A chip-based remote-controlled bone distraction osteogenesis system

Abstract

This application provides a chip-based remote-controlled distraction osteogenesis system, comprising a first fixation device, a second fixation device, a first distraction device, and a second distraction device. Furthermore, the system includes a control device for adjusting the spacing between the first and second distraction devices, and a computer system for remotely controlling the operating state of the control device. By combining the first and second distraction devices with the computer system, this application enables precise and uniform remote adjustment of the distraction osteogenesis device, thereby overcoming the shortcomings of conventional distraction osteogenesis devices, which require manual adjustment and have the distractor handle exposed to the skin.

Description

Technical Field

[0001] The present application relates to the field of medical device technology, and in particular to a chip-based remote-controlled bone distraction osteogenesis system. Background Art

[0002] Distraction osteogenesis is an endogenous bone tissue engineering technology. The bone is surgically cut and special distractors are placed on both sides of the cut line. After a certain delay period (5-7 days), the cut gap is slowly distracted (1-1.5mm / day) to stimulate the body's tissue regeneration potential. New bone tissue is continuously formed in the distraction gap, while the muscles, nerves, blood vessels, skin, etc. around the bone are simultaneously extended, thereby achieving the purpose of lengthening the bone.

[0003] Conventional distraction osteogenesis methods have the following disadvantages: the distractor needs to be manually adjusted, the handle of the distractor is exposed outside the skin, the doctor cannot adjust it through remote control, and the patient's hospitalization time is long; at the same time, it is difficult to achieve precision and uniformity manually, and it is impossible to adjust according to the patient's real-time distraction status to achieve personalized distraction. Summary of the Invention

[0004] In order to improve the problem of difficulty in accurate and uniform distraction in existing distraction osteogenesis methods, the present application provides a chip-based remote-controlled bone distraction osteogenesis system.

[0005] The present application provides a chip-based remote-controlled distraction osteogenesis system that adopts the following technical solutions:

[0006] A chip remote-controlled bone distraction osteogenesis system, comprising a first fixation device, a second fixation device, a first distraction device, and a second distraction device, and further comprising:

[0007] A control device, used for adjusting the distance between the first stretching device and the second stretching device;

[0008] A computer system is used to remotely control the working state of the control device.

[0009] Furthermore, a stretching screw is provided inside the second stretching device, and the control device is provided at an end of the second stretching device away from the first stretching device, and is used to drive the stretching screw to rotate;

[0010] One end of the stretching screw rod which is away from the control device is connected with a thread of the stretching device.

[0011] Furthermore, a shock-absorbing spring is provided between the control device and the second stretching device and is sleeved outside the stretching screw.

[0012] Furthermore, an annular spacing sensor is provided between the adjacent ends of the tensioning device 1 and the tensioning device 2, and the tensioning screw passes through the hollow part of the spacing sensor. At least four sensing points are provided on each of the two spacing sensors, and the corresponding two sensing points on the two spacing sensors are used to monitor the distance between the tensioning device 1 and the tensioning device 2 at that location.

[0013] Furthermore, the control device includes:

[0014] an electric motor, configured to drive the pull screw to rotate;

[0015] A chip integrated system for receiving a stretching instruction wireless signal sent by a computer system and a wired signal sent by the spacing sensor, and controlling the working state of the electric motor;

[0016] a signal converter, configured to convert an electrical signal of the chip integrated system into a force signal and transmit the force signal to the electric motor;

[0017] Micro power supply for providing electricity.

