Temperature-adjustable blood storage bag

Abstract

The utility model discloses a temperature-adjustable blood storage bag which comprises a blood storage device which comprises a blood storage bag, a blood inlet tube and a blood transfusion tube, and the blood inlet tube and the blood transfusion tube are communicated with the blood storage bag; the temperature control device comprises a water storage bag, a water inlet pipe and a water outlet pipe, and the water inlet pipe and the water outlet pipe are respectively communicated with the water storage bag; and the heat exchange interface is located between the blood storage bag and the water storage bag, so that the blood storage bag and the water storage bag can conduct heat transfer and exchange through the interface, and the blood temperature control device has the effect of being capable of controlling the temperature of blood in the blood storage bag.

Description

Technical Field

[0001] The present application relates to the technical field of medical devices, and in particular to a temperature-adjustable blood storage bag. Background Art

[0002] During outdoor activities or emergency rescue situations, when emergency injuries such as heavy bleeding occur, the rapid recovery, storage and transfusion of blood is crucial to the life of the injured.

[0003] While existing blood processing equipment can perform simple blood recovery, filtration, and storage in blood storage bags, it lacks effective temperature management. Due to the complex and ever-changing outdoor environment and large temperature fluctuations, the quality of stored blood can be easily affected, such as causing blood deterioration or the precipitation of undesirable substances. If such blood is transfused back into an injured patient, it can pose serious health risks or even life-threatening dangers. Therefore, the development of a blood storage bag that can regulate the temperature of stored blood is particularly urgent and necessary. Utility Model Content

[0004] In order to control the temperature of blood in a blood storage bag, the present application provides a temperature-adjustable blood storage bag.

[0005] The present application provides a temperature-adjustable blood storage bag, which adopts the following technical solution:

[0006] A temperature-adjustable blood storage bag, comprising:

[0007] A blood storage device comprising a blood storage bag, a blood inlet blood vessel and a blood transfusion blood vessel, wherein the blood inlet blood vessel and the blood transfusion blood vessel are respectively connected to the blood storage bag;

[0008] A temperature control device comprising a water storage bag, a water inlet pipe and a water outlet pipe, wherein the water inlet pipe and the water outlet pipe are respectively connected to the water storage bag;

[0009] The heat exchange interface is located between the blood storage bag and the water storage bag, so that the two can transfer and exchange heat through the interface.

[0010] By adopting the above technical solution, heat can be transferred between the blood storage bag and the water storage bag through heat exchange, so that the temperature of the blood in the blood storage bag can be controlled and adjusted by changing the water temperature in the water storage bag, thereby ensuring the stability and safety of the blood during storage and reducing the risk of blood quality deterioration due to temperature changes.

[0011] Optionally, the water storage bag is arranged in the blood storage bag, and a cavity for accommodating blood is formed between the outer wall of the water storage bag and the inner wall of the blood storage bag.

[0012] By adopting this technical solution, the water bag is built into the blood bag, creating a cavity between the two to hold the blood. This compact design effectively utilizes space and improves the device's portability. Furthermore, the built-in water bag makes heat exchange more direct and efficient, shortening temperature adjustment time and improving the device's practicality and responsiveness.

[0013] Optionally, a special-shaped channel for reciprocating water flow is provided in the water storage bag, one end of the special-shaped channel is connected to the water inlet pipe, and the other end of the special-shaped channel is connected to the water outlet pipe.

[0014] By adopting this technical solution, a special-shaped channel is provided within the water storage bag to guide the reciprocating flow of water, increasing the contact area and duration between the water and the heat exchange interface, thereby improving heat exchange efficiency. This design helps to more quickly reach and maintain the set blood temperature, ensuring accurate and stable temperature control.

[0015] Optionally, the water storage bag is fixed in the blood storage bag by hot melting.

[0016] By adopting the above technical solution, the water storage bag is firmly installed in the blood storage bag by hot-melt fixing, thereby avoiding the problem of displacement or leakage that may occur during use and enhancing the overall stability and safety of the equipment.

[0017] Optionally, male Luer connectors are provided at the tube openings of the blood inlet and the blood delivery tube.

[0018] By adopting the above technical solution, male Luer connectors are provided at the tube openings of the blood inlet and blood transfusion tubes, which facilitates quick connection and disconnection with other medical equipment or infusion devices, thereby improving the convenience and flexibility of operation.

[0019] Optionally, female Luer connectors are provided at the pipe openings of the water inlet pipe and the water outlet pipe.

