Marrow cavity microvessel stimulation stent device

Abstract

The invention relates to a marrow cavity microvessel stimulation stent device which comprises a stent with a movable through hole in the middle. The number of the first connecting pieces is at least two, and the first connecting pieces are arranged on the edge of the support; the movable assembly is arranged in the movable through hole, the movable assembly comprises a first movable plate, a lifting plate and a second movable plate which are connected in sequence, first rotating shafts are arranged between the lifting plate and the first movable plate and between the lifting plate and the second movable plate, a second connecting piece is arranged on the lifting plate, and the second connecting piece is connected with the bone block; the driving assembly is arranged on the bracket; the driving assembly drives the first movable plate and the second movable plate to move in the opposite directions so that the lifting plate can be away from the tibia. The driving assembly drives the first movable plate and the second movable plate to move in the opposite directions so that the lifting plate can get close to the tibia. A rotary connection structure is adopted, the occupied space of the device can be reduced on the premise that the implementation of the medullary cavity microvessel stimulation function is not affected, and the influence on the life and psychology of a patient is reduced.

Description

Technical Field

[0001] The present invention relates to the technical field of lower limb microvascular stimulation surgical devices, and particularly to a bone marrow cavity microvascular stimulation stent device. Background Art

[0002] By applying the Ilizarov biological theory of "tension-stress law", continuous, slow, and stable distraction of biological tissues generates a certain tension, stimulating the regeneration and active growth of tissues such as bones, blood vessels, and skin. This is the theoretical basis for bone transport, nonunion, osteomyelitis, and limb orthopedics. By pulling the bone mass in the calf, a set of microvascular systems are regenerated from the tibial bone marrow cavity and fused with the terminal microvessels, thereby restoring the blood circulation in the lower limbs and controlling and even curing the tissue necrosis caused by vascular occlusion. Among them, patients generally need about 15 days of gradual treatment after setting bone transport. The transverse bone transport will be left in the patient's leg, and the smaller bone transport has less impact on the patient's life and psychology.

[0003] However, the external frames used in existing surgeries are generally split assembly parts. During the surgery, doctors need to assemble each part separately, and the surgical steps are cumbersome. Moreover, the existing transverse bone transport occupies a large space, and the moved bone mass is also large, causing unnecessary harm to patients.

[0004] Therefore, there is a need to provide a bone marrow cavity microvascular stimulation stent device with simple overall assembly, small occupied space, and reduced impact on patients' lives. Summary of the Invention

[0005] In order to overcome the deficiencies of the prior art, the present invention provides a bone marrow cavity microvascular stimulation stent device.

[0006] The technical solution of the present invention is as follows:

[0007] A bone marrow cavity microvascular stimulation stent device for transporting a bone mass located on the tibia, comprising:

[0008] A stent, with a movable through-hole provided in the middle of the stent;

[0009] A first connecting member, which is connected to the tibia. There are at least two first connecting members, and the first connecting members are arranged at the edge of the stent;

[0010] A movable assembly, which is arranged in the movable through-hole. The movable assembly includes a first movable plate, a lifting plate, and a second movable plate connected in sequence. First rotating shafts are provided between the lifting plate and the first movable plate and the second movable plate respectively. A second connecting member is provided on the lifting plate, and the second connecting member is connected to the bone mass;

[0011] A driving component, which is arranged on the bracket;

[0012] The driving component drives the first movable plate and the second movable plate to move towards each other to enable the lifting plate to move away from the tibia;

[0013] The driving component drives the first movable plate and the second movable plate to move away from each other to enable the lifting plate to approach the tibia.

[0014] As a further improvement of the present invention, the driving component includes an adjusting member arranged on the side of the bracket. The adjusting member is connected to a first screw rod and a second screw rod. The threads of the first screw rod and the second screw rod are opposite. A first rotary connection assembly is provided between the first screw rod and the first movable plate, and a second rotary connection assembly is provided between the second screw rod and the second movable plate.