[0018] Furthermore, the control process of the chip integration system is:

[0019] S1 receives wireless signal instructions sent by the computer system and the wired sensing signal sent by the distance sensor;

[0020] S2. Based on the distance data between the two spacing sensors, it is determined whether the fixing device 1 and the fixing device 2 are loose;

[0021] S3. Based on the spacing data between the multiple sensing points between the two spacing sensors, the central long axis of the hexahedron formed by the spacing line segments of the multiple sets of opposing sensing points is determined, and the real-time direction of the tension between the first and second tensioning devices is determined; based on the direction of the tension, the control device adjusts the direction of the damping spring to adapt to the direction of the tension, thereby reducing the torsional force applied to the first and second fixtures;

[0022] S4. Integrate the stretching instruction transmitted by the wireless signal from the computer system, the current distance between stretching device 1 and stretching device 2, the actual stretching speed of the previous day, and other parameters, and generate a recommended optimal stretching speed instruction signal based on the stretching data model within the chip integrated system;

[0023] S5. Wirelessly feed the recommended stretching speed signal to the computer system for clinical physicians' decision-making reference;

[0024] S6. The clinician selects the stretching speed recommended by the chip integration system or sets it by himself in the computer system, and sends the instruction to the chip integration system.

[0025] Furthermore, in step S2, if the hexahedron formed by the spacing line segments of multiple groups of sensing points is not a regular rectangular structure, its central long axis is not completely parallel to the central long axis of the tensioning device 1 and the tensioning device 2, it is determined that the fixing device 1 and the fixing device 2 are loose.

[0026] Furthermore, a control box is provided at one end of the second tensioning device away from the first tensioning device, the control device is installed in the control box, the output end of the electric motor is coaxially fixedly connected to the rotating shaft, the end surface of the tensioning screw is provided with a positioning groove adapted for plugging into the rotating shaft, the control box is provided with a base that is loosely sleeved outside the rotating shaft, the shock-absorbing spring is provided between the base and the second tensioning device, and one end of the shock-absorbing spring is fixedly connected to the base;

[0027] The rotating shaft is provided with a clutch sleeve together with the movable sleeve, and the control box is provided with an adjustment mechanism for driving the clutch sleeve to slide on the rotating shaft to be close to the second tensioning device or the bottom support;

[0028] When the clutch sleeve approaches the second tensioning device, the clutch sleeve and the tensioning screw are connected in a synchronous manner;

[0029] When the clutch sleeve approaches the bottom bracket, the clutch sleeve and the bottom bracket are connected in a synchronous manner.

[0030] Furthermore, the adjustment mechanism includes an electromagnet installed on the base and a ferromagnetic part installed on the clutch sleeve. A reset spring is provided between the clutch sleeve and the base. When the reset spring is in an initial state, the clutch sleeve is connected to the tension screw in a synchronous manner.

[0031] Furthermore, the clutch sleeve is provided with a plurality of tooth grooves at both ends of the shaft in the axial direction, and the tension screw and the end of the base close to the clutch sleeve are fixedly connected with a plurality of tooth protrusions that mesh with the corresponding plurality of tooth grooves.

[0032] In summary, this application includes at least one of the following beneficial technical effects:

[0033] 1. By controlling the computer system to send wireless signals, the chip integrated system in the control device receives the signals and converts the electrical signals into force signals through a signal converter. The force signals transmitted to the electric motor, with the assistance of a micro power supply, drive the distraction screw to rotate at a constant speed. This can adjust the spatial relative position of distraction device 1 and distraction device 2, achieving continuous and uniform distraction of the distraction osteogenesis mechanism. This avoids the shortcomings of conventional distraction osteogenesis devices, such as inaccurate and uneven manual adjustment, the exposed handle of the distractor, and the long hospital stay of the patient.

[0034] 2. By installing two spacing sensors between the first and second tensioning devices, and setting four sets of symmetrically arranged sensing points on the two spacing sensors, the spatial alignment posture of the first and second tensioning devices can be monitored in real time. On the one hand, by determining whether the hexahedron enclosed by the spacing line segments of the four sets of sensing points forms a regular rectangular structure, it is used to determine whether the first and second fixtures are loose.

