Electric intelligent orthopedic external fixator

Abstract

The present application relates to an electric intelligent orthopedic external fixator, comprising a telescopic mechanism, an upper ring, a lower ring, a drive mechanism, and a control mechanism, wherein the telescopic mechanism comprises a sleeve and a screw rod; one end of the sleeve is hinged to the upper ring, and the other end of the sleeve is sleeved on the screw rod; an end of the screw rod away from the sleeve is hinged to the lower ring; the screw rod is provided with an adjustment nut gear; the drive mechanism comprises a motor, an output shaft, and a circuit board; the motor drives the output shaft; the output shaft is provided with a driving gear; the driving gear is engaged with the adjustment nut gear; the circuit board is connected to the motor; the control mechanism is disposed on the upper ring, and the control mechanism is connected to the drive mechanism, wherein the screw rod is provided with a target object; the drive mechanism further comprises a sensor; the circuit board is connected to the sensor; the sensor detects the target object. The present application provides the target object on the screw rod for detection by the sensor, thereby directly obtaining the telescopic length. In addition, the sensor and the motor are directly controlled by means of the circuit board, which greatly reduces the number of cables between the control mechanism and the drive mechanism.

Description

Electric intelligent orthopedic external fixator Technical Field

[0001] This invention relates to the field of medical rehabilitation and correction technology, and in particular to an electric intelligent orthopedic external fixator. Background Technology

[0002] Electric intelligent orthopedic external fixators use bone pins or nails to locate and fix fractures outside the skin. With the continuous development of engineering machinery, traditional manually adjustable external fixators are gradually being replaced by electric external fixators.

[0003] While electrically powered intelligent orthopedic external fixators offer more convenient and intelligent adjustments, the addition of various electronic control devices and the cable connections between these devices complicates the overall system structure. This structural complexity increases the difficulty of installation and subsequent adjustments. Furthermore, since the external fixator is placed on the human body, its complexity increases its weight, and the various cable connections can interfere with and affect the patient's movements, thereby impacting treatment outcomes.

[0004] It should be noted that the information disclosed in the background section above is only used to enhance the understanding of the background of this disclosure, and therefore may include information that does not constitute prior art known to those skilled in the art. Summary of the Invention

[0005] In view of the shortcomings of the prior art, the purpose of this invention is to provide an electric intelligent orthopedic external fixator to simplify system design.

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

[0007] An electric intelligent orthopedic external fixator, comprising a telescopic mechanism, an upper ring, a lower ring, and a drive mechanism;

[0008] The telescopic mechanism includes a sleeve and a screw; one end of the sleeve is hinged to the upper ring, and the other end of the sleeve is sleeved on the screw; the end of the screw away from the sleeve is hinged to the lower ring; an adjusting nut gear is provided on the screw;

[0009] The drive mechanism includes a motor and an output shaft; the motor drives the output shaft; a drive gear is provided on the output shaft; the drive gear meshes with the adjusting nut gear.

[0010] The screw has a target object mounted on it; the drive mechanism includes a sensor; and the sensor detects the target object.

[0011] A further technical solution is that the inner wall of the connecting hole of the drive gear protrudes to form a triangular stop that is high in the middle and low on both sides; a first flat part is provided on the output shaft; the triangular stop abuts against the flat part.

[0012] A further technical solution is that two sensors are provided, and the two sensors are arranged at 90° around the axis of the screw; the target is set on the adjusting nut gear.

[0013] A further technical solution is that the drive mechanism also includes a base; the motor is mounted on the base; the base extends with at least two pins; the ends of the pins have threaded connection holes for connecting to the outer casing; the outer casing pins and the base hold the screw.

[0014] A further technical solution is that a limiting groove is formed at one end of the sleeve near the screw; the pin passes over the sleeve along the limiting groove.

[0015] A further technical solution is that the adjusting nut gear includes a driven gear and a driven nut; the driven gear and the driven nut are coaxially connected; the driven gear is rotatably connected to the sleeve, and the driven nut is threadedly connected to the screw.

[0016] A further technical solution is that six telescopic mechanisms are provided, and there is an acute angle between adjacent telescopic mechanisms.

