Reusable cooling elastic bandage and manufacturing method thereof

Abstract

The invention discloses a reusable cooling elastic bandage and a manufacturing method thereof, the reusable cooling elastic bandage comprises a bandage body and a plurality of pressurizing balls, the pressurizing balls are fixed on the surface of the bandage body, the pressurizing balls are filled with a cooling medium, and the bandage body is made of an elastic material. The pressurizing balls are fixed on the bandage body, and the pressurizing balls have elasticity and can adapt to complex curved surfaces of joints of a human body, so that the fitting degree of the bandage is improved, and the treatment effect is improved; the pressurizing ball body is filled with the cooling medium, so that the pressurizing ball body is attached to the joint, the local cooling effect is achieved, treatment is more comprehensive, swelling can be relieved, and pain can be relieved. The bandage body is made of nylon materials and can be repeatedly used, and compared with a traditional disposable cold compress patch or a traditional disposable condensation gel bandage, the use cost is greatly reduced, and meanwhile the bandage is more environmentally friendly.

Description

Technical Field

[0001] The invention relates to the field of medical bandages, and in particular to a reusable cooling elastic bandage and a manufacturing method thereof. Background Art

[0002] Joint sprains are common sports injuries in daily life, and their early treatment plays a key role in reducing swelling, relieving pain and promoting recovery. Conventional treatment methods include ice compresses and elastic bandages for pressure dressing. However, traditional ice compresses are difficult to fully fit uneven joints and cannot be in close contact with the painful area, which often leads to poor treatment effects. Although conventional elastic bandages can provide a pressure effect, they lack a cooling function and cannot combine with the effect of ice compresses.

[0003] To solve these problems, some products that combine cold compress and pressurization functions have appeared on the market, such as cold compress patches, cold gel bandages, etc. However, these products still have many shortcomings: first, these cold compress patches are mostly disposable, resulting in high costs and environmental pollution; second, the cooling effect is limited, usually only lasting for a short time, requiring frequent replacement, and inconvenient to use; and these products also fail to solve the problem of fitting the complex curved surfaces of joints, and the treatment effect is still poor. Summary of the invention

[0004] The purpose of the present invention is to provide a reusable cooling elastic bandage and a manufacturing method thereof, so as to solve one or more technical problems existing in the above-mentioned background technology.

[0005] To achieve this object, the present invention adopts the following technical solutions: A reusable cooling elastic bandage comprises a bandage body and a plurality of pressurized balls, wherein the plurality of pressurized balls are fixed on the surface of the bandage body and the pressurized balls are filled with a cooling medium, and the bandage body is made of elastic material.

[0006] Preferably, a plurality of the pressurizing balls are evenly arranged in the middle of the bandage body.

[0007] Preferably, the pressurized sphere is a latex ball, and the latex ball is formed by solidifying natural latex or synthetic latex material.

[0008] Preferably, the cooling medium is filled into the latex ball by injection, and the cooling medium is pure water or medical gel.

[0009] Preferably, the surface of the bandage body is coated with an adhesive layer, and the adhesive layer is formed by curing an adhesive.

[0010] Preferably, the bandage body is formed by weaving nylon elastomer yarn; and the pressurizing ball is fixed to the bandage body by sewing or ultrasonic welding.

[0011] The present invention also provides a method for making a reusable cooling elastic bandage, the method comprising the following steps: (1) Making latex balls; after pre-treating the latex raw material, forming the latex raw material into a latex ball through a micro injection molding process, and reserving an injection hole on the latex ball; (2) Injecting cooling medium: Select cooling medium, inject a certain amount of cooling medium into the latex ball, and seal the injection hole to form a pressurized sphere; (3) Making a bandage body; weaving nylon elastomer yarn to form a bandage body; (4) The pressurized spheres injected with the cooling medium are fixed on the bandage body in a predetermined arrangement.

[0012] Preferably, in step (1), natural latex or synthetic latex is selected as the latex raw material, and the latex raw material is pretreated by filtering and concentrating; the pretreated latex raw material is added to the barrel of a micro-injection molding machine, the latex raw material is heated until it is molten, and the molten latex raw material is injected into the mold cavity, and the latex injected into the cavity is cooled and solidified in the mold. After cooling is completed, the molded latex balls are ejected from the mold, and the demolded latex balls are subjected to preliminary quality inspection to check the size and surface quality, and reject unqualified products.

[0013] Preferably, in step (2), pure water or medical gel is selected as the cooling medium, and the prepared cooling medium is quantitatively extracted into the injection device; the injection device is started, and a quantitative cooling medium is injected into the latex ball through the reserved injection hole. After the injection is completed, an ultrasonic welding device is used to weld the area around the injection hole according to preset welding parameters, so that the materials around the injection hole are fused with each other to achieve sealing and form a pressurized sphere; after the welding is completed, the pressurized sphere is quality inspected to check the sealing effect to ensure that the cooling medium will not leak.

