Orthopedic trauma traction positioning device and positioning method thereof

Abstract

The invention discloses an orthopedic trauma traction positioning device and a positioning method thereof, and relates to the technical field of clinical orthopedics. Comprising a clamping seat, a clamping groove is formed in the bottom end of the clamping seat, a locking bolt is arranged at the top of the clamping seat in a penetrating mode, a sliding disc is arranged at the center of the clamping seat, a deflection ball is movably installed in the sliding disc, supporting frames are symmetrically arranged on the outer side of the deflection ball, and movable shafts are fixedly installed at the tops of the supporting frames; a guide frame is movably installed at the top end of the movable shaft, a traction assembly is movably arranged in the middle of the guide frame, and fracture line features and bone block displacement data are accurately extracted and preprocessed by obtaining a CT image of a bone trauma traction part. The traction force position range is determined according to the data, the traction force is monitored in real time and fed back to a database for rehabilitation evaluation, the fracture condition is accurately known, a traction treatment scheme is scientifically formulated, treatment is adjusted in time according to the real-time feedback data, and the rehabilitation effect is remarkably improved.

Description

Technical Field

[0001] The invention relates to the technical field of clinical orthopedics, in particular to an orthopedic trauma traction positioning device and a positioning method thereof. Background Art

[0002] In orthopedic trauma treatment, accurate traction and positioning of the fracture site is a key step in promoting fracture healing. It uses continuous traction to have a certain therapeutic effect on the reduction and fixation of fractures or dislocations, the immobilization of inflamed limbs, the correction of limb contracture deformities, and functional exercise.

[0003] Traditional orthopedic trauma traction and positioning devices have many limitations. On the one hand, they are not flexible enough, and it is difficult to adjust them at multiple angles and in multiple directions according to different fracture types and patient positions, and they cannot meet the treatment needs of complex fractures. On the other hand, the control and monitoring of traction force is not precise enough, and doctors can only estimate the traction force based on experience. There is a lack of real-time and accurate monitoring methods, which can easily lead to excessive or insufficient traction force. Excessive traction may cause secondary injuries, while too little traction may fail to achieve the ideal treatment effect. Contents of the invention

[0004] Technical issues solved

[0005] In view of the deficiencies in the prior art, the present invention provides an orthopedic trauma traction positioning device and a positioning method thereof, which solve the problems of insufficient flexibility of traditional devices and inaccurate detection and control of traction force.

[0006] Technical Solution

[0007] To achieve the above objectives, the present invention is implemented through the following technical solutions: a traction and positioning device for orthopedic trauma, comprising a base, a base having a slot at the bottom end, a locking bolt penetrating the top of the base, a sliding plate at the center of the base, a deflection ball movably installed inside the sliding plate, a support frame symmetrically arranged on the outside of the deflection ball, a movable shaft fixedly installed on the top of the support frame, a guide frame movably installed on the top of the movable shaft, a traction assembly movably arranged in the middle of the guide frame, a guide assembly is arranged at one end of the guide frame, a traction rope is arranged on the guide assembly, a traction assembly is arranged at one end of the traction rope, an oblique bracket is symmetrically arranged on the outside of the guide frame, a console is arranged on one side of the base, the console is used in conjunction with the traction assembly, a monitoring assembly is arranged at one end of the traction rope, and the monitoring assembly is data-connected with the console.

[0008] Furthermore, the pulling assembly includes a limiting hole, a through hole, a long-axis screw rod, a slider, and a motor. A slotted hole is penetrated on one side of the guide frame, the middle part of the guide frame is hollowed out, the through hole is opened horizontally, the limiting holes are symmetrically opened on the top surface of the guide frame, the slider is installed laterally and movably on the inner side of the through hole, the long-axis screw rod is penetrated from one end of the guide frame and is located at the center position, and the motor is fixedly installed at one end of the guide frame.

[0009] Furthermore, the long-axis screw rod is movably arranged through the guide frame, one end of the long-axis screw rod is fixedly connected to the output end of the motor, one end of the sliding block is penetrated by a round hole, and the long-axis screw rod is arranged through the round hole, wherein the thread on the outer side of the long-axis screw rod is adapted to the thread groove of the round hole.

