Cold therapy dressing unit and burn wound anti-slip fixation device

Abstract

The present invention discloses a cold therapy external dressing unit and a burn wound anti-slip fixing device, the dressing unit comprises: a box body, a sealing sheet is installed on the top, the sealing sheet and the box body form a closed volume cavity, the sealing sheet is made of a flexible material, and the sealing sheet is higher than the top of the box body; the box body is provided with a first air hole and a second air hole that penetrate the box body; a constant pressure relief valve is installed in the first air hole; an on-off control valve is used to control the opening and closing of the second air hole; a water bag is installed above the box body and connected to the sealing sheet; the water bag is made of a flexible material; an air pipe is connected to the second air hole and is connected to an air supply device; the air pipe is used to supply air to the volume cavity. The burn wound anti-slip fixing device comprises a plurality of dressing units arranged in an arranged manner. The burn wound anti-slip fixing device according to the present invention can effectively fit the wound surface without squeezing the wound surface, effectively improves the patient's comfort, and is convenient for cooling the wound surface without causing wound infection.

Description

Technical Field

[0001] The present invention relates to the technical field of medical devices, and in particular to a cold therapy dressing unit and a burn wound surface anti-slip fixing device. Background Art

[0002] Cold therapy and wound dressing are the most important early treatment measures after burns. Among them, cold therapy is the most important first aid measure after skin burns. It has many advantages, including: (1) Immediate cold therapy after burns can effectively reduce the temperature of the wound, prevent further damage to the tissue by heat, help preserve the vitality of the stasis zone, and protect the remaining cells in the wound from further damage; (2) Cold therapy reduces oxygen consumption and metabolic rate, reduces the production of lactic acid in the tissue, and thus effectively relieves pain; (3) Cold therapy helps improve local blood circulation and reduces aerobic metabolism of the tissue; (4) Edema may occur in the local wound, adjacent non-burned areas, and even distant organs after burns. Timely cold therapy can help eliminate this edema and improve the patient's condition. Currently, commonly used cold therapy methods include running tap water flushing and ice compresses. However, after the wound is bandaged, it is impossible to flush the wound with tap water and cold therapy. In addition, in some special circumstances, such as first aid for wounded soldiers during wartime, the lack of running water or ice cubes due to on-site conditions will delay the timing of cold therapy and cannot avoid the deterioration of the wound.

[0003] Bandaging is another important measure for on-site emergency treatment after skin burns. It plays multiple roles in the early treatment of wounds, including compression to stop bleeding, reduce infection, protect wounds, relieve pain, etc., and runs through the entire treatment process of burn wounds. The traditional bandaging method is to cover the wound with gauze or foam dressings, and then fix it with a bandage from the distal end to the proximal end. If necessary, an elastic bandage or self-adhesive bandage is added to the outer layer for further bandaging and fixation. However, since the limbs are not complete cylinders and there are differences in the circumference of the proximal and distal ends, traditional bandaging is prone to bandage slippage, causing the inner dressing to detach from the wound. In addition, the existing dressings are thin and have no buffering effect. Patients are prone to bumping into hard materials, causing great pain and reduced comfort. Summary of the invention

[0004] The present invention aims to solve at least one of the technical problems existing in the prior art. To this end, the present invention proposes a cold therapy dressing unit, which can effectively fit the wound surface without squeezing the wound surface, can reduce the slippage of the gauze bandage, has a buffer structure, can reduce the pain caused by bumps to the patient, and is convenient for continuous cooling of the wound surface without causing wound infection, effectively improving the comfort of the patient.

[0005] The present invention also provides a burn wound surface anti-slipping fixing device having the above-mentioned cold therapy external dressing unit.

