Cardiovascular postoperative wound compression structure

Abstract

The invention provides a cardiovascular postoperative wound compression structure, and belongs to the field of medical instruments. Comprising a plastic binding belt, the plastic binding belt is in an annular shape matched with the position to be bound, the two ends of the plastic binding belt are provided with matched hook-and-loop bonding assemblies, and a plurality of grooves are formed in one side of the plastic binding belt; the compression air bag is connected to the inner side of the plastic binding belt, and the compression air bag is communicated with a first air port; the first supporting parts are arranged in the grooves; the multiple second supporting parts are connected to one side of the plastic binding belt, and anti-skid parts are bonded to the outer surfaces of the second supporting parts; when the plastic binding belt annularly wraps the surface of the skin and is fixed through the hook-and-loop bonding assembly, the compression air bag, the first supporting parts and the second supporting parts abut against the skin. The gap between the plastic binding belt and the skin is maintained through the first supporting part and the second supporting part, water vapor and heat are dissipated, and a high-humidity environment is prevented from being formed between the skin and the binding belt.

Description

Technical Field

[0001] The present invention relates to the field of medical devices, and more particularly to a wound compression structure after cardiovascular surgery. Background Art

[0002] Cardiovascular intervention refers to the technology of entering the blood vessel cavity through a minimally invasive channel through the skin, using instruments such as catheters and guidewires, and diagnosing and treating cardiovascular lesions under the guidance of images (X-ray, ultrasound, CT, intravascular ultrasound, etc.). After the interventional surgery is completed, a wound compression structure is needed to perform local compression on the intervention wound to prevent blood leakage and thrombosis, reduce the patient's postoperative bleeding risk, promote wound healing, and reduce the occurrence of postoperative complications.

[0003] Cardiovascular intervention is generally performed from the radial artery. Currently, the wound compression methods for the radial artery include spiral nut compression or inflatable bag compression. The spiral nut type is often used with simple Velcro or elastic bands. There is no additional locking groove or anti-slip texture between the strap and the base. Once the load direction changes (such as wrist rotation), the entire assembly will slide along the strap gap, and under single-point nut compression, the pressure is concentrated on the contact point between the nut and the pressure plate, and there is no compression in other areas. The entire device is more likely to "lift up" or slide on the concave and convex surface of the wrist; after the airbag is inflated, it can evenly fit the contour of the wrist over a large area, and the pressure distribution is smoother, reducing local shear force concentration. In addition, the airbag is often made of plastic, and the friction between the skin is more uniform and greater. Therefore, the current wound compression is generally performed by inflatable bag compression.

[0004] Although the inflatable airbag can prevent sliding and provide more stable pressure on the wound, the airbag compressor fits tightly to the skin (the plastic strap is in close contact with the skin surface) and is almost impermeable to water vapor. Within a few hours after the operation, a high-humidity environment will be formed between the skin and the strap, causing local skin flushing and itching. In severe cases, immersion dermatitis or blisters may occur. Summary of the Invention

[0005] In order to solve the problem in the prior art that the plastic binding belt is in close contact with the skin surface and is impermeable to water vapor, the present invention aims to provide a post-cardiovascular surgery wound compression structure.

[0006] In order to solve the above problems, the present invention adopts the following technical solutions:

[0007] A wound compression structure after cardiovascular surgery, comprising:

[0008] A plastic restraint belt, wherein the plastic restraint belt is in a ring shape that matches the position to be restrained, has matching magic adhesive components at both ends of the plastic restraint belt, and has multiple grooves on one side of the plastic restraint belt;

[0009] A compression airbag is connected to the inner side of the plastic restraint belt and is connected to a first air port.

[0010] a plurality of first support portions, wherein the first support portions are disposed in the groove;

[0011] A plurality of second support parts, wherein the plurality of second support parts are connected to one side of the plastic restraint belt, and an anti-slip part is bonded to an outer surface of the second support part;

[0012] When the plastic restraint band is wrapped around the skin surface in a ring shape and fixed by the magic adhesive assembly, the compression airbag, the multiple first support parts and the multiple second support parts are all in contact with the skin.

[0013] Optionally, a cooling filling cavity for storing liquid solidified material is provided in the first supporting portion, and the first supporting portion is further wrapped with a moisture-absorbing outer sleeve.

