Liquid return structure for a poultice capsule

By optimizing the liquid return path of the treatment capsule, the low-temperature liquid is directly returned to the water pump, which solves the problems of liquid temperature waste and temperature difference in the cooling module, achieving more efficient cooling and reduced power consumption.

CN224403860UActive Publication Date: 2026-06-26CHENGDU CRYO PUSH MEDICAL TECHNOLOGY CO LTD

Patent Information

Authority / Receiving Office
CN · China
Patent Type
Utility models(China)
Current Assignee / Owner
CHENGDU CRYO PUSH MEDICAL TECHNOLOGY CO LTD
Filing Date
2025-04-21
Publication Date
2026-06-26

AI Technical Summary

Technical Problem

The existing liquid reflux structure of the treatment capsule causes the low-temperature liquid inside the capsule to flow directly back into the water tank, wasting low-temperature heat and increasing the temperature difference and power consumption of the cooling module.

Method used

The liquid circulation path is optimized so that the cryogenic liquid flows back directly to the water pump without passing through the water tank when it returns to the capsule. The flow rate and pressure are adjusted by the control valve, and the working status of the refrigeration module is optimized in combination with the temperature detection probe.

Benefits of technology

This reduces the temperature difference between the liquid flowing into and out of the cooling module, shortens the cooling time, and reduces the overall power consumption of the unit.

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Abstract

The utility model discloses a kind of liquid backflow structures of fumigation and therapy capsules, comprising: water tank, water pump, refrigeration module, capsule and control valve;The water tank is connected with the water pump by first pipeline, the water pump is connected with the refrigeration module by second pipeline, the refrigeration module is connected with the capsule by third pipeline, the capsule is connected with the first pipeline by fourth pipeline, control valve is equipped on the fourth pipeline, and the control valve is used to adjust the flow and pressure of backflow liquid.This scheme is mainly to re-optimize the circulation path of liquid in pipeline layout, so that the low-temperature liquid no longer passes through the water tank on the capsule backflow path, but directly backflows to the water pump, so that the temperature difference between the inflow liquid and outflow liquid of the refrigeration module itself can be reduced, so that the same refrigeration temperature can be reached, the refrigeration time can be shortened and the effect of reducing power consumption.
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Description

Technical Field

[0001] This utility model relates to the field of therapeutic capsules, and in particular to a liquid reflux structure for a therapeutic capsule. Background Technology

[0002] In existing technologies, ice packs are commonly used for cold compresses to alleviate pain in injured muscles and joints and to accelerate patient recovery. The ice pack is connected to a corresponding main unit via tubing. The main unit contains a cooling module, water tank, water pump, and other components, which can circulate cold water into the ice pack to achieve cold compresses.

[0003] like Figure 1 The prior art illustrates a liquid reflux structure for a therapeutic bladder. This structure mainly comprises a water tank, a water pump, a cooling module, and the bladder itself, with the four components connected in series via pipes to form a loop. During operation, the water pump draws liquid from the water tank and sends it to the cooling module. The cooled liquid then flows to the bladder, which can then be used to apply a cold compress to the body. Afterward, the liquid flows back to the water tank, and the water pump again draws liquid from the tank and sends it back to the cooling module, thus continuously cycling through the bladder.

[0004] In this structure, the cooler liquid inside the capsule flows directly back to the water tank. Since the water tank typically contains a larger volume of liquid, and this liquid is not cooled by the cooling module, its temperature is higher than that of the liquid inside the capsule. Therefore, directly returning the cooler liquid from the capsule to the water tank wastes its heat. Furthermore, the water pump continuously draws the warmer liquid from the tank and sends it to the cooling module for cooling. The significant temperature difference between the liquid before and after flowing into the cooling module reduces its cooling efficiency and increases the overall power consumption of the unit. Utility Model Content

[0005] The present invention aims to at least solve one of the technical problems existing in the prior art. Therefore, one objective of the present invention is to provide a liquid reflux structure for a therapeutic dressing.

[0006] The technical solution of this utility model is as follows: a liquid reflux structure for a therapeutic bladder, characterized in that it includes: a water tank, a water pump, a refrigeration module, a bladder, and a control valve;

[0007] The water tank is connected to the water pump via a first pipe, the water pump is connected to the refrigeration module via a second pipe, the refrigeration module is connected to the bladder via a third pipe, and the bladder is connected to the first pipe via a fourth pipe. A control valve is provided on the fourth pipe, and the control valve is used to adjust the flow rate and pressure of the return liquid.

[0008] Furthermore, the refrigeration module is equipped with a first temperature detection probe and a second temperature detection probe, and the fourth pipeline is equipped with a third temperature detection probe.

