Bone distraction osteogenesis system remotely controlled by chip

Abstract

The invention provides a bone distraction osteogenesis system remotely controlled by a chip, which comprises a fixing device I, a fixing device II, a distraction device I and a distraction device II, and further comprises a control device for adjusting the distance between the distraction device I and the distraction device II; and the computer system is used for remotely controlling the working state of the control device. The distraction device I and the distraction device II are matched with the computer system for use, so that the distraction osteogenesis device can be accurately, uniformly and remotely adjusted, and the defects that a conventional distraction osteogenesis device is manually adjusted and a handle of a distraction device is exposed out of the skin are overcome.

Description

Technical Field

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

[0002] Distraction osteogenesis is an endogenous bone tissue engineering technology. The bone is cut open surgically and special distractors are placed on both sides of the bone cutting line. After a certain delay period (5-7 days), the bone cutting 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, and the muscles, nerves, blood vessels, skin, etc. around the bones are extended at the same time, thereby achieving the purpose of lengthening the bones.

[0003] Conventional methods of distraction osteogenesis 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 remote-controlled bone distraction osteogenesis system.

[0005] The present application provides a chip remote-controlled bone distraction osteogenesis system that adopts the following technical solutions: A bone distraction osteogenesis system controlled remotely by a chip, comprising a first fixing device, a second fixing device, a first distraction device and a second distraction device, and further comprising: A control device, used for adjusting the distance between the first stretching device and the second stretching device; A computer system is used to remotely control the working state of the control device.

[0006] Furthermore, a stretching screw is inserted into the second stretching device, and the control device is arranged at an 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 stretching screw rod which is away from the control device is threadedly connected with a stretching device.

[0007] Furthermore, a shock-absorbing spring sleeved outside the tensioning screw is arranged between the control device and the second tensioning device.

[0008] Furthermore, an annular spacing sensor is provided between the adjacent ends of the tensioning device 1 and the tensioning device 2, the tensioning screw passes through the hollow portion of the spacing sensor, and at least four sensing points are provided on each of the two spacing sensors. The corresponding two sensing points on the two spacing sensors are used to monitor the spacing between the tensioning device 1 and the tensioning device 2 at that location.

[0009] Furthermore, the control device comprises: An electric motor, used for driving the tension screw to rotate; A chip integrated system, used for receiving the stretching instruction wireless signal sent by the computer system, receiving the wired signal sent by the spacing sensor, and controlling the working state of the electric motor; A signal converter, used for converting the electrical signal of the chip integrated system into a force signal and transmitting the force signal to the electric motor; Micro power supply for providing electrical power.

[0010] Furthermore, the control process of the chip integration system is: S1. Respectively receive wireless signal instructions sent by the computer system and wired sensing signals sent by the spacing sensor; S2. Based on the distance data between the multiple sensing points 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, determine the central long axis of the hexahedron surrounded by the spacing line segments of the multiple sets of relative sensing points, and determine the real-time direction of the tension between the tension device 1 and the tension device 2; according to the direction of the tension, correct the direction of the shock absorbing spring through the control device to adapt to the direction of the tension, thereby reducing the torsional force generated on the fixing device 1 and the fixing device 2; S4. Based on the stretching data model inside the chip integrated system, a stretching command signal for the optimal stretching speed is generated based on the stretching data model inside the chip integrated system, according to the stretching command sent by the wireless signal of the computer system, the distance between the current stretching device 1 and the stretching device 2, the actual stretching speed of the previous day and other parameters; S5. Feedback the recommended stretching speed signal to the computer system wirelessly for clinical physicians’ decision-making reference; S6. The clinician selects the stretching speed recommended by the chip integration system or set by himself in the computer system, and sends the instruction to the chip integration system.

[0011] Furthermore, 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 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.

[0012] 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 with a rotating shaft, the end surface of the tensioning screw is provided with a positioning groove adapted for plugging with the rotating shaft, a base bracket which is sleeved on the outside of the rotating shaft with a gap is provided on the control box, the shock-absorbing spring is provided between the base bracket and the second tensioning device and one end of the shock-absorbing spring is fixedly connected to the base bracket; The rotating shaft and the movable sleeve are provided with a clutch 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 bracket; 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.

[0013] Furthermore, the adjustment mechanism includes an electromagnet installed on the base and a ferromagnetic member 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 movably connected with the tension screw.

[0014] 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.

