Multifunctional tourniquet

Abstract

The utility model belongs to the technical field of tourniquets, and particularly discloses a multifunctional tourniquet which comprises a placing box, a rotating shaft and a tourniquet body, the rotating shaft is rotatably mounted in the placing box, one end of the rotating shaft is connected with a power source for controlling the rotating shaft to rotate, one end of the tourniquet body is connected with the rotating shaft and wound on the rotating shaft, and the other end of the tourniquet body extends out of the placing box. A clamping groove connected with the clamping block in a clamping mode is formed in the opening, allowing the belt body to stretch out, of the containing box. According to the technical scheme, the belt body is driven to be automatically tightened through the power source and the rotating shaft, and manpower is not consumed.

Description

Technical Field

[0001] The utility model belongs to the technical field of tourniquets and relates to a multifunctional tourniquet. Background Art

[0002] When patients undergo surgery or disease treatment, they need to receive an injection of medication or have their blood drawn for testing. After the injection or blood drawing is completed, a tourniquet is required to stop the bleeding at the injection site. If the patient has a bleeding wound on the outside, a tourniquet is also required to stop the bleeding.

[0003] After stopping bleeding, traditional tourniquets need to be manually compressed to ensure the hemostatic effect, which is time-consuming and labor-intensive. Conventional tourniquets are usually fixed with tape, which is prone to falling off, thus affecting normal hemostasis.

[0004] In the prior art, although it is convenient to connect the buckle tourniquet into a ring shape, during the process of tightening the belt, the tightening method of the buckle tourniquet may cause the buckle tourniquet to be over-tightened (prone to skin and limb necrosis) or have a poor tightening effect (resulting in poor hemostasis effect).

[0005] In order to solve this technical problem, patent CN202320779624.2 discloses a tourniquet, including an adjustment shell, the inner wall of the adjustment shell is rotatably connected to a barrel, the inner wall of the adjustment shell near the inner circle of the barrel is rotatably connected to a rotating rod, the outer wall of the barrel is fixedly connected to a bandage, the rotating rod and the barrel are elastically connected by a torsion spring, and a limiting mechanism is provided on the outer wall of the rotating rod. The existing tourniquet rotates the circular sleeve, the circular sleeve drives the rotating rod to rotate, the rotating rod compresses the torsion spring and drives the barrel to rotate, and the bandage is tightened by the barrel, thereby adjusting the tension of the bandage, and the rotating rod is limited by the provided limiting block being stuck in the limiting groove, thereby increasing the stability of the bandage during operation, and no manual compression is required. However, the rotating rod still needs to be manually operated when rotating, which consumes manpower, and the degree of rotation also depends on the judgment of medical staff. There may still be the phenomenon of over-tightening or poor tightening effect, and the use effect is not good. Utility Model Content

[0006] The utility model aims to provide a multifunctional tourniquet, which can realize automatic tightening of the tourniquet without consuming manpower.

[0007] In order to achieve the above-mentioned purpose, the basic scheme of the utility model is: a multifunctional tourniquet, including a placement box, a rotating shaft and a belt body, the rotating shaft is rotatably installed in the placement box, one end of the rotating shaft is connected to a power source for controlling its rotation, one end of the belt body is connected to the rotating shaft and can be wound around the rotating shaft, the other end of the belt body extends out of the placement box, a card block is provided at this end of the belt body, and a card slot connected to the card block is provided at the opening of the placement box for the belt body to extend out.

[0008] The working principle and beneficial effect of this basic solution are: when using this technical solution, the belt can be wrapped around the patient's part to be hemostatic, and the card block on the belt can be connected with the card slot on the placement box, which is simple to operate. Then the rotation of the shaft is controlled by the power source, and one end of the belt is connected to the shaft and can be wrapped around the shaft. The rotation of the shaft can drive the belt to be wrapped around the shaft, so that the belt is automatically tightened without manual control, reducing manpower consumption. It can also adapt to people of different body shapes and can be adjusted at will.

[0009] Furthermore, it also includes a control button, which is installed on the outer wall of the placement box, and the output end of the control button is connected to the control end of the power source.

[0010] By pressing the control button, the power source can be controlled, making it more flexible to use.

