CN114569228A - Leg fracture reduction machine - Google Patents
Leg fracture reduction machine Download PDFInfo
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- CN114569228A CN114569228A CN202210211353.0A CN202210211353A CN114569228A CN 114569228 A CN114569228 A CN 114569228A CN 202210211353 A CN202210211353 A CN 202210211353A CN 114569228 A CN114569228 A CN 114569228A
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- 206010061599 Lower limb fracture Diseases 0.000 title claims abstract description 29
- 230000001360 synchronised effect Effects 0.000 claims abstract description 30
- 230000005540 biological transmission Effects 0.000 claims abstract description 10
- 206010017076 Fracture Diseases 0.000 claims description 36
- 230000008093 supporting effect Effects 0.000 claims description 16
- 238000012546 transfer Methods 0.000 claims description 10
- 230000006378 damage Effects 0.000 claims description 7
- 230000003139 buffering effect Effects 0.000 claims description 3
- 230000006835 compression Effects 0.000 claims description 3
- 238000007906 compression Methods 0.000 claims description 3
- 238000011002 quantification Methods 0.000 claims 1
- 238000003756 stirring Methods 0.000 claims 1
- 208000010392 Bone Fractures Diseases 0.000 description 35
- 210000002414 leg Anatomy 0.000 description 7
- 238000005516 engineering process Methods 0.000 description 6
- 238000001356 surgical procedure Methods 0.000 description 4
- 230000000694 effects Effects 0.000 description 3
- 230000035876 healing Effects 0.000 description 3
- 208000015181 infectious disease Diseases 0.000 description 3
- 208000014674 injury Diseases 0.000 description 3
- 208000027418 Wounds and injury Diseases 0.000 description 2
- 238000005452 bending Methods 0.000 description 2
- 210000000988 bone and bone Anatomy 0.000 description 2
- 238000009434 installation Methods 0.000 description 2
- 238000000034 method Methods 0.000 description 2
- 230000002093 peripheral effect Effects 0.000 description 2
- 206010020649 Hyperkeratosis Diseases 0.000 description 1
- 208000035965 Postoperative Complications Diseases 0.000 description 1
- 229910000831 Steel Inorganic materials 0.000 description 1
- 230000002924 anti-infective effect Effects 0.000 description 1
- 238000013459 approach Methods 0.000 description 1
- 230000009286 beneficial effect Effects 0.000 description 1
- 230000037237 body shape Effects 0.000 description 1
- 230000007547 defect Effects 0.000 description 1
- 210000003275 diaphysis Anatomy 0.000 description 1
- 238000006073 displacement reaction Methods 0.000 description 1
- 238000002513 implantation Methods 0.000 description 1
- 230000010354 integration Effects 0.000 description 1
- 210000003141 lower extremity Anatomy 0.000 description 1
- 210000001699 lower leg Anatomy 0.000 description 1
- 238000012423 maintenance Methods 0.000 description 1
- 210000003205 muscle Anatomy 0.000 description 1
- 238000011160 research Methods 0.000 description 1
- 238000004904 shortening Methods 0.000 description 1
- 210000004872 soft tissue Anatomy 0.000 description 1
- 239000010959 steel Substances 0.000 description 1
- 206010043827 tibia fracture Diseases 0.000 description 1
- 230000008733 trauma Effects 0.000 description 1
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- A—HUMAN NECESSITIES
- A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
- A61B—DIAGNOSIS; SURGERY; IDENTIFICATION
- A61B17/00—Surgical instruments, devices or methods, e.g. tourniquets
- A61B17/56—Surgical instruments or methods for treatment of bones or joints; Devices specially adapted therefor
- A61B17/58—Surgical instruments or methods for treatment of bones or joints; Devices specially adapted therefor for osteosynthesis, e.g. bone plates, screws, setting implements or the like
- A61B17/88—Osteosynthesis instruments; Methods or means for implanting or extracting internal or external fixation devices
- A61B17/8866—Osteosynthesis instruments; Methods or means for implanting or extracting internal or external fixation devices for gripping or pushing bones, e.g. approximators
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- Health & Medical Sciences (AREA)
- Life Sciences & Earth Sciences (AREA)
- Orthopedic Medicine & Surgery (AREA)
- Surgery (AREA)
- Medical Informatics (AREA)
- Engineering & Computer Science (AREA)
- Biomedical Technology (AREA)
- Heart & Thoracic Surgery (AREA)
- Nuclear Medicine, Radiotherapy & Molecular Imaging (AREA)
- Molecular Biology (AREA)
- Animal Behavior & Ethology (AREA)
- General Health & Medical Sciences (AREA)
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- Veterinary Medicine (AREA)
- Rehabilitation Tools (AREA)
- Accommodation For Nursing Or Treatment Tables (AREA)