[0010] Furthermore, a sliding plate is fixedly mounted on the surface of the limiting hole, wherein the sliding plate is connected by two groups of symmetrically arranged metal rods, the metal rods are arranged through the limiting hole, and the sliding plate is used in conjunction with the monitoring component.

[0011] Furthermore, the guide assembly includes a square frame and a guide wheel. The square frame is sleeved at one end of the guide frame. The guide wheel is symmetrically arranged on the top surface of the square frame. The traction rope is wound around the guide wheel.

[0012] Furthermore, the monitoring component arranged at one end of the traction rope includes a force sensor and a guide ring. The force sensor is arranged on the surface of the sliding plate, the guide ring is arranged on one side of the sliding plate, the traction rope passes through the guide ring, and one end of the traction rope is plugged into the force sensor.

[0013] Furthermore, the traction assembly includes a trailer, a mounting groove, a mounting frame, a fixer, and a bone traction pin. The top of the trailer is fixedly mounted on the bottom end of the traction rope, the mounting groove is arranged on the inner side of the trailer, the mounting frame is plugged into the inner wall of the mounting groove, the fixer is fixedly mounted on the inner end of the mounting frame, and circular sockets are equidistantly arranged on the surface of the fixer. Both ends of the bone traction pin are respectively plugged into the circular sockets.

[0014] A positioning method for an orthopedic trauma traction positioning device comprises the following steps:

[0015] Obtain CT images of the bone trauma traction site, fracture line characteristics, and bone displacement data;

[0016] Preprocess the fracture line features and bone displacement data;

[0017] The injured bone with the bone traction pin inserted is placed on the traction assembly for positioning;

[0018] Determine the size and position range of the traction force;

[0019] The traction force is monitored in real time and the monitoring data is fed back to the database for rehabilitation evaluation.

[0020] The CT image is obtained as Where x, y, z are spatial coordinates;

[0021] The fracture line features are extracted by edge detection algorithm. Let the extracted fracture line pixel set be F = {ρ τ |τ=1,2,…,n),ρ τ =(x τ ,y τ , z τ );

[0022] The bone displacement data is obtained by comparing CT images at different time points. Assume that the initial bone position is B 0 , the current bone position is B 1 , bone displacement vector , whose components in three-dimensional space are expressed as

[0023] The fracture line feature F is subjected to noise reduction by using Gaussian filtering method. Let Gaussian filtering be G 0 (μ, π, ρ, σ), fracture line features after filtering

[0024] Normalize the bone displacement data and set the normalized displacement vector for:

[0025]

[0026] in

[0027] Furthermore, the position coordinates of the designed bone placed on the traction assembly are (x 0 ,y 0 , z 0 ),

[0028] The positioning parameters of the distraction component are related to the location of the injured bone;

[0029] The adjustment of the traction assembly is achieved by displacement in three directions (Δ x , Δ y , Δ z ,) to achieve the ideal traction position of the injured bone (x target ,y target , z target ) then:

[0030] x target =x 0 +Δ x ;

[0031] y target =y 0 +Δ y ;

[0032] z target =z 0 +Δ z .

[0033] According to the mechanical model of the bone and the fracture type, the traction force F is assumed to be related to the mass m of the bone, the expected acceleration a of the bone, and the resistance coefficient μ of the fracture site. Newton's second law can be used to obtain:

[0034] F=m*a+μ*mg

[0035] Where g is the acceleration due to gravity.

[0036] Real-time monitoring and feedback evaluation related data:

[0037] F real :The actual traction force monitored in real time by the sensor reflects the actual situation of the force applied during the current traction process.

[0038] [F min , F max ]: The ideal traction force range corresponding to different rehabilitation stages stored in the database is the reference standard for evaluating whether the real-time traction force is appropriate.

[0039] The γ deviation rate is used to measure the real-time traction force F real The middle value of the ideal traction range The denominator is It is the half width of the ideal traction force range. Through such calculation, the relative size of the real-time traction force deviation from the ideal value can be intuitively reflected.

[0040] R = 1-K*γ, R is the degree of recovery, which is inversely proportional to the deviation rate γ.

[0041] K is the weight coefficient, which is determined by clinical experience. It adjusts the influence of the deviation rate on the degree of rehabilitation. Through this formula, the current degree of rehabilitation is evaluated according to the deviation between the real-time traction force and the ideal value, and F is used as the weight coefficient. real and R are fed back to the database to assist in subsequent treatment plan adjustment and rehabilitation evaluation.

