Orthopedic clinical variable position support

Abstract

The application discloses an orthopedic clinical displacement support, a first arc plate is installed on the upper end of a lifting column and can adjust the height, an upper arc plate is rotationally connected with the first arc plate, a pressing arc plate is installed on the lower side of the upper arc plate and forms a moving pair, a sliding table is installed on the top end of the lifting column and can adjust the interval of long bone sections, a support frame is fixedly installed on the front end of the sliding table and rotationally connected with a swing frame, a rotating frame is installed on the inner side of the swing frame and forms a rotating pair, a rotary frame is installed on the lower end of the rotating frame and forms a rotating pair, a second arc plate is fixedly installed on the upper side of the rotary frame, two clamping plates are rotationally installed on the upper end of the two sides of the second arc plate, respectively, two arc sliding strips are installed on the lower side of the second arc plate and form a rotating pair, the two arc sliding strips are connected with the two clamping plates through two connecting rods, respectively, a second motor can drive the two arc sliding strips to rotate reversely at the same time, and a control system can collect stereoscopic image information of a bone fracture position through a medical X-ray machine and control the displacement support to complete automatic reduction of the long bone fracture.

Description

Technical Field

[0001] This invention relates to the field of medical device technology, specifically to orthopedic clinical displacement stents. Background Technology

[0002] Long bone fractures are often caused by external trauma such as traffic accidents and falls from heights. Fracture reduction requires restoring limb length, alignment, and correcting rotational deformities. Due to muscle traction, bone shaft shortening and angular displacement are common at the fracture site. Therefore, bone shaft support and positional adjustment are necessary during reduction. Traditional methods involve using support pads to adjust the height of the fracture site and relying on medical staff to manually reduce the bone shaft. This not only increases the workload of medical personnel but also easily leads to reduction deviations, often resulting in unsatisfactory outcomes. Standardizing and quantifying the reduction of bone shaft fractures has always been a challenge in long bone fracture reduction surgery. Given these circumstances, designing an automated orthopedic clinical displacement support with adjustable height, angle, and spacing has significant social implications. Summary of the Invention

[0003] To address the shortcomings of existing technologies, the present invention aims to provide an orthopedic clinical displacement support that enables five degrees of freedom adjustment of the space at the fracture site of long bones. This allows for adjustment of not only the height and spacing of the fracture site but also pitch, twisting, and lateral adjustment, thus fully meeting the requirements for long bone fracture reduction.

[0004] The technical solution adopted in this invention is as follows: an orthopedic clinical displacement bracket, characterized in that: four foot pads for support and leveling are installed on the lower side of the base, and a hollow square guide cylinder is vertically arranged on the upper side of the base; a lifting column is installed inside the guide cylinder and can move up and down and be positioned, and a first arc plate is provided at the upper end of the lifting column for providing support for the amputated limb of the patient; the left end of the upper arc plate is rotatably connected to the first arc plate, and the upper arc plate and the first arc plate can be closed and locked by a buckle; a guide hole is provided on the upper side of the upper arc plate, and a stud on the upper side of the pressure arc plate is installed in the guide hole and forms a sliding pair; a nut is installed on the upper side of the upper arc plate and forms a threaded pair with the stud; rotating the nut can raise and lower the pressure arc plate to fix the upper amputated limb; a slide is fixedly installed at the top of the lifting column and located below the first arc plate, and the slide can adjust the spacing of the long bone cross sections; a support frame is fixedly installed at the front end of the slide and rotatably connected to the swing frame; two electric cylinders installed on the lower side of the support frame can drive the rotation of the swing frame to realize the adjustment of the pitch angle of the lower amputated limb; the rotating frame is installed on... The swing frame forms a rotating joint on its inner side. A first motor installed at the lower end of the swing frame drives the rotation of the rotating frame through the meshing of a first gear and a first crown rack, thereby adjusting the torsional angle of the lower amputated limb. A rotary frame is installed at the lower end of the rotating frame and forms a rotating joint. A third motor installed at the front of the rotating frame drives the rotation of the rotary frame through the meshing of a third gear and a large gear, thereby adjusting the lateral swing angle of the lower amputated limb. A second arc plate is fixedly installed on the upper side of the rotary frame. Two clamping plates are rotatably installed on the upper ends of the two sides of the second arc plate. Two arc sliding bars are installed on the lower side of the second arc plate and form a rotating joint. The two arc sliding bars are connected to the two clamping plates through two connecting rods. A second motor installed on the lower side of the rotary frame drives the two arc sliding bars to rotate in opposite directions simultaneously through a gear meshing structure, thereby enabling the two clamping plates to fix the lower amputated limb. The control system can acquire three-dimensional image information of the fracture location through a medical X-ray machine, process the image information, and transmit the execution data to each electrical execution component, thereby completing the automatic reduction of the long bone fracture.