Abstract
The invention discloses a leg fracture repositor, wherein four horseshoe wheels are arranged on the lower side of a frame, a first sliding table can drive a longitudinal sliding plate to move back and forth, a first motor can drive a transverse sliding plate to move transversely, a lifting column is arranged on the transverse sliding plate and forms a revolute pair, the longitudinal guide frame is rotationally connected with a U-shaped frame at the top end of the lifting column, an electric cylinder can drive the longitudinal guide frame to rotate in a pitching manner, a support plate can provide support for the legs of a patient and is rotationally arranged at the upper end of the U-shaped frame, a sliding frame is arranged on the upper side of the longitudinal guide frame and forms a revolute pair, a second motor can drive the longitudinal movement of the sliding frame through a second synchronous belt, a ring-type pressure sensor and a plane thrust bearing are coaxially arranged at the upper end of the sliding frame together with a rotating shaft, a telescopic rod and a rotating shaft form a spline transmission structure, a foot rest is used for fixing the legs of the patient and is fixedly connected with the telescopic rod, a third motor can drive the longitudinal rotation of the foot rest, and a control system is used for controlling the electrified operation of the leg fracture repositor, Establishing a personal file of the patient, establishing a reset scheme and recording reset data.
Description
Technical Field
The invention relates to the technical field of medical instruments, in particular to a leg fracture reduction machine.
Background
Tibiofibular diaphysis fracture is a more common fracture type in clinic, accounts for 24% of adult general fracture, and other types of fractures except for fracture need surgical treatment, the traditional surgical mode is to treat the fracture part by adopting incision reduction internal fixation technology, and mostly adopts steel plates as internal fixators to enable the bones to be integrated together when being healed, but after the surgery, the phenomena of incision infection, internal fixture exposure, fracture healing delay, poor reduction and the like are easy to occur due to the factors of incision exposure, biological environment damage of fracture broken ends, soft tissue anti-infection capability reduction and the like, so in the clinical surgery process, the key points of the surgery are to improve the fracture healing rate of patients and reduce infection; the closed reduction intramedullary nail fixing technology is found to be the best treatment approach for the tibia fracture patient in clinical research, compared with an incision reduction mode, the closed reduction intramedullary nail fixing technology has the advantages of small operative injury, shortened fracture healing time, reduced infection rate, low incidence rate of postoperative complications, effective maintenance of lower limb length and axial stability and the like, the intramedullary nail is fixed on a backbone midline, the bending stress is small, the incidence rate of bending and fracture is reduced, meanwhile, callus growth can be stimulated due to elastic fixation, the functional rehabilitation exercise of the patient can be facilitated as early as possible, the life quality of the patient can be obviously improved, and the closed reduction intramedullary nail fixing technology has good clinical application and popularization values.
The bone fracture end is easy to cause backbone shortening and angulation displacement due to the traction of peripheral muscles after fracture, the satisfactory effect is often difficult to achieve by bare-handed reduction in the operation, particularly, patients with trauma over one week have difficulty in reduction in the operation, and the reduction state cannot be maintained even if the length of the patients is temporarily recovered; how to use the indirect reduction technology to achieve the satisfactory fracture reduction effect and maintain the reduction state in the operation is convenient for the minimally invasive implantation of the intramedullary nail, which is always the difficulty of the closed reduction intramedullary nail fixing technology; under the condition of the prior art, the traction bed is mostly used for clinically drawing the broken part of the skeleton, an assistant operating the traction bed needs to continuously adjust according to the instruction of a doctor of a main scalpel, time and labor are wasted, the efficiency is low, the phenomenon of transitional drawing is easy to occur, and the pain and the injury of a patient are increased.