[0014] Optionally, the first support portion has a rectangular parallelepiped shape, and a cavity is formed in the first support portion;

[0015] The first supporting portion includes a pair of first side sealing plates, two second side sealing plates respectively fixed vertically between the edges of the pair of first side sealing plates, and two metal sealing sheets respectively fixed to both ends of the two first side sealing plates and the two second side sealing plates;

[0016] A reinforcement frame is provided on the inner wall of the metal sealing sheet, and two ends of the reinforcement frame are respectively fixedly connected to the two first side sealing plates.

[0017] Optionally, both ends of the groove on the plastic restraint belt are fixedly connected with a third Velcro, and both ends of the moisture-absorbing outer sleeve are fixedly connected with a fourth Velcro that can be bonded to the third Velcro.

[0018] Optionally, a flow channel is provided inside the plastic restraint belt, and a plurality of air outlets connected to the flow channel are provided on the inner side of the plastic restraint belt. A second air outlet connected to the flow channel is fixedly connected to the plastic restraint belt, and a cold air flow is fed into the flow channel through the second air outlet.

[0019] Optionally, the plurality of air outlets are obliquely opened on the plastic restraining belt, and the air outlet ends of the air outlets face the anti-slip portion.

[0020] Optionally, the inner wall of the plastic restraint band and the inner wall of the groove are both bonded with a thermally conductive film, the anti-slip part is bonded to the thermally conductive film, the thermally conductive film is used to conduct heat between the anti-slip part and the first support part, and multiple anti-slip parts are made of thermally conductive elastomer material.

[0021] Optionally, it further includes an air supply portion for supplying a cold air flow into the second air port;

[0022] The air supply part includes a shell, a metal tube fixedly connected to the inside of the shell, and a semiconductor refrigeration part fixedly connected to one side of the shell and having a refrigeration end that conducts heat with the metal tube.

[0023] Optionally, the air supply unit further comprises: a heat-conducting sleeve fixedly connected between the metal tube and the semiconductor refrigeration unit, an air pump fixedly connected to the end of the shell and with its output end connected to the first end of the metal tube, and a fan fixedly connected to the outside of the semiconductor refrigeration unit;

[0024] The second end of the metal tube is connected to the second gas port through a hose.

[0025] Optionally, the Velcro assembly includes an extension strap integrally formed at one end of the plastic strap, a first Velcro fixed to one side of the extension strap, and a second Velcro fixed to one end of the plastic strap for bonding with the first Velcro. The other end of the plastic strap is provided with a slot for the extension strap to pass through and move.

[0026] Compared with the prior art, the technical solution provided by the present invention has at least the following beneficial effects:

[0027] In the above scheme, multiple second support parts are provided on the inner wall of the plastic restraint belt, and multiple first support parts are also provided. The multiple first support parts bear the main load and maintain the gap height between the plastic restraint belt and the skin. The multiple second support parts can fit the skin and provide a certain point pressure buffer, so that there is a certain gap between the plastic restraint belt and the skin, allowing the water vapor and heat released by the skin to have an outlet, reducing the risk of sweating and skin immersion, and avoiding the formation of a high-humidity environment between the skin and the strap.

[0028] A cooling filling cavity is set inside the first support part, and the cooling filling cavity is sealed using two first side sealing plates, two metal sealing sheets, and two second side sealing plates. Cooling liquid is encapsulated inside the cooling filling cavity. After freezing, the cooling liquid can pass through the metal sealing sheet and the moisture-absorbing outer sleeve and contact the skin, and quickly take away the heat of the surface skin and superficial tissue through heat conduction, reducing skin sweating. Cold stimulation will cause reflex contraction of local arterioles and capillaries, immediately reducing blood flow, thereby further reducing bleeding and exudation on the basis of radial artery compression, shortening hemostasis time, and significantly reducing the area and thickness of postoperative bruises. It can also reduce tissue metabolic rate and capillary permeability, inhibit the release of inflammatory mediators of vascular endothelial cells, thereby reducing local edema after surgery. The cold sensation inhibits the conduction velocity of pain nerve fibers through the "gate control theory", and at the same time promotes the release of endogenous opioid peptides, providing rapid analgesic effect. Ice compress can relieve the burning and tingling caused by excessive tightness or long-term pressure during compression.