[0017] A further technical solution is that a control mechanism is also provided on the upper ring; the drive mechanism includes a circuit board; the circuit board is connected to the motor and the sensor; and the control mechanism is connected to the circuit board.

[0018] A further technical solution is that a first bolt, a second bolt, and a third bolt are provided on the upper ring, the first bolt and the second bolt passing through the upper ring in the same direction; the third bolt connects both the first bolt and the second bolt, and the control mechanism is connected to the head of the first bolt; the control mechanism and the third bolt are located on opposite sides of the upper ring.

[0019] A further technical solution is that the drive mechanism further includes a housing; the motor, the drive gear, and the adjusting nut gear are all disposed within the housing; a first partition cavity is provided within the housing; and the cable connecting the motor passes through the first partition cavity.

[0020] The beneficial technical effects of the present invention are as follows:

[0021] (1) The electric intelligent orthopedic external fixator of this invention is equipped with a motor, which drives the active gear to rotate, thereby rotating the adjusting nut gear to extend or shorten the telescopic mechanism, realizing the electric control of the fixed length of the electric intelligent orthopedic external fixator. Electric control operation is more convenient, eliminating the need for complex mechanical operations and improving operational efficiency. In addition, a sensor is set in the drive mechanism, and the target object for the sensor to detect is set on the screw. When the screw rotates to extend or extend into the sleeve, the target object rotates synchronously with the screw and is detected by the sensor. That is, through the target object, the sensor can accurately sense the number of rotations of the screw. The high-precision sensor can provide more accurate and reliable data, realizing more refined control to precisely adjust the length of the telescopic mechanism. In actual use, the stroke of the telescopic rod can be preset, and the sensor can detect whether the telescopic rod has extended or shortened to the limit length, avoiding the screw from jamming and extending the service life of the telescopic mechanism. By setting up a high-precision sensor, the intelligence level of the electric intelligent orthopedic external fixator is improved, providing a smoother and more natural user experience.

[0022] (2) Further, the driving gear contacts the first flat part through the triangular stop, that is, around the top of the protrusion of the triangular stop, the driving gear can swing to the lower sides of the triangular stop protrusion. When the drive mechanism is installed on the telescopic mechanism, the driving gear and the driven gear are not always aligned between their teeth to engage. At this time, swinging the driving gear can quickly adjust the angle of the driving gear so that the teeth of the driving gear are aligned with the tooth gap of the driven gear, and the driving gear and the driven gear engage. Even if the electric intelligent orthopedic external fixator is installed on the patient and the driven gear is inconvenient to adjust, the drive mechanism can be installed quickly without affecting the treatment effect. In addition, since the sensor is set on the circuit board and the target is set on the gear on the adjusting nut, the rotation of the driving gear when installing the drive mechanism will not affect the position of the sensor and the target, thus avoiding affecting the detection accuracy of the telescopic mechanism by the drive mechanism.

[0023] (3) Furthermore, a clearance groove is opened on the circuit board, and the telescopic mechanism passes through the clearance groove so that the sensor on the circuit board can approach and be set directly above the target, further ensuring the detection accuracy of the sensor. Attached Figure Description

[0024] Figure 1 shows a three-dimensional structural diagram of the electric intelligent orthopedic external fixator in Embodiment 1 of the present invention.

[0025] Figure 2 shows a three-dimensional structural diagram of the telescopic mechanism and the drive mechanism in the electric intelligent orthopedic external fixator according to Embodiment 1 of the present invention.

[0026] Figure 3 shows a vertical cross-sectional view of the telescopic mechanism and drive mechanism in the electric intelligent orthopedic external fixator according to Embodiment 1 of the present invention.

[0027] Figure 4 shows a schematic diagram of the assembly structure of the active gear, base and sleeve in the electric intelligent orthopedic external fixator in Embodiment 1 of the present invention.

[0028] Figure 5 shows a vertical cross-sectional view of the electric intelligent orthopedic external fixator in Embodiment 2 of the present invention.

[0029] Figure 6 shows a cross-sectional view of the telescopic component mechanism in the electric intelligent orthopedic external fixator according to Embodiment 3 of the present invention.

[0030] Figure 7 shows a schematic diagram of the internal structure of the junction box in the electric intelligent orthopedic external fixator in Embodiment 3 of the present invention.

