CN111358542B - Orthopedics draw gear with adjustable and auto-lock function of contained angle - Google Patents
Orthopedics draw gear with adjustable and auto-lock function of contained angle Download PDFInfo
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- CN111358542B CN111358542B CN202010403760.2A CN202010403760A CN111358542B CN 111358542 B CN111358542 B CN 111358542B CN 202010403760 A CN202010403760 A CN 202010403760A CN 111358542 B CN111358542 B CN 111358542B
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- 230000000399 orthopedic effect Effects 0.000 title claims abstract description 28
- 238000004804 winding Methods 0.000 claims abstract description 68
- 210000003423 ankle Anatomy 0.000 abstract description 11
- 238000010586 diagram Methods 0.000 description 7
- 210000003141 lower extremity Anatomy 0.000 description 7
- 238000000034 method Methods 0.000 description 6
- 230000007306 turnover Effects 0.000 description 5
- 210000000988 bone and bone Anatomy 0.000 description 4
- 230000000694 effects Effects 0.000 description 4
- 230000008569 process Effects 0.000 description 4
- 208000027418 Wounds and injury Diseases 0.000 description 3
- 206010061599 Lower limb fracture Diseases 0.000 description 2
- 230000006378 damage Effects 0.000 description 2
- 208000014674 injury Diseases 0.000 description 2
- 206010017076 Fracture Diseases 0.000 description 1
- 206010062575 Muscle contracture Diseases 0.000 description 1
- 206010049816 Muscle tightness Diseases 0.000 description 1
- 229910000831 Steel Inorganic materials 0.000 description 1
- 230000009471 action Effects 0.000 description 1
- 230000006978 adaptation Effects 0.000 description 1
- 230000009286 beneficial effect Effects 0.000 description 1
- 230000008602 contraction Effects 0.000 description 1
- 208000006111 contracture Diseases 0.000 description 1
- 230000003247 decreasing effect Effects 0.000 description 1
- 201000010099 disease Diseases 0.000 description 1
- 208000037265 diseases, disorders, signs and symptoms Diseases 0.000 description 1
- 238000006073 displacement reaction Methods 0.000 description 1
- 238000005516 engineering process Methods 0.000 description 1
- 210000002683 foot Anatomy 0.000 description 1
- 230000005484 gravity Effects 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 230000009467 reduction Effects 0.000 description 1
- 210000004872 soft tissue Anatomy 0.000 description 1
- 230000003068 static effect Effects 0.000 description 1
- 239000010959 steel Substances 0.000 description 1
- 210000001519 tissue Anatomy 0.000 description 1
Classifications
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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
- A61B17/60—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 for external osteosynthesis, e.g. distractors, contractors
- A61B17/66—Alignment, compression or distraction mechanisms
-
- 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
- A61B17/60—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 for external osteosynthesis, e.g. distractors, contractors
- A61B17/64—Devices extending alongside the bones to be positioned
- A61B17/6408—Devices not permitting mobility, e.g. fixed to bed, with or without means for traction or reduction
-
- 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
- A61B17/60—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 for external osteosynthesis, e.g. distractors, contractors
- A61B17/64—Devices extending alongside the bones to be positioned
- A61B17/6425—Devices extending alongside the bones to be positioned specially adapted to be fitted across a bone joint
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- Health & Medical Sciences (AREA)
- Orthopedic Medicine & Surgery (AREA)
- Life Sciences & Earth Sciences (AREA)
- Surgery (AREA)
- Biomedical Technology (AREA)
- Engineering & Computer Science (AREA)
- Nuclear Medicine, Radiotherapy & Molecular Imaging (AREA)
- Heart & Thoracic Surgery (AREA)
- Medical Informatics (AREA)
- Molecular Biology (AREA)
- Animal Behavior & Ethology (AREA)
- General Health & Medical Sciences (AREA)
- Public Health (AREA)
- Veterinary Medicine (AREA)
- Orthopedics, Nursing, And Contraception (AREA)
Abstract
The invention relates to the field of medical equipment, in particular to an orthopedic traction device with an included angle adjustable and self-locking function, which comprises: the device comprises a stand column barrel, a sleeve, a pulley overturning structure, a rotating shaft, an elastic torsion structure, a rope winding wheel, a traction pull rope and a traction bow. When in use, one end of the traction rope is tied on the rope winding wheel, the other end is connected with the traction bow, and the traction bow is fixed and tied at the ankle of a patient. And the hand wheel is rotated, the hand wheel drives the second worm to rotate, the second worm drives the second worm wheel to rotate, and the second worm wheel drives the rotating shaft to rotate through the second sleeve and the torsion spring, so that the rope winding wheel rotates to carry out tightness adjustment on the traction rope. Through rotating the knob, the knob drives first worm to rotate for rotating the knob and can rotating the adjustment with pulley flip structure around first worm wheel, can adjust the height of pulley after rotating the adjustment, can make and pull the stay cord control traction bow and locate to adjust to suitable traction angle at patient's ankle, easy operation, convenient and practical.