[0029] By setting up multiple air outlets, when a cold air flow is input into the flow channel in the plastic restraint belt through the second air outlet, the cold air flow can be discharged from the air outlet and blown onto the skin and the anti-slip part. When the coolant cannot achieve heat conduction cooling, the skin can continue to be cooled by the cold air flow. The skin can be cooled and analgesic treatment can be performed at any time according to needs, reducing skin sweating and lowering humidity, improving skin comfort, and can also cool the anti-slip part, so that the anti-slip part also has the effect of heat conduction cooling on the skin. BRIEF DESCRIPTION OF THE DRAWINGS

[0030] The accompanying drawings, which are incorporated herein and constitute a part of the specification, illustrate embodiments of the invention and, together with the description, further serve to explain the principles of the invention and to enable one skilled in the art to make and use the invention.

[0031] Figure 1 It is a schematic diagram of the three-dimensional structure of the present invention;

[0032] Figure 2 This is a schematic structural diagram of the extension belt, the first Velcro, the groove and the second support portion of the present invention;

[0033] Figure 3 This is a schematic structural diagram of the heat-conducting film and the slots of the present invention;

[0034] Figure 4 This is a schematic structural diagram of the moisture-absorbing outer sleeve and the fourth Velcro strip of the present invention;

[0035] Figure 5 This is a schematic structural diagram of the first side sealing plate, the metal sealing sheet, and the second side sealing plate of the present invention;

[0036] Figure 6 This is a schematic diagram of the structure of the reinforcement frame and the cooling filling cavity of the present invention;

[0037] Figure 7 This is a structural diagram of the connection between the air supply portion and the second air port of the present invention;

[0038] Figure 8 This is a schematic structural diagram of the housing, air pump, and fan of the present invention;

[0039] Figure 9 It is a structural schematic diagram of the metal tube, heat-conducting sleeve and semiconductor refrigeration unit of the present invention.

[0040] [Reference Signs]

[0041] 1. Plastic restraint belt; 11. Second supporting part; 12. Groove; 13. Anti-slip part; 14. Anti-slip pattern; 15. Slot; 16. Extension belt; 17. First Velcro; 18. Second Velcro; 2. Compression airbag; 21. First air port; 3. First supporting part; 31. Third Velcro; 32. Fourth Velcro; 33. Moisture-absorbing outer cover; 34. Reinforced skeleton; 35. Cooling filling cavity; 36. First side sealing plate; 37. Metal sealing sheet; 38. Second side sealing plate; 4. Thermal conductive film; 5. Air outlet; 6. Second air port; 7. Air supply part; 71. Shell; 72. Fan; 73. Air pump; 74. Metal pipe; 75. Thermal conductive sleeve; 76. Semiconductor refrigeration part.

[0042] As shown in the figure, in order to clearly implement the structure of the embodiment of the present invention, specific structures and devices are marked in the figure, but this is only for illustrative purposes and is not intended to limit the present invention to the specific structure, device and environment. According to specific needs, ordinary technicians in this field can adjust or modify these devices and environments. DETAILED DESCRIPTION

[0043] The present invention is described in detail below with reference to the accompanying drawings and specific embodiments. It is also noted that, to provide a more detailed description, the following embodiments are best and preferred embodiments, and those skilled in the art may employ alternative methods for implementing certain known technologies. Furthermore, the accompanying drawings are intended only to provide a more detailed description of the embodiments and are not intended to limit the present invention.

[0044] It should be noted that references in the specification to "one embodiment," "an embodiment," "exemplary embodiments," "some embodiments," etc. indicate that the described embodiments may include specific features, structures, or characteristics, but not necessarily every embodiment will include such specific features, structures, or characteristics. Furthermore, when specific features, structures, or characteristics are described in conjunction with an embodiment, it is within the knowledge of persons skilled in the relevant art to implement such features, structures, or characteristics in conjunction with other embodiments (whether or not explicitly described).

[0045] In general, terms can be understood, at least in part, from their use in context. For example, depending at least in part on the context, the term "one or more" as used herein can be used to describe any feature, structure, or characteristic in the singular sense, or can be used to describe a combination of features, structures, or characteristics in the plural sense. Additionally, the term "based on" can be understood as not necessarily intended to convey an exclusive set of factors, but can instead, depending at least in part on the context, allow for the presence of other factors that are not necessarily explicitly described.