[0031] The following labels in the attached diagram represent: 1. Control mechanism; 11. Main unit; 12. Junction box; 121. Second baffle; 122. Second partition cavity. 2. Upper ring; 3. Lower ring; 4. Telescopic mechanism; 41. Sleeve; 411. Limiting groove; 412. Limiting ring; 42. Screw; 43. Adjusting nut gear; 431. Target object; 432. Driven gear; 433. Driven nut; 5. Drive mechanism; 51. Motor; 52. Circuit board; 521. Sensor; 522. Alternating groove; 53. Reducer; 531. Output shaft; 532. Drive gear; 533. Triangular stop; 534. First flat part; 54. Base; 541. Pin; 55. Threaded connection hole; 6. Cable; 71. First bolt; 72. Second bolt; 73. Third bolt; 8. Housing; 81. First baffle; 811. First partition cavity; 82. Sealing ring; 83. Sealing ring. Detailed Implementation

[0032] To make the objectives, technical solutions, and advantages of this invention clearer, the device proposed by this invention will be further described in detail below with reference to the accompanying drawings and specific embodiments. The advantages and features of this invention will become clearer from the following description. It should be noted that the drawings are in a very simplified form and use non-precise proportions, only for the purpose of conveniently and clearly illustrating the embodiments of this invention. Please refer to the accompanying drawings to make the objectives, features, and advantages of this invention more apparent and understandable. It should be understood that the structures, proportions, sizes, etc., depicted in the accompanying drawings are only for the purpose of assisting those skilled in the art in understanding and reading the content disclosed in the specification, and are not intended to limit the implementation conditions of this invention. Therefore, they do not have substantial technical significance. Any modifications to the structure, changes in proportions, or adjustments to the size, without affecting the effects and objectives achieved by this invention, should still fall within the scope of the technical content disclosed in this invention.

[0033] In the description of this invention, the terms "center," "longitudinal," "lateral," "length," "width," "thickness," "upper," "lower," "front," "rear," "left," "right," "top," "bottom," "inner," "outer," "axial," "radial," and "circumferential" indicate the orientation or positional relationship based on the orientation or positional relationship shown in the accompanying drawings. They are used only for the convenience of describing this invention and simplifying the description, and are not intended to indicate or imply that the device or element referred to must have a specific orientation, or be constructed and operated in a specific orientation. Therefore, they should not be construed as limitations on this invention.

[0034] Example 1

[0035] Figure 1 shows a three-dimensional structural diagram of the electric intelligent orthopedic external fixator of the present invention. Figure 2 shows a three-dimensional structural diagram of the telescopic mechanism and drive mechanism in the electric intelligent orthopedic external fixator of the present invention. Figure 3 shows a vertical cross-sectional structural diagram of the telescopic mechanism and drive mechanism in the electric intelligent orthopedic external fixator of the present invention. Referring to Figures 1, 2, and 3, the electric intelligent orthopedic external fixator includes a telescopic mechanism 4, an upper ring 2, a lower ring 3, a drive mechanism 5, and a control mechanism 1. The telescopic mechanism 4 includes a sleeve 41 and a screw 42. One end of the sleeve 41 is hinged to the upper ring 2, and the other end of the sleeve 41 is fitted onto the screw 42. The end of the screw 42 away from the sleeve 41 is hinged to the lower ring 3. Bone pins are respectively provided on the upper ring 2 and the lower ring 3. The position between the upper ring 2 and the lower ring 3 is adjusted by the extension and retraction of the telescopic assembly. An adjusting nut gear 43 is provided on the screw 42. The drive mechanism 5 includes a motor 51, an output shaft 531, and a circuit board 52. The motor 51 drives the output shaft 531. A drive gear 532 is mounted on the output shaft 531. Specifically, the motor 51 is connected to the reducer 53, and the reducer 53's shaft serves as the output shaft 531. The drive gear 532 meshes with the adjusting nut gear 43. The motor 51 drives the drive gear 532 to rotate, which in turn rotates the adjusting nut gear 43, thereby extending or shortening the telescopic mechanism 4 and achieving electric control of the fixed length of the electric intelligent orthopedic external fixator. Electric control operation is more convenient, eliminating the need for complex mechanical operations and improving operational efficiency. The control mechanism 1 is mounted on the upper ring 2 and is connected to the drive mechanism 5.

