Multifunctional wound hemostasis harness

Abstract

The invention provides a multifunctional wound hemostasis harness which comprises a connecting band, the connecting band is detachably connected with a directional compression air bag, the directional compression air bag is connected with an air pump, and the directional compression air bag can perform directional inflation expansion and contraction under the control action of the air pump to perform compression hemostasis on blood vessels or wounds of a junction part and a trunk part; pelvis fixing buckles capable of being buckled are arranged at the two ends of the connecting band respectively, the pelvis fixing buckles have a force indicating function, and the pelvis fixing buckles at the two ends tighten the corresponding fixing parts after being buckled. The pelvis is fixed through the connecting belt and the portable buckle, the directional compression air bag can be used for directional inflation expansion and contraction under the control action of the air pump, blood vessels or wounds of the junction and the trunk are subjected to compression hemostasis, and the multifunctional hemostasis kit is convenient to use and suitable for various occasions such as accident first aid and emergency rescue.

Description

Technical Field

[0001] The present invention relates to the technical field of medical devices, in particular to a multifunctional trauma hemostatic device suitable for hemostasis and pelvic fixation when trauma occurs at junctions, trunks and limbs. Background Art

[0002] In emergency rescue situations such as traffic accidents, when people are traumatized, whether the wound can stop bleeding in time is often the most critical step in medical rescue. The equipment currently available on the market for trauma hemostasis and bandage mainly includes: when bleeding from the limbs, the most effective means is to use a rotary tourniquet; when bleeding from the abdominal torso, Israeli bandages or triangular bandages are mainly used to stop bleeding; when bleeding from the junction, airbag inflation or rotary rod rotation compression of the junction is mainly used to stop bleeding; when trauma occurs at the groin junction, a pelvic fixation belt is often required for pelvic fixation. In particular, these rescue equipment have the following technical defects when it comes to rescue at the junction bleeding: compression and hemostasis are difficult to fix, the compression device has limited travel, poor directionality, complex structure, single function, and is not easy to carry. It is difficult to stop bleeding at the junction injury, and the rescue efficiency is slow.

[0003] Chinese invention patent CN105105817 B discloses a pressurized hemostatic device for the upper limb junction. This device uses a pressurized hemostatic airbag placed at the junction of the upper limb to inflate and pressurize the device to achieve hemostasis. This device has the following technical drawbacks: it can only be used at the junction of the upper limb, where tourniquets are not suitable for hemostasis. Furthermore, the hemostatic airbag has drawbacks such as sudden changes in travel during inflation, which can cause tissue pinching.

[0004] A Chinese patent with authorization publication number CN 207912727 U discloses a femoral artery hemostat, comprising a hip strap with fixed connecting straps at each end. Each fixed connecting strap at each end of the hip strap is provided with a movable inflatable pressurized airbag, each inflatable pressurized airbag connected to an air pump. A compression pad is fixedly provided on the surface of the inflatable pressurized airbag that contacts the human body, the compression pad protruding from the surface of the inflatable pressurized airbag, and the free ends of the fixed connecting straps are provided with fasteners for quick connection. This device is capable of providing sustained, uniform compression and hemostasis of the femoral artery, but suffers from the following technical drawbacks: the pressurized airbag of the device is configured to move along the connecting strap, resulting in unstable fixation and easy slippage during compression and hemostasis. Femoral artery bleeding is often accompanied by pelvic trauma, and the device cannot provide pelvic fixation, failing to address pelvic injuries.

[0005] International patent publication number WO2013025546A1 discloses a device and method for pelvic fracture fixation or neck fixation and bleeding control. The device uses a spring buckle to fix the pelvic fracture with appropriate force, and uses a nested inflatable airbag to effectively compress the bleeding blood vessels at the junction to control wound bleeding. The device can effectively solve the bleeding at the junction and pelvic fixation injuries, but has the following technical defects: First, the spring buckle is large in size and complex in structure, and it is necessary to punch holes in the connecting belt, which reduces the strength of the connecting belt and is inconvenient to use; second, the nested inflatable airbag adopts a nested structure. The number of layers cannot be increased due to the space limitation of the maximum bottom circle diameter, and the stroke is small, so the patented solution sets a thickened stroke plate on the top of the airbag to increase the stroke, resulting in a smaller compression ratio between the maximum stroke height during expansion and the storage thickness during compression. The airbag is easy to advance during expansion and easy to pinch tissue during retraction. The airbag inflation rate is also very slow, occupies a large space, and has poor compression and hemostasis effects. Third, the injuries in the accident environment are complicated, and the function of the device is still relatively single. It cannot be used for limb hemostasis and abdominal bandage. When the limbs or torso are bleeding, a limb tourniquet, a triangular bandage or an Israeli bandage is still needed to solve the problem.