[0046] It will be understood that the meanings of “on,” “over,” and “above” in the present invention should be interpreted in the broadest manner, so that “on” means not only “directly on” something but also includes the meaning of being “on” something with intervening features or layers, and “on” or “above” means not only “on” or “above” something but also includes the meaning of being “on” or “above” something with no intervening features or layers.

[0047] Additionally, spatially relative terms such as "below," "beneath," "lower," "above," and "upper" may be used herein for descriptive convenience to describe the relationship of one element or feature to another element or features, as illustrated in the accompanying drawings. Spatially relative terms are intended to encompass different orientations of the device in use or operation in addition to the orientation depicted in the accompanying drawings. The device may be oriented in other ways, and the spatially relative descriptors used herein should be similarly interpreted accordingly.

[0048] like Figures 1 to 9 As shown, an embodiment of the present invention provides a cardiovascular postoperative wound compression structure, including a cardiovascular postoperative wound compression structure, including: a plastic restraint band 1, the plastic restraint band 1 is annular and matches the position to be restrained, and both ends of the plastic restraint band 1 have matching magic adhesive components, and one side of the plastic restraint band 1 is provided with multiple grooves 12; a compression airbag 2, the compression airbag 2 is connected to the inner side of the plastic restraint band 1, and is connected to a first air port 21 and multiple first support parts 3 on the compression airbag 2, and the first support parts 3 are arranged in the groove 12; multiple second support parts 11, the multiple second support parts 11 are connected to one side of the plastic restraint band 1, and the outer surface of the second support part 11 is bonded with an anti-slip part 13; when the plastic restraint band 1 is wrapped in a ring shape on the skin surface and fixed by the magic adhesive component, the compression airbag 2, the multiple first support parts 3 and the multiple second support parts 11 are all in contact with the skin.

[0049] In the above scheme, multiple first support parts 3 and multiple second support parts 11 are provided on the inner wall of the plastic restraint belt 1. The multiple first support parts 3 bear the main load and maintain the gap height between the plastic restraint belt 1 and the skin. The multiple second support parts 11 fit the skin and provide a certain point pressure buffer, so that there is a certain gap between the plastic restraint belt 1 and the skin, allowing the water vapor and heat released by the skin to have an outlet, reducing the risk of sweating and skin immersion, and avoiding the formation of a high-humidity environment between the skin and the strap.

[0050] It should be noted that the compression airbag 2 can be integrally formed on the plastic restraint belt 1 , which is not limited in this embodiment.

[0051] like Figure 2 、 Figures 4 to 6 As shown, in one embodiment of the present invention, a cooling filling chamber 35 is defined within the first support portion 3 for storing liquid solids. Cooling liquid is encapsulated within the cooling filling chamber 35 for cooling. The first support portion 3 is also wrapped with a moisture-absorbing outer sheath 33, which is intended to contact the skin.

[0052] In an embodiment provided by the present invention, the first support portion 3 has an outer shape of a rectangular parallelepiped, and a cavity is formed inside the first support portion 3; the first support portion 3 includes a pair of first side sealing plates 36, two second side sealing plates 38 respectively fixed vertically between the edges of the pair of first side sealing plates 36, and two metal sealing plates 37 respectively fixed at both ends of the two first side sealing plates 36 and the two second side sealing plates 38; a reinforcing frame 34 is provided on the inner wall of the metal sealing plate 37, and the two ends of the reinforcing frame 34 are respectively fixed to the two first side sealing plates 36.

[0053] A cooling filling cavity 35 is provided inside the first support part 3, and the cooling filling cavity 35 is sealed by using two first side sealing plates 36, two metal sealing plates 37, and two second side sealing plates 38. A cooling liquid is encapsulated inside the cooling filling cavity 35. After being frozen, the cooling liquid can pass through the metal sealing plates 37 and the moisture-absorbing outer sleeve 33 and contact the skin, and quickly take away the heat of the surface skin and superficial tissue through heat conduction, reducing skin sweating. Cold stimulation will cause reflex contraction of local arterioles and capillaries, immediately reducing blood flow, thereby further reducing bleeding and exudation on the basis of radial artery compression, shortening hemostasis time, and significantly reducing the area and thickness of postoperative bruises. It can also reduce tissue metabolic rate and capillary permeability, inhibit the release of inflammatory mediators of vascular endothelial cells, thereby reducing local edema after surgery. The cold sensation inhibits the conduction velocity of pain nerve fibers through the "gate control theory", and at the same time promotes the release of endogenous opioid peptides, providing a rapid analgesic effect. Ice compress can relieve the burning and tingling caused by excessive tightness or long-term pressure during compression.

