Medical service emergency limb rescue and hemostasis equipment

Abstract

The application belongs to the technical field of medical equipment and discloses a medical service emergency limb rescue hemostasis equipment, which comprises a base body, a bandage, a fixed groove body, a first motor, an air pump, a control display center, a rack, an air cylinder and a hemostasis sponge connected with the base body, the bandage is provided with magic tape, the fixed groove body is provided with a sliding groove, the output shaft of the first motor is connected with an eccentric cam and a straight gear, the rack is connected with a linkage box body, the linkage box body is connected with a second motor and a linkage arm, the linkage arm is connected with a linkage plate, the linkage plate is connected with a squeezing air bag, and the air cylinder is connected with an inflation connecting rod. The first motor is used for controlling the horizontal position of the linkage plate and the filling state of the squeezing air bag, the second motor is used for controlling the relative angle of the linkage plate and the squeezing air bag, and the air pump is used for controlling the inflation state of the pressing air bag. The rescue hemostasis equipment has a wide application range, the squeezing and pressing simultaneously act on the wound, the hemostasis effect can be ensured, and the recovery effect of the wound can be improved.

Description

TECHNICAL FIELD

[0001] The present application relates to the technical field of medical equipment, in particular to an emergency limb rescue hemostasis equipment for medical service. BACKGROUND

[0002] Limb trauma is one of the most common war injuries on the battlefield, which is often seen in battlefield situations such as explosion, explosion injury, gunshot, heavy object extrusion, sharp instrument disconnection, burn injury, etc. If the wounded cannot receive timely assistance after limb trauma bleeding, they may die of excessive bleeding. According to statistics, about 2 / 3 of all injuries of surviving wounded are limb injuries. If timely pre-hospital care can be provided on the scene, the mortality of the wounded can be effectively reduced. Specifically, if medical intervention can be obtained within 1 hour, the focus of treatment is to control bleeding, which can significantly improve the treatment effect and reduce the infection of the limb trauma site. However, if the delay is 12 hours or even 24 hours, the risk of infection at the trauma site will be significantly increased, and even the life of the wounded will be directly affected.

[0003] At present, the hemostasis rescue measures for limb trauma mostly use hemostatic forceps or artificial pressing for hemostasis. However, due to the difficulty in using hemostatic forceps, it is easy to increase the rescue difficulty of medical personnel, and if the professional level of the rescuer is low, it is also easy to reduce the progress of patient rescue, and even affect the healing of the wound; the artificial pressing method is time-consuming and labor-intensive, which is not conducive to the medical staff to take suture treatment and other rescue measures for the wound; in addition, the conventional use of bandage to bind the end of the limb cannot press the local part of the end of the limb for hemostasis, and often needs to be wound for many turns, which can achieve the purpose of hemostasis to a certain extent, but it is easy to damage other healthy blood vessels, which is not conducive to the subsequent rehabilitation of the patient, and it is difficult to quickly deploy and use in the emergency rescue scene. SUMMARY

[0004] The present application aims to provide an emergency limb rescue hemostasis equipment for medical service, which uses a first motor to control the horizontal position of the linkage plate and the inflation state of the compression air bag, uses a second motor to control the relative angle of the linkage plate and the compression air bag, and uses a gas pump to control the inflation state of the pressing air bag, so that the whole rescue hemostasis equipment can adapt to different limb lengths and trauma conditions, and the compression and pressing act on the wound at the same time, which can not only ensure the hemostasis effect, but also improve the recovery effect of the wound. The problems in the background art are solved.

[0005] In order to achieve the above-mentioned purpose, the present application provides the following technical scheme:

[0006] The utility model provides a kind of medical service emergency limb rescue hemostatic equipment, including base, the base is connected with bandage, first motor, air pump, pressing air bag, control display center, rack and inflation cylinder, the bandage is used for the binding or fixing of rescue hemostatic equipment;The output shaft of the first motor is fixedly connected with eccentric cam and straight gear meshing with rack, the rack is slidably connected with the base, the rack is fixedly connected with linkage box body slidably connected with the base, the linkage box body is connected with second motor, the output shaft of the second motor is connected with linkage arm by transmission assembly, the linkage arm is rotatably connected with the linkage box body, the linkage arm is fixedly connected with linkage plate, the lower side of the linkage plate is connected with extrusion air bag;The inflation cylinder is fixedly connected with the base, the operating end of the inflation cylinder is fixedly connected with inflation connecting rod, the end of the inflation connecting rod away from inflation cylinder is slidably abutted with the eccentric cam, the air outlet of the inflation cylinder is communicated with the extrusion air bag by pipe;The pressing air bag is connected on the lower side of the base, the air pump is connected with the pressing air bag and controls its fullness state;The control display center is electrically connected with the first motor, air pump and second motor and controls its operation.

