Detachable modular layered moisture-locking wet pack therapy garment

Abstract

The present application relates to the technical field of medical devices, in particular to a detachable modular layered water-locking wet wrapping therapy garment, comprising a treatment garment body, the treatment garment body comprises an inner layer, an air bag layer and an outer layer from inside to outside in turn, the inner layer is used for contacting the skin of the affected area; the treatment garment body is a split structure, at least comprising a limb part and a four-limb part, the limb part and the four-limb part are connected through a detachable part, at least part of the area of the inner layer is composed of a wet response shrinkable fabric, which is in a relaxed state in a dry state to keep the treatment garment loose, and almost no friction force is generated when wearing, thus avoiding the problem of scraping off the ointment caused by tight wearing from the root; after wearing, water mist is applied, the shrinkable fiber automatically shrinks along the circumference direction when meeting water, so that the inner layer self-adapts to patients with different body types and closely fits the body surface, the shrinkage force is uniformly distributed in a surface shape, the linear marks generated by the existing bandage winding mode are eliminated, and the working mode of dry loose and easy to wear and wet automatic close-fitting is realized.

Description

Technical Field

[0001] This invention relates to the field of medical device technology, and in particular to a detachable, modular, layered, water-locking, wet-wrapping therapeutic garment. Background Technology

[0002] Atopic dermatitis is a common chronic, relapsing, allergic skin disease characterized by intense itching, dry skin, and eczematous rashes. Moist dressing therapy involves applying topical medications and emollients, followed by a double-layered dressing that is "moist inside and dry outside." The moist inner layer lowers skin surface temperature and constricts blood vessels to reduce the release of inflammatory mediators, while simultaneously forming a physical barrier to prevent scratching and promote drug absorption. This method has been recommended by the American Academy of Dermatology for the treatment of acute exacerbations of moderate to severe atopic dermatitis.

[0003] In the clinical practice of wet swab therapy, patients first apply ointment to the affected areas, then apply a moisturizer all over the body, and finally wear the treatment device. However, existing wearable wet swab garments are usually designed to be quite tight to achieve a proper fit. During wear, the tight clothing creates significant friction between the garment and the skin, easily scraping away the evenly applied ointment and moisturizer from the skin surface. This results in insufficient or uneven distribution of the medication, severely affecting the therapeutic effect of the ointment. Especially for patients with large lesions or those who are sensitive to pain, repeated adjustments to the garment position further exacerbate ointment loss and patient discomfort.

[0004] In the prior art, Chinese utility model patent CN211156622U discloses a treatment device for wet wrap therapy, comprising a double-layer structure of an inner layer and a protective layer. The inner layer is used to fix the medication and directly contact the affected skin, while the protective layer is waterproof and breathable, and is equipped with connecting components such as zippers, snaps, or Velcro to assist in wearing. However, this treatment device is a uniform garment, only offering discrete size options, and cannot provide personalized fit for patients of different body types. The fit of the same size treatment garment varies significantly on different patients: if the treatment garment is too loose, the inner layer cannot adhere tightly to the skin surface, leaving gaps between the wet wrap medium and the skin, severely affecting drug absorption and moisturizing effects; if the treatment garment is too tight, the aforementioned problem of scraping away the ointment occurs. Clinically, some medical staff use an alternative approach of wrapping additional bandages around the outside of the treatment garment for tighter wrapping, but this remedial method causes irregular contraction of the garment, creating linear marks on the patient's skin, causing local pressure discomfort, and the tightness of the bandage wrapping is difficult to control precisely.

[0005] Chinese invention patent CN112869948A discloses a smart wet-responsive compressive fabric and its preparation method. This fabric comprises compressive fibers formed by wet stretching and drying of hydrogel fibers. Upon contact with a water-based liquid, it exhibits a tendency to shrink in either the warp or weft direction, while remaining soft and breathable in a dry state. However, this patent focuses on wound bandages as an application scenario and does not address how to systematically integrate this fabric into a wearable wet-wrapped therapeutic garment, nor does it propose a technical solution to resolve the contradiction between ease of donning and doffing and fit effectiveness in therapeutic garments by utilizing the fabric's bistable wet-dry properties. Summary of the Invention

