Automatic device for femoral fracture reduction

Abstract

The invention discloses an automatic device for femoral fracture reduction, and belongs to the technical field of long bone fracture reduction, the automatic device comprises a base module, a near-end fixing module, a far-end fixing rotating module and a far-end three-dimensional moving module, the base module comprises a box body, a supporting piece and a device plate with a rectangular hole, the device plate is arranged on the box body through a supporting piece, the near-end fixing module is located at the front end of the device plate, the far-end three-dimensional moving module is located on the box body, and the far-end fixing rotating module penetrates through a rectangular hole of the device plate to be fixed to the far-end three-dimensional moving module. The far-end fixed rotating module comprises a far-end main body assembly, a far-end support assembly and an adjusting table, the far-end main body assembly is arranged on the far-end three-dimensional moving module, the adjusting table is arranged in the far-end main body assembly, and the far-end support assembly is arranged on a far-end main body support. The device can adapt to different femoral fracture types and has the advantages of being compact in structure, convenient and fast to adjust, large in output reduction force and the like.

Description

Technical Field

[0001] This invention belongs to the field of long bone fracture reduction technology, specifically relating to an automated device for femoral fracture reduction. Background Technology

[0002] Femoral fractures are among the most common fractures in trauma orthopedics. Currently, clinical reduction is performed by surgeons, and the accuracy of reduction depends on the surgeon's experience, which has drawbacks such as large wounds, low reduction accuracy, high surgical intensity, and multiple intraoperative X-ray fluoroscopy. Compared with traditional surgery, automated devices for fracture reduction surgery have significant advantages such as being minimally invasive, safe, precise, and requiring less surgical effort from the surgeon.

[0003] Due to the variety of fracture types and the differences in age and gender among patients, fracture reduction devices are required to be adaptable to different fracture types, have a wide range of adjustment, and be easy and quick to install and remove. At the same time, since there are a large number of soft tissues such as muscles around the fracture, the reduction force can be as high as 300N, so the device also needs to be able to output a large reduction force.

[0004] Existing fracture reduction devices still have shortcomings such as large system size, low degree of automation, inconvenient assembly and disassembly, small adjustment range, poor flexibility, and inability to provide sufficient traction force, which to some extent cannot meet the requirements of fracture reduction surgery.

[0005] To address the shortcomings of existing technologies, this invention relates to an automated device for traction reduction of femoral fractures that is adaptable to different types of femoral fractures, has a compact structure, is easy to adjust, and can output a large reduction force. Summary of the Invention

[0006] In view of this, the present invention provides an automated device for femoral fracture reduction. The present invention can be adapted to different femoral fracture patients and has significant advantages such as compact structure, convenient adjustment and large output reduction force.

[0007] To achieve the above objectives, the present invention adopts the following technical solution:

[0008] An automated device for femoral fracture reduction includes a base module, a proximal fixation module, a distal fixation rotation module, and a distal three-dimensional movement module. The base module includes a housing, a support member, and a device plate with a rectangular hole. The device plate is mounted on the housing via the support member. The proximal fixation module is located at the front end of the device plate. The distal three-dimensional movement module is mounted on the housing. The distal fixation rotation module passes through the rectangular hole in the device plate and is fixed to the distal three-dimensional movement module. The distal fixation rotation module includes a distal main body assembly, a distal support assembly, and an adjustment platform. The distal main body assembly is mounted on the distal three-dimensional movement module. The adjustment platform is located within the distal main body assembly. The distal support assembly is mounted on the distal main support assembly.

[0009] Furthermore, it also includes an F-clamp, an F-clamp connector, and a first slide rail assembly. The first slide rail assembly is disposed on the side of the device plate near the operating table board. The F-clamp connector is disposed on the first slide rail assembly, and the F-clamp is hinged to the F-clamp connector.

[0010] Furthermore, the proximal fixing module includes a second slide rail assembly, a bracket, a fastening nut, a sliding groove component, and a fixing component. The second slide rail assembly includes a second linear guide rail and a second slider. Two second sliders and two brackets are provided. The two second sliders are slidably mounted on the second linear slide rail. The two brackets are longitudinally mounted on the second sliders by bolts. The three sliding groove components are provided on the sides of the brackets. Each of the four sides of the sliding groove component has a sliding groove. The fixing component is provided on the sliding groove component.