Description
Technical Field
The invention relates to the field of medical instruments, in particular to an orthopedic traction device with an included angle adjustable self-locking function.
Background
Traction is a common treatment method for orthopaedics, which is a treatment method for relieving muscle tension and strong contraction, restoring fracture and dislocation, preventing and correcting soft tissue contracture, and loosening and post-operation braking of tissues before operation of certain diseases by using a traction device and using the weight of overhang as traction force and the weight of body as counter-traction force. Bone traction is an important type of traction technology, also called direct traction, which uses steel needles or traction forceps to penetrate bone, so that traction force directly passes through the bone to reach the damaged part and plays roles of reduction, fixation and rest.
When medical staff in a hospital pulls bones of patients with lower limb fracture, a fixed traction frame is sleeved on a patient frame at the tail part of a sickbed, a fixed pulley sleeve fixed through a top pin is arranged on the traction frame, a traction stay cord bypasses the fixed pulley, a weight is fixed at the tail end of the traction stay cord, and the weight naturally hangs by gravity and provides traction force for the patients through the traction stay cord. But the following drawbacks are currently found in clinical use:
Firstly, the fixed pulley is sleeved on a round tube type cross rod with a smooth surface through a knock pin to realize unstable fixation on the overturning angle, the contact area of the knock pin is too small when the surface of the round tube type cross rod is propped, the fixed pulley is very easy to loose when the fixed pulley is sleeved on the cross rod for positioning in the overturning angle, and if the fixed pulley is suddenly loosened, the traction part of a patient is easily pulled to form dislocation, so that the fixed pulley has great hidden danger to the safety of the patient.
Secondly, the traction force can easily swing left and right in the hanging process through the naturally hung weight, the traction force can be neglected and unstable in the swinging process of the weight, the traction effect is affected, the weight can be easily touched by a person walking back and forth when being hung at the tail of the bed, if the collision force is large, the weight can fall off or a traction pull rope falls off from a fixed pulley, the traction failure of a patient is caused, even secondary injury is caused, and meanwhile, the weight can form a smash injury to the foot surfaces of other persons if falling off.
Thirdly, the fixed pulley sleeve needs to be loosened firstly when the fixed pulley sleeve is required to be overturned to be fixed at other angles on the cross rod, then the fixed pulley sleeve is gripped to be overturned to a proper angle, and finally the fixed top pin is screwed, so that the whole process is very complicated, a great deal of time is required to be consumed, and medical staff is required to grasp the fixed pulley sleeve when the fixed pulley sleeve is loosened, but due to the large weight of the weight, the palm of the medical staff is required to bear the pulling force of the weight when the fixed pulley sleeve is suddenly loosened and fixed, the phenomenon of slipping out of hands is easy to occur, and great potential safety hazards are also caused to patients.