[0006] To achieve the above and other related objectives, the present invention aims to provide a detachable, modular, layered, water-locking, wet-wrapping therapeutic garment, comprising a therapeutic garment body, wherein the therapeutic garment body comprises, from the inside out, an inner layer, an air-filled layer, and an outer layer, wherein the inner layer is used to contact the skin of the affected area; the therapeutic garment body has a split structure, comprising at least a limb part and four limbs, wherein the limb part and four limbs are connected by detachable parts, so as to facilitate independent wearing of different parts;

[0007] At least a portion of the inner layer is composed of a wet-responsive compressive fabric configured to: be in a relaxed state when dry, allowing the garment to remain loose for easy wear and preventing the ointment applied to the skin from being scraped off during wear; and contract in a predetermined direction upon contact with liquid, causing the inner layer to automatically tighten and fit snugly against the body surface to accommodate patients of different body types and maintain sufficient contact between the medication and the skin.

[0008] Preferably, the wet-responsive shrinkage fabric is made of shrinkage fiber blended with at least one of cotton fiber, viscose fiber, polyester fiber or nylon fiber; the shrinkage fiber is made of hydrogel fiber that has been wet-stretched 2 to 50 times and then dried and shaped, and the shrinkage fiber shrinks along the stretching direction after contact with water-based liquid, while swelling in the radial direction to fill the gaps between fibers.

[0009] Preferably, the wet-response shrinkage fabric is distributed in a ring shape on the inner layer, forming at least one ring-shaped shrinkage area. The position of the ring-shaped shrinkage area corresponds to the chest area, waist area, upper arm area and / or thigh area when the therapeutic garment is worn on the human body. The shrinkage fibers in the ring-shaped shrinkage area are oriented circumferentially along the corresponding body surface area so that the shrinkage direction is the direction of tightening the circumference.

[0010] Preferably, the four limbs include a left upper limb, a right upper limb, a left lower limb, and a right lower limb. Each limb is detachably connected to the limb via the detachable component, so that each part can be worn and removed independently.

[0011] Preferably, the limbs and quadrants are provided with openings extending longitudinally therefrom, and the two sides of the openings are provided with detachable connecting components. The detachable connecting components are any one of zippers, Velcro, or snaps, so that the treatment garment can be fully unfolded and laid flat for wearing in a dry state, avoiding scraping of the ointment when putting it on and taking it off.

[0012] Preferably, the airbag layer includes at least two independently controlled airbag groups, each airbag group corresponding to a body surface section of the therapeutic garment body; each airbag group is connected to an air source through an independent air passage, and the air passage is provided with a valve group for controlling the inflation, pressure holding and deflation states of each airbag group; when the inner layer is wet and shrinks to fit the body surface, the airbag group inflates and expands, applying uniform support pressure to the inner layer towards the body surface.

[0013] Preferably, the outer layer has a plurality of air holes, which are connected along the thickness direction of the outer layer, and each air hole is located on the outside of each air bladder in the air bladder layer in a one-to-one correspondence with the position of each air bladder.

[0014] When the airbag inflates, the outer wall of the airbag adheres to and seals the air holes, making the outer layer airtight in the corresponding area to maintain a moist environment for the inner layer.

[0015] When the airbag contracts, the outer wall of the airbag detaches from the air hole, the air hole is open, and the outer layer is breathable in the corresponding area. At this time, water mist applied from the outside to the surface of the outer layer enters the interior of the treatment garment through the air hole, wets the wet response compression fabric to trigger its contraction.

[0016] Preferably, each of the body surface zones is equipped with a temperature and humidity sensor; the valve assembly is configured to control each zone independently based on the monitoring signals from the temperature and humidity sensors.

[0017] When the temperature of any of the aforementioned body surface zones exceeds a first preset threshold, the airbag group corresponding to that zone is controlled to deflate and contract, so that the pores on the outer layer of that zone are open, thereby reducing the skin temperature through moisture evaporation.

[0018] When the temperature of the body surface zone drops below the second preset threshold, the airbag group corresponding to the zone is inflated and expanded, so that the outer wall of the airbag reseals the pores on the outer layer of the zone to maintain a humid environment.

[0019] Preferably, each airbag in the airbag layer is a strip-shaped airbag extending longitudinally along the body of the treatment garment, with gaps between adjacent strip-shaped airbags; all strip-shaped airbags in the same airbag group are interconnected through narrow air passage bridges; the airbag is made of medical-grade thermoplastic polyurethane (TPU) film.