[0006] The cold therapy external dressing unit according to the first embodiment of the present invention comprises:

[0007] A box body, with a sealing sheet installed on the top, the sealing sheet and the box body forming a closed volume cavity, the sealing sheet is made of a flexible material, and the sealing sheet is higher than the top of the box body; the box body is provided with a first air hole and a second air hole penetrating the box body, the first air hole and the second air hole are both connected to the volume cavity;

[0008] A constant pressure relief valve, installed at the first air hole, for limiting the maximum pressure of the volume chamber;

[0009] an on-off control valve, installed at the second air hole, and used to control the opening and closing of the second air hole;

[0010] A water bag is installed above the box body and connected to the sealing sheet, and the sealing sheet is arranged between the water bag and the box body; the water bag is made of a flexible material, and the water bag defines a sealed accommodation space, and the accommodation space is filled with liquid;

[0011] An air pipe is communicated with the second air hole and is connected to an air supply device; the air pipe is used to supply air to the volume cavity.

[0012] The cold therapy external dressing unit according to the embodiment of the present invention has at least the following beneficial effects:

[0013] By setting a water bag, the water bag is used to contact the gauze of the patient's wound. The water bag itself has the ability to deform, and the containing cavity also has the ability to deform. When the water bag is compressed, the water bag will further compress the sealing plate to reduce the gas volume in the containing cavity, so that the water bag can better fit the wound and can greatly reduce the pressure on the patient's wound, thereby improving the patient's comfort; the trachea is connected to an air supply device, and the air supply device can supply cold air to the trachea, thereby reducing the temperature of the containing cavity, and then reducing the temperature of the water bag, and then the patient's wound is cooled by the water bag to inhibit the sweat secretion of the wound, which not only improves the patient's comfort but also does not cause infection to the wound; the periphery of the water bag is pressed against the wound through the volume cavity, which can effectively prevent the patient's gauze from slipping off; the setting of the box body, the volume cavity and the water bag can provide a buffer, thereby significantly reducing the pain suffered by the patient when bumped, and improving the patient's comfort.

[0014] According to some embodiments of the present invention, a projected area of ​​the water bag on the horizontal plane is larger than a projected area of ​​the sealing sheet on the horizontal plane.

[0015] According to some embodiments of the present invention, the edge of the water bag is connected to the sealing sheet via a connecting piece, and the connecting piece is made of a flexible material.

[0016] According to some embodiments of the present invention, a first connecting structure is provided at the first end of the box body in the length direction, and a second connecting structure matching the first connecting structure is provided at the second end in the length direction; the first connecting structure and the second connecting structure are both provided at the upper part of the box body.

[0017] According to some embodiments of the present invention, the on-off control valve includes a valve plate and a valve stem, the valve plate is installed in the second air hole, the valve stem is connected to the valve plate, and rotating the valve stem can drive the valve plate to rotate synchronously; the valve stem extends downward out of the second air hole.

[0018] According to some embodiments of the present invention, a first limit strip and a second limit strip arranged at intervals along the vertical direction are provided on one side in the width direction of the box body, and the second air hole is arranged between the first limit strip and the second limit strip; the air pipe is connected to the first limit strip and the second limit strip through a locking piece, the locking piece is sleeved on the air pipe, and the two ends of the locking piece are respectively connected to the first limit strip and the second limit strip.

[0019] According to the second aspect of the embodiment of the present invention, the burn wound anti-slip fixation device includes a plurality of the above-mentioned cold therapy external dressing units, and the plurality of cold therapy external dressing units are arranged in an array; the box bodies of the plurality of cold therapy external dressing units in the width direction are connected by a flexible part, the box bodies of the plurality of cold therapy external dressing units in the length direction are connected by the first connecting structure and the second connecting structure, and the trachea of ​​the plurality of cold therapy external dressing units in the width direction are connected.

[0020] According to some embodiments of the present invention, an air bag is provided between the adjacent cold therapy external dressing units in the width direction, the air bag is connected to the trachea, and the air bag is equipped with an air pressure control valve.

[0021] According to some embodiments of the present invention, a bandage is further included, and the bandage is connected to the bottom of the box body of multiple cold therapy external dressing units in the width direction.

[0022] According to some embodiments of the present invention, the box bodies of the plurality of cold therapy external dressing units are in one or more of a rectangular, triangular, trapezoidal, star-shaped, or irregular shape.

[0023] According to the burn wound anti-slipping and fixing device of the embodiment of the present invention, the number and structure of the cold therapy external dressing units can be flexibly configured to be suitable for bandaging various wounds, and the bandaging effect is good, the patient's wound can be protected, and the patient's comfort can be effectively improved; in addition, since the burn wound anti-slipping and fixing device includes the above-mentioned cold therapy external dressing unit, it also has at least all the beneficial effects of the cold therapy external dressing unit.

