Isolated heart transfer box and use method thereof
By combining a separate outer and inner box design with flexible and fixing mechanisms, the shortcomings of cardiac transport boxes in terms of fixation and temperature regulation are solved, enabling rapid operation and multi-angle adaptation, thus improving the safety and success rate of cardiac transport.
Patent Information
- Application Number
- CN202511255435.5
- Authority / Receiving Office
- CN · China
- Patent Type
- Applications(China)
- Current Assignee / Owner
- Filing Date
- 2025-09-04
- Publication Date
- 2025-12-02
AI Technical Summary
Existing cardiac transport boxes have shortcomings in terms of fixation and temperature regulation, resulting in long heart exposure time, poor size adaptability, and high risk of mechanical damage, which affect organ viability and transplant success rate.
It adopts a separate outer and inner casing design. The inner casing is equipped with a flexible mechanism and a fixing mechanism. Combined with the temperature control module, the core is fixed by mechanical clamping and flexible wrapping. The drive motor and linkage mechanism are used to adapt to different sizes, ensuring temperature uniformity and rapid operation.
It reduces the time the heart is exposed to the external environment, improves placement and retrieval efficiency, enhances the safety of heart transportation, adapts to different heart container shapes, prevents mechanical damage, and ensures heart viability and transplant success rate.
Smart Images

Figure CN121040449A_ABST
Abstract
Description
Technical Field
[0001] This invention relates to the field of organ transport technology, specifically to an ex vivo heart transport box and its usage method. Background Technology
[0002] An ex vivo heart transport box is a medical device specifically designed for heart transplant surgery. It is used to provide a constant temperature, shockproof, sterile and physiologically stable preservation space for the ex vivo heart during transportation after the donor heart is removed and before transplantation. Its core goal is to maximize the survival time of the heart outside the body, ensure organ viability, and improve the success rate of transplantation.
[0003] To improve the stability of transporting heart organs, some existing transport boxes have been designed with cumbersome fixed and opening structures. This may result in the organ being exposed to the external environment for a long time during transport, which may affect the organ's viability. In addition, some transport boxes use mechanical clamps or linkage arm structures to fix the organ, but they lack compatibility with different sizes of heart containers and have slow adjustment speeds, which may affect the efficiency of organ handling and placement, and may cause secondary damage to the heart, affecting the normal use of the heart organ. Summary of the Invention
[0004] The purpose of this invention is to provide an ex vivo heart transport box and its method of use, so as to solve the problems mentioned in the background art.
[0005] To achieve the above objectives, the present invention adopts the following technical solution: an ex vivo heart transport box, including an outer box, a set of elastic mechanisms at the bottom of the outer box, an inner box connected to the top of the elastic mechanisms, a set of temperature regulating modules at both the left and right ends of the inner box, and a set of fixing mechanisms connected to the middle of the inner box.
[0006] The elastic mechanism includes a movable box, a set of movable through slots at the rear middle of the movable box, a set of movable blocks at the top of the movable box, the bottom middle of the movable blocks being connected to the bottom middle of the movable box by a spring, a movable groove at the front middle of the movable blocks, the front bottom of the movable box being connected to the movable groove by a limiting plate, and a set of push rods at the top middle of the movable blocks, the top of the push rods extending through to the top of the movable box.
[0007] By adopting the above technical solution, the separate design of the outer and inner boxes achieves "dual protection." The outer box can resist external impacts, while the inner box can further isolate residual vibrations. The fixing mechanism is located in the middle of the inner box, which can accommodate heart containers of different sizes. The heart is fixed by mechanical clamping combined with flexible wrapping to prevent mechanical damage caused by shaking during transportation. Two sets of temperature-regulating modules are symmetrically arranged in the inner box, which can quickly adjust the temperature inside the inner box to the range required for heart preservation. The dual modules work together to ensure temperature uniformity and avoid damage to the organ caused by local temperature differences. At the same time, the elastic mechanism adopts a linkage structure of spring, moving block and limiting plate. When it is necessary to pick up or place the heart, the inner box can be pressed and the elastic mechanism can quickly pop out the inner box, which facilitates the rapid placement of the heart, reduces the exposure time of the heart to the external environment, and ensures the viability and safety of the heart.
