Circulating cold compress device

By designing a circulating cold compress device, a pressure pump is used to drive the flow of cooling liquid and press it onto the limbs, solving the problem of limb stiffness caused by cold compress devices, achieving stable cooling and promoting blood circulation, and improving wound healing.

CN224112869UActive Publication Date: 2026-04-14HANDAN TRADITIONAL CHINESE MEDICINE HOSPITAL
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Patent Information

Authority / Receiving Office
CN · China
Patent Type
Utility models(China)
Current Assignee / Owner
Filing Date
2025-01-09
Publication Date
2026-04-14

AI Technical Summary

Technical Problem

Prolonged use of existing cold compress devices can lead to limb stiffness, obstructed blood circulation, and impaired wound healing.

Method used

Design a circulating cold compress device that uses a pressure pump to drive the coolant to flow in the cold compress hose. By adjusting the state of the pressure pump, pressure can be applied to the limb and repeated pressure can be applied to promote blood circulation. Combined with the cooling components, a stable cooling effect is maintained.

Benefits of technology

It ensures smooth blood circulation in the limbs during prolonged cold compresses, reduces stiffness, promotes wound healing, and provides a stable cooling effect.

✦ Generated by Eureka AI based on patent content.

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Abstract

The utility model relates to the technical field of limb nursing, in particular to a circulating cold compress device which comprises a binding belt, a cold compress hose and a pressure pump. Wherein the binding belt is bound on a to-be-cold-compressed part and is fixed relative to the to-be-cold-compressed part; the cold compress hose is filled with refrigerating fluid, and the cold compress hose comprises a first part which is located in the binding belt and used for making contact with a part to be subjected to cold compress; the pressurizing pump is used for driving liquid in the cold compress hose to flow, the pressurizing pump pressurizes the fluid in the first part to enable the fluid to generate at least two pressures, the at least two pressures comprise the first pressure and the second pressure, and the first pressure is larger than the second pressure. The limb is pressed through the cold compress hose, and the effects of promoting blood circulation and facilitating wound healing are achieved.
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Description

Technical Field

[0001] This application relates to the field of limb care technology, and in particular to a circulating cold compress device. Background Technology

[0002] Orthopedic nursing now encompasses several key aspects, including daily care for patients with orthopedic diseases, professional care for fracture sites, and, most importantly, close monitoring of the patient's condition. When a patient suffers a fracture, nursing staff need to closely monitor local swelling, the color and temperature of the skin on the extremities, and the patient's level of pain. Cold compresses are a common method used in nursing procedures to manage swelling in the limbs, achieving physical cooling through the use of cold compress devices.

[0003] Cold compresses can cause local vasoconstriction, slowing blood flow and reducing vascular permeability, thereby reducing the amount of blood and tissue fluid leakage, alleviating swelling at the injury site, and creating favorable conditions for subsequent recovery. On the one hand, cold compresses can reduce the sensitivity of nerve endings, weakening the body's perception of pain; on the other hand, they reduce the accumulation of pain-inducing substances such as histamine and bradykinin in the local area, reducing stimulation of nerve endings at the source, thus alleviating the patient's pain and improving comfort.

[0004] Currently, applying cold compresses to patients' limbs has revealed several challenging issues. Prolonged cold compresses can cause the wound area to become extremely stiff, severely hindering blood circulation and prolonging normal wound healing. Utility Model Content

[0005] This application provides a circulating cold compress device that can apply pressure to the limbs, promote blood circulation, and help wound healing.

[0006] This application provides a circulating cold compress device, including a strap, a cold compress hose, and a pressure pump; wherein, the strap is strapped to the area to be cold-compressed and fixed thereto; the cold compress hose is filled with a cooling liquid and includes a first portion located within the strap for contacting the area to be cold-compressed; the pressure pump is used to drive the flow of liquid within the cold compress hose, and the pressure pump pressurizes the fluid in the first portion to generate at least two pressures in the fluid, the at least two pressures including a first pressure and a second pressure, wherein the first pressure is greater than the second pressure.