[0011] Furthermore, the fixation assembly includes a first bone pin support rod, a second bone pin support rod, a proximal bone pin, and a bone pin clamp. Both ends of the first and second bone pin support rods are provided with external threads. The first bone pin support rod is set between the grooves of the longitudinally arranged sliding members by a fastening nut, and the second bone pin support rod is set between the grooves of the transversely arranged sliding members by a fastening nut. The bone pin clamps are respectively set on the first and second bone pin support rods, and the proximal bone pin is set on the bone pin clamp for implantation and fixation of the proximal femur.

[0012] Furthermore, the distal main component includes a distal support, a gear ring, an annular guide rail, a pinion, a motor mount, and a motor. The distal support has a insertion hole in its center and is an arc-shaped structure. The gear ring is located above the distal support and is connected to the distal support pin shaft to form an annular structure. The annular guide rail is located behind the gear ring and has a T-shaped cross-section. The motor mount is slidably mounted on the annular guide rail and has a threaded hole on its rear side. The motor is mounted on the motor mount, and the output shaft of the motor is fixedly connected to the pinion, which meshes with the gear ring.

[0013] Furthermore, the distal support assembly includes two sliding plates, a connecting rod, a third bone pin support rod, a bone pin clamp, and a distal bone pin. The two sliding plates are arc-shaped. One sliding plate is fixed to a threaded hole on the side of the motor base by bolts, and the other sliding plate is fixedly connected to it by the connecting rod. Arc-shaped grooves are provided on both sides of the sliding plate. The two ends of the third bone pin support rod are provided with external threads. The two ends of the third bone pin support rod pass through the arc-shaped grooves and are fixed between the two sliding plates by nuts. The bone pin clamp is disposed on the third bone pin support rod, and the distal bone pin is disposed on the bone pin clamp for implanting the distal bone pin into the distal femur.

[0014] Furthermore, the adjustment platform includes an adjustment platform support, an adjustment platform body, a roller, a mounting plate, and an adjustment positioning component; the adjustment platform support is n-shaped with adjustment holes of different heights on both sides, and is mounted on the far end support via the adjustment positioning component, with its top end fixedly connected to the adjustment platform body; the adjustment platform body is arc-shaped, with three protruding ends on both sides and the bottom, and the mounting plate is fixed to the protruding ends; both the adjustment platform body and the mounting plate are provided with through holes, and the roller is rotatably disposed in the through holes.

[0015] Furthermore, the remote three-dimensional motion module includes an electric push rod, a lifting platform, a first linear slide module, a slide connector, and a second linear slide module. The electric push rod and the lifting platform are both mounted on the housing. The end of the electric push rod is fixedly connected to the lifting platform. The first linear slide module is fixed on the lifting platform, and a slide connector is provided on its slide. The second linear slide module is fixed on the slide connector, and the second linear slide module is perpendicular to the first linear slide module.

[0016] Furthermore, it also includes an extension plate and a telescopic rod. The extension plate is hinged to the device plate via a connector. A telescopic rod connector is provided on one side of the housing. A slot is provided on the bottom surface of the extension plate. One end of the telescopic rod is hinged to the telescopic rod connector, and the other end of the telescopic rod is hinged to the slot.

[0017] Furthermore, the bottom plate of the box is equipped with four medical casters and four support feet.

