthermore, prolonged restriction of blood flow to the upper or lower limbs can lead to a drop in temperature in those limbs; therefore, such as Figure 6 As shown, in this application, a heating resistance wire 311 can be further provided in the inner lining sleeve 31. When the temperature of the upper or lower limbs whose blood flow is restricted is too low, the heating resistance wire 311 in the inner lining sleeve 31 can be energized to heat the upper or lower limbs, thereby making the upper or lower limbs warm up more quickly.

[0055] In practical applications, a plug assembly 312 electrically connected to the heating resistance wire 311 can be provided on the side of the inner cuff 31, and a socket assembly can be connected to the control assembly 4. The plug assembly 312 can be plugged into and detached from the socket assembly. A battery electrically connected to the socket assembly can be built into the control assembly 4. When the tap assembly is inserted into the socket assembly, the heating resistance wire 311 inside the inner cuff 31 is connected to the battery, causing the heating resistance wire 311 to heat up. Of course, the control assembly 4 should also include a controller and a circuit switch. The controller can control the circuit switch to open or close, thereby controlling the circuit between the battery and the heating resistance wire 311 to open or close.

[0056] Based on the above embodiments, to facilitate the inflation of the airbag 2, an inflation port 21 can be provided in the middle area of ​​the side surface of the airbag 2 that is attached to the ergonomic board 1. Furthermore, an inflation through hole 11 is provided on the side of the ergonomic board 1 opposite to the notch / gap, and the inflation port 21 of the airbag 2 passes through the inflation through hole 11. Thus, the inflation port 21 of the airbag 2 can extend through the inflation through hole 11 on the ergonomic board 1, thereby allowing it to be connected to an air pump located outside the ergonomic board 1.

[0057] In addition, a snap-fit ​​structure 12 is further provided on the side of the ergonomic board 1 opposite to the inflatable airbag 2 for connecting the housing of the control component 4.

[0058] It is understandable that, such as Figure 7As shown, the control component 4 in this embodiment includes structural components such as a controller and a battery, all of which are built into the housing. The housing may be provided with recessed holes corresponding to the snap-fit ​​structure 12. When the snap-fit ​​structure 12 is inserted into the recessed hole, the control component 4 can be connected to the ergonomic board 1 as a whole.

[0059] Based on this, in order to enable communication between the control component 4 and the thin-film pressure sensor installed on the inner lining sleeve 31, a wireless communication device capable of wireless communication can be installed on the control component 4 and the thin-film pressure sensor, thereby enabling the control component 4 to wirelessly communicate with the thin-film pressure sensor.

[0060] Of course, this application does not exclude the possibility of connecting the thin-film pressure sensor and the control component 4 through a pluggable connector.

[0061] In addition, a display screen and operation buttons for controlling and adjusting the inflation pressure of the airbag 2 can be provided on the housing of the control component 4; and the inflation pump for inflating the airbag 2 can also be integrated into the housing of the control component 4, thereby achieving modular integration of the various components of the pressurized blood flow restriction band to a certain extent.

[0062] In addition, a control valve can be installed at the inflation port 21 of the inflatable airbag 2. After the inflation pump has finished inflating the inflatable airbag 2, the inflation port 21 can be closed by the control valve. At this time, the integrated module of the inflation pump and control component 4 can be removed from the ergonomic board 1 to avoid the control component 4 and inflation pump being too heavy, which would cause inconvenience to the use of the pressure blood flow restriction band.

[0063] In summary, the pressure flow restrictor of this application, in addition to having an inflatable airbag, a strip cuff, and a thin-film pressure sensor and control components mounted on the strip cuff, further includes a non-closed annular ergonomic plate. The inflatable airbag and the inner cuff of the strip cuff can be sequentially fitted into the ergonomic plate. Because the ergonomic plate itself is a roughly annular curved columnar structure, it can support the inflatable airbag and the inner cuff together to form a roughly non-closed annular curved columnar structure. When the user wears the pressure flow restrictor, the ergonomic plate is directly attached to the inner cuff. The inflatable airbag and inner cuff are worn on the upper and lower limbs at once, and the remaining outer cuff is then wrapped around the ergonomic plate surface, which greatly reduces the difficulty of wearing and securing the pressure flow restriction band. In addition, the ergonomic plate and the limb can jointly limit the size of the space to accommodate the inflatable airbag. When the airbag is inflated, the ergonomic plate and the limb can jointly compress the airbag, so that the airbag can achieve the compressive force applied to the limb more quickly with less air, thereby further improving the performance of the pressure flow restriction band.

