A circulating cold compress device for orthopedic joint care
By simplifying the structure of the cold compress device and combining ice coolant and air expansion cold compress methods, the complexity and secondary injury problems of existing devices are solved, achieving a high-efficiency, portable, and low-energy-consumption cold compress effect.
Patent Information
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- 亳州市人民医院
- Filing Date
- 2025-02-26
- Publication Date
- 2026-07-10
AI Technical Summary
Existing circulating cold compress devices are complex in structure, large in size, and expensive, and can easily cause secondary damage to the patient's affected area.
The cold compress device with a simple structure achieves circulating cooling through a cooling cylinder, a liquid storage cylinder, and a micro pump. It utilizes the combination of ice block coolant and air expansion for cold compress. The inner layer of the cold compress sleeve is made of heat-conducting material, and the outer layer is made of heat-insulating material. The cold compress sleeve fits tightly to the affected area.
It achieves a highly efficient cooling effect, avoids secondary damage, has a simple structure, is easy to carry, has low energy consumption and low cost, and provides a good continuous cooling effect.
Smart Images

Figure CN224474507U_ABST
Abstract
Description
Technical Field
[0001] This utility model relates to the field of joint care technology, specifically to a circulating cold compress device for orthopedic joint care. Background Technology
[0002] Orthopedic joint care refers to the care of bone and joint diseases, aiming to promote patient recovery, reduce complications, and improve quality of life. Cold compresses are a commonly used method in orthopedic joint care, as they can reduce swelling, relieve pain, and decrease inflammation. Currently, circulating cold compress devices have emerged to achieve continuous cold compresses on the affected area.
[0003] Currently available circulating cold compress devices use a refrigeration system to circulate cooling water to apply cold compresses to the affected area, such as those disclosed in publication numbers CN214761742U and CN213788151U. However, these devices are complex in structure, large in size, and expensive, making them inconvenient to carry and use, and increasing hospital procurement costs. Alternatively, ice water can be used for cold compresses, such as the circulating cold compress device disclosed in publication number CN220655775U. However, the entire weight of this type of device presses on the patient's affected area, increasing discomfort and potentially causing secondary damage. Therefore, this invention provides a circulating cold compress device for orthopedic joint care. Utility Model Content
[0004] The purpose of this invention is to provide a circulating cold compress device for orthopedic joint care. It has a good cold compress effect, does not cause secondary damage to the affected area, and has a simple structure, small size, easy portability, low energy consumption, and low cost.
[0005] To achieve the above objectives, this utility model provides the following technical solution: a circulating cold compress device for orthopedic joint care, comprising an infusion component and a cold compress sleeve, wherein the cold compress sleeve is worn on the outside of the affected limb, and the coolant in the cold compress sleeve is circulated and cooled by the infusion component.
[0006] The infusion assembly includes, from top to bottom, a cooling cylinder, an intermediate cover, and a reservoir. The cold compress includes an outer layer and an inner layer that are fixed to each other, with a cold compress cavity formed between the outer and inner layers.
[0007] Preferably, the outer layer of the cold compress sleeve is fixed with an inlet pipe and an outlet pipe that communicate with the cold compress cavity, so as to facilitate the inlet and outlet of liquid in the cold compress cavity.
[0008] Preferably, an inner heat-conducting cylinder is fixed inside the cooling cylinder, which divides the interior of the cooling cylinder into a refrigeration chamber and a coolant chamber from the outside to the inside. Both the coolant chamber and the refrigeration chamber are equipped with temperature sensors for detecting the coolant.
[0009] Preferably, the top of the cooling cylinder is threaded with a top cover to seal the coolant chamber and the refrigeration chamber. The top cover has a handle for easy carrying of the device.
[0010] Preferably, the intermediate cover is disposed between the cooling cylinder and the liquid storage cylinder, and the intermediate cover is threadedly connected to both the cooling cylinder and the liquid storage cylinder; a pipe communicating with the coolant cavity is fixed at the bottom end of the cooling cylinder, and a sleeve is provided through the intermediate cover, with the pipe extending into the sleeve, so that the coolant cavity and the liquid storage cylinder are connected through the pipe.
[0011] Preferably, the liquid storage tank is equipped with a micro pump, and the outlet of the micro pump is connected to the inlet pipe through a delivery pipe; the inlet of the micro pump is connected to a short inlet pipe and an air inlet pipe, the short inlet pipe extends into the coolant in the liquid storage tank, and the air inlet pipe is located at the top of the coolant in the liquid storage tank, so that coolant and air are delivered to the cooling chamber at the same time.