[0042] Beneficial Effects

[0043] The present invention has the following beneficial effects:

[0044] 1. The orthopedic trauma traction positioning device obtains CT images of the traction site of bone trauma, accurately extracts fracture line characteristics and bone displacement data, and performs preprocessing. The traction force size and position range are determined based on these data, and the traction force size is monitored in real time and fed back to the database for rehabilitation evaluation. This enables doctors to fully and accurately understand the fracture situation, scientifically formulate traction treatment plans, and adjust treatment in a timely manner based on real-time feedback data, significantly improving rehabilitation effects.

[0045] 2. The orthopedic trauma traction positioning device can switch between the horizontal and vertical states of the guide frame by flipping the movable axis, and can be easily adjusted according to different clinical use scenarios. At the same time, the deflection ball set on the inner wall of the holder, combined with the arc sleeve and the through hole, can accurately limit and adjust the deflection angle of the support frame, greatly improving the applicability of the device in different fracture treatment scenarios.

[0046] 3. The square sleeve and guide wheel in the guide assembly play a good guiding role for the traction rope, ensuring the smooth traction process. The force sensor in the monitoring assembly can monitor the tension of the traction assembly at one end of the traction rope in real time, and the guide ring plays a role in limiting and lubricating, providing reliable data support and operation guarantee for the traction process.

[0047] Of course, any product implementing the present invention does not necessarily need to achieve all of the advantages described above at the same time. BRIEF DESCRIPTION OF THE DRAWINGS

[0048] Figure 1 It is a three-dimensional schematic diagram of an orthopedic trauma traction and positioning device of the present invention;

[0049] Figure 2 It is a schematic diagram of the local structure of the present invention Figure 1 ;

[0050] Figure 3 It is a schematic diagram of the local structure of the present invention Figure 2 ;

[0051] Figure 4 It is a schematic diagram of the local structure of the present invention Figure 3 ;

[0052] Figure 5 It is a schematic diagram of the local structure of the present invention Figure 4 ;

[0053] Figure 6 It is a schematic diagram of the connection structure of the traction rope and the force sensor in the present invention;

[0054] Figure 7 It is a schematic diagram of the local structure of the present invention Figure 5 ;

[0055] Figure 8This is a flow chart of the positioning method of the orthopedic trauma traction positioning device of the present invention.

[0056] In the figure, 1, the card seat; 2, the card slot; 3, the locking bolt; 4, the arc sleeve one; 5, the deflection ball; 6, the support frame; 7, the movable shaft; 8, the guide frame; 9, the sliding plate; 10, the traction rope; 11, the guide wheel; 12, the square frame; 13, the oblique bracket; 14, the drag rack; 15, the fixer; 16, the bone traction needle; 17, the mounting frame; 18, the mounting slot; 19, the long axis screw rod; 20, the slider; 21, the limit hole; 22, the through hole; 23, the force sensor; 24, the guide ring; 25, the motor; 26, the arc sleeve two; 27, the control console. DETAILED DESCRIPTION

[0057] The following will be combined with the drawings in the embodiments of the present invention to clearly and completely describe the technical solutions in the embodiments of the present invention. Obviously, the described embodiments are only 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.

[0058] In the description of the present invention, it should be understood that the terms "opening", "upper", "lower", "thickness", "top", "middle", "length", "inside", "all around" and the like indicating orientation or positional relationship are only for the convenience of describing the present invention and simplifying the description, rather than indicating or implying that the components or elements referred to must have a specific orientation, be constructed and operated in a specific orientation, and therefore should not be understood as limiting the present invention.