[0015] As a further improvement of the present invention, the first screw rod is arranged at the first end of the adjusting member, and the second screw rod is arranged at the second end of the adjusting member.

[0016] As a further improvement of the present invention, the adjusting member is an adjusting nut provided with internal threads. The first rotary connection assembly includes a second rotating shaft arranged at the end of the first screw rod away from the adjusting nut, and the first movable plate rotates around the second rotating shaft; the second rotary connection assembly includes a third rotating shaft arranged at the end of the second screw rod away from the adjusting nut, and the second movable plate rotates around the third rotating shaft.

[0017] As a further improvement of the present invention, a first through hole is provided at one end of the first movable plate away from the lifting plate, and the second rotating shaft is arranged in the first through hole. A second through hole is provided at one end of the second movable plate away from the lifting plate, and the third rotating shaft is arranged in the second through hole.

[0018] As a further improvement of the present invention, a first movable hole and a second movable hole are provided on one side of the bracket close to the adjusting nut. The second rotating shaft is arranged in the first movable hole, and the third rotating shaft is arranged in the second movable hole.

[0019] As a further improvement of the present invention, a third movable hole and a fourth movable hole are provided on one side of the bracket away from the adjusting nut. The second rotating shaft is arranged in the third movable hole, and the third rotating shaft is arranged in the fourth movable hole.

[0020] As a further improvement of the present invention, the distance between one end of the first movable hole away from the second movable hole and one end of the second movable hole away from the first movable hole is S, and the total length of the first movable plate, the lifting plate, and the second movable plate is L, and S≥L.

[0021] As a further improvement of the present invention, the first movable hole, the second movable hole, the third movable hole, and the fourth movable hole have the same size, the first movable plate and the second movable plate have the same size, and the length of the first movable hole is less than or equal to the length of the first movable plate.

[0022] As a further improvement of the present invention, the bracket is provided with a first threaded hole, the first connecting member is a first screw threadedly connected in the first threaded hole, the lifting plate is provided with a second threaded hole, and the second connecting member is a second screw threadedly connected in the second threaded hole.

[0023] According to the present invention of the above solution, the beneficial effects of the present invention are as follows:

[0024] The present invention adopts a rotational connection structure of a first movable plate, a lifting plate, and a second movable plate to drive the movement of the second screw rod, thereby realizing transverse bone transport. Compared with a conventional linear motion structure, the rotational connection structure can effectively reduce the occupied space of the device and reduce the impact on the patient in terms of life and psychology without affecting the realization of the function of the bone marrow cavity microvascular stimulation bracket. BRIEF DESCRIPTION OF THE DRAWINGS

[0025] Figure 1 is a schematic structural view of the first embodiment of the present invention from the first angle;

[0026] Figure 2 is a schematic structural view of the first embodiment of the present invention from the second angle;

[0027] Figure 3 is a schematic structural view of the first embodiment of the present invention from the third angle;

[0028] Figure 4 is a schematic structural view of the first embodiment of the present invention from the fourth angle;

[0029] Figure 5 is a sectional view of the adjusting nut of the first embodiment of the present invention;

[0030] Figure 6 is a schematic structural view of the second embodiment of the present invention.

[0031] Explanation of the reference numerals in the schematic diagrams:

[0032] 1. Bracket; 11. Movable through hole; 12. First movable hole; 13. Second movable hole; 14. Third movable hole; 15. Fourth movable hole; 2. First movable plate; 3. Lifting plate; 4. Second movable plate; 5. First rotating shaft; 61. Adjusting nut; 62. First screw rod; 63. Second screw rod; 64. Second rotating shaft; 65. Third rotating shaft; 7. First screw; 8. Second screw. Detailed implementation manners

[0033] To further understand the content of the present invention, the present invention will be described in detail in conjunction with the accompanying drawings and embodiments.