[0020] Preferably, the inner layer of the wet-responsive compression fabric carries an antibacterial component, which includes one or more of chitosan, ε-polylysine, or titanium carbide nanosheets; the antibacterial component is gradually released as the fibers swell after the wet-responsive compression fabric comes into contact with a liquid.

[0021] The present invention provides a detachable, modular, layered, water-locking, wet-wrapping therapeutic garment, which has the following beneficial effects:

[0022] 1. This invention incorporates a wet-responsive compressive fabric in the inner layer, which remains loose in a dry state, allowing the treatment garment to stay comfortable and generating almost no friction when worn. This fundamentally avoids the problem of tight-fitting garments snagging away the ointment. After wearing, applying a water mist causes the compressive fibers to automatically shrink along the circumference direction upon contact with water, allowing the inner layer to adapt to different body types and fit closely to the body surface. The contractile force is evenly distributed in a planar manner, eliminating the linear marks caused by existing bandage wrapping methods. This achieves a working mode that is loose and easy to wear when dry and automatically fits the body when wet.

[0023] 2. The airbag layer and the outer layer pores form a direct opening and closing linkage mechanism. When the airbag expands, the outer wall seals the pores to keep it airtight and maintain a humid environment. When the airbag contracts, it detaches from the pores to allow air to pass through and evaporate for cooling. The inflation and deflation of the airbag is directly used to switch the outer layer's ventilation state. Combined with independent temperature and humidity sensors and air path control for each zone, a precise dynamic balance between moisturizing and cooling in different body areas is achieved, solving the contradiction of existing treatment garments that cause local overheating due to full closure and overall water loss due to full openness.

[0024] 3. The treatment garment adopts a body structure with limbs and four limbs, which are connected by detachable parts. Each part can be laid flat and worn independently and then spliced ​​together into a whole. With a vertically open zipper, it can be put on and taken off without pulling on the head or pulling hard. It is especially suitable for patients with large skin lesions and limited mobility, which significantly reduces the threshold for use and skin irritation. Attached Figure Description

[0025] To more clearly illustrate the technical solutions in the embodiments of the present invention or the prior art, the drawings used in the description of the embodiments or the prior art will be briefly introduced below. Obviously, the drawings described below are only some embodiments of the present invention. For those skilled in the art, other drawings can be obtained from these drawings without creative effort.

[0026] Figure 1 This is a schematic diagram of the main structure of the therapeutic garment in this invention;

[0027] Figure 2 This is a cross-sectional view of the therapeutic garment body of each component in this invention. Detailed Implementation

[0028] The following detailed description, in conjunction with the accompanying drawings and specific embodiments, provides a further detailed explanation of the detachable modular layered water-locking wet-wrapping therapeutic garment proposed in this invention. The advantages and features of the invention will become clearer from the following description. It should be noted that the drawings are all in a very simplified form and use non-precise proportions, and are only used to facilitate and clarify the illustration of the embodiments of the invention.

[0029] In the description of this invention, the terms "first" and "second" are used for descriptive purposes only and should not be construed as indicating or implying relative importance or implicitly specifying the number of indicated technical features. Thus, a feature defined as "first" or "second" may explicitly or implicitly include one or more of that feature. In the description of this invention, "a plurality of" means at least two, such as two, three, etc., unless otherwise explicitly specified.

[0030] It should be noted that the illustrations provided in the following embodiments are only schematic representations of the basic concept of the present invention. Therefore, the illustrations only show the components related to the present invention and are not drawn according to the actual number, shape and size of the components in the actual implementation. In the actual implementation, the state, quantity and proportion of each component can be arbitrarily changed, and the layout of the components may also be more complex.

[0031] like Figure 1 As shown, the present invention provides a detachable modular layered water-locking wet wrap therapy garment, which includes a treatment garment body. The treatment garment body has a split structure, including a limb part 10 and a limb part 20. The limb part 10 is used to cover the patient's torso area, and the limb part 20 is used to cover the patient's limb area. The limb part 10 and the limb part 20 are connected by a detachable component, which can be a zipper, Velcro, or snaps. Preferably, it is a fully open zipper set along the connecting edge, so that the parts can be quickly spliced ​​or separated. The split design allows the patient to wear it one part at a time, avoiding the inconvenience of needing to pull the whole body garment over the head or put it on, and also facilitates local treatment of specific affected areas.