[0036] The screw 42 has a target object 431 mounted on it. The drive mechanism 5 includes a sensor 521. The sensor 521 detects the target object 431. When the motor 51 drives the screw 42 to rotate, the sensor 521 can accurately obtain the number of rotations of the screw 42 through the target object 431, thereby obtaining the real-time length of the telescopic mechanism 4 and improving the intelligence of the electric control. The circuit board 52 is connected to the motor 51. The circuit board 52 is also connected to the sensor 521. The sensor 521 and the motor 51 are directly controlled by the circuit board 52 without the need for a control structure. At this time, the control mechanism 1 only needs to send commands to the circuit board 52, which greatly reduces the number of cables 6 between the control mechanism 1 and the drive mechanism 5, simplifies the electric intelligent orthopedic external fixator system, reduces the negative impact on patients after the electricization of the electric intelligent orthopedic external fixator, and improves the treatment effect.

[0037] Figure 4 shows a schematic diagram of the assembly structure of the active gear, base, and sleeve in the electric intelligent orthopedic external fixator of the present invention. Referring to Figures 1 and 4, the inner wall of the connecting hole of the active gear 532 protrudes, forming a triangular stop 533 that is high in the middle and low on both sides. A first flat position 534 is provided on the output shaft 531. The triangular stop 533 abuts against the flat position. That is, around the top of the protrusion of the triangular stop 533, the active gear 532 can swing to the lower sides of the protrusion of the triangular stop 533. When the drive mechanism 5 is installed on the telescopic mechanism 4, the active gear 532 and the driven gear 432 are not always aligned between their teeth for insertion and meshing. At this time, swinging the active gear 532 can quickly adjust the angle of the active gear 532 so that the teeth of the active gear 532 align with the tooth gap of the driven gear 432, and the active gear 532 and the driven gear 432 mesh. Even if the electric intelligent orthopedic external fixator is placed on the patient and the driven gear 432 is inconvenient to adjust, the drive mechanism 5 can be quickly installed without affecting the treatment effect. In addition, since the sensor 521 is mounted on the circuit board 52 and the target 431 is mounted on the gear on the adjusting nut, the rotation of the drive gear 532 when the drive mechanism 5 is installed will not affect the position of the sensor 521 and the target 431, thus avoiding affecting the detection accuracy of the drive mechanism 5 on the telescopic mechanism 4.

[0038] Preferably, the adjusting nut gear 43 includes a driven gear 432 and a driven nut 433. The driven gear 432 and the driven nut 433 are coaxially connected, and the driven nut 433 is fixed to the driven gear 432 by a screw. The driven gear 432 is rotatably connected to the sleeve 41, and the driven nut 433 is threadedly connected to the screw 42. A limit ring 412 is engaged on the sleeve 41, and the limit ring 412 is disposed between the driven gear 432 and the driven nut 433 to limit the position of the adjusting nut gear 43. The driving gear 532 drives the driven gear 432 to rotate, and the driven gear 432 drives the driven nut 433 to rotate synchronously, thereby driving the screw 42 to extend into or out of the sleeve 41.

[0039] More preferably, six telescopic mechanisms 4 are provided, with acute angles between adjacent telescopic mechanisms 4. Specifically, the six telescopic mechanisms 4 can form a three-dimensional spatial structure, which can more effectively resist forces from different directions and enhance the overall rigidity and stability. Adjusting the length of any one of the telescopic mechanisms 4 can change the position between the upper ring 2 and the lower ring 3 to treat different conditions.

[0040] Please refer to Figures 1, 3, and 4. Two sensors 521 are configured, positioned at 90° angles around the axis of the screw 42. The target object 431 is mounted on the adjusting nut gear 43, surrounding the screw 42. As the adjusting nut gear 43 drives the screw 42 to rotate, the target object 431 also rotates accordingly. The rotation angle of the target object 431 corresponds one-to-one with the rotation angle of the screw 42, eliminating errors caused by the target object 431 indirectly measuring the rotation angle of the screw 42 and reducing the accuracy requirements of related components.