[0011] Further, it also includes a control mechanism, which includes a pressure sensor and a pressure comparator;

[0012] The output end of the control button is connected to the start end of the pressure sensor, and the pressure sensor is installed on the inner side of one end of the belt body extending out of the placement box;

[0013] The output end of the pressure sensor is connected to the first input end of the pressure comparator through the first digital-to-analog conversion module, the second input end of the pressure comparator is connected to the pressure threshold memory, and the output end of the pressure comparator is connected to the stop control end of the power source.

[0014] When the control button outputs a tightening control signal, the pressure sensor starts to collect pressure information between the belt and the patient, and transmits it to the pressure comparator to determine whether the belt is tightened. When the collected pressure information value is greater than or equal to the pressure threshold, it means that the belt is tightened, and the pressure comparator outputs a control signal to the stop control end of the power source to control the belt to stop tightening. In this way, the mechanical equipment controls the tightening state of the belt to ensure that the belt tightening progress is appropriate and avoid over-tightening or poor tightening effect.

[0015] Furthermore, the control mechanism also includes a timer, a blood drawing alarm button, a blood drawing time comparator and a blood drawing alarm;

[0016] The timer is installed on the outer wall of the placement box, the start end of the timer is connected to the output end of the pressure comparator, and the output end of the timer is connected to the first input end of the blood drawing time comparator through the second digital-to-analog conversion module and the blood drawing normally open switch;

[0017] The blood drawing alarm button is arranged on the outer wall of the placement box, and the output end of the blood drawing alarm button is connected to the control end of the blood drawing normally open switch;

[0018] The second input end of the blood drawing time comparator is connected to the blood drawing time threshold memory, and the output end of the blood drawing time comparator is connected to the start end of the blood drawing alarm, and the blood drawing alarm is arranged on the outer wall of the placement box.

[0019] When the output terminal of the pressure comparator outputs a control signal to control the power source to stop, it indicates that the belt body is tightened. At this time, the timer is started to record the time when the belt body is tightened.

[0020] If the patient uses a tourniquet during blood drawing, a blood drawing alarm is required to prevent the tourniquet from being used for too long and causing adverse effects on the patient's body, or forgetting to remove the tourniquet due to negligence. Press the blood drawing alarm button, the blood drawing alarm button outputs a control signal to the control end of the blood drawing normally open switch, controls the blood drawing normally open switch to close, and connects the timer to the first input end of the blood drawing time comparator, and the timer transmits the timing information to the blood drawing time comparator.

[0021] The blood drawing time comparator compares the timing information collected by the timer with the blood drawing time threshold. When the collected timing information is greater than or equal to the blood drawing time threshold, the blood drawing time comparator outputs a control signal to the blood drawing alarm, and the blood drawing alarm sends an alarm message to indicate that the tourniquet has timed out and has not been removed.

[0022] Furthermore, the control mechanism also includes a hemostasis alarm button, a hemostasis time comparator and a hemostasis alarm;

[0023] The output end of the timer is connected to the first input end of the hemostasis time comparator through the third digital-to-analog conversion module and the hemostasis normally-open switch;

[0024] The hemostasis alarm button is arranged on the outer wall of the placement box, and the output end of the hemostasis alarm button is connected to the control end of the hemostasis normally open switch;

[0025] The second input end of the hemostasis time comparator is connected to the hemostasis time threshold memory, and the output end of the hemostasis time comparator is connected to the start end of the hemostasis alarm, and the hemostasis alarm is arranged on the outer wall of the placement box.

[0026] If the patient uses a tourniquet for fixed bandage, trauma hemostasis, etc., an alarm for the total hemostasis time is required to prevent the tourniquet from being used for too long and causing adverse effects on the patient's body, or forgetting to remove the tourniquet due to negligence.

[0027] At this time, press the hemostasis alarm button, which outputs a control signal to the control end of the hemostasis normally-open switch, controls the hemostasis normally-open switch to close, and connects the timer with the first input end of the hemostasis time comparator, and the timer transmits the timing information to the hemostasis time comparator.

[0028] The hemostasis time comparator compares the timing information collected by the timer with the hemostasis time threshold. When the collected timing information is greater than or equal to the hemostasis time threshold, the hemostasis time comparator outputs a control signal to the hemostasis alarm, and the hemostasis alarm sends an alarm message to indicate that the tourniquet has timed out and has not been removed.