[0012] Preferably, a connecting pipe is fixed to the outside of the cooling cylinder, one end of the connecting pipe extends into the coolant chamber, and the other end of the connecting pipe is connected to the water outlet pipe through a return pipe.
[0013] Preferably, valves are fixed on the drain pipe, delivery pipe and return pipe.
[0014] The technical effects and advantages provided by this utility model in the above technical solution are as follows:
[0015] 1. The cold compress is taken out and put on the patient's affected limb. The ice in the cooling chamber cools the coolant in the cooling chamber. Then, the micro pump delivers coolant and air into the cold compress at the same time. On the one hand, the coolant in the cold compress applies a cold compress to the affected area. On the other hand, the air causes the cold compress to expand, making the cold compress fit the affected area better. Compared with the existing technology, the present invention has a better cold compress effect, will not cause secondary damage to the affected area, and has a simple structure, small size, easy to carry, low energy consumption, and low cost.
[0016] 2. After the cooling compress is applied, the coolant that heats up will enter the coolant chamber to cool down before being stored in the reservoir. Since the high-temperature coolant in the cooling compress does not mix with the low-temperature coolant in the reservoir, it will not affect the temperature of the coolant in the reservoir, thus maintaining the temperature of the coolant continuously supplied to the cooling compress and maintaining the continuous cooling effect on the affected area. Attached Figure Description
[0017] Figure 1 This is an overall structural diagram of the present invention;
[0018] Figure 2 This is a cross-sectional view of the infusion assembly of this utility model;
[0019] Figure 3 for Figure 2 Exploded view;
[0020] Figure 4 This is a top view of the cooling cylinder of this utility model;
[0021] Figure 5 This is a cross-sectional view of the cold compress sleeve of this utility model.
[0022] Explanation of reference numerals in the attached figures:
[0023] 1 Infusion assembly, 11 Cooling cylinder, 12 Intermediate cover, 13 Liquid storage cylinder, 14 Inner heat conduction cylinder, 15 Cooling liquid chamber, 16 Refrigeration chamber, 17 Top cover, 18 Pipeline, 19 Sleeve, 110 Micro pump, 111 Water inlet short pipe, 112 Air inlet pipe, 113 Connecting pipe;
[0024] 2. Cold compress sleeve, 21. Outer layer of cold compress sleeve, 22. Inner layer of cold compress sleeve, 23. Cold compress cavity, 24. Inlet pipe, 25. Outlet pipe;
[0025] 3. Delivery pipe, 4. Return pipe, 5. Temperature sensor. Detailed Implementation
[0026] To enable those skilled in the art to better understand the technical solution of this utility model, the present utility model will be further described in detail below with reference to the accompanying drawings.
[0027] This utility model provides, for example Figure 1-5 The illustrated circulating cold compress device for orthopedic joint care includes an infusion assembly 1 and a cold compress sleeve 2. The cold compress sleeve 2 is worn on the outside of the affected limb, and the coolant in the cold compress sleeve 2 is circulated and cooled by the infusion assembly 1.
[0028] Specifically, the cold compress 2 includes an outer layer 21 and an inner layer 22 that are fixed to each other. A cold compress cavity 23 is formed between the outer layer 21 and the inner layer 22. An inlet pipe 24 and an outlet pipe 25 that communicate with the cold compress cavity 23 are fixed on the outer layer 21.
[0029] The cold compress 2 can be made into a ring and put directly on the affected limb, or the two ends of the cold compress 2 can be fixed with hook and loop fasteners respectively, and then the cold compress 2 can be wrapped around the affected limb and fixed with hook and loop fasteners.
[0030] After the cold compress 2 is put on the affected limb, the inner layer 22 of the cold compress comes into contact with the patient's skin. The inner layer 22 of the cold compress is made of thermally conductive rubber material, which allows the outer layer 21 of the cold compress to be stretched and thermally conductive, such as silicone rubber, which is a material with excellent thermal conductivity.
[0031] The outer layer 21 of the cooling compress is made of heat-insulating rubber, which allows the outer layer 21 of the cooling compress to be both stretchable and heat-insulating, for example:
[0032] Butyl rubber: a material with excellent heat insulation properties, which can effectively prevent heat transfer.
[0033] Ethylene propylene rubber: It has excellent heat insulation properties and corrosion resistance.
[0034] Next, as Figures 1-4 As shown, the infusion assembly 1 includes, from top to bottom, a cooling cylinder 11, an intermediate cover 12, and a storage cylinder 13. The intermediate cover 12 is threaded between the cooling cylinder 11 and the storage cylinder 13, and sealing rings need to be installed between the cooling cylinder 11 and the intermediate cover 12, and between the intermediate cover 12 and the storage cylinder 13.