[0007] In the above technical solution, a pressurizing pump drives the refrigerant to flow in the cold compress hose. After the refrigerant flows through the first part, it cools the part to be cooled, thus achieving cold compress on the limb.

[0008] Adjust the pressure of the pressurizing pump to change the pressure of the refrigerant, causing the cooling hose to deform. Since the first part is located between the strap and the limb, it can apply pressure to the limb. Continue to adjust the pressure of the pressurizing pump to apply multiple pressures to the limb, promoting blood circulation and reducing stiffness.

[0009] Optionally, the binding strap is provided with a fastener that limits the first part to the binding strap.

[0010] Optionally, the fastener includes at least two flexible rings secured to the strap, the flexible rings being able to accommodate the passage of the cooling tubing.

[0011] Optionally, it includes multiple rows of flexible rings, wherein two rows of flexible rings are a first row and a second row, the first row and the second row are spaced apart along the width direction after the binding strap is tied, and each row includes at least two flexible rings spaced apart along the circumferential direction after the binding strap is tied.

[0012] Optionally, a third row is also included, which is spaced apart from the first and second rows along the width direction after the binding straps are tied.

[0013] Optionally, the cooling hose is a fitting whose cross-section of the first part can deform.

[0014] Optionally, one end of the binding strap is fixed with a male buckle and the other end is fixed with a female buckle. After the binding strap is wrapped around the area to be treated with cold compress, it is fixed by the male buckle and the female buckle.

[0015] Optionally, a booster pump pressurizes the fluid within the first section, causing the fluid pressure to change periodically.

[0016] Optionally, the cold compress hose includes an inner tube and a metal hose, with the metal hose fitted over the portion of the inner tube excluding the area of ​​the first part.

[0017] Optionally, a cooling component is also included to cool the liquid inside the cooling hose.

[0018] In the above technical solution, by selecting different rows of flexible rings to connect the cold compress tubing according to the length of the part to be cold-compressed along the width direction after the binding strap is tied, the length of the first part along the width direction after the binding strap is tied can be adjusted, thereby adjusting the cold compress area along the width direction after the binding strap is tied.

[0019] By connecting different numbers of flexible rings in each row to the cold compress tubing, the length of the first part along the circumferential direction after being tied with the straps can be adjusted, thereby adjusting the cold compress area along the circumferential direction after being tied with the straps. Attached Figure Description

[0020] Figure 1This is a schematic diagram of the cold compress device when the binding strap is in the unfolded state in one embodiment.

[0021] Figure 2 This is a schematic diagram of the cold compress device when the binding strap is in the unfolded state in one embodiment.

[0022] Figure 3 This is a schematic diagram showing the structure in which the fluid pressure inside the cold compress hose is at a first pressure when the binding strap is connected by a snap fastener in one embodiment.

[0023] Figure 4 This is a schematic diagram of a structure in one embodiment where the fluid pressure inside the cold compress hose is at a second pressure when the binding strap is connected by a snap fastener.

[0024] 1. Binding strap; 11. Female buckle; 12. Female buckle; 2. Cooling hose; 21. First part; 3. Pressure pump; 4. Cooling assembly; 5. Flexible ring; 6. First row; 7. Second row; 8. Third row. Detailed Implementation

[0025] The present application will now be described in further detail with reference to the accompanying drawings and embodiments. Through these descriptions, the features and advantages of the present application will become clearer and more apparent.

[0026] The term “exemplary” as used herein means “serving as an example, embodiment, or illustration.” Any embodiment illustrated herein as “exemplary” is not necessarily to be construed as superior to or better than other embodiments. Although various aspects of embodiments are shown in the accompanying drawings, the drawings are not necessarily drawn to scale unless specifically indicated otherwise.

[0027] Furthermore, the technical features involved in the different embodiments of this application described below can be combined with each other as long as they do not conflict with each other.

[0028] This application discloses a circulating cooling device. The cooled refrigerant flows along a pipe. A part of the pipe is fixed to the limb and corresponds to the part to be cooled. When the refrigerant flows through this part, it absorbs the heat of the part to be cooled, thus cooling the part. The temperature of the refrigerant rises, and the refrigerant flows through the cooling component to cool down. The refrigerant circulates and continuously cools the part to be cooled.