[0034] The structures, ratios, sizes, etc. shown in the attached drawings of this specification are only used to cooperate with the content disclosed in the specification for those familiar with this technology to understand and read, and are not used to limit the limiting conditions for the implementation of the present invention. Therefore, they do not have technical essence. Any modification of the structure, change of the proportional relationship or adjustment of the size, without affecting the effects that the present invention can produce and the purposes that can be achieved, should still fall within the scope that can be covered by the technical content disclosed in the present invention. At the same time, terms such as "upper", "lower", "left", "right", "middle", etc. cited in this specification are only for the convenience of clear narration and are not used to limit the scope of implementation. The change or adjustment of their relative relationships, without substantial change in the technical content, should also be regarded as the scope that the present invention can implement.

[0035] See Figures 1-6 , the present invention provides a bone marrow cavity microvascular stimulation stent device for transporting bone blocks located on the tibia, including:

[0036] A stent 1, with a movable through hole 11 provided in the middle of the stent 1. Preferably, the shape of the stent 1 is close to the shape of the human tibia, that is, the stent 1 is overall in a long strip shape;

[0037] A first connecting member, which is connected to the tibia. There are at least two first connecting members, and the first connecting members are arranged on the edge of the stent 1. Two first connecting members are arranged opposite to each other, that is, the two first connecting members are respectively arranged at both ends of the stent 1. The stent 1 is fixed on the tibia through the two first connecting members. Of course, according to specific usage requirements, the number of first connecting members can be increased. For example, first connecting members are added at both ends of the stent 1 so that each end of the stent 1 is provided with two or more first connecting members, or first connecting members are added on the side of the stent 1 so that the side of the stent 1 can also be connected to the tibia, thereby further improving the connection strength between the stent 1 and the tibia;

[0038] A movable component, which is arranged in the movable through hole 11. The movable component includes a first movable plate 2, a lifting plate 3, and a second movable plate 4 connected in sequence. First rotating shafts 5 are provided between the lifting plate 3 and the first movable plate 2 and the second movable plate 4 respectively. A second connecting member is provided on the lifting plate 3, and the second connecting member is connected to the bone block. By providing the first rotating shafts 5 between the first movable plate 2, the second movable plate 4 and the lifting plate 3, the lateral movement of the lifting plate 3 is realized through the rotational connection relationship, thereby driving the second connecting member and the bone block to perform lateral movement;

[0039] A driving component, which is arranged on the stent 1;

[0040] The driving assembly drives the first movable plate 2 and the second movable plate 4 to move in the opposite direction to move the lifting plate 3 away from the tibia, that is, the driving assembly drives the first movable plate 2 and the second movable plate 4 to move towards the lifting plate 3, that is, the first movable plate 2 and the second movable plate 4 simultaneously apply a thrust to the lifting plate 3 from both sides of the lifting plate 3. Under the action of the first rotating shaft 5, the lifting plate 3 moves away from the tibia, thereby realizing the transverse bone transport of the bone mass; on the contrary, the driving assembly drives the first movable plate 2 and the second movable plate 4 to move in the opposite direction to move the lifting plate 3 closer to the tibia, that is, the driving assembly drives the first movable plate 2 and the second movable plate 4 to move in the direction away from the lifting plate 3, that is, the first movable plate 2 and the second movable plate 4 simultaneously apply a pulling force to the lifting plate 3 from both sides of the lifting plate 3. Under the action of the first rotating shaft 5, the lifting plate 3 moves towards the tibia, thereby realizing the restoration and positioning of the bone mass.

[0041] The present invention adopts the rotating connection structure of the first movable plate 2, the lifting plate 3, and the second movable plate 4 to drive the movement of the second connecting member, thereby realizing the transverse bone transport of the bone mass. Compared with the conventional linear motion structure, there is no need to reserve a long motion track and cumbersome motion components on the outer side of the leg. When the bone mass is restored to its original position, the rotating connection structure fits closely to the skin of the leg as a whole, and the appearance of the device is smooth as a whole, which will not cause too much impact on the patient's life. During the process of microvascular stimulation of the bone marrow cavity of the bone mass, only the lifting plate 3 protrudes horizontally from the middle of the device. Since the moving distance is short, the protruding height of the lifting plate 3 is also short. That is, the present invention can effectively reduce the occupied space of the device and reduce the impact on the patient in terms of life and psychology without affecting the realization of the function of the microvascular stimulation stent for the bone marrow cavity.