[0035] 3. The control device drives the shock-absorbing spring to rotate, so that the attachment support point where the shock-absorbing spring contacts the tensioning device 2 changes, thereby adjusting the posture of the tensioning device 2, so that the positioning posture of the tensioning device 1 and the tensioning device 2 is restored to a state where the axis thereof is parallel to the direction of the tensioning force, so as to reduce the torsional force generated on the fixing device 1 and the fixing device 2 while adjusting the distance between the tensioning device 1 and the tensioning device 2, and ensure as stable and high-precision tensioning effect as possible. BRIEF DESCRIPTION OF THE DRAWINGS

[0036] In order to more clearly illustrate the technical solutions in the present invention or the prior art, the following briefly introduces the drawings required for use in the embodiments or the description of the prior art. Obviously, the drawings described below are some embodiments of the present invention. For ordinary technicians in this field, other drawings can be obtained based on these drawings without paying any creative work.

[0037] Figure 1 It is a schematic diagram of the overall structure of an embodiment of the present application;

[0038] Figure 2 This is a schematic structural diagram of the first and second stretching devices according to an embodiment of the present application;

[0039] Figure 3 This is a schematic diagram of the distribution of sensing points on the spacing sensor of an embodiment of the present application;

[0040] Figure 4 is a module schematic diagram of a control device according to an embodiment of the present application;

[0041] Figure 5 This is a schematic diagram of the control flow of the chip integration system according to an embodiment of the present application;

[0042] Figure 6 It is a hexahedron surrounded by four stretching spacing line segments at multiple sensing points in the embodiment of the present application;

[0043] Figure 7 This is a schematic cross-sectional view of the embodiment of the present application, mainly used to illustrate the clutch sleeve and the adjustment mechanism;

[0044] Figure 8 yes Figure 7 Enlarged schematic diagram of part A.

[0045] Reference numerals:

[0046] 11. Fixing device 1; 12. Fixing device 2;

[0047] 21. Tensioning device 1; 22. Tensioning device 2;

[0048] 3. Tension screw; 31. Positioning slot;

[0049] 41. Shock-absorbing spring; 42. Bottom support;

[0050] 5. Distance sensor;

[0051] 61. Electric motor; 62. Control box; 63. Rotating shaft; 64. Outer sheath;

[0052] 7. Clutch sleeve; 71. Tooth groove; 72. Tooth protrusion;

[0053] 81. Electromagnet; 82. Ferromagnetic component; 83. Return spring;

[0054] 91. Key bar; 92. Keyway. DETAILED DESCRIPTION

[0055] To make the objectives, technical solutions, and advantages of the present invention more clear, the technical solutions of the present invention will be clearly and completely described below in conjunction with the accompanying drawings. Obviously, the embodiments described are only some embodiments of the present invention, not all embodiments. Based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field without making creative efforts shall fall within the scope of protection of the present invention.

[0056] Reference Figure 1 、 Figure 2 and Figure 3 The embodiment of the present application discloses a chip-based remote-controlled bone distraction osteogenesis system, which includes a fixing device 11, a fixing device 12, a distraction device 21 and a distraction device 22. The fixing device 11 and the fixing device 12 are respectively fixed to the upper and lower ends of the bone, and the distraction device 21 and the distraction device 22 are respectively installed on the fixing device 11 and the fixing device 12.

[0057] Also includes:

[0058] The control device can receive wireless instructions from the computer system to achieve precise control of the distance between the stretching device 1 21 and the stretching device 2 22;

[0059] A computer system is used to remotely control the working status of the control device.

[0060] The second stretching device 22 is provided with a stretching screw 3, and the control device is provided at one end of the second stretching device 22 away from the first stretching device 21, and is used to drive the stretching screw 3 to rotate;

[0061] One end of the stretching screw 3 facing away from the control device is threadedly connected to the stretching device 1 21 , and the other end is movably connected to the stretching device 2 22 .

[0062] A damping spring 41 is provided between the control device and the second tensioning device 22 and is sleeved on the outside of the tensioning screw 3 .

