Medical blood warming device for transfusion

Abstract

This invention discloses a blood rewarming device for medical transfusion, relating to the field of medical transfusion technology. It includes a device box with fixed brackets on both sides. Rewarming clips are inserted into the brackets. A groove for wrapping the transfusion tube is formed in the middle of the inner side of the rewarming clip, and a locking groove is formed at the front end of the rewarming clip. When in use, the device effectively blocks the locking grooves at both ends of the rewarming clip through an inner baffle and a retractable inner baffle. This prevents the transfusion tube from shifting axially along the ends of the rewarming clip and getting stuck in the locking groove due to patient movement, accidental contact by medical staff, or external pulling during transfusion. It effectively prevents the transfusion tube from being squeezed, bent, or blocked at the locking groove position, ensuring continuous unobstructed blood flow within the transfusion tube and reducing the occurrence of abnormal transfusion flow rate and hemolysis caused by tube blockage.

Description

Technical Field

[0001] This invention relates to the field of medical transfusion technology, specifically a blood rewarming device for medical transfusion. Background Technology

[0002] Existing medical transfusion blood rewarming devices mostly use rewarming clips made of deformable materials such as rubber to wrap and rewarm the transfusion tubes. The front end of the rewarming clip has a slot so that the transfusion tube can be quickly inserted into the slot.

[0003] During blood transfusion, the transfusion tube is prone to axial displacement along both ends of the rewarming clip due to external forces such as patient limb movement, touch by medical staff, or pulling by the external environment. This can cause the transfusion tube to get stuck in the groove, resulting in local compression and bending of the transfusion tube, which directly leads to obstruction of blood transmission, abnormal flow rate, and even the risk of hemolysis. Therefore, this invention provides a blood rewarming device for medical transfusion to solve the above-mentioned problems. Summary of the Invention

[0004] The purpose of this invention is to provide a blood rewarming device for medical transfusions to solve the problems mentioned in the background art.

[0005] To achieve the above objectives, the present invention provides the following technical solution: A blood rewarming device for medical transfusion includes a device box, on both sides of which are fixedly mounted a fixing frame. A rewarming clip is inserted into the fixing frame. A groove for wrapping the transfusion tube is opened in the middle of the inner side of the rewarming clip. A snap-in groove is opened at the front end of the rewarming clip, and the snap-in groove and the tube groove are interconnected. The top and bottom ends of the reheating clamp are fixedly equipped with anti-jamming components. The anti-jamming components include two protective blocks, which are fixedly installed on the top and bottom of the reheating clamp respectively. The inside and front end of the protective blocks are also provided with tube grooves and locking grooves. A blocking component is movably installed at the front end of the inner side of the protective block. An adjusting component is fixedly installed on the side wall of the protective block away from the equipment box. The blocking component and the adjusting component are fixedly connected to each other. The blocking component includes an inner groove, an inner baffle, and a pull rope. The inner groove is located at the inner front end of the protective block, and the inner groove and the locking groove are interconnected. The inner baffle is slidably installed inside the inner groove. The pull rope is installed at intervals on the side wall of the inner baffle, and the end of the pull rope away from the inner baffle is fixedly connected to the adjusting component.

[0006] As a further embodiment of the present invention, the adjusting component includes an outer adjusting block and a take-up shaft. The outer adjusting block is fixedly installed on the side wall of the protective block, and the interior of the outer adjusting block is hollow. The take-up shaft is rotatably installed inside the outer adjusting block, and the end of the pull rope away from the inner baffle is wound on the side wall of the take-up shaft.

[0007] As a further embodiment of the present invention, the blocking member further includes an adjustment groove, which is formed on the protective block near the side of the outer adjustment block, and the adjustment groove and the inner blocking groove are interconnected. An elastic block is installed inside the adjustment groove, and a pull rope slides through the two side walls of the elastic block. A pressure plate is fixedly installed on the side of the inner baffle near the elastic block, and one end of the pull rope near the inner baffle is fixedly installed on the side wall of the pressure plate.