[0018] The beneficial effects of this invention are as follows:

[0019] 1. The automated device of the present invention has four degrees of freedom and has significant advantages such as compact structure, convenient adjustment, large range of motion, high reset accuracy, and large reset force, which can effectively reduce the workload of doctors;

[0020] 2. The distal fixation rotation module of the present invention can adjust the adjusting positioning component into the adjusting holes of different heights on the adjusting platform support according to the thickness of the distal femoral fracture tissue of the patient, thereby adjusting the distal femoral tissue to a suitable position for convenient reduction operation. Since two bone pins are first inserted into the distal fracture tissue, the third bone pin support rod can be adjusted and moved within the groove of the sliding plate, thus allowing for more flexible and convenient connection between the bone pin support rod and the distal bone pin. The motor in the distal fixation rotation module outputs a reduction torque. When the motor stops rotating and the fastening nut is tightened, the entire distal fixation rotation module is in a rigid state, thereby firmly and reliably fixing the distal bone pin and improving the reliability of the surgery. The distal rotation module adopts a gear transmission method, which has the advantage of a large rotation range. The distal fixation rotation module has the advantages of flexible adjustment, wide adjustment range, reliable fixation, and high rotational reduction accuracy.

[0021] 3. The proximal fixation module of this invention can adjust the spacing between the two second sliders and three sliding grooves according to the thickness of the proximal fracture tissue of the patient, so as to adapt to the size of the proximal femur. The bone pin support rod can be adjusted in three mutually perpendicular directions. When the two second sliders move, the bone pin support rod can move laterally. When the sliding groove moves up and down along the support, it drives the bone pin support rod to move vertically. When the bone pin support rod moves within the groove of the sliding groove, it moves longitudinally, thereby enabling more flexible fixation to the proximal bone pin. Tightening the fastening nut and the positioning screw on the slider ensures that the entire proximal fixation module can firmly and reliably fix the proximal bone pin, improving the reliability of the surgery. The entire proximal fixation module has significant advantages such as flexible adjustment, wide adjustment range, and reliable fixation.

[0022] 4. The distal three-dimensional moving module of the present invention uses two linear slide modules for lateral and longitudinal movement, and uses an electric push rod for vertical movement. Therefore, the distal tissue of the femoral fracture can be moved and reduced along three mutually perpendicular directions, which has the advantages of large reduction range, high reduction accuracy and strong load-bearing capacity.

[0023] 5. The base module of the present invention uses two F-clamps to firmly clamp the automated device of the present invention to the operating table board. The bottom of the box has four feet and four lockable medical casters, which can ensure the safety and stability of the device during use. Attached Figure Description

[0024] Figure 1 This is a schematic diagram of an automated device for reducing femoral fractures.

[0025] Figure 2 This is a schematic diagram of the base module;

[0026] Figure 3 This is a schematic diagram of the base module;

[0027] Figure 4 This is a schematic diagram of the near-end fixing module;

[0028] Figure 5 This is a schematic diagram of the remote fixed rotating module;

[0029] Figure 6 This is a schematic diagram of the remote main component;

[0030] Figure 7 This is a schematic diagram of the remote support assembly;

[0031] Figure 8 This is an exploded view of the control panel;

[0032] Figure 9 This is a schematic diagram of a remote 3D motion module.

[0033] In the diagram: 1-Base module, 2-Proximal fixation module, 3-Distal fixation rotation module, 4-Distal three-dimensional movement module, 5-Operating table board, 11-F-clamp, 12-First linear guide rail, 13-Support component, 14-Device plate, 15-Extension plate, 16-Telescopic rod connector, 17-Box body, 18-Support rod, 19-Medical caster wheel, 110-Support foot, 111-F-clamp connector, 112-First slider, 113-Extension plate connector, 114-Slot component, 115-Telescopic rod, 21-Second linear guide rail, 22-Second slider, 23-Proximal support screw, 24-Support, 25-Fasting nut, 26-Slide component, 27-First bone needle support rod, 28-Second bone needle support rod, 29-Proximal bone needle. 210-Bone pin clamp, 211-Proximal femur, Ⅰ-Distal main body assembly, Ⅱ-Distal support assembly, Ⅲ-Adjusting platform, 31-Distal support screw, 32-Distal support, 33-Connecting rod nut, 34-Threaded connecting rod, 35-230° toothed ring, 36-Annular guide rail, 37-Pin gear, 38-Motor base, 39-Motor, 310-Slide plate, 311-Connecting rod, 312-Distal bone pin, 313-Third bone pin support rod, 314-Distal femur, 315-Adjusting platform support, 316-Adjusting platform main body, 317-Roller, 318-Mounting piece, 319-Adjusting and positioning component, 41-Electric push rod, 42-Lifting platform, 43-First linear slide module, 44-Slide connector, 45-Second linear slide module. Detailed Implementation

[0034] The technical solutions of the present invention will be clearly and completely described below with reference to the accompanying drawings in the embodiments of the present invention.