Disclosure of Invention
In order to solve the defects of the prior art, the invention aims to provide a leg fracture reduction machine which can realize the three-dimensional movement and the three-dimensional rotation of the tibiofibula trunk fracture part, has extremely high flexibility and can meet the requirements of fracture reduction.
The technical scheme adopted by the invention is as follows: the utility model provides a shank fracture resets machine, which comprises a frame, first slip table, fortune horse wheel, the longitudinal slide, the guide pulley, first drive wheel, first synchronous belt, the sideslip board, first motor, the lift post, the backup pad, indulge the guide bracket, the foot rest, the balladeur train, the third hold-in range, the second motor, the third motor, the fixed axle, the U-shaped frame, the second slip table, the sideslip platform, the commentaries on classics dial axle, the electric jar, the second drive wheel, the third drive wheel, the second hold-in range, first follow driving wheel, the telescopic link, the spring, plane footstep bearing, ring type pressure sensor, the pivot, the second is from driving wheel, its characterized in that: the frame is a cuboid truss structure, four horseshoe wheels are arranged at the lower side of the frame, the four horseshoe wheels can enable the leg fracture reduction machine to freely move on the ground and be positioned in a leveling way, a rectangular hollow window is arranged at the center of a longitudinal sliding plate, the longitudinal sliding plate is arranged at the upper side of the frame and forms a sliding pair, a first sliding table arranged at the upper end of the left side of the frame can drive the longitudinal sliding plate to move back and forth, a cross sliding plate is arranged at the upper side of the longitudinal sliding plate and forms a sliding pair, a first motor arranged at the rear end of the cross sliding plate drives the cross sliding plate to move transversely through a first synchronous belt, a lifting column is arranged in a circular hole at the center of the cross sliding plate and forms a rotating pair, a second sliding table is arranged at the front end of the cross sliding plate and can drive a vertical shaft of the lifting column to rotate, a U-shaped frame is fixedly arranged at the top end of the lifting column, the longitudinal guide frame is rotatably connected with the U-shaped frame through two fixed shafts, and an electric pitching cylinder arranged at the upper side of the U-shaped frame can drive the longitudinal guide frame to rotate, the supporting plate can provide support for the legs of a patient and is rotatably installed at the upper end of the U-shaped frame, the sliding frame is installed at the upper side of the longitudinal guide frame and forms a moving pair, the second motor can drive the sliding frame to longitudinally move through a second synchronous belt, the annular pressure sensor and the plane thrust bearing are coaxially installed inside the upper end of the sliding frame and form a rotating pair with the rotating shaft, the telescopic rod and the rotating shaft form a spline transmission structure, a spring is installed between the telescopic rod and the rotating shaft, the foot rest is used for fixing the feet of the patient and is fixedly connected with the telescopic rod, the foot rest is provided with a first binding belt and a second binding belt for fixing the feet of the patient, a third motor fixedly installed at the lower side of the sliding frame can drive the longitudinal shaft of the foot rest to rotate through the synchronous belt transmission structure and the spline transmission structure, the control system is used for controlling the electrified operation of the leg fracture resetting machine and establishing personal files of the patient, a reset scheme is formulated and reset data is recorded.
Preferably, four horsewheels are arranged on the lower side of the frame, and the four horsewheels can realize free movement and leveling positioning of the leg fracture reduction machine on the ground.
Preferably, the guide pulley is synchronous pulley structure and rotates and install in the sideslip board rear side, and the guide pulley can increase the cornerite of first synchronous belt on first drive wheel, makes the transmission more stable difficult jump the tooth.
Preferably, the cross rod arranged on the lifting column and the smooth round hole in the upper end of the transfer shaft are coaxially arranged and can slide relatively, so that the second sliding table drives the transfer shaft to transfer the lifting column to rotate by driving the transverse moving table to move left and right.
Preferably, the middle position of the supporting plate is a downward inward concave arc surface, and a spongy cushion can be laid on the inner side of the inward concave arc surface, so that a patient has good use experience.
As the preferred, indulge the guide bracket both sides and be square bar structure, two square bar structures are parallel to each other and the surface is smooth.