[0008] Preferably, the movable block has a set of back plates at the rear middle, the rear end of the back plates extends to the rear end of the movable box through the first movable slot and has a second movable slot. The rear end of the movable box has a set of connecting plates at the left and right middle positions corresponding to the first movable slot. The rear ends of the two sets of connecting plates have a set of locking members at their opposite rear ends. The bottom front end of the locking member is connected to the second movable slot through a movable rod.
[0009] By adopting the above technical solution, the back plate slides along the first movable slot, which avoids the lateral displacement of the moving block and improves the stability of the moving block when it moves in the vertical direction. When the back plate moves down, it can guide the moving rod to move through the second movable slot, thereby driving the locking component to rotate, which facilitates the connection and fixation with the inner box and locks the inner box.
[0010] Preferably, a set of limiting rods is connected to the rear top of the limiting plate, and the rear end of the limiting rods extends into the movable groove.
[0011] By adopting the above technical solution, the limiting rod can move within the movable slot, thereby limiting the movement path of the moving block.
[0012] Preferably, the bottom rear end of the inner box is provided with a locking plate corresponding to the locking element.
[0013] By adopting the above technical solution, it is easy to cooperate with the locking component to lock the inner box that has been pushed into the outer box.
[0014] Preferably, the fixing mechanism includes a fixing rod, a rotating sleeve, a linkage mechanism, a turbine, a worm gear, and a drive motor. A set of fixing rods is connected to the bottom of the inner box. A set of rotating sleeves is provided on the outside of the fixing rods. The top ends of the fixing rods and rotating sleeves are connected to the linkage mechanism. A set of turbines is provided on the outside of the rotating sleeves. A set of worm gears is connected to the outer end of the turbines. The rear end of the worm gears is connected to the drive motor.
[0015] By adopting the above technical solution, the drive motor drives the worm gear to rotate, which in turn drives the turbine to move, thereby controlling the rotation of the rotating sleeve. The rotating sleeve can rotate along the fixed rod, adjusting the opening and closing degree of the linkage mechanism. It can be adapted to heart containers of different sizes. Furthermore, due to the self-locking characteristics of the worm gear structure, it can prevent the structure from loosening due to vibration or external force, ensuring the fixed clamping of the heart.
[0016] Preferably, the linkage mechanism includes linkage arm one, linkage arm two, linkage arm three, linkage arm four, and a buffer pad layer. At least two sets of linkage arm one are provided at equal intervals at the top of the fixed rod, and at least two sets of linkage arm two are provided at equal intervals on the top surface of the rotating sleeve. A set of linkage arm three is connected to the top of each linkage arm one and linkage arm two. A set of linkage arm four is provided at the other end of each linkage arm three. The other ends of two adjacent sets of linkage arm four are connected to each other. A buffer pad layer is provided at the connection points of linkage arm one and linkage arm two with linkage arm three, the connection points of linkage arm two with linkage arm three, and the connection points of the two sets of linkage arm four.
[0017] By adopting the above technical solution and using a multi-arm hinge and buffer pad design, a rigid fixation method combined with flexible clamping is achieved. This method can meet the adaptive wrapping fixation of the heart container. The linkage structure of linkage arm one, linkage arm two, linkage arm three and linkage arm four can form a synchronous opening and closing action, making the clamping range adjustable. It is suitable for round, elliptical or irregular heart containers. Moreover, the ends of linkage arm four are interconnected to form a closed loop structure, ensuring uniform distribution of clamping force and avoiding excessive local pressure. The buffer pad can absorb high-frequency micro-vibrations during transportation, while preventing indentations or punctures that may be caused by rigid clamping to the heart container, thus ensuring the safety of the heart container.
[0018] Preferably, the first, second, third and fourth linkage arms are all arc-shaped plates.
[0019] By adopting the above technical solution, it is easier to clamp the heart container.
[0020] Preferably, the linkage arms are arranged in a three-way cross pattern and hinged at the middle.
[0021] Preferably, the locking plate is "L" shaped, the locking element is "]" shaped, and when the inner box is retracted into the outer box, the top end of the locking element can contact the bottom end of the locking plate.