[0035] In the description of this invention, it should be noted that the terms "center," "upper," "lower," "left," "right," "horizontal," "inner," "outer," and "one side," etc., 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 the invention and for simplifying the description, and do not 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 the invention. The terms "first," "second," and "third" are used for descriptive purposes only and should not be construed as indicating or implying relative importance. Furthermore, unless otherwise explicitly specified and limited, the terms "installed," "connected," and "linked" should be interpreted broadly. For example, they can refer to a fixed connection, a detachable connection, or an integral connection; they can refer to a mechanical connection or an electrical connection; they can refer to a direct connection or an indirect connection through an intermediate medium; and they can refer to the internal connection of two components. Those skilled in the art can understand the specific meaning of the above terms in this invention based on the specific circumstances.

[0036] Example 1

[0037] like Figures 1 to 9 As shown, this embodiment provides an automated device for femoral fracture reduction, including a base module 1, a proximal fixation module 2, a distal fixation rotation module 3, and a distal three-dimensional movement module 4.

[0038] like Figure 1-2 As shown, the second linear guide rail 21 in the near-end fixed module 2 has several mounting holes. Screws pass through the mounting holes to fix the near-end fixed module 2 to the base module 1. The top of the housing 17 in the base module 1 has several through holes. The bottom of the four legs of the lifting platform 42 and the bottom of the electric push rod 41 in the far-end three-dimensional moving module 4 also have several through holes. The far-end three-dimensional moving module 4 is fixedly connected to the base module 1 by bolts and nuts. The bottom of the far-end support 32 in the far-end fixed rotating module 3 has four through holes. The top of the slide of the second linear slide module 45 in the far-end three-dimensional moving module 4 has four threaded holes. Screws pass through the through holes at the bottom of the far-end support 32 and engage with the threaded holes on the slide to fix the far-end fixed rotating module 3 to the far-end three-dimensional moving module 4.

[0039] like Figure 2-3 As shown, the base module 1 includes two F-clamps 11, a first linear guide rail 12, a support member 13, a device plate 14, an extension plate 15, a telescopic rod connector 16, a housing 17, a support rod 18, medical casters 19, support feet 110, F-clamp connector 111, a first slider 112, an extension plate connector 113, a slot 114, and a telescopic rod 115; four medical casters 19 are installed below the housing 17 and are bolted to the four support feet 110; the top of the housing 17 has a through hole, and the top and bottom of the support member 13 and the two support rods 18 also have through holes, with bolts passing through the front top of the housing 17. Through holes securely connect the support member 13 to the housing 17. Bolts pass through the through holes on the rear top of the housing 17 to securely connect the two support rods 18 to the housing 17. The front side of the device plate 14 has four through holes. Bolts pass through the through holes of the device plate 14 and the support member 13 to securely connect the device plate 14 to the support member 13. The bottom rear side of the device plate 14 has four threaded holes. Screws are used to securely connect the upper end of the support rod 18 to the device plate 14. The front end of the device plate 14 has threaded holes. Screws are used to securely connect the device plate 14 to the first linear guide rail 12 in the operating table board connection assembly. The rear side of the device plate 14 is connected to the extension plate 15 through the extension plate connector 113 pin.

[0040] Furthermore, the operating table board connection assembly includes a first linear guide rail 12, on which two first sliders 112 are mounted and slide in cooperation with the first linear guide rail 12; an F-clamp 11 is pin-connected to an F-clamp connector 111; each of the two first sliders 112 has a threaded hole at its top, and the F-clamp connector 111 is fixedly connected to the first slider 112 with screws, so that when the first slider 112 moves on the first linear guide rail 12, it drives the F-clamp 11 to move; the F-clamp 11 can be opened and closed according to the thickness of the operating table board and is clamped in cooperation with the operating table board; the side of the housing 17 has a through hole, and bolts pass through the through hole on the side of the housing 17 and are fixedly connected to the telescopic rod connector 16; the end of the telescopic rod 115 is connected to the telescopic rod connector 16 by a pin to form a rotating pair; the slot 114 is made of angle iron, with a hole at the top and a slot on the side, and the slot 114 is fixedly connected to the extension plate 15 with screws; the rod end of the telescopic rod 115 is stuck in the slot of the slot 114.