Preferably, the ring-type pressure sensor is located at the front side of the plane thrust bearing, so that the shaft shoulder of the third-order cylinder of the rotating shaft is always pressed against the ring-type pressure sensor through the plane thrust bearing under the action of the elastic force of the spring.
Preferably, the spring is a pressure spring, which has a buffering function and can adjust the force application according to the compression amount, so that the force application in the axial direction of the bone can be easily controlled.
As preferred, ring type pressure sensor can real-time supervision pivot axial pressure to transmit pressure data to control system, be convenient for quantify operation data, also can avoid the axial pressure too big to cause the secondary damage to the patient simultaneously.
Preferably, the lower end of the foot rest is provided with an arc-shaped support plate for supporting the heel of the patient.
The invention has the beneficial effects that: firstly, the supporting plate is an inwards concave cambered surface and can swing along with the pitching of the legs of the patient, so that a better attaching and supporting effect is provided for the legs of the patient; a spring is arranged between the telescopic rod and the rotating shaft, so that when the sliding frame moves backwards to reset the fracture part and apply force longitudinally, the spring has a buffering effect and can adjust the force application size according to the compression amount, and the axial force application to the skeleton is easy to control; the plane thrust bearing can transmit the axial pressure of the rotating shaft and can avoid damage to the ring-type pressure sensor when the rotating shaft rotates, the ring-type pressure sensor can monitor the axial force application value of the skeleton in real time and transmit the pressure data to the control system, thereby being convenient for quantifying the operation data and avoiding secondary damage to the patient caused by overlarge axial pressure; the leg fracture repositor can freely move, level and position on the ground by the aid of the horseback wheels, and is simple in structure and convenient to use; the leg fracture repositor has six spatial degrees of freedom, wherein the first motor can transversely move the lower side fracture, the second motor can longitudinally move the lower side fracture, the lifting column can lift and move the lower side fracture, the second sliding table can enable the lower side fracture to rotate along a vertical shaft, the electric cylinder can enable the lower side fracture to rotate in a pitching manner, and the third motor can enable the lower side fracture to rotate along a vertical shaft, so that the leg fracture repositor has high flexibility and can completely meet the requirement of repositioning the leg fracture.
Drawings
Fig. 1 is a schematic view of the overall structure of the present invention.
Fig. 2 is a partially enlarged schematic view of the lower end position of the lifting column.
Fig. 3 is a partially enlarged view of the position of the longitudinal guide.
Fig. 4 is a longitudinal sectional view schematically showing the position of the carriage.
Reference numerals: the device comprises a machine frame 1, a first guide rail 1.1, a first sliding table 2, a first sliding block 2.1, a horse wheel 3, a longitudinal sliding plate 4, a bent plate 4.1, a second guide rail 4.2, a guide wheel 5, a first driving wheel 6, a first synchronous belt 7, a transverse sliding plate 8, a first motor 9, a lifting column 10, an inner column 10.1, an outer column 10.2, a transverse rod 10.3, a support plate 11, a longitudinal guide frame 12, a second ear 12.1, a foot rest 13, a first binding belt 13.1, a second binding belt 13.2, a sliding frame 14, a third synchronous belt 15, a second motor 16, a third motor 17, a fixed shaft 18, a U-shaped frame 19.1, a first ear 19.1, a second sliding table 20.1, a second sliding block 21, a transverse moving table 22, a shifting shaft 23 electric cylinder, a second driving wheel 24, a third driving wheel 25, a second synchronous belt 26, a telescopic rod 27 first driven wheel, a 28, a spring 29, a plane thrust bearing 30, a pressure sensor 31.1, a ring type pressure sensor 32, a rotating shaft 32.1 and a second driven wheel 33.1.
Detailed Description
The present invention will be further described with reference to specific examples, which are illustrative of the invention and are not to be construed as limiting the invention.