[0014] Preferably, in step (4), the injected pressurized spheres are fixed to the bandage body according to a predetermined arrangement structure by sewing or ultrasonic welding, to ensure that the pressurized spheres are firmly fixed and will not fall off or move during use.

[0015] The beneficial effects of the present invention are as follows: by fixing a plurality of pressurized balls on the bandage body, the pressurized balls are elastic and can adapt to the complex curved surfaces of various joints of the human body, thereby improving the fit of the bandage and thus improving the treatment effect; by filling the interior of the pressurized balls with a cooling medium, the pressurized balls fit the joints and achieve a local cooling effect, making the treatment more comprehensive, relieving both swelling and pain. The bandage body is made of nylon material and is reusable. Compared with traditional disposable cold compresses or cold gel bandages, the use cost is greatly reduced and it is also more environmentally friendly. BRIEF DESCRIPTION OF THE DRAWINGS

[0016] The accompanying drawings further illustrate the present invention, but the contents in the accompanying drawings do not constitute any limitation to the present invention.

[0017] Figure 1 It is a schematic diagram of the overall structure of one embodiment of the present invention; Figure 2 It is a schematic diagram of the internal structure of one embodiment of the present invention. DETAILED DESCRIPTION

[0018] The technical solution of the present invention is further described below with reference to the accompanying drawings and through specific implementation methods.

[0019] A reusable cooling elastic bandage of this embodiment is shown in the attached Figure 1 and 2 , including a bandage body 1 and a plurality of pressurized balls 2, the plurality of pressurized balls 2 are fixed on the surface of the bandage body 1, the pressurized balls 2 are filled with a cooling medium 3, and the bandage body 1 is made of elastic material.

[0020] This embodiment fixes multiple pressurized balls 2 on the bandage body 1. The pressurized balls 2 are elastic and can be elastically deformed when squeezed, so that the bandage can adapt to the complex curved surfaces of various joints of the human body and keep fitting with the joints to be bandaged, thereby improving the fit and ensuring the treatment effect; by filling the cooling medium 3 inside the pressurized balls 2, the pressurized balls 2 fit the joints and achieve a local cooling effect, making the treatment more comprehensive, which can relieve both swelling and pain. The bandage body 1 made of elastic material makes the bandage easy to wear and adjust to meet the needs of different patients.

[0021] Preferably, a plurality of pressurized balls 2 are evenly arranged in the middle of the bandage body 1. By evenly arranging the pressurized balls 2 in the middle of the bandage body 1, the pressurized balls 2 are concentrated in the pressurized area of ​​the bandage body 1, and the contact between the pressurized balls 2 and the human joints enables the bandage of this embodiment to better adapt to these curved surfaces, improve the fit of the bandage, ensure that the pressurization and cooling effects can accurately act on the bandaged joints, improve the treatment effect, and avoid easy slipping or displacement.

[0022] Preferably, the pressurized sphere 2 is a latex ball, which is formed by solidifying natural latex or synthetic latex material. The pressurized sphere 2 made of latex material utilizes the excellent elasticity and flexibility of latex material, so that the latex ball can quickly return to its original state after being compressed, ensuring that it fits the patient's joint surface. At the same time, the softness of the latex ball also improves the comfort of the bandage and reduces the sense of oppression when worn for a long time. In addition, after the latex material is cured, it has strong durability and wear resistance, and can maintain a stable pressurization effect, so that the bandage of this embodiment can be reused.

[0023] Preferably, the cooling medium 3 is filled in the latex ball by injection. After the latex ball is prepared, the cooling medium 3 is injected into the latex ball by an injection device to fill the cooling medium 3. After the filling is completed, the opening of the latex ball is sealed by heat sealing, chemical cross-linking, etc. to prevent leakage of the filler.

[0024] Furthermore, the cooling medium 3 is pure water or medical gel. Pure water or medical gel is used as the cooling medium 3 to fill the pressurized sphere 2 to ensure that the low temperature treatment effect is long-lasting and stable. After tests such as temperature stability and pressure stability, pure water or medical gel can maintain stable performance under different use conditions. After biocompatibility testing, the latex ball filled with medical gel is harmless to the human body and has good biocompatibility.

[0025] Preferably, the surface of the bandage body 1 is coated with an adhesive layer 4, which is formed by curing an adhesive. By forming the adhesive layer 4 on the surface of the bandage body 1, the adhesiveness of the bandage is improved, so that the bandage can fit more closely on the skin, avoiding the problem of slipping or shifting.