[0007] Further, the bandage is an elastic band, and the bandage is divided into two groups; two groups of the bandage are respectively arranged on the left and right sides of the base, and the bandages on the left and right sides are respectively provided with magic tapes that cooperate with each other.

[0008] Further, the base is fixedly connected with a fixed groove body, the fixed groove body is provided with a sliding groove, the linkage box body is slidably connected with the sliding groove, and the linkage box body is arranged on the outer side of the base.

[0009] Further, the fixed groove body, air pump, linkage arm, linkage plate, second motor, extrusion air bag, rack and linkage box body are two pieces, and two pieces of the fixed groove body, two air pumps, two linkage arms, two linkage plates, two second motors, two extrusion air bags and two linkage box bodies are mirror-symmetrically arranged with the vertical central plane of the base as a reference plane, two racks are mirror-symmetrically arranged with the horizontal central plane of the base as a reference plane, and the two racks are respectively connected with the two linkage box bodies on the left and right sides one by one.

[0010] Further, the circuit connection mode of the first motor and the second motor is parallel connection; the circuit connection mode of the second motor and the air pump is series connection.

[0011] Further, the annular flange of the eccentric cam is provided with a cam groove, the inflation connecting rod is provided with a sliding part, and the sliding part is slidably arranged on the inner side of the cam groove.

[0012] Further, the transmission assembly is a bevel gear assembly, the bevel gear assembly comprises a driving bevel gear and a driven bevel gear which are meshed with each other, and the driving bevel gear and the driven bevel gear are arranged on the inner side of the linkage box body; the driving bevel gear is fixedly connected with the output shaft of the second motor, and the driven bevel gear is fixedly connected with the rotating shaft of the linkage arm.

[0013] Further, the lower side of the pressing air bag is detachably connected with a hemostatic sponge.

[0014] Further, the hemostatic sponge is prepared by chemically cross-linking chitosan and graphene oxide, and is obtained by freeze-drying to obtain a chitosan cross-linked graphene oxide composite sponge.

[0015] Further, the control display center is provided with a timer and a display panel, the timer is used for recording the hemostatic time; and the display panel is used for displaying the working states of the first motor, the air pump, the second motor and the timer.

[0016] The principle and beneficial effects of the technical scheme are as follows:

[0017] 1. The emergency medical service limb rescue hemostasis equipment provided by the application, a base body connecting bandage fixes and binds the whole rescue hemostasis equipment and the limb of a patient; an eccentric cam and a straight gear are fixedly connected to the output shaft of a first motor, the eccentric cam and the straight gear rotate together with the output shaft of the first motor when the first motor operates, the base body is slidingly connected with a rack that is in mesh with the straight gear, the rack slides relative to the base body under the action of the straight gear, the rack is fixedly connected with a linkage box body, the linkage box body moves with the rack, the linkage box body is connected with a second motor, the output shaft of the second motor is connected with a linkage arm through a transmission assembly, the linkage arm rotates under the action of the transmission assembly when the second motor is started, the lower side of the linkage arm is connected with a linkage plate, the lower side of the linkage plate is connected with a squeeze air bag, the linkage arm rotates to drive the linkage plate to rotate, so that the angle of the linkage plate relative to the linkage box body and / or the base body changes; the operating end of an inflation connecting rod slidingly abuts against the eccentric cam and is connected with an inflation cylinder, the gas outlet end of the inflation cylinder is communicated with the squeeze air bag, the rotation of the eccentric cam drives the periodic movement of the operating end of the inflation cylinder to inflate the squeeze air bag on the lower side of the linkage plate to make it expand, the base body is further connected with a pressing air bag and a gas pump that controls the inflation state of the pressing air bag, a control display center controls the operating state of the first motor, the gas pump and the second motor. When the first motor operates, the linkage plate moves horizontally relative to the base body under the action of the straight gear, the rack, the linkage box body, the transmission assembly and the linkage arm, so as to realize the adjustment of the length (adapt to different wound length / area) of the whole rescue hemostasis equipment, and at the same time, the squeeze air bag is inflated under the action of the eccentric cam, the inflation connecting rod, the inflation cylinder and the catheter to extrude the left and right sides of the wound to the middle side; when the second motor operates, the linkage plate and the squeeze air bag rotate relative to the linkage box body and / or the base body under the action of the transmission assembly and the linkage arm, to further contact and extrude the whole rescue hemostasis equipment to the wound position; when the gas pump operates, the pressing air bag is inflated to press the wound position to stop bleeding. That is, the rescue hemostasis equipment can be widely used, the length and angle of the hemostasis equipment can be adjusted according to different limb conditions and wound conditions, the squeeze air bag extrudes and presses the wound position to stop bleeding and extrudes the wound to close, the pressing air bag presses the wound position to stop bleeding, the limb hemostasis effect is good, and the recovery effect of the wound position is good.

