Speed-controlled heating blood transfusion instrument

Abstract

The utility model discloses a speed-controlled heating blood transfusion instrument, belongs to the technical field of medical instruments, and solves the problems that in the prior art, a blood transfusion instrument needs to be reheated in advance before infusion during use, and the reheating operation process is complex. A speed-controlled heating blood transfusion instrument comprises a machine frame, a blood transfusion tube, a temperature measuring sensor, a blood transfusion tube clamping component, a peristaltic blood feeding component and a heating pad. A heating pad is installed on the groove wall of the semicircular groove, and a temperature measuring sensor used for detecting the output side of the blood transfusion tube is installed on the machine frame. According to the speed-controlled heating blood transfusion instrument, the heating pad is arranged in the machine frame, blood is heated in the conveying process, the heating power of the heating pad is adjusted and controlled through the temperature detected by the temperature measuring sensor, and the purpose of rapid rewarming is achieved. Meanwhile, the blood transfusion tube can be automatically pressed between the rotating wheel and the heating pad through rotation of the rotating disc, the heating pad does not need to be independently installed on the blood transfusion tube, and rapid and efficient rewarming operation is achieved.

Description

Technical Field

[0001] The utility model belongs to the technical field of medical devices, and particularly relates to a speed-controlled blood transfusion warmer. Background Art

[0002] Blood transfusion has become an indispensable and extremely important treatment method in modern medical means. The storage temperature of red blood cell blood products is 2°C - 6°C. Conventional blood transfusion patients need to rewarm the blood products before transfusion, and room temperature rewarming will delay the blood transfusion time of patients. If critically ill patients in urgent need of blood transfusion directly receive incompletely rewarmed blood products, it will cause the patient's body temperature to drop, and in severe cases, it may lead to hypothermia. Hypothermia can cause various complications such as arrhythmia, coagulation disorders, immunosuppression, electrolyte disorders, respiratory depression, pulmonary edema, consciousness disorders, cognitive function decline, tissue ischemia necrosis, and reduced organ perfusion. Therefore, clinical blood rewarming is of great significance.

[0003] Most existing blood transfusion devices are pressurized blood transfusion devices, which directly apply physical pressure to the blood bag to accelerate the blood transfusion speed. However, the pressurized blood transfusion device cannot accurately control the blood transfusion speed, and at the same time, as the blood products in the blood bag decrease, the pressure will be insufficient, resulting in a decrease in the blood transfusion speed.

[0004] Existing blood rewarming mainly relies on room temperature rewarming or uses a separate heating device to rewarm the blood. The rewarming time of red blood cell blood products is about half an hour. The rewarming time is relatively long and requires manual control of the rewarming time, which delays the rescue of critically ill patients. Therefore, slow rewarming speed and complex rewarming process during blood transfusion are the disadvantages of the existing technology. Content of the Utility Model

[0005] In view of the above analysis, the utility model aims to provide a speed-controlled blood transfusion warmer to solve the problems in the prior art that the blood needs to be rewarmed in advance, the rewarming operation process is complex, and the speed cannot be accurately controlled during the use of the blood transfusion device.

[0006] The purpose of the utility model is mainly achieved through the following technical solutions:

[0007] The utility model provides a speed-controlled blood transfusion warmer, which includes a frame, a blood transfusion tube, a temperature measuring sensor, a blood transfusion tube clamping member, a peristaltic blood feeding member, and a warming pad; the blood transfusion tube is installed on the side wall of the semi-circular groove of the frame, the peristaltic blood feeding member is installed on the frame, and the peristaltic blood feeding member can cooperate with the side wall of the semi-circular groove to squeeze the blood transfusion tube, so that the two sides inside the blood transfusion tube at the squeezed part are in a non-connected state. The warming pad is installed on the groove wall of the semi-circular groove, the temperature measuring sensor for detecting the output side of the blood transfusion tube is installed on the frame, and the blood transfusion tube clamping member for fixing the output side and the input side of the blood transfusion tube is provided on the frame.

[0008] Further, the blood transfusion tube clamping member includes a pressing plate, a hinged rod, a movable pressing block, a fixed pressing block, a telescopic spring and a positioning assembly; the pressing plate is fixed at the upper end of the telescopic spring, one ends of the hinged rods are respectively hinged on both sides of the pressing plate, the other ends of the hinged rods are hinged with the movable pressing block, a slide rail is fixed on the frame, the movable pressing block is slidably connected to the slide rail, and the cooperation between the movable pressing block and the fixed pressing block fixed on the frame can fix the blood transfusion tube, and the positioning assembly is installed on the pressing plate.