[0026] Preferably, the bandage body 1 is woven from nylon elastomer yarns. In this embodiment, nylon elastomer yarns are used to weave the basic shape of the bandage, and the nylon elastomer material has toughness and elasticity, so that the bandage has excellent elasticity and mechanical properties in a low temperature environment, and also has the superior wear resistance, oil resistance and friction resistance of nylon, and is reusable and biodegradable. In addition, during the weaving process, the weaving density and elasticity can be adjusted as needed to obtain the desired bandage performance to meet the needs of different patients.

[0027] Preferably, the pressurized spheres 2 are fixed to the bandage body 1 by sewing or ultrasonic welding. Using a knitting tool, a sewing machine or an ultrasonic welding device, the small pressurized spheres 2 are knitted, sewn or welded to the bandage body 1 according to a predetermined arrangement structure, ensuring that each pressurized sphere 2 is firmly fixed at a predetermined position and will not fall off or move.

[0028] The method of using the bandage of this embodiment is: cool the bandage or refrigerate it until it reaches an ideal low temperature state. Take out the bandage and quickly tie it on the sprained joint to ensure that the small latex balls fit the skin tightly. Adjust the tightness of the bandage according to the condition to achieve the best compression effect.

[0029] This embodiment also provides a method for making a reusable cooling elastic bandage, the method comprising the following steps: (1) Making latex balls; after pre-treating the latex raw material, forming the latex raw material into a latex ball through a micro injection molding process, and reserving an injection hole on the latex ball; (2) Injecting cooling medium: Select cooling medium, inject a certain amount of cooling medium into the latex ball, and seal the injection hole to form a pressurized sphere; (3) Making a bandage body; weaving nylon elastomer yarn to form a bandage body; (4) The pressurized spheres injected with the cooling medium are fixed on the bandage body in a predetermined arrangement.

[0030] Preferably, in step (1), a mold is manufactured according to the designed size and shape of the pressurized ball and the injection hole and other structures to be reserved. The dimensional tolerance of the mold cavity is controlled within ±10μm, and the surface roughness reaches Ra0.01 - 0.1μm, ensuring that the molded latex ball has accurate size and smooth surface; Select natural latex or synthetic latex as latex raw material, remove impurities in the latex raw material by filtering, and use concentration process to increase the concentration of latex, complete the pretreatment of latex raw material and enhance its molding performance.

[0031] This embodiment realizes the molding of latex balls by micro injection molding. The specific operation is to add the pretreated latex raw material into the barrel of the micro injection molding machine, wait for the barrel heating system to heat the latex to a suitable melting temperature, if natural latex is selected, it is heated to 120-150°C, if synthetic latex is selected, it is heated to 130-180°C; start injection molding, and inject the molten latex into the mold cavity with precisely controlled injection pressure and speed through a precise screw drive system. The injection pressure can be set to 50-50MPa, and the injection speed can be set to 0.1-10mm / s, to ensure that the latex fills the mold quickly and evenly, and avoid defects such as lack of material and bubbles; In other embodiments, the latex raw material can also be dispersed into tiny latex particles by an emulsifying device to form a precursor of latex balls, and then the latex particles are subjected to a curing treatment of heating or chemical cross-linking to form stable latex balls.

[0032] The latex injected into the cavity is cooled and solidified through circulating cooling in the mold. The cooling time is determined according to the wall thickness and size of the latex ball, generally 10-30 seconds. After cooling is completed, the molded latex ball is ejected from the mold using the ejector device of the injection molding machine. The latex ball after demolding is subjected to preliminary quality inspection to check indicators such as dimensional accuracy and surface quality, and unqualified products are eliminated.

[0033] Preferably, in step (2), pure water or medical gel is used as the cooling medium. If pure water is used, it is ensured that it has been purified to remove impurities and microorganisms; if medical gel is used, it is ensured that its ingredients meet the quality standards and have good biocompatibility and stability. The prepared cooling medium is quantitatively extracted through a high-precision injection device; Align the needle of the injection device filled with cooling medium to the injection hole reserved for the latex ball and prepare for the injection operation. At the same time, debug the ultrasonic welding equipment and set appropriate welding parameters according to the material and size of the latex ball, including welding power, welding time and welding pressure. Generally, the welding power can be set to 200-500W, the welding time can be set to 0.5-2 seconds, and the welding pressure can be set to 0.5-2MPa; After the preparation is completed, start the injection equipment and slowly inject a certain amount of cooling medium into the latex ball; after the injection is completed, quickly align the welding head of the ultrasonic welding equipment with the injection hole of the latex ball, and perform welding according to the set welding parameters. The high-frequency vibration energy generated by the ultrasonic welding head causes the latex material around the injection hole to quickly heat up and soften. Under the action of pressure, the materials around the injection hole fuse with each other to achieve sealing and form a pressurized sphere. After welding is completed, the latex ball is quality inspected again to check the sealing effect and ensure that the cooling medium will not leak.