[0041] like Figure 4 As shown, the proximal fixation module 2 includes a second linear guide 21, a second slider 22, a proximal support screw 23, a bracket 24, a fastening nut 25, a sliding groove 26, a first bone pin support rod 27, a second bone pin support rod 28, a proximal bone pin 29, a bone pin clamp 210, and a proximal femur 211. The second linear guide 21 has two second sliders 22 mounted on it, which slide in cooperation with the second linear guide 21. Each second slider 22 has two threaded holes at its top and a bracket 24 mounted on it. The bracket 24 has a slot on one side extending to the other side, and two through holes at its bottom through which two proximal support screws 23 pass. 4. The bottom through hole is used to fix the bracket 24 to the second slider 22. Each bracket 24 is equipped with 1 to 2 sliding grooves 26 according to the surgical situation. The sliding groove 26 has a sliding groove on all four sides and two through holes at the bottom. Two bolts pass through the two through holes at the bottom of the sliding groove 26 and the groove of the bracket 24 to fix the sliding groove 26 to the bracket 24. According to the surgical situation, the two ends 27 of the first bone needle bracket rod and the second bone needle bracket rod 28 of different lengths are selected. One bone needle bracket rod is clamped between every two sliding grooves 26. The first bone needle bracket rod 27 is installed vertically and the second bone needle bracket rod 28 is installed horizontally.

[0042] Furthermore, the first bone needle support rod 27 and the second bone needle support rod 28 are thicker in the middle and thinner at both ends and have threads. The width of the groove of the sliding part 26 is the same as the diameter of the two ends of the bone needle support rod. The two ends of the bone needle support rod pass through the two sliding parts 26 respectively. The fastening nut 25 is installed at the threaded ends of the bone needle support rod. By rotating the fastening nut 25, the sliding part 26 clamps and fixes the bone needle support rod.

[0043] Furthermore, one side of each of the two bone pin clamps 210 is clamped and fixed to the first bone pin support rod 27 and the second bone pin support rod 28, respectively, and the other side is clamped and fixed to two proximal bone pins 29; the proximal bone pins 29 are implanted in the proximal femur 211.

[0044] like Figure 5 , Figure 6 As shown, the remote fixed rotating module 3 consists of a remote main body assembly I, a remote support assembly II, and an adjustment platform III. The remote support assembly II is fixedly connected to the remote main body assembly I via remote support screws 31, and the adjustment platform III is connected to the remote main body assembly I via adjusting positioning components 319. The remote main body assembly I includes a remote support 32, a connecting rod nut 33, a threaded connecting rod 34, a 230° gear ring 35, an annular guide rail 36, a pinion 37, a motor base 38, and a motor 39. The remote support 32 has a 130° arc-shaped structure in the center, with connecting holes on both sides and adjustment holes on both sides. Above the remote support 32 is a 230° gear ring 35, which also has connecting holes on both sides of its bottom. Two threaded connecting rods 34 pass through the connecting holes of the remote support 32 and the 230° gear ring 35 respectively, connecting the remote support 32 and the 230° gear ring 35. The threaded connecting rod 34 has a thread at one end, and the connecting rod nut 33 engages with the threaded connecting rod 34. The 230° toothed ring 35 has four threaded holes on one side, which are used to fix the annular guide rail 36. The annular guide rail 36 has a T-shaped cross-section, and the motor base 38 also has a certain curvature and is hollow in the middle. The cross-sectional shape of the hollow part is consistent with the cross-section of the annular guide rail 36, and the motor base 38 slides with the annular guide rail 36. The motor base 38 has two threaded holes on its side for connecting the remote support assembly II. The motor 39 is fixedly connected to the motor base 38 by bolts and nuts. The output shaft of the motor 39 is fixedly connected to the pinion 37, and the pinion 37 engages with the 230° toothed ring 35. An adjustment platform III is also mounted on the top of the remote support 32. The adjustment hole on the side of the remote support 32 and the cylinder of the adjustment positioning part 319 are coaxially engaged with the adjustment hole of the adjustment platform support 315.