[0009] Further, the peristaltic blood delivery member includes a motor, an output shaft, a rotating frame and rotating wheels; the output shaft is installed on the motor, a pair of rotating frames are installed on the output shaft, and at least two evenly distributed rotating wheels are installed between the rotating frames.

[0010] Further, a rotating disk is installed on the peristaltic blood delivery member, and a notch is formed in the rotating disk.

[0011] Further, the positioning assembly includes a plug pin and a positioning pin seat; the plug pin is slidably connected inside the pressing plate, and the plug pin can be inserted into the positioning pin seat fixed on the frame.

[0012] Further, rubber friction particles are provided on the inner sides of the movable pressing block and the fixed pressing block.

[0013] Further, a cross beam is fixed on the surface of the rotating disk, and the cross beam can drive the rotating disk to rotate.

[0014] Further, the peristaltic blood delivery member and the rotating disk are fixed by an internal hexagonal bolt.

[0015] Further, the number of the rotating wheels is 4.

[0016] Further, a circular groove is formed in the frame, and one end of the telescopic spring is fixed on the groove wall of the circular groove.

[0017] Compared with the prior art, the present utility model can at least achieve one of the following beneficial effects:

[0018] 1. For the speed-controlled and temperature-raising blood transfusion instrument provided by the present utility model, by arranging a heating pad inside the frame, the blood is heated during the transportation process, and then the temperature of the blood is detected by a temperature measuring sensor, and the heating power of the heating pad is regulated according to the detected temperature, so as to achieve the purpose of rapid rewarming. At the same time, when the blood transfusion tube is placed at the notch on the rotating disk of the peristaltic blood delivery member, the rotation of the rotating disk can automatically press the blood transfusion tube between the rotating wheel and the heating pad, without separately installing the heating pad on the blood transfusion tube, thus realizing the rapid and efficient rewarming operation.

[0019] 2. The speed-controlled and temperature-controlled blood transfusion device provided by the present utility model can achieve precise control of the blood transfusion speed through the peristaltic blood delivery structure.

[0020] 3. The blood transfusion tube clamping member provided by the present utility model can quickly fix the input side and the output side of the blood transfusion tube through the pressing plate, the hinge rod, the movable pressing block, the fixed pressing block, the telescopic spring and the positioning assembly, further improving the installation efficiency during blood transfusion preparation.

[0021] Other features and advantages of the present utility model will be described in the following specification. Moreover, some features and advantages will become obvious from the specification or can be understood by implementing the present utility model. The objectives and other advantages of the present utility model can be achieved and obtained through the structures specifically pointed out in the written specification and the attached drawings. Brief Description of the Drawings

[0022] The drawings are only for the purpose of showing specific embodiments and are not considered as a limitation to the present utility model. Throughout the drawings, the same reference signs denote the same components.

[0023] Figure 1 It is a schematic structural diagram of a speed-controlled and temperature-controlled blood transfusion device of the present utility model.

[0024] Figure 2 It is a schematic structural diagram of the peristaltic blood delivery structure of a speed-controlled and temperature-controlled blood transfusion device of the present utility model.

[0025] Figure 3 It is a schematic structural diagram of the heating pad of a speed-controlled and temperature-controlled blood transfusion device of the present utility model.

[0026] Figure 4 It is a schematic structural diagram of the blood transfusion tube clamping member of a speed-controlled and temperature-controlled blood transfusion device of the present utility model.

[0027] Reference Signs:

[0028] 1. Frame, 2. Rotating disk, 3. Notch, 4. Cross beam, 5. Allen bolt, 6. Blood transfusion tube, 7. Temperature measuring sensor, 8. Blood transfusion tube clamping member, 9. Peristaltic blood delivery structure, 10. Heating pad;

[0029] 801. Pressing plate, 802. Plug pin, 803. Hinge rod, 804. Movable pressing block, 805. Fixed pressing block, 806. Telescopic spring, 807. Positioning pin seat;

[0030] 901. Motor, 902. Output shaft, 903. Rotating frame, 904. Rotating wheel. Detailed Description of the Embodiments

[0031] The preferred embodiments of the present utility model will be specifically described below in conjunction with the accompanying drawings. The accompanying drawings form a part of the present utility model and are used together with the embodiments of the present utility model to illustrate the principles of the present utility model.