[0006] Therefore, how to design a multifunctional trauma hemostatic device has become an urgent problem to be solved. Summary of the Invention

[0007] In view of the problems existing in the prior art, the present invention provides a multifunctional trauma hemostatic device to solve at least one of the above technical problems.

[0008] The technical solution of the present invention is: a multifunctional trauma hemostasis device, including a connecting belt, which is detachably connected to a directional compression airbag, which is connected to an air pump. The directional compression airbag can be directionally inflated and contracted under the control of the air pump to compress and stop bleeding at the junction, blood vessels, femoral artery or wound of the trunk; the two ends of the connecting belt are respectively provided with pelvic fixing buckles that can be fastened, and the pelvic fixing buckles have a force indication function. The pelvic fixing buckles at both ends tighten the corresponding fixed parts after being fastened.

[0009] The present invention adopts a connecting belt and a portable buckle to fix the pelvis, and adopts a directional compression airbag that can be directionally inflated and contracted under the control of an air pump to compress and stop bleeding on blood vessels or wounds at the junction and trunk. The multifunctional hemostatic device is easy to use and is suitable for various occasions such as accident first aid and emergency rescue. It can greatly reduce the mortality rate of hemorrhagic injuries in combat, and solves the technical defects of the existing technology that the injuries in the sudden accident environment are complicated, the function of the device is still relatively single, and it cannot be used for limb hemostasis and abdominal bandage hemostasis. When the limbs or trunk bleed, a limb tourniquet, a triangular bandage or an Israeli bandage is still needed. BRIEF DESCRIPTION OF THE DRAWINGS

[0010] Figure 1 This is a schematic diagram of the usage status structure of the first embodiment of the present invention.

[0011] Figure 2 This is a schematic diagram of the installation structure of more than three airbag units according to the second embodiment of the present invention.

[0012] Figure 3 This is a schematic diagram of the structure of a pagoda-shaped directional compression airbag according to the third embodiment of the present invention.

[0013] Figure 4 This is a schematic diagram of the pelvic fixing buckle structure of embodiment 7 of the present invention.

[0014] Figure 5 This is a schematic diagram of the usage status structure of Example 8 of the present invention.

[0015] Figure 6 This is a schematic diagram of the usage structure of embodiment 9 of the present invention.

[0016] Figure 7 This is a schematic diagram of the usage status structure of the tenth embodiment of the present invention.

[0017] Figure 8 This is a schematic diagram of the parallel structure of the upper and lower edges of the line strips and the connecting strips according to the eleventh embodiment of the present invention.

[0018] Figure 9 This is a schematic diagram of the structure in which the upper and lower edges of the line strips and the connecting strips are arranged at an angle according to the eleventh embodiment of the present invention.

[0019] Figure 10 This is a schematic diagram of the structure of the combined airbag according to the twelfth embodiment of the present invention.

[0020] Figure 11 This is a structural diagram of the installation of a combined airbag and a pressure plate according to a sixteenth embodiment of the present invention.

[0021] Figure 12 This is a schematic structural diagram of a strip-shaped airbag used for hemostasis of limbs according to the tenth embodiment of the present invention.

[0022] In the figure: 1. Connecting belt; 2. Directional compression airbag; 3. Pelvis; 4. Pelvic fixing buckle; 5. Femoral artery; 6. Wound dressing; 7. Belt ring; 8. Line belt; 9. Auxiliary tourniquet; 10. Stirring rod; 11. Strip airbag; 12. Ring airbag; 13. Compression plate; 201. Airbag; 203. Sheet airbag monomer; 401. First connecting piece; 402. Hollow frame; 403. Hollow accommodating cavity; 404. Sounding part; 405. Second connecting piece. DETAILED DESCRIPTION

[0023] The present invention will be further described below with reference to the accompanying drawings.