[0018] 2. The emergency limb rescue hemostasis device provided by the application has the following advantages: the elastic band is used as the binding belt, and the magic tape is arranged on the left and right sides of the binding belt, so that the rescue hemostasis device is fixed on the patient's limb with good effect, high efficiency and good operation convenience; the fixed groove with a sliding groove is fixedly connected on the base body, the linkage box is slidably connected with the sliding groove, when the linkage box slides relative to the base body under the operation of the first motor, the sliding groove guides and limits the movement of the linkage box, so that the movement process of the linkage box is stable and uniform, and the adjusted position is accurate, thereby the length adjustment of the whole hemostasis device is accurate, the adjustment process is smooth, and the functionality of the whole device is stable; the fixed groove, the air pump, the linkage arm, the linkage plate, the second motor, the extrusion air bag, the rack and the linkage box are two pieces, and the two fixed grooves, the two air pumps, the two linkage arms, the two linkage plates, the two second motors, the two extrusion air bags and the two linkage boxes are mirror-symmetrically arranged with the vertical center plane of the base body as the reference plane, the two racks are mirror-symmetrically arranged with the horizontal center plane of the base body as the reference plane, and the front and rear racks are connected with the two linkage boxes on the left and right sides one by one, so that the left and right sides and the front and rear sides of the whole rescue hemostasis device are symmetrical, the relative movement (moving closer to each other or moving away from each other) is also symmetrical, and the mechanical properties of the whole device are good.

[0019] 3. The emergency limb rescue hemostasis device provided by the application has the following advantages: the circuit connection mode of the first motor and the second motor is parallel connection, so that the first motor and the second motor can be relatively independent and / or simultaneously operated, that is, the overall length of the whole rescue hemostasis device controlled by the first motor, the inflation state of the extrusion air bag and the relative angle of the linkage plate and the extrusion air bag controlled by the second motor can be independently and / or simultaneously adjusted, thereby improving the application range and hemostasis effect of the whole hemostasis device. The circuit connection mode of the second motor and the air pump is series connection, so that the second motor and the air pump must be simultaneously operated, that is, the relative angle of the linkage plate and the extrusion air bag controlled by the second motor and the inflation state of the pressing air bag controlled by the air pump are simultaneously adjusted, thereby realizing the extrusion and pressing at the same time, which guarantees the hemostasis effect and improves the recovery effect of the wound.

[0020] 4. The emergency limb rescue hemostasis device provided by the application has the following advantages: the cam groove is arranged on the annular flange of the eccentric cam, the inflation connecting rod is provided with a sliding part, the sliding part is slidably arranged on the inner side of the cam groove, the linkage relationship between the inflation connecting rod and the eccentric cam is guaranteed, the overall structure is compact and reliable, and the movement process is uniform and stable; the transmission assembly is a bevel gear assembly, the transmission precision is high, and the adjustable angle is large.