[0024] Additional aspects and advantages of the present invention will be given in part in the following description and in part will be obvious from the following description, or will be learned through practice of the present invention. BRIEF DESCRIPTION OF THE DRAWINGS

[0025] The present invention will be further described below with reference to the accompanying drawings and embodiments, wherein:

[0026] Figure 1 This is a schematic structural diagram of a cold therapy external dressing unit according to an embodiment of the first aspect of the present invention;

[0027] Figure 2 for Figure 1 The enlarged view of point A in the middle;

[0028] Figure 3 A cross-sectional view of a cold therapy external dressing unit according to an embodiment of the first aspect of the present invention;

[0029] Figure 4 It is a schematic structural diagram of a burn wound anti-slipping fixation device according to a second embodiment of the present invention;

[0030] Figure 5 It is a schematic diagram of the connection of two cold therapy external dressing units in the width direction.

[0031] Figure Number:

[0032] Box body 100, volume cavity 101, sealing sheet 110, first air hole 120, constant pressure relief valve 121, second air hole 130, on-off control valve 140, valve plate 141, valve stem 142, first connecting structure 150, second connecting structure 160, first limit strip 170, second limit strip 180, locking member 190;

[0033] Water bag 200;

[0034] Trachea 300;

[0035] Air bag 400, capillary tube 410;

[0036] Bandage 500. DETAILED DESCRIPTION

[0037] Embodiments of the present invention are described in detail below, examples of which 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.

[0038] In the description of the present invention, it should be understood that descriptions involving orientation, such as orientation or positional relationship indicated as up, down, etc., are based on the orientation or positional relationship shown in the drawings, and are only for the convenience of describing the present invention and simplifying the description, rather than indicating or implying 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.

[0039] In the description of the present invention, "a plurality" means more than two. If there is a description of "first" or "second", it is only used for the purpose of distinguishing technical features, and cannot be understood as indicating or implying relative importance or implicitly indicating the number of the indicated technical features or implicitly indicating the order of the indicated technical features.

[0040] In the description of the present invention, unless otherwise clearly defined, terms such as setting, installing, connecting, etc. should be understood in a broad sense, and technicians in the relevant technical field can reasonably determine the specific meanings of the above terms in the present invention based on the specific content of the technical solution.

[0041] The first embodiment of the present invention discloses a cold therapy external dressing unit. The second embodiment of the present invention discloses a burn wound anti-slipping fixing device. The burn wound anti-slipping fixing device includes a plurality of arranged cold therapy external dressing units. The burn wound anti-slipping fixing device is used to bandage and protect the patient's wound. The burn wound anti-slipping fixing device of this embodiment will not squeeze the patient's wound, thereby improving the patient's comfort. At the same time, it can also facilitate the cooling of the wound without causing wound infection. Figure 1 To Attachment Figure 5 The cold therapy external dressing unit of the first aspect of the embodiment and the burn wound anti-slip fixation device of the second aspect of the embodiment are described in detail.

[0042] In the embodiments of the present invention, referring to Figures 1 to 3As shown, the cold therapy external dressing unit includes a box body 100, which is hollow inside and open at the top, and a sealing sheet 110 is installed on the top of the box body 100, and the sealing sheet 110 and the box body 100 form a closed volume cavity 101; the volume cavity 101 is used for inflation, so the sealing sheet 110 and the box body 100 need to have the following characteristics: 1. The sealing sheet 110 is made of a flexible material, and when the volume cavity 101 is filled with gas, the sealing sheet 110 can expand and rise above the top of the box body 100; 2. The sealing sheet 110 is made of an airtight material to prevent the gas in the volume cavity 101 from escaping; 3. The sealing sheet 110 is sealed and connected to the box body 100, and the connection method of the sealing sheet 110 and the box body 100 can be bonding, fastener connection, etc., but it must be ensured that the gas does not escape from the connection between the sealing sheet 110 and the box body 100. The box body 100 has a certain elasticity, but the elasticity is poor. The box body 100 can be made of hard plastic, rubber or other materials; the box body 100 can prevent the patient from causing great pain and the risk of secondary injury to the wound surface due to bumps in daily life, especially in some special environments, such as ships, warehouses and other small spaces. Patients are more likely to bump when walking or working after the burn injury is bandaged, so the box body 100 can improve the patient's comfort and enhance the patient's mobility.