[0008] As a further embodiment of the present invention, the adjusting component further includes a fixed shaft and a movable shaft. The fixed shaft is fixedly installed on the inner bottom of the outer adjusting block, and the movable shaft is movably installed on the top of the fixed shaft. The take-up shaft is rotatably mounted on the fixed shaft and the movable shaft. The inner side of the take-up shaft is provided with a plurality of slots spaced around the position of the movable shaft. The bottom outer wall of the movable shaft is provided with a plurality of locking strips fixedly installed around the slots.

[0009] As a further embodiment of the present invention, an auxiliary adjustment plate is fixedly installed at the top end of the movable shaft, the top end of the movable shaft slides through the top of the outer adjustment block, a base adjustment plate is fixedly installed at the top of the outer adjustment block, the base adjustment plate is annular, a number of positioning grooves are spaced around the inner wall of the base adjustment plate, and a number of positioning teeth are fixedly installed around the bottom of the auxiliary adjustment plate, the auxiliary adjustment plate is inserted into the positioning grooves on the base adjustment plate through the positioning teeth.

[0010] As a further embodiment of the present invention, a slot is provided at the bottom end of the movable shaft, and an adjustment groove is provided inside the movable shaft. The adjustment groove and the slot are connected to each other. A plug is fixedly installed at the top end of the fixed shaft. The plug is inserted into the inside of the slot. A return spring is fixedly installed at the top end of the plug. The top end of the return spring is rotatably installed at the top end of the inner side of the adjustment groove.

[0011] Compared with the prior art, the beneficial effects of the present invention are: 1. When the device of the present invention is used, the inner baffle groove and the retractable inner baffle inside the protective block effectively block the slots at both ends of the rewarming clip, thus preventing the transfusion tube from being axially displaced along both ends of the rewarming clip and stuck in the slot due to patient movement, accidental contact by medical staff, or external pulling during blood transfusion. This effectively prevents the transfusion tube from being squeezed and bent or blocked at the slot, ensuring the continuous unobstructed blood transmission pathway in the transfusion tube and reducing the occurrence of abnormal blood flow rate and hemolysis caused by tube clamping.

[0012] 2. When the device of the present invention is used, the rigid pressure plate transmits tension and elasticity, which not only prevents the inner baffle from deforming and failing due to force during the extension and retraction movement, ensuring the stability of the sealing shape of the inner baffle in the slot, but also allows the inner baffle to automatically and elastically reset in conjunction with the elastic block, so that the inner baffle can move effectively in the inner slot and block the slot in a plane, effectively ensuring the service life of the device.

[0013] 3. When the device of the present invention is in use, the positioning structure of the positioning groove on the inner wall of the base plate and the positioning teeth at the bottom of the auxiliary plate is engaged and positioned. At the same time, a transmission limiting structure of a slot and a locking strip is provided between the winding shaft and the movable shaft. The rotation angle of the winding shaft is precisely fixed by the engagement and locking. This can lock the contraction position of the inner baffle when the transfusion tube is disassembled and assembled, ensuring the stability of the disassembly and assembly operation. It can also effectively prevent the movable shaft from rotating accidentally and the inner baffle from shifting and loosening during the transfusion operation, avoiding the failure of the anti-jamming structure, and greatly improving the structural stability and safety of the device in clinical use.

[0014] 4. When using the device of the present invention, the protective blocks are installed in the slots at both ends of the rewarming clip, effectively preserving the original structural design of the groove in the middle of the rewarming clip for wrapping the transfusion tube and the internal heating element, without changing the heating wrapping shape and temperature control conduction path of the rewarming clip, reducing any negative impact on blood rewarming efficiency and temperature control accuracy, while enhancing its applicability and greatly improving its scope of application. Attached Figure Description

[0015] Figure 1 This is a schematic diagram of the overall structure of a blood rewarming device for medical transfusion.

[0016] Figure 2 This is a partial structural diagram of a rewarming clip in a medical blood rewarming device for blood transfusion.

[0017] Figure 3 This is a partial cross-sectional view of the protective block in a blood rewarming device for medical transfusion.

[0018] Figure 4 This is a partial structural diagram of the winding shaft in a blood rewarming device for medical transfusion.

