Temperature-adjustable ice bag for fracture lower limb edema and control method of temperature-adjustable ice bag

Abstract

The invention belongs to the technical field of lower limb fracture edema cold compress, and relates to a temperature-adjustable ice bag for fracture lower limb edema and a control method thereof, the temperature-adjustable ice bag comprises an outer fixed protective layer, a middle temperature control energy storage layer and an inner contact buffer layer; a medical-grade phase change energy storage material, a temperature control chip, a temperature sensor and a lithium battery are arranged in the middle temperature control energy storage layer, the temperature control chip is electrically connected with the temperature sensor and the lithium battery, the temperature sensor collects the temperature of the cold compress face in real time, and the temperature control chip adjusts the refrigeration power according to a set value and is matched with the medical-grade phase change energy storage material to stably maintain the temperature. Accurate temperature control within the range of 0-15 DEG C is achieved, the temperature error is smaller than or equal to + / -1 DEG C, and the problem of frostbite or invalid cold compress caused by temperature shock of a traditional ice bag is solved.

Description

Technical Field

[0001] This invention relates to the field of cold compress technology for lower limb fracture edema, and particularly to an adjustable temperature ice pack for lower limb fracture edema and its control method. Background Technology

[0002] Lower limb fractures are common injuries in orthopedic clinics. Postoperative and rehabilitation periods are prone to symptoms such as lower limb edema and pain. Cold compresses are a routine clinical nursing method that can significantly reduce early postoperative pain and effectively control edema. In the acute inflammatory phase after trauma or soft tissue injury, ice compresses can reduce the metabolic demand of damaged tissues to reduce secondary hypoxia injury. Currently, most cold compress ice packs used in clinical practice are traditional gel ice packs or water-filled ice packs, but they have the following problems: 1. Uncontrollable temperature: Traditional ice packs have an initial temperature that is too low (below 0℃), which can easily cause frostbite; and the temperature rises rapidly over time, making it impossible to maintain a stable cold compress temperature, affecting the effect of reducing swelling and pain; 2. Poor fit: Ice packs are mostly flat structures, which cannot match the physiological curves of the lower limbs, making them prone to displacement and slippage, resulting in incomplete coverage of the cold compress area and low nursing efficiency; 3. Insufficient ease of use: They need to be frozen and prepared in advance, and cannot be used immediately after opening, increasing the frequency of replacement and requiring nursing staff to monitor them over a time; 4. Insufficient reusability and safety: Traditional ice packs are prone to breaking and leakage, are difficult to disinfect, do not meet the requirements for hospital infection control, and cannot be used for patients who require external fixation with plaster casts or braces. Summary of the Invention

[0003] The purpose of this invention is to solve the technical problems existing in the background technology, such as uncontrollable temperature, poor fit, insufficient ease of use, and insufficient reusability and safety. To this end, an adjustable temperature ice pack for lower limb edema caused by fracture and its control method are provided.

[0004] To achieve the above objectives, the technical solution adopted by the present invention is as follows:

[0005] A temperature-regulating ice pack for lower limb edema caused by fracture includes an outer fixation and protective layer, a middle temperature-controlled energy storage layer, and an inner contact and buffer layer, which are sequentially attached from the outside to the inside. The middle temperature-controlled energy storage layer contains a medical-grade phase change energy storage material, a temperature control chip, a temperature sensor, and a lithium battery. The temperature control chip is electrically connected to the temperature sensor and the lithium battery. The temperature sensor collects the temperature of the cold compress surface in real time, and the temperature control chip adjusts the cooling power according to a set value, working in conjunction with the medical-grade phase change energy storage material to stably maintain the temperature.

[0006] The following is a further defined technical solution of the present invention: the outer fixing protective layer is set as a high-elasticity breathable medical non-woven fabric composite waterproof PU coating.

[0007] The following is a further defined technical solution of the present invention: the outer surface of the outer fixing protective layer is provided with a temperature display window, a temperature control button area and a usage time scale; the side of the outer fixing protective layer is connected with an elastic Velcro strap; the inner side of the elastic Velcro strap is provided with anti-slip silicone particles to achieve pressure-free fixation.

[0008] The following is a further defined technical solution of the present invention: the inner contact buffer layer is made of medical silicone composite flexible sponge, and its surface is provided with honeycomb-shaped air pores.

[0009] The following is a further defined technical solution of the present invention: the inner contact buffer layer is detachably connected to the outer fixed protective layer by a sealing zipper.