[0029] Furthermore, it also includes a blood pressure sensor, a body temperature sensor, a pulse sensor, an acceleration sensor, a body motion sensor and a sound sensor, and the blood pressure sensor, body temperature sensor, pulse sensor, acceleration sensor, body motion sensor and sound sensor are all installed on the inner side of one end of the belt body extending out of the placement box.

[0030] Multiple sensors are set up to collect the patient's physical data to facilitate monitoring of the patient's physical condition.

[0031] Furthermore, the display screen is arranged on the outer wall of the placement box, and the output ends of the blood pressure sensor, body temperature sensor, pulse sensor, acceleration sensor, body motion sensor and sound sensor are all connected to the input end of the display screen.

[0032] A display screen is arranged on the placement box, and various relevant data of the patient's body collected are displayed on the display screen for easy viewing.

[0033] Furthermore, a pressure-relieving elastic layer is provided on the side of the belt body that contacts the human body.

[0034] The pressure-reducing elastic layer contacts the human body, increasing the comfort of the patient when using it. BRIEF DESCRIPTION OF THE DRAWINGS

[0035] Figure 1 It is a front view structural schematic diagram of the multifunctional tourniquet of the utility model;

[0036] Figure 2 The utility model is a schematic diagram of the structure of the multifunctional tourniquet in a bottom-up view.

[0037] The figure marks in the drawings of the specification include: placement box 1, rotating shaft 2, power source 3, belt body 4, card slot 5, opening 6, card block 7, control button 8, pressure sensor 9, timer 10, blood drawing alarm button 11, blood drawing alarm 12, hemostasis alarm button 13, hemostasis alarm 14, blood pressure sensor 15, body temperature sensor 16, pulse sensor 17, acceleration sensor 18, body motion sensor 19, sound sensor 20, display screen 21. DETAILED DESCRIPTION

[0038] The embodiments of the present invention are described in detail below, and examples of the embodiments are shown in the accompanying drawings, wherein the same or similar reference numerals throughout represent the same or similar elements or elements having the same or similar functions. The embodiments described below with reference to the accompanying drawings are exemplary and are only used to explain the present invention, and cannot be understood as limiting the present invention.

[0039] In the description of the present invention, it should be understood that the terms "longitudinal", "lateral", "up", "down", "front", "back", "left", "right", "vertical", "horizontal", "top", "bottom", "inside", "outside", etc., indicating orientations or positional relationships, are based on the orientations or positional relationships shown in the accompanying drawings, and are only for the convenience of describing the present invention and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation, and therefore should not be understood as a limitation on the present invention.

[0040] In the description of the present utility model, unless otherwise specified and limited, it should be noted that the terms "installation", "connection" and "connection" should be understood in a broad sense. For example, it can be a mechanical connection or an electrical connection, or it can be the internal connection of two components. It can be a direct connection or an indirect connection through an intermediate medium. For ordinary technicians in this field, the specific meanings of the above terms can be understood according to the specific circumstances.

[0041] The utility model discloses a multifunctional tourniquet. Figure 1 and Figure 2 As shown, it includes a placement box 1, a rotating shaft 2 and a belt body 4. The rotating shaft 2 is rotatably installed in the placement box 1, and the surface corners of the placement box 1 can be set to be arc-shaped. One end of the rotating shaft 2 is connected to a power source 3 for controlling its rotation. The power source 3 can be a motor. The motor is fixedly installed (such as bonding, welding, riveting, etc.) in the placement box 1, and the end of the rotating shaft 2 is fixedly connected to the output shaft of the motor (such as pin connection, welding, etc.).

[0042] One end of the belt body 4 is connected to the rotating shaft 2 (such as by bonding, binding, buckling, etc.) and can be wound around the rotating shaft 2. The other end of the belt body 4 extends out of the placement box 1, and a clamping block 7 is provided at this end of the belt body 4. A clamping groove 5 clamped with the clamping block 7 is provided at an opening 6 of the placement box 1 for the belt body 4 to extend out.

[0043] When in use, the belt body 4 can be wrapped around the patient's part to be hemostatic, and then the clamping block 7 on the belt body 4 is clamped with the clamping slot 5 on the placement box 1, which is also convenient for disassembly. The rotation of the shaft 2 is controlled by the power source 3, and one end of the belt body 4 is connected to the shaft 2 and can be wrapped around the shaft 2. The rotation of the shaft 2 can drive the belt body 4 to be wrapped around the shaft 2, so that the belt body 4 is automatically tightened, without manual control, and reducing manpower consumption.