[0043] It is conceivable that the cold therapy external dressing unit of this embodiment can also be used for cold therapy of local swollen tissue caused by sprains and the like.

[0044] In an embodiment of the present invention, the box body 100 is provided with a first air hole 120 and a second air hole 130 which penetrate the box body 100, and the first air hole 120 and the second air hole 130 are both connected to the volume chamber 101; the first air hole 120 is installed with a constant-pressure relief valve 121, and the constant-pressure relief valve 121 is used to limit the maximum pressure of the volume chamber 101. When the pressure in the volume chamber 101 exceeds the set pressure of the constant-pressure relief valve 121, the constant-pressure relief valve 121 will open and relieve the pressure in the volume chamber 101. When the pressure in the volume chamber 101 drops below the set pressure of the constant-pressure relief valve 121, the constant-pressure relief valve 121 will close; the constant-pressure relief valve 121 can purchase existing technology according to actual conditions, and its working principle will not be repeated here. The second air hole 130 is equipped with an on-off control valve 140, which is used to control the opening and closing of the second air hole 130; the second control valve can adopt a butterfly valve, a stop valve or other structures, and a suitable valve can be selected according to the actual situation. The second air hole 130 is connected to the trachea 300, and the trachea 300 is connected to an air supply device, and the air supply device supplies air to the volume chamber 101 through the trachea 300. The air supply device can be manual or electric, and can be selected according to the actual situation. By supplying air to the volume chamber 101, the water bag 200 can be made to fit the wound surface more closely and apply partial pressure to the gauze wrapped on the wound surface, thereby increasing the friction between the gauze and the water bag 200, making the currently commonly used self-adhesive bandage not easy to slip off.

[0045] It should be noted that the pressure relief rate of the constant pressure relief valve 121 should not be less than the maximum rate at which the gas supply device supplies gas into the volume chamber 101 through the second air hole 130, so as to ensure that the volume chamber 101 will not rupture due to excessive pressure.

[0046] Further, see Figure 3 As shown, the first air hole 120 is preferably installed at the bottom of the box body 100, because the top of the box body 100 is used to contact the patient's wound surface, and the bottom of the box body 100 is in contact with the outside world. In order to facilitate pressure relief, it is preferred to set the first air hole 120 at the bottom of the box body 100, and two or more first air holes 120 can be set as a backup.

[0047] In an embodiment of the present invention, the cold therapy external dressing unit further includes a water bag 200, which is installed above the box body 100 and connected to the sealing sheet 110, and the sealing sheet 110 is arranged between the water bag 200 and the box body 100; the water bag 200 is made of a flexible material, and the water bag 200 defines a sealed accommodation space, and the accommodation space is filled with liquid, which can be water or other media. The function of the water bag 200 is to contact the wound surface of the patient, so the material of the water bag 200 needs to have good sealing performance and good deformation ability; the wound surface of the patient is generally coated with medicine first and then wrapped with gauze, and the upper surface of the water bag 200 is in contact with the gauze. By setting the water bag 200 in contact with the patient's wound surface, the water bag 200 itself has the ability to deform, and the accommodating cavity also has the ability to deform. When the patient's muscle movement causes the water bag 200 to be compressed, the water bag 200 will further compress the sealing sheet 110 to reduce the gas volume in the accommodating cavity, so that the water bag 200 can better fit the wound surface and can greatly reduce the pressure on the patient's wound surface, thereby improving the patient's comfort.

[0048] Furthermore, the volume of the liquid in the water bag 200 preferably accounts for 85% to 98% of the accommodation space. Such a design can ensure that the water bag 200 has better deformation ability and the water bag 200 can better fit the wound surface. The water bag 200 is used to fit the patient's wound surface instead of a gaseous medium because the liquid medium is not easily compressed and thus has better fit.