[0054] In one embodiment of the present invention, a third hook-and-loop fastener 31 is secured to both ends of the groove 12 of the plastic strap 1, and a fourth hook-and-loop fastener 32, which is bonded to the third hook-and-loop fastener 31, is secured to both ends of the moisture-absorbing outer sleeve 33. This structure allows for quick fixation of the moisture-absorbing outer sleeve 33 and the rigid support portion 3.

[0055] By adopting the above technical solution, before the plastic strap 1 is tied to the arm, the fourth Velcro 32 is separated from the third Velcro 31, the first support part 3 of the multiple rigid support parts is separated from the plastic strap 1, and the first support part 3 of the support assembly (the first side sealing plate 36, the second side sealing plate 38, and the reinforcement frame 34 can all be made of lightweight plastic material, such as PP GF30, ABS and other materials, the metal sealing sheet 37 is made of a metal sheet with high thermal conductivity, such as aluminum alloy. The reinforcing skeleton 34 inside the cooling filling cavity 35 can position the metal sheet to prevent the metal sheet from deforming, and at the same time provide a stable support for the entire support component first support part 3) The external moisture-absorbing outer sleeve 33 (the material can be made of ultra-fine microfiber flannel, which is mainly used to quickly absorb the condensed water droplets on the surface of the support component first support part 3 without excessive heat insulation and weakening the ice compress effect, and at the same time avoid indirect contact between the metal sealing sheet 37 and the skin) is peeled off from the outside of the support component first support part 3, and the support component first support part 3 is placed in the freezer in advance for freezing. After the operation is completed, the support component first support part 3 is taken out of the freezer, and the moisture-absorbing outer sleeve 33 is sleeved on the outside of the support component first support part 3, and then the rigid support part first support 3 is fastened through Velcro (the third Velcro 31 and the fourth Velcro Velcro 32) is bonded to the plastic restraint 1, and one of the metal sealing sheets 37 of the first supporting part 3 of the supporting assembly is in indirect contact with the surface skin through the moisture-absorbing outer sleeve 33. The liquid solid (ice cube) encapsulated in the cooling filling cavity 35 can quickly take away the heat of the surface skin and superficial tissue through heat conduction, reducing skin sweating. The cold stimulation will cause the reflex contraction of local arterioles and capillaries, immediately reducing the blood flow, thereby further reducing bleeding and exudation on the basis of radial artery compression, shortening the hemostasis time, and significantly reducing the area and thickness of postoperative bruises. It can also reduce tissue metabolic rate and capillary permeability, inhibit the release of inflammatory mediators of vascular endothelial cells, thereby reducing local edema after surgery. The cold sensation inhibits the conduction velocity of pain nerve fibers through the "gate control theory", and at the same time promotes the release of endogenous opioid peptides, providing a rapid analgesic effect. Ice compress can relieve the burning and tingling caused by excessive tightness or long-term pressure during compression.

[0056] like Figure 2 、 Figures 7 to 9 As shown, in one embodiment provided by the present invention, a flow channel is opened inside the plastic restraint belt 1, and a plurality of air outlets 5 connected to the flow channel are opened on the inner side of the plastic restraint belt 1, and a second air port 6 connected to the flow channel is fixedly connected to the plastic restraint belt 1, and a cold air flow is sent into the flow channel through the second air port 6.

[0057] By setting up multiple air outlets 5, when cold air flow is input into the flow channel in the plastic restraint belt 1 through the second air outlet 6, the cold air flow can be discharged from the air outlet 5 and blown onto the skin, and the skin can be cooled by the cold air flow. The skin can be cooled and analgesic treatment can be performed at any time according to needs, reducing skin sweating and reducing humidity, thereby improving skin comfort.

