A femoral artery compression hemostat

Abstract

The present invention relates to the technical field of tourniquets, and particularly to a femoral artery compression tourniquet, which includes a connecting buckle; a first tourniquet, one end of which is connected to the connecting buckle; a second tourniquet, one end of which is connected to the connecting buckle; a fixing frame fixed at the end of the first tourniquet away from the connecting buckle, the fixing frame is composed of two opposed side plates and a cross bar, and the cross bar is fixed between the two side plates. Compared with the prior art, in the present application, by providing a gas volume adjustment structure, in the initial stage of inflation, the air inlet pipe is adjusted to the maximum air intake volume through the gas volume adjustment structure, so that the pressurizing bladder can quickly inflate and expand. When the pressurizing bladder is in contact with the patient's wound position, the air intake volume is adjusted to be smaller through the adjustment structure to achieve slow expansion. This design not only ensures the rapid response of the pressurizing bladder but also facilitates the staff to accurately adjust the pressure applied to the patient's wound.

Description

Technical Field

[0001] The present invention relates to the technical field of tourniquets, and particularly to a femoral artery compression tourniquet. Background Art

[0002] A femoral artery compression tourniquet is a medical auxiliary device mainly used for quickly and effectively controlling femoral artery bleeding in emergency situations. The femoral artery compression tourniquet usually consists of a support structure, a compression pad, a fixing device, etc. The support structure is used to maintain the stability and position of the tourniquet, the compression pad directly acts on the bleeding site to apply pressure, and the fixing device ensures that the tourniquet can be firmly fixed on the patient.

[0003] After retrieval, a Chinese patent with the publication number CN211325350U discloses a surgical compression tourniquet, which includes a tourniquet main body. The tourniquet main body is constructed as a narrow and long strip-shaped structure. A first connection structure and a second connection structure are respectively arranged at both ends of the tourniquet main body. When the tourniquet main body is in a wound state, the first connection structure and the second connection structure are detachably connected. A pressurized airbag is arranged on the tourniquet main body. The pressurized airbag is constructed as a tubular structure extending along the length direction of the tourniquet main body. A plurality of the pressurized airbags are arranged in parallel. An inflation part is further included. The inflation part is communicated with a plurality of the pressurized airbags through pipelines and can simultaneously inflate a plurality of the pressurized airbags. The above solution is used for hemostasis at the wound during the surgical process. However, when the above solution is actually used, there are still the following deficiencies:

[0004] When the compression tourniquet proposed by the above solution is in use, medical staff inflate the inside of the pressurized airbag by continuously squeezing the inflation part, causing the pressurized airbag to expand. For the inflation part, the intake air volume and the outlet air volume are constant. If the intake air volume and the outlet air volume of a single squeeze of the inflation part are small, medical staff need to frequently and highly squeeze the inflation part to complete the inflation process, which not only reduces the inflation efficiency, but also causes soreness in the hand muscles of medical staff after a long time of operation, increasing the operation difficulty and the work burden of medical staff. When a single squeeze of the inflation part is made, if the intake air volume and the outlet air volume are large, although the pressurized airbag can be quickly inflated, due to the large intake air volume at a single time, it is difficult for medical staff to accurately control the pressure exerted by the pressurized airbag on the wound position, which may cause the wound to be under excessive pressure, increasing the patient's pain and even possibly causing further damage to the wound. Since the pressure exerted by the pressurized airbag is not easy to accurately control, medical staff need to continuously observe and adjust during the operation to ensure that the pressure is appropriate, which not only increases the complexity of the operation, but also may increase risks due to improper operation, such as blood circulation obstruction caused by excessive pressure.

[0005] Therefore, the present application provides a femoral artery compression tourniquet. Summary of the Invention

[0006] In view of this, the object of the present invention is to provide a femoral artery compression tourniquet.