[0009] Furthermore, the control valve is a variable diameter joint valve.

[0010] Furthermore, the third and fourth conduits are connected to the male connector on the plug head, and the capsule is connected to the female connector on the plug head. The male and female connectors are detachably plugged in.

[0011] Compared with the prior art, the beneficial effects of this utility model are as follows:

[0012] This solution mainly involves optimizing the liquid circulation path in the pipeline layout, so that the low-temperature liquid no longer passes through the water tank on the return path of the capsule, but flows directly back to the water pump. This reduces the temperature difference between the liquid flowing into and out of the refrigeration module, thereby shortening the cooling time and reducing power consumption when cooling the same temperature.

[0013] Additional aspects and advantages of this invention will be set forth in part in the description which follows, and in part will be obvious from the description, or may be learned by practice of the invention. Attached Figure Description

[0014] To more clearly illustrate the technical solutions in the embodiments of this utility model or the prior art, the drawings used in the description of the embodiments or the prior art will be briefly introduced below. Obviously, the drawings described below are only some embodiments of this utility model. 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 liquid reflux structure of a therapeutic capsule in the prior art;

[0016] Figure 2 This is a schematic diagram of the liquid reflux structure of the therapeutic capsule of this utility model.

[0017] Figure label:

[0018] 1. Water tank; 2. Water pump; 3. Refrigeration module; 4. Container; 5. Control valve; 6. Male connector; 7. Female connector; 8. First pipeline; 9. Second pipeline; 10. Third pipeline; 11. Fourth pipeline; 12. First temperature detection probe; 13. Second temperature detection probe; 14. Third temperature detection probe. Detailed Implementation

[0019] To make the objectives, technical solutions, and advantages of the embodiments of this utility model clearer, the technical solutions of the embodiments of this utility model will be clearly and completely described below with reference to the accompanying drawings. Obviously, the described embodiments are only some embodiments of this utility model, not all embodiments. Based on the embodiments of this utility model, all other embodiments obtained by those skilled in the art without creative effort are within the protection scope of this utility model.

[0020] The embodiments of this utility model are described in detail below. Examples of the embodiments are shown in the accompanying drawings, wherein the same or similar reference numerals denote the same or similar elements or elements having the same or similar functions throughout. In the description of this utility model, it should be understood that the terms "upper," "lower," "front," "rear," "left," "right," "inner," "outer," "vertical," "circumferential," etc., indicating the orientation or positional relationship are based on the orientation or positional relationship shown in the accompanying drawings, and are only for the convenience of describing this utility model 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, and therefore should not be construed as a limitation of this utility model.

[0021] In this utility model, unless otherwise explicitly specified and limited, the terms "installation," "connection," "linking," and "fixing," etc., should be interpreted broadly. For example, they can refer to a fixed connection, a detachable connection, or an integral connection; 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; and they can refer to the internal connection of two components. Those skilled in the art can understand the specific meaning of the above terms in this utility model according to the specific circumstances.

[0022] In the description of this utility model, "first feature" and "second feature" may include one or more of the indicated features. Furthermore, the terms "first" and "second" are used for descriptive purposes only and should not be construed as indicating or implying relative importance or implicitly specifying the number of indicated technical features. Thus, a feature defined as "first" or "second" may explicitly or implicitly include one or more of the indicated features.

[0023] like Figure 1 The prior art illustrates a liquid reflux structure for a therapeutic bladder 4. This structure mainly comprises a water tank 1, a water pump 2, a cooling module 3, and the bladder 4, with the four components connected in series via pipes to form a loop. During operation, the water pump 2 draws liquid from the water tank 1 and sends it to the cooling module 3. After cooling, the liquid flows to the bladder 4, which then applies a cold compress to the body. The liquid then flows back to the water tank 1, and the water pump 2 draws liquid from the water tank 1 again and sends it to the cooling module 3, thus continuously cycling through the bladder.

[0024] In this structure, the cooler liquid inside the capsule 4 flows directly back to the water tank 1. Since the water tank 1 typically contains a larger volume of liquid, and this liquid is not cooled by the cooling module 3, its temperature is higher than that of the liquid inside the capsule 4. Therefore, the direct return of the cooler liquid from the capsule 4 to the water tank 1 wastes this portion of its low-temperature heat. Furthermore, the water pump 2 continuously draws the warmer liquid from the water tank 1 and sends it to the cooling module 3 for cooling. The significant temperature difference between the liquid before and after flowing into the cooling module 3 reduces its cooling efficiency and increases the overall power consumption.

[0025] In view of this, the inventor designed a method such as Figure 2 The liquid reflux structure of the therapeutic capsule 4 shown includes: a water tank 1, a water pump 2, a cooling module 3, a capsule 4, and a control valve 5.