[0005] Preferably, the guide hole is an irregular circular hole structure with a flat surface on the left side, and the stud has a guide surface on the left side. The stud is coaxially installed in the guide hole to form a sliding pair.

[0006] Preferably, the nut is provided with multiple actuating blocks at equal intervals on the outer circumference, which makes it easy to rotate the nut by hand.

[0007] Preferably, the slider in the slide is located on the lower side and is fixedly installed on the upper end of the lifting column. The slide can move back and forth to adjust the spacing between the long bone sections.

[0008] Preferably, each of the two slide bars has a crown rack on its side. The two crown racks are respectively located on both sides of the second gear and form a meshing transmission, so that the second motor can drive the two slide bars to rotate in opposite directions simultaneously through the second gear.

[0009] Preferably, each of the two clamps has three fingers at its upper end, with gaps between the fingers, and the fingers on one clamp correspond to the gaps on the other clamp.

[0010] The beneficial effects of this invention are as follows: ① The upper arc plate and the first arc plate are rotatably connected and can be locked together by a buckle. Rotating the nut can move the pressure arc plate downward, thus fixing the limb above the fracture site. The structure is simple, easy to use, and highly applicable. ② The displacement bracket has five spatial degrees of freedom, including an adjustable lifting column, an adjustable slide table, adjustable cross-sectional spacing, two electric cylinders, adjustable horizontal axis pitch angle, an adjustable vertical axis torsion angle, and an adjustable vertical axis sway angle. It has high flexibility and can achieve good reduction of long bones. ③ The control system can collect three-dimensional image information of the fracture site through a medical X-ray machine. After processing the image information, the execution data is transmitted to each electrical execution component, thereby completing the automatic reduction of long bone fractures. It can achieve standardized and quantitative reduction treatment of long bone fractures, avoid the influence of subjective human factors, and reduce the workload of medical staff. It has the advantages of high automation and high intelligence. Attached Figure Description

[0011] Figure 1 This is a schematic diagram of the overall structure of the present invention.

[0012] Figure 2 This is a magnified cross-sectional schematic diagram of the arc-pressing plate location.

[0013] Figure 3 This is a partial enlarged cross-sectional schematic diagram of the support frame location.

[0014] Figure 4 for Figure 5 A schematic diagram of the cross-sectional structure at position AA.

[0015] Figure 5 for Figure 4 A schematic diagram of the cross-sectional structure at position BB in the middle.

[0016] Figure 6 This is a schematic diagram of the swing frame.

[0017] Figure 7 This is a schematic diagram of the rotating frame.

[0018] Figure 8 This is a schematic diagram of the slewing frame.

[0019] Figure 9 This is a schematic diagram of the second arc plate.

[0020] Reference numerals: 1. Base, 2. Guide cylinder, 3. Lifting column, 3.1. Connecting plate, 4. Buckle, 5. Slide table, 5.1. Slider, 6. First arc plate, 7. Pressing arc plate, 7.1. Stud, 7.2. Guide surface, 8. Nut, 9. Upper arc plate, 9.1. Guide support rod, 10. Second clamping plate, 10.1. Sixth ear, 11. Rotating frame, 11.1. Arc-shaped guide rail, 11.2. First crown rack, 11.3. Second mounting plate, 12. Second arc plate, 12.1. First arc guide rail, 12.2. Second arc guide rail, 13. First gear, 14. First electric cylinder, 15. First motor, 16. Support frame, 16.1 square hole, 16.2 first ear, 16.3 second ear, 17 swing frame, 17.1 third ear, 17.2 fourth ear, 17.3 arc slide groove, 17.4 first mounting plate, 18 third motor, 19 first connecting rod, 20 first clamping plate, 20.1 fifth ear, 21 second electric cylinder, 22 rotating frame, 22.1 large gear, 22.2 clearance slot, 23 second motor, 24 second arc slide bar, 24.1 third crown rack, 25 second connecting rod, 26 second gear, 27 first arc slide bar, 28 third gear. Detailed Implementation

[0021] The present invention will be further described below with reference to specific embodiments. The illustrative embodiments and descriptions herein are used to explain the present invention, but are not intended to limit the present invention.