[0015] In summary, the present application includes at least one of the following beneficial technical effects: 1. 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 drive the distraction screw to rotate at a uniform speed with the assistance of a micro power supply, so as to adjust the spatial relative position of the distraction device 1 and the distraction device 2, and realize continuous and uniform distraction of the distraction osteogenesis mechanical device. This avoids the shortcomings of conventional distraction osteogenesis devices, such as inaccurate and uneven manual adjustment, the handle of the distractor is exposed outside the skin, and the patient's long hospital stay. 2. By setting two spacing sensors between the tensioning device 1 and the tensioning device 2, and setting four groups of symmetrically arranged sensing points on the two spacing sensors, the spatial alignment posture of the tensioning device 1 and the tensioning device 2 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 determine whether the fixing device 1 and the fixing device 2 are loose; 3. The shock-absorbing spring is driven to rotate by the control device, 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 alignment 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

[0016] In order to more clearly illustrate the technical solutions in the present invention or the prior art, the drawings required for use in the embodiments or the description of the prior art will be briefly introduced below. 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 creative work.

[0017] Figure 1 It is a schematic diagram of the overall structure of an embodiment of the present application; Figure 2 It is a schematic diagram of the structure of the first and second stretching devices of the embodiment of the present application; Figure 3 is a schematic diagram of the distribution of sensing points on the spacing sensor of an embodiment of the present application; Figure 4 is a module schematic diagram of a control device according to an embodiment of the present application; Figure 5 is a control flow diagram of a chip integration system according to an embodiment of the present application; Figure 6 It is a hexahedron surrounded by four stretching spacing line segments at multiple sensing points in the embodiment of the present application; Figure 7 It is a cross-sectional structural schematic diagram mainly used to show the clutch sleeve and the adjustment mechanism of the embodiment of the present application; Figure 8 yes Figure 7 Enlarged schematic diagram of part A.

[0018] Reference numerals: 11. Fixing device 1; 12. Fixing device 2; 21. Tensioning device 1; 22. Tensioning device 2; 3. Tension screw; 31. Positioning groove; 41. shock absorbing spring; 42. bottom bracket; 5. Spacing sensor; 61. electric motor; 62. control box; 63. rotating shaft; 64. outer sheath; 7. Clutch sleeve; 71. Tooth groove; 72. Tooth protrusion; 81. electromagnet; 82. ferromagnetic part; 83. return spring; 91. Key bar; 92. Keyway. DETAILED DESCRIPTION

[0019] In order to make the purpose, technical solution and advantages of the present invention clearer, the technical solution of the present invention will be clearly and completely described below in conjunction with the drawings of the present invention. Obviously, the described embodiments are part of the embodiments of the present invention, not all of the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the present invention.

[0020] Reference Figure 1 , Figure 2 and Figure 3 The embodiment of the present application discloses a chip 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.

[0021] Also includes: 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; A computer system is used to remotely control the working status of the control device.

[0022] Among them, a stretching screw 3 is inserted into the second stretching device 22, and the control device is arranged 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; 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 .

[0023] A damping spring 41 sleeved on the outside of the tensioning screw 3 is arranged between the control device and the second tensioning device 22 .

[0024] Reference Figure 4 , the control device comprises: The electric motor 61 is used to drive the tension screw 3 to rotate; The chip integrated system is used to receive the wireless signal of the stretching instruction 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; A signal converter, used for converting the electrical signal of the chip integrated system into a force signal and transmitting it to the electric motor 61; Micro power supply for providing electrical power.

[0025] Thus, when performing distraction osteogenesis, firstly, the skin is cut open during the operation, and the bone is cut at a suitable position; the distraction screw 3 is rotated to adjust the distraction device 1 21 and the distraction device 2 22 to the closest spatial relative position, forming a distraction osteogenesis mechanical device combination of "fixation device 1 11-distraction device 1 21-distraction screw 3-distraction device 2 22-fixation device 2 12", and the control device is arranged at the end of the distraction screw 3. The fixing device 1 11 and the fixing device 2 12 are respectively placed at both ends of the osteotomy line and fixed to the two ends of the osteotomy line using medical screws, and then the skin incision is tightly sutured to complete the installation of the distraction device.

[0026] 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 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. The shortcomings of the conventional distraction osteogenesis device, such as the inaccuracy and unevenness of manual adjustment, the handle of the distractor exposed outside the skin, and the long hospitalization time of the patient, are avoided.

[0027] 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.

[0028] In order to accurately control the osteogenesis distraction process, refer to Figure 1 , Figure 2 and Figure 3 , an annular spacing sensor 5 is provided between the adjacent ends of the tensioning device 1 21 and the tensioning device 2 22, the tensioning screw 3 passes through the hollow part of the spacing sensor 5, and at least four sensing points are provided on each of the two spacing sensors 5, and the corresponding two sensing points on the two spacing sensors 5 are used to monitor the spacing between the tensioning device 1 21 and the tensioning device 2 22 at that location. Specifically, four sensing points, A1 to A4 and B1 to B4, are symmetrically provided on the two spacing sensors 5, respectively, wherein A1 and B1, A2 and B2, A3 and B3, A4 and B4 can respectively sense the distance between the tensioning device 1 21 and the tensioning device 2 22 in real time.