[0058] like Figure 2 and Figure 3 As shown, in one embodiment of the present invention, multiple air outlets 5 are obliquely arranged on the plastic restraint 1, with the outlet ends of the air outlets 5 facing the anti-slip portion 13. Cool air can be discharged from the air outlets 5 and blown onto the anti-slip portion 13, thereby cooling the anti-slip portion 13 and achieving a cooling effect on the skin through heat conduction.

[0059] In one embodiment of the present invention, a thermally conductive film 4 is bonded to the inner wall of the plastic restraint 1 and the inner wall of the groove 12. The anti-slip portion 13 is bonded to the thermally conductive film 4. The thermally conductive film 4 is used to conduct heat between the anti-slip portion 13 and the first support portion 3. The multiple anti-slip portions 13 are made of a thermally conductive elastomer material. The anti-slip portion 13, through contact with the skin, conducts heat from the skin to the thermally conductive film 4, dissipating heat from the skin.

[0060] By adopting the above technical solution, since the air outlet 5 is set at an angle, the cold air flow discharged from the air outlet 5 can not only blow on the skin surface, but also blow on the anti-slip part 13. The anti-slip part 13 is a thermally conductive elastomer material (high thermal conductivity filler is added to the rubber matrix, such as silicone matrix + boron nitride (BN) filler, which has corresponding applications in electronic device heat dissipation pads and LED spotlight thermal gaskets). When the cold air flow blows on the anti-slip part 13, the anti-slip part 13 can be cooled, so that the skin in contact with the anti-slip part 13 can remain cool. At the same time, the heat of the anti-slip part 13 can also be conducted to the thermally conductive film sheet 4 (flexible graphene film material or other flexible thermally conductive materials can be used, which is a mature existing technology and will not be repeated here. It is glued to one side of the plastic restraint band 1) to achieve better thermal conductivity and heat dissipation effects.

[0061] In one embodiment of the present invention, an air supply unit 7 is further included for supplying a cold air flow to the second air port 6. The air supply unit 7 includes a housing 71, a metal tube 74 fixedly connected to the interior of the housing 71, and a semiconductor cooling unit 76 fixedly connected to one side of the housing 71, with a cooling end conducting heat to the metal tube 74. The semiconductor cooling unit 76 is used to cool the metal tube 74, thereby supplying a cold air flow to the second air port 6.

[0062] In one embodiment of the present invention, the air supply unit 7 further includes a heat-conducting sleeve 75 secured between the metal tube 74 and the semiconductor cooling unit 76; an air pump 73 secured to the end of the housing 71 and connected at its output end to the first end of the metal tube 74; and a fan 72 secured to the exterior of the semiconductor cooling unit 76. The second end of the metal tube 74 is connected to the second air port 6 via a flexible hose. The heat-conducting sleeve 75 transfers cooling energy to the metal tube 74, the air pump 73 supplies air to the metal tube 74, and the fan 72 promotes heat dissipation at the heat dissipation end of the semiconductor cooling unit 76. The air pump 73 may be a micro air pump.

[0063] By adopting the above technical solution, when the ice cubes in the cooling filling cavity 35 cannot achieve heat conduction cooling, the skin can continue to be cooled by means of cold air flow. In the present application, the air supply part 7 designed to be used in conjunction with the plastic restraint belt 1 is used to supply cold air flow, and it can also be selected according to actual conditions to supply it with a cold air flow supply device. The working principle of the air supply part 7 is as follows: the air pump 73 works to pump gas into the metal tube 74, and the fan 72 is used to dissipate heat from the hot end of the semiconductor refrigeration part 76. The cold end of the semiconductor refrigeration part 76 is tightly attached to one side of the heat conductive sleeve 75, and the cold energy is efficiently transferred to the metal tube 74 through the heat conductive sleeve 75. The metal tube 74 (which must have good thermal conductivity, such as copper or aluminum) absorbs the cold energy from the cold end, and the temperature is reduced, and the heat flows through the metal tube 74. The gas inside contacts the inner wall of the low-temperature metal tube 74, heat exchange occurs, the gas temperature is reduced, and the cold air flow is discharged from the metal tube 74 into the second air port 6. The cold air flow enters the flow channel through the second air port 6, and is finally discharged from the air outlet 5 and blown on the outer skin to cool it down. The skin can be cooled and analgesic at any time according to needs, reducing skin sweating and lowering humidity, thereby improving skin comfort. It should be noted here that how to make multiple air outlets 5 discharge air evenly is a mature existing technology. For example, a flow limiting orifice plate or micro nozzle with the same design can be opened at each air outlet 5 with the same aperture and number of holes. In this way, even if there is a slight difference in the resistance of the branch pipeline, the throttling effect can "clamp" the flow of each branch within the same range, which will not be repeated here.