[0022] like Figure 1As shown, the orthopedic clinical displacement support includes a base 1, a guide cylinder 2, a lifting column 3, a latch 4, a slide 5, a first arc plate 6, a pressure arc plate 7, a nut 8, an upper arc plate 9, a second clamping plate 10, a rotating frame 11, a second arc plate 12, a first gear 13, a first electric cylinder 14, a first motor 15, a support frame 16, a swing frame 17, a third motor 18, a first connecting rod 19, a first clamping plate 20, a second electric cylinder 21, a rotating frame 22, a second motor 23, a second arc slide bar 24, a second connecting rod 25, a second gear 26, a first arc slide bar 27, and a third gear 28. The base 1 has a front-wide, rear-narrow structure, with four foot pads installed on its lower side. These four foot pads provide stable support to the ground and allow for leveling of the displacement support. A square guide cylinder 2 is vertically installed on the upper rear end of the base 1. The guide cylinder 2 has a hollow interior and its lower end is fixedly connected to the base 1. The lifting column 3 is a square columnar structure with a nut installed at its lower end. The lifting column 3 is installed inside the guide cylinder 2 and can form a movable pair. An electric lifting structure is installed between the lifting column 3 and the guide cylinder 2, which can realize the up and down movement and positioning of the lifting column 3. Two connecting plates 3.1 are provided on both sides of the upper end of the lifting column 3. The upper end of the two connecting plates 3.1 is provided with a first arc plate 6. The first arc plate 6 is a semi-circular structure, which can be used to place the upper amputated limb for the patient. The upper arc plate 9 is a semi-circular structure, and the radius of its lower semi-circular surface is equal to the radius of the upper semi-circular surface of the first arc plate 6. The left end of the upper arc plate 9 is rotatably connected to the left end of the first arc plate 6. The hook and the hook structure of the buckle 4 are installed on the right side of the first arc plate 6. The hook structure of the buckle 4 is installed on the right side of the upper arc plate 9. After the upper arc plate 9 is flipped to the right and closed with the first arc plate 6, it can form a closed ring. The hook of the buckle 4 can be flipped upward and hooked onto the hook structure. Pressing down the hook structure can realize the closure and locking of the upper arc plate 9 and the first arc plate 6.

[0023] like Figure 2As shown, the upper arc plate 9 has a guide hole vertically located at the middle of its upper side. The guide hole is an irregular circular hole with a flat surface on the left side. A guide rod 9.1 is also provided on the upper side of the upper arc plate 9. The guide rod 9.1 has a vertical guide hole, which is identical in structure to and coaxial with the guide hole on the upper side of the upper arc plate 9. A gap exists between the guide rod 9.1 and the upper side of the upper arc plate 9. The nut 8 has multiple actuating blocks evenly spaced around its outer circumference for easy manual rotation. A threaded hole is located at the center of the nut 8. The nut 8 is installed in the gap between the guide rod 9.1 and the upper side of the upper arc plate 9, and the threaded hole at the center of the nut 8 is coaxial with the guide hole on the upper side of the upper arc plate 9. The lower part of the pressure plate 7... The end is an arc-shaped plate structure. A stud 7.1 is vertically located at the center of the upper side of the pressure plate 7. The stud 7.1 has a threaded structure on its outer side, and a guide surface 7.2 is located on the left side of the stud 7.1. The guide surface 7.2 is flat. The pressure plate 7 is installed on the lower side of the upper arc plate 9, and the stud 7.1 is coaxially installed in two guide holes on the upper arc plate 9 and the guide support rod 9.1 and can move up and down. The guide surface 7.2 fits against the flat surface on the left side of the guide hole, thereby preventing the stud 7.1 from rotating. At the same time, the stud 7.1 is coaxially connected with the threaded hole in the center of the nut 8 to form a threaded pair. Therefore, rotating the nut 8 clockwise can move the pressure plate 7 downward and press the upper side of the amputated limb of the patient to fix the limb and facilitate subsequent long bone reduction.