[0059] See also Figure 1-8 The embodiment of the present invention provides a technical solution: a traction and positioning device for orthopedic trauma, comprising a holder 1, a holder 1 having a holder slot 2 at the bottom end, a locking bolt 3 penetrating the top of the holder 1, a sliding plate 9 at the center of the holder 1, a deflection ball 5 movably installed inside the sliding plate 9, a support frame 6 symmetrically arranged on the outside of the deflection ball 5, a movable shaft 7 fixedly installed on the top of the support frame 6, a guide frame 8 movably installed on the top of the movable shaft 7, a traction component movably arranged in the middle of the guide frame 8, a guide component arranged at one end of the guide frame 8, a traction rope 10 arranged on the guide component, a traction component arranged at one end of the traction rope 10, an oblique bracket 13 symmetrically arranged on the outside of the guide frame 8, a console 27 arranged on one side of the holder 1, the console 27 is used in conjunction with the traction component, a monitoring component is arranged at one end of the traction rope 10, and the monitoring component is data-connected with the console 27;

[0060] When in use, the present device can switch between the horizontal and vertical states of the guide frame 8 by flipping the movable shaft 7, and can be used according to different usage scenarios. At the same time, the deflection ball 5 arranged on the inner wall of the base 1 can limit and adjust the deflection angle of the support frame 6 under the action of the arc sleeve 4 and the through hole 22, wherein the top of the arc sleeve 4 is rotated to make it move downward along the threaded hole on the top, thereby realizing the limit locking of the top of the deflection ball 5. When the slot 2 at the lower end of the base 1 is clamped at the bedside, due to the locking of the locking bolt 3, the arc sleeve 26 pushes the deflection ball 5 upward, thereby realizing the adjustment of the angle of the support frame 6.

[0061] Specifically, the pulling assembly includes a limiting hole 21, a through hole 22, a long-axis screw rod 19, a slider 20, and a motor 25. A slotted hole is formed on one side of the guide frame 8, and the middle part of the guide frame 8 is hollowed out. The through hole 22 is formed horizontally, and the limiting hole 21 is formed symmetrically on the top surface of the guide frame 8. The slider 20 is movably installed on the inner side of the through hole 22. The long-axis screw rod 19 is formed through one end of the guide frame 8 and is located at the center. The motor 25 is fixedly installed on one end of the guide frame 8.

[0062] A sliding plate 9 is fixedly mounted on the surface of the limiting hole 21 , wherein the sliding plate 9 is connected by two groups of symmetrically arranged metal rods, and the metal rods are arranged through the limiting hole 21 , wherein the sliding plate 9 is used in conjunction with the monitoring component.

[0063] In this embodiment, a pulling assembly is provided to drive the traction assembly to achieve traction of the wounded bone. The limiting hole 21 is used to install the metal rod. The long axis screw rod 19 is driven by the motor 25 to drive the slider 20 to move along the through hole 22. Since the metal rod is connected to the slider 20, the traction assembly is lifted by the traction rope 10 under the traction of the sliding plate 9 to achieve traction of the wounded bone.

[0064] Specifically, the long-axis screw rod 19 is movably arranged through the guide frame 8, one end of the long-axis screw rod 19 is fixedly connected to the output end of the motor 25, one end of the slider 20 is penetrated by a round hole, and the long-axis screw rod 19 is arranged through the round hole, wherein the thread on the outer side of the long-axis screw rod 19 is adapted to the thread groove of the round hole.

[0065] In this embodiment, both ends of the long-axis screw rod 19 are arranged to pass through the guide frame 8, and one end of the long-axis screw rod 19 is driven by the motor 25, thereby driving the slider 20.

[0066] Specifically, the guide assembly includes a square frame 12 and a guide wheel 11 . The square frame 12 is sleeved on one end of the guide frame 8 . The guide wheel 11 is symmetrically arranged on the top surface of the square frame 12 . The traction rope 10 is wound around the guide wheel 11 .

[0067] In this embodiment, a square sleeve frame 12 is provided for installing the guide wheel 11 , wherein the guide wheel 11 is connected to the long axis via a wheel seat, thereby achieving the guiding effect on the traction rope 10 .

[0068] Specifically, the monitoring component arranged at one end of the traction rope 10 includes a force sensor 23 and a guide ring 24. The force sensor 23 is arranged on the surface of the sliding plate 9, and the guide ring 24 is arranged on one side of the sliding plate 9. The traction rope 10 is arranged through the guide ring 24, and one end of the traction rope 10 is plugged into the force sensor 23.

[0069] In this embodiment, a force sensor 23 is provided to monitor the tension of the guide assembly at one end of the traction rope 10, and the guide ring 24 plays a role of limiting and lubricating. One end of the traction rope 10 can be detached from the force sensor 23, thereby facilitating the taking and placing of the traction rope 10.