[0010] The following is a further defined technical solution of the present invention, which also includes a main control module. The main control module includes a physical temperature control button, a timer module and a low temperature alarm module. The physical temperature control button is used to preset multiple working modes. The timer module is used to shut down the device at a set time. The low temperature alarm module is used to trigger an audible and visual alarm when the temperature is below 0°C.

[0011] A method for controlling an adjustable temperature ice pack for lower limb edema caused by fracture includes: a temperature sensor collecting the temperature of the cold compress surface in real time and transmitting the data to a temperature control chip; the temperature control chip automatically adjusts the cooling power according to the preset temperature, and works with medical-grade phase change energy storage material to stably maintain the temperature, achieving precise temperature control from 0℃ to 15℃, keeping the temperature error within ±1℃; when the temperature is below 0℃, a low-temperature alarm module triggers an audible and visual alarm, and the temperature control chip automatically heats up.

[0012] Compared with the prior art, the present invention has the following technical effects: 1. Precise temperature control and safety protection: It achieves precise temperature control within the range of 0℃~15℃, with a temperature error of ≤±1℃, avoiding the problems of frostbite or ineffective cold compress caused by sudden temperature changes of traditional ice packs; the low temperature alarm and timed shutdown function can effectively avoid the risk of prolonged cold compress, and the incidence of frostbite is reduced to 0 in clinical use; 2. Fits snugly and efficiently, providing precise care: The segmented ergonomic design increases the cold compress coverage to over 95%, compared to traditional ice packs (coverage of approximately 60%), resulting in a 30% faster reduction in edema and a 2-3 point decrease in patient pain scores; the pressure-free fixation design does not affect lower limb blood circulation and can be used in conjunction with plaster casts and braces, expanding its applicability to 100% of scenarios. 3. Ready to use, convenient and efficient: It can reach the target temperature in 3 minutes after charging, without the need for pre-freezing. It can shorten the response time by 90% in emergency and transport scenarios, and significantly improve nursing efficiency; the weight of a single segment is ≤300g, which improves patient tolerance and increases compliance from 65% with traditional ice packs to over 90%. 4. It can be repeatedly refilled and used for cooling, with a single lifespan of ≥500 uses. Compared to disposable ice packs (costing approximately 5 yuan per use), the nursing cost per patient is reduced by 80%. 5. The detachable, washable, and disinfectable design meets hospital infection control requirements, reduces the frequency of consumable replacement, and lowers the department's annual consumable costs by 40%. 6. Improve the safety and comfort of cold compress care for patients with lower limb fractures in the department, improve the patient's medical experience, and increase patient satisfaction to over 95%; 7. Adaptable to clinical and home rehabilitation scenarios, helping patients manage themselves after discharge, reducing the frequency of follow-up visits, and alleviating the pressure on medical resources.

[0013] The present invention will be further described below with reference to the accompanying drawings and embodiments. Attached Figure Description

[0014] To more clearly illustrate the technical solutions in the embodiments of the present invention or the prior art, the drawings used in 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 based on these drawings without creative effort.

[0015] Figure 1 This is a schematic diagram of the planar structure of the outer fixed protective layer in this invention; Figure 2 This is a connection diagram of the electronic control system of the present invention.

[0016] Attached reference numerals: 1. Outer protective layer; 2. Temperature display window; 3. Temperature control button area; 4. Elastic Velcro strap. Detailed Implementation

[0017] To make the above-mentioned objects, features, and advantages of the present invention more apparent and understandable, specific embodiments of the present invention will be described in detail below with reference to the accompanying drawings. Many specific details are set forth in the following description to provide a thorough understanding of the present invention. However, the present invention can be practiced in many other ways different from those described herein, and those skilled in the art can make similar modifications without departing from the spirit of the present invention. Therefore, the present invention is not limited to the specific embodiments disclosed below.

[0018] In the description of this invention, it should be understood that the terms "upper", "lower", "front", "rear", "left", "right", "vertical", "horizontal", "top", "bottom", "inner", "outer", etc., indicate the orientation or positional relationship based on the orientation or positional relationship shown in the accompanying drawings. They are only for the convenience of describing this invention and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, or be constructed and operated in a specific orientation. Therefore, they should not be construed as limitations on this invention.