[0045] Furthermore, such as Figure 7As shown, the distal support assembly II includes sliding plates 310, connecting rods 311, distal bone pins 312, and third bone pin support rods 313. The two sliding plates 310 are arc-shaped, with four through holes in the middle and arc-shaped sliding grooves on both sides. Between the two sliding plates 310 are two connecting rods 311 and two third bone pin support rods 313. Both the connecting rods 311 and the third bone pin support rods 313 are thicker in the middle and thinner at both ends, and are threaded. The two ends of the connecting rods 311 pass through the through holes on both sides of the two sliding plates 310. Nuts are installed at the threads at both ends of the connecting rods 311. By rotating the nuts, the two sliding plates 310 clamp and fix the two connecting rods 311. The end bracket screw 31 passes through the two through holes in the middle of a sliding plate 310 and engages with the two threaded holes on the side of the motor base 38, fixing the entire distal bracket assembly II to the motor base 38. The two ends of the third bone needle bracket rod 313 pass through the sliding grooves of the two sliding plates 310 respectively. The fastening nut 25 is installed at the threaded ends of the third bone needle bracket rod 313. By rotating the nut, the two sliding plates 310 clamp and fix the two third bone needle bracket rods 313. One end of the two bone needle clamps 210 clamps and engages with the two third bone needle bracket rods 313 respectively, and the other end clamps and engages with the two distal bone needles 312 respectively. The distal bone needles 312 are implanted in the distal femur 314.

[0046] Furthermore, such as Figure 8 As shown, the adjusting platform III includes an adjusting platform support 315, an adjusting platform body 316, rollers 317, mounting plates 318, and adjusting positioning components 319. The adjusting platform support 315 is n-shaped, with five rows of adjusting holes on both sides and four through holes at the top, which are fixedly connected to the upper adjusting platform body 316 by bolts and nuts. The adjusting platform body 316 has three protruding ends on both sides and at the bottom, each with a threaded hole, which is used to fix the mounting plates 318 to the platform. The other side of the adjusting platform body 316 has seven through holes, which are coaxially engaged with the thin ends of the seven rollers 317. The seven through holes in the middle of the mounting plates 318 are coaxially engaged with the thin ends of the other ends of the seven rollers 317.

[0047] like Figure 9As shown, the remote three-dimensional moving module 4 includes an electric push rod 41, a lifting platform 42, a first linear slide module 43, a slide connector 44, and a second linear slide module 45. The electric push rod 41 is at the bottom of the remote three-dimensional moving module 4, and the lifting platform 42 is in the middle. The lifting platform 42 has four through holes in the center and two smaller through holes on each side. Bolts pass through the through holes in the center of the lifting platform 42 to fix the lifting platform 42 to the rod end of the electric push rod 41. The bottom of the first linear slide module 43 and the second linear slide module 45 are each equipped with four square nuts. The slides on them each have four threaded holes. Screws pass through the smaller through holes on both sides of the lifting platform 42 and connect to the four square nuts at the bottom of the first linear slide module 43 to fix the lifting platform 42 to the bottom of the first linear slide module 43.

[0048] Furthermore, the slide connector 44 has four through holes in the middle and two through holes on each side. Screws pass through the through hole in the middle of the slide connector 44 and connect to the slide thread hole of the first linear slide module 43 to fix the second linear slide module 45 to the slide of the first linear slide module 43. Screws pass through the through holes on both sides of the slide connector 44 and connect to the square nuts at the bottom of the second linear slide module 45 to fix the slide connector 44 to the bottom of the second linear slide module 45.

[0049] The automated device of the present invention performs the following operation process for femoral fracture reduction:

[0050] Taking a patient with a right femoral fracture as an example (when a patient has a left femoral fracture, the left and right sides in the following description can be interchanged).