[0019] Figure 5 This is a schematic diagram showing a partial disassembly of the fixed shaft and the movable shaft in a blood rewarming device for medical transfusion.

[0020] In the diagram: 1. Equipment box; 2. Fixing frame; 3. Reheating clamp; 4. Connecting wire; 5. Connector; 6. Snap-in slot; 7. Protective block; 8. Inner baffle slot; 9. Adjustment slot; 10. Inner baffle plate; 11. Pressure plate; 12. Elastic block; 13. Pull rope; 14. Outer adjustment block; 15. Base adjustment plate; 16. Auxiliary adjustment plate; 17. Rewinding shaft; 18. Slot; 19. Fixed shaft; 20. Insert rod; 21. Return spring; 22. Movable shaft; 23. Slot; 24. Adjustment slot; 25. Clamping strip; 26. Positioning slot; 27. Positioning tooth. Detailed Implementation

[0021] The technical solutions of the embodiments of the present invention will be clearly and completely described below with reference to the accompanying drawings. Obviously, the described embodiments are only some embodiments of the present invention, and not all embodiments. Based on the embodiments of the present invention, all other embodiments obtained by those skilled in the art without creative effort are within the scope of protection of the present invention.

[0022] Please see Figures 1-5 In this embodiment of the invention, a blood rewarming device for medical transfusion includes a device box 1. The device box 1 is equipped with a control panel and a temperature control device. The temperature control device and the control panel are electrically connected to each other. The temperature control device can be adjusted and controlled through the control panel. Two connectors 5 are installed at the bottom of the device box 1. The connectors 5 are electrically connected to the output end of the temperature control device. Fixing frames 2 are fixedly installed on both sides of the device box 1. A rewarming clip 3 is inserted into the fixing frame 2. A groove for wrapping the transfusion tube is opened in the middle of the inner side of the rewarming clip 3. A snap-in groove 6 is opened at the front end of the rewarming clip 3. The snap-in groove 6 is connected to the groove. The rewarming clip 3 is made of a deformable material. The material of the rewarming clip 3 includes, but is not limited to, rubber. A heating element is installed inside the rewarming clip 3. The heating element includes, but is not limited to, a heating tube. A connecting wire 4 is electrically connected to the input end of the heating element. The end of the connecting wire 4 away from the rewarming clip 3 can be inserted into the connector 5. The infusion tube can be installed in the groove 6 on the rewarming clip 3, allowing the rewarming clip 3 to wrap around the infusion tube. The temperature control device is operated through the control panel to start the heating element through the connecting line 4 and keep the heating element within the specified temperature range, thereby completing the rewarming operation of the blood in the infusion tube.

[0023] The top and bottom ends of the rewarming clip 3 are fixedly equipped with anti-jamming components. The anti-jamming components can prevent the rewarming clip 3 from shifting and getting stuck in the slot 6 due to patient movement, medical staff movement, or accidental contact with the external environment during blood transfusion operations. This effectively prevents the blood transfusion tube from being clamped during operations, thus avoiding any impact on blood transfusion.

[0024] The anti-jamming component includes two protective blocks 7. The two protective blocks 7 are fixedly installed on the top and bottom of the reheating clamp strip 3 respectively. The inside and front end of the protective blocks 7 are also provided with tube grooves and locking grooves 6. A blocking component is movably installed at the front end of the inner side of the protective block 7. An adjusting component is fixedly installed on the side wall of the protective block 7 away from the equipment box 1. The blocking component and the adjusting component are fixedly connected to each other. The blocking component can block the front end of the protective block 7 from entering the slot 6, preventing the infusion tube from moving out of the slot 6 and getting stuck inside. By adjusting the adjusting component, the blocking component can be moved at the front end of the protective block 7. At this time, the blocking component no longer blocks the front end of the protective block 7 from entering the slot 6, and the infusion tube can be moved out and put into the inner tube groove of the protective block 7.