[0032] Specifically, the limbs 20 can be further subdivided into the left upper limb, the right upper limb, the left lower limb, and the right lower limb. Each limb 20 is detachably connected to the limbs 10 via a detachable component. If necessary, additional separate parts such as hands can be added.

[0033] like Figure 2As shown, each part of the treatment garment consists of an inner layer 100, an air bladder layer 200, and an outer layer 300 from the inside out. The inner layer 100 directly contacts the patient's skin and is used to carry the medication and conduct the therapeutic effect of the wet-wrapped treatment medium on the skin. The air bladder layer 200 is sandwiched between the inner layer 100 and the outer layer 300. It is used to apply uniform support pressure to the inner layer after inflation and to control the opening and closing of the pores of the outer layer through expansion / contraction. The outer layer 300 is the outermost structure of the treatment garment and has pores on it to provide protection and a function for switching between breathable and non-breathable states.

[0034] In some embodiments, at least a portion of the inner layer 100 is composed of a wet-responsive shrinkage fabric. This fabric is woven from shrinkage fibers blended with at least one of cotton, viscose, polyester, or nylon fibers. The shrinkage fibers are made from hydrogel fibers that have been wet-stretched 2 to 50 times and then dried and set. The hydrogel fibers can be selected from systems such as polyvinyl alcohol / polyacrylic acid interpenetrating network hydrogel, sodium alginate / polyacrylamide dual-network hydrogel, or chitosan-based hydrogel. The hydrogel fibers are mechanically stretched axially in a fully water-absorbed and swollen state. Specifically, the stretch ratio is determined according to the target... Shrinkage force selection: For mild shrinkage, use 5 to 15 times stretching; for severe shrinkage, use 20 to 50 times stretching. After stretching, maintain tension during hot air drying or freeze drying to ensure that the macromolecular chains inside the fiber are highly oriented and fixed along the stretching direction. The dried and shaped compressed fiber is in a thermodynamic metastable state. Once it comes into contact with a water-based liquid (water, lotion, ointment base, etc.), water molecules penetrate into the fiber and break the hydrogen bond lock. The macromolecular chains undergo entropy elastic recovery, resulting in shrinkage along the stretching direction. At the same time, it swells radially to fill the gaps between fibers, making the fabric more densely adhere to the skin surface.

[0035] The preferred blending ratio of compressed fiber to ordinary fiber is 30% to 70% by weight of compressed fiber. If the ratio is too low, the shrinkage force will be insufficient, and if it is too high, the dry hand feel will be too stiff and the cost will increase. In a preferred embodiment, compressed fiber and cotton fiber are blended at a ratio of 1:1, the fabric weight is 180 to 250 g / m², the dry thickness is 0.8 to 1.2 mm, and the wet shrinkage rate can reach 15% to 35% in the warp or weft direction.

[0036] The wet-response shrinkage fabric is distributed in a ring shape on the inner layer 100, forming multiple ring-shaped shrinkage zones. The positions of the ring-shaped shrinkage zones correspond one-to-one with the chest area, waist area, upper arm area, and thigh area of ​​the treatment garment when worn on the human body. The shrinkage fibers in each ring-shaped shrinkage zone are oriented along the circumference of the corresponding body surface area. That is, the shrinkage fibers in the chest shrinkage zone are oriented along the chest circumference, the waist shrinkage zone is oriented along the waist circumference, the upper arm shrinkage zone is oriented along the arm circumference, and the thigh shrinkage zone is oriented along the leg circumference. In this way, when the shrinkage fibers come into contact with liquid, the shrinkage direction is the direction of tightening the circumference, so that the treatment garment generates a uniform wrapping force in the key areas that need to fit.

[0037] The width of the annular contraction zones is flexibly set according to the size of the corresponding parts. Typically, the width of the chest contraction zone is 8 to 12 cm, the waist contraction zone is 6 to 10 cm, the upper arm contraction zone is 4 to 6 cm, and the thigh contraction zone is 8 to 14 cm. The annular contraction zones are connected by ordinary elastic breathable knitted fabric.