[0007] Based on the above object, the present invention provides a femoral artery compression tourniquet, comprising:

[0008] A connecting buckle;

[0009] A first tourniquet, one end of which is connected to the connecting buckle;

[0010] A second tourniquet, one end of which is connected to the connecting buckle;

[0011] A fixing frame, fixed at the end of the first tourniquet away from the connecting buckle, the fixing frame is composed of two opposed side plates and a cross bar, the cross bar is fixed between the two side plates, and the cross bar is connected to the end of the first tourniquet away from the connecting buckle;

[0012] Two card slots, both opened on the fixing frame, and the two card slots are arranged oppositely;

[0013] An elastic pressing member, arranged on the fixing frame;

[0014] A connecting structure, arranged at the end of the second tourniquet away from the connecting buckle;

[0015] An inflation and pressurization structure, arranged on the first tourniquet, the inflation and pressurization structure includes a sliding frame, and the sliding frame is slidably sleeved on the first tourniquet;

[0016] A positioning structure, arranged on the sliding frame for fixing the sliding frame on the first tourniquet;

[0017] An air volume adjustment structure, arranged on the inflation and pressurization structure.

[0018] Preferably, the elastic pressing member includes:

[0019] Two sliding channels, both opened on the fixing frame, and the two sliding channels are arranged oppositely between them;

[0020] An elastic rod, placed between the two sliding channels, both ends of the elastic rod extend into the two sliding channels respectively, and the elastic rod is slidably arranged in the two sliding channels;

[0021] Two limiting rings, respectively fixedly sleeved on both ends of the elastic rod, and the two limiting rings are respectively located on both sides of the fixing frame;

[0022] Two tension springs, one end of each is connected to the fixing frame, and the other ends are respectively connected to both ends of the elastic rod.

[0023] Preferably, the connection structure includes:

[0024] An outer cylinder, fixed to one end of the second tourniquet away from the connection buckle, and both ends of the outer cylinder are in an open structure;

[0025] Two clamping blocks, respectively slidably arranged at both ends of the outer cylinder;

[0026] A spring, with both ends of the spring respectively connected to the two clamping blocks;

[0027] Two sliding openings, respectively opened at both ends of the outer cylinder;

[0028] Two sliding blocks, respectively fixed on the two clamping blocks, and the two sliding blocks are respectively slidably arranged in the two sliding openings.

[0029] Preferably, the inflation and pressurization structure further includes:

[0030] A pressurization bladder, fixed to the side of the sliding frame;

[0031] An inflation bladder;

[0032] An air duct, one end of which is communicated with the inflation bladder, and the other end is communicated with the pressurization bladder;

[0033] An air inlet pipe, fixed on the inflation bladder and communicated with the inside of the inflation bladder.

[0034] Preferably, one-way flow limiting structures are arranged on both the air duct and the air inlet pipe.

[0035] Preferably, the positioning structure includes:

[0036] A fixed cover, fixed to the side of the sliding frame, and the inside of the fixed cover is hollow;

[0037] A connecting rod, passing through the fixed cover and the sliding frame, and slidably connected between the fixed cover and the sliding frame;

[0038] A pointed head, fixed to one end of the connecting rod inside the sliding frame, and the pointed head is in a pointed structure;

[0039] Two positioning reed pieces, one end of each of which is fixedly connected to the middle position of the inner surface of the fixed cover, and the other end of each of which is fixedly connected to the connecting rod, and both of the two positioning reed pieces are in an arc structure;

[0040] A push button, fixed to one end of the connecting rod outside the fixed cover.

[0041] Preferably, the air volume adjusting structure includes:

[0042] An adjusting sleeve, movably inserted into the air inlet pipe;

[0043] A plurality of first air inlets, all of which are opened on the adjusting sleeve;

[0044] A limiting port, which is opened on the air inlet pipe;

[0045] A limiting block, which is fixed on the adjusting sleeve, and the limiting block is slidably arranged in the limiting port;

[0046] A damping ring, which is slidably sleeved on the air inlet pipe and is fixedly connected to the limiting block;

[0047] A plurality of second air inlets, all of which are opened on the air inlet pipe.

[0048] Preferably, the inner ring of the damping ring is in mutual fit with the outer surface of the air inlet pipe, and the damping ring is made of rubber material.