[0032] This embodiment provides a speed-controlled and temperature-raising blood transfusion device. As Figure 1 and Figure 3 shown, it includes a frame 1, a blood transfusion tube 6, a temperature sensor 7, a blood transfusion tube clamping member 8, a peristaltic blood delivery member 9, and a heating pad 10. The blood transfusion tube 6 is installed on the side wall of the semi-circular groove of the frame 1. The peristaltic blood delivery member 9 is installed on the frame 1. The peristaltic blood delivery member 9 cooperates with the side wall of the semi-circular groove to be able to squeeze the blood transfusion tube 6, so that the two sides inside the blood transfusion tube 6 at the squeezed part are in a non-connected state. The heating pad 10 is installed on the groove wall of the semi-circular groove. The temperature sensor 7 for detecting the output side of the blood transfusion tube 6 is installed on the frame 1, and the blood transfusion tube clamping member 8 for fixing the output side and the input side of the blood transfusion tube 6 is provided on the frame 1.

[0033] The cooperation between the heating pad 10 on the semi-circular groove of the frame 1 and the peristaltic blood delivery member 9 realizes the delivery of blood. The heating pad 10 heats the blood in the blood transfusion tube 6. The blood transfusion tube clamping member 8 fixes the input side and the output side of the blood transfusion tube 6. The temperature sensor 7 is used to measure the temperature of the output side of the blood transfusion tube 6 to facilitate adjusting the heating power of the heating pad 10.

[0034] Preferably, as Figure 4 shown, the blood transfusion tube clamping member 8 includes a pressing plate 801, a hinge rod 803, a movable pressing block 804, a fixed pressing block 805, a telescopic spring 806, and a positioning component. The telescopic spring 806 is fixed with the pressing plate 801 at the upper end. One end of the hinge rod 803 is respectively hinged on both sides of the pressing plate 801. The other end of the hinge rod 803 is hinged with the movable pressing block 804. A slide rail is fixed on the frame 1. The movable pressing block 804 is slidably connected to the slide rail, and the cooperation between the movable pressing block 804 and the fixed pressing block 805 fixed on the frame 1 can realize the fixation of the blood transfusion tube 6. The positioning component is installed on the pressing plate 801.

[0035] When pressing down the pressing plate 801, the pressing plate 801 drives one end of the hinge rod 803 to move downward. The other end of the hinge rod 803 slides to both sides under the action of the slide rail, and then drives the movable pressing block 804 to move to both sides. The cooperation between the movable pressing block 804 and the fixed pressing block 805 fixes the input side and the output side of the blood transfusion tube 6, and then the position of the movable pressing block 804 is fixed through the positioning component.

[0036] Preferably, as Figure 2As shown, the peristaltic blood delivery member 9 includes a motor 901, an output shaft 902, a rotating frame 903, and a rotating wheel 904; the output shaft 902 is installed on the motor 901, a pair of rotating frames 903 are installed on the output shaft 902, and at least two uniformly distributed rotating wheels 904 are installed between the rotating frames 903.

[0037] The motor 901 drives the output shaft 902 to rotate, the output shaft 902 then drives the rotating frame 903 to rotate, and the rotating frame 903 drives the rotating wheel 904 to revolve around the output shaft 902 while squeezing the blood delivery tube 6 to rotate itself.

[0038] Preferably, a rotating disk 2 is installed on the peristaltic blood delivery member 9, and a notch 3 is formed on the rotating disk 2.

[0039] The blood delivery tube 6 is placed on the notch 3 of the blood delivery tube 6. When the rotating disk 2 rotates forward, it will drive the notch 3 to rotate, and press the blood delivery tube 6 on the upper surface of the rotating disk 2 into the lower surface of the rotating disk 2 to realize the installation of the blood delivery tube 6.

[0040] The blood delivery tube 6 is placed on the notch 3 of the blood delivery tube 6. When the rotating disk 2 rotates in the reverse direction, it will drive the notch 3 to rotate, and pull the blood delivery tube 6 on the lower surface of the rotating disk 2 to the upper surface of the rotating disk 2 to realize the disassembly of the blood delivery tube 6.

[0041] Preferably, the positioning assembly includes a plug pin 802 and a positioning pin seat 807; the plug pin 802 is slidably connected inside the pressing plate 801, and the plug pin 802 can be inserted into the positioning pin seat 807 fixed on the frame 1.