[0019] In the embodiments of the present invention, unless otherwise explicitly specified and limited, the terms "installation," "connection," "linking," "fixing," etc., should be interpreted broadly. For example, they can refer to a fixed connection, a detachable connection, or an integral part; they can refer to a mechanical connection or an electrical connection; they can refer to a direct connection or an indirect connection through an intermediate medium; they can refer to the internal communication of two components or the interaction between two components. Those skilled in the art can understand the specific meaning of the above terms in the embodiments of the present invention according to the specific circumstances.

[0020] like Figure 1 and 2 As shown, this embodiment provides an adjustable temperature ice pack for lower limb edema caused by fractures. It mainly includes an outer fixation and protective layer 1, a middle temperature control and energy storage layer, and an inner contact and buffer layer that are attached in sequence. The whole structure is a segmented modular structure that can be disassembled and combined according to the fracture site.

[0021] 1. Outer Fixing and Protective Layer 1: It is made of high-elasticity, breathable medical non-woven fabric with a waterproof PU coating; its surface is equipped with a temperature display window 2, a temperature control button area 3, and a usage time scale; the side is connected to an adjustable elastic Velcro strap 4, with anti-slip silicone particles on the inside of the strap to achieve pressure-free fixation. Therefore, the function of the outer fixing and protective layer 1 is to fix the ice pack to the affected limb, prevent water leakage, and avoid condensation from wetting the dressing.

[0022] 2. Middle Temperature-Controlled Energy Storage Layer: This layer incorporates medical-grade phase change energy storage materials, a micro-semiconductor temperature control chip, a high-precision temperature sensor, and a rechargeable lithium battery. Connections: The temperature control chip is electrically connected to the temperature sensor and lithium battery. The temperature sensor collects the temperature of the cold compress area in real time, and the temperature control chip adjusts the cooling power according to the set value to maintain a stable temperature. Therefore, the function of the middle temperature-controlled energy storage layer is to achieve precise temperature control from 0℃ to 15℃, with a temperature error ≤ ±1℃, thus avoiding the risk of frostbite.

[0023] 3. Inner Contact Buffer Layer: Made of medical-grade silicone composite flexible sponge with honeycomb-shaped breathable pores on the surface. It is detachably connected to the outer fixed protective layer 1 via a sealed zipper. Therefore, the function of the inner contact buffer layer is to buffer the stimulation of cold compresses, avoid local pressure affecting blood circulation in the lower limbs, and facilitate removal, washing, and replacement.

[0024] 4. Main Control Module: This includes a main control chip, physical temperature control buttons, a timer module, and a low-temperature alarm module. The physical temperature control buttons have three preset temperature settings: 4℃ (low), 10℃ (medium), and 15℃ (high). The timer module supports 10 / 20 / 30-minute timer shutdown. The low-temperature alarm module triggers an audible and visual alarm when the temperature drops below 0℃.

[0025] The electronic control system comprises medical-grade phase change energy storage materials, a micro-semiconductor temperature control chip, a high-precision temperature sensor, a rechargeable lithium battery, and a main control module. Figure 2 As shown.

[0026] In summary, the various components work together, specifically: 1. Temperature Control Synergy: The temperature sensor collects the temperature of the cold compress surface in real time and transmits the data to the micro semiconductor temperature control chip; the temperature control chip automatically adjusts the cooling power according to the preset temperature, and works with medical-grade phase change energy storage material to stably maintain the temperature, keeping the temperature error within ±1℃; when the temperature is below 0℃, the low temperature alarm module triggers an audible and visual alarm, and at the same time the temperature control chip automatically heats up to avoid frostbite.

[0027] 2. Structural fit and coordination: The segmented ankle, calf, and thigh sections can be disassembled and combined according to the fracture site, and the ergonomic arc design fits the physiological curve of the lower limb.

[0028] 3. The outer adjustable Velcro strap, combined with the inner anti-slip silicone particles, provides pressure-free fixation, preventing the ice pack from shifting and ensuring that the cold compress area fully covers the edema area.

[0029] 4. Safe, reusable and synergistic: The inner contact buffer layer is detachably connected to the outer layer via a sealed zipper, making it easy to disassemble, wash and replace; the outer waterproof PU coating can be directly wiped with alcohol for disinfection, and the double-layer sealing structure prevents leakage, allowing for repeated use and meeting hospital infection control requirements.