[0034] Preferably, in step (3), nylon elastomer yarn is used to weave the bandage body, and the weaving density and elasticity can be adjusted according to the design requirements to meet the needs of different patients. During the weaving process, a position or structure for fixing the pressurized ball can be reserved on the surface of the bandage body, such as weaving a specific grid or reserving small holes to facilitate the subsequent operation of fixing the pressurized ball. In order to enhance the viscosity of the bandage body or provide other specific properties, a layer of adhesive can be coated on the surface of the bandage body or an adhesive treatment can be performed.

[0035] Preferably, in step (4), the quality-tested pressurized sphere is fixed to the bandage body by sewing, ultrasonic welding or other fixing methods. If sewing is used, a sewing machine or manual sewing can be used to sew the pressurized sphere firmly to the bandage body according to a predetermined arrangement structure; if ultrasonic welding is used, the welding parameters need to be readjusted to adapt to the combination of two different materials to ensure that each pressurized sphere is firmly fixed and will not fall off or move during use. During the fixing process, care should be taken to avoid damaging the pressurized sphere and the bandage body to ensure the integrity and performance of the product.

[0036] The technical principle of the present invention is described above in conjunction with specific embodiments. These descriptions are only for explaining the principle of the present invention and cannot be interpreted as limiting the scope of protection of the present invention in any way. Based on the explanations herein, those skilled in the art can associate other specific implementations of the present invention without paying creative labor, and these methods will fall within the scope of protection of the present invention.

Claims

1. A reusable cooling elastic bandage, characterized in that: The bandage comprises a bandage body and a plurality of pressurized balls, wherein the plurality of pressurized balls are fixed on the surface of the bandage body, the pressurized balls are filled with a cooling medium, and the bandage body is made of an elastic material.

2. A reusable cooling elastic bandage according to claim 1, characterized in that: A plurality of pressurizing balls are evenly arranged in the middle of the bandage body.

3. A reusable cooling elastic bandage according to claim 1, characterized in that: The pressurized sphere is a latex ball, and the latex ball is formed by solidifying natural latex or synthetic latex material.

4. A reusable cooling elastic bandage according to claim 3, characterized in that: The cooling medium is filled in the latex ball by injection; the cooling medium is pure water or medical gel.

5. A reusable cooling elastic bandage according to claim 1, characterized in that: The surface of the bandage body is coated with an adhesive layer, and the adhesive layer is formed by curing the adhesive.

6. A reusable cooling elastic bandage according to claim 1, characterized in that: The bandage body is formed by weaving nylon elastic yarn; the pressurized ball is fixed on the bandage body by sewing or ultrasonic welding.

7. A method for manufacturing a reusable cooling elastic bandage according to any one of claims 1 to 6, characterized in that: The method comprises the following steps: (1) Making latex balls; after pre-treating the latex raw material, forming the latex raw material into a latex ball through a micro injection molding process, and reserving an injection hole on the latex ball; (2) Injecting cooling medium: Select cooling medium, inject a certain amount of cooling medium into the latex ball, and seal the injection hole to form a pressurized sphere; (3) Making a bandage body; weaving nylon elastomer yarn to form a bandage body; (4) The pressurized spheres injected with the cooling medium are fixed on the bandage body in a predetermined arrangement.

8. The method for making a reusable cooling elastic bandage according to claim 7, characterized in that: In step (1), natural latex or synthetic latex is selected as the latex raw material, and the latex raw material is pretreated by filtering and concentrating; the pretreated latex raw material is added to the barrel of a micro injection molding machine, and the latex raw material is heated until it is molten, and then the molten latex raw material is injected into the mold cavity, and the latex injected into the cavity is cooled and solidified in the mold. After cooling is completed, the molded latex balls are ejected from the mold, and the demolded latex balls are subjected to preliminary quality inspection to check the size and surface quality, and reject unqualified products.

9. The method for making a reusable cooling elastic bandage according to claim 7, characterized in that: In step (2), pure water or medical gel is selected as the cooling medium, and the prepared cooling medium is quantitatively extracted into the injection device; the injection device is started, and a quantitative cooling medium is injected into the latex ball through the reserved injection hole. After the injection is completed, an ultrasonic welding device is used to weld the area around the injection hole according to preset welding parameters, so that the materials around the injection hole are fused with each other to achieve sealing and form a pressurized sphere; after the welding is completed, the pressurized sphere is quality inspected to check the sealing effect to ensure that the cooling medium will not leak.

10. The method for making a reusable cooling elastic bandage according to claim 7, characterized in that: In step (4), the injected pressurized spheres are fixed to the bandage body according to a predetermined arrangement structure by sewing or ultrasonic welding, ensuring that the pressurized spheres are firmly fixed and will not fall off or move during use.

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