[0063] Reference Figure 4 , the control device includes:

[0064] The electric motor 61 is used to drive the tension screw 3 to rotate;

[0065] The chip integrated system is used to receive the stretching instruction wireless signal sent by the computer system, and receive the wired signal sent by the spacing sensor 5, and control the working state of the electric motor 61;

[0066] a signal converter, configured to convert the electrical signal of the chip integrated system into a force signal and transmit the force signal to the electric motor 61;

[0067] Micro power supply for providing electricity.

[0068] Therefore, during distraction osteogenesis, the skin is first incised and the bone is cut at the appropriate location. Distraction screw 3 is rotated to adjust distraction device 1 21 and distraction device 2 22 to their closest relative positions, forming a distraction osteogenesis mechanism consisting of "fixation device 1 11 - distraction device 1 21 - distraction screw 3 - distraction device 2 22 - fixation device 2 12." The control device is located at the end of distraction screw 3. Fixation device 1 11 and fixation device 2 12 are placed at both ends of the osteotomy line and secured to the ends with medical screws. The skin incision is then tightly sutured to complete the installation of the distraction device.

[0069] By controlling the computer system to send wireless signals, the chip integrated system in the control device receives the signals and converts the electrical signals into force signals through a signal converter. The force signals transmitted to the electric motor 61, with the assistance of a micropower supply, drive the distraction screw 3 to rotate at a constant speed, thereby adjusting the spatial relative position of distraction device 1 21 and distraction device 2 22, achieving continuous and uniform distraction of the distraction osteogenesis mechanism. This avoids the shortcomings of conventional distraction osteogenesis devices, such as the imprecise and uneven manual adjustment, the exposed handle of the distractor, and the prolonged hospital stay.

[0070] After a period of remote-controlled distraction osteogenesis, when imaging CT determines that the expected distraction effect has been achieved, the distraction osteogenesis device can be removed surgically.

[0071] In order to precisely control the osteogenesis distraction process, Figure 1 、 Figure 2 and Figure 3 Annular spacing sensors 5 are positioned between the adjacent ends of stretching device 1 21 and stretching device 2 22. The stretching screw 3 passes through the hollow portion of the spacing sensors 5. Each of the two spacing sensors 5 is provided with at least four sensing points. The distance between two corresponding sensing points on the two spacing sensors 5 is used to monitor the distance between stretching device 1 21 and stretching device 2 22 at that location. Specifically, four sensing points, A1 to A4 and B1 to B4, are symmetrically positioned on each of the two spacing sensors 5. A1 and B1, A2 and B2, A3 and B3, and A4 and B4 can respectively sense the distance between stretching device 1 21 and stretching device 2 22 in real time.

[0072] Reference Figure 5 and Figure 6 , the control process of the above chip integration system is:

[0073] S1. Receive the wireless signal command sent by the computer system and the wired sensing signal sent by the distance sensor 5 respectively.

[0074] S2. Based on the spacing data between the multiple sensing points between the two spacing sensors 5, determine whether fixture 11 and fixture 2 12 are loose. Specifically, if the hexahedron formed by the spacing line segments of the multiple sensing points is not a regular rectangular structure, and its central long axis is not completely parallel to the central long axes of tensioning device 1 21 and tensioning device 2 22, it indicates that the positions of fixture 1 11 and fixture 2 12 are offset, and it is determined that the fixing screws of fixture 1 11 and fixture 2 12 may be loose.

[0075] S3. Based on the spacing data between multiple sensing points between the two spacing sensors 5, the central long axis of the hexahedron formed by the spacing line segments of multiple groups of relative sensing points is determined, and the real-time direction of the tension between the tensioning device 1 21 and the tensioning device 2 22 is determined; according to the direction of the tension, the direction of the shock-absorbing spring 41 is corrected by the control device to adapt to the direction of the tension, thereby reducing the torsional force generated on the fixing device 1 11 and the fixing device 2 12; specifically, when the spacing line segment hexahedron is not a regular rectangular structure, the control device drives the shock-absorbing spring 41 to rotate so that the attachment support point of the upper end of the shock-absorbing spring 41 on the tensioning device 2 22 is moved, and the position direction of the supporting force of the shock-absorbing spring 41 is changed to adjust the hexahedron formed by the spacing line segments so that its central long axis is parallel to the central long axis of the tensioning device 1 21 and the tensioning device 2 22, thereby reducing the torsional force generated on the fixing device 1 11 and the fixing device 2 12.