[0042] As an embodiment of the present invention, the driving assembly includes an adjusting nut member provided on the side of the bracket 1. The adjusting member is connected to the first screw rod 62 and the second screw rod 63. The threads of the first screw rod 62 and the second screw rod 63 are opposite. There is a first rotating connection assembly between the first screw rod 62 and the first movable plate 2, and a second rotating connection assembly between the second screw rod 63 and the second movable plate 4. The positional relationship between the first screw rod 62, the second screw rod 63 and the adjusting member can adopt the following two structures:

[0043] Structure 1: Refer to Figure 4 , the first screw rod 62 is arranged at the first end of the adjusting member, and the second screw rod 63 is arranged at the second end of the adjusting member;

[0044] Structure 2: Refer to Figure 6 , the first ends of the first screw rod 62 and the second screw rod 63 are connected, and the second end of the second screw rod 63 is connected to the adjusting member.

[0045] In addition, the adjusting member can adopt the following two structures:

[0046] Structure 1: The adjusting member is an adjusting nut 61 with internal threads. The first rotary connection assembly is fixedly arranged on the first screw rod 62, and the second rotary connection assembly is fixedly arranged on the second screw rod 63. By rotating the adjusting nut 61, the positions of the first screw rod 62 and the second screw rod 63 are adjusted.

[0047] Structure 2: The adjusting member is an adjusting rod, which rotates synchronously with the first screw rod 62 and the second screw rod 63. The first rotary connection assembly includes a first nut sleeved on the first screw rod 62, and the second rotary connection assembly includes a second nut sleeved on the second screw rod 63.

[0048] In this embodiment, Structure 1 is adopted.

[0049] Meanwhile, the first rotary connection assembly and the second rotary connection assembly can adopt the following two structures:

[0050] Structure 1: Refer to Figure 5 , the first rotary connection assembly includes a second rotating shaft 64 arranged at one end of the first screw rod 62 away from the adjusting nut 61, and the first movable plate 2 rotates around the second rotating shaft 64; the second rotary connection assembly includes a third rotating shaft 65 arranged at one end of the second screw rod 63 away from the adjusting nut 61, and the second movable plate 4 rotates around the third rotating shaft 65.

[0051] Structure 2: The first rotary connection assembly includes a second rotating shaft 64 arranged on the first movable plate 2 and a first bearing arranged on the first screw rod 62, and the second rotating shaft 64 rotates by being inserted into the first bearing; the second rotary connection assembly includes a third rotating shaft 65 arranged on the second movable plate 4 and a second bearing arranged on the second screw rod 63, and the third rotating shaft 65 rotates by being inserted into the second bearing.

[0052] In this embodiment, Structure 1 is adopted. By rotating the adjusting nut 61 to drive the first screw rod 62 and the second screw rod 63 to move, the first movable plate 2 and the second movable plate 4 move towards or away from the lifting plate 3, so as to realize the transverse bone transport or reduction of the bone mass. Through the threaded connection relationship between the adjusting nut 61 and the first screw rod 62 and the second screw rod 63, the rotation distance of the first screw rod 62 and the second screw rod 63 can be micro-controlled, thereby improving the accuracy and reliability of the transverse bone transport.

[0053] As an embodiment of the present invention, a first through hole is provided at one end of the first movable plate 2 away from the lifting plate 3, the second rotating shaft 64 is passed through the first through hole, a second through hole is provided at one end of the second movable plate 4 away from the lifting plate 3, the third rotating shaft 65 is passed through the second through hole, and the first movable plate 2 and the second movable plate 4 rotate around their respective ends, which can increase the transverse movement stroke of the lifting plate 3 and improve the effect of stimulating the microvessels in the bone marrow cavity.