[0049] In an embodiment of the present invention, the edge of the water bag 200 is provided with a ring edge extending outward, and the ring edge is connected to the sealing sheet 110 through a connecting piece, and the connecting piece is made of a flexible material; for example, the connecting piece can be yarn to sew the water bag 200 and the sealing sheet 110 together; or, the connecting piece can also be a structure such as a tape.

[0050] It can be imagined that the gas supply device can supply normal temperature gas or low temperature gas into the volume chamber 101. If the gas supply device supplies low temperature gas into the volume chamber 101, the temperature of the volume chamber 101 can be reduced, and then the low temperature gas in the volume chamber 101 exchanges heat with the liquid in the water bag 200 to reduce the temperature of the liquid in the water bag 200, thereby achieving cooling of the wound by the water bag 200 and improving the comfort of the patient; in addition, since the water bag 200 is not in direct contact with the wound, the water bag 200 will not cause infection of the patient's wound; at the same time, in some air-stifling or high temperature environments, the stuffy wound environment can easily cause the skin around the wound to produce oil and sweat, which in turn causes the gauze to fall off easily. The water bag 200 can cool the wound, thereby reducing the secretion of oil and sweat from the skin around the wound, improving the comfort of the patient while also reducing the risk of gauze falling off.

[0051] In the embodiments of the present invention, referring to Figure 1 , Figure 3 As shown, the projected area of ​​the water bag 200 on the horizontal plane is larger than the projected area of ​​the sealing sheet 110 on the horizontal plane. Specifically, the projected area of ​​the water bag 200 on the horizontal plane is about 102% to 110% of the projected area of ​​the sealing sheet 110 on the horizontal plane. The material of the water bag 200 is a flexible material. Due to the characteristics of the liquid, the edge of the water bag 200 must be flatter than the middle position of the water bag 200, that is, the height of the edge of the water bag 200 in the vertical direction is lower; the same is true for the sealing sheet 110, so the edge position of the water bag 200 has a worse support effect on the patient's wound surface. If the patient's wound presses the edge position of the water bag 200, it may cause the wound surface to directly contact the box body 100, thereby causing greater pain to the patient; the burn wound anti-slip fixing device of the second aspect embodiment is composed of a plurality of cold therapy external dressing units arranged and combined, so setting the volume of the water bag 200 slightly larger can make the edges of the water bag 200 between the plurality of cold therapy external dressing units squeeze each other, thereby improving the support effect of the edge of the water bag 200 on the wound surface.

[0052] In the embodiment of the present invention, a first connection structure 150 is provided at the first end of the box body 100 in the length direction, and a second connection structure 160 matching the first connection structure 150 is provided at the second end in the length direction; the first connection structure 150 and the second connection structure 160 are both provided at the upper part of the box body 100. Figure 1 , Figure 3 As shown, the first connecting structure 150 and the second connecting structure 160 are provided to facilitate the connection of the multiple box bodies 100 and to enhance the stability of the connection between the multiple box bodies 100; since the sealing sheet 110 and the water bag 200 are both installed on the top of the box body 100, and the water bag 200 is used to contact the wound surface of the patient, the first connecting structure 150 and the second connecting structure 160 are provided on the upper part of the box body 100, so that the water bag 200 can better fit the wound surface.

[0053] In an embodiment of the present invention, the on-off control valve 140 includes a valve plate 141 and a valve stem 142. The valve plate 141 is installed in the second air hole 130. The valve stem 142 is connected to the valve plate 141. Rotating the valve stem 142 can drive the valve plate 141 to rotate synchronously, thereby realizing the on-off of the second air hole 130. The valve stem 142 extends downward out of the second air hole 130. Specifically, the side wall of the second air hole 130 is provided with a through hole for the valve stem 142 to pass through. As can be seen from the above, the top of the box body 100 is facing the patient's wound surface, so the bottom of the box body 100 is facing away from the patient's wound surface, so the valve stem 142 extends downward to facilitate the operation of the valve stem 142; refer to Figure 2 , Figure 3As shown, the end of the valve stem 142 is preferably flush with the bottom of the box body 100 or partially exceeds the bottom of the box body 100, and an auxiliary structure is preferably provided at the end of the valve stem 142 to facilitate the operation of the valve stem 142, such as increasing the volume of the end of the valve stem 142. The valve stem 142 is generally operated manually, and the initial state of the on-off control valve 140 is an open state, that is, in the initial state, the volume chamber 101 is connected to the air pipe 300 through the second air hole 130. The air pipe 300 is provided with an extension portion, and the extension portion of the air pipe 300 is sealed and connected to the second air hole 130.