As shown in figure 1, a leg fracture reduction machine comprises a frame 1, a first sliding table 2, a horse wheel 3, a longitudinal sliding plate 4, a guide wheel 5, a first driving wheel 6, a first synchronous belt 7, a transverse sliding plate 8, a first motor 9, a lifting column 10, a supporting plate 11, a longitudinal guide frame 12, a foot rest 13, a sliding frame 14, a third synchronous belt 15, a second motor 16, a third motor 17, a fixed shaft 18, a U-shaped frame 19, a second sliding table 20, a transverse moving table 21, a transfer shaft 22, an electric cylinder 23, a second driving wheel 24, a third driving wheel 25, a second synchronous belt 26, a first driven wheel 27, a telescopic rod 28, a spring 29, a plane thrust bearing 30, a ring type pressure sensor 31, a rotating shaft 32 and a second driven wheel 33, wherein the frame 1 is of a truss structure with a body shape and a rectangular shape, four horse wheels 3 are arranged on the lower side of the frame 1, the four horse wheels 3 can enable the leg reduction machine to freely move and position the leg fracture on the ground, two parallel first guide rails 1.1 are longitudinally arranged on the upper side of the rack 1, and four shielding plates are arranged on the peripheral side faces of the rack 1 and used for beautifying the appearance of the equipment and preventing sundries from entering the rack 1 to block the normal operation of the equipment.
As shown in fig. 1 and 2, the longitudinal sliding plate 4 is of a horizontal plate-shaped structure, a rectangular hollow window is arranged at the center of the longitudinal sliding plate 4, a bent plate 4.1 is arranged on the left side of the longitudinal sliding plate 4, the bent plate 4.1 is of a vertical bent plate-shaped structure, two parallel second guide rails 4.2 are transversely arranged on the upper side of the longitudinal sliding plate 4, the two second guide rails 4.2 are respectively positioned on two sides of the rectangular hollow window, four guide rail sliding blocks are arranged on the lower side of the longitudinal sliding plate 4, and the four guide rail sliding blocks are respectively matched with the two first guide rails 1.1 for installation, so that the longitudinal sliding plate 4 can move forward and backward; first slip table 2 fixed mounting is equipped with first slider 2.1 in the left side upper end of frame 1 on the first slip table 2, and first slider 2.1 can be under the drive effect of slip table motor the back-and-forth movement, and first slip table 2 passes through screw and bent plate 4.1 fixed connection to first slip table 2 can drive the back-and-forth movement of longitudinal sliding plate 4.
The cross sliding plate 8 is a horizontal plate-shaped structure, the center of the cross sliding plate is provided with a round hole, the lower side of the cross sliding plate 8 is provided with four guide rail sliding blocks, these four guide rail slider and the cooperation installation of second guide rail 4.2 and constitute the sliding pair, first motor 9 passes through screw fixed mounting in the 8 upper sides rear ends of cross slide, first drive wheel 6 is synchronous pulley structure and is connected with the coaxial fastening of the output shaft of first motor 9, guide pulley 5 is synchronous pulley structure and rotates and installs in the 8 rear sides of cross slide, 7 left ends of first synchronous belt pass through clamp plate and screw fixed mounting in 4 upside left ends of slide, 7 right-hand members of first synchronous belt pass through screw and clamp plate fixed connection in 4 upside right-hand members of slide after bypassing 6 upsides of first drive wheel and 5 downside of guide pulley in proper order, guide pulley 5 can increase the cornerite of first synchronous belt 7 on first drive wheel 6, thereby the lateral shifting of first motor 9 accessible first synchronous belt 7 drive cross slide 8.
The lifting column 10 comprises an inner column 10.1 and an outer column 10.2, wherein the inner column 10.1 is arranged at the inner center position of the outer column 10.2 to form a moving pair, an electric lifting device is arranged inside the lifting column 10 to realize the lifting and positioning of the inner column 10.1, a round mounting table is arranged at the outer side of the outer column 10.2 close to the upper end and is arranged in a round hole at the center position of the cross sliding plate 8 through a turntable bearing to form a rotating pair, a cross rod 10.3 is transversely arranged at the upper end position of the front side of the outer column 10.2, the cross rod 10.3 is of a horizontal smooth round rod structure, the second sliding table 20 is transversely and fixedly arranged at the front end of the upper side of the cross sliding plate 8, a second sliding block 20.1 is arranged on the second sliding table 20, the second sliding block 20.1 can move left and right under the driving of a motor, the cross sliding table 21 is fixedly arranged at the upper side of the second sliding block 20.1 through a screw, a rotating shaft 22 is of a cylindrical structure, and a smooth round hole is transversely arranged at the upper end of the rotating shaft, the lower end of the transfer shaft 22 is rotatably connected with the upper side of the transverse moving table 21, the rotating shaft is in the vertical direction, the transverse rod 10.3 and the smooth round hole in the upper end of the transfer shaft 22 are coaxially matched and installed and can slide relatively, and therefore the second sliding table 20 can drive the transverse moving table 21 to move left and right to enable the transfer shaft 22 to transfer the outer column 10.2 to rotate, and the rotating action of the lifting column 10 is achieved.