[0020] By adopting this technical solution, female Luer connectors are used at the inlet and outlet pipes, working in conjunction with male Luer connectors to achieve a reliable connection between the temperature control system and the external water source. This design ensures smooth water flow and a tight seal at the joints, preventing water leaks from adversely affecting the equipment and the environment.

[0021] Optionally, the blood inlet tube is provided with a fluid-stopping clamp for limiting the passage of blood, and the blood transfusion tube is also provided with the fluid-stopping clamp.

[0022] By adopting the above technical solution, the installation of stop clamps on the inlet and outlet blood vessels can control blood flow as needed, preventing accidental blood outflow when not needed. This design improves the safety of the device and avoids blood waste or contamination caused by improper operation.

[0023] Optionally, the liquid stop clamp includes a clamp body, a clamping joint, a socket tooth, a first protrusion and a second protrusion, the clamp body is an elliptical structure with an opening, and the upper and lower side walls of the clamp body are provided with a clearance hole for the blood inlet or the blood transfusion blood to pass through, the clamping joint is arranged on one side of the opening of the clamp body, and the socket tooth is arranged on the inner wall on the other side of the opening of the clamp body, the first protrusion and the second protrusion are arranged on two side walls corresponding to each other on the inner side of the clamp body, the blood inlet or the blood transfusion blood can pass through between the first protrusion and the second protrusion, and when the clamping joint is bent toward the socket tooth, the clamping joint can be clamped to the socket tooth, the first protrusion and the second protrusion approach each other and squeeze the blood inlet or the blood transfusion blood.

[0024] Optionally, the blood storage bag is provided with a hanging hole for conveniently fixing the blood storage bag.

[0025] By adopting the above technical solution, a hanging hole is opened on the blood storage bag, which makes it convenient for medical staff to fix the storage bag on an infusion stand or other supporting structures, thereby improving the stability and operability of the equipment.

[0026] In summary, this application has at least one of the following beneficial effects:

[0027] 1. By combining the blood storage device, temperature control device and heat exchange interface, precise control and rapid adjustment of blood temperature are achieved, ensuring the stability and safety of blood during storage;

[0028] 2. By placing the water storage bag inside the blood storage bag and providing a special-shaped channel inside the water storage bag, the space is effectively utilized and the heat exchange interface is improved, thereby improving the heat exchange efficiency. BRIEF DESCRIPTION OF THE DRAWINGS

[0029] Figure 1 It is a structural diagram of an embodiment of the present application;

[0030] Figure 2 It is a schematic diagram of the structure of the blood storage device;

[0031] Figure 3 It is a structural diagram of the temperature control device;

[0032] Figure 4 2 is a schematic cross-sectional structural diagram of the present embodiment;

[0033] Figure 5It is a structural diagram of the liquid stop clamp.

[0034] Explanation of the accompanying reference numerals: 1. blood storage device; 11. blood storage bag; 12. blood inlet; 13. blood transfusion tube; 14. male Luer connector; 15. hanging hole; 2. temperature control device; 21. water storage bag; 22. water inlet pipe; 23. water outlet pipe; 24. female Luer connector; 3. special-shaped channel; 4. liquid-stop clamp; 41. clamp body; 42. card joint; 43. socket tooth; 44. first protrusion; 45. second protrusion. DETAILED DESCRIPTION

[0035] The following is combined with Figure 1-5 This application is described in further detail.

[0036] The present application discloses a temperature-adjustable blood storage bag. Figure 1 The blood storage bag mainly includes a blood storage device 1 and a temperature control device 2. The blood storage device 1 is used to store the recovered filtered blood. The temperature control device 2 is used to control the temperature of the blood stored in the blood storage device 1 so that it always maintains a suitable temperature to prevent the blood from deteriorating due to excessively high or low temperature.

[0037] Reference Figure 1 and Figure 2 In this embodiment, the blood storage device 1 includes a blood storage bag 11, an inlet blood vessel 12, and a blood transfusion tube 13. The blood storage bag 11 is preferably formed from two sheets of film material by ultrasonic heat fusion into a rectangular bag body, which is sealed on all sides and used to hold blood. The lower end is heat-sealed to the inlet blood vessel 12 and the blood transfusion tube 13 to facilitate blood transport. Furthermore, the orifices of the inlet blood vessel 12 and the blood transfusion tube 13 are provided with male Luer connectors 14, also known as internal swivel connectors, which are standardized, micro-viscosity-free connectors. The orifice of the inlet blood vessel 12 is connected to the blood processing equipment via the male Luer connector 14, allowing the recovered, filtered blood to be injected into the blood storage bag 11 for storage. The blood transfusion tube 13 is connected to the infusion and blood transfusion device via the male Luer structure to transport the blood back to the human body.