[0054] In the embodiment of the present invention, a first limiting strip 170 and a second limiting strip 180 are arranged at intervals in the vertical direction on one side of the box body 100 in the width direction, and the second air hole 130 is arranged between the first limiting strip 170 and the second limiting strip 180; the air pipe 300 is connected to the first limiting strip 170 and the second limiting strip 180 through a locking member 190, and the locking member 190 is sleeved on the air pipe 300, and the two ends of the locking member 190 are respectively connected to the first limiting strip 170 and the second limiting strip 180. For details, refer to Figure 1 , Figure 2 As shown, the locking member 190 is used to fix the position of the air pipe 300 , thereby preventing the air pipe 300 from being disconnected from the second air hole 130 .

[0055] It is conceivable that the first limit strip 170 and the second limit strip 180 can also be arranged at the bottom of the box body 100, and then the second air hole 130 and the air pipe 300 are also arranged at the bottom of the box body 100, but the first limit strip 170 and the second limit strip 180 are both arranged on one side in the width direction of the box body 100, so that the air pipe 300 can be hidden, which is more aesthetically pleasing, and at the same time, the damage caused by the exposure of the air pipe 300 can be reduced.

[0056] Reference Figure 4 As shown, in the burn wound anti-slipping fixation device of the second aspect of the present invention, multiple arranged cold therapy external dressing units are important components of the burn wound anti-slipping fixation device of this embodiment, the box bodies 100 of the multiple cold therapy external dressing units in the width direction of the burn wound anti-slipping fixation device are connected by flexible parts, the box bodies 100 of the multiple cold therapy external dressing units in the length direction are connected by the first connecting structure 150 and the second connecting structure 160, and the trachea 300 of the multiple cold therapy external dressing units in the width direction are connected.

[0057] It should be noted that there is almost no spacing between adjacent cold therapy external dressing units connected by the first connection structure 150 and the second connection structure 160 in the length direction of the burn wound surface anti-slipping fixing device, and since the trachea 300 is installed on one side of the box body 100 in the width direction, there is a spacing between adjacent cold therapy external dressing units in the width direction of the burn wound surface anti-slipping fixing device, so the box bodies 100 of adjacent cold therapy external dressing units in the width direction are connected by flexible parts. The flexible part can be a rope, a cloth belt or other structures, and the flexible part has a certain elastic deformation ability.

[0058] Furthermore, the air pipes 300 of the multiple cold therapy external dressing units in the width direction are connected through a pipe connection structure, and the pipe connection structure preferably adopts a pipe body similar to a corrugated pipe. After the air pipes 300 of the multiple cold therapy external dressing units in the width direction are connected, multiple long branches are formed; a main air pipe is provided at one end in the length direction of the burn wound anti-slipping fixing device of this embodiment, and the multiple long branches are all connected to the main air pipe, and then the main air pipe is connected to the air supply device.

[0059] It should be understood that the second air holes 130 of multiple cold therapy external dressing units can be individually controlled to be on and off by the on-off control valve 140; as can be seen from the above, the valve stem 142 of the on-off control valve 140 is generally manually operated, and the initial state of the on-off control valve 140 is an open state, that is, in the initial state, the volume chamber 101 is connected to the trachea 300 through the second air holes 130. In order to obtain better comfort, the second air holes 130 of some of the box bodies 100 can be manually closed, so that the air pressure in the volume chamber 101 of some cold therapy external dressing units is maintained at a relatively low level, thereby improving the comfort of the patients.