Fourth, the traction force is adjusted by increasing or decreasing the weight number of the weight, so that the traction force can be adjusted stepwise, and the traction force can not be adjusted steplessly according to the needs of the patient.
Disclosure of Invention
In order to solve the problems, the invention aims to provide the orthopedic traction device with the adjustable included angle and the self-locking function, which can be used for carrying out stepless traction force adjustment.
The invention aims at realizing the following technical scheme:
The invention provides an orthopedics traction device with adjustable included angle and self-locking function, which comprises: the device comprises a stand column barrel, a sleeve, a pulley overturning structure, a rotating shaft, an elastic torsion structure, a rope winding wheel, a traction pull rope and a traction bow; the number of the upright column barrels is two, and the heights of the two upright column barrels are adjustable and are arranged on two upright columns of the sickbed; the sleeve is arranged on the two upright cylinders, and the rotating shaft is rotatably arranged on the two upright cylinders and positioned at the lower part of the sleeve; the number of the pulley overturning structures is multiple, and the pulley overturning structures are sleeved on the sleeve;
the pulley overturning structure comprises: the device comprises a first sleeve, a first shell, a deep groove ball bearing, a first worm wheel, a thrust bearing, a knob, a pulley yoke and a pulley; the first sleeve is sleeved on the sleeve, the first worm and the first worm wheel are meshed and then arranged in the first shell, the first shell is sleeved on the first sleeve through a deep groove ball bearing, the first worm wheel is fixedly sleeved on the first sleeve, a thrust bearing is sleeved on a worm shaft of the first worm between the end face of the first worm and the first shell and is arranged on the inner wall of the first shell, one end of the first worm extends out of the first shell and is connected with the knob, the lower part of the first shell is connected with a pulley frame, and a pulley is arranged on the pulley frame;
The elastic torsion structure includes: the second sleeve, the second shell, the second worm wheel, the thrust bearing, the hand wheel and the torsion spring; the second sleeve is sleeved on the rotating shaft, the second worm and the second worm wheel are meshed and then arranged in the second shell, the second shell is fixedly arranged on the upright cylinder, the second worm wheel is fixedly sleeved on the second sleeve, a thrust bearing is sleeved on a worm shaft of the second worm between the end face of the second worm and the second shell, the thrust bearing is arranged on the inner wall of the second shell, one end of the second worm extends out of the second shell and is connected with the hand wheel, the second sleeve extends out of the second shell and is connected with one end of the torsion spring, and the torsion spring is sleeved on the rotating shaft and the other end of the torsion spring is connected with the rotating shaft;
The number of the rope winding wheels is multiple, the rope winding wheels are sleeved on the rotating shaft, one end of the traction stay rope is wound on the rope winding wheels, and the other end of the traction stay rope is connected with the traction bow by winding the pulley.
Further, rope winding wheel baffle rings are arranged at two ends of the rope winding wheel, a rope clamping groove is formed in one rope winding wheel baffle ring, and one end of the traction stay rope is wound on the rope winding wheel and then fixed in the rope clamping groove.
Further, the rope winding wheel is sleeved with the sliding key of the rotating shaft, and the rope winding wheel is provided with a jacking pin for jacking the sliding key.
Further, the device also comprises a shaft lever, the shaft lever is arranged in the sleeve in a telescopic way, the sleeve is sleeved with the shaft lever sliding key, and the sleeve is provided with a jacking pin for jacking the sliding key; the shaft lever is sleeved with a plurality of pulley overturning structures.
Further, a first sleeve in the pulley overturning structure is sleeved with the shaft lever sliding key, and a jacking pin used for jacking the sliding key is arranged on the first sleeve.
Further, the device also comprises two first fixing frames, wherein the first fixing frames are vertical sleeves which are connected with horizontal sleeves through rib plates, the vertical sleeves are sleeved on the upright column cylinder in a height-adjustable mode, and sleeves are sleeved in the two horizontal sleeves.