As shown in fig. 1 and 3, the U-shaped frame 19 is fixedly mounted at the top end of the inner column 10.1 by screws, two coaxial circular holes are arranged at the middle positions of two sides of the U-shaped frame 19, the fixed shaft 18 is in a stepped circular shaft structure, wherein the length of the round shaft at the small end is larger than the plate thickness at the two sides of the U-shaped frame 19, the two fixing shafts 18 are respectively and coaxially arranged in the two round holes at the middle positions of the two sides of the U-shaped frame 19 and are fixed by screws, the upper ends of the two sides of the U-shaped frame 19 are provided with two coaxial round holes, the middle position of the supporting plate 11 is a downward concave cambered surface, the inner side of the concave cambered surface can be laid with a spongy cushion, the two ends of the supporting plate 11 are provided with two coaxial round shafts which are respectively and coaxially and rotatably connected with the two round holes at the upper end of the U-shaped frame 19, thereby the supporting plate 11 can provide stable and comfortable support for the legs of the patient, and the front end inside the U-shaped frame 19 is provided with a first ear 19.1; the two sides of the longitudinal guide frame 12 are both square rod structures, the two square rod structures are parallel to each other and have smooth surfaces, the inner side of the rear end of the longitudinal guide frame 12 is provided with a second lug 12.1, and the position of the longitudinal guide frame 12 close to the rear end is transversely provided with two round holes which are respectively and coaxially and rotatably connected with the two fixed shafts 18; an encoder and a brake are integrated in the electric cylinder 23, accurate extension and stable locking positioning can be carried out, the lower end of the electric cylinder 23 is rotatably connected with the first lug 19.1, and the upper end of the electric cylinder 23 is rotatably connected with the second lug 12.1, so that the electric cylinder 23 can realize pitching and positioning of the longitudinal guide frame 12 through extension and retraction; the lower end of the sliding frame 14 is longitudinally provided with two square holes, and the size of the two square holes is the same as the size of the cross section of the square rod structures on the two sides of the longitudinal guide frame 12, so that the two square holes on the lower end of the sliding frame 14 can be matched with the square rod structures on the two sides of the longitudinal guide frame 12 to be installed and form a moving pair; the first driven wheel 27 is in a synchronous pulley structure and is transversely rotatably mounted inside the position, close to the rear end, of the longitudinal guide frame 12, the second motor 16 is internally integrated with an encoder and a brake, accurate angle rotation and stable positioning and locking can be carried out, the second motor 16 is fixedly mounted on the inner side of the front end of the longitudinal guide frame 12 through screws, and the second driving wheel 24 is in a synchronous pulley structure and is coaxially and fixedly connected with an output shaft of the second motor 16; the front end of the second timing belt 26 passes around the second driving wheel 24 and is fastened to the rear side of the lower end of the carriage 14, and the rear end of the second timing belt 26 passes around the first driven wheel 27 and is fastened to the front side of the lower end of the carriage 14, so that the second motor 16 can drive the carriage 14 to move back and forth and position.