[0049] Preferably, the plurality of first air inlets are respectively arranged opposite to the plurality of second air inlets.

[0050] Preferably, the sides of the two limiting rings are in mutual fit with the sides of the fixing frame.

[0051] Advantages of the present invention:

[0052] 1. For this femoral artery compression hemostat, by setting the air volume adjustment structure, in the initial stage of inflation, the air inlet pipe is adjusted to the maximum air intake through the air volume adjustment structure, so that the compression bladder can quickly inflate and expand. When the compression bladder is in contact with the patient's wound position, the air intake is reduced through the adjustment structure to achieve slow inflation. This design not only ensures the quick response of the compression bladder but also facilitates the staff to accurately adjust the pressure applied to the patient's wound, avoiding the discomfort caused to the patient by sudden pressure changes. The precise pressure adjustment helps to reduce the possible harm to the patient caused by improper compression. Through the air volume adjustment structure, the staff can monitor and adjust the pressure of the compression bladder in real time to ensure the safety of the patient during the treatment process.

[0053] 2. For this femoral artery compression hemostat, by setting the sliding frame, this design allows medical staff to flexibly adjust the position of the compression bladder according to the specific position of the patient's wound, which greatly enhances the adaptability of the compression treatment, ensures that the compression bladder can accurately cover the wound, and improves the treatment effect. The sliding frame can be easily unlocked by pulling the pressure button, enabling it to freely slide on the first hemostat. After the adjustment is completed, pressing the pressure button again can fix the position of the compression bladder. This operation method is simple and fast, reducing the operation difficulty of medical staff. This design simplifies the adjustment process of the compression bladder position, enabling medical staff to complete the compression treatment more quickly and accurately;

[0054] 3. This femoral artery compression hemostat can be easily stored by the staff through simple operation steps by setting an elastic pressing member. First, remove the outer cylinder, then wind the first hemostat and the second hemostat around the fixing frame and the elastic rod, and finally connect the outer cylinder to complete the storage. This design greatly simplifies the storage process and improves work efficiency. When the first hemostat and the second hemostat are wound around the elastic rod, they will squeeze the elastic rod. Since the elastic rod is connected to the fixing frame through two tension springs, the elastic force of the tension springs enables the elastic rod to tightly press the hemostat in a wound state, thus achieving the effect of pressing and fixing. This design effectively avoids the loosening of the wound hemostat and improves the stability after storage;

[0055] 4. This femoral artery compression hemostat is provided with a damping ring. The large friction between the damping ring and the air inlet pipe effectively prevents the accidental movement of the adjusting sleeve in the non-operating state, which ensures that the pressure setting of the pressurizing bladder will not change due to external factors (such as vibration, collision, etc.), thus guaranteeing the continuity and stability of the treatment process. BRIEF DESCRIPTION OF THE DRAWINGS

[0056] In order to more clearly illustrate the technical solutions in the present invention or the prior art, the following will briefly introduce the drawings required for use in the description of the embodiments or the prior art. Obviously, the following drawings are only those of the present invention. For those of ordinary skill in the art, other drawings can also be obtained based on these drawings without creative efforts.

[0057] Figure 1 is a three-dimensional structure schematic diagram of the present invention;

[0058] Figure 2 is a three-dimensional structure schematic diagram of another perspective of the present invention;

[0059] Figure 3 is for the present invention Figure 2 is an enlarged structure schematic diagram of part A in the present invention;

[0060] Figure 4 is for the present invention Figure 2 is an enlarged structure schematic diagram of part B in the present invention;

[0061] Figure 5 is a structure schematic diagram of the fixing frame and the connecting structure;

[0062] Figure 6 is a structure schematic diagram of the clamping structure;

[0063] Figure 7 is a structure schematic diagram of the positioning structure;

[0064] Figure 8 is a sectional structure schematic diagram of the positioning structure;

[0065] Figure 9 It is a structural schematic diagram of the gas volume adjustment structure.