Further, the horizontal sleeve is sleeved with the sleeve sliding key, and the horizontal sleeve is provided with a jacking pin for jacking the sliding key.
Further, the first sleeve is sleeved with the sleeve sliding key, and the first sleeve is provided with a jacking pin for jacking the sliding key; a sleeve baffle ring is arranged on the cylinder wall at one end of the first sleeve, a check ring groove is formed in the cylinder wall at the other end of the first sleeve, and a check ring is arranged in the check ring groove.
Further, a driving baffle ring is arranged on the rotating shaft, and the other end of the torsion spring is connected with the driving baffle ring.
Further, the device also comprises two second fixing frames, and a rotating shaft is sleeved in the two second fixing frames.
The orthopedic traction device with the adjustable included angle and the self-locking function is used by firstly adjusting the height of the device on the upright post. And then the positions of the pulley overturning structure and the rope winding wheel are axially adjusted according to the actual condition of the traction position at the ankle of the lower limb of the patient. One end of the traction rope is tied with a knot and is clamped on the rope winding wheel, then the traction rope is wound on the rope winding wheel for a plurality of circles and then is pulled upwards to the rear side of the pulley, the traction rope is extended forwards by bypassing the pulley to be connected with the traction bow, and the traction bow is fixed at the ankle of a patient. And the hand wheel is rotated, the hand wheel drives the second worm to rotate, the second worm drives the second worm wheel to rotate, and the second worm wheel drives the rotating shaft to rotate through the second sleeve and the torsion spring, so that the rope winding wheel rotates to carry out tightness adjustment on the traction rope. Through rotating the knob, the knob drives the first worm to rotate, again because the first worm wheel can not rotate for rotating the knob and can rotating the adjustment with pulley flip structure around first worm wheel, can adjust the height of pulley after rotating the adjustment, can make the stay cord control traction bow of traction to suitable traction angle in patient ankle department, easy operation, convenient and practical.
Drawings
The accompanying drawings, which are included to provide a further understanding of the application and are incorporated in and constitute a part of this specification, illustrate embodiments of the application and together with the description serve to explain the application and do not constitute a limitation on the application. In the drawings:
FIG. 1 is a view of an angular use of the orthopedic traction device of the present invention with adjustable included angle and self-locking;
FIG. 2 is a view of another angle of use of the orthopedic traction device of the present invention with adjustable included angle and self-locking function;
FIG. 3 is a block diagram of an angle of the orthopedic traction device with adjustable included angle and self-locking function of the present invention;
FIG. 4 is a block diagram of another angle of the orthopedic traction device with adjustable included angle and self-locking function of the present invention;
FIG. 5 is a block diagram of a first mount in the orthopedic traction device with adjustable included angle and self-locking function of the present invention;
FIG. 6 is a block diagram of an angle of a pulley turnover structure in an orthopedic traction device with adjustable included angle and self-locking function according to the present invention;
FIG. 7 is a block diagram of another angle of the pulley turnover structure in the orthopedic traction device with adjustable included angle and self-locking function of the present invention;
FIG. 8 is a cutaway view of a first housing of the orthopedic traction device of the present invention having adjustable included angles and self-locking functions;
FIG. 9 is a block diagram of an elastic torsion structure in an orthopedic traction device with adjustable included angle and self-locking function of the present invention;
FIG. 10 is a cut-away view of an elastic torsion structure in an orthopedic traction device with adjustable included angle and self-locking function of the present invention;
Fig. 11 is a block diagram of a sheave of the orthopedic traction device with adjustable included angle and self-locking function of the present invention;
Wherein the reference numerals are as follows: 1. a column casing; 2. a sleeve; 3. a rotating shaft; 4. a rope winding wheel; 5. pulling a pull rope; 6. traction bow; 7. a first sleeve; 8. a first housing; 9. a first worm; 10. a first worm wheel; 11. a thrust bearing; 12. a knob; 13. a pulley frame; 14. a pulley; 15. a second sleeve; 16. a second housing; 17. a second worm; 18. a second worm wheel; 19. a hand wheel; 20. a torsion spring; 21. A rope winding wheel baffle ring; 22. rope clamping grooves; 23. a shaft lever; 24. a first fixing frame; 25. a retainer ring; 26. driving the baffle ring; 27. the second fixing frame; 28. a cross bar.