[0024] See Figure 1-12 The structures, proportions, sizes, etc. illustrated in the drawings of this specification are only used to match the contents disclosed in the specification for people familiar with this technology to understand and read. They are not used to limit the conditions for the implementation of the present invention, so they have no substantial technical significance. Any modification of the structure, change in the proportional relationship or adjustment of the size should still fall within the scope of the technical content disclosed by the present invention without affecting the efficacy and purpose that can be achieved by the present invention. At the same time, the terms such as "upper", "lower", "left", "right", "middle" and "one" quoted in this specification are only for the convenience of description and are not used to limit the scope of the implementation of the present invention. Changes or adjustments in their relative relationships should also be regarded as the scope of the implementation of the present invention without substantially changing the technical content.

[0025] Example 1: A multifunctional hemostatic device for wounds, referring to Figure 1 The trauma hemostasis device protects the pelvic fixation and lower limb femoral artery hemostasis function, including a connecting belt 1, which is detachably connected to a directional compression airbag 2, which is connected to an air pump. The directional compression airbag 2 can be made of flexible materials such as rubber, latex, silicone, or plastic. The directional compression airbag 2 can be directionally inflated and contracted under the control of the air pump to compress and stop bleeding on the junction, blood vessels, femoral artery 5 or wounds of the trunk; both ends of the connecting belt 1 are respectively provided with pelvic fixing buckles 4 that can be buckled, and the pelvic fixing buckles 4 have a force indication function. The pelvic fixing buckles 4 at both ends tighten the corresponding fixed parts after being buckled; the connecting belt 1 can be made of flexible materials such as nylon, polyester, polyester fiber, cotton fabric, silk, or leather; the pelvic fixing buckle 4 can be made of metal alloys, high-strength plastics and other materials. The present invention adopts a connecting belt and a portable buckle to fix the pelvis, and adopts a directional compression airbag that can be directionally inflated and contracted under the control of an air pump to compress and stop bleeding on blood vessels or wounds at the junction and trunk. The multifunctional hemostatic device is easy to use and is suitable for various occasions such as accident first aid and emergency rescue. It can greatly reduce the mortality rate of hemorrhagic injuries in combat, and solves the technical defects of the existing technology that the injuries in the sudden accident environment are complicated, the function of the device is still relatively single, and it cannot be used for limb hemostasis and abdominal bandage hemostasis. When the limbs or trunk bleed, a limb tourniquet, a triangular bandage or an Israeli bandage is still needed.

[0026] Example 2: Based on Example 1, refer to Figure 2The directional compression airbag 2 is composed of an airbag 201, a top plate, a bottom plate, an air pipeline, a valve, and an air pump. The airbag 201 includes three or more airbag monomers. The gas channels between the airbag monomers are interconnected. The airbag 201 supports and pulls each other between the airbag monomers to achieve directional telescopic compression of the airbag, thereby achieving precise compression and hemostasis of blood vessels or wounds; the airbag 201 can be connected to the first air pump through the first inflation pipeline, and the first inflation pipeline and the first air pump use any one or a combination of an ordinary switch valve, an extrusion movable sealing ball valve, or a one-way gas check Luer valve; the top plate of the directional compression airbag 2 is a strip-shaped convex surface or a spherical convex surface. The present invention adopts 3 or more airbag monomers to form an airbag, which is directionally inflated and contracted under the action of the airbag to achieve precise compression and hemostasis of blood vessels or wounds; an air valve is provided between the directional compression airbag and the air pump to control the airflow; the directional compression airbag can be directionally inflated and contracted under the control of the first air pump; the first inflation pipeline can be connected to a pressure measuring device to detect the pressure in the compression airbag. The pressure measuring device can be a mechanical pressure gauge or an electronic pressure measuring module. The pressure measuring device ensures that the compression force is appropriate to avoid too little pressure, insufficient compression force, inability to stop bleeding, and too much pressure to injure tissues.