[0076] S4. Based on the stretching instruction sent by the wireless signal of the integrated computer system, the distance between the current stretching device 1 21 and the stretching device 2 22, the actual stretching speed of the previous day and other parameters, a recommended optimal stretching speed instruction signal is generated based on the stretching data model within the chip integrated system.

[0077] S5. The recommended stretching speed signal is fed back to the computer system via wireless means for clinical physicians to make reference.

[0078] S6. The clinician selects the stretching speed recommended by the chip integration system or sets it by himself in the computer system, and sends the instruction to the chip integration system.

[0079] Therefore, by setting two spacing sensors 5 between the tensioning device 1 21 and the tensioning device 2 22, and setting four groups of symmetrically arranged sensing points on the two spacing sensors 5, the spatial alignment posture of the tensioning device 1 21 and the tensioning device 2 22 can be monitored in real time. On the one hand, by judging whether the hexahedron surrounded by the spacing line segments of the four groups of sensing points is a regular rectangular structure, it is used to judge whether the fixing device 1 11 and the fixing device 2 12 are loose; on the other hand, the control device drives the shock-absorbing spring 41 to rotate, so that the attachment support point where the shock-absorbing spring 41 contacts the tensioning device 2 22 changes, thereby adjusting the posture of the tensioning device 2 22, so that the alignment posture of the tensioning device 1 21 and the tensioning device 2 22 is restored to a state where the axis thereof is parallel to the direction of the tensioning force, so as to reduce the torsional force generated on the fixing device 11 and the fixing device 2 12 while adjusting the spacing between the tensioning device 1 21 and the tensioning device 2 22, and ensure a stable and high-precision tensioning effect as much as possible.

[0080] In order to realize the convenient rotation control of the shock absorbing spring 41, refer to Figure 7 and Figure 8 A control box 62 is provided at the end of the second tensioning device 22 facing away from the first tensioning device 21. The control device is installed within the control box 62, which is fixedly mounted on the second fixing device 12. A rotating shaft 63 extending from the control box 62 is coaxially fixedly connected to the output end of the electric motor 61. A positioning slot 31 is formed on the end surface of the tensioning screw 3 to be plugged into and adapted for the rotating shaft 63. A base 42 is provided on the control box 62, which is loosely sleeved around the rotating shaft 63. A shock-absorbing spring 41 is disposed between the base 42 and the second tensioning device 22, with one end of the spring fixedly connected to the base 42.

[0081] A clutch sleeve 7 is provided on the rotating shaft 63 and the movable sleeve. Specifically, the rotating shaft 63 and the clutch sleeve 7 are connected to each other in a synchronous manner through a key bar 91 and a key groove 92. For example, a key groove 92 is provided through the inner wall of the synchronous sleeve in the axial direction, and a key bar 91 having a length greater than the axial length of the clutch sleeve 7 is fixed to the rotating shaft 63. When the clutch sleeve 7 slides on the rotating shaft 63, the key bar 91 slides in the key groove 92.

[0082] The control box 62 is provided with an adjustment mechanism for driving the clutch sleeve 7 to slide on the rotating shaft 63 to be close to the second tensioning device 22 or the bottom support 42;

[0083] When the clutch sleeve 7 is close to the tensioning device 2 22, the clutch sleeve 7 and the tensioning screw 3 are connected simultaneously;

[0084] When the clutch sleeve 7 is close to the base 42 , the clutch sleeve 7 and the base 42 are connected in a synchronous manner.