[0038] Before use, the treatment garment is dry, with the tight fibers remaining loose. The garment itself is loose, with a 0.5 to 2 cm gap between the inner layer and the patient's skin. The patient can first apply the ointment to the affected skin, followed by a moisturizer. Since the various parts are connected by detachable components, the patient can separate the limb part 10 from the quadruped part 20, wear them one by one, and then assemble them into a whole using the detachable components. This further reduces the size of each garment and the difficulty of wearing it. During the wearing process, the dry and loose treatment garment generates almost no friction, effectively preventing the traditional tight-fitting treatment garment from scraping away the evenly applied ointment and moisturizer.

[0039] After being put on, water mist is applied to the outer surface of the treatment garment from the outside. The water mist enters the inside of the treatment garment through the pores of the outer layer, wetting the inner layer of the wet response tightening fabric. The tightening fibers are triggered to shrink when they come into contact with water, and the annular shrinkage area tightens along the circumference, automatically pulling the inner layer towards the skin surface and making it fit tightly. Because the shrinkage force is evenly distributed across the fabric surface rather than concentrated in a narrow band, no linear marks will be produced on the skin. At the same time, radial swelling fills the gaps between the fibers, further enhancing the contact effect between the drug and the skin, achieving a working mode that is loose and easy to wear when dry and automatically fits the body when wet.

[0040] In some embodiments, the wet-responsive shrink fabric of the inner layer 100 carries an antibacterial component, which may be one or more of chitosan, ε-polylysine, or titanium carbide nanosheets. The antibacterial component is loaded onto the surface or interior of the shrink fiber through an impregnation-crosslinking process. After the shrink fiber comes into contact with the liquid, the antibacterial component is gradually released from the fiber network to the skin surface during the fiber swelling process, inhibiting the proliferation of pathogenic bacteria such as Staphylococcus aureus, which are common in the lesions of atopic dermatitis, and reducing the risk of secondary infection.

[0041] In some embodiments, the airbag layer 200 includes multiple independently controlled airbag groups, each airbag group corresponding to a body surface section of the therapeutic garment body. For example, it can be divided into six sections: left upper arm section, right upper arm section, front trunk section, back trunk section, left leg section, and right leg section. The number of sections can be increased or decreased according to clinical needs. Each airbag group consists of several strip-shaped airbags extending longitudinally along the therapeutic garment body. A gap of 3 to 5 mm is left between adjacent strip-shaped airbags 210 to allow for air circulation and moisture penetration.

[0042] All the strip-shaped airbags 210 in the same airbag group are interconnected by a narrow airway bridge 220. The narrow airway bridge is a flexible tube with an inner diameter of 1 to 1.5 mm. It connects the air chambers of two airbags 210 at the ends or middle of adjacent airbags 210 to ensure uniform air pressure in the same airbag group. The airbag 210 is made of medical-grade TPU film with a single layer thickness of 0.08 to 0.15 mm. It is made by hot-pressing two layers of TPU film along the perimeter, which has good air tightness and flexibility and can bend with the patient's body movement and fabric deformation.

[0043] Each airbag assembly is connected to a common air source through an independent air passage. The common air source uses a single miniature diaphragm air pump, which is connected to a multi-channel solenoid valve assembly through the main air passage.

[0044] The multi-channel solenoid valve assembly includes multiple three-position solenoid valves corresponding to each airbag assembly. Each three-position solenoid valve has three working states: inflation, closed, and deflation. In the inflation position, the air pump output is connected to the corresponding airbag assembly through the valve, continuously inflating and pressurizing. In the closed position, the air passage of the corresponding airbag assembly is closed, maintaining the current air pressure. In the deflation position, the air passage of the corresponding airbag assembly is connected to the atmosphere, and the airbag 210 naturally deflates and contracts. The control signals of all solenoid valves are uniformly issued by a microcontroller, which can be integrated into a waist-mounted or shoulder-mounted control box. The control box also houses the air pump and a rechargeable lithium battery.

[0045] After the airbag assembly is inflated, it applies a uniform planar support pressure towards the body surface to the inner layer. The pressure range is preferably 10 to 25 mmHg. This pressure range can promote sufficient contact between the drug and the skin and transdermal absorption, while being lower than the capillary closure pressure to avoid affecting the skin's microcirculation.

[0046] The outermost layer 300 is the outermost structure of the treatment garment. It is made of microporous polytetrafluoroethylene (PTFE) film or medical-grade microporous polyurethane film with a thickness of 0.02 to 0.05 mm. Several air holes are opened on the outer layer 300. The air holes are connected along the thickness direction of the outer layer and the pore diameter is 0.3 to 1.0 mm. Each air hole corresponds to the position of each strip air bladder 210 in the air bladder layer 200. Each strip air bladder 210 has a row of air holes arranged longitudinally along the air bladder 210 on its outer side. That is, the air holes are located in the direction directly outside the air bladder 210.