[0051] Before the operation, the patient's right leg was injured. The support foot 110 of the device was loosened, and the entire device was moved closer to the operating table using the medical caster 19. The two first sliders 112 were adjusted to the appropriate positions, and then the positioning screws on the sliders were tightened. The F clamp 11 clamped the operating table board, and at the same time fixed the medical caster 19 and the support foot 110, completing the fixed connection between the entire device and the operating table. The telescopic rod 115 was pulled out and locked in the slot to support the extension plate 15.

[0052] First, disassemble the proximal fixation module 2, leaving only the second linear guide 21 and the two second sliders 22; then, for the distal fixation rotation module 3, since the patient's right leg is injured, unscrew the connecting rod nut 33 on the right side of the distal fixation rotation module 3, remove the threaded connecting rod 34, and the upper part of the distal fixation rotation module 3 rotates around the threaded connecting rod 34 on the other side to open; according to the thickness of the patient's leg, use the adjusting positioning component 319 to raise and lower the adjusting platform Ⅲ to a suitable position; finally, use the distal three-dimensional moving module 4 to move the distal fixation rotation module 3 to a suitable position according to the condition of the patient's right leg.

[0053] The patient lies flat on the operating table with both legs placed on the device plate 14; the right leg is placed in the middle of the device, and the two second sliders 22 are placed on both sides of the proximal leg. The patient's distal leg is carefully placed on the adjustment table III; the upper part of the distal fixed rotating module 3 is closed, the right threaded connecting rod 34 is inserted, and the connecting rod nut 33 is tightened.

[0054] Based on the thickness of the patient's proximal leg, select the appropriate first bone pin support rod 27 and second bone pin support rod 28. Since the patient has a right femoral fracture, two sliding parts 26 are installed on the right support 24, while only one sliding part 26 needs to be installed on the left support 24. After installing the two bone pin support rods, tighten the fastening nuts 25 to prevent the support rods from sliding. Attach this part to the patient's proximal leg and use the proximal support screws 23 to fix the two supports to the second slider 22 respectively.

[0055] Using bone pin clamp 210, fix the proximal bone pin 29 to the first bone pin support rod 27 and the second bone pin support rod 28, and fix the distal bone pin 312 to the two third bone pin support rods 313; if adjustment is required, loosen the fastening nut 25, move the four support rods to the appropriate position, and then install and fix them.

[0056] The remote 3D movement module 4 is used for movement in three directions: horizontal, vertical, and longitudinal. Motor 39 is used to output rotational power to perform rotational motion; the entire device can perform 4D reset motion.

[0057] While the specific embodiments of the present invention have been described above in conjunction with the accompanying drawings, this is not intended to limit the scope of protection of the present invention. Those skilled in the art should understand that various modifications or variations that can be made by those skilled in the art without creative effort based on the technical solutions of the present invention are still within the scope of protection of the present invention.

Claims

1. An automated device for reducing femoral fractures, characterized in that, The device includes a base module, a proximal fixing module, a distal fixing and rotating module, and a distal three-dimensional moving module. The base module includes a housing, a support member, and a device plate with a rectangular hole. The device plate is mounted on the housing via the support member. The proximal fixing module is located at the front end of the device plate. The distal three-dimensional moving module is mounted on the housing. The distal fixing and rotating module passes through the rectangular hole in the device plate and is fixed to the distal three-dimensional moving module. The distal fixing and rotating module includes a distal main body assembly, a distal support assembly, and an adjustment platform. The distal main body assembly is mounted on the distal three-dimensional moving module. The adjustment platform is located within the distal main body assembly. The distal support assembly is mounted on the distal main support assembly.

2. The automated device for femoral fracture reduction according to claim 1, characterized in that, It also includes an F-clamp, an F-clamp connector, and a first slide rail assembly. The first slide rail assembly is disposed on the side of the device plate near the operating table board. The F-clamp connector is disposed on the first slide rail assembly, and the F-clamp is hinged to the F-clamp connector.