[0042] Preferably, rubber friction particles are provided on the inner sides of the movable pressing block 804 and the fixed pressing block 805.

[0043] Preferably, a cross beam 4 is fixed on the surface of the rotating disk 2, and the cross beam 4 can drive the rotating disk 2 to rotate.

[0044] Preferably, the peristaltic blood delivery member 9 and the rotating disk 2 are fixed by an internal hexagonal bolt 5.

[0045] Preferably, the number of the rotating wheels 904 is four.

[0046] Preferably, a circular groove is formed on the frame 1, and one end of the telescopic spring 806 is fixed on the groove wall of the circular groove.

[0047] The above is only a preferred specific embodiment of the present invention, but the protection scope of the present invention is not limited thereto. Any changes or substitutions that can be easily thought of by those skilled in the art within the technical scope disclosed by the present invention should be covered by the protection scope of the present invention.

Claims

1. A speed-controlled and temperature-raising blood transfusion device, characterized in that, It includes a frame (1), a blood transfusion tube (6), a temperature measuring sensor (7), a blood transfusion tube clamping member (8), a peristaltic blood delivery member (9) and a heating pad (10); the blood transfusion tube (6) is installed on the side wall of the semi-circular groove of the frame (1), the peristaltic blood delivery member (9) is installed on the frame (1), and the peristaltic blood delivery member (9) can cooperate with the side wall of the semi-circular groove to squeeze the blood transfusion tube (6), so that the two sides inside the blood transfusion tube (6) at the squeezed part are in a non-connected state. The heating pad (10) is installed on the groove wall of the semi-circular groove, the temperature measuring sensor (7) for detecting the output side of the blood transfusion tube (6) is installed on the frame (1), and the blood transfusion tube clamping member (8) for fixing the output side and the input side of the blood transfusion tube (6) is provided on the frame (1).

2. The speed-controlled and temperature-raising blood transfusion device according to claim 1, wherein The blood transfusion tube clamping member (8) includes a pressing plate (801), a hinged rod (803), a movable pressing block (804), a fixed pressing block (805), a telescopic spring (806) and a positioning component; the pressing plate (801) is fixed at the upper end of the telescopic spring (806), one end of the hinged rod (803) is respectively hinged on both sides of the pressing plate (801), the other end of the hinged rod (803) is hinged to the movable pressing block (804), a slide rail is fixed on the frame (1), the movable pressing block (804) is slidably connected to the slide rail, and the movable pressing block (804) can cooperate with the fixed pressing block (805) fixed on the frame (1) to fix the blood transfusion tube (6), and the positioning component is installed on the pressing plate (801).

3. The speed-controlled and temperature-raising blood transfusion device according to claim 1, wherein, The peristaltic blood delivery member (9) includes a motor (901), an output shaft (902), a rotating frame (903) and a rotating wheel (904); the output shaft (902) is installed on the motor (901), a pair of rotating frames (903) are installed on the output shaft (902), and at least 2 evenly distributed rotating wheels (904) are installed between the rotating frames (903).

4. The speed-controlled and temperature-raising blood transfusion device according to claim 3, wherein, A rotating disk (2) is installed on the peristaltic blood delivery member (9), and a notch (3) is opened on the rotating disk (2).

5. The speed-controlled and temperature-raising blood transfusion device according to claim 2, wherein The positioning component includes a plug pin (802) and a positioning pin seat (807); the plug pin (802) is slidably connected inside the pressing plate (801), and the plug pin (802) can be inserted into the positioning pin seat (807) fixed on the frame (1).

6. The speed-controlled and temperature-raising blood transfusion device according to claim 2, wherein Rubber friction particles are provided on the inner sides of the movable pressing block (804) and the fixed pressing block (805).

7. The speed-controlled and temperature-raising blood transfusion device according to claim 4, characterized in that, A cross beam (4) is fixed on the surface of the rotating disk (2), and the cross beam (4) can drive the rotating disk (2) to rotate.

8. The speed-controlled and temperature-raising blood transfusion device according to claim 7, wherein, The peristaltic blood delivery member (9) and the rotating disk (2) are fixed by an internal hexagonal bolt (5).

9. The speed-controlled and temperature-raising blood transfusion instrument according to claim 3, characterized in that, The number of the rotating wheels (904) is 4.

10. The speed-controlled and temperature-raising blood transfusion device according to claim 2, characterized in that, A circular groove is opened on the frame (1), and one end of the telescopic spring (806) is fixed on the groove wall of the circular groove.

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