[0064] It should be noted that, in this document, relational terms such as "first" and "second" are used merely to distinguish one entity or operation from another, and do not necessarily require or imply any such actual relationship or order between these entities or operations. Furthermore, the terms "comprising," "including," or any other variations thereof are intended to cover non-exclusive inclusion, such that the elements inherent in a process, method, article, or apparatus that includes a list of elements are included. Without further limitations, an element defined by the phrase "comprising one..." does not exclude the presence of other identical elements in the process, method, article, or apparatus that includes said element. Additionally, portions of the technical solutions provided in the embodiments of this application that are consistent with the implementation principles of corresponding technical solutions in the prior art have not been described in detail to avoid excessive elaboration.

[0065] This article uses specific examples to illustrate the principles and implementation methods of this utility model. The descriptions of the above embodiments are only for the purpose of helping to understand the method and core ideas of this utility model. It should be noted that for those skilled in the art, several improvements and modifications can be made to this utility model without departing from the principles of this utility model, and these improvements and modifications also fall within the protection scope of this utility model.

Claims

1. A pressurized blood flow restriction band, characterized in that, The device includes an ergonomic plate with a non-closed annular curved cylindrical surface structure; an inflatable airbag attached to the inner annular surface of the ergonomic plate; an inflation pump connected to the inflation port of the airbag; a control component connected to the inflation pump for controlling the start and stop of the inflation pump; a strip-shaped cuff including an inner cuff and an outer cuff, the inner cuff being attached to the surface of the airbag opposite to the ergonomic plate and extending through a non-closed annular notch in the ergonomic plate to the outside of the ergonomic plate; the outer cuff being wound in at least one layer along the outer annular surface of the ergonomic plate; a thin-film pressure sensor disposed on the surface of the inner cuff opposite to the ergonomic plate; and the thin-film pressure sensor being communicatively connected to the control component.

2. The compression tourniquet of claim 1, wherein, The ergonomic board is an elastic board with an adjustable inner diameter.

3. The pressurized blood flow restriction band of claim 2, wherein, The ergonomic board is a PP plastic board or a metal board.

4. The pressurized blood flow restriction band of claim 2, wherein, The ergonomic board is a hollowed-out curved panel.

5. The compression garment of any one of claims 1 to 4, wherein the at least one layer of stretchable material is a knitted fabric. The inner ring surface of the ergonomic board is provided with a first magnetic patch, and the surface of the inflatable airbag that is attached to the ergonomic board is provided with a second magnetic patch; the first magnetic patch and the second magnetic patch have opposite magnetic properties.

6. The pressurized blood flow restriction band as described in claim 5, characterized in that, The airbag layer on the side of the inflatable airbag facing away from the ergonomic board and the inner lining of the strip-shaped cuff are integrally formed.

7. The pressurized blood flow restriction band as described in claim 1, characterized in that, The inner cuff is equipped with a heating resistance wire; The inner lining sleeve has a plug assembly that is electrically connected to the heating resistance wire on its side. The control component is connected to a socket component for plugging and unplugging with the plug component.

8. The pressurized blood flow restriction band as described in claim 1, characterized in that, The strip-shaped cuff is made of flexible fiber fabric.

9. The pressurized blood flow restriction band as described in claim 1, characterized in that, An inflation hole is provided on the side of the ergonomic board opposite to the notch / gap; the inflation port of the inflatable airbag is disposed through the inflation hole.

10. The pressurized blood flow restriction band as described in claim 1, characterized in that, The ergonomic board also has a snap-fit ​​structure on the side opposite to the inflatable airbag for connecting the housing of the control component. The thin-film pressure sensor and the control component are connected by wireless communication.

Images