[0022] This invention provides a method for using an ex vivo heart transport box, comprising the following steps:
[0023] S1: Press the inner box, and the elastic mechanism will cause the top of the inner box to pop out into the outer box, and then pull the inner box out to the outside of the outer box.
[0024] S2: Open the inner box and place the container containing the heart on the top of the fixing rod;
[0025] S3: Drives the drive motor, which in turn drives the linkage mechanism through a worm gear, worm shaft and rotating sleeve;
[0026] S4: The linkage mechanism clamps and fixes the container containing the heart, and adjusts the internal temperature of the inner box through the temperature control module;
[0027] S5: Close the inner box, push the inner box back into the outer box, and lock the inner box through the elastic mechanism.
[0028] Compared with the prior art, the beneficial effects of the present invention are:
[0029] 1. This invention utilizes an elastic mechanism located at the bottom of the outer casing, with its top end in contact with the inner casing. The elastic mechanism includes components such as a movable box, a moving block, a spring, a movable groove, a limiting plate, and a top rod. When these components work together, the inner casing can be locked or released by pressing it down and by the locking mechanism at the rear end of the moving block connecting with the locking plate at the rear end of the inner casing. This allows for quick locking or ejection of the inner casing, improving the efficiency of placing and retrieving the heart, reducing the heart's exposure time to the external environment, and thus protecting the heart.
[0030] 2. The present invention uses a fixing mechanism set in the middle of the inner box. The fixing mechanism includes a fixing rod, a rotating sleeve, a linkage mechanism, a turbine, a worm gear and a drive motor. When they cooperate with each other, the drive motor can drive the turbine and worm gear to rotate, thereby driving the rotating sleeve to rotate around the fixing rod. This can drive the linkage mechanism to move, so that the linkage mechanism can clamp and fix the container containing the heart, thereby improving the safety of the heart during transportation.
[0031] 3. The present invention utilizes a linkage mechanism located at the top of the fixed rod and the rotating sleeve. The linkage mechanism includes components such as linkage arm one, linkage arm two, linkage arm three, linkage arm four, and a buffer pad. The linkage arms one, two, three, and four cooperate with each other to achieve dynamic adjustment at multiple angles, adapting to container shapes of different sizes, effectively expanding the scope of application. Combined with the buffer pad, it forms a rigid locking and flexible contact effect, which can prevent mechanical damage to the container and improve the protection effect on the heart. Attached Figure Description
[0032] Figure 1 This is a schematic diagram of the internal structure of the present invention;
[0033] Figure 2 This is a schematic diagram of the elastic mechanism structure of the present invention;
[0034] Figure 3 for Figure 2 Enlarged structural diagram at point A in the middle;
[0035] Figure 4This is a rear view schematic diagram of the elastic mechanism of the present invention;
[0036] Figure 5 This is a schematic diagram of the rear end structure of the moving block of the present invention;
[0037] Figure 6 This is a front view schematic diagram of the fixing mechanism of the present invention;
[0038] Figure 7 This is a front view structural diagram of the linkage mechanism of the present invention;
[0039] Figure 8 This is a schematic diagram of the linkage mechanism of the present invention.
[0040] In the diagram: Outer casing-1, elastic mechanism-2, inner casing-3, temperature control module-4, fixing mechanism-5, movable box-21, moving block-22, spring-23, movable groove-24, limiting plate-25, top rod-26, movable through groove one-211, back plate-221, movable through groove two-222, connecting plate-223, locking component-224, moving rod-225, limiting rod-251, locking plate-31, fixing rod-51, rotating sleeve-52, linkage mechanism-53, turbine-54, worm gear-55, drive motor-56, linkage arm one-531, linkage arm two-532, linkage arm three-533, linkage arm four-534, buffer pad-535. Detailed Implementation
[0041] To further explain the technical solution of the present invention, a detailed description is provided below through specific embodiments.