[0030] Therefore, this invention can achieve precise temperature control within the range of 0℃ to 15℃, with a temperature error of ≤±1℃, avoiding the problems of frostbite or ineffective cold compress caused by sudden temperature changes in traditional ice packs; the low-temperature alarm and timed shutdown functions can effectively avoid the risk of prolonged cold compresses, reducing the incidence of frostbite to 0 in clinical use; the segmented ergonomic design increases the cold compress coverage to over 95%, compared to traditional ice packs (coverage of about 60%), the edema reduction speed is increased by 30%, and the patient's pain score is reduced by 2-3 points; the pressure-free fixation design does not affect the blood circulation of the lower limbs, and can be used in conjunction with plaster casts and braces, increasing the applicable scenario coverage to 100%; it can reach the target temperature in 3 minutes after charging, without the need for pre-freezing, which can shorten the response time by 90% in emergency and transport scenarios, significantly improving nursing efficiency; the weight of a single segment is ≤300g, improving patient tolerance, and increasing compliance from 65% of traditional ice packs to over 90%. It can be repeatedly refilled and used for cooling, with a single lifespan of ≥500 uses. Compared to disposable ice packs (costing approximately 5 yuan per use), the cost of nursing care per patient is reduced by 80%. Its detachable, washable, and disinfectable design meets hospital infection control requirements, reduces the frequency of consumable replacements, and lowers the department's annual consumable costs by 40%. It improves the safety and comfort of cold compress care for lower limb fracture patients in the department, enhances the patient experience, and increases patient satisfaction to over 95%. It is suitable for both clinical and home rehabilitation scenarios, assisting patients in self-management after discharge, reducing the frequency of follow-up visits, and alleviating pressure on medical resources.

[0031] The above description is merely a preferred embodiment of the present invention and is not intended to limit the present invention in any way. Any person skilled in the art can make many possible variations and modifications to the technical solution of the present invention, or modify it into equivalent embodiments, without departing from the scope of the present invention's technical solution. Therefore, all equivalent changes made based on the shape, structure, and principle of the present invention without departing from the scope of the present invention's technical solution should be covered within the protection scope of the present invention.

Claims

1. A temperature-regulating ice pack for treating lower limb edema caused by fracture, characterized in that, It includes an outer fixing and protective layer, a middle temperature-controlled energy storage layer, and an inner contact buffer layer, which are sequentially bonded from the outside to the inside. The middle temperature-controlled energy storage layer contains medical-grade phase change energy storage material, a temperature control chip, a temperature sensor, and a lithium battery. The temperature control chip is electrically connected to the temperature sensor and the lithium battery. The temperature sensor collects the temperature of the cold compress surface in real time, and the temperature control chip adjusts the cooling power according to the set value to stably maintain the temperature in conjunction with the medical-grade phase change energy storage material.

2. The temperature-regulating ice pack for lower limb edema caused by fracture as described in claim 1, characterized in that, The outer protective layer is made of high-elasticity, breathable medical non-woven fabric composite waterproof PU coating.

3. The temperature-regulating ice pack for lower limb edema caused by fracture as described in claim 2, characterized in that, The outer surface of the outer fixing protective layer is provided with a temperature display window, a temperature control button area, and a usage time scale. The side of the outer fixing protective layer is connected with an elastic Velcro strap, and the inner side of the elastic Velcro strap is provided with anti-slip silicone particles to achieve pressure-free fixation.

4. The temperature-regulating ice pack for lower limb edema caused by fracture as described in claim 1, characterized in that, The inner contact buffer layer is made of medical silicone composite flexible sponge, and its surface has honeycomb-shaped air pores.

5. The temperature-regulating ice pack for lower limb edema caused by fracture as described in claim 4, characterized in that, The inner contact buffer layer is detachably connected to the outer fixed protective layer via a sealing zipper.

6. The temperature-regulating ice pack for lower limb edema caused by fracture as described in claim 1, characterized in that, It also includes a main control module, which includes a physical temperature control button, a timer module and a low temperature alarm module. The physical temperature control button is used to preset multiple working modes, the timer module is used to shut down the machine at a set time, and the low temperature alarm module is used to trigger an audible and visual alarm when the temperature is below 0°C.

7. A method for controlling the temperature of an adjustable ice pack for lower limb edema caused by fracture as described in any one of claims 1-6, characterized in that, include: The temperature sensor collects the temperature of the cold compress surface in real time and transmits the data to the temperature control chip; The temperature control chip automatically adjusts the cooling power according to the preset temperature, and works with medical-grade phase change energy storage materials to maintain a stable temperature, achieving precise temperature control from 0℃ to 15℃, keeping the temperature error within ±1℃; when the temperature is below 0℃, the low temperature alarm module triggers an audible and visual alarm, and the temperature control chip automatically heats up.

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