[0066] The markings in the figure are:

[0067] 1. Connecting buckle; 2. First tourniquet; 3. Second tourniquet; 4. Fixing frame; 5. Card slot; 61. Slideway; 62. Elastic rod; 63. Limit ring; 64. Tension spring; 71. Outer cylinder; 72. Block; 73. Spring; 74. Slide opening; 75. Slide block; 81. Sliding frame; 82. Pressing bladder; 83. Inflatable bladder; 84. Air duct; 85. Intake pipe; 91. Fixing cover; 92. Connecting rod; 93. Pointed head; 94. Positioning reed; 95. Pressing button; 101. Adjusting sleeve; 102. First air inlet; 103. Limit port; 104. Limit block; 105. Damping ring; 106. Second air inlet. Detailed implementation manners

[0068] In order to make the objectives, technical solutions and advantages of the present invention clearer and more understandable, the present invention will be further described in detail below with reference to specific embodiments.

[0069] It should be noted that, unless otherwise defined, the technical terms or scientific terms used in the present invention should have the ordinary meanings understood by those of ordinary skill in the field to which the present invention belongs. The "first", "second" and similar terms used in the present invention do not denote any order, quantity or importance, but are only used to distinguish different components. The terms such as "comprising" or "including" mean that the elements or objects appearing before this term cover the elements or objects listed after this term and their equivalents, without excluding other elements or objects. The terms such as "connected" or "coupled" are not limited to physical or mechanical connections, but may include electrical connections, whether direct or indirect. The terms such as "upper", "lower", "left" and "right" are only used to represent relative positional relationships, and when the absolute position of the object being described changes, the relative positional relationship may also change accordingly.

[0070] As Figures 1 to 9 shown, the femoral artery compression tourniquet includes a connecting buckle 1; a first tourniquet 2, one end of which is connected to the connecting buckle 1; a second tourniquet 3, one end of which is connected to the connecting buckle 1; a fixing frame 4, which is fixed to the end of the first tourniquet 2 away from the connecting buckle 1. The fixing frame 4 is composed of two opposing side plates and a cross bar. The cross bar is fixed between the two side plates and is connected to the end of the first tourniquet 2 away from the connecting buckle 1; two card slots 5 are both opened on the fixing frame 4, and the two card slots 5 are arranged oppositely;

[0071] As Figure 4 、 Figure 5As shown in the figure, the femoral artery compression hemostat further includes an elastic pressing member disposed on the fixing frame 4. The elastic pressing member includes: two sliding channels 61, both of which are opened on the fixing frame 4 and are disposed opposite to each other between the two sliding channels 61; an elastic rod 62 placed between the two sliding channels 61. The two ends of the elastic rod 62 respectively extend into the two sliding channels 61, and the elastic rod 62 is slidably disposed in the two sliding channels 61; two limiting rings 63 are respectively fixedly sleeved on the two ends of the elastic rod 62. The two limiting rings 63 are respectively located on both sides of the fixing frame 4, and the sides of the two limiting rings 63 are respectively in contact with the sides of the fixing frame 4; two tension springs 64, one end of each is connected to the fixing frame 4, and the other ends are respectively connected to the two ends of the elastic rod 62.

[0072] When the femoral artery compression hemostat proposed by the present invention is in use and needs to be stored, when the staff first removes the outer cylinder 71 from the fixing frame 4, then winds the first hemostatic band 2 and the second hemostatic band 3 around the fixing frame 4 and the elastic rod 62 to make the first hemostatic band 2 and the second hemostatic band 3 wound into a roll, and finally connects the outer cylinder 71 at the end of the second hemostatic band 3 to the fixing frame 4, the storage of the compression hemostat can be realized. This is convenient for medical staff to store and transfer the compression hemostat. When the first hemostatic band 2 and the second hemostatic band 3 are wound around the elastic rod 62, the first hemostatic band 2 and the second hemostatic band 3 will squeeze the elastic rod 62. The elastic rod 62 is connected to the fixing frame 4 through two tension springs 64. Under the elastic force of the two tension springs 64, the elastic rod 62 can tightly press the first hemostatic band 2 and the second hemostatic band 3 in a wound state, so as to achieve the effect of tightly fixing the first hemostatic band 2 and the second hemostatic band 3 and prevent the rolled first hemostatic band 2 and the second hemostatic band 3 from loosening.