[0029] Reference Figure 5 and Figure 6 , the control process of the above chip integration system is: S1. Respectively receive the wireless signal command sent by the computer system and the wired sensing signal sent by the distance sensor 5.

[0030] S2. Based on the spacing data between the multiple sensing points between the two spacing sensors 5, determine whether the fixing device 1 11 and the fixing device 2 12 are loose. Specifically, if the hexahedron formed 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 axis of the tensioning device 1 21 and the tensioning device 2 22, indicating that the positions of the fixing device 1 11 and the fixing device 2 12 are offset, and it is determined that the fixing screws of the fixing device 1 11 and the fixing device 2 12 may be loose.

[0031] S3. Based on the spacing data between multiple sensing points between two spacing sensors 5, the central long axis of the hexahedron formed by the spacing segments of multiple groups of relative sensing points is determined, and the real-time direction of the tension between the tension device 1 21 and the tension 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, so as to reduce the torsional force generated on the fixing device 1 11 and the fixing device 2 12; specifically, when the spacing 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 tension device 2 22 is moved, and the hexahedron formed by the spacing segments is adjusted by changing the position direction of the support force of the shock-absorbing spring 41 so that its central long axis is parallel to the central long axis of the tension device 1 21 and the tension device 2 22, so as to reduce the torsional force generated on the fixing device 1 11 and the fixing device 2 12.

[0032] S4. Based on the stretching data model inside the chip integrated system, the stretching instruction sent by the wireless signal of the comprehensive 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 are generated to generate a recommended optimal stretching speed instruction signal.

[0033] S5. The recommended stretching speed signal is fed back to the computer system via wireless means for clinical physicians to make reference for decision.

[0034] 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.

[0035] 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 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.

[0036] In order to realize convenient rotation control of the shock absorbing spring 41, refer to Figure 7 and Figure 8 A control box 62 is provided at one end of the second tensioning device 22 away from the first tensioning device 21, the control device is installed in the control box 62, and the control box 62 is fixedly installed on the second fixing device 12. The output end of the electric motor 61 is coaxially fixedly connected with a rotating shaft 63 extending out of the control box 62, and a positioning groove 31 is provided on the end surface of the tensioning screw 3 to be plugged and matched with the rotating shaft 63. A bottom bracket 42 is provided on the control box 62 and is sleeved outside the rotating shaft 63. The damping spring 41 is provided between the bottom bracket 42 and the second tensioning device 22, and one end of the damping spring 41 is fixedly connected to the bottom bracket 42.

[0037] 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 movable 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 movable 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 on 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.

[0038] 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 bracket 42; When the clutch sleeve 7 is close to the tensioning device 22, the clutch sleeve 7 is connected to the tensioning screw 3; 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.

[0039] Among them, refer to Figure 7 and Figure 8The 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 arranged 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.

[0040] The clutch sleeve 7 is provided with a plurality of tooth grooves 71 at both axial ends of the rotating shaft 63 , and the tension screw 3 and the end of the bottom bracket 42 close to the clutch sleeve 7 are fixedly connected with a plurality of tooth protrusions 72 meshing with the corresponding tooth grooves 71 .

[0041] In this way, in the initial state, the reset 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 22, and the multiple tooth protrusions 72 on the tensioning screw 3 are embedded in the multiple tooth grooves 71 on the adjacent end surface of the clutch sleeve 7, so that the clutch sleeve 7 and the tensioning screw 3 can be connected synchronously; 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 by virtue 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.

[0042] 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 to energize and magnetize, and attract the ferromagnetic part 82 on the clutch sleeve 7, so that the clutch sleeve 7 overcomes the compression deformation force of the reset spring 83 and approaches the bottom bracket 42, and then the multiple tooth protrusions 72 on the bottom bracket 42 are embedded in 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 bottom bracket 42 is driven to rotate slowly, thereby driving the compression spring to rotate between the bottom bracket 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, thereby adjusting the hexahedron surrounded by the spacing line segments by changing the position direction of the supporting force of the damping spring 41, so that the central long axis of the hexahedron is parallel to the central long axis of the tensioning device 1 21 and the tensioning device 22, so as to reduce the torsional force generated on the fixing device 1 11 and the fixing device 2 12.

[0043] 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 , so as to effectively protect the internal adjustment mechanism and maintain the stability of the second tensioning device 22 .