[0060] In an embodiment of the present invention, a bandage 500 is further included, and the bandage 500 is connected to the bottom of the box body 100 of the plurality of cold therapy external dressing units in the width direction. Figure 4 As shown, the burn wound surface anti-slipping fixing device is provided with multiple rows of cold therapy external dressing units in the length direction, and multiple bandages 500 are provided, and the multiple bandages 500 are arranged at intervals along the length direction of the burn wound surface anti-slipping fixing device; a single bandage 500 is connected to multiple cold therapy external dressing units belonging to the same row; after the two ends of the bandage 500 are connected, the cold therapy external dressing unit can be pressed tightly on the patient's wound surface. For example, if the patient's arm is burned, the burn wound surface anti-slipping fixing device of this embodiment is used as follows: first apply medicine to the arm and wrap gauze around it, then flatten the burn wound surface anti-slipping fixing device, place the arm on the burn wound surface anti-slipping fixing device, then roll up the two ends of the burn wound surface anti-slipping fixing device and fit it to the wound surface, and finally connect the two ends of the bandage 500 to press the cold therapy external dressing unit on the wound surface.

[0061] In an embodiment of the present invention, an air bag 400 is provided between adjacent cold therapy external dressing units in the width direction, the air bag 400 is connected to the trachea 300, and the air bag 400 is installed with an air pressure control valve. Specifically, in the width direction of the burn wound anti-slip fixation device, there is a spacing between adjacent cold therapy external dressing units. Therefore, the spacing between the water bags 200 of adjacent cold therapy external dressing units in the width direction is relatively large, and it is impossible to provide good support for the patient's wound. Therefore, an air bag 400 is designed, and the air bag 400 is connected to the box body 100 of two adjacent cold therapy external dressing units, and the air bag 400 extends upward and exceeds the upper surface of the box body 100; when the air bag 400 is filled with gas, the top of the air bag 400 is preferably flush with the top of the water bag 200, so that it can provide good support for the patient's wound. Reference Figure 5 As shown, the bottom of the air bag 400 is connected to the air pipe 300 through a capillary 410, so that the air pipe 300 can replenish gas into the air bag 400 through the capillary 410; the air pressure control valve installed in the air bag 400 has the same function as the constant pressure relief valve 121. When the air pressure in the air bag 400 exceeds the set value of the air pressure control valve, the air bag 400 is depressurized to prevent the air bag 400 from rupturing due to excessive pressure in the air bag 400. The set pressure of the air pressure control valve is preferably consistent with the set pressure of the constant pressure relief valve 121.

[0062] In an embodiment of the present invention, the box body 100 of the plurality of cold therapy external dressing units is in one or more of the following shapes: rectangular, triangular, trapezoidal, star-shaped, and irregular. Specifically, since the patient's body is not a regular cylindrical shape, when the burn wound surface anti-slipping fixing device is installed on the patient, the cold therapy external dressing units at the edge of the burn wound surface anti-slipping fixing device may partially overlap, thereby failing to fit the wound surface well. Therefore, it is preferred to set the cold therapy external dressing units at the edge of the burn wound surface anti-slipping fixing device to a trapezoidal, triangular, or other structure to avoid overlapping of the cold therapy external dressing units at the edge of the burn wound surface anti-slipping fixing device, thereby making the burn wound surface anti-slipping fixing device better fit the patient's wound surface.

[0063] In an embodiment of the present invention, the volume of the cold therapy external dressing unit of this embodiment can be selected to an appropriate size according to actual conditions. For example, if the burn wound anti-slipping fixation device of this embodiment is used to bandage the patient's limbs, then a burn wound anti-slipping fixation device composed of cold therapy external dressing units with a smaller volume can be selected; if the burn wound anti-slipping fixation device is used to bandage the patient's torso, then a burn wound anti-slipping fixation device composed of cold therapy external dressing units with a larger volume can be selected.

[0064] The burn wound anti-slipping fixing device of the second aspect of the embodiment of the present invention can be suitable for bandaging various wounds by increasing or decreasing the number of cold therapy external dressing units or changing the shape of the cold therapy external dressing unit box 100, and has good bandaging effect, can protect the patient's wound, and effectively improve the patient's comfort; in addition, since the burn wound anti-slipping fixing device includes the above-mentioned cold therapy external dressing unit, it also has at least all the beneficial effects of the cold therapy external dressing unit, which will not be elaborated here.