[0073] As Figure 5 、 Figure 6 As shown in the figure, the femoral artery compression hemostat further includes a connecting structure disposed at one end of the second hemostatic band 3 away from the connecting buckle 1. The connecting structure includes: an outer cylinder 71 fixed at one end of the second hemostatic band 3 away from the connecting buckle 1. Both ends of the outer cylinder 71 are in an open structure; two clamping blocks 72 are respectively slidably disposed at both ends of the outer cylinder 71; a spring 73, the two ends of the spring 73 are respectively connected to the two clamping blocks 72; two sliding ports 74 are respectively opened at both ends of the outer cylinder 71; two sliding blocks 75 are respectively fixed on the two clamping blocks 72, and the two sliding blocks 75 are respectively slidably disposed in the two sliding ports 74.

[0074] The outer cylinder 71 is connected to the fixing frame 4 through a connection structure. When connecting the outer cylinder 71 and the fixing frame 4, the staff first pulls the two sliders 75 to make the two sliders 75 approach each other. When the two sliders 75 approach each other, they can drive the two clamping blocks 72 to approach each other until the two clamping blocks 72 are both retracted into the interior of the outer cylinder 71. In addition, when the two clamping blocks 72 approach each other, they can also squeeze the spring 73. Then, the staff places the outer cylinder 71 on the fixing frame 4 so that the two clamping blocks 72 move to positions facing the two clamping grooves 5. Further, the staff releases the two sliders 75, and the two clamping blocks 72 move away from each other under the elastic force of the spring 73 until the two clamping blocks 72 are respectively clamped into the two clamping grooves 5. In summary, the staff can realize the quick disassembly and assembly of the outer cylinder 71 by controlling the positions of the two sliders 75, so as to facilitate the first tourniquet 2 and the second tourniquet 3 to form a loop structure;

[0075] As Figures 1 to 3 shown, the femoral artery compression tourniquet further includes an inflation and compression structure provided on the first tourniquet 2. The inflation and compression structure includes a sliding frame 81 that is slidably sleeved on the first tourniquet 2. The inflation and compression structure further includes: a compression bladder 82 fixed to the side of the sliding frame 81; an inflation bladder 83; an air duct 84 with one end communicating with the inflation bladder 83 and the other end communicating with the compression bladder 82; an air inlet pipe 85 fixed to the inflation bladder 83 and communicating with the interior of the inflation bladder 83. One-way flow-limiting structures are provided on both the air duct 84 and the air inlet pipe 85;

[0076] As Figure 7 、 Figure 8 shown, the femoral artery compression tourniquet further includes a positioning structure provided on the sliding frame 81 for fixing the sliding frame 81 on the first tourniquet 2. The positioning structure includes: a fixed cover 91 fixed to the side of the sliding frame 81, with a hollow interior; a connecting rod 92 passing through the fixed cover 91 and the sliding frame 81 and slidably connected between the fixed cover 91 and the sliding frame 81; a pointed head 93 fixed to one end of the connecting rod 92 inside the sliding frame 81, and the pointed head 93 is in a pointed structure; two positioning spring pieces 94 with one end fixed to the middle position of the inner surface of the fixed cover 91 and the other end fixed to the connecting rod 92, and the two positioning spring pieces 94 are both in an arc structure; a push button 95 fixed to one end of the connecting rod 92 outside the fixed cover 91;