[0042] Please see Figures 1-3This invention provides an ex vivo heart transport box, comprising an outer box 1, an elastic mechanism 2 installed at the bottom of the inner side of the outer box 1, the top of the elastic mechanism 2 being able to contact an inner box 3, the inner box 3 being slidably connected to the outer box 1 and being able to slide within the outer box 1, and a set of temperature regulating modules 4 installed at both the left and right ends of the inner box 3, and a set of fixing mechanisms 5 connected to the middle of the inner side, wherein the elastic mechanism 2 includes a movable box 21, a set of movable through grooves 211 being opened at the rear middle of the movable box 21, a set of moving blocks 22 being slidably connected to the top of the movable box 21, and the bottom middle of the moving blocks 22 being connected to the bottom middle of the movable box 21 by a spring 23. When the movable block 22 moves down along the movable box 21, it compresses the spring 23. The front middle end of the movable block 22 has a heart-shaped movable groove 24. The front bottom end of the movable box 21 is connected to the movable groove 24 through a limiting plate 25. A set of limiting rods 251 are rotatably connected to the rear top end of the limiting plate 25. The rear end of the limiting rods 251 extends into the movable groove 24. The limiting rods 251 can move within the movable groove 24, thereby restricting the movement path of the movable block 22. A set of top rods 26 are fixedly connected to the top middle end of the movable block 22. The top end of the top rods 26 extends through to the top end of the movable box 21 and can contact the bottom surface of the inner box 3.
[0043] Specifically, the separate design of the outer box 1 and the inner box 3 achieves "dual protection." The outer box 1 can resist external collisions, while the inner box 3 can further isolate residual vibrations. The fixing mechanism 5 is located in the middle of the inner box 3, which can adapt to heart containers of different sizes. It fixes the heart by mechanical clamping combined with flexible wrapping to prevent mechanical damage caused by shaking during transportation. Two sets of temperature-regulating modules 4 are symmetrically arranged inside the inner box 3, which can quickly adjust the temperature inside the inner box 3 to the range required for heart preservation. The dual modules work together to ensure temperature uniformity and avoid damage to the organ caused by local temperature differences. At the same time, the elastic mechanism 2 adopts a linkage structure of spring 23, moving block 22 and limiting plate 25. When it is necessary to pick up or place the heart, the elastic mechanism 2 can quickly pop out the inner box 3 by pressing the inner box 3, which facilitates the rapid placement of the heart, reduces the exposure time of the heart to the external environment, and ensures the viability and safety of the heart.
[0044] Please see Figures 2-5A set of back plates 221 is fixedly connected to the middle of the rear of the movable block 22. The rear end of the back plate 221 extends to the rear end of the movable box 21 through the first movable slot 211 and has a set of cross-shaped movable slots 222. A set of connecting plates 223 are fixedly connected to the middle of the left and right sides of the rear end of the movable box 21, corresponding to the middle of the first movable slot 211. A set of locking members 224 are hinged to the rear ends of the opposite sides of the two sets of connecting plates 223. The bottom front end of the locking member 224 is connected to the second movable slot 222 through the moving rod 225. Inclined slots are opened on both the left and right sides of the second movable slot 222. The two ends of the moving rod 225 extend into the two sets of through slots respectively. When the moving block 22 drives the back plate 221 to move down, the locking member 224 can be rotated through the cooperation of the through slot and the moving rod 225. The bottom rear end of the inner box 3 is fixedly connected to a set of "L"-shaped locking plates 31 corresponding to the locking member 224. The locking member 224 is similar to "]". When the inner box 3 is retracted into the outer box 1, the top end of the locking member 224 can contact the bottom end of the locking plate 31. The locking member 224 can interlock with the locking plate 31, which can lock the inner box 3 pushed into the outer box 1.
[0045] Specifically, the back plate 221 slides along the first movable through slot 211 to prevent the moving block 22 from shifting laterally and improve the stability of the moving block 22 when it moves vertically. When the back plate 221 moves down, it can guide the moving rod 225 to move through the second movable through slot 222, which will drive the locking member 224 to rotate, so as to facilitate the connection and fixation with the inner box 3 and lock the inner box 3.