[0027] Example 3: Based on Example 2, refer to Figure 3, Pagoda-shaped airbag protection solution: the airbag 201 can be formed into a pagoda shape by fixing and stacking multiple sheet airbag monomers 203, and a vent is opened in the middle of each layer of sheet airbag monomer 203 to form an air circulation channel; a mechanical pressure gauge or an electronic pressure measuring gauge is provided on the first inflation pipeline. The airbag 201 can be integrally formed, or the layers of sheet airbag monomers 203 can be fixedly combined with each other, and the fixing method can be stacked together by bonding, welding, heat melting, sewing, etc. The present invention adopts an inflatable airbag designed as a multi-layer pagoda-shaped structure; it achieves a larger compression distance ratio, a larger stroke, high inflation efficiency, and flexible pressing, precise compression direction, and small space occupation, which solves the technical defects of the nested inflatable airbags in the prior art, which cannot be increased due to the space limitation of the maximum bottom circle diameter due to the nested structure; the pagoda-shaped pushing airbag structure is composed of each layer of sheet airbags bonded to each other over a large area, with a small gas channel left in the middle, and can be stacked with a large number of sheet airbags. Each layer of airbags is very thin, so that inflation, extension and compression can be achieved over a large distance. At the same time, since the sheet airbags are bonded to each other over a large area, the overall extension direction of the airbag is fixed, and the direction is not easily deflected when pressing an object after inflation, which facilitates directional fixed compression; the overall performance is excellent, simple and portable; a bottom plate can be installed at the bottom of the airbag, and a top plate can be installed at the top. The shape of the top plate can have various structures such as convex, concave card-shaped, and flat to adapt to pushing different end faces; airbags that can be extended and retracted in two directions can also be provided, which further improves the efficiency of pushing.

[0028] The fourth embodiment differs from the third embodiment in that the central cavity airbag protection scheme is adopted: the airbag 201 has a hollowed-out center portion, and the airbag units are interconnected by overlapping and connecting with each other through the outer periphery. Air passages are provided at the junctions to interconnect with each other. Because the airbag units are interconnected at the outer periphery, the airbag maintains a fixed direction during expansion and contraction, enabling directional expansion and contraction to stop bleeding. The present invention utilizes an inflatable airbag design in which the center portion of each airbag unit is hollowed out, and the airbag units are interconnected by overlapping and connecting with each other through the outer periphery. Each airbag layer is very thin, thereby achieving a large expansion and contraction distance during inflation and compression. At the same time, because the airbag layers are bonded to each other over a large area, the overall expansion direction of the airbag is fixed, and the direction is not easily deflected when compressing an object after inflation, facilitating directional fixed compression. The overall performance is excellent, and the airbag is compact and portable. The airbag can be arranged in multiple layers, such as five, six, seven, or eight layers, and the cross-sectional shape can be circular, elliptical, or polygonal.

[0029] Embodiment 5 differs from Embodiment 3 in that it utilizes a parallel airbag protection scheme: the airbag 201 is composed of multiple airbag units connected in parallel, interconnected via air passages on the base plate. After inflation, the expansion of each unit pulls and integrates the other, providing coordinated support, enabling the airbag body to achieve directional expansion and compression. The present invention utilizes an inflatable airbag designed as multiple airbag units connected in parallel. Each layer of airbags is very thin, allowing for a large range of expansion and contraction during inflation and compression. Furthermore, because the layers of airbags are bonded together over large areas, the overall expansion direction of the airbag is fixed. When compressed after inflation, the direction is less likely to deflect, facilitating directional, fixed compression. The airbag has excellent overall performance and is compact and portable. The airbag can be configured in multiple layers, such as five, six, seven, or eight layers, and its cross-section can be circular, elliptical, or polygonal.

[0030] Example 6: Based on Example 1, the connecting belt 1 is in the shape of a waist belt. Adhesives are provided on the sides of the connecting belt 1. The connecting belt 1 secures the directional compression airbag 2 via the adhesives, which can be either Velcro or snap-fit. The present invention utilizes adhesives to connect the connecting belt and the directional compression airbag, improving the waist belt design and facilitating their connection and removal, thus enabling the belt to function as an abdominal bandage.