[0077] When applying pressure to stop bleeding on a patient's wound, the staff sets the loop structure formed by the first tourniquet 2 and the second tourniquet 3 on the position of the patient's wound, and then adjusts the position of the pressure bladder 82 so that the pressure bladder 82 faces the wound. In addition, the first tourniquet 2 and the second tourniquet 3 are connected by a connection buckle 1, and the position of the connection buckle 1 is convenient for the staff to adjust the size of the loop structure jointly formed by the first tourniquet 2 and the second tourniquet 3, so that the first tourniquet 2 and the second tourniquet 3 can fit the patient's skin. The specific structure and working principle of the connection buckle 1 are not the innovative part of this technical solution and are not shown in the figure, nor will they be elaborated here. When adjusting the position of the pressure bladder 82, the medical staff first pulls the pressure button 95 to drive the connecting rod 92 to move. When the connecting rod 92 moves, it can also drive the pointed head 93 to move until the pointed head 93 separates from the first tourniquet 2. Without the restriction of the pointed head 93, the sliding frame 81 can slide freely on the first tourniquet 2. When the sliding frame 81 moves, the pressure bladder 82 thereon will also move accordingly. After adjusting the pressure bladder 82 to a suitable position, the staff presses the pressure button 95 again, so that the pointed head 93 presses tightly against the first tourniquet 2. At this time, the pointed head 93 plays a fixing role on the sliding frame 81, and the position of the pressure bladder 82 will also be fixed. Further, the connecting rod 92 and the fixed cover 91 are connected by two arc-shaped positioning spring pieces 94. When the pointed head 93 separates from the first tourniquet 2, both of the two positioning spring pieces 94 deform towards the direction close to the pressure button 95. At this time, under the elastic force of the two positioning spring pieces 94 themselves, the position of the connecting rod 92 will be fixed. When the connecting rod 92 moves, the two positioning spring pieces 94 will deform. When the pointed head 93 presses tightly against the first tourniquet 2, both of the two positioning spring pieces 94 deform towards the direction close to the first tourniquet 2. At this time, the two positioning spring pieces 94 will return to their original states. In this case, under the elastic force of the two positioning spring pieces 94 themselves, the position of the connecting rod 92 will also be fixed. Therefore, under the elastic force of the two positioning spring pieces 94, whether the pointed head 93 is far from the first tourniquet 2 or the pointed head 93 presses tightly against the first tourniquet 2, the position of the connecting rod 92 will be fixed, which is convenient for the staff to flexibly adjust the position of the pointed head 93;

[0078] Such as Figure 9As shown, the femoral artery compression hemostat further includes a gas volume adjustment structure, which is arranged on the inflation and compression structure. The gas volume adjustment structure includes: an adjustment sleeve 101, which is movably inserted into the air inlet pipe 85; a plurality of first air inlets 102, which are all opened on the adjustment sleeve 101; a limit port 103, which is opened on the air inlet pipe 85; a limit block 104, which is fixed on the adjustment sleeve 101, and the limit block 104 is slidably arranged in the limit port 103; a damping ring 105, which is slidably sleeved on the air inlet pipe 85 and is fixedly connected to the limit block 104. The inner ring of the damping ring 105 is in mutual fit with the outer surface of the air inlet pipe 85, and the damping ring 105 is made of rubber material; a plurality of second air inlets 106, which are all opened on the air inlet pipe 85, and the plurality of first air inlets 102 are respectively arranged opposite to the plurality of second air inlets 106;