[0070] Specifically, the traction assembly includes a trailer 14, a mounting groove 18, a mounting frame 17, a fixer 15, and a bone traction pin 16. The top of the trailer 14 is fixedly mounted to the bottom end of the traction rope 10, the mounting groove 18 is opened in pairs on the inner side of the trailer 14, the mounting frame 17 is plugged into the inner wall of the mounting groove 18, the fixer 15 is fixedly mounted to the inner end of the mounting frame 17, and circular sockets are equidistantly opened on the surface of the fixer 15. Both ends of the bone traction pin 16 are respectively plugged into the circular sockets.

[0071] In this embodiment, a traction frame 14 is provided to cooperate with one end of the traction rope 10 to achieve traction of the injured bone, and the mounting groove 18 is used to install the mounting frame 17 and the fixator 15. Both ends of the bone traction needle 16 pass through the circular plug holes opened on the surface of the fixator 15, and the bone traction needle 16 passes through the affected area.

[0072] A positioning method for an orthopedic trauma traction positioning device comprises the following steps:

[0073] Obtain CT images of the bone trauma traction site, fracture line characteristics, and bone displacement data;

[0074] Preprocess the fracture line features and bone displacement data;

[0075] The injured bone with (16) inserted therein is placed on the traction assembly for positioning;

[0076] Determine the size and position range of the traction force;

[0077] The traction force is monitored in real time and the monitoring data is fed back to the database for rehabilitation evaluation.

[0078] Specifically, the CT image is acquired as , where x, y, z are spatial coordinates;

[0079] The fracture line features are extracted by edge detection algorithm. Let the extracted fracture line pixel set be F = {ρ τ |τ=1,2,…,n),ρ τ =(x τ ,y τ , z τ );

[0080] The bone displacement data is obtained by comparing CT images at different time points. Assume that the initial bone position is B 0 , the current bone position is B 1 , bone displacement vector , whose components in three-dimensional space are expressed as

[0081] The fracture line feature F is subjected to noise reduction by using Gaussian filtering method. Let Gaussian filtering be G 0 (μ, π, ρ, σ), fracture line features after filtering

[0082] Normalize the bone displacement data and set the normalized displacement vector for:

[0083]

[0084] in

[0085] In this implementation, by accurately calculating and analyzing the fracture line morphology and bone fragment displacement distance, doctors can understand the fracture situation more comprehensively and accurately, providing a more detailed and reliable basis for diagnosis. Accurate analysis of the fracture line morphology and direction helps to determine the type and stability of the fracture, providing key information for formulating treatment plans.

[0086] The position coordinates of the bone to be injured are (x 0 ,y 0 , z 0 ), the positioning parameters of the distraction component are related to the location of the injured bone;

[0087] The adjustment of the traction assembly is achieved by displacement in three directions (Δ x , Δ y , Δ z ,) to achieve the ideal traction position of the injured bone (xtarget ,y target , z target ) then:

[0088] x target =x 0 +Δ x ;

[0089] y target =y 0 +Δ y ;

[0090] z target =z 0 +Δ z .

[0091] According to the mechanical model of the bone and the fracture type, the traction force F is assumed to be related to the mass m of the bone, the expected acceleration a of the bone, and the resistance coefficient μ of the fracture site. Newton's second law can be used to obtain:

[0092] F=m*a+μ*mg

[0093] Where g is the acceleration due to gravity.

[0094] Real-time monitoring and feedback evaluation related data:

[0095] F real :The actual traction force monitored in real time by the sensor reflects the actual situation of the force applied during the current traction process.

[0096] [F min , F max ]: The ideal traction force range corresponding to different rehabilitation stages stored in the database is the reference standard for evaluating whether the real-time traction force is appropriate.

[0097] The γ deviation rate is used to measure the real-time traction force F real The middle value of the ideal traction range The denominator is It is the half width of the ideal traction force range. Through such calculation, the relative size of the real-time traction force deviation from the ideal value can be intuitively reflected.

[0098] R = 1-K*γ, R is the degree of recovery, which is inversely proportional to the deviation rate γ.

[0099] K is the weight coefficient, which is determined by clinical experience. It adjusts the influence of the deviation rate on the degree of rehabilitation. Through this formula, the current degree of rehabilitation is evaluated according to the deviation between the real-time traction force and the ideal value, and F is used as the weight coefficient. real and R are fed back to the database to assist in subsequent treatment plan adjustment and rehabilitation evaluation.