[0044] In a preferred embodiment of the present invention, the multifunctional tourniquet further comprises a control button 8, which is mounted (such as by bonding, welding, etc.) on the outer wall of the placement box 1, and the output end of the control button 8 is electrically connected to the control end of the power source 3. When the belt body 4 needs to be tightened, by pressing the control button 8, the control button 8 outputs a control signal to the control end of the power source 3, thereby controlling the power source 3, driving the rotating shaft 2 to rotate, and gradually winding the belt body 4 around the rotating shaft 2, thereby tightening the belt body 4.

[0045] In a preferred embodiment of the present invention, the multifunctional tourniquet further comprises a control mechanism, which comprises a pressure sensor 9 (such as 26PC01 SMT, ZCH304, etc.) and a pressure comparator. The comparator in the present invention is preferably but not limited to LM324 and LM339.

[0046] The output end of the control button 8 is electrically connected to the start end of the pressure sensor 9, and the pressure sensor 9 is installed (such as embedded, welded, bonded, etc.) on the inner side of the end of the belt body 4 extending out of the placement box 1. The output end of the pressure sensor 9 is electrically connected to the first input end of the pressure comparator through the first digital-to-analog conversion module, the second input end of the pressure comparator is electrically connected to the pressure threshold memory (such as 24CXX series, 93CXX series, etc.), and the output end of the pressure comparator is electrically connected to the stop control end of the power source 3.

[0047] When the control button 8 outputs a tightening control signal, the pressure sensor 9 is activated to collect the pressure information between the belt body 4 and the patient, and transmit it to the pressure comparator to determine whether the belt body 4 is tightened. When the collected pressure information value is greater than or equal to the pressure threshold, it means that the belt body 4 is tightened, and the pressure comparator outputs a control signal to the stop control end of the power source 3 to control the belt body 4 to stop tightening. In this way, the mechanical equipment controls the tightening state of the belt body 4 to ensure that the tightening progress of the belt body 4 is appropriate, avoiding excessive tightening or poor tightening effect.

[0048] In a preferred embodiment of the present invention, the control mechanism also includes a timer 10, a blood drawing alarm button 11, a blood drawing time comparator and a blood drawing alarm 12. The timer 10 is preferably but not limited to T-2304RN. The alarm used in the present invention can be a buzzer, LED light, etc., for emitting sound and light signals.

[0049] The timer 10 is installed (such as bonding, welding, etc.) on the outer wall of the placement box 1, and the starting end of the timer 10 is electrically connected to the output end of the pressure comparator. The output end of the timer 10 is electrically connected to the first input end of the blood drawing time comparator through the second digital-to-analog conversion module and the blood drawing normally-open switch.

[0050] The blood drawing alarm button 11 is fixedly arranged (such as bonding, welding, etc.) on the outer wall of the placement box 1, and the output end of the blood drawing alarm button 11 is electrically connected to the control end of the blood drawing normally open switch. The second input end of the blood drawing time comparator is connected to the blood drawing time threshold memory, and the output end of the blood drawing time comparator is connected to the start end of the blood drawing alarm 12. The blood drawing alarm 12 is fixedly arranged (such as welding, riveting, etc.) on the outer wall of the placement box 1.

[0051] When the output terminal of the pressure comparator outputs a control signal to control the power source 3 to stop, it indicates that the belt body 4 is tightened. At this time, the timer 10 is started to record the time when the belt body 4 is tightened.

[0052] If the patient uses a tourniquet during blood drawing, a blood drawing alarm is required to prevent the tourniquet from being used for too long and causing adverse effects on the patient's body, or forgetting to remove the tourniquet due to negligence. The blood drawing alarm button 11 is pressed, and the blood drawing alarm button 11 outputs a control signal to the control end of the blood drawing normally open switch, controlling the blood drawing normally open switch to close, so that the timer 10 is connected to the first input end of the blood drawing time comparator, and the timer 10 transmits the timing information to the blood drawing time comparator.

[0053] The blood drawing time comparator compares the timing information collected by the timer 10 with the blood drawing time threshold. When the collected timing information is greater than or equal to the blood drawing time threshold, the blood drawing time comparator outputs a control signal to the blood drawing alarm 12, and the blood drawing alarm 12 issues an alarm message, indicating that the tourniquet has timed out and has not been removed.