[0064] In one embodiment of the present invention, the hook-and-loop assembly includes an extension strap 16 integrally formed at one end of a plastic strap 1, a first hook-and-loop fastener 17 affixed to one side of the extension strap 16, and a second hook-and-loop fastener 18 affixed to one end of the plastic strap 1 for bonding with the first hook-and-loop fastener 17. The other end of the plastic strap 1 is provided with a slot 15 through which the extension strap 16 passes and moves. By passing the extension strap 16 through the slot 15 and then bending it, the first hook-and-loop fastener 17 and the second hook-and-loop fastener 18 are bonded, allowing the plastic strap 1 to be wrapped around the skin.

[0065] By adopting the above technical solution, the plastic strap 1 is placed on the skin surface, the extension belt 16 passes through the slot 15 and is bent, and the first Velcro 17 is bonded to the second Velcro 18 to complete the action of wrapping the plastic strap 1 on the skin surface. When the plastic strap 1 is tied to the skin, multiple first support parts 3 are located between the plastic strap 1 and the skin and bear the main load, ensuring that the first support part 3 can lift the plastic strap 1 after the plastic strap 1 is tightened, so as to create a gap between the plastic strap 1 and the skin and maintain the height of the gap between the plastic strap 1 and the skin. Multiple circular support parts 11 are attached to the skin. The combination of the first support part 3 and the second support part 11 can realize point pressure buffering (through its low elastic modulus and moderate compression deformation, the point high pressure is evenly diffused to a larger contact surface, the single-point pressure peak is reduced, the risk of local skin necrosis or nerve compression is reduced, and the compressive force is dispersed) and at the same time, it can inhibit the belt from sliding along the arm. The cooperation of the first support part 3 and the second support part 11 can create a certain gap between the plastic restraint belt 1 and the skin, and the gaps between the multiple second support parts 11 can also form ventilation channels, which accelerate the evaporation of sweat, allow the water vapor and heat released by the skin to have an outlet, reduce the risk of stuffy sweat and skin immersion, and avoid the formation of a high-humidity environment between the skin and the strap.

[0066] Furthermore, the first supporting portion 3 may be provided along the width direction of the plastic restraint belt 1 , and the second supporting portion 11 may be circular.

[0067] The workflow of the technical solution of the present invention is as follows:

[0068] Put the first support part 3 into the freezer in advance and freeze it and install it, then put the moisture-absorbing outer sleeve 33 on the outside of the first support part 3, and then bond the first support part 3 to the plastic strap 1 through Velcro (third Velcro 31 and fourth Velcro 32), place the plastic strap 1 on the skin surface, make the extension belt 16 pass through the slot 15 and bend it, and bond the first Velcro 17 to the second Velcro 18 to complete the action of wrapping the plastic strap 1 on the skin surface. Multiple first support parts 3, multiple anti-slip parts 13 and moisture-absorbing outer sleeve 33 are bonded to the skin surface. Contact, the skin surface is cooled by cooling the liquid solid (ice cube) in the filling cavity 35, and then gas is pumped into the first air port 21 through the air pump. The gas enters the compression airbag 2 from the first air port 21, and the compression airbag 2 expands and compresses the skin around the wound to achieve local compression of the wound. When the liquid solid (ice cube) loses its cooling ability and the skin surface needs to be cooled, the air supply part 7 can be used to supply cold air flow to the second air port 6. The cold air flow enters the flow channel through the second air port 6 and is finally discharged from the air outlet 5 and blown on the outer skin to cool it.

[0069] The present invention encompasses any alternatives, modifications, equivalents, and solutions that fall within the spirit and scope of the present invention. To provide a thorough understanding of the present invention, specific details are described in detail below in connection with the preferred embodiments of the present invention, but those skilled in the art will be able to fully understand the present invention without these detailed descriptions. Furthermore, to avoid unnecessary confusion regarding the essence of the present invention, well-known methods, processes, procedures, components, and circuits have not been described in detail.