[0038] Reference Figure 1 and Figure 3In this embodiment, the water storage device includes a water storage bag 21, a water inlet pipe 22 and a water outlet pipe 23; wherein, the water storage bag 21 can also be made of two sheet-shaped membrane materials, which are ultrasonically hot-melted to form a rectangular bag body for containing water; the water inlet pipe 22 and the water outlet pipe 23 are both fixed to the lower end of the water storage bag 21, and a female Luer connector 24 is provided at the pipe opening of the water inlet pipe 22 and the water outlet pipe 23. The female Luer connector 24 is also a standardized micro-viscosity joint that can be connected to the male Luer connector 14 on other equipment; in this embodiment, the blood storage bag 11 is used in conjunction with a water temperature control device. When in use, water flows from the water temperature control device through the water inlet pipe 22 into the water storage bag 21, and then flows back to the water temperature control device from the water outlet pipe 23, so that the water in the water storage bag 21 maintains the required temperature.

[0039] Reference Figure 1 and Figure 4 A heat exchange interface is provided between the blood bag 11 and the water bag 21, thereby allowing temperature to be transferred between the two. By changing the temperature of the water flow in the water bag 21, the temperature of the blood in the blood bag 11 can be changed and maintained through heat exchange. There are various ways to dispose the blood bag 11 and the water bag 21 relative to each other. The blood bag 11 and the water bag 21 can be placed close together, the water bag 21 can be placed inside the blood bag 11, or the blood bag 11 can be placed inside the water bag 21. In this embodiment, preferably, the water bag 21 is placed inside the blood bag 11, and a cavity for accommodating blood is formed between the outer wall of the water bag 21 and the inner wall of the blood bag 11.

[0040] Specifically, ultrasonic heat fusion is used to form a shaped channel 3 on the sidewall of the water bag 21, through which the water flows back and forth. This shaped channel 3 forms a winding S-shape, connected at one end to the water inlet pipe 22 and at the other end to the water outlet pipe 23. This shaped channel 3 increases the time it takes for water to flow through the water bag 21, increasing the area of the heat exchange interface between the water bag 21 and the blood bag 11, thereby enhancing the heat exchange effect. Simultaneously, the side of the water bag 21 closest to the water inlet pipe 22 is heat-fused to the side of the blood bag 11, securing the water bag 21 within the blood bag 11.

[0041] Reference Figure 1 and Figure 5To facilitate the use of the blood storage bag, in an optional embodiment, a stop clamp 4 is provided on both the inlet blood vessel 12 and the blood transfusion tube 13 to facilitate timely restriction of blood flow through the inlet blood vessel 12 or the blood transfusion tube 13. Specifically, the stop clamp 4 includes a clamp body 41, a clamping joint 42, a spigot 43, and a first protrusion 44 or a second protrusion 45. The clamp body 41 is made of an elastic plastic material and has an elliptical overall structure with an opening at one end. Clearance holes for the inlet blood vessel 12 or the blood transfusion tube 13 are provided on the upper and lower sidewalls of the clamp body 41. The first protrusion 44 and the second protrusion 45 are integrally formed on two corresponding sidewalls on the inner side of the clamp body 41. The inlet blood vessel 12 or the blood transfusion tube 13 can pass between the first protrusion 44 and the second protrusion 45.

[0042] The clamping joint 42 is integrally formed on one side of the opening of the clamp body 41, and is preferably a pointed structure. The socket tooth 43 is fixed to the inner wall on the other side of the opening of the clamp body 41, and has a row of teeth along the extension direction of the clamp body 41. When the clamping joint 42 is bent toward the socket tooth 43, the clamping joint 42 can be clamped between different teeth of the socket tooth 43, thereby fixing the clamping joint 42 on the socket tooth 43, and can adjust the distance between the first protrusion 44 and the second protrusion 45, thereby limiting the blood from passing through the blood inlet 12 or the blood transfusion tube 13, and can also change the blood circulation rate by changing the blood circulation area.

[0043] Reference Figure 1 and Figure 3 In this embodiment, in order to facilitate blood transfusion, the blood bag 11 is provided with hanging holes 15 for conveniently fixing the blood bag 11 . The hanging holes 15 are preferably respectively opened on the four corners of the blood bag 11 .