[0031] Example 7: Based on Example 1, refer to Figure 4 The pelvic fixing buckle 4 includes a first connecting member 401 and a second connecting member 405; a hollow frame 402 is provided at the front end of the first connecting member 401, and a hollow accommodating chamber 403 is provided at the rear end of the first connecting member 401, and a sound-emitting part 404 is fixedly connected to the hollow accommodating chamber 403, and the second connecting member 405 is elastically connected to the hollow accommodating chamber 403 of the first connecting member 401; when the tension of the fixing belt gradually increases, the second connecting member 405 generates elastic displacement in the hollow accommodating chamber 403 of the first connecting member 401. When the tension reaches 130N~145N, the second connecting member 405 triggers the sound-emitting part 404 to generate sound, prompting the rescuer that the pelvis 3 is fixed in place. The present invention adopts a first connecting piece and a second connecting piece that are respectively connected to the pelvic fixing buckle at both ends of the connecting belt. After bypassing the groin at the junction for fixation, the femoral artery is pressurized by a directional compression airbag to stop bleeding, and the pelvis is tightened with a certain force through the pelvic fixing buckle, which solves the technical defects of the existing spring buckle that is large in size, complex in structure, requires punching holes in the connecting belt, reduces the strength of the connecting belt, and is inconvenient to use; the buckle structure is protected, and when the tension gradually increases, the elastic component generates elastic displacement in the empty accommodating cavity of the buckle. When the tension reaches 130N~145N, it triggers the generation of sound and color model to remind the rescuer that the pelvis is fixed in place.

[0032] Example 8: Based on Example 1, refer to Figure 5The wound hemostatic device protects the abdominal bandage and hemostasis function. A wound dressing 6 is provided between the connecting belt 1 and the wound, and the wound dressing 6 is a wound dressing sheet. The pelvic fixing buckle of the present invention is the same as the first embodiment, except that it also includes a wound dressing sheet and a connecting belt. After the wound dressing sheet is used to stop bleeding and disinfect the abdominal wound, it is then fixed and tightened with the connecting belt to provide an abdominal bandage function. The connecting belt can be expanded to a relatively wide size for bandaging abdominal wounds. The connecting belt can also be equipped with a separate airbag to achieve pressurized hemostasis.

[0033] Example 9: Based on Example 1, refer to Figure 6 The trauma hemostatic device protects the upper limb junction in a self-wrapping manner. A belt loop 7 is provided on the edge of the connecting belt 1. One end of the connecting belt 1 is connected to the pelvic fixing buckle 4. The other end of the connecting belt 1 is provided with a furry surface of a first Velcro on both sides. After the other end of the connecting belt 1 passes through the belt loop 7, it passes around the shoulder and through the belt loop 7 of the connecting belt 1 on the back of the human body and is bonded and fixed with the hook surface of the first Velcro; the directional compression airbag 2 is provided under the junction of the upper limbs on the front chest, and the directional compression airbag 2 and the connecting belt 1 are bonded and fixed by the second Velcro; the directional compression airbag 2 compresses the wound and is inflated to stop bleeding at the junction of the upper limbs. The directional compression airbag and pelvic fixing buckle involved in the present invention are the same as those of the first embodiment, with the difference being that a belt loop with a certain interval is provided on the edge of the connecting belt of the present invention, the first end of the connecting belt is connected to the pelvic fixing buckle, and Velcro is provided on both sides of the second end of the connecting belt. After the second end of the connecting belt passes through the pelvic fixing buckle, it goes around the shoulder and passes through the connecting belt loop on the back of the human body and is fixed with Velcro. The directional compression airbag is provided below the junction of the upper limbs and the directional compression airbag and the connecting belt are bonded together by Velcro. After the directional compression airbag compresses the wound and is inflated, it can stop bleeding at the junction of the upper limbs.