[0024] like Figure 1 As shown, a slider 5.1 is provided on the lower side of the slide table 5. The slider 5.1 and the slide table 5 form a sliding pair. The slider 5.1 is fixedly installed between the two connecting plates 3.1 at the top of the lifting column 3 and located on the lower side of the first arc plate 6. The slide table 5 integrates a drive motor and an encoder. The drive motor can realize the forward and backward movement and positioning of the slide table 5, and the encoder can record the position of the slide table 5 and transmit the data to the control system.

[0025] like Figure 3 , Figure 6As shown, the support frame 16 has a square hole 16.1 longitudinally located at the middle of its rear end, and the square hole 16.1 is fixedly connected to the front end of the slide table 5. The support frame 16 has two coaxial circular holes on both sides of its upper end, and a first ear 16.2 and a second ear 16.3 are respectively located on the left and right sides of its lower side. The swing frame 17 has two coaxial circular shafts on both sides of its upper end, and the two circular shafts are rotatably connected to the two circular holes on both sides of the upper end of the support frame 16. The swing frame 17 has a fourth ear 17.2 and a third ear 17.1 on its left and right sides, respectively. The structure and position of the third ear 17.1 and the fourth ear 17.2 are related to... The longitudinal vertical plane of the swing frame 17 is mirror-symmetrical from left to right. The interior of the swing frame 17 is provided with a semi-circular arc groove 17.3, and the cross-section of the arc groove 17.3 is T-shaped. The lower end of the swing frame 17 is provided with a first mounting plate 17.4. The rear end of the first electric cylinder 14 is rotatably connected to the first ear 16.2, and the front end of the first electric cylinder 14 is rotatably connected to the third ear 17.1. The rear end of the second electric cylinder 21 is rotatably connected to the second ear 16.3, and the front end of the second electric cylinder 21 is rotatably connected to the fourth ear 17.2. Thus, the pitch angle of the swing frame 17 can be adjusted by the simultaneous extension and retraction of the first electric cylinder 14 and the second electric cylinder 21.

[0026] like Figure 3 , Figure 6 As shown, the rotating frame 11 has a notch at its upper end, and an arc-shaped guide rail 11.1 is provided on the outer side of the rotating frame 11. The cross-section of the arc-shaped guide rail 11.1 is T-shaped, and the size of the T-shape is the same as the T-shaped cross-sectional size of the arc-shaped slide groove 17.3. The lower side of the arc-shaped guide rail 11.1 is a broken structure. The rear side of the rotating frame 11 is provided with a first crown rack 11.2. The lower end of the rotating frame 11 is provided with a vertical through circular hole, and the front side of the through circular hole is provided with a vertical second mounting plate 11.3. The rotating frame 11 and the swing frame 17 are coaxially mounted, and the arc-shaped guide rail 11.1 is notch at its upper end, and the arc-shaped guide rail 11.1 is notch at its lower end ... The rail 11.1 is installed in the arc groove 17.3 so that the rotating frame 11 and the swing frame 17 form a rotating pair. The first motor 15 integrates an encoder and a brake, which can achieve precise angular rotation and locking positioning. The first motor 15 is fixedly installed on the first mounting plate 17.4 by screws. The first gear 13 is coaxially and tightly connected to the output shaft of the first motor 15, and the first gear 13 meshes with the first crown rack 11.2 to form a gear transmission, so that the first motor 15 can drive the longitudinal axis of the rotating frame 11 to rotate.

[0027] like Figure 5 , Figure 8As shown, the upper end of the rotary frame 22 is an arc-shaped structure with a longitudinal axis. The lower side of the arc-shaped structure is provided with a clearance groove 22.2 in the left and right directions. A large gear 22.1 is provided in the middle of the rotary frame 22. The rotary frame 22 is installed in the through circular hole at the lower end of the rotating frame 11 and forms a rotating pair. The third motor 18 integrates an encoder and a brake, which can achieve precise angle rotation and locking positioning. The third motor 18 is fixedly installed on the second mounting plate 11.3 by screws. The third gear 28 is coaxially and tightly connected to the output shaft of the third motor 18. The third gear 28 meshes with the large gear 22.1 to form a gear transmission, so that the third motor 18 can drive the vertical axis of the rotary frame 22 to swing horizontally. The second motor 23 integrates an encoder and a brake, which can achieve precise angle rotation and locking positioning. The second motor 23 is fixedly installed inside the lower side of the rotary frame 22. The second gear 26 is coaxially and tightly connected to the output shaft of the second motor 23.