[0100] In this implementation, accurate bone displacement data and traction force related data are calculated, so that doctors can formulate traction treatment plans more scientifically. According to the actual displacement of the bone and the characteristics of the fracture line, the traction force size and the range of action position are reasonably determined to improve the effect of traction treatment and promote fracture healing. The real-time monitored traction force size is compared with the ideal traction force range in the database, as well as the quantitative evaluation of the degree of rehabilitation. Doctors can adjust the treatment plan in time according to the feedback data to improve the rehabilitation effect.

[0101] It should be noted that, in this article, relational terms such as first and second, etc. are only used to distinguish one entity or operation from another entity or operation, and do not necessarily require or imply any such actual relationship or order between these entities or operations. Moreover, the terms "include", "comprise" or any other variants thereof are intended to cover non-exclusive inclusion, so that a process, method, article or device including a series of elements includes not only those elements, but also other elements not explicitly listed, or also includes elements inherent to such process, method, article or device.

[0102] The preferred embodiments of the present invention disclosed above are only used to help illustrate the present invention. The preferred embodiments do not describe all the details in detail, nor do they limit the invention to the specific implementation methods described. Obviously, many modifications and changes can be made according to the content of this specification. This specification selects and specifically describes these embodiments in order to better explain the principles and practical applications of the present invention, so that those skilled in the art can understand and use the present invention well. The present invention is limited only by the claims and their full scope and equivalents.

Claims

1. An orthopedic trauma traction positioning device, comprising a holder (1), characterized in that: A card slot (2) is provided at the bottom end of the card seat (1), a locking bolt (3) is provided through the top of the card seat (1), a sliding plate (9) is provided at the center of the card seat (1), a deflection ball (5) is movably installed inside the sliding plate (9), a support frame (6) is symmetrically provided on the outside of the deflection ball (5), a movable shaft (7) is fixedly installed on the top of the support frame (6), a guide frame (8) is movably installed on the top of the movable shaft (7), and the middle part of the guide frame (8) is movably installed. A pulling assembly is provided, a guiding assembly is provided at one end of the guide frame (8), a pulling rope (10) is provided on the guiding assembly, a pulling assembly is provided at one end of the pulling rope (10), an oblique bracket (13) is symmetrically provided on the outer side of the guide frame (8), a control console (27) is provided on one side of the card seat (1), the control console (27) is used in conjunction with the pulling assembly, a monitoring assembly is provided at one end of the pulling rope (10), and the monitoring assembly is data-connected to the control console (27).

2. The orthopedic trauma traction and positioning device according to claim 1, characterized in that: The pulling assembly comprises a limiting hole (21), a through hole (22), a long-axis screw rod (19), a slider (20), and a motor (25); a slotted hole is provided through one side of the guide frame (8); the middle portion of the guide frame (8) is hollowed out; the through hole (22) is opened transversely; the limiting hole (21) is symmetrically opened on the top surface of the guide frame (8); the slider (20) is movably installed transversely on the inner side of the through hole (22); the long-axis screw rod (19) is set through one end of the guide frame (8) and is located at the center; and the motor (25) is fixedly installed on one end of the guide frame (8).

3. The orthopedic trauma traction and positioning device according to claim 2, characterized in that: The long-axis screw rod (19) is movably arranged through the guide frame (8), one end of the long-axis screw rod (19) is fixedly connected to the output end of the motor (25), one end of the slider (20) is penetrated by a round hole, and the long-axis screw rod (19) is arranged to penetrate the round hole, wherein the thread on the outer side of the long-axis screw rod (19) is adapted to the thread groove of the round hole.

4. The orthopedic trauma traction and positioning device according to claim 2, characterized in that: A sliding plate (9) is fixedly mounted on the surface of the limiting hole (21), wherein the sliding plate (9) is connected via two groups of symmetrically arranged metal rods, the metal rods passing through the limiting hole (21), wherein the sliding plate (9) is used in conjunction with a monitoring component.

5. The orthopedic trauma traction and positioning device according to claim 1, characterized in that: The guide assembly comprises a square sleeve frame (12) and a guide wheel (11); the square sleeve frame (12) is sleeved on one end of the guide frame (8); the guide wheel (11) is symmetrically arranged on the top surface of the square sleeve frame (12); and the traction rope (10) is wound around the guide wheel (11).