[0021] 5. This invention provides a medical emergency limb rescue hemostasis device, in which a hemostatic sponge made of chitosan and graphene oxide is connected to the lower side of the compression airbag. Chitosan has good biocompatibility and antibacterial activity, and its main hemostatic mechanism is to adsorb red blood cells, thereby promoting blood coagulation. Graphene oxide has strong platelet adhesion and activation ability, good water solubility, and its chemical structure is easy to modify, making it a promising new hemostatic material. By chemically cross-linking chitosan and graphene oxide, and by freeze-drying technology, a chitosan-crosslinked graphene oxide composite hemostatic sponge is obtained, which can simultaneously adsorb and activate red blood cells and platelets, improve the formation speed and strength of blood clots, and achieve hemostasis quickly, effectively, and safely. Attached Figure Description

[0022] Figure 1 This is a front view of a medical emergency limb rescue and hemostasis device according to the present invention;

[0023] Figure 2 for Figure 1 Sectional view of AA;

[0024] Figure 3 This is a side view of a medical emergency limb rescue and hemostasis device according to the present invention;

[0025] Figure 4 for Figure 3 Sectional view of BB;

[0026] Figure 5 This is a schematic diagram of the structure of a medical emergency limb rescue and hemostasis device according to the present invention.

[0027] The names of the corresponding labels in the attached diagram are:

[0028] 1. Base body, 2. Strap, 3. Fixing groove, 4. First motor, 5. Air pump, 6. Compression airbag, 7. Hemostatic sponge, 8. Linkage arm, 9. Linkage plate, 10. Second motor, 11. Compression airbag, 12. Control and display center, 13. Eccentric cam, 14. Spur gear, 15. Rack, 16. Slide groove, 17. Linkage box, 18. Inflatable connecting rod, 19. Inflator, 20. Driven bevel gear, 21. Driven bevel gear. Detailed Implementation

[0029] The present invention will now be described in further detail with reference to the accompanying drawings and embodiments:

[0030] like Figures 1 to 5 As shown, a medical emergency limb rescue hemostasis device includes a base 1. Both sides of the base 1 are fixedly connected with straps 2 and fixing grooves 3. The straps 2 are elastic bands used for binding or fixing the rescue hemostasis device. The straps 2 on the left and right sides are respectively provided with mutually cooperating Velcro. The fixing grooves 3 are provided with sliding grooves 16.

[0031] The upper side of the base body 1 is connected with a first motor 4, two air pumps 5 and a control display center 12, the inner side of the base body 1 is connected with two racks 15 and two air cylinders 19, the output shaft of the first motor 4 is fixedly connected with an eccentric cam 13 and a spur gear 14 which is meshed with the two racks 15 on the inner side of the base body 1, the two racks 15 are slidably connected with the base body 1, and the two racks 15 are respectively fixedly connected with linkage box bodies 17 which are arranged on the outer side of the base body 1, the linkage box bodies 17 are slidably connected with the sliding grooves 16 of the fixed groove body 3, the upper side of the linkage box body 17 is connected with a second motor 10, the output shaft of the second motor 10 is connected with a linkage arm 8 through a transmission assembly, the rotating shaft of the linkage arm 8 is rotatably connected with the linkage box body 17, the linkage arm 8 is fixedly connected with a linkage plate 9, and the lower side of the linkage plate 9 is connected with a squeeze air bag 11; wherein the transmission assembly is a bevel gear assembly, the bevel gear assembly comprises a driving bevel gear 20 and a driven bevel gear 21 which are meshed with each other, the driving bevel gear 20 and the driven bevel gear 21 are rotatably arranged on the inner side of the linkage box body 17, the linkage arm 8 is arranged on the outer side of the linkage box body 17, the driving bevel gear 20 is fixedly connected with the output shaft of the second motor 10, and the driven bevel gear 21 is fixedly connected with the rotating shaft of the linkage arm 8;

[0032] The two air cylinders 19 are fixedly connected with the base body 1, the operating ends of the two air cylinders 19 are respectively fixedly connected with air charging connecting rods 18, and the ends, away from the air cylinders 19, of the air charging connecting rods 18 are slidably abutted with the eccentric cam 13; wherein the annular flange of the eccentric cam 13 is provided with a cam groove, the air charging connecting rod 18 is provided with a sliding part which is slidably arranged in the inner side of the cam groove, and the gas outlet ends of the air cylinders 19 are communicated with the squeeze air bag 11 through a pipeline; the lower side of the base body 1 is connected with a pressing air bag 6, the lower side of the pressing air bag 6 is pasted with a hemostatic sponge 7, the hemostatic sponge 7 is composed of chitosan and graphene oxide by chemical crosslinking method, and is obtained by freeze-drying to be a chitosan crosslinked graphene oxide composite sponge, and the air pump 5 is connected with the pressing air bag 6 and controls the filling state thereof;