[0047] When the airbag 210 is in the contracted state, the outer wall of the airbag 210 is in a low position, and there is a gap between it and the air hole. The air hole remains open, and external air can freely pass through the air hole into the inside of the treatment garment to achieve a breathable state. At this time, water mist applied to the outer surface of the treatment garment from the outside (such as an ultrasonic nebulizer or small spray bottle held by medical staff) can enter the inside of the treatment garment body through the open air hole, wet the inner layer of the wet response tightening fabric to trigger its contraction, or replenish the moisture required by the inner layer.

[0048] When the airbag 210 is inflated, the outer wall of the airbag 210 expands outward until it adheres to and presses against the inner surface of the outer layer 300, completely sealing the air holes from the inside. The sealing method between the outer wall of the airbag 210 and the air holes is a surface contact seal. Under the pressure of inflation, the TPU film of the airbag 210 undergoes elastic deformation, tightly adhering to the inner surface of the outer layer, covering the air holes, blocking the exchange path of gas and moisture through the air holes, making the outer layer in this area airtight, so as to maintain a humid environment in the inner layer and reduce moisture evaporation loss.

[0049] Through the direct linkage mechanism of airbag 210 expansion → sealing the air hole → becoming airtight, and airbag 210 contraction → detaching from the air hole → becoming airtight, the switching between the outer layer's airtight and airtight states is realized. This mechanism utilizes the airbag 210's own expansion and contraction displacement to directly open and close the air hole.

[0050] In some embodiments, at least one temperature and humidity sensor is provided in each body surface zone. The temperature and humidity sensor is preferably a flexible thin-film temperature and humidity composite sensor with a thickness of less than 0.5 mm. It is attached between the inner layer 100 and the air bladder layer 200, close to the skin side to accurately sense the skin surface microenvironment. The sensor is connected to the microcontroller through a flexible printed circuit or a fine wire.

[0051] The microcontroller has built-in temperature thresholds for each zone. The first preset threshold is set to 34 to 35°C, which corresponds to the warning value for elevated skin temperature in patients with atopic dermatitis. The second preset threshold is set to 31 to 32°C, which corresponds to the safe return value after sufficient cooling.

[0052] During operation, the microcontroller continuously polls the temperature and humidity sensor signals of each zone. When the temperature of any zone exceeds the first preset threshold, the microcontroller controls the multi-channel solenoid valve group to switch the valve of the corresponding airbag group to the deflation position. The airbag 210 contracts, and after the airbag 210 contracts, the outer wall surface separates from the air hole, the air hole is open, and the external ambient air enters the inside of the treatment garment through the air hole. The moisture in the inner layer evaporates and takes away the heat, and the skin temperature drops. When the temperature of the zone drops below the second preset threshold, the microcontroller controls the valve to switch to the inflation position, the air pump starts, the airbag 210 is re-inflated and expands, the outer wall surface of the airbag 210 re-attaches and seals the air hole, the outer layer returns to an airtight state, prevents moisture from continuing to evaporate, and maintains a humid environment.

[0053] Each zone is controlled completely independently. For example, the patient's left leg has a normal temperature due to less activity, so its airbag group remains inflated and the pores are sealed to prevent air leakage. However, the back temperature rises due to heat accumulation from lying flat, so this zone automatically deflates and contracts, allowing the pores to open and cool down without interfering with each other. This independent zone control mechanism achieves a fine dynamic balance between moisturizing and evaporative cooling.

[0054] In some embodiments, the limb portion 10 and the limb portion 20 of the therapeutic garment body are respectively provided with openings extending longitudinally thereon. In the limb portion 10, the opening is longitudinally located at the center of the chest; in the limb portion 20, the opening is longitudinally located at the front side of each limb. The two sides of the opening are provided with detachable connecting components, preferably fully open zippers.