[0054] As an embodiment of the present invention, on one side of the bracket 1 close to the adjusting nut 61, a first moving hole 12 and a second moving hole 13 are provided. The second rotating shaft 64 is arranged in the first moving hole 12, and the third rotating shaft 65 is arranged in the second moving hole 13. The first moving hole 12 and the second moving hole 13 can provide a reliable connection channel for the driving assembly and the moving assembly, ensuring that the moving assembly can be accommodated in the moving through hole 11, effectively reducing the overall size and occupied space of the device, and reducing the impact on the patient in terms of life and psychology.

[0055] As an embodiment of the present invention, on one side of the bracket 1 away from the adjusting nut 61, a third moving hole 14 and a fourth moving hole 15 are provided. The second rotating shaft 64 is arranged in the third moving hole 14, and the third rotating shaft 65 is arranged in the fourth moving hole 15. That is, the first end of the second rotating shaft 64 is connected to the first screw rod 62, and the second end of the second rotating shaft 64 sequentially passes through the first moving hole 12, the first through hole, and the third moving hole 14. The third moving hole 14 provides a supporting force for the second end of the second rotating shaft 64 to ensure the reliable and stable rotation of the first moving plate 2. The first end of the third rotating shaft 65 is connected to the second screw rod 63, and the second end of the third rotating shaft 65 sequentially passes through the second moving hole 13, the second through hole, and the fourth moving hole 15. The fourth moving hole 15 provides a supporting force for the second end of the third rotating shaft 65 to ensure the reliable and stable rotation of the second moving plate 4, effectively improving the overall working stability and reliability of the device.

[0056] As an embodiment of the present invention, the first moving hole 12, the second moving hole 13, the third moving hole 14, and the fourth moving hole 15 are all waist-shaped holes. When the driving assembly drives the first moving plate 2 and the second moving plate 4 to move, the first moving hole 12 and the third moving hole 14 can guide and limit the second rotating shaft 64, and the second moving hole 13 and the fourth moving hole 15 can guide and limit the third rotating shaft 65, improving the stability and accuracy of the movement of the first moving plate 2 and the second moving plate 4.

[0057] As an embodiment of the present invention, the distance between the end of the first moving hole 12 away from the second moving hole 13 and the end of the second moving hole 13 away from the first moving hole 12 is S, and the total length of the first moving plate 2, the lifting plate 3, and the second moving plate 4 is L, where S≥L. This ensures that the first moving plate 2, the lifting plate 3, and the second moving plate 4 can move to a parallel position, that is, when the bone block is in the restored position, the first moving plate 2, the lifting plate 3, and the second moving plate 4 are all in the same plane, and the lifting plate 3 is in contact with the patient's leg skin, effectively reducing the overall occupied space of the device, while also providing sufficient movement space for the lateral movement of the lifting plate 3, and also being able to reduce the impact on the patient in terms of life and psychology to a certain extent.

[0058] As an embodiment of the present invention, the first movable hole 12, the second movable hole 13, the third movable hole 14, and the fourth movable hole 15 have the same size, the first movable plate 2 and the second movable plate 4 have the same size, and the length of the first movable hole 12 is less than or equal to the length of the first movable plate 2. Taking the first movable plate 2 and the first movable hole 12 as an example, when the driving assembly drives the first movable plate 2 to move towards the lifting plate 3, the first movable plate 2 is forced to rotate around the second rotating shaft 64. The end of the first movable plate 2 close to the lifting plate 3 drives the lifting plate 3 to move away from the patient's leg, so that a first angle is formed between the first movable plate 2 and the patient's leg. As the first movable plate 2 moves, the first angle also becomes larger and larger, so that the distance between the lifting plate 3 and the patient's leg also becomes larger and larger, realizing the transportation of the bone mass. When the first angle is 90°, the distance between the lifting plate 3 and the patient's leg is at the maximum value, that is, the distance between the lifting plate 3 and the patient's leg at this time is the length of the first movable plate 2. When the first angle continues to increase, the distance between the lifting plate 3 and the patient's leg will gradually decrease again. This decreasing process is an unnecessary process. Therefore, the length of the first movable hole 12 being less than or equal to the length of the first movable plate 2 can ensure that the first angle changes between 0° and 90°, which can not only limit the movement of the first movable plate 2, improve the working stability and reliability of bone transport, but also avoid unnecessary processes and waste of time. In addition, when the first angle is greater than 90°, the supporting force of the first movable plate 2 on the lifting plate 3 weakens, which is not conducive to microvascular stimulation. Similarly, the second movable plate 4 is the same and will not be elaborated here.