[0035] The cooling cylinder 11 has an inner heat-conducting cylinder 14 fixed inside, which divides the interior of the cooling cylinder 11 into a cooling chamber 16 and a coolant chamber 15 from the outside in. The top of the cooling cylinder 11 is threadedly connected to a top cover 17 with a handle. The top cover 17 has a sealing gasket inside to seal the coolant chamber 15 and the cooling chamber 16. Opening the top cover 17 allows coolant to be added to the coolant chamber 15 and ice to be added to the cooling chamber 16. The ice and coolant exchange heat through the heat-conducting inner heat-conducting cylinder 14, cooling the coolant. Temperature sensors 5 for detecting the coolant are installed in both the coolant chamber 15 and the cooling chamber 23 (the temperature sensor 5 in the cooling chamber 23 is not shown in the figure). A controller is fixed outside the cooling cylinder 11, and the temperature sensors 5 are connected to the controller's input terminal. Alternatively, this device can be powered by a battery or a power cord.
[0036] like Figures 2-3 As shown, a manifold 18 communicating with the coolant chamber 15 is fixed at the bottom of the cooling cylinder 11. A sleeve 19 is provided through the intermediate cover 12, and the manifold 18 extends into the sleeve 19, so that the coolant chamber 15 and the storage cylinder 13 are connected through the manifold 18. A valve is fixed on the manifold 18. For easy control, a Q94F electric ball valve can be selected, which has a simple structure, good sealing performance, and is easy to operate. The valve is controlled by a controller. When the coolant reaches the required temperature, the valve on the manifold 18 opens, and the coolant in the coolant chamber 15 flows into the storage cylinder 13 through the manifold 18 for storage.
[0037] like Figures 2-3 As shown, a micro pump 110 is provided in the liquid storage tank 13. The outlet of the micro pump 110 is connected to the inlet pipe 24 through the delivery pipe 3. The inlet of the micro pump 110 is connected to the inlet short pipe 111 and the air inlet pipe 112. The inlet short pipe 111 extends into the coolant in the liquid storage tank 13, and the air inlet pipe 112 is located at the top of the coolant in the liquid storage tank 13, so that coolant and air are delivered to the cooling chamber 23 at the same time.
[0038] A connecting pipe 113 is fixed to the outside of the cooling cylinder 11. One end of the connecting pipe 113 extends into the coolant chamber 15, and the other end of the connecting pipe 113 is connected to the water outlet pipe 25 through the return pipe 4. Valves are fixed on both the delivery pipe 3 and the return pipe 4. The valves are also Q94F electric ball valves, which are controlled by the controller.
[0039] When in use, open the top cover 17 to add coolant to the coolant chamber 15 and add ice to the cooling chamber 16. Then close the top cover 17. After the ice cools the coolant to the required temperature, the controller controls the electric valve on the drain pipe 18 to open. The coolant in the coolant chamber 15 flows into the storage tank 13 through the drain pipe 18. At this time, the water inlet pipe 111 on the micro pump 110 extends into the coolant in the storage tank 13, and the air inlet pipe 112 is located at the top of the coolant in the storage tank 13.
[0040] Next, the device is brought into the ward. The infusion unit 1 is placed on the bedside table or other suitable location. The cold compress 2 is taken out and placed on the patient's affected limb, ensuring that the inner layer 22 of the cold compress is in contact with the affected area. The two ends of the delivery tube 3 are connected to the outlet and inlet pipe 24 of the micro pump 110, respectively. The two ends of the return tube 4 are connected to the connecting tube 113 and the outlet pipe 25, respectively. The micro pump 110 is started, and the inlet pipe 24 is opened (at this time, the outlet pipe 25 is closed). Coolant and air are delivered into the cold compress chamber 23 through the delivery tube 3 and the inlet pipe 24. On the one hand, the coolant enters the cold compress 2, and the temperature of the coolant is conducted to the affected area through the inner layer 22 of the cold compress for cold compress. On the other hand, the air enters the cold compress 2, causing the cold compress 2 to expand, thereby allowing the inner layer 22 of the cold compress to better fit the affected area and improve the cold compress effect. At the same time, the cold compress 2 is small in size and light in weight, and will not cause secondary damage to the affected area.