[0055] When wearing the garment in a dry state, the detachable parts are separated, making the limb part 10 and the limb part 20 independent. Then, the zippers on each part are fully unzipped, and each part is fully unfolded into a flat surface. The patient lies flat and lays each unfolded part flat on the corresponding body part one by one, zips it up and down, and then uses the detachable parts to connect the limb part 10 and the limb part 20 into a whole. This flat wearing method completely avoids the action of putting on and taking off the garment by pulling it over the head or putting it on and taking it off, and further eliminates the risk of scratching the ointment. When the treatment is over, the detachable parts are separated and the zippers of each part are unzipped to remove the garment one by one. Even if the treatment garment is wet and tight at this time, it can be directly unfolded and taken off because the opening runs through each part longitudinally, without having to overcome the hugging force of the tight fabric to pull the entire garment off the limb.

[0056] The typical usage process of this invention is as follows:

[0057] S1 Preparation for application: The patient applies the prescription ointment to the rash area, and then applies a moisturizer all over the body to form a uniform ointment / moisturizer film on the skin surface.

[0058] S2 dry state wearing: Separate each part of the treatment garment from the limb part, unzip each part to unfold it, lay it flat to cover the corresponding body part one by one, zip it up, and use the detachable parts to splice the limb part and the four limbs into a whole. At this time, the treatment garment is in a dry state, the inner wet response tight fabric remains loose, the treatment garment is loose overall, and the wearing process will hardly scratch the ointment and moisturizer on the skin surface.

[0059] S3 triggers contraction. Water mist is sprayed onto the outer surface of the treatment garment using an external atomizing device. At this time, the pores of the outer layer are open. The airbag 210 is not yet inflated. The water mist enters the interior through the pores, wetting the inner layer of wet response shrinkage fabric. The shrinkage fibers trigger contraction when they come into contact with water. Each annular contraction zone automatically tightens along the circumference direction, and the inner layer closely adheres to the skin surface. If the water mist is applied evenly to all zones, the shrinkage fabric of all zones contracts synchronously.

[0060] When the S4 airbag 210 is pressurized and sealed, the control system is activated. The air pump inflates each airbag group to the preset pressure, and the airbag 210 expands. On the one hand, the airbag 210 applies uniform support pressure to the inner layer to enhance the transdermal absorption of drugs; on the other hand, the outer wall of the airbag 210 simultaneously adheres to and seals the outer layer pores, and the treatment garment enters a fully enclosed and moisturized state.

[0061] S5 zone dynamic control: During treatment, temperature and humidity sensors in each zone continuously monitor the temperature and humidity. When the skin temperature of a zone exceeds the threshold, the control system automatically deflates the airbag 210 in that zone, the airbag 210 contracts, the pores are open, and the outer layer switches to a breathable state to achieve evaporative cooling. After the temperature drops, it automatically re-inflates, the airbag 210 expands, the pores are sealed, and the moisturizing state is restored. During treatment, water mist can be replenished from the outside as needed to maintain the moisture of the inner layer.

[0062] After the S6 treatment is completed, the control system deflates all airbags, separates the detachable parts, unzips each part, and removes the treatment garment from the body one by one. After removal, it can be cleaned and disinfected. After the tightened fibers dry, they automatically return to a relaxed state and can be reused.

[0063] Finally, it should be noted that the above embodiments are only used to illustrate the technical solutions of the present invention and are not intended to limit it. Although the present invention has been described in detail with reference to preferred embodiments, those skilled in the art should understand that modifications or equivalent substitutions can be made to the technical solutions of the present invention without departing from the spirit and scope of the technical solutions of the present invention.

Claims

1. A detachable, modular, layered, water-locking, wet-wrapping therapeutic garment, comprising a garment body, wherein the garment body comprises, from the inside out, an inner layer, an air-filled layer, and an outer layer, wherein the inner layer is used to contact the skin of the affected area; characterized in that: The treatment garment has a split structure, including at least a limb part and four limbs. The limbs and four limbs are connected by detachable parts so that they can be worn independently by different parts. At least a portion of the inner layer is composed of a wet-responsive compressive fabric configured to be loose in a dry state, so that the garment body remains loose for easy wear and to prevent the ointment already applied to the skin from being scraped off during wear. Upon contact with the liquid, the inner layer tends to contract in a preset direction, causing it to automatically tighten and fit tightly to the body surface, thus adapting to patients of different body types and maintaining full contact between the medication and the skin.