[0029] Compared to using ice packs alone for cooling, where the cooling effect gradually changes, this device's refrigerant provides a continuous and relatively constant temperature to the area being cooled, resulting in stable cooling for an extended period. However, because the cooling device is in contact with the area for a longer time, the surrounding muscle tissue can easily become stiff, and blood circulation may be impaired, potentially hindering the recovery of the injured area.

[0030] Reference Figure 1This application discloses a circulating cold compress device, including a strap 1, a cold compress hose 2, and a pressure pump 3. The strap 1 is strapped to the area to be cold-compressed and fixed thereto; the cold compress hose 2 is filled with a cooling liquid and includes a first part 21 located inside the strap 1 for contacting the area to be cold-compressed.

[0031] The pressure pump 3 is used to drive the flow of liquid in the cold compress hose 2, and the pressure pump 3 pressurizes the fluid in the first part 21 to generate at least two pressures in the fluid, including a first pressure and a second pressure, wherein the first pressure is greater than the second pressure.

[0032] Specifically, the binding strap 1 is a component used to connect to the limb. The length of the binding strap 1 is determined according to design requirements. The binding strap 1 is a long, strip-shaped sterile flexible fiber band. The binding strap 1 can be fixed to the limb by tying both ends, or it can be fixed to the limb by other methods. In this embodiment, the binding strap 1 is fixed to the limb by Velcro, and the specific method will be explained later. The binding strap 1 can completely cover the area to be treated with cold compresses.

[0033] For ease of explanation, a first direction and a second direction are defined. The first direction is the width direction of the binding strap 1, which is also the width direction of the binding strap 1 after binding. The second direction is the length direction of the binding strap 1, which is also the circumferential direction of the binding strap 1 after binding, or the length direction of the binding strap 1 after unfolding. In the attached drawings, the first direction is represented by the X direction, and the second direction is represented by the Y direction.

[0034] When using, wrap the binding strap 1 around the limb in the second direction, cover the area to be cooled, and fix the two ends of the binding strap 1 in the second direction. The binding strap 1 needs to maintain appropriate pressure on the limb to fix the binding strap 1 to the limb.

[0035] Optionally, the cold compress device further includes a cooling component 4, which cools the liquid inside the cold compress hose 2. In this embodiment, a pressure pump 3 drives the liquid inside the cold compress hose 2 to circulate. In another embodiment, the pressure pump 3 draws out a set temperature of refrigerant and drives the liquid to flow through the first section 21 inside the cold compress hose 2, and then continues to flow out of the cold compress hose 2.

[0036] The cooling hose 2 is filled with cooling fluid and includes a first part 21 located within the strap 1 for contacting the area to be cooled.

[0037] The cooling hose 2 is filled with a refrigerant that can be water, saline solution, or other types of liquid. In this embodiment, the cooling hose 2 is the part that connects the outlet of the pressure pump 3 and the inlet of the cooling component 4. The inlet of the pressure pump 3 and the outlet of the cooling component 4 can be connected by other hoses or rigid pipes.

[0038] It should be noted that in this embodiment, the refrigeration component 4 and the pressurization pump 3 are arranged sequentially along the flow direction of the refrigerant, and the refrigerant flows through the limb and then passes through the refrigeration component 4 and the pressurization pump 3 in sequence.

[0039] In another embodiment, the pressurizing pump 3 and the refrigeration component 4 are arranged sequentially along the flow direction of the refrigerant, and the refrigerant flows through the limb and then passes through the pressurizing pump 3 and the refrigeration component 4 in sequence.

[0040] The first part 21 is the portion of the cold compress tube 2 that connects to the binding strap 1 and is used to contact the area to be treated with cold compresses. The length of the first part 21 can be either a fixed length or a variable length, depending on the usage requirements. The specific variation will be explained later. The first part 21 is illustrated in the attached drawing using a dashed box.