[0046] Please see Figures 6-8 The fixing mechanism 5 includes a fixing rod 51, a rotating sleeve 52, a linkage mechanism 53, a turbine 54, a worm gear 55, and a drive motor 56. A set of fixing rods 51 is fixedly connected to the bottom of the inner box 3. A set of rotating sleeves 52 is sleeved on the outside of the fixing rods 51. The rotating sleeves 52 can rotate around the fixing rods 51. The top ends of the fixing rods 51 and the rotating sleeves 52 are connected to the linkage mechanism 53. A set of turbines 54 is fixedly connected to the outside of the rotating sleeves 52. A set of worm gears 55 is connected to the outer end of the turbines 54. The rear end of the worm gears 55 is fixedly connected to the drive shaft of the drive motor 56. The worm gears 55 and the turbines 54 mesh. After the drive motor 56 drives the worm gears 55 to rotate, the rotating sleeves 52 can be driven to rotate through the turbines 54.
[0047] Specifically, the drive motor 56 drives the worm gear 55 to rotate, which in turn drives the turbine 54 to move, thereby controlling the rotation of the rotating sleeve 52. The rotating sleeve 52 can rotate along the fixed rod 51 to adjust the opening and closing degree of the linkage mechanism 53, which can be adapted to heart containers of different sizes. Furthermore, due to the self-locking characteristics of the worm gear structure, it can prevent the structure from loosening due to vibration or external force, ensuring the fixed clamping of the heart.
[0048] Please see Figures 6-8The linkage mechanism 53 includes linkage arm 1 531, linkage arm 2 532, linkage arm 3 533, linkage arm 4 534, and a buffer pad 535. Linkage arms 1 531, 2 532, 3 533, and 4 534 are all arc-shaped plates to facilitate clamping of the heart container. At least two sets of linkage arms 1 531 are fixedly connected at equal intervals at the top of the fixing rod 51. At least two sets of linkage arms 2 532 are fixedly connected at equal intervals on the top surface of the rotating sleeve 52. Linkage arms 2 532 are located below linkage arms 1 531. Linkage arms 1 531 and... Each of the two linkage arms 532 has a set of three linkage arms 533 hinged to its top end. The three linkage arms 533 are arranged in a cross pattern and are hinged at the middle to improve stability. Each of the two linkage arms 533 has a set of four linkage arms 534 hinged to its other end. The other ends of two adjacent sets of four linkage arms 534 are hinged to each other. Buffer pads 535 are installed at the connection points of the two linkage arms 531 and the two linkage arms 532 with the three linkage arms 533, the connection points of the two linkage arms 532 with the three linkage arms 533, and the connection points of the two sets of four linkage arms 534. These pads can flexibly wrap the container and improve the protection effect.
[0049] Specifically, the design using multi-arm hinges and a buffer pad 535 achieves a rigid fixation method combined with flexible clamping, which can meet the adaptive wrapping fixation of the heart container. The linkage structure of linkage arm 1 531, linkage arm 2 532, linkage arm 3 533 and linkage arm 4 534 can form a synchronous opening and closing action, making the clamping range adjustable and suitable for round, elliptical or irregular heart containers. The ends of linkage arm 4 534 are interconnected to form a closed-loop structure, ensuring uniform distribution of clamping force and avoiding excessive local pressure. The buffer pad 535 can absorb high-frequency micro-vibrations during transportation, while preventing indentations or punctures that may be caused by rigid clamping to the heart container, ensuring the safety of the heart container.
[0050] This invention provides a method for using an ex vivo heart transport box, comprising the following steps:
[0051] S1: Press the inner box 3, the bottom surface of the inner box 3 contacts the top of the top rod 26 and presses it down synchronously with the moving block 22, and compresses the spring 23. The limiting rod 251 moves from the top middle of the movable groove 24 to the left or right end of the top surface. At this time, the spring 23 releases its elastic force and pushes the moving block 22 upward. The limiting rod 251 moves along the left or right end of the movable groove 24 to the bottom end of the movable groove 24. The moving block 22 drives the top rod 26 to push the inner box 3 upward, so that the top of the inner box 3 pops out into the outer box 1. Then the inner box 3 is pulled out to the outside of the outer box 1.