[0033] The control display center 12 is electrically connected with the first motor 4, the air pump 5 and the second motor 10 and controls the operation thereof; wherein the circuit connection mode of the first motor 4 and the second motor 10 is parallel connection, and the circuit connection mode of the second motor 10 and the air pump 5 is series connection; the control display center 12 is provided with a timer and a display panel, the timer is used for recording the hemostasis time, and the display panel is used for displaying the working states of the first motor 4, the air pump 5, the second motor 10 and the timer;

[0034] In addition, the two fixed groove bodies 3, the two air pumps 5, the two linkage arms 8, the two linkage plates 9, the two second motors 10, the two extrusion air bags 11 and the two linkage box bodies 17 are symmetrically arranged with the vertical central plane of the base body 1 as the reference plane, and the two racks 15 are symmetrically arranged with the horizontal central plane of the base body 1 as the reference plane, and the front and rear racks 15 are respectively connected with the left and right linkage box bodies 17 one by one.

[0035] The specific implementation process is as follows:

[0036] When using the rescue hemostasis device, first, according to the actual needs, the hemostatic sponge 7 is pasted on the lower side of the pressing air bag 6, then according to the limb condition of the patient, the wound position and the wound condition, the first motor 4 is started to preliminarily adjust the length of the entire hemostasis device, and then the entire rescue hemostasis device is fixed and bound with the patient's limb by using the binding belt 2, wherein the hemostatic sponge 7 abuts against the wound position; after the entire hemostasis device is fixed, the first motor 4 is started again according to the actual needs to adjust the left and right positions of the linkage plate 9, and finally the second motor 10 and the air pump 5 are started to make the extrusion air bag 11 rotate with the linkage plate 9, so as to extrude and hemostasis the wound position, and the pressing air bag 6 is inflated to press and hemostasis the wound position. In the process of hemostasis, the timer records the hemostasis time, and the display panel displays the extrusion and pressing force of the pressing hemostasis, so as to ensure the best hemostasis effect.

[0037] The binding belt 2 is selected as an elastic belt, and the magic tape is arranged on the left and right sides of the binding belt 2, so that the rescue hemostasis device is fixed on the patient's limb with good effect, high efficiency and good operation convenience; the linkage box body 17 is slidably connected with the sliding groove 16 of the fixed box body, when the linkage box body 17 slides relative to the base body 1 under the operation of the first motor 4, the sliding groove 16 guides and limits the movement of the linkage box body 17, so that the movement process of the linkage box body 17 is stable and uniform, and the adjusted position is accurate, thereby the length of the entire hemostasis device is accurately adjusted, the adjustment process is smooth, and the functionality of the entire device is stable; the circuit connection mode of the first motor 4 and the second motor 10 is parallel, so that the first motor 4 and the second motor 10 can be relatively independent and / or simultaneously operated, that is, the overall length of the entire rescue hemostasis device controlled by the first motor 4, the filling state of the extrusion air bag 11 and the relative angle between the linkage plate 9 and the extrusion air bag 11 controlled by the second motor 10 can be independently and / or simultaneously adjusted, thereby improving the application range and hemostasis effect of the entire hemostasis device. The circuit connection mode of the second motor 10 and the air pump 5 is series, so that the second motor 10 and the air pump 5 must be simultaneously operated, that is, the relative angle between the linkage plate 9 and the extrusion air bag 11 controlled by the second motor 10 and the filling state of the pressing air bag 6 controlled by the air pump 5 are simultaneously adjusted, thereby realizing extrusion and pressing at the same time, which not only ensures the hemostasis effect, but also improves the recovery effect of the wound.

[0038] In addition, the cam groove is formed on the annular flange of the eccentric cam 13, the inflation connecting rod 18 is provided with a sliding part which is slidably arranged at the inner side of the cam groove, so that the linkage between the inflation connecting rod 18 and the eccentric cam 13 is ensured, the overall structure is compact and reliable, and the movement is uniform and stable; the transmission assembly is a bevel gear assembly, the transmission precision is high, and the adjustable angle is large; the hemostatic sponge 7 made of chitosan and graphene oxide is connected to the lower side of the pressing air bag 6, the chitosan has good biocompatibility and antibacterial activity, and its main hemostatic mechanism is to adsorb red blood cells to promote blood coagulation; the graphene oxide has strong platelet adhesion and activation capacity, good water solubility, and its chemical structure is easy to modify, and it is a very potential new type of hemostatic material; the chitosan and the graphene oxide are compounded by a chemical cross-linking method, and a chitosan cross-linked graphene oxide composite hemostatic sponge 7 is obtained by a freeze-drying technology, which can adsorb and activate red blood cells and platelets at the same time, improve the formation speed and strength of blood clots, and quickly, efficiently and safely achieve hemostasis.