[0041] In this embodiment, sensor 521 can be a Hall element, and the target object 431 is a rotating disk. As the rotating disk rotates with screw 42, the magnetic field generated by the disk also changes. When the magnetic field passes through the Hall element, a potential difference signal is generated, the magnitude of which is linearly related to the displacement of the rotating disk. By using two Hall elements, the position and motion state of an object can be accurately measured.

[0042] Preferably, the sensor 521 is mounted on the circuit board 52. A recessed groove 522 is formed on the circuit board 52, through which the telescopic mechanism 4 passes. This allows the sensor 521 on the circuit board 52 to be close to and positioned directly above the target object 431, further ensuring the detection accuracy of the sensor 521.

[0043] Referring to Figures 1, 3, and 4, the drive mechanism 5 also includes a base 54. A motor 51 is mounted on the base 54. At least two pins 541 extend from the base 54. The ends of the pins 541 have threaded connection holes 55 for connecting to the housing 8. The housing 8, pins 541, and base 54 hold the screw 42. Specifically, a bolt passes through the housing 8 and is screwed into the threaded connection hole 55, connecting the housing 8 and the threaded connection hole 55, so that the housing 8, in conjunction with the base 54, tightly holds the sleeve 41, thus fixing the drive mechanism 5 to the telescopic mechanism 4.

[0044] Preferably, a limiting groove 411 is provided at one end of the sleeve 41 near the screw 42, and the pin 541 passes over the sleeve 41 along the limiting groove 411. The limiting groove 411 further fixes the base 54 on the sleeve 41, improving the stability of the drive mechanism 5 when it is fixed on the telescopic mechanism 4.

[0045] More preferably, the sleeve 41 and the upper ring 2, and the screw 42 and the lower ring 3 are connected by Hooke hinges. The Hooke hinge allows for a certain angular deviation between the two connected parts, thereby improving the flexibility of the electric intelligent orthopedic external fixator. At the same time, the Hooke hinge has self-locking properties, preventing deformation of the electric intelligent orthopedic external fixator during treatment, thus ensuring the therapeutic effect of the electric intelligent orthopedic external fixator.

[0046] The specific workflow of this embodiment is as follows:

[0047] The operator sends commands to the circuit board 52 via the control mechanism 1. The circuit board 52 drives the drive gear 532 to rotate via the motor 51, which in turn drives the driven gear 432 and the driven nut 433 to rotate, extending the screw 42 out of or into the sleeve 41. During this process, the sensor 521 continuously detects the calibration object to obtain the number of rotations of the screw 42, and thus obtains the length of the telescopic mechanism 4. The electric intelligent orthopedic external fixator is then placed on the patient's limb until the upper ring 2 and lower ring 3 reach the predetermined positions. Bone pins are then fixed to the upper ring 2 and lower ring 3 and inserted.

[0048] When the drive mechanism 5 needs to be replaced during orthopedic external fixation treatment, remove the screws screwed into the threaded connection hole 55, and then remove the drive mechanism 5. Prepare a new drive mechanism 5, move the drive mechanism 5 to the installation position of the telescopic mechanism 4, rotate the drive gear 532 until the teeth of the drive gear 532 align with the tooth gap of the driven gear 432, push the drive mechanism 5 in until the drive gear 532 and the driven gear 432 mesh. Then, pass the screw through the housing 8 and screw it into the threaded connection hole 55 to fix the drive mechanism 5 and install the housing 8, completing the replacement of the drive mechanism 5.

[0049] Example 2

[0050] Figure 5 shows a vertical cross-sectional view of the electric intelligent orthopedic external fixator in Embodiment 2 of the present invention. Referring to Figure 5, based on Embodiment 1, Embodiment 2 discloses an electric intelligent orthopedic external fixator. A first bolt 71, a second bolt 72, and a third bolt 73 are arranged on the upper ring 2. The first bolt 71 and the second bolt 72 pass through the upper ring 2 in the same direction. The third bolt 73 connects both the first bolt 71 and the second bolt 72. A control mechanism 1 is connected to the head of the first bolt 71. The control mechanism 1 and the first bolt 71 can be connected by screws. The control mechanism 1 and the third bolt 73 are located on opposite sides of the upper ring 2.