[0028] like Figure 4 , Figure 5 , Figure 9 As shown, the second arc plate 12 has an arc surface structure, with a first arc guide rail 12.1 and a second arc guide rail 12.2 of T-shaped cross-section on its lower circumferential side. The front end of the second arc plate 12 has a forward-facing semi-circular boss. The second arc plate 12 is mounted on the arc surface structure at the upper end of the rotating frame 22 and the two are fastened together by screws. The first arc slide bar 27 has an arc strip structure with a guide groove of T-shaped cross-section on its inner side. The first arc slide bar 27 is mounted on the lower side of the second arc plate 12, and the guide groove on the inner side of the first arc slide bar 27 is fitted with the first arc guide rail 12.1 to allow the first arc slide bar 27 to rotate relative to the second arc plate 12. A second crown rack is provided on the left side of the first arc slide bar 27, and the second crown rack meshes with the second gear 26 to form a gear transmission. The second arc slide bar 24 is an arc-shaped structure with a T-shaped guide groove on its inner side. The second arc slide bar 24 is installed on the lower side of the second arc plate 12, and the guide groove on the inner side of the second arc slide bar 24 is fitted with the second arc guide rail 12.2, so that the second arc slide bar 24 can rotate relative to the second arc plate 12. The right side of the second arc slide bar 24 is provided with a third crown rack 24.1, and the third crown rack 24.1 meshes with the second gear 26 to form a gear transmission. The first arc slide bar 27 has the same structure as the second arc slide bar 24, but the installation direction is opposite. Thus, the second motor 23 can drive the rotation of the first arc slide bar 27 and the second arc slide bar 24 simultaneously through the second gear 26, and the rotation directions of the first arc slide bar 27 and the second arc slide bar 24 are always opposite.

[0029] like Figure 3 , Figure 4As shown, the first clamping plate 20 has an arc-shaped structure, with a fifth ear 20.1 on its right side. Three fingers are positioned at the upper end of the first clamping plate 20, with a gap between the three fingers. The lower end of the first clamping plate 20 is rotatably connected to the right end of the second arc plate 12. The upper end of the first connecting rod 19 is rotatably connected to the fifth ear 20.1, and the lower end of the first connecting rod 19 is rotatably connected to the upper end of the first arc-shaped slide bar 27. The second clamping plate 10 has an arc-shaped structure, with a sixth ear 10.1 on its left side. Three fingers are positioned at the upper end of the second clamping plate 10, with a gap between the three fingers. The lower end of the first splint 20 is rotatably connected to the left end of the second arc plate 12; the upper end of the second connecting rod 25 is rotatably connected to the sixth ear 10.1, and the lower end of the second connecting rod 25 is rotatably connected to the upper end of the second arc slide bar 24; and the gap between the fingers at the upper end of the first splint 20 and the fingers at the upper end of the second splint 10 corresponds to the gap between the fingers at the upper end of the second splint 10 and the fingers at the upper end of the first splint 20; thus, the second motor 23 can drive the clamping action of the first splint and the second splint 10 through the first arc slide bar 27 and the second arc slide bar 24 to fix the lower amputated limb of the patient.

[0030] Example: When it is necessary to reduce a long bone fracture in a patient, follow these steps:

[0031] (1) Place the patient on the operating table and fix him / her in place, and place the fractured limb outside the operating table;

[0032] (2) Place the displacement brace on the lower side of the fractured limb, open the buckle 4 and flip the upper arc plate 9 to the left, open the first splint 20 and the second splint 10 outward, adjust the height of the lifting column 3 so that the upper limb of the patient's fracture position is placed inside the first arc plate 6, and the lower limb of the patient's fracture position is placed inside the second arc plate 12.