[0041] On the one hand, the first part 21 can be placed between the binding strap 1 and the limb, and the first part 21 can be fixed relative to the limb when the binding strap 1 is pressed together with the limb; on the other hand, it can be connected to the binding strap 1. The first part 21 connected to the binding strap 1 has a stable position on the binding strap 1, which is beneficial to determining the position of the first part 21 relative to the limb when the binding strap 1 is connected to the limb.

[0042] As an alternative, the cooling hose 2 is a tube whose cross-section of the first part 21 can deform. In another embodiment, the cooling hose 2 is a tube whose cross-section can deform at all points throughout.

[0043] As an optional solution, the cooling hose 2 includes an inner tube and a metal hose. The metal hose is fitted inside the inner tube, excluding the area of ​​the first part 21. The two ends of the inner tube are respectively connected to the outlet of the pressure pump 3 and the inlet of the cooling component 4. The metal hose is not shown in the attached drawings.

[0044] Metal hoses can reduce wear and scratches on the inner pipe during daily use. On the other hand, when the refrigerant pressure inside the inner pipe increases, the metal hose can protect the inner pipe and reduce the risk of damage due to excessive pressure.

[0045] The pressure pump 3 is used to drive the flow of liquid within the cold compress hose 2. The pressure pump 3 pressurizes the fluid within the first section 21 to generate at least two pressures, including a first pressure and a second pressure, wherein the first pressure is greater than the second pressure.

[0046] The pressure pump 3 is a component that can apply variable pressure to the fluid. After the pressure pump 3 draws the refrigerant cooled by the cooling component 4, it drives the refrigerant to flow in the cold compress hose 2. After the refrigerant flows through the first part 21, it cools the part to be cooled, thus achieving cold compress on the limb.

[0047] The pressure pump 3 pressurizes the fluid in the first part 21. At this time, the pressure of the fluid represents the pressure of the fluid on the cooling hose 2.

[0048] The pressure applied to the refrigerant by the booster pump 3 is variable. Figure 3 The diagram illustrates the state when the booster pump 3 applies the first pressure to the refrigerant. Figure 4 The diagram illustrates the state when the pressure pump 3 applies a second pressure to the refrigerant. The refrigerant flow rate is faster in the first pressure state than in the second pressure state. In the first pressure state, the cross-section of the cooling hose 2 is circular. In the second pressure state, the cross-section of the cooling hose 2 is approximately elliptical.

[0049] When the cold compress tube 2 is placed between the binding strap 1 and the limb, the cross-sectional shape of the cold compress tube 2 is approximately... Figure 4 The cross-section of the cold compress hose 2. The binding strap 1 secures the cold compress hose 2 to the limb. When the pressure pump 3 starts, it applies pressure to the refrigerant, raising the refrigerant pressure to the second pressure. Adjusting the pressure pump 3 raises the refrigerant pressure to the first pressure. At this point, the cold compress hose 2 deforms... Figure 3 The cooling hose 2 is positioned between the binding strap 1 and the limb, allowing for pressure application to the limb. The pressure pump 3 is then adjusted to a second pressure level, enabling repeated pressure application from the cooling hose 2 to the limb, promoting blood circulation and reducing stiffness.

[0050] The cooling component 4 cools the liquid inside the cooling hose 2. The cooling component 4 is a component capable of cooling liquids. The cooling component 4 may include a container for storing refrigerant. The coolant passing through the limb enters the container, and the pressure pump 3 draws the refrigerant from the container and sends it into the cooling hose 2.

[0051] Reference Figure 1 As an alternative, the binding strap 1 is provided with a fastener that limits the first part 21 to the binding strap 1.

[0052] Specifically, the fastener is fixedly connected to the binding strap 1, and the first part 21 is connected to the fastener, which secures the first part 21 to the binding strap 1. The fastener can be sewing thread, used to sew the first part 21 to the binding strap 1. Alternatively, the fastener can be adhesive, which bonds the cold compress tube 2 to the binding strap 1. The fastener can also have other structural forms; in this embodiment, a structure using a flexible ring 5 for connection is selected.