2. The detachable modular layered water-locking wet-wrapping therapeutic garment according to claim 1, characterized in that: The wet-responsive shrinkage fabric is made of shrinkage fiber blended with at least one of cotton fiber, viscose fiber, polyester fiber or nylon fiber; the shrinkage fiber is made of hydrogel fiber that has been wet-stretched 2 to 50 times and then dried and shaped, and the shrinkage fiber shrinks along the stretching direction after contact with water-based liquid, while swelling in the radial direction to fill the gaps between fibers.

3. The detachable modular layered water-locking wet-wrapping therapeutic garment according to claim 2, characterized in that: The wet-response shrink fabric is distributed in a ring on the inner layer, forming at least one ring-shaped shrinkage area. The position of the ring-shaped shrinkage area corresponds to the chest area, waist area, upper arm area and / or thigh area when the therapeutic garment is worn on the human body. The shrinkage fibers in the ring-shaped shrinkage area are oriented circumferentially along the corresponding body surface area so that the shrinkage direction is the direction of tightening the circumference.

4. The detachable modular layered water-locking wet-wrapping therapeutic garment according to claim 1, characterized in that: The four limbs include a left upper limb, a right upper limb, a left lower limb, and a right lower limb. Each limb is detachably connected to the limb via the detachable component, so that each part can be worn and removed independently.

5. The detachable modular layered water-locking wet-wrapping therapeutic garment according to claim 1, characterized in that: Both the limbs and the four extremities are provided with openings extending longitudinally thereon. The two sides of the openings are provided with detachable connecting components. The detachable connecting components are any one of zippers, Velcro, or snaps, so that the treatment garment can be fully unfolded and laid flat for wearing in a dry state, avoiding the scraping of the ointment when putting it on and taking it off.

6. The detachable modular layered water-locking wet-wrapping therapeutic garment according to claim 1, characterized in that: The airbag layer includes at least two independently controlled airbag groups, each airbag group corresponding to a body surface section of the therapeutic garment body; each airbag group is connected to an air source through an independent air passage, and the air passage is equipped with a valve group for controlling the inflation, pressure holding and deflation states of each airbag group; when the inner layer is wet and shrinks to fit the body surface, the airbag group inflates and expands, applying uniform support pressure to the inner layer in the direction towards the body surface.

7. The detachable modular layered water-locking wet-wrapping therapeutic garment according to claim 6, characterized in that: The outer layer has a number of air holes, which are connected along the thickness direction of the outer layer. Each air hole corresponds to the position of each air bladder in the air bladder layer and is located on the outside of each air bladder. When the airbag inflates, the outer wall of the airbag adheres to and seals the air pores, making the outer layer airtight in the corresponding area to maintain a moist environment for the inner layer. When the airbag contracts, the outer wall of the airbag detaches from the air hole, the air hole is open, and the outer layer is breathable in the corresponding area. At this time, water mist applied from the outside to the surface of the outer layer enters the interior of the treatment garment through the air hole, wets the wet response compression fabric to trigger its contraction.

8. The detachable modular layered water-locking wet-wrapping therapeutic garment according to claim 7, characterized in that: Each of the aforementioned body surface zones is equipped with a temperature and humidity sensor; the valve assembly is configured to control each zone independently based on the monitoring signals from the temperature and humidity sensors. When the temperature of any of the aforementioned body surface zones exceeds the first preset threshold, the airbag group corresponding to that zone is controlled to deflate and contract, so that the pores on the outer layer of that zone are open, thereby reducing the skin temperature through moisture evaporation. When the temperature of the body surface zone drops below the second preset threshold, the airbag group corresponding to the zone is inflated and expanded, so that the outer wall of the airbag reseals the pores on the outer layer of the zone to maintain a humid environment.

9. The detachable modular layered water-locking wet-wrapping therapeutic garment according to claim 6, characterized in that: Each airbag in the airbag layer is a strip-shaped airbag extending longitudinally along the body of the treatment garment, with gaps between adjacent strip-shaped airbags; all strip-shaped airbags in the same airbag group are interconnected through narrow air passage bridges; the airbags are made of medical-grade TPU film.

10. The detachable modular layered water-locking wet-wrapping therapeutic garment according to claim 1, characterized in that: The inner layer of the wet-responsive compression fabric carries an antibacterial component, which includes one or more of chitosan, ε-polylysine, or titanium carbide nanosheets; the antibacterial component is gradually released as the fibers swell after the wet-responsive compression fabric comes into contact with a liquid.

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