[0033] (3) After flipping the upper arc plate 9 to the right, lock the buckle 4 so that the upper arc plate 9 and the first arc plate 6 are closed and locked. Turn the nut 8 clockwise to move the pressure plate 7 and fix the upper limb of the patient's fracture position. The second motor 23 rotates to make the first splint 20 and the second splint 10 close inward and fix the lower limb of the patient's fracture position.

[0034] (4) A medical X-ray machine is used to capture images of the fracture site and transmit the spatial position information of the fracture site to the control system. After analyzing the data, the control system transmits the execution data to each electrical execution component, so that the lower limb at the fracture site can be adjusted accordingly in terms of spacing, pitch angle, torsion angle and lateral angle, thereby completing the automatic reduction of long bone fracture.

Claims

1. An orthopedic clinical displacement stent, characterized in that, include: The base has four feet for support and leveling, and a hollow square guide tube is vertically installed on the upper side of the base. The lifting column is installed inside the guide cylinder and can move up and down and be positioned. The upper end of the lifting column is equipped with a first arc plate to provide support for the patient's amputated limb. The upper arc plate is rotatably connected to the first arc plate at its left end, and the upper arc plate and the first arc plate are locked together by a buckle. The upper arc plate has a guide hole on its upper side. The stud on the upper side of the pressure arc plate is installed in the guide hole and forms a sliding pair. The nut is installed on the upper side of the upper arc plate and forms a threaded pair with the stud. Rotating the nut can raise and lower the pressure arc plate to fix the upper broken limb. The slide is fixedly installed at the top of the lifting column and located below the first arc plate. The slide can adjust the spacing of the long bone cross sections. The support frame is fixedly installed at the front end of the slide table and rotatably connected to the swing frame. Two electric cylinders installed on the lower side of the support frame can drive the rotation of the swing frame, thereby realizing the adjustment of the pitch angle of the lower amputated limb. The rotating frame is coaxially mounted with the swing frame, and the arc-shaped guide rail on the outside of the rotating frame is installed in the arc-shaped slide groove inside the swing frame, so that the rotating frame and the swing frame form a rotating pair. The first motor installed at the lower end of the swing frame drives the rotation of the rotating frame through the meshing of the first gear and the first crown rack, thereby realizing the adjustment of the torsion angle of the lower broken limb. The rotating frame is installed in the through hole at the lower end of the rotating frame and forms a rotating pair. The third motor installed on the front side of the rotating frame drives the rotation of the rotating frame through the meshing of the third gear and the large gear, thereby realizing the adjustment of the lateral swing angle of the lower broken limb. The second arc plate is fixedly installed on the upper side of the rotating frame. Two clamping plates are rotatably installed on the upper ends of both sides of the second arc plate. Two arc sliding bars are installed on the lower side of the second arc plate and form a rotating pair. The two arc sliding bars are connected to the two clamping plates through two connecting rods. The second motor installed on the lower side of the rotating frame drives the two arc sliding bars to rotate in opposite directions simultaneously through a gear meshing structure, so that the two clamping plates can fix the lower broken limb. The control system acquires three-dimensional images of the fracture location using a medical X-ray machine, processes the image information, and transmits the execution data to various electrical actuators, thereby completing the automatic reduction of long bone fractures.

2. The orthopedic clinical displacement stent according to claim 1, characterized in that: The guide hole is an irregular circular hole structure with a flat surface on the left side. The stud has a guide surface on the left side, and the stud is coaxially installed in the guide hole to form a sliding pair.

3. The orthopedic clinical displacement stent according to claim 1, characterized in that: The nut is provided with multiple actuating blocks at equal intervals on its outer circumference, which makes it easy to rotate the nut by hand.

4. The orthopedic clinical displacement stent according to claim 1, characterized in that: The slider in the slide is located on the lower side and is fixedly installed on the upper end of the lifting column. The slide can move back and forth to adjust the spacing between the long bone sections.

5. The orthopedic clinical displacement stent according to claim 1, characterized in that: Each of the two arc-shaped slide bars has a crown rack on its side. The two crown racks are respectively set on both sides of the second gear and form a meshing transmission, so that the second motor can drive the two arc-shaped slide bars to rotate in opposite directions at the same time through the second gear.

6. The orthopedic clinical displacement stent according to claim 1, characterized in that: Each of the two clamps has three fingers at its upper end, with gaps between the fingers. The fingers on one clamp correspond to the gaps on the other clamp.

Images