[0025] The blocking component includes an inner groove 8, an inner baffle 10, and a pull rope 13. The inner groove 8 is located at the inner front end of the protective block 7, and the inner groove 8 and the snap-in groove 6 are interconnected. The inner baffle 10 is slidably installed inside the inner groove 8. The inner baffle 10 is made of a material that can be elastically deformed. The material of the inner baffle 10 includes, but is not limited to, rubber. The pull rope 13 is installed at intervals on the side wall of the inner baffle 10. The end of the pull rope 13 away from the inner baffle 10 is fixedly connected to the adjusting component. The adjusting component includes an outer adjusting block 14 and a take-up shaft 17. The outer adjusting block 14 is fixedly installed on the side wall of the protective block 7. The interior of the outer adjusting block 14 is hollow. The take-up shaft 17 is rotatably installed inside the outer adjusting block 14. The end of the pull rope 13 away from the inner baffle 10 is wound on the side wall of the take-up shaft 17. By rotating the take-up shaft 17, the inner baffle 10 can be moved within the inner groove 8.

[0026] The blocking component also includes an adjustment groove 9, which is opened on the protective block 7 near the outer adjustment block 14. The adjustment groove 9 and the inner blocking groove 8 are interconnected. An elastic block 12 is installed inside the adjustment groove 9. The elastic block 12 can be elastically deformed and adjusted. The pull rope 13 slides through the two side walls of the elastic block 12. A pressure plate 11 is fixedly installed on the inner baffle 10 near the elastic block 12. The pressure plate 11 is made of rigid material. The end of the pull rope 13 near the inner baffle 10 is fixedly installed on the side wall of the pressure plate 11. Through the rigid material pressure plate 11, the pressure plate 11 can squeeze the elastic block 12 when it moves, so as to prevent the inner baffle 10 from deforming due to pressure during movement.

[0027] The adjusting component also includes a fixed shaft 19 and a movable shaft 22. The fixed shaft 19 is fixedly installed on the inner bottom of the outer adjusting block 14, and the movable shaft 22 is movably installed on the top of the fixed shaft 19. The take-up shaft 17 is rotatably mounted on the fixed shaft 19 and the movable shaft 22. The inner side of the take-up shaft 17 is provided with a number of slots 18 at intervals around the position of the movable shaft 22. The bottom outer wall of the movable shaft 22 is provided with a number of clips 25 at intervals around the same number of slots 18 and clips 25. The length of the slot 18 is twice the length of the clip 25. The clips 25 are slidably engaged in the slots 18. By rotating the movable shaft 22, the movable shaft 22 can drive the winding shaft 17 to rotate within the outer adjusting block 14 through the locking strip 25 and the locking groove 18. Then, under the pull of the pull rope 13, the inner baffle 10 moves towards the side of the outer adjusting block 14 within the inner blocking groove 8. At the same time, when the pressure plate 11 moves towards the side of the outer adjusting block 14, it will squeeze the elastic block 12, causing the elastic block 12 to elastically contract and adjust. When the rotational force of the movable shaft 22 disappears, the elasticity of the elastic block 12 can drive the inner baffle 10 to reset and move within the inner blocking groove 8.

[0028] An auxiliary adjustment plate 16 is fixedly installed at the top of the movable shaft 22. The top of the movable shaft 22 slides through the top of the outer adjustment block 14. A base adjustment plate 15 is fixedly installed at the top of the outer adjustment block 14. The base adjustment plate 15 is annular. Several positioning grooves 26 are spaced around the inner wall of the base adjustment plate 15. Several positioning teeth 27 are fixedly installed around the bottom of the auxiliary adjustment plate 16. The auxiliary adjustment plate 16 is inserted into the positioning grooves 26 on the base adjustment plate 15 through the positioning teeth 27. The positioning grooves 26 in the base adjustment plate 15 and the positioning teeth 27 on the auxiliary adjustment plate 16 can restrict the rotation of the movable shaft 22. By lifting the auxiliary adjustment plate 16, the auxiliary adjustment plate 16 drives the movable shaft 22 to move upward, thereby separating the positioning teeth 27 from the positioning grooves 26. At this time, by rotating the auxiliary adjustment plate 16, the movable shaft 22 can be driven to rotate, and then the winding shaft 17 is driven to rotate in the outer adjustment block 14 through the locking strip 25 and the locking groove 18.