[0044] The implementation principle of a chip remote-controlled bone distraction osteogenesis system in the embodiment of the present application is: During distraction osteogenesis, the skin is first cut open during the operation, and the bone is cut at a suitable position; the distraction screw 3 is rotated to adjust the distraction device 1 21 and the distraction device 2 22 to the closest relative spatial position, forming a distraction osteogenesis mechanical device combination of "fixation device 1 11-distraction device 1 21-distraction screw 3-distraction device 2 22-fixation device 2 12", and the control device is set at the end of the distraction screw 3. Fixation device 1 11 and fixation device 2 12 are respectively placed at both ends of the osteotomy line and fixed to the two ends of the osteotomy line using medical screws, and then the skin incision is tightly sutured to complete the installation of the distraction device.

[0045] 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.

[0046] Furthermore, by arranging two spacing sensors 5 between the tensioning device 1 21 and the tensioning device 2 22, and arranging 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 restored to be 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.

[0047] 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 embodiments of the present invention.

Claims

1. A chip remote-controlled bone distraction osteogenesis system, comprising a fixing device 1, a fixing device 2, a distraction device 1 and a distraction device 2, 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 is used to remotely control the working state of the control device.

2. A chip remote-controlled bone distraction osteogenesis system according to claim 1, characterized in that: A stretching screw is inserted into the second stretching device, and the control device is arranged 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 stretching screw rod which is away from the control device is threadedly connected with a stretching device.

3. A chip remote-controlled bone distraction osteogenesis system according to claim 2, characterized in that: A damping spring sleeved outside the stretching screw is arranged between the control device and the second stretching device.

4. A chip remote-controlled bone distraction osteogenesis system according to claim 3, characterized in that: 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 respectively provided on the two spacing sensors, and the corresponding two sensing points on the two spacing sensors are used to monitor the spacing between the tensioning device 1 and the tensioning device 2 at that location.

5. A chip remote-controlled bone distraction osteogenesis system according to claim 4, characterized in that: The control device comprises: An electric motor, used for driving the tension screw to rotate; A chip integrated system, used for receiving the stretching instruction wireless signal sent by the computer system, receiving the wired signal sent by the spacing sensor, and controlling the working state of the electric motor; A signal converter, used for converting the electrical signal of the chip integrated system into a force signal and transmitting the force signal to the electric motor; Micro power supply for providing electrical power.

6. A chip remote-controlled bone distraction osteogenesis system according to claim 5, characterized in that: The control process of the chip integration system is as follows: S1. Respectively receive wireless signal instructions sent by the computer system and wired sensing signals sent by the spacing sensor; S2. Based on the distance data between the multiple sensing points 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, determine the central long axis of the hexahedron surrounded by the spacing line segments of the multiple sets of relative sensing points, and determine the real-time direction of the tension between the tension device 1 and the tension device 2; according to the direction of the tension, correct the direction of the shock absorbing spring through the control device to adapt to the direction of the tension, thereby reducing the torsional force generated on the fixing device 1 and the fixing device 2; S4. Based on the stretching data model inside the chip integrated system, a stretching command signal for the optimal stretching speed is generated based on the stretching data model inside the chip integrated system, according to the stretching command sent by the wireless signal of the computer system, the distance between the current stretching device 1 and the stretching device 2, the actual stretching speed of the previous day and other parameters; S5. Feedback the recommended stretching speed signal to the computer system wirelessly for clinical physicians’ decision-making reference; S6. The clinician selects the stretching speed recommended by the chip integration system or set by himself in the computer system, and sends the instruction to the chip integration system.

7. A chip remote-controlled bone distraction osteogenesis system according to claim 6, 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 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.

8. A chip remote-controlled bone distraction osteogenesis system according to any one of claims 5 to 7, 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 with a rotating shaft, the end surface of the tensioning screw is provided with a positioning groove adapted for plugging with the rotating shaft, a base bracket which is sleeved outside the rotating shaft with a gap is provided on the control box, the shock absorbing spring is provided between the base bracket and the second tensioning device and one end of the shock absorbing spring is fixedly connected to the base bracket; The rotating shaft and the movable sleeve are provided with a clutch 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 bracket; 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.

9. A chip remote-controlled bone distraction osteogenesis system according to claim 8, characterized in that: The adjustment mechanism includes an electromagnet installed on the base and a ferromagnetic member installed on the clutch sleeve. A reset spring is arranged between the clutch sleeve and the base. When the reset spring is in an initial state, the clutch sleeve is movably connected with the tension screw.

10. A chip remote-controlled bone distraction osteogenesis system according to claim 9, characterized in that: The clutch sleeve is provided with a plurality of tooth grooves at both ends of the shaft along 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.

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