[0044] The implementation principle of a temperature-adjustable blood storage bag in the embodiment of the present application is as follows:

[0045] During use, when the outdoor temperature is above 40°C, the cooling switch and water circulation switch of the water temperature control device are activated, and water set at 10°C enters the water storage bag 21 of the temperature-adjustable blood storage bag through the water inlet pipe 22. The water flows along the designed special-shaped channel 3 and returns to the water temperature control device through the water outlet pipe 23. During this process, the water circulates along the specific path, removing the heat from the blood in the blood storage bag 11, achieving a heat exchange and cooling effect, effectively preventing the occurrence of blood deterioration due to high temperature and being unable to be re-transfused to the patient.

[0046] When the outdoor temperature is below 0°C, the heating switch and water circulation switch of the water temperature control device are activated, and water set at 35°C is introduced into the water storage bag 21 of the temperature-adjustable blood storage bag through the water inlet pipe 22. The water flows along the designed special-shaped channel 3 and returns to the water temperature control device through the water outlet pipe 23. The water circulates along the specific path, transferring heat to the blood in the blood storage bag 11, achieving the effect of heat exchange and temperature increase, effectively preventing the occurrence of blood freezing and precipitation of undesirable substances due to low temperature, which makes it impossible to re-transfuse the patient.

[0047] The above are all preferred embodiments of the present application, and are not intended to limit the scope of protection of the present application. Therefore, any equivalent changes made based on the structure, shape, and principle of the present application should be included in the scope of protection of the present application.

Claims

1. A temperature-adjustable blood storage bag, characterized in that: include: A blood storage device (1) comprising a blood storage bag (11), a blood inlet blood vessel (12) and a blood transfusion blood vessel (13), wherein the blood inlet blood vessel (12) and the blood transfusion blood vessel (13) are respectively connected to the blood storage bag (11); A temperature control device (2), comprising a water storage bag (21), a water inlet pipe (22), and a water outlet pipe (23), wherein the water inlet pipe (22) and the water outlet pipe (23) are respectively connected to the water storage bag (21); A heat exchange interface is located between the blood storage bag (11) and the water storage bag (21), enabling the two to transfer and exchange heat through the interface.

2. The temperature-adjustable blood storage bag according to claim 1, characterized in that: The water storage bag (21) is arranged in the blood storage bag (11), and a cavity for accommodating blood is formed between the outer wall of the water storage bag (21) and the inner wall of the blood storage bag (11).

3. The temperature-adjustable blood storage bag according to claim 2, characterized in that: The water storage bag (21) is provided with a special-shaped channel (3) for reciprocating water flow, one end of the special-shaped channel (3) is connected to the water inlet pipe (22), and the other end of the special-shaped channel (3) is connected to the water outlet pipe (23).

4. The temperature-adjustable blood storage bag according to claim 3, characterized in that: The water storage bag (21) is fixed in the blood storage bag (11) by hot melting.

5. The temperature-adjustable blood storage bag according to claim 1, characterized in that: The inlet blood vessel (12) and the blood supply blood vessel (13) are both provided with male Luer connectors (14) at their orifices.

6. The temperature-adjustable blood storage bag according to claim 1, characterized in that: Female Luer connectors (24) are provided at the pipe openings of the water inlet pipe (22) and the water outlet pipe (23).

7. The temperature-adjustable blood storage bag according to claim 5, characterized in that: The blood inlet (12) is provided with a liquid-stopping clamp (4) for limiting the passage of blood, and the blood transfusion tube (13) is also provided with the liquid-stopping clamp (4).

8. The temperature-adjustable blood storage bag according to claim 7, characterized in that: The liquid-stop clamp (4) comprises a clamp body (41), a clamp joint (42), a socket tooth (43), a first protrusion (44) and a second protrusion (45). The clamp body (41) is an elliptical structure with an opening. The upper and lower side walls of the clamp body (41) are provided with a clearance hole for the inlet blood vessel (12) or the blood supply blood vessel (13) to pass through. The clamp joint (42) is arranged on one side of the opening of the clamp body (41), and the socket tooth (43) is arranged on the inner wall of the other side of the opening of the clamp body (41). A protrusion (44) and a second protrusion (45) are provided on two side walls corresponding to each other on the inner side of the clamp body (41); the blood inlet (12) or the blood transfusion tube (13) can pass between the first protrusion (44) and the second protrusion (45); when the clamping joint (42) is bent toward the socket tooth (43), the clamping joint (42) can be clamped to the socket tooth (43); the first protrusion (44) and the second protrusion (45) approach each other and squeeze the blood inlet (12) or the blood transfusion tube (13).

9. The temperature-adjustable blood storage bag according to claim 1, characterized in that: The blood storage bag (11) is provided with a hanging hole (15) for conveniently fixing the blood storage bag (11).

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