[0052] S2: Open the inner box 3 and place the container containing the heart on the top of the fixing rod 51;
[0053] S3: Start the drive motor 56. The drive motor 56 drives the turbine 54 to rotate through the worm gear 55. The turbine 54 drives the rotating sleeve 52 to rotate, so that the rotating sleeve 52 rotates around the fixed rod 51, so that the second linkage arm 532 moves to the middle position of the two sets of first linkage arms 531, thereby driving the third linkage arm 533 and the fourth linkage arm 534 to move together.
[0054] S4: The linkage mechanism 53 clamps and fixes the container containing the heart through the inner buffer pad 535, and adjusts the internal temperature of the inner box 3 through the temperature control module 4.
[0055] S5: Close the inner box 3 and push the inner box 3 back into the outer box 1. The bottom of the inner box 3 presses down the top rod 26 and the moving block 22 again, so that the limit rod 251 returns to the top middle of the movable groove 24. During the downward movement of the moving block 22, the moving rod 225 and the locking member 224 are rotated through the through grooves on both sides of the movable through groove 222, so that the top of the locking member 224 locks the bottom of the locking plate 31, thereby locking the inner box 3.
[0056] This invention provides an ex vivo heart transport box and its usage method. The invention utilizes an elastic mechanism 2 located at the bottom of the outer box 1, with its top end contacting the inner box 3. The elastic mechanism 2 includes components such as a movable box 21, a moving block 22, a spring 23, a movable groove 24, a limiting plate 25, and a push rod 26. These components work together to lock or release the inner box 3 by pressing it, through the locking mechanism 224 at the rear end of the moving block 22 and the locking plate 31 at the rear end of the inner box 3. This allows for rapid locking or ejection of the inner box 3, improving the efficiency of heart placement and retrieval, reducing the heart's exposure time to the external environment, and thus protecting the heart. A fixing mechanism 5 located in the middle of the inner box 3 includes components such as a fixing rod 51, a rotating sleeve 52, a linkage mechanism 53, a turbine 54, a worm gear 55, and a drive motor 56. These components work together to drive the transport box. The motor 56 drives the turbine 54 and worm gear 55 to rotate, thereby causing the rotating sleeve 52 to rotate around the fixed rod 51. This drives the linkage mechanism 53 to move, allowing the linkage mechanism 53 to clamp and fix the container containing the heart, improving the safety of the heart during transportation. The linkage mechanism 53, located at the top of the fixed rod 51 and the rotating sleeve 52, includes components such as linkage arm 1 531, linkage arm 2 532, linkage arm 3 533, linkage arm 4 534, and a buffer pad 535. The linkage arms 1 531, linkage arm 2 532, linkage arm 3 533, and linkage arm 4 534 can achieve multi-angle dynamic adjustment in cooperation, adapting to the shape of containers of different sizes, effectively expanding the scope of application. Combined with the buffer pad 535, it forms a rigid locking and flexible contact effect, which can prevent mechanical damage to the container and improve the protection of the heart.
[0057] The above description is merely a preferred embodiment of the present invention and is not intended to limit the present invention. Although the present invention has been described in detail with reference to the foregoing embodiments, those skilled in the art can still modify the technical solutions described in the foregoing embodiments or make equivalent substitutions for some of the technical features. Any modifications, equivalent substitutions, improvements, etc., made within the spirit and principles of the present invention should be included within the protection scope of the present invention.
Claims
1. An ex vivo heart transport box, characterized in that: Includes an outer box (1), the bottom of the outer box (1) is provided with a set of elastic mechanisms (2), the top of the elastic mechanism (2) is connected to a set of inner boxes (3), the left and right ends of the inner boxes (3) are provided with a set of temperature regulating modules (4), and the middle end of the inner box is connected to a set of fixing mechanisms (5). The elastic mechanism (2) includes a movable box (21), a set of movable through grooves (211) is provided at the rear middle of the movable box (21), a set of movable blocks (22) is provided at the top of the movable box (21), the bottom middle of the movable block (22) is connected to the bottom middle of the movable box (21) by a spring (23), the front middle of the movable block (22) is provided with a movable groove (24), the front bottom of the movable box (21) is connected to the movable groove (24) by a limiting plate (25), and a set of push rods (26) is provided at the top middle of the movable block (22), the top of the push rods (26) extends through to the top of the movable box (21).