As shown in fig. 1 and 4, a cylindrical cavity with a smooth inner surface is longitudinally arranged inside the upper end of the carriage 14, the front end and the rear end of the cylindrical cavity are communicated with the outside through two coaxial smooth circular holes, the rotating shaft 32 is a three-step cylindrical structure with the diameter increasing from front to back, the excircle diameter of the third-step cylinder at the rear end of the sliding frame is equal to the diameter of a cylinder cavity in the upper end of the sliding frame 14, an internal spline 32.1 is arranged at the center of the rear end of the rotating shaft 32, the excircle diameter of the second-step cylinder at the middle position of the rotating shaft 32 is equal to the diameter of a smooth round hole at the front end of the cylinder cavity, the third-step cylinder at the rear end of the rotating shaft 32 is arranged in the cylinder cavity and forms a revolute pair, the annular pressure sensor 31 and the plane thrust bearing 30 are both coaxially arranged with the rotating shaft 32 and are positioned at the front end in the cylindrical cavity, and the annular pressure sensor 31 is positioned at the front side of the plane thrust bearing 30; 28 front end outside of telescopic link be equipped with the external splines, front end central point puts and is equipped with the blind hole, 28 front ends of telescopic link are installed inside pivot 32 rear end, and the external splines of 28 front ends of telescopic link constitute spline transmission structure with the internal splines 32.1 of pivot 32 rear end, the cylindrical excircle diameter of 28 rear ends of telescopic link equals with the smooth round hole diameter of cylinder cavity rear end, spring 29 is installed in the blind hole of 28 front ends of telescopic link, the cylindrical shaft shoulder of pivot 32 third order passes through plane footstep bearing 30 and compresses tightly pressure sensor 31 all the time in the ring type under the spring 29 spring action, but ring type pressure sensor 31 real-time supervision pivot 32's axial pressure, and transmit pressure data to control system.
As shown in fig. 1, the foot rest 13 is used for fixing the foot of a patient, the foot rest 13 is connected with the rear end of the telescopic rod 28 in a fastening manner to form a whole body, the foot rest 13 is provided with a first bandage 13.1 near the upper end, the first bandage 13.1 can be adjusted in tightness and used for fixing the sole of the patient, the lower end of the foot rest 13 is provided with an arc-shaped support plate for supporting the heel of the patient, the second bandage 13.2 is arranged on the upper side of the arc-shaped support plate, the second bandage 13.2 can be adjusted in tightness and used for fixing the heel of the patient, and therefore the foot of the patient can be stably fixed by the aid of the two bandages acting simultaneously.
The working principle of the invention is as follows: when the fracture part is reset, firstly, a patient is placed on an operating bed and effectively fixed, the fracture part is subjected to image acquisition by adopting a medical X-ray machine, the fracture position is marked on the skin by using a marking pen, then, a leg fracture resetting machine is moved to a proper position below the leg of the affected part, a first sliding table 2 and a second sliding table 20 are controlled to move properly, a supporting plate 11 is positioned under the lower side fracture part, a lifting column 10 is lifted, the supporting plate 11 supports the leg of the lower side fracture part, a foot rest 13 is placed on a foot rest 13 after a second motor 16 is started and is adjusted to a proper position, and the foot of the patient is fixed by a first bandage 13.1 and a second bandage 13.2, so that the fracture position can be reset according to specific conditions; in the process, the first motor 9 can enable the lower side fracture to move transversely, the second motor 16 can enable the lower side fracture to move longitudinally, the lifting column 10 can enable the lower side fracture to move in a lifting mode, the second sliding table 20 can enable the lower side fracture to achieve vertical axis rotation, the electric cylinder 23 can enable the lower side fracture to achieve pitching rotation, the third motor 17 can enable the lower side fracture to achieve vertical axis rotation, and the requirement for resetting of the leg fracture end can be met completely.