[0079] When the pressurized bag 82 is facing the patient's wound, the staff continuously squeezes the inflatable bag 83 to make the inflatable bag 83 pump gas into the pressurized bag 82, thereby gradually inflating the pressurized bag 82 and applying a certain pressure to the patient's wound. The inflatable bag 83 is connected to an air guide tube 84 and an air inlet pipe 85. Both the air guide tube 84 and the air inlet pipe 85 are provided with a one-way flow limiting structure. Under the action of the two one-way flow limiting structures, when the staff presses the inflatable bag 83, the gas inside the inflatable bag 83 will be pressed into the pressurized bag 82 through the air guide tube 84. When the staff releases the inflatable bag 83, the inflatable bag 83 will return to its original state under the action of its own elastic force. At this time, the inflatable bag 83 can pass through the air inlet pipe 85 extracts gas from the external environment, which makes it easier for the inflatable bag 83 to continuously pump gas into the pressurized bag 82. The one-way flow limiting structure is a common design in the prior art, which is not shown in the figure and will not be described in detail here. In addition, a gas volume adjustment structure is also provided on the pressurized bag 82. In the initial stage of inflation, the staff can adjust the air inlet pipe 85 to the maximum air intake through the air volume adjustment structure, which enables the pressurized bag 82 to be inflated and expanded quickly. When the pressurized bag 82 expands to fit the position of the patient's wound, the staff reduces the air intake of the air inlet pipe 85 through the air volume adjustment structure to make the pressurized bag 82 expand slowly. This design is conducive to the staff to accurately adjust the pressure applied by the pressurized bag 82 on the patient's wound. , to avoid discomfort to the patient. Specifically, for the air volume adjustment structure, a slidable adjustment sleeve 101 is provided in the air inlet pipe 85, a plurality of second air inlets 106 are provided on the air inlet pipe 85, and a plurality of first air inlets 102 are provided on the adjustment sleeve 101. When the plurality of first air inlets 102 and the plurality of second air inlets 106 completely overlap, the air inlet pipe 85 has a maximum air intake volume. When the staff pulls the adjustment sleeve 101, the plurality of first air inlets 102 will move accordingly, which makes the plurality of first air inlets 102 and the plurality of second air inlets 106 staggered with each other. At this time, the overlapping portion between the plurality of first air inlets 102 and the plurality of second air inlets 106 will be reduced, and the air inlet pipe 85 The air intake volume will also decrease accordingly. In summary, the staff can adjust the air intake volume of the air intake pipe 85 by pulling the adjusting sleeve 101. When the adjusting sleeve 101 is moving, the limiting opening 103 and the limiting block 104 limit the movement of the adjusting sleeve 101. When the limiting block 104 is located at one end of the limiting opening 103, the first air intake ports 102 and the second air intake ports 106 are exactly opposite to each other. At this time, the air intake pipe 85 has the maximum air intake volume. When the limiting block 104 is located at the other end of the limiting opening 103, the ends of the first air intake ports 102 coincide with the ends of the second air intake ports 106. At this time, the air intake pipe 85 has the minimum air intake volume.

[0080] In addition, a damping ring 105 is fixed on the limit block 104, and the inner ring of the damping ring 105 is in mutual contact with the outer surface of the air inlet pipe 85, which results in a large frictional force between the damping ring 105 and the air inlet pipe 85. Under the action of this frictional force, the adjusting sleeve 101 will not move under non-artificial circumstances. This design can ensure the stability of the adjusting sleeve 101.

[0081] Those of ordinary skill in the art should understand that the discussion of any above embodiment is only exemplary and is not intended to imply that the scope of the present invention (including the claims) is limited to these examples; under the concept of the present invention, the technical features in the above embodiments or different embodiments can also be combined, the steps can be implemented in any order, and there are many other variations in different aspects of the present invention as described above, which are not provided in detail for the sake of brevity.

[0082] The present invention is intended to cover all such substitutions, modifications, and variations that fall within the broad scope of the appended claims. Therefore, any omissions, modifications, equivalent substitutions, improvements, etc. made within the spirit and principles of the present invention shall be included within the protection scope of the present invention.

Claims

1. A femoral artery pressure tourniquet, characterized in that: include: Connecting buckle (1); A first tourniquet (2), one end of which is connected to the connecting buckle (1); A second tourniquet (3), one end of which is connected to the connecting buckle (1); A fixing frame (4) is fixed to an end of the first tourniquet (2) away from the connecting buckle (1), the fixing frame (4) is composed of two opposite side plates and a cross bar, the cross bar is fixed between the two side plates, and the cross bar is connected to an end of the first tourniquet (2) away from the connecting buckle (1); Two card slots (5) are both provided on the fixing frame (4), and the two card slots (5) are arranged opposite to each other; An elastic pressing member is arranged on the fixing frame (4), and the elastic pressing member comprises: two slideways (61), both of which are opened on the fixing frame (4), and the two slideways (61) are arranged opposite to each other; an elastic rod (62), which is arranged between the two slideways (61), and the two ends of the elastic rod (62) respectively extend into the two slideways (61), and the elastic rod (62) is slidably arranged in the two slideways (61); two limiting rings (63), which are respectively fixedly sleeved on the two ends of the elastic rod (62), and the two limiting rings (63) are respectively located on both sides of the fixing frame (4); two tension springs (64), one end of which is connected to the fixing frame (4), and the other end is respectively connected to the two ends of the elastic rod (62); A connecting structure, arranged at an end of the second tourniquet (3) away from the connecting buckle (1); An inflation and pressurization structure, arranged on the first tourniquet (2), the inflation and pressurization structure comprising a sliding frame (81), the sliding frame (81) being slidably sleeved on the first tourniquet (2); a positioning structure, arranged on the sliding frame (81) and used for fixing the sliding frame (81) on the first tourniquet (2); The air volume regulating structure is arranged on the inflation and pressurization structure.