[0053] Reference Figure 1 As an alternative, the fastener includes at least two flexible rings 5 ​​fixed to the binding strap 1, the flexible rings 5 ​​being able to accommodate the passage of the cold compress tubing 2.

[0054] Specifically, the fastener includes at least two flexible rings 5 ​​disposed on the binding strap 1. In one embodiment, the two flexible rings 5 ​​are spaced apart along a first direction, and the cold compress tube 2 passes through the two flexible rings 5. The first portion 21 includes the area between the two flexible rings 5 ​​and the portion located near the two flexible rings 5. In one embodiment, the two flexible rings 5 ​​are spaced apart along a second direction.

[0055] In this embodiment, the fastener includes four flexible rings 5, through which the cold compress tube 2 passes, and the four flexible rings 5 ​​confine the cold compress tube 2 to the binding strap 1. The distribution of the four flexible rings 5 ​​will be described in detail later.

[0056] At least two flexible rings 5 ​​secure the cold compress tube 2 to the binding strap 1, improving the stability of the cold compress tube 2 secured to the binding strap 1.

[0057] Reference Figure 1 As an optional solution, the circulating cold compress device includes multiple rows of flexible rings, wherein the two rows of flexible rings are the first row 6 and the second row 7, the first row 6 and the second row 7 are spaced apart along the width direction after being tied with the binding strap 1, and each row includes at least two flexible rings 5 ​​spaced apart along the circumferential direction after being tied with the binding strap 1.

[0058] Specifically, the four flexible rings 5 ​​are divided into two rows, with each row including two flexible rings 5. The first row 6 and the second row 7 are spaced apart along a first direction, and the two flexible rings 5 ​​in each row are spaced apart along a second direction. In this embodiment, the two flexible rings 5 ​​in the two rows are arranged opposite each other along the first direction. Each row of flexible rings is illustrated in the accompanying drawings using a dotted line frame.

[0059] In another embodiment, two flexible rings 5 ​​in the two rows of flexible rings 5 ​​are staggered one-to-one along a first direction, and the spacing of the staggered arrangement along a second direction is [missing information].

[0060] The cold compress tube 2 passes through the flexible ring 5 of the first row 6 in sequence, moves along the first direction through the flexible ring 5 of the second row 7, moves along the second direction through another flexible ring 5 of the second row 7, and moves along the first direction through another flexible ring 5 of the first row 6. The first part 21 is arranged in a U-shape on the binding strap 1.

[0061] Reference Figure 2 As an optional solution, it also includes a third row 8, with the third row 8, the first row 6 and the second row 7 spaced apart along the width direction after the binding strap 1 is tied.

[0062] Specifically, the attached diagram shows nine flexible rings 5, which are arranged in three rows. The first row 6, the second row 7, and the third row 8 are spaced apart along the first direction. The first part 21 is arranged in a serpentine pattern on the binding strap 1.

[0063] Depending on the length of the area to be cooled along the first direction, either the first row 6 and the second row 7 can be used to connect the cooling tubing 2, or the first row 6 and the third row 8 can be used to connect the cooling tubing 2. By selecting different rows to connect the cooling tubing 2, the length of the first part 21 along the first direction can be adjusted, thereby adjusting the cooling area in the first direction.

[0064] In this embodiment, each row is provided with three flexible rings 5, and the cold compress tube 2 is connected to each of the three flexible rings 5 ​​in each row. In another embodiment, two adjacent flexible rings 5 ​​in each row can be selected according to the length of the area to be cold-compressed along the second direction.

[0065] By connecting the cooling tubing 2 with a different number of flexible rings 5 ​​in each row, the length of the first part 21 along the second direction can be adjusted, thereby adjusting the cooling area in the second direction. See also Figure 1 and Figure 2 These represent cold regions with different lengths along both the first and second directions.

[0066] Reference Figure 3 As an alternative, one end of the binding strap 1 is fixed with a male buckle 11 and the other end is fixed with a female buckle 12. After the binding strap 1 is wrapped around the area to be treated with cold compress, it is fixed by the male buckle and the female buckle 12.