[0051] Specifically, the upper ring 2 and lower ring 3 of the electric intelligent orthopedic external fixator have multiple holes for connecting the telescopic mechanism 4. The first bolt 71 and the second bolt 72 pass through the holes in the upper ring 2 and are then connected by a third bolt 73. The first bolt 71, the second bolt 72, and the third bolt 73 hold the upper ring 2 in place, thus connecting the control mechanism 1 and the upper ring 2. In this connection structure, the second bolt 72 only serves a supporting function. When the specifications of the upper ring 2 change, causing a change in the distance between adjacent holes, the position of the second bolt 72 can be adjusted, as long as the second bolt 72 still supports the control mechanism 1. That is, the control mechanism 1 can be flexibly installed on upper rings 2 of different specifications without replacing parts, thereby reducing component costs.

[0052] Example 3

[0053] Figure 6 shows a cross-sectional view of the telescopic component mechanism in the electric intelligent orthopedic external fixator according to Embodiment 3 of the present invention. Referring to Figures 2 and 6, based on Embodiments 1 and 2, Embodiment 3 discloses an electric intelligent orthopedic external fixator, whose drive mechanism 5 further includes a housing 8. The motor 51, drive gear 532, and adjusting nut gear 43 are all disposed within the housing 8. The housing 8 is screwed to the base 54. The housing 8 can be disassembled, with adjacent components of the housing 8 joined together via a stop structure. The disassembled housing 8 reduces the volume of individual components, making transportation and storage more convenient. Simultaneously, when internal components of the housing 8 are damaged, a single component can be removed from the housing 8, making maintenance and repair of the orthopedic fixation device more convenient, and allowing technicians easier access to the internal components for inspection and repair. Furthermore, the housing 8 is joined via a stop structure, which, through physical isolation, effectively prevents water penetration, reduces the impact of water on the internal electronic components of the housing 8, and ensures the waterproof performance of the housing 8.

[0054] In this embodiment, a first baffle 81 is provided inside the outer casing 8, and the first baffle 81 cooperates with the outer casing 8 to form a first partition cavity 811. The cable 6 connecting the motor 51 passes through the first partition cavity 811 before connecting to the electronic components inside the outer casing 8. The first partition cavity 811 can effectively isolate moisture entering the outer casing 8 along the cable 6, preventing moisture from affecting the electronic components inside the outer casing 8. The first partition cavity 811 can be filled with sealant, further enhancing the waterproof performance of the outer casing 8. The filled sealant also fixes the position of the cable 6, especially the position of the cable 6 sheath. This reduces the displacement between the cable 6 sheath and the cable 6 core, avoiding the safety hazard caused by exposed cable cores.

[0055] Preferably, a sealing ring 83 is provided between the cable 6 and the outer casing 8. The sealing ring 83 is fitted onto the cable 6. The sealing ring 83 enhances the sealing performance between the cable 6 and the outer casing 8. The sealing ring 83 is provided with at least two annular flanges, one annular flange is provided on the inner side of the outer casing 8, and the other annular flange is provided on the outer side of the outer casing 8. The annular flanges cooperate with each other to fix the position between the sealing ring 83 and the outer casing 8.

[0056] More preferably, the telescopic mechanism 4 passes through the drive mechanism 5, so the outer casing 8 also partially encloses the telescopic mechanism 4. Sealing rings 82 are respectively provided between the outer casing 8 and the sleeve 41, and between the outer casing 8 and the driven nut 433. The sealing rings 82 prevent moisture from entering the outer casing 8, thus improving the waterproof performance of the outer casing 8.

[0057] Figure 7 shows a schematic diagram of the internal structure of the junction box in the electric intelligent orthopedic external fixator according to Embodiment 3 of the present invention. Referring to Figure 7, the control mechanism 1 is divided into a main unit 11 and a junction box 12, which are connected or plugged into each other using fasteners. The fasteners can be bolts, screws, rivets, etc. The location where the cable 6 enters the control mechanism 1 is most susceptible to moisture penetration. By dividing the control mechanism 1 into the main unit 11 and the junction box 12, even if moisture seeps in along the cable 6, it will only enter the junction box 12 and will not affect the electronic components inside the main unit 11.