[0054] In a preferred embodiment of the utility model, the control mechanism further includes a hemostasis alarm button 13, a hemostasis time comparator and a hemostasis alarm 14, and the output end of the timer 10 is electrically connected to the first input end of the hemostasis time comparator through a third digital-to-analog conversion module and a hemostasis normally-open switch. The hemostasis alarm button 13 is fixedly arranged (such as bonding, welding, etc.) on the outer wall of the placement box 1, and the output end of the hemostasis alarm button 13 is electrically connected to the control end of the hemostasis normally-open switch.

[0055] The second input end of the hemostasis time comparator is electrically connected to the hemostasis time threshold memory, and the output end of the hemostasis time comparator is electrically connected to the start end of the hemostasis alarm 14. The hemostasis alarm 14 is fixedly arranged (such as bonding, welding, riveting, etc.) on the outer wall of the placement box 1.

[0056] If the patient uses a tourniquet for fixed bandage, trauma hemostasis, etc., an alarm for the total hemostasis time is required to prevent the tourniquet from being used for too long and causing adverse effects on the patient's body, or forgetting to remove the tourniquet due to negligence.

[0057] At this time, the hemostasis alarm button 13 is pressed, and the hemostasis alarm button 13 outputs a control signal to the control end of the hemostasis normally-open switch, controlling the hemostasis normally-open switch to close, so that the timer 10 is connected to the first input end of the hemostasis time comparator, and the timer 10 transmits the timing information to the hemostasis time comparator.

[0058] The hemostasis time comparator compares the timing information collected by the timer 10 with the hemostasis time threshold. When the collected timing information is greater than or equal to the hemostasis time threshold, the hemostasis time comparator outputs a control signal to the hemostasis alarm 14, and the hemostasis alarm 14 issues an alarm message, indicating that the tourniquet has timed out and has not been removed.

[0059] In a preferred embodiment of the present invention, the multifunctional tourniquet also includes a blood pressure sensor 15 (such as LWP040-S, etc.), a body temperature sensor 16 (such as PT100, etc.), a pulse sensor 17 (such as MAX30102 blood oxygen concentration wrist heart rate pulse detection heartbeat sensor module, MAX30102 pulse heart rate blood oxygen sensor, etc.), an acceleration sensor 18 (preferably but not limited to EGCS, P900, etc.), a speed sensor (such as SS40A Hall speed sensor, HKT30 speed sensor, etc.), a body motion sensor 19 (such as HW-WO9, etc.), a respiratory rate sensor (existing equipment such as a respiratory monitor in an ECG vital signs monitor, a piezoelectric film sensor (such as VSP-505260T), etc.) and a sound sensor 20 (such as DPBR-ZS1, MeToo l KS08, etc.).

[0060] The blood pressure sensor 15, speed sensor, body temperature sensor 15, pulse sensor 17, acceleration sensor 18, body motion sensor 19, respiratory rate sensor and sound sensor 20 are all installed on the inner side of the end of the belt body 4 extending out of the placement box 1 (the connection method of embedding on the belt body 4 can be adopted). When the belt body 4 is tightened, the sensor can contact the human body to realize information collection. Multiple sensors are set to collect the patient's physical data (such as blood pressure, pulse, respiratory rate, exercise volume, body motion data, sound signals related to physical activities, etc.), which is convenient for monitoring the patient's physical condition.

[0061] Preferably, the display screen 21 is fixedly arranged (such as bonding, riveting, etc.) on the outer wall of the placement box 1, and the output ends of the blood pressure sensor 15, the body temperature sensor 15, the pulse sensor 17, the acceleration sensor 18, the speed sensor, the breathing rate sensor, the body motion sensor 19 and the sound sensor 20 are all electrically connected to the input end of the display screen 21. The display screen 21 is arranged on the placement box 1, and the collected relevant data of the patient's body are displayed on the display screen 21 for easy viewing.

[0062] In a preferred embodiment of the present invention, a pressure relief elastic layer (not shown) is provided on the side of the belt body 4 that contacts the human body. The pressure relief elastic layer can be made of materials such as elastic rubber, and the pressure relief elastic layer contacts the human body to increase the comfort of the patient when using it.