[0039] The above-mentioned is only the embodiment of the present application, and the specific technical solutions or common knowledge of the scheme are not described in detail. It should be pointed out that for those skilled in the art, without departing from the technical solutions of the present application, a number of modifications and improvements can be made, which should also be regarded as the protection scope of the present application, and these will not affect the effect and practicality of the present application. The protection scope of the present application should be subject to the content of its claims, and the specific embodiments and the like in the specification can be used to explain the content of the claims.

Claims

1. A medical service emergency limb rescue hemostasis device, characterized in that, The utility model provides a kind of emergency rescue device, including base, the base is connected with bandage, first motor, air pump, pressing air bag, control display center, rack and inflator, the bandage is used for the binding or fixation of rescue hemostatic device;The output shaft of the first motor is fixedly connected with eccentric cam and straight gear meshing with rack, the rack is slidably connected with the base, the rack is fixedly connected with linkage box body slidably connected with the base, the linkage box body is connected with second motor, the output shaft of the second motor is connected with linkage arm by transmission assembly, the linkage arm is rotatably connected with the linkage box body, the linkage arm is fixedly connected with linkage plate, the lower side of the linkage plate is connected with extrusion air bag;The inflator is fixedly connected with the base, the operating end of the inflator is fixedly connected with inflating connecting rod, the end of the inflating connecting rod away from the inflator is slidably abutted with the eccentric cam, the air outlet of the inflator is communicated with the extrusion air bag by pipe;The pressing air bag is connected on the lower side of the base, the air pump is connected with the pressing air bag and controls its fullness state;The control display center is electrically connected with the first motor, air pump and second motor and controls its operation; The base is fixedly connected with fixed groove body, the fixed groove body is provided with sliding groove, the linkage box body is slidably connected with the sliding groove, and the linkage box body is arranged outside the base. The fixed groove body, air pump, linkage arm, linkage plate, second motor, extrusion air bag, rack and linkage box body are two pieces, and the two fixed groove bodies, two air pumps, two linkage arms, two linkage plates, two second motors, two extrusion air bags and two linkage box bodies are mirror-symmetrically arranged with the vertical central plane of the base as reference plane, the two racks are mirror-symmetrically arranged with the horizontal central plane of the base as reference plane, and the front and rear racks are respectively connected with the two linkage box bodies on the left and right sides one by one.

2. The medical service emergency limb rescue and hemostasis device according to claim 1, characterized in that, The bandage is an elastic band, and the bandage is divided into two groups.

3. The medical service emergency limb rescue and hemostasis device according to claim 1, characterized in that, The circuit connection mode of the first motor and the second motor is parallel connection, and the circuit connection mode of the second motor and the air pump is series connection.

4. The medical service emergency limb rescue and hemostasis device according to claim 1, characterized in that, The annular flange of the eccentric cam is provided with cam groove, the inflating connecting rod is provided with sliding part, and the sliding part is slidably arranged in the inner side of the cam groove.

5. The medical service emergency limb rescue hemostasis device according to claim 1, characterized in that, The transmission assembly is a bevel gear assembly, the bevel gear assembly comprises driving bevel gear and driven bevel gear meshing with each other, and the driving bevel gear and the driven bevel gear are arranged in the inner side of the linkage box body. The driving bevel gear is fixedly connected with the output shaft of the second motor, and the driven bevel gear is fixedly connected with the rotating shaft of the linkage arm.

6. The medical service emergency limb rescue and hemostasis device according to claim 1, characterized in that, The lower side of the pressing air bag is detachably connected with hemostatic sponge.

7. The medical service emergency limb rescue and hemostasis device according to claim 6, characterized in that, The hemostatic sponge is composed of chitosan and graphene oxide by chemical crosslinking method, and is obtained by freeze-drying to obtain chitosan crosslinked graphene oxide composite sponge.

8. The medical service emergency limb rescue and hemostasis device according to claim 1, characterized in that, The control display center is provided with a timer and a display panel, the timer is used for recording the hemostasis time; the display panel is used for displaying the working states of the first motor, the air pump, the second motor and the timer.

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