3. The automated device for femoral fracture reduction according to claim 1, characterized in that, The proximal fixing module includes a second slide rail assembly, a bracket, a fastening nut, a sliding groove component, and a fixing component. The second slide rail assembly includes a second linear guide rail and a second slider. There are two second sliders and two brackets. The two second sliders are slidably mounted on the second linear slide rail. The two brackets are longitudinally mounted on the second sliders by bolts. The three sliding groove components are arranged on the sides of the brackets. Each of the four sides of the sliding groove component has a sliding groove. The fixing component is arranged on the sliding groove component.

4. An automated device for femoral fracture reduction according to claim 3, characterized in that, The fixation assembly includes a first bone pin support rod, a second bone pin support rod, a proximal bone pin, and a bone pin clamp. Both ends of the first and second bone pin support rods are provided with external threads. The first bone pin support rod is set between the grooves of the longitudinally arranged sliding members by a fastening nut, and the second bone pin support rod is set between the grooves of the transversely arranged sliding members by a fastening nut. The bone pin clamps are respectively set on the first and second bone pin support rods, and the proximal bone pin is set on the bone pin clamp for implantation and fixation of the proximal femur.

5. An automated device for femoral fracture reduction according to claim 1, characterized in that, The distal main component includes a distal support, a gear ring, an annular guide rail, a pinion, a motor mount, and a motor. The distal support has a central insertion hole and an arc-shaped structure. The gear ring is located above the distal support and connected to the distal support pin shaft, forming an annular structure. The annular guide rail is located behind the gear ring and has a T-shaped cross-section. The motor mount is slidably mounted on the annular guide rail. The rear side of the motor mount has a threaded hole. The motor is mounted on the motor mount, and the motor's output shaft is fixedly connected to the pinion, which meshes with the gear ring.

6. An automated device for femoral fracture reduction according to claim 5, characterized in that, The distal support assembly includes two sliding plates, a connecting rod, a third bone pin support rod, a bone pin clamp, and a distal bone pin. The two sliding plates are arc-shaped. One sliding plate is fixed to a threaded hole on the side of the motor base by bolts, and the other sliding plate is fixedly connected to it by the connecting rod. Arc-shaped grooves are provided on both sides of the sliding plate. The two ends of the third bone pin support rod are provided with external threads. The two ends of the third bone pin support rod pass through the arc-shaped grooves and are fixed between the two sliding plates by nuts. The bone pin clamp is set on the third bone pin support rod, and the distal bone pin is set on the bone pin clamp for implanting the distal bone pin into the distal femur.

7. An automated device for femoral fracture reduction according to claim 5, characterized in that, The adjusting platform includes an adjusting platform support, an adjusting platform body, a roller, a mounting plate, and an adjusting positioning component. The adjusting platform support is n-shaped, with adjusting holes of different heights on both sides. The adjusting platform support is mounted on the far end support via the adjusting positioning component, and its top end is fixedly connected to the adjusting platform body. The adjusting platform body is arc-shaped, with three protruding ends on both sides and the bottom. The mounting plate is fixed to the protruding ends. Both the adjusting platform body and the mounting plate are provided with through holes, and the roller is rotatably mounted in the through holes.

8. An automated device for femoral fracture reduction according to claim 1, characterized in that, The remote three-dimensional motion module includes an electric push rod, a lifting platform, a first linear slide module, a slide connector, and a second linear slide module. The electric push rod and the lifting platform are both mounted on the housing. The end of the electric push rod is fixedly connected to the lifting platform. The first linear slide module is fixed on the lifting platform, and a slide connector is provided on the slide. The second linear slide module is fixed on the slide connector, and the second linear slide module is perpendicular to the first linear slide module.

9. An automated device for femoral fracture reduction according to claim 1, characterized in that, It also includes an extension plate and a telescopic rod. The extension plate is hinged to the device plate via a connector. A telescopic rod connector is provided on one side of the box. A slot is provided on the bottom surface of the extension plate. One end of the telescopic rod is hinged to the telescopic rod connector, and the other end of the telescopic rod is hinged to the slot.

10. An automated device for femoral fracture reduction according to claim 1, characterized in that, The bottom plate of the box is equipped with four medical casters and four support feet.

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