[0034] Example 10: Based on Example 1, refer to Figure 7 、 Figure 12The trauma hemostatic device is equipped with an auxiliary tourniquet to stop bleeding in the upper limbs. The auxiliary tourniquet can also be used to stop bleeding in the limbs. The edge of the connecting belt 1 is provided with an auxiliary tourniquet 9. The auxiliary tourniquet 9 forms a closed loop after being wound around. The auxiliary tourniquet 9 is also provided with a tightening device. The tightening device can tighten the closed loop. The tightening device adopts a combination of a stirring rod 10 and a stirring belt, or any one of a strip airbag 11. The directional compression airbag and pelvic fixation buckle involved in the present invention are the same as those in the first embodiment, except that the present invention also includes an auxiliary tourniquet. The auxiliary tourniquet can be used for stopping bleeding in the limbs. The auxiliary tourniquet can be wound around by itself to form a closed loop. The closed loop is fixed with Velcro. The auxiliary tourniquet can tighten the limbs in two ways. Method 1: The auxiliary tourniquet is provided with a stirring rod and a stirring belt. The stirring rod rotates the stirring belt to shrink the closed loop and tighten the limbs to stop bleeding. Method 2: The auxiliary tourniquet is provided with a strip airbag, which squeezes the limbs by inflating the airbag; it can be used to stop bleeding at the junction of the upper limbs.

[0035] The difference between the eleventh embodiment and the tenth embodiment is that, Figure 8 、 Figure 9 The edge of the connecting belt 1 is provided with a plurality of line belts 8, and the closed loop of the auxiliary tourniquet 9 is fixed to the line belt 8 by a third Velcro. The line belt 8 is parallel to the upper and lower edges of the connecting belt 1, or arranged at an angle with the upper and lower edges of the connecting belt 1, and the angle is 0° to 90°. The present invention adopts a method of providing a plurality of line belts on the edge of the connecting belt, and the first and second ends of the auxiliary tourniquet are provided with Velcro. When used for hemostasis at the junction of the upper limbs, the connecting belt passes around the thoracic part and is closed by a buckle. The auxiliary tourniquet is placed over the shoulder and is fixed to the line belt on the connecting belt by the Velcro provided at the first and second ends respectively. The line belt can be parallel to the upper and lower edges of the connecting belt or at a certain angle, for example, the angle is 0° to 90°. The line belt at this angle is more in line with the engineering design of the junction of the human body, which can make the auxiliary tourniquet and the connecting belt more firmly fixed at the upper and lower junctions of the human body, and is more conducive to achieving the hemostasis and fixation effect. The directional compression airbag is detachably arranged at the junction wound through an auxiliary tourniquet. When bleeding occurs at the junction of the upper and lower limbs, the airbag is inflated to compress the relevant bleeding blood vessels or tissues to stop bleeding.

[0036] Example 12: Based on Example 1, refer to Figure 10 The invention comprises a combined airbag and a top plate. The combined airbag is composed of multiple annular airbags 12, each of which has a gas passageway therebetween. The annular airbags 12 are circular, closed, inflatable airbags with a hollow center. The present invention utilizes multiple annular airbags to form a combined airbag. When inflated, the annular airbags have a hollow interior that can accommodate and protect exposed organs such as the intestines.

[0037] Example 13: Based on Example 12, the number of annular airbags 12 is 2-10. The annular airbags 12 are concentrically assembled in the axial direction, with the upper and lower surfaces abutting against each other. The annular airbags 12 are connected by either ultrasonic welding or bonding. The present invention utilizes multiple annular airbags concentrically assembled in the axial direction. When encountering an open abdominal injury, due to increased abdominal pressure, abdominal organs are often prolapsed or exposed. Or, in peacetime on-site emergency treatment or wartime frontline treatment, due to harsh environments, limited medical conditions and resources, and urgent emergency treatment, definitive surgery is often impossible. In this case, temporary closure of the open abdominal cavity is required. These temporary treatment methods require local materials and often use the "bowl-shaped lid" method to protect exposed organs. This method has poor compliance and sterility conditions and is highly susceptible to contamination. The annular airbag, when inflated, has a hollow interior that can accommodate and protect exposed organs such as the intestines.

[0038] Example 14: Based on Example 12, the top plate is provided at one end of the combined airbag. The present invention adopts the method of providing a top plate at one end of the combined airbag to uniformly apply pressure to the combined airbag.