Claims (10)
1. The utility model provides a shank fracture resets machine, which comprises a frame, first slip table, fortune horse wheel, the longitudinal slide, the guide pulley, first drive wheel, first synchronous belt, the sideslip board, first motor, the lift post, the backup pad, indulge the guide bracket, the foot rest, the balladeur train, the third hold-in range, the second motor, the third motor, the fixed axle, the U-shaped frame, the second slip table, the sideslip platform, the commentaries on classics dial axle, the electric jar, the second drive wheel, the third drive wheel, the second hold-in range, first follow driving wheel, the telescopic link, the spring, plane footstep bearing, ring type pressure sensor, the pivot, the second is from driving wheel, its characterized in that: the frame is a rectangular truss structure, four horseshoe wheels are arranged on the lower side of the frame, the four horseshoe wheels can enable the leg fracture repositor to freely move and be leveled and positioned on the ground, a rectangular hollow window is arranged in the center of a longitudinal sliding plate, the longitudinal sliding plate is arranged on the upper side of the frame and forms a moving pair, a first sliding table arranged on the upper end of the left side of the frame can drive the longitudinal sliding plate to move back and forth, a transverse sliding plate is arranged on the upper side of the longitudinal sliding plate and forms a moving pair, a first motor arranged on the rear end of the transverse sliding plate drives the transverse sliding plate to move transversely through a first synchronous belt, a lifting column is arranged in a circular hole in the center of the transverse sliding plate and forms a rotating pair, a second sliding table is arranged on the front end of the transverse sliding plate and can drive a vertical shaft of the lifting column to rotate, a U-shaped frame is fixedly arranged on the top end of the lifting column, the longitudinal guide frame is rotatably connected with the U-shaped frame through two fixed shafts, and an electric cylinder arranged on the upper side of the U-shaped frame can drive the longitudinal guide frame to rotate in a pitching mode, the supporting plate can provide support for the legs of a patient and is rotatably arranged at the upper end of the U-shaped frame, the sliding frame is arranged at the upper side of the longitudinal guide frame and forms a sliding pair, the second motor can drive the sliding frame to longitudinally move through a second synchronous belt, the annular pressure sensor and the plane thrust bearing are coaxially arranged in the upper end of the sliding frame and form a rotating pair with the rotating shaft, the telescopic rod and the rotating shaft form a spline transmission structure, a spring is arranged between the telescopic rod and the rotating shaft, the foot rest is used for fixing the feet of the patient and is fixedly connected with the telescopic rod, the foot rest is provided with a first bandage and a second bandage for fixing the feet of the patient, a third motor fixedly arranged at the lower side of the sliding frame can drive the longitudinal shaft of the foot rest to rotate through the synchronous belt transmission structure and the spline transmission structure, the control system is used for controlling the electrified operation of the leg fracture resetting machine and establishing personal files of the patient, and establishing a reset scheme and recording reset data.
2. The leg fracture reduction machine according to claim 1, wherein: the four horseshoe wheels are arranged on the lower side of the frame, and the leg fracture reduction machine can freely move on the ground and be leveled and positioned.
3. The leg fracture reduction machine according to claim 1, wherein: the guide pulley be synchronous pulley structure and rotate and install in the sideslip board rear side, the guide pulley can increase the cornerite of first synchronous belt on first drive wheel, makes the transmission more stable difficult jump the tooth.
4. The leg fracture reduction machine according to claim 1, wherein: the horizontal pole that is equipped with on the lift post and the smooth round hole coaxial arrangement and the relative slip of transfer epaxial end to the second slip table makes the transfer axle stir the lift post rotatory through removing about the drive sideslip platform.
5. The leg fracture reduction machine according to claim 1, wherein: the middle position of the supporting plate is a downward inward concave cambered surface, and a spongy cushion can be laid on the inner side of the inward concave cambered surface, so that a patient has good use experience.
6. The leg fracture reduction machine according to claim 1, wherein: the two sides of the longitudinal guide frame are both square rod structures, and the two square rod structures are parallel to each other and have smooth surfaces.
7. The leg fracture reduction machine according to claim 1, wherein: the annular pressure sensor is positioned on the front side of the plane thrust bearing, so that the shaft shoulder of the third-order cylinder of the rotating shaft always compresses the annular pressure sensor through the plane thrust bearing under the action of the elastic force of the spring.
8. The leg fracture reduction machine according to claim 1, wherein: the spring is a pressure spring, has a buffering effect and can adjust the force application size according to the compression amount, so that the axial force application size of the skeleton is easy to control.
9. The leg fracture reduction machine according to claim 1, wherein: the annular pressure sensor can monitor the axial pressure of the rotating shaft in real time, transmit pressure data to the control system, facilitate quantification of operation data, and avoid secondary damage to a patient due to overlarge axial pressure.
10. The leg fracture reduction machine according to claim 1, wherein: the lower end of the foot rest is provided with an arc-shaped supporting plate for supporting the heels of the patients.
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| CN202210211353.0A CN114569228B (en) | 2022-03-04 | 2022-03-04 | Leg fracture reposition machine |
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| CN202210211353.0A CN114569228B (en) | 2022-03-04 | 2022-03-04 | Leg fracture reposition machine |
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| CN114569228A true CN114569228A (en) | 2022-06-03 |
| CN114569228B CN114569228B (en) | 2024-01-19 |
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