[0058] Preferably, a second baffle 121 is provided inside the junction box 12, and the second baffle 121 cooperates with the junction box 12 to form a second isolation cavity 122. The cable 6 extending into the junction box 12 first passes through the second isolation cavity 122. The second isolation can effectively isolate moisture entering the junction box 12.

[0059] More preferably, the second partition cavity 122 can be filled with sealant to further enhance the waterproof performance of the junction box 12. The sealant also secures the cable 6, especially its sheath. This reduces displacement between the cable sheath and the cable core, preventing exposed cores and potential safety hazards. Additionally, a sealing ring 83 can be installed between the cable 6 and the junction box 12 to further enhance the waterproof performance between them.

[0060] The technical features of the above embodiments can be combined in any way. For the sake of brevity, not all possible combinations of the technical features in the above embodiments are described. However, as long as there is no contradiction in the combination of these technical features, they should be considered to be within the scope of this specification.

[0061] The embodiments described above are merely illustrative of several implementations of the present invention, and while the descriptions are relatively specific and detailed, they should not be construed as limiting the scope of the invention patent. It should be noted that those skilled in the art can make various modifications and improvements without departing from the concept of the present invention, and these all fall within the protection scope of the present invention. Therefore, the protection scope of this invention patent should be determined by the appended claims.

Claims

1. An electric intelligent orthopedic external fixator, characterized in that, The electric intelligent orthopedic external fixator includes a telescopic mechanism, an upper ring, a lower ring, and a drive mechanism; The telescopic mechanism includes a sleeve and a screw; one end of the sleeve is hinged to the upper ring, and the other end of the sleeve is sleeved on the screw; the end of the screw away from the sleeve is hinged to the lower ring; an adjusting nut gear is provided on the screw; The drive mechanism includes a motor and an output shaft; the motor drives the output shaft; a drive gear is provided on the output shaft; the drive gear meshes with the adjusting nut gear. The screw has a target object mounted on it; the drive mechanism includes a sensor; and the sensor detects the target object.

2. The electric intelligent orthopedic external fixator as described in claim 1, characterized in that: The inner wall of the connecting hole of the drive gear protrudes to form a triangular stop that is high in the middle and low on both sides; a first flat part is provided on the output shaft; the triangular stop abuts against the flat part.

3. The electric intelligent orthopedic external fixator as described in claim 1, characterized in that: Two sensors are provided, and the two sensors are arranged at 90° around the axis of the screw; the target is set on the adjusting nut gear.

4. The electric intelligent orthopedic external fixator as described in claim 1, characterized in that: The drive mechanism also includes a base; the motor is mounted on the base; the base extends with at least two pins; the ends of the pins have threaded connection holes for connecting to the housing; the housing pins and the base hold the screw.

5. The electric intelligent orthopedic external fixator as described in claim 4, characterized in that: A limiting groove is formed at one end of the sleeve near the screw; the pin passes over the sleeve along the limiting groove.

6. The electric intelligent orthopedic external fixator as described in claim 1, characterized in that: The adjusting nut gear includes a driven gear and a driven nut; the driven gear and the driven nut are coaxially connected; the driven gear is rotatably connected to the sleeve, and the driven nut is threadedly connected to the screw.

7. The electric intelligent orthopedic external fixator as described in claim 1, characterized in that: The telescopic mechanism is provided in six parts, and there is an acute angle between adjacent telescopic mechanisms.

8. The electric intelligent orthopedic external fixator as described in claim 1, characterized in that: The upper ring is also provided with a control mechanism; the drive mechanism includes a circuit board; the circuit board is connected to the motor and the sensor; the control mechanism is connected to the circuit board.

9. The electric intelligent orthopedic external fixator as described in claim 8, characterized in that: The upper ring is provided with a first bolt, a second bolt, and a third bolt. The first bolt and the second bolt pass through the upper ring in the same direction. The third bolt connects both the first bolt and the second bolt. The control mechanism is connected to the head of the first bolt. The control mechanism and the third bolt are located on opposite sides of the upper ring.

10. The electric intelligent orthopedic external fixator as described in claim 1, characterized in that: The drive mechanism also includes a housing; the motor, the drive gear, and the adjusting nut gear are all disposed within the housing; a first partition cavity is provided within the housing; the cable connecting the motor passes through the first partition cavity.

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