[0059] As an embodiment of the present invention, the bracket 1 is provided with a first threaded hole, the first connecting member is a first screw 7 threadedly connected in the first threaded hole, the lifting plate 3 is provided with a second threaded hole, and the second connecting member is a second screw 8 threadedly connected in the second threaded hole. Through the cooperation of the threaded hole and the screw, the device can be effectively fixed on the tibia, improving the connection strength between the bone marrow cavity microvascular stimulation stent device and the tibia. Preferably, both the first threaded hole and the second threaded hole are countersunk holes, and both the first screw 7 and the second screw 8 are countersunk screws, which can prevent the screw heads of the first screw 7 and the second screw 8 from being exposed, and to a certain extent reduce the overall occupied space of the device.

[0060] As an embodiment of the present invention, there are at least two second screws 8, and the second screws 8 are evenly distributed. By providing a plurality of second screws 8, multi-point connection of the bone mass can be achieved, further improving the connection strength between the lifting plate 3 and the bone mass, and improving the reliability and stability of the bone marrow cavity microvascular stimulation stent.

[0061] In summary, the present invention provides a bone marrow cavity microvascular stimulation stent device, which adopts a rotational connection structure of a first movable plate 2, a lifting plate 3, and a second movable plate 4 to drive the movement of a second connecting member, thereby realizing the transverse bone transport of bone blocks. Compared with the conventional linear motion structure, it does not require a long motion track and cumbersome motion components to be reserved on the outer side of the leg. It can effectively reduce the occupied space of the device without affecting the realization of the function of the bone marrow cavity microvascular stimulation stent, and reduce the impact on the patient in terms of life and psychology; the first movable hole 12 and the second movable hole 13 can provide a reliable connection channel for the driving component and the movable component, ensuring that the movable component can be accommodated in the movable through hole 11; the third movable hole 14 provides a supporting force for the second end of the second rotating shaft 64 to ensure the reliable and stable rotation of the first movable plate 2, and the fourth movable hole 15 provides a supporting force for the second end of the third rotating shaft 65 to ensure the reliable and stable rotation of the second movable plate 4, effectively improving the overall working stability and reliability of the device; the length of the first movable hole 12 being less than or equal to the length of the first movable plate 2 can ensure that the first angle changes between 0° and 90°, which can not only limit the movement of the first movable plate 2, improve the working stability and reliability of the bone marrow cavity microvascular stimulation stent, but also avoid redundant processes and waste of time. In addition, it can also ensure the supporting strength of the first movable plate 2 on the lifting plate 3.

[0062] The above has schematically described the present invention and its implementation manners. This description is not restrictive. What is shown in the drawings is only one of the implementation manners of the present invention, and the actual structure is not limited thereto. Therefore, if those of ordinary skill in the art are inspired by it and design similar structural manners and embodiments to this technical solution without creative work without departing from the purpose of the present invention, they shall fall within the protection scope of the present invention.