[0029] The bottom end of the movable shaft 22 is provided with a slot 23, and the inside of the movable shaft 22 is provided with an adjustment groove 24. The adjustment groove 24 and the slot 23 are connected to each other. The top end of the fixed shaft 19 is fixedly installed with a plug rod 20, which is inserted into the inside of the slot 23. The top end of the plug rod 20 is fixedly installed with a return spring 21, which is rotatably installed on the top of the inner side of the adjustment groove 24. By pulling the auxiliary adjustment plate 16, the auxiliary adjustment plate 16 drives the movable shaft 22 to move upward on the fixed shaft 19. At the same time, it pulls the return spring 21 to undergo elastic deformation. At this time, by rotating the auxiliary adjustment plate 16, the movable shaft 22 drives the take-up shaft 17 to rotate in the outer adjustment block 14 through the locking strip 25 and the locking groove 18. When it rotates to the designated position, the auxiliary adjustment plate 16 is pressed down, so that the positioning teeth 27 on the auxiliary adjustment plate 16 are engaged in the corresponding positioning groove 26 in the base adjustment plate 15, thus completing the rotation locking of the take-up shaft 17.

[0030] The working principle of this invention is: When using this invention, by pulling the auxiliary adjustment plate 16 upward and rotating it, the movable shaft 22 drives the winding shaft 17 to rotate through the locking strip 25 and the locking groove 18 on the winding shaft 17. This drives the pull rope 13 to wind up on the winding shaft 17, causing it to pull the pressure plate 11 to move closer to the outer adjustment block 14 and squeeze the elastic block 12. At the same time, the inner baffle 10 will move towards the outer adjustment block 14 and will not block the locking groove 6. At this time, the infusion tube can be inserted into the tube groove on the protective block 7 and the rewarming clamp 3 through the locking groove 6. The connecting wire 4 is inserted into the plug 5. By operating the control panel on the equipment box 1, the temperature control device can adjust the temperature of the heating element on the rewarming clamp 3 to rewarm the blood in the infusion tube. After the transfusion tube is installed, the auxiliary adjustment plate 16 is rotated in the opposite direction, causing the winding shaft 17 to reset and rotate within the outer adjustment block 14. The elastic force of the elastic block 12 resets the inner baffle 10, which moves it into the inner baffle groove 8. The inner baffle 10 then blocks the insertion groove 6. At this time, regardless of patient activity, medical staff activity, or external environmental influences, the transfusion tube will not get stuck in the insertion groove 6 at both ends of the rewarming clip 3. This effectively reduces the occurrence of transfusion operations being disrupted due to the transfusion tube being clamped during the transfusion process.

[0031] When it is necessary to remove the infusion tube, the auxiliary adjustment plate 16 is lifted and rotated, causing the auxiliary adjustment plate 16 to drive the winding shaft 17 to rotate via the locking strip 25 on the movable shaft 22 and the locking groove 18 on the winding shaft 17. This pulls the inner baffle 10 to move within the inner baffle groove 8, so that the inner baffle 10 no longer obstructs the locking groove 6. At this time, by pressing down the auxiliary adjustment plate 16, the positioning teeth 27 on the auxiliary adjustment plate 16 are inserted into the positioning groove 26 on the base plate 15, thereby locking the rotation angle of the winding shaft 17, so that the infusion tube can be removed from the tube groove through the locking groove 6, thus completing the disassembly operation.

[0032] The above description is only a preferred embodiment of the present invention, but the scope of protection of the present invention is not limited thereto. Any equivalent substitutions or modifications made by those skilled in the art within the scope of the technology disclosed in the present invention, based on the technical solution and inventive concept of the present invention, should be covered within the scope of protection of the present invention.