2. The femoral artery pressurized tourniquet according to claim 1, characterized in that: The connection structure comprises: An outer cylinder (71) is fixed to an end of the second tourniquet (3) away from the connecting buckle (1), and both ends of the outer cylinder (71) are open structures; Two clamping blocks (72) are slidably disposed at two ends of the outer cylinder (71) respectively; A spring (73), wherein two ends of the spring (73) are respectively connected to the two clamping blocks (72); Two sliding openings (74) are respectively provided at two ends of the outer cylinder (71); The two sliders (75) are respectively fixed on the two clamping blocks (72), and the two sliders (75) are respectively slidably disposed in the two sliding openings (74).

3. The femoral artery pressurized tourniquet according to claim 2, characterized in that: The inflatable pressurized structure also includes: A pressurizing bag (82) fixed on a side surface of the sliding frame (81); Inflatable bladder (83); An airway tube (84), one end of which is connected to the inflation bag (83) and the other end of which is connected to the pressurizing bag (82); An air inlet pipe (85) is fixed on the inflatable bag (83) and is communicated with the interior of the inflatable bag (83).

4. The femoral artery pressurized tourniquet according to claim 3, characterized in that: The air guide pipe (84) and the air inlet pipe (85) are both provided with a one-way flow limiting structure.

5. The femoral artery pressurized tourniquet according to claim 1, characterized in that: The positioning structure comprises: A fixed cover (91) fixed to a side surface of the sliding frame (81), the interior of the fixed cover (91) being hollow; A connecting rod (92) passes through the fixed cover (91) and the sliding frame (81) and is slidably connected between the fixed cover (91) and the sliding frame (81); A pointed head (93) is fixed to one end of the connecting rod (92) located inside the sliding frame (81), and the pointed head (93) is a pointed tip structure; Two positioning springs (94), one end of each of which is fixedly connected to the middle position of the inner surface of the fixed cover (91), and the other end of each of which is fixedly connected to the connecting rod (92), and the two positioning springs (94) are both in an arc-shaped structure; A pressing button (95) is fixed to one end of the connecting rod (92) located outside the fixed cover (91).

6. The femoral artery pressurized tourniquet according to claim 3, characterized in that: The gas volume regulating structure comprises: An adjusting sleeve (101) movably inserted into the air inlet pipe (85); A plurality of first air inlets (102), all of which are provided on the adjustment sleeve (101); A limiting opening (103) is provided on the air inlet pipe (85); A limit block (104) is fixed on the adjustment sleeve (101), and the limit block (104) is slidably disposed in the limit opening (103); A damping ring (105) is slidably sleeved on the air inlet pipe (85) and fixedly connected to the limit block (104); A plurality of second air inlets (106) are all provided on the air inlet pipe (85).

7. The femoral artery pressurized tourniquet according to claim 6, characterized in that: The inner ring of the damping ring (105) and the outer surface of the air intake pipe (85) are in contact with each other, and the damping ring (105) is made of rubber material.

8. The femoral artery pressurized tourniquet according to claim 7, characterized in that: The plurality of first air inlets (102) are respectively arranged opposite to the plurality of second air inlets (106).

9. The femoral artery pressurized tourniquet according to claim 1, characterized in that: The side surfaces of the two limiting rings (63) are in contact with the side surfaces of the fixing frame (4).

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