[0063] In the description of this specification, the description with reference to the terms "one embodiment", "some embodiments", "example", "specific example", or "some examples" means that the specific features, structures, materials or characteristics described in conjunction with the embodiment or example are included in at least one embodiment or example of the utility model. In this specification, the schematic representation of the above terms does not necessarily refer to the same embodiment or example. Moreover, the specific features, structures, materials or characteristics described can be combined in any one or more embodiments or examples in a suitable manner.

[0064] Although the embodiments of the present invention have been shown and described, those skilled in the art will appreciate that various changes, modifications, substitutions and variations may be made to the embodiments without departing from the principles and spirit of the present invention, and that the scope of the present invention is defined by the claims and their equivalents.

Claims

1. A multifunctional tourniquet, characterized in that: The utility model comprises a placing box, a rotating shaft and a belt body, wherein the rotating shaft is rotatably installed in the placing box, one end of the rotating shaft is connected to a power source for controlling its rotation, one end of the belt body is connected to the rotating shaft and can be wound around the rotating shaft, and the other end of the belt body extends out of the placing box, a clamping block is arranged at this end of the belt body, and a clamping slot connected with the clamping block is arranged at the opening of the placing box for the belt body to extend out.

2. The multifunctional tourniquet according to claim 1, characterized in that: It also includes a control button, which is installed on the outer wall of the placement box, and the output end of the control button is connected to the control end of the power source.

3. The multifunctional tourniquet according to claim 2, characterized in that: Also included is a control mechanism, the control mechanism including a pressure sensor and a pressure comparator; The output end of the control button is connected to the start end of the pressure sensor, and the pressure sensor is installed on the inner side of one end of the belt body extending out of the placement box; The output end of the pressure sensor is connected to the first input end of the pressure comparator through the first digital-to-analog conversion module, the second input end of the pressure comparator is connected to the pressure threshold memory, and the output end of the pressure comparator is connected to the stop control end of the power source.

4. The multifunctional tourniquet according to claim 3, characterized in that: The control mechanism also includes a timer, a blood drawing alarm button, a blood drawing time comparator and a blood drawing alarm; The timer is installed on the outer wall of the placement box, the start end of the timer is connected to the output end of the pressure comparator, and the output end of the timer is connected to the first input end of the blood drawing time comparator through the second digital-to-analog conversion module and the blood drawing normally open switch; The blood drawing alarm button is arranged on the outer wall of the placement box, and the output end of the blood drawing alarm button is connected to the control end of the blood drawing normally open switch; The second input end of the blood drawing time comparator is connected to the blood drawing time threshold memory, and the output end of the blood drawing time comparator is connected to the start end of the blood drawing alarm, and the blood drawing alarm is arranged on the outer wall of the placement box.

5. The multifunctional tourniquet according to claim 4, characterized in that: The control mechanism also includes a hemostasis alarm button, a hemostasis time comparator and a hemostasis alarm; The output end of the timer is connected to the first input end of the hemostasis time comparator through the third digital-to-analog conversion module and the hemostasis normally-open switch; The hemostasis alarm button is arranged on the outer wall of the placement box, and the output end of the hemostasis alarm button is connected to the control end of the hemostasis normally open switch; The second input end of the hemostasis time comparator is connected to the hemostasis time threshold memory, and the output end of the hemostasis time comparator is connected to the start end of the hemostasis alarm, and the hemostasis alarm is arranged on the outer wall of the placement box.

6. The multifunctional tourniquet according to claim 1, characterized in that: It also includes a blood pressure sensor, a body temperature sensor, a pulse sensor, an acceleration sensor, a body motion sensor and a sound sensor, and the blood pressure sensor, body temperature sensor, pulse sensor, acceleration sensor, body motion sensor and sound sensor are all installed on the inner side of one end of the belt body extending out of the placement box.

7. The multifunctional tourniquet according to claim 6, characterized in that: It also includes a display screen, which is arranged on the outer wall of the placement box, and the output ends of the blood pressure sensor, body temperature sensor, pulse sensor, acceleration sensor, body movement sensor and sound sensor are all connected to the input end of the display screen.

8. The multifunctional tourniquet according to claim 1, characterized in that: A pressure-reducing elastic layer is provided on the side of the belt body that contacts the human body.

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