[0085] Among them, reference Figure 7 and Figure 8 The adjustment mechanism includes an electromagnet 81 installed on the base 42 and a ferromagnetic part 82 installed on the clutch sleeve 7. The electromagnet 81 and the electric motor 61 are both controlled by the chip integrated system. A reset spring 83 is provided between the clutch sleeve 7 and the base 42. When the reset spring 83 is in the initial state, the clutch sleeve 7 is connected to the tension screw 3 in a synchronous manner.

[0086] The clutch sleeve 7 is provided with a plurality of tooth grooves 71 at both ends of the shaft 63 axially. The tension screw 3 and the end of the base 42 close to the clutch sleeve 7 are fixed with a plurality of tooth protrusions 72 that mesh with the corresponding tooth grooves 71 .

[0087] In this way, in the initial state, the return spring 83 is compressed between the base 42 and the clutch sleeve 7. At this time, the clutch sleeve 7 is close to the tensioning device 2 22, and the multiple tooth protrusions 72 on the tensioning screw 3 are embedded in the multiple tooth grooves 71 on the adjacent end face of the clutch sleeve 7, which can realize the synchronous connection between the clutch sleeve 7 and the tensioning screw 3; when the electric motor 61 is controlled to drive the rotating shaft 63 to rotate, the rotating shaft 63 drives the clutch sleeve 7 synchronously connected thereto to rotate, and the clutch sleeve 7 continues to drive the tensioning screw 3 synchronously connected thereto to rotate during rotation. When the tensioning screw 3 rotates, the tensioning screw 3 can drive the tensioning device 1 21 away from the tensioning device 2 22 with the help of the threaded connection effect with the tensioning device 1 21, so that the distance between the tensioning device 1 21 and the tensioning device 2 22 can be adjusted to achieve the tensioning effect.

[0088] When the two spacing sensors 5 detect that the direction of the pulling force between the tensioning device 1 21 and the tensioning device 2 22 is not parallel to the central axis of the tensioning device 1 21 and the tensioning device 2 22, the electromagnet 81 is first controlled to start and energize the magnet, and attract the ferromagnetic part 82 on the clutch sleeve 7, so that the clutch sleeve 7 overcomes the compressive deformation force of the return spring 83 and moves closer to the bottom bracket 42, thereby making the multiple tooth protrusions 72 on the bottom bracket 42 fit into the multiple tooth grooves 71 on the adjacent end surface of the clutch sleeve 7, so that the clutch sleeve 7 and the bottom bracket 42 can be connected in a synchronous manner; then the electric motor 6 The rotating shaft 63 is controlled to rotate. When the rotating shaft 63 drives the clutch sleeve 7 to rotate, the base 42 is slowly rotated, thereby driving the compression spring to rotate between the base 42 and the second tensioning device 22, so as to move the attachment support point of the upper end of the damping spring 41 on the second tensioning device 22. Thus, by changing the position and direction of the supporting force of the damping spring 41, the hexahedron formed by the spacing line segments is adjusted so that its central long axis is parallel to the central long axes of the first tensioning device 21 and the second tensioning device 22, thereby reducing the torsional force generated on the first fixing device 11 and the second fixing device 12.

[0089] In addition, an outer sheath 64 is fixedly connected to the control box 62 and is fitted around the outside of the second tensioning device 22 , which can effectively protect the internal adjustment mechanism while maintaining the stability of the second tensioning device 22 .

[0090] The implementation principle of a chip remote-controlled bone distraction osteogenesis system in the embodiment of the present application is as follows:

[0091] During distraction osteogenesis, the skin is first incised and the bone is cut at the appropriate location. Distraction screw 3 is rotated to adjust distraction device 1 21 and distraction device 2 22 to their closest relative positions, forming a distraction osteogenesis mechanism consisting of "fixation device 1 11 - distraction device 1 21 - distraction screw 3 - distraction device 2 22 - fixation device 2 12." The control device is located at the end of distraction screw 3. Fixation device 1 11 and fixation device 2 12 are placed at both ends of the osteotomy line and secured to the ends with medical screws. The skin incision is then tightly sutured to complete the installation of the distraction device.