Claims

1. A blood rewarming device for medical transfusion, comprising a device box (1), characterized in that: The device box (1) is fixedly installed with a fixing frame (2) on both sides. A rewarming clip (3) is inserted into the fixing frame (2). A tube groove for wrapping the transfusion tube is opened in the middle of the inner side of the rewarming clip (3). A snap-in groove (6) is opened at the front end of the rewarming clip (3). The snap-in groove (6) and the tube groove are interconnected. The top and bottom ends of the reheating clamp (3) are fixedly equipped with anti-jamming components. The anti-jamming components include protective blocks (7). There are two protective blocks (7). The two protective blocks (7) are fixedly installed on the top and bottom of the reheating clamp (3) respectively. The inside and front end of the protective block (7) are also provided with pipe grooves and locking grooves (6). A blocking component is movably installed at the front end of the inner side of the protective block (7). An adjusting component is fixedly installed on the side wall of the protective block (7) away from the equipment box (1). The blocking component and the adjusting component are fixedly connected to each other. The blocking component includes an inner groove (8), an inner baffle (10), and a pull rope (13). The inner groove (8) is located at the inner front end of the protective block (7), and the inner groove (8) and the locking groove (6) are interconnected. The inner baffle (10) is slidably installed inside the inner groove (8). The pull rope (13) is installed at intervals on the side wall of the inner baffle (10), and the end of the pull rope (13) away from the inner baffle (10) is fixedly connected to the adjusting component.

2. The blood rewarming device for medical transfusion according to claim 1, characterized in that: The adjusting component includes an outer adjusting block (14) and a take-up shaft (17). The outer adjusting block (14) is fixedly installed on the side wall of the protective block (7). The interior of the outer adjusting block (14) is hollow. The take-up shaft (17) is rotatably installed inside the outer adjusting block (14). The end of the pull rope (13) away from the inner baffle (10) is wound on the side wall of the take-up shaft (17).

3. The blood rewarming device for medical transfusion according to claim 2, characterized in that: The blocking component also includes a receiving groove (9), which is opened on the protective block (7) near the outer adjusting block (14) and the receiving groove (9) and the inner blocking groove (8) are interconnected. An elastic block (12) is installed inside the receiving groove (9), and the pull rope (13) slides through the two side walls of the elastic block (12). A pressure plate (11) is fixedly installed on the side of the inner baffle (10) near the elastic block (12), and one end of the pull rope (13) near the inner baffle (10) is fixedly installed on the side wall of the pressure plate (11).

4. The blood rewarming device for medical transfusion according to claim 3, characterized in that: The adjusting component also includes a fixed shaft (19) and a movable shaft (22). The fixed shaft (19) is fixedly installed on the inner bottom of the outer adjusting block (14), and the movable shaft (22) is movably installed on the top of the fixed shaft (19). The take-up shaft (17) is rotatably mounted on the fixed shaft (19) and the movable shaft (22). The inner side of the take-up shaft (17) is provided with several slots (18) at intervals around the position of the movable shaft (22). Several locking strips (25) are fixedly installed around the bottom outer wall of the movable shaft (22) at intervals. The locking strips (25) are slidably locked in the slots (18).

5. A blood rewarming device for medical transfusion according to claim 4, characterized in that: An auxiliary adjustment plate (16) is fixedly installed at the top of the movable shaft (22). The top of the movable shaft (22) slides through the top of the outer adjustment block (14). A base adjustment plate (15) is fixedly installed at the top of the outer adjustment block (14). The base adjustment plate (15) is annular. Several positioning grooves (26) are spaced around the inner wall of the base adjustment plate (15). Several positioning teeth (27) are fixedly installed around the bottom of the auxiliary adjustment plate (16). The auxiliary adjustment plate (16) is inserted into the positioning grooves (26) on the base adjustment plate (15) through the positioning teeth (27).

6. A blood rewarming device for medical transfusion according to claim 5, characterized in that: The bottom end of the movable shaft (22) is provided with a slot (23), and the interior of the movable shaft (22) is provided with an adjustment groove (24). The adjustment groove (24) and the slot (23) are connected to each other. The top end of the fixed shaft (19) is fixedly installed with a plug (20). The plug (20) is inserted into the interior of the slot (23). The top end of the plug (20) is fixedly installed with a return spring (21). The top end of the return spring (21) is rotatably installed on the inner top end of the adjustment groove (24).

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