[0026] Water tank 1 is connected to water pump 2 through first pipe 8. Water pump 2 is connected to refrigeration module 3 through second pipe 9. Refrigeration module 3 is connected to bladder 4 through third pipe 10. Bladder 4 is connected to first pipe 8 through fourth pipe 11. Control valve 5 is provided on fourth pipe 11. Control valve 5 is used to adjust the flow rate and pressure of liquid in the circuit.

[0027] Compared with existing technologies, this solution mainly optimizes the liquid circulation path in the pipeline layout, such as... Figure 2 As shown, during initial use, when the various pipes and the bladder 4 are not full of liquid, the water pump 2 still draws liquid from the water tank 1 and sends it to the cooling module 3. After cooling, the liquid flows to the bladder 4, which can then be used for cold compresses on the human body. However, during the return flow, the low-temperature liquid no longer passes through the water tank 1 on the return path of the bladder 4, but flows directly back to the water pump 2. This reduces the temperature difference between the liquid flowing into and out of the cooling module 3, thereby shortening the cooling time and reducing power consumption while cooling to the same temperature.

[0028] In this design, the fourth pipe 11 is the return pipe for the cryogenic liquid inside the capsule 4. The control valve 5 installed in the fourth pipe 11 is used to adjust the flow rate and pressure of the return liquid. When the water pressure of the liquid in the fourth pipe 11 is greater than the pressure of the water tank 1, most of the liquid drawn by the water pump 2 comes from the return liquid in the fourth pipe 11. The temperature of this part of the return liquid is lower than the temperature of the liquid in the water tank 1. Therefore, the temperature of the liquid that ultimately participates in the refrigeration cycle will be lower, the refrigeration efficiency will be higher, and the power consumption of this device will be lower.

[0029] In a further configuration, the cooling module 3 is equipped with a first temperature detection probe 12 and a second temperature detection probe 13, and the fourth pipe 11 is equipped with a third temperature detection probe 14. The first temperature detection probe 12 can be used to detect the temperature of the heat sink of the cooling module 3, the second temperature detection probe 13 is used to detect the output temperature of the refrigerant, and the third temperature detection probe 14 is used to detect the return temperature of the refrigerant after passing through the bladder 4. This facilitates the provision of more accurate temperature feedback data, making it easier for the cooling module 3 to adjust its working state in the future.

[0030] In a further configuration, control valve 5 is a reducing valve, which allows adjustment of the opening size of the fluid passage, thereby regulating the liquid pressure and flow rate. Of course, control valve 5 can also be of other types, such as a flow valve, etc., and this is not a limitation here.

[0031] To facilitate the assembly and disassembly of capsule 4, such as Figure 2 As shown, the third pipe 10 and the fourth pipe 11 are connected to the male connector 6 on the plug head, and the bladder 4 is connected to the female connector 7 on the plug head. The male connector 6 and the female connector 7 are detachably plugged in. This plug head is a quick-release head product, which can be selected and purchased by those skilled in the art according to their needs, and will not be described in detail here.

[0032] In summary, this solution mainly optimizes the liquid circulation path in the pipeline layout, so that the low-temperature liquid no longer passes through the water tank 1 in the return path of the capsule 4, but flows directly back to the water pump 2. This reduces the temperature difference between the liquid flowing into and out of the refrigeration module 3, thereby shortening the cooling time and reducing power consumption when cooling the same temperature.

[0033] Although some embodiments of the present invention have been shown and described, those skilled in the art will understand that various changes, modifications, substitutions and alterations to these embodiments without departing from the principles and spirit of the present invention are all within the scope of protection of the claims of the present invention.

Claims

1. A liquid reflux structure for a therapeutic capsule, characterized in that, include: Water tank, water pump, refrigeration module, bladder, and control valve; The water tank is connected to the water pump via a first pipe, the water pump is connected to the refrigeration module via a second pipe, the refrigeration module is connected to the bladder via a third pipe, and the bladder is connected to the first pipe via a fourth pipe. A control valve is provided on the fourth pipe, and the control valve is used to adjust the flow rate and pressure of the return liquid.

2. The liquid reflux structure of the therapeutic capsule according to claim 1, characterized in that, The refrigeration module is equipped with a first temperature detection probe and a second temperature detection probe, and the fourth pipeline is equipped with a third temperature detection probe.

3. The liquid reflux structure of the therapeutic capsule according to claim 1, characterized in that, The control valve is a variable diameter joint valve.

4. The liquid reflux structure of the therapeutic capsule according to claim 1, characterized in that, The third and fourth conduits are connected to the male connector on the plug head, and the capsule is connected to the female connector on the plug head. The male and female connectors are detachably plugged in.