[0092] By regulating the computer system to send wireless signals, the chip integrated system in the control device receives the signals and converts the electrical signals into force signals through the signal converter. The force signals transmitted to the electric motor 61 drive the distraction screw 3 to rotate at a uniform speed with the assistance of a micro power supply, thereby adjusting the spatial relative position of the distraction device 1 21 and the distraction device 2 22, and realizing continuous and uniform distraction of the distraction osteogenesis mechanical device.

[0093] Furthermore, by setting two spacing sensors 5 between the tensioning device 1 21 and the tensioning device 2 22, and setting four groups of symmetrically arranged sensing points on the two spacing sensors 5, the spatial alignment posture of the tensioning device 1 21 and the tensioning device 2 22 can be monitored in real time. On the one hand, by judging whether the hexahedron formed by the spacing line segments of the four groups of sensing points is a regular rectangular structure, it is used to judge whether the fixing device 1 11 and the fixing device 2 12 are loose; on the other hand, the control device drives the shock-absorbing spring 41 to rotate, so that the attachment support point where the shock-absorbing spring 41 contacts the tensioning device 2 22 changes, thereby adjusting the posture of the tensioning device 2 22, so that the alignment posture of the tensioning device 1 21 and the tensioning device 2 22 is restored to a state where the axis thereof is parallel to the direction of the tensioning force, so as to reduce the torsional force generated on the fixing device 1 11 and the fixing device 2 12 while adjusting the spacing between the tensioning device 1 21 and the tensioning device 2 22, and ensure a stable and high-precision tensioning effect as much as possible.

[0094] Finally, it should be noted that the above embodiments are only used to illustrate the technical solutions of the present invention, rather than to limit it. Although the present invention has been described in detail with reference to the aforementioned embodiments, those skilled in the art should understand that they can still modify the technical solutions described in the aforementioned embodiments, or make equivalent replacements for some of the technical features therein. However, these modifications or replacements do not deviate the essence of the corresponding technical solutions from the spirit and scope of the technical solutions of the various embodiments of the present invention.

Claims

1. A chip remote-controlled bone distraction osteogenesis system, comprising a first fixation device, a second fixation device, a first distraction device, and a second distraction device, characterized in that: Also includes: A control device, used for adjusting the distance between the first stretching device and the second stretching device; A computer system for remotely controlling the working state of the control device; A stretching screw is provided inside the second stretching device, and the control device is provided at one end of the second stretching device away from the first stretching device, and is used to drive the stretching screw to rotate; One end of the tensioning screw away from the control device is threadedly connected to the tensioning device 1; a shock-absorbing spring is provided between the control device and the tensioning device 2 and is sleeved on the outside of the tensioning screw, and the shock-absorbing spring is a coil spring; A circular spacing sensor is provided between the adjacent ends of the first and second stretching devices. The stretching screw passes through the hollow portion of the spacing sensor. Four sensing points are provided on each of the two spacing sensors. The distance between the corresponding two sensing points on the two spacing sensors is used to monitor the distance between the first and second stretching devices at that location. Based on the spacing data between multiple sensing points between two spacing sensors, the central long axis of the hexahedron surrounded by the spacing line segments of multiple groups of relative sensing points is determined, and the real-time direction of the tension between the tensioning device one and the tensioning device two is determined; when the hexahedron surrounded by the spacing line segments is not a regular rectangular structure, the control device drives the shock-absorbing spring to rotate so that the attachment support point of the upper end of the shock-absorbing spring on the tensioning device two is moved, and the position direction of the supporting force of the shock-absorbing spring is changed to adjust the hexahedron surrounded by the spacing line segments so that its central long axis is parallel to the central long axis of the tensioning device one and the tensioning device two, so as to reduce the torsional force generated on the fixing device one and the fixing device two.