6. The orthopedic trauma traction and positioning device according to claim 1, characterized in that: The monitoring component arranged at one end of the traction rope (10) comprises a force sensor (23) and a guide ring (24); the force sensor (23) is arranged on the surface of the sliding plate (9); the guide ring (24) is arranged on one side of the sliding plate (9); the traction rope (10) passes through the guide ring (24); and one end of the traction rope (10) is plugged into the force sensor (23).

7. The orthopedic trauma traction and positioning device according to claim 1, characterized in that: The traction assembly comprises a towing frame (14), a mounting groove (18), a mounting frame (17), a fixer (15), and a bone traction pin (16); the top end of the towing frame (14) is fixedly mounted to the bottom end of the traction rope (10); the mounting groove (18) is arranged on the inner side of the towing frame (14); the mounting frame (17) is plugged into the inner wall of the mounting groove (18); the fixer (15) is fixedly mounted to the inner end of the mounting frame (17); the surface of the fixer (15) is provided with circular plug holes at equal intervals; the two ends of the bone traction pin (16) are respectively plugged into the circular plug holes.

8. A positioning method applied to the orthopedic trauma traction positioning device according to any one of claims 1 to 7, characterized in that: The following steps are involved: Obtain CT images of the bone trauma traction site, fracture line characteristics, and bone displacement data; Preprocess the fracture line features and bone displacement data; Placing the injured bone with the bone traction pin (16) inserted in it on the traction assembly for positioning; Determine the size and position range of the traction force; The traction force is monitored in real time and the monitoring data is fed back to the database for rehabilitation evaluation.

9. A positioning method for an orthopedic trauma traction positioning device according to claim 8, characterized in that: The CT image is obtained as Where x, y, z are spatial coordinates; The fracture line features are extracted by edge detection algorithm. Let the extracted fracture line pixel set be F = {ρ τ |τ=1,2,...,n),ρ τ =(x τ ,y τ , z τ ); The bone displacement data is obtained by comparing CT images at different time points. Assume that the initial bone position is B0, the current bone position is B1, and the bone displacement vector Its components in three-dimensional space are expressed as The fracture line feature F is subjected to noise reduction by using Gaussian filtering. The Gaussian filter is set as G0(μ, π, ρ, σ). Normalize the bone displacement data and set the normalized displacement vector for: in 10. The orthopedic trauma traction positioning device and positioning method thereof according to claim 8, characterized in that: The position coordinates of the wound bone placed on the traction component are assumed to be (x0, y0, z0), and the positioning parameters of the traction component are related to the position of the wound bone; The adjustment of the traction assembly is achieved by displacement in three directions (Δ x , Δ y , Δ z ,) to achieve the ideal traction position of the injured bone (x target ,y target , z target ) then: x target =x0+Δ x ; y target =y0+Δ y ; With target =z0+Δ z 。 According to the mechanical model of the bone and the fracture type, the traction force F is assumed to be related to the mass m of the bone, the expected acceleration a of the bone, and the resistance coefficient μ of the fracture site. Newton's second law can be used to obtain: F=m*a+μ*mg Where g is the acceleration due to gravity. Real-time monitoring and feedback evaluation related data: F real :The actual traction force monitored in real time by the sensor reflects the actual situation of the force applied during the current traction process. [F min , F max ]: The ideal traction force range corresponding to different rehabilitation stages stored in the database is the reference standard for evaluating whether the real-time traction force is appropriate. The γ deviation rate is used to measure the real-time traction force F real The middle value of the ideal traction range The denominator is is the half width of the ideal traction range, Through such calculation, the relative size of the real-time traction force deviation from the ideal value can be intuitively reflected. R = 1-K*γ, R is the degree of recovery, which is inversely proportional to the deviation rate γ. K is the weight coefficient, which is determined by clinical experience. It adjusts the influence of the deviation rate on the degree of rehabilitation. Through this formula, the current degree of rehabilitation is evaluated according to the deviation between the real-time traction force and the ideal value, and F is used as the weight coefficient. real and R are fed back to the database to assist in subsequent treatment plan adjustment and rehabilitation evaluation.

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