[0065] In the description of this specification, the description with reference to the terms "one embodiment", "some embodiments", "example", "specific example", or "some examples" etc. 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 present invention. In this specification, the schematic representations of the above terms do not necessarily refer to the same embodiment or example. Moreover, the specific features, structures, materials or characteristics described may be combined in any one or more embodiments or examples in a suitable manner. In addition, those skilled in the art may combine and combine different embodiments or examples described in this specification.

[0066] The embodiments of the present invention are described in detail above with reference to the accompanying drawings, but the present invention is not limited to the above embodiments, and various changes can be made within the knowledge scope of ordinary technicians in the relevant technical field without departing from the purpose of the present invention.

Claims

1. A burn wound anti-slip fixation device, characterized in that: include: A plurality of cold therapy external dressing units are arranged in an arranged manner, wherein the cold therapy external dressing units include: A box body, with a sealing sheet installed on the top, the sealing sheet and the box body forming a closed volume cavity, the sealing sheet is made of a flexible material, and the sealing sheet is higher than the top of the box body; the box body is provided with a first air hole and a second air hole penetrating the box body, the first air hole and the second air hole are both connected to the volume cavity; A constant pressure relief valve, installed at the first air hole, for limiting the maximum pressure of the volume chamber; an on-off control valve, installed at the second air hole, and used to control the opening and closing of the second air hole; A water bag is installed above the box body and connected to the sealing sheet, and the sealing sheet is arranged between the water bag and the box body; the water bag is made of a flexible material, and the water bag defines a sealed accommodation space, and the accommodation space is filled with liquid; the water bag is used to contact the wound surface of the patient, and the projection area of ​​the water bag on the horizontal plane is larger than the projection area of ​​the sealing sheet on the horizontal plane; an air pipe, which is in communication with the second air hole and is connected to an air supply device; the air pipe is used to supply air into the volume cavity; The first end of the box body in the length direction is provided with a first connection structure, and the second end in the length direction is provided with a second connection structure matching the first connection structure; an air pipe is installed on one side of the box body in the width direction; The box bodies of the plurality of cold therapy external dressing units in the width direction are connected by a flexible member, the box bodies of the plurality of cold therapy external dressing units in the length direction are connected by the first connection structure and the second connection structure, and the air tubes of the plurality of cold therapy external dressing units in the width direction are connected; An air bag is provided between the adjacent cold therapy external dressing units in the width direction, the air bag is connected to the trachea, and the air bag is equipped with an air pressure control valve; the air bag is connected to the box bodies of two adjacent cold therapy external dressing units, and when the air bag is filled with gas, the top of the air bag is flush with the top of the water bag.

2. The burn wound anti-slip fixation device according to claim 1, characterized in that: The edge of the water bag is connected to the sealing sheet via a connecting piece, and the connecting piece is made of a flexible material.

3. The burn wound anti-slip fixation device according to claim 1, characterized in that: The first connection structure and the second connection structure are both arranged on the upper part of the box body.

4. The burn wound anti-slip fixation device according to claim 1, characterized in that: The on-off control valve comprises a valve plate and a valve stem. The valve plate is installed in the second air hole. The valve stem is connected to the valve plate. Rotating the valve stem can drive the valve plate to rotate synchronously. The valve stem extends downward out of the second air hole.

5. The burn wound anti-slip fixation device according to claim 1, characterized in that: One side of the box body in the width direction is provided with a first limit strip and a second limit strip arranged at intervals in the vertical direction, and the second air hole is arranged between the first limit strip and the second limit strip; the air pipe is connected to the first limit strip and the second limit strip through a locking piece, the locking piece is sleeved on the air pipe, and the two ends of the locking piece are respectively connected to the first limit strip and the second limit strip.

6. The burn wound anti-slip fixation device according to claim 1, characterized in that: It also includes a bandage, which is connected to the bottom of the box body of multiple cold therapy external dressing units in the width direction.

7. The burn wound anti-slip fixation device according to claim 1, characterized in that: The box bodies of the plurality of cold therapy external dressing units may be in one or more of a rectangular, triangular, trapezoidal, star-shaped, or irregular shape.

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