[0039] Embodiment 15: Based on embodiment 12, the combined airbag is provided with an inflation port, which can be provided on any annular airbag 12. The present invention adopts the method of providing an inflation port on any annular airbag to inflate the annular airbag.

[0040] Example 16: Based on Example 12, refer to Figure 11 , further comprising a pressure plate 13, which is arranged at one end of the combined airbag opposite to the top plate. The present invention uses a pressure plate arranged at one end of the combined airbag opposite to the top plate to transmit the pressure of the airbag and apply pressure to the target part of the body.

[0041] Example 17: Based on Example 16, the pressure plate 13 includes a connecting seat and a pressure head, which contacts and cooperates with the combined airbag. The present invention uses the pressure head and the combined airbag in cooperation, and the airbag is inflated to perform a normal compression function.

[0042] In practice, compression hemostasis is a fundamental treatment for traumatic bleeding, particularly at the junction of the trunk and torso. Its effectiveness and simplicity are highly consistent with the requirements for precise, rapid, and controllable hemostasis. This invention develops a multifunctional hemostatic harness that can be used to stop bleeding at multiple locations, such as junctions, the trunk, and limbs, while also providing pelvic fixation, high reliability, and ease of use. It is suitable for various scenarios, including accident first aid and emergency rescue.

[0043] The above are only preferred embodiments of the present invention. It should be pointed out that for ordinary technicians in this technical field, several improvements and modifications can be made without departing from the principles of the present invention. These improvements and modifications should also be regarded as the scope of protection of the present invention.

Claims

1. A multifunctional trauma hemostatic device, comprising a connecting belt (1), characterized in that: The connecting belt (1) is detachably connected to the directional compression airbag (2), which is connected to an air pump. The directional compression airbag (2) can be inflated and contracted in a directional manner under the control of the air pump to compress and stop bleeding at the junction, blood vessels of the trunk, femoral artery (5) or wound; the two ends of the connecting belt (1) are respectively provided with pelvic fixing buckles (4) that can be fastened, and the pelvic fixing buckles (4) have a force indication function. The pelvic fixing buckles (4) at the two ends tighten the corresponding fixed parts after being fastened.

2. A multifunctional trauma hemostatic device according to claim 1, characterized in that: The directional compression airbag (2) is composed of an airbag (201), a top plate, a bottom plate, an air path pipeline, a valve, and an air pump. The airbag (201) includes three or more airbag monomers. The air channels between the airbag monomers are interconnected. The airbag (201) supports and pulls each other between the airbag monomers to achieve directional expansion and contraction compression of the airbag, thereby achieving precise compression and hemostasis of blood vessels or wounds. The airbag (201) can be connected to the first air pump through the first inflation pipeline. Any one or a combination of a common switch valve, a squeeze movable sealing ball valve, or a one-way gas check Luer valve is used between the first inflation pipeline and the first air pump. The top plate of the directional compression airbag (2) is a strip-shaped convex surface or a spherical convex surface.

3. A multifunctional trauma hemostatic device according to claim 2, characterized in that: The airbag (201) can be formed into a pagoda shape by fixing and stacking a plurality of sheet-like airbag monomers (203), each layer of the sheet-like airbag monomers (203) having an air vent in the middle to form an air circulation channel; a mechanical pressure gauge or an electronic pressure measuring gauge is provided on the first inflation pipeline; the airbag (201) can be integrally formed, or the layers of the sheet-like airbag monomers (203) can be fixedly combined with each other, and the fixing method can be stacking together by bonding, welding, heat melting, sewing, etc.

4. The multifunctional trauma hemostatic device according to claim 2, characterized in that: The middle part of each airbag monomer of the airbag (201) is hollowed out, and each airbag monomer is connected to each other by overlapping the peripheral part, and an air path channel is opened at the joint to connect with each other. Since the airbag monomers are connected to each other at the peripheral part, the direction of the airbag is fixed when it is expanded and contracted, and it can be directional and contracted to compress and stop bleeding.