2. The ex vivo heart transport box according to claim 1, characterized in that: The movable block (22) is provided with a set of back plates (221) at the rear middle. The rear end of the back plate (221) extends to the rear end of the movable box (21) through the first movable slot (211) and is provided with the second movable slot (222). The rear end of the movable box (21) is provided with a set of connecting plates (223) at the left and right middle positions corresponding to the first movable slot (211). The rear ends of the two sets of connecting plates (223) are provided with a set of locking members (224). The bottom front end of the locking member (224) is connected to the second movable slot (222) through the movable rod (225).
3. The ex vivo heart transport box according to claim 1, characterized in that: The rear top of the limiting plate (25) is connected to a set of limiting rods (251), and the rear end of the limiting rods (251) extends into the movable groove (24).
4. The ex vivo heart transport box according to claim 2, characterized in that: The inner box (3) has a locking plate (31) at the rear bottom end corresponding to the locking element (224).
5. The ex vivo heart transport box according to claim 1, characterized in that: The fixing mechanism (5) includes a fixing rod (51), a rotating sleeve (52), a linkage mechanism (53), a turbine (54), a worm gear (55), and a drive motor (56). A set of fixing rods (51) is connected to the bottom of the inner box (3). A set of rotating sleeves (52) is provided on the outside of the fixing rods (51). The top ends of the fixing rods (51) and the rotating sleeves (52) are connected to the linkage mechanism (53). A set of turbines (54) is provided on the outside of the rotating sleeves (52). A set of worm gears (55) is connected to the outer end of the turbines (54). The rear end of the worm gears (55) is connected to the drive motor (56).
6. The ex vivo heart transport box according to claim 5, characterized in that: The linkage mechanism (53) includes a first linkage arm (531), a second linkage arm (532), a third linkage arm (533), a fourth linkage arm (534), and a buffer pad (535). The top of the fixed rod (51) is provided with at least two sets of first linkage arms (531) at equal intervals, and the top surface of the rotating sleeve (52) is provided with at least two sets of second linkage arms (532) at equal intervals. The tops of both the first linkage arm (531) and the second linkage arm (532) are connected... A set of linkage arm three (533) is connected. The other end of each linkage arm three (533) is provided with a set of linkage arm four (534). The other ends of two adjacent sets of linkage arm four (534) are connected to each other. The connection points of linkage arm one (531) and linkage arm two (532) with linkage arm three (533), the connection points of linkage arm two (532) with linkage arm three (533), and the connection points of the two sets of linkage arm four (534) are all provided with buffer pads (535).
7. The ex vivo heart transport box according to claim 6, characterized in that: The first linkage arm (531), the second linkage arm (532), the third linkage arm (533), and the fourth linkage arm (534) are all arc-shaped plates.
8. The ex vivo heart transport box according to claim 7, characterized in that: The three linkage arms (533) are arranged in a cross pattern and are hinged at the middle.
9. The ex vivo heart transport box according to claim 4, characterized in that: The locking plate (31) is "L" shaped, and the locking element (224) is "]" shaped. When the inner box (3) is returned to the outer box (1), the top of the locking element (224) can contact the bottom of the locking plate (31).
10. A method of using an ex vivo heart transport box, applied to the ex vivo heart transport box described in any one of claims 1-9, characterized in that: Includes the following steps: S1: Press the inner box (3), the elastic mechanism (2) can make the top of the inner box (3) pop out into the outer box (1), and then pull the inner box (3) out to the outside of the outer box (1); S2: Open the inner box (3) and place the container containing the heart on the top of the fixing rod (51); S3: Drive the drive motor (56), which drives the linkage mechanism (53) through the turbine (54), worm (55) and rotating sleeve (52); S4: The linkage mechanism (53) clamps and fixes the container containing the heart, and adjusts the internal temperature of the inner box (3) through the temperature adjustment module (4); S5: Close the inner box (3), push the inner box (3) back into the outer box (1), and lock the inner box (3) through the elastic mechanism (2).