[0041] When the temperature sensor 5 in the cooling chamber 23 detects that the coolant temperature is higher than the required cooling temperature, the outlet pipe 25 is opened (at this time, the inlet pipe 24 is closed). Since air is injected into the cooling chamber 23, the air pressure in the cooling chamber 23 is greater than the air pressure in the coolant chamber 15. Therefore, the coolant in the cooling chamber 23 flows into the coolant chamber 15 through the outlet pipe 25 and the return pipe 4 to continue to be cooled (a micro water pump can also be installed in the coolant chamber 15 as needed to draw the coolant and air from the cooling chamber 23 into the coolant chamber 15). Then, the micro pump 110 delivers the coolant in the reservoir 13 back into the cooling sleeve 2 for cooling. The coolant in the coolant chamber 15 will flow into the reservoir 13 for storage after being cooled to the required temperature, thus realizing a circulating cooling process.
[0042] Since the high-temperature coolant in the cooling sleeve 2 does not mix with the low-temperature coolant in the reservoir 13, it does not affect the temperature of the coolant in the reservoir 13, thus maintaining the temperature of the coolant continuously supplied to the cooling sleeve 2 and maintaining the continuous cooling effect.
[0043] The foregoing description only illustrates certain exemplary embodiments of the present invention. Undoubtedly, those skilled in the art can modify the described embodiments in various ways without departing from the spirit and scope of the present invention. Therefore, the above drawings and descriptions are illustrative in nature and should not be construed as limiting the scope of protection of the claims of the present invention.
Claims
1. A circulating cold compress device for orthopedic joint care, characterized in that: It includes an infusion assembly (1) and a cold compress (2), wherein the cold compress (2) is worn on the outside of the affected limb and the coolant in the cold compress (2) is circulated and cooled by the infusion assembly (1); The infusion assembly (1) includes, from top to bottom, a cooling cylinder (11), an intermediate cover (12), and a storage cylinder (13); The cold compress (2) includes an outer layer (21) and an inner layer (22) that are fixed to each other, and a cold compress cavity (23) is formed between the outer layer (21) and the inner layer (22).
2. The circulating cold compress device for orthopedic joint care according to claim 1, characterized in that: The outer layer (21) of the cold compress sleeve is fixed with an inlet pipe (24) and an outlet pipe (25) that communicate with the cold compress cavity (23).
3. The circulating cold compress device for orthopedic joint care according to claim 2, characterized in that: The cooling cylinder (11) has an inner heat-conducting cylinder (14) fixed inside. The inner heat-conducting cylinder (14) divides the interior of the cooling cylinder (11) from the outside to the inside into a refrigeration chamber (16) and a coolant chamber (15). Both the coolant chamber (15) and the cooling chamber (23) are equipped with temperature sensors (5) for detecting the coolant.
4. A circulating cold compress device for orthopedic joint care according to claim 3, characterized in that: The top of the cooling cylinder (11) is threaded with a top cover (17) for sealing the coolant chamber (15) and the refrigeration chamber (16).
5. A circulating cold compress device for orthopedic joint care according to claim 3, characterized in that: The intermediate cover (12) is located between the cooling cylinder (11) and the liquid storage cylinder (13), and the intermediate cover (12) is threadedly connected to both the cooling cylinder (11) and the liquid storage cylinder (13). The bottom end of the cooling cylinder (11) is fixed with a pipe (18) that communicates with the coolant chamber (15). A sleeve (19) is provided through the middle cover (12). The pipe (18) extends into the sleeve (19), so that the coolant chamber (15) and the liquid storage cylinder (13) are connected through the pipe (18).
6. A circulating cold compress device for orthopedic joint care according to claim 5, characterized in that: The liquid storage cylinder (13) is equipped with a micro pump (110), and the outlet of the micro pump (110) is connected to the inlet pipe (24) through the delivery pipe (3); The micro pump (110) has a water inlet pipe (111) and an air inlet pipe (112) connected to its inlet. The water inlet pipe (111) extends into the coolant in the reservoir (13), and the air inlet pipe (112) is located at the top of the coolant in the reservoir (13), so that coolant and air are delivered to the cooling chamber (23) at the same time.
7. A circulating cold compress device for orthopedic joint care according to claim 6, characterized in that: A connecting pipe (113) is fixed to the outside of the cooling cylinder (11). One end of the connecting pipe (113) extends into the coolant chamber (15), and the other end of the connecting pipe (113) is connected to the water outlet pipe (25) through the return pipe (4).
8. A circulating cold compress device for orthopedic joint care according to claim 7, characterized in that: Valves are fixed on the drain pipe (18), delivery pipe (3) and return pipe (4).