2. A chip remote-controlled distraction osteogenesis system according to claim 1, characterized in that: The control device comprises: an electric motor, configured to drive the pull screw to rotate; A chip integrated system for receiving a stretching instruction wireless signal sent by a computer system, and receiving a wired signal sent by the spacing sensor, and controlling the working state of the electric motor; a signal converter, configured to convert an electrical signal of the chip integrated system into a force signal and transmit the force signal to the electric motor; Micro power supply for providing electricity.

3. A chip remote-controlled distraction osteogenesis system according to claim 2, characterized in that: The control process of the chip integration system is as follows: S1 receives wireless signal instructions sent by the computer system and the wired sensing signal sent by the distance sensor; S2. Based on the distance data between the two spacing sensors, it is determined whether the fixing device 1 and the fixing device 2 are loose; S3. Based on the spacing data between the multiple sensing points between the two spacing sensors, the central long axis of the hexahedron formed by the spacing line segments of the multiple sets of opposing sensing points is determined, and the real-time direction of the tension between the first and second tensioning devices is determined; based on the direction of the tension, the control device adjusts the direction of the damping spring to adapt to the direction of the tension, thereby reducing the torsional force applied to the first and second fixtures; S4. Generate a recommended stretching speed command signal based on the stretching data model within the chip integrated system, taking into account the stretching command transmitted by the wireless signal from the computer system, the current distance between stretching device 1 and stretching device 2, and the actual stretching speed parameter from the previous day; S5. Wirelessly feed the recommended stretching speed signal to the computer system for clinical physicians' decision-making reference; S6. The clinician selects the stretching speed recommended by the chip integration system or sets it by himself in the computer system, and sends the instruction to the chip integration system.

4. A chip remote-controlled distraction osteogenesis system according to claim 3, characterized in that: In step S2, if the hexahedron enclosed by the spacing line segments of the multiple groups of sensing points is not a regular rectangular structure, its central long axis is not completely parallel to the central long axes of the tensioning device 1 and the tensioning device 2, it is determined that the fixing device 1 and the fixing device 2 are loose.

5. A chip-based remote-controlled distraction osteogenesis system according to any one of claims 2 to 4, characterized in that: A control box is provided at one end of the second tensioning device away from the first tensioning device, the control device is installed in the control box, the output end of the electric motor is coaxially fixedly connected to the rotating shaft, the end surface of the tensioning screw is provided with a positioning groove adapted for plugging into the rotating shaft, the control box is provided with a base that is loosely sleeved outside the rotating shaft, the shock-absorbing spring is provided between the base and the second tensioning device, and one end of the shock-absorbing spring is fixedly connected to the base; The rotating shaft is provided with a clutch sleeve together with the movable sleeve, and the control box is provided with an adjustment mechanism for driving the clutch sleeve to slide on the rotating shaft to be close to the second tensioning device or the bottom support; When the clutch sleeve approaches the second tensioning device, the clutch sleeve and the tensioning screw are connected in a synchronous manner; When the clutch sleeve approaches the bottom bracket, the clutch sleeve and the bottom bracket are connected in a synchronous manner.

6. A chip remote-controlled distraction osteogenesis system according to claim 5, characterized in that: The adjustment mechanism includes an electromagnet installed on the base and a ferromagnetic part installed on the clutch sleeve. A reset spring is provided between the clutch sleeve and the base. When the reset spring is in an initial state, the clutch sleeve is connected to the tension screw in a synchronous manner.

7. A chip remote-controlled distraction osteogenesis system according to claim 6, characterized in that: The clutch sleeve is provided with a plurality of tooth grooves at both ends along the axial direction of the rotating shaft, and the tensioning screw and the end of the base close to the clutch sleeve are fixedly connected with a plurality of tooth protrusions that mesh with the corresponding plurality of tooth grooves.

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