5. The multifunctional trauma hemostatic device according to claim 2, characterized in that: The airbag (201) is composed of a plurality of airbag monomers connected in parallel, and the airbag monomers are interconnected via air passages on the bottom plate. After the airbag monomers are inflated, each airbag monomer expands, pulls and integrates each other, and coordinates and supports each other, so that the airbag body realizes a directional telescopic compression function.

6. The multifunctional trauma hemostatic device according to claim 2, characterized in that: The connecting belt (1) is in the shape of a waist belt, and an adhesive is provided on the side of the connecting belt (1). The connecting belt (1) fixes the directional compression airbag (2) via the adhesive, and the adhesive is either Velcro or buckle-type.

7. The multifunctional trauma hemostatic device according to claim 1, characterized in that: The pelvis fixing buckle (4) comprises a first connecting member (401) and a second connecting member (405); a hollow frame (402) is provided at the front end of the first connecting member (401), a hollow containing chamber (403) is provided at the rear end of the first connecting member (401), a sound-generating portion (404) is fixedly connected in the hollow containing chamber (403), and the second connecting member (405) is elastically connected in the hollow containing chamber (403) of the first connecting member (401); when the tension of the fixing belt gradually increases, the second connecting member (405) generates elastic displacement in the hollow containing chamber (403) of the first connecting member (401), and when the tension reaches 130N-145N, the second connecting member (405) triggers the sound-generating portion (404) to generate a sound, thereby prompting the rescuer that the pelvis (3) is fixed in place.

8. The multifunctional trauma hemostatic device according to claim 1, characterized in that: The edge of the connecting belt (1) is provided with a belt loop (7), one end of the connecting belt (1) is connected to the pelvis fixing buckle (4), and the other end of the connecting belt (1) is provided with the fur surface of the first Velcro on both sides. After the other end of the connecting belt (1) passes through the belt loop (7), it passes around the shoulder and passes through the belt loop (7) of the connecting belt (1) on the back of the human body in sequence, and then is bonded and fixed to the hook surface of the first Velcro; the directional compression airbag (2) is arranged below the junction of the upper limbs and the front chest, and the directional compression airbag (2) and the connecting belt (1) are bonded and fixed by the second Velcro; the directional compression airbag (2) compresses the wound and then inflates, so as to stop bleeding at the junction of the upper limbs.

9. The multifunctional trauma hemostatic device according to claim 1, characterized in that: An auxiliary tourniquet (9) is provided at the edge of the connecting belt (1), and the auxiliary tourniquet (9) forms a closed loop after being wound around once. A tightening device is also provided on the auxiliary tourniquet (9), and the tightening device can tighten the closed loop. The tightening device adopts a combination of a stirring rod (10) and a stirring belt, or any one of a strip air bag (11).

10. The multifunctional trauma hemostatic device according to claim 9, characterized in that: A plurality of line bands (8) are arranged at the edge of the connecting band (1); the closed loop of the auxiliary tourniquet (9) is fixed on the line bands (8) by means of a third Velcro strip; the line bands (8) are parallel to the upper and lower edges of the connecting band (1), or are arranged at an angle of 0° to 90° to the upper and lower edges of the connecting band (1).

11. The multifunctional trauma hemostatic device according to claim 1, characterized in that: The invention comprises a combined airbag and a top plate, wherein the combined airbag is composed of a plurality of annular airbags (12), and gas passages are provided between the annular airbags (12); the annular airbags (12) are annular closed inflatable airbags, and the middle area of ​​the annular airbags (12) is a hollow structure.

12. The multifunctional trauma hemostatic device according to claim 11, characterized in that: The number of the plurality of annular airbags (12) is 2-10. The annular airbags (12) are concentrically combined in the axial direction, and the upper and lower surfaces are fitted together. The connection between the annular airbags (12) is any one of ultrasonic welding or bonding. The top plate is arranged at one end of the combined airbag.

13. The multifunctional trauma hemostatic device according to claim 11, characterized in that: It also includes a pressure plate (13), which is arranged at an end of the combined airbag opposite to the top plate.

14. The multifunctional trauma hemostatic device according to claim 13, characterized in that: The pressure plate (13) comprises a connecting seat and a pressure head, and the pressure head is in contact with and used in conjunction with the combined air bag.

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