Claims

1. A bone marrow cavity microvascular stimulation stent device for transporting bone blocks located on the tibia, characterized in that: include: A bracket (1), wherein a movable through hole (11) is provided in the middle of the bracket (1); A first connecting member, the first connecting member is connected to the tibia, there are at least two first connecting members, and the first connecting member is arranged on the edge of the bracket (1); A movable component, the movable component is arranged in the movable through hole (11), the movable component comprises a first movable plate (2), a lifting plate (3), and a second movable plate (4) which are connected in sequence, a first rotating shaft (5) is arranged between the lifting plate (3) and the first movable plate (2) and the second movable plate (4), a second connecting piece is arranged on the lifting plate (3), and the second connecting piece is connected to the bone block; A drive assembly, the drive assembly being arranged on the support (1); The driving assembly drives the first movable plate (2) and the second movable plate (4) to move in opposite directions so as to move the lifting plate (3) away from the tibia; The driving assembly drives the first movable plate (2) and the second movable plate (4) to move in a backward direction so as to move the lifting plate (3) close to the tibia.

2. The bone marrow cavity microvascular stimulation stent device according to claim 1, characterized in that: The driving assembly comprises an adjusting member arranged on the side of the bracket (1), the adjusting member connecting a first screw rod (62) and a second screw rod (63), the threads of the first screw rod (62) and the second screw rod (63) being opposite, a first rotating connection assembly being arranged between the first screw rod (62) and the first movable plate (2), and a second rotating connection assembly being arranged between the second screw rod (63) and the second movable plate (4).

3. The bone marrow cavity microvascular stimulation stent device according to claim 2, characterized in that: The first screw rod (62) is arranged at the first end of the adjusting member, and the second screw rod (63) is arranged at the second end of the adjusting member.

4. The bone marrow cavity microvascular stimulation stent device according to claim 3, characterized in that: The adjusting member is an adjusting nut (61) provided with an internal thread; the first rotating connection assembly includes a second rotating shaft (64) arranged at an end of the first screw rod (62) away from the adjusting nut (61); the first movable plate (2) rotates around the second rotating shaft (64); the second rotating connection assembly includes a third rotating shaft (65) arranged at an end of the second screw rod (63) away from the adjusting nut (61); the second movable plate (4) rotates around the third rotating shaft (65).

5. The bone marrow cavity microvascular stimulation stent device according to claim 4, characterized in that: A first through hole is provided at one end of the first movable plate (2) away from the lifting plate (3), and the second rotating shaft (64) is inserted into the first through hole; a second through hole is provided at one end of the second movable plate (4) away from the lifting plate (3), and the third rotating shaft (65) is inserted into the second through hole.

6. The bone marrow cavity microvascular stimulation stent device according to claim 4, characterized in that: A first movable hole (12) and a second movable hole (13) are provided on one side of the bracket (1) close to the adjusting nut (61); the second rotating shaft (64) is inserted into the first movable hole (12); and the third rotating shaft (65) is inserted into the second movable hole (13).

7. The bone marrow cavity microvascular stimulation stent device according to claim 6, characterized in that: A third movable hole (14) and a fourth movable hole (15) are provided on a side of the bracket (1) away from the adjusting nut (61); the second rotating shaft (64) is inserted into the third movable hole (14); and the third rotating shaft (65) is inserted into the fourth movable hole (15).

8. The bone marrow cavity microvascular stimulation stent device according to claim 7, characterized in that: The distance between one end of the first movable hole (12) away from the second movable hole (13) and one end of the second movable hole (13) away from the first movable hole (12) is S, and the total length of the first movable plate (2), the lifting plate (3) and the second movable plate (4) is L, and S≥L.

9. The bone marrow cavity microvascular stimulation stent device according to claim 8, characterized in that: The first movable hole (12), the second movable hole (13), the third movable hole (14), and the fourth movable hole (15) have the same size, the first movable plate (2) and the second movable plate (4) have the same size, and the length of the first movable hole (12) is less than or equal to the length of the first movable plate (2).

10. The bone marrow cavity microvascular stimulation stent device according to claim 1, characterized in that: The bracket (1) is provided with a first threaded hole, the first connecting member is a first screw (7) threadedly connected in the first threaded hole, the lifting plate (3) is provided with a second threaded hole, and the second connecting member is a second screw (8) threadedly connected in the second threaded hole.

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