[0067] Specifically, one end of the binding strap 1 along the second direction is fixed with a male buckle 11, and the other end is fixed with a female buckle 12.

[0068] In another embodiment, a female buckle 12 is fixed to the outer side of one end of the binding strap 1 along the first direction, and a female buckle 12 is fixed to the inner side of the other end.

[0069] After the binding strap 1 is wrapped around the limb, press one end of the binding strap 1 behind the limb, tighten the other end, and connect the male buckle 11 and the female buckle 12 to connect the binding strap 1 to the limb. The Velcro connection method is used to facilitate the connection or removal of the binding strap 1 from the limb.

[0070] Reference Figure 1 As an alternative, the pressure pump 3 pressurizes the fluid in the first part 21, causing the fluid pressure to change periodically.

[0071] Specifically, the periodic pressure changes of the fluid within the first part 21 enable smooth pressure application to the limb, which helps to soothe muscles and improve blood flow near the injured area.

[0072] In the description of this application, it should be noted that the terms "upper", "lower", "inner", "outer", "front", "rear", "left", "right", etc., indicate the orientation or positional relationship based on the orientation or positional relationship in the working state of this application. They are only for the convenience of describing this application 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 application.

[0073] In the description of this application, it should be noted that, unless otherwise expressly specified and limited, the terms "installation," "connection," and "linking" should be interpreted broadly. Those skilled in the art can understand the specific meaning of these terms in this application based on the specific circumstances.

[0074] The present application has been described above with reference to preferred embodiments; however, these embodiments are merely exemplary and illustrative. Various substitutions and modifications can be made to the present application based on these embodiments, all of which fall within the protection scope of the present application.

Claims

1. A circulating cold compress device, characterized in that, Includes a strap (1), a cooling tubing (2), and a pressure pump (3); among which, The binding strap (1) is bound to the area to be treated with cold compress and is fixed accordingly; The cold compress hose (2) is filled with refrigerant and includes a first part (21) located inside the strap (1) for contacting the area to be cold-compressed. The pressurizing pump (3) is used to drive the flow of liquid in the cold compress hose (2), and the pressurizing pump (3) pressurizes the fluid in the first part (21) to generate at least two pressures, including a first pressure and a second pressure, wherein the first pressure is greater than the second pressure.

2. The circulating cold compress device according to claim 1, characterized in that, The binding strap (1) is provided with a fastener, which limits the first part (21) on the binding strap (1).

3. The circulating cold compress device according to claim 2, characterized in that, The fastener includes at least two flexible rings (5) fixed to the binding strap (1), the flexible rings (5) being able to accommodate the cold compress tube (2) through which it passes.

4. The circulating cold compress device according to claim 3, characterized in that, It includes multiple rows of flexible rings, two of which are a first row (6) and a second row (7). The first row (6) and the second row (7) are spaced apart along the width direction after being tied with the binding strap (1). Each row of flexible rings includes at least two flexible rings (5) spaced apart along the circumferential direction after being tied with the binding strap (1).

5. The circulating cold compress device according to claim 4, characterized in that, It also includes a third row (8), which, the first row (6) and the second row (7) are spaced apart along the width direction after being tied with the binding strap (1).

6. The circulating cold compress device according to claim 1, characterized in that, The cold compress hose (2) is a pipe fitting whose cross-section can be deformed from the first part (21).

7. The circulating cold compress device according to claim 1, characterized in that, The binding strap (1) has a male buckle (11) fixed at one end and a female buckle (12) fixed at the other end. The binding strap (1) is wrapped around the part to be treated with cold compress and then fixed by the male buckle (11) and the female buckle (12).

8. The circulating cold compress device according to claim 1, characterized in that, The pressurizing pump (3) pressurizes the fluid in the first part (21), causing the fluid pressure to change periodically.

9. The circulating cold compress device according to claim 1, characterized in that, The cold compress hose (2) includes an inner tube and a metal hose, the metal hose being sleeved in the portion of the inner tube excluding the area of ​​the first part (21).

10. The circulating cold compress device according to claim 1, characterized in that, It also includes a cooling component (4) that cools the liquid inside the cooling hose (2).