[0070] The above is only a preferred embodiment of the present invention. It should be pointed out that for ordinary technicians in this technical field, several improvements and modifications can be made without departing from the principles of the present invention. These improvements and modifications should also be regarded as the scope of protection of the present invention.

Claims

1. A wound compression structure after cardiovascular surgery, characterized in that: include: A plastic restraint belt, wherein the plastic restraint belt is in a ring shape that matches the position to be restrained, has matching magic adhesive components at both ends of the plastic restraint belt, and has multiple grooves on one side of the plastic restraint belt; A compression airbag, the compression airbag is connected to the inner side of the plastic restraint belt, and the compression airbag is connected to a first air port; a plurality of first support portions, wherein the first support portions are disposed in the groove; A plurality of second support parts, wherein the plurality of second support parts are connected to one side of the plastic restraint belt, and an anti-slip part is bonded to an outer surface of the second support part; When the plastic restraint band is wrapped around the skin surface in a ring shape and fixed by the magic adhesive assembly, the compression airbag, the multiple first support parts and the multiple second support parts are all in contact with the skin.

2. The wound compression structure after cardiovascular surgery according to claim 1, characterized in that: A cooling filling cavity for storing liquid solidified material is provided in the first supporting portion, and a moisture-absorbing outer sleeve is wrapped around the first supporting portion.

3. The wound compression structure after cardiovascular surgery according to claim 2, characterized in that: The first supporting portion has a rectangular parallelepiped shape, and a cavity is formed in the first supporting portion; The first supporting portion includes a pair of first side sealing plates, two second side sealing plates respectively fixed vertically between the edges of the pair of first side sealing plates, and two metal sealing sheets respectively fixed to both ends of the two first side sealing plates and the two second side sealing plates; A reinforcement frame is provided on the inner wall of the metal sealing sheet, and two ends of the reinforcement frame are respectively fixedly connected to the two first side sealing plates.

4. The wound compression structure after cardiovascular surgery according to claim 3, characterized in that: Both ends of the groove on the plastic restraint belt are fixedly connected with a third Velcro, and both ends of the moisture-absorbing outer sleeve are fixedly connected with a fourth Velcro that can be bonded to the third Velcro.

5. The wound compression structure after cardiovascular surgery according to claim 4, characterized in that: A flow channel is provided inside the plastic restraint belt, and a plurality of air outlets connected to the flow channel are provided on the inner side of the plastic restraint belt. A second air outlet connected to the flow channel is fixedly connected to the plastic restraint belt, and a cold air flow is fed into the flow channel through the second air outlet.

6. The wound compression structure after cardiovascular surgery according to claim 5, characterized in that: The plurality of air outlets are obliquely opened on the plastic binding belt, and the air outlet ends of the air outlets face the anti-slip portion.

7. The wound compression structure after cardiovascular surgery according to claim 6, characterized in that: The inner wall of the plastic restraint band and the inner wall of the groove are both bonded with thermally conductive film sheets, the anti-slip portion is bonded to the thermally conductive film sheets, the thermally conductive film sheets are used to conduct heat between the anti-slip portion and the first supporting portion, and multiple anti-slip portions are made of thermally conductive elastomer material.

8. The wound compression structure after cardiovascular surgery according to claim 6, characterized in that: Also included is an air supply portion for supplying a cold air flow into the second air port; The air supply part includes a shell, a metal tube fixedly connected to the inside of the shell, and a semiconductor refrigeration part fixedly connected to one side of the shell and having a refrigeration end that conducts heat with the metal tube.

9. The wound compression structure after cardiovascular surgery according to claim 8, characterized in that: The air supply unit further includes: a heat-conducting sleeve fixedly connected between the metal tube and the semiconductor refrigeration unit, an air pump fixedly connected to the end of the shell and having an output end connected to the first end of the metal tube, and a fan fixedly connected to the outside of the semiconductor refrigeration unit; The second end of the metal tube is connected to the second gas port through a hose.

10. The wound compression structure after cardiovascular surgery according to claim 1, characterized in that: The Velcro assembly includes an extension strap integrally formed at one end of a plastic strap, a first Velcro fixed to one side of the extension strap, and a second Velcro fixed to one end of the plastic strap for bonding with the first Velcro. The other end of the plastic strap is provided with a slot for the extension strap to pass through and move.

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