Detailed Description
In order that those skilled in the art will better understand the present invention, a technical solution in the embodiments of the present invention will be clearly and completely described below with reference to the accompanying drawings in which it is apparent that the described embodiments are only some embodiments of the present invention, not all embodiments. All other embodiments, which can be made by those skilled in the art based on the embodiments of the present invention without making any inventive effort, shall fall within the scope of the present invention.
As shown in fig. 1 to 11, an orthopedic traction device with adjustable included angle and self-locking function according to an embodiment of the present invention includes: the device comprises a column casing 1, a sleeve 2, a pulley overturning structure, a rotating shaft 3, an elastic torsion structure, a rope reel 4, a traction stay 5 and a traction bow 6; the number of the upright column barrels 1 is two, and the two upright column barrels 1 are arranged on two upright columns of the sickbed in a height-adjustable manner; the sleeve 2 is arranged on the two upright cylinders 1, and the rotating shaft 3 is rotatably arranged on the two upright cylinders 1 and is positioned at the lower part of the sleeve 2; the number of the pulley overturning structures is multiple, and the pulley overturning structures are sleeved on the sleeve 2;
The pulley overturning structure comprises: the device comprises a first sleeve 7, a first shell 8, a deep groove ball bearing, a first worm 9, a first worm wheel 10, a thrust bearing 11, a knob 12, a pulley frame 13 and a pulley 14; the first sleeve 7 is sleeved on the sleeve 2, the first worm 9 and the first worm wheel 10 are meshed and then are arranged in the first shell 8, the first shell 8 is sleeved on the first sleeve 7 through a deep groove ball bearing, the first worm wheel 10 is fixedly sleeved on the first sleeve 7, a thrust bearing 11 is sleeved on a worm shaft of the first worm 9 between the end face of the first worm 9 and the first shell 8, the thrust bearing 11 is arranged on the inner wall of the first shell 8, one end of the first worm 9 extends out of the first shell 8 and is connected with a knob 12, the lower part of the first shell 8 is connected with a pulley frame 13, and a pulley 14 is arranged on the pulley frame 13;
The elastic torsion structure includes: the second sleeve 15, the second shell 16, the second worm 17, the second worm wheel 18, the thrust bearing 11, the hand wheel 19 and the torsion spring 20; the second sleeve 15 is sleeved on the rotating shaft 3, the second worm 17 and the second worm wheel 18 are meshed and then are arranged in the second shell 16, the second shell 16 is fixedly arranged on the upright post barrel 1, the second worm wheel 18 is fixedly sleeved on the second sleeve 15, a thrust bearing 11 is sleeved on a worm shaft of the second worm 17 between the end face of the second worm 17 and the second shell 16, the thrust bearing 11 is arranged on the inner wall of the second shell 16, one end of the second worm 17 extends out of the second shell 16 and is connected with the hand wheel 19, the second sleeve 15 extends out of the second shell 16 and is connected with one end of the torsion spring 20, the torsion spring 20 is sleeved on the rotating shaft 3, and the other end of the torsion spring 20 is connected with the rotating shaft 3;
the number of the rope winding wheels 4 is multiple, the rope winding wheels 4 are sleeved on the rotating shaft 3, one end of the traction pull rope 5 is wound on the rope winding wheels 4, and the other end of the traction pull rope is connected with the traction bow 6 by bypassing the pulley 14.
The orthopedic traction device with the adjustable included angle and the self-locking function is used by firstly adjusting the height of the device on the upright post. And then the positions of the pulley overturning structure and the rope winding wheel 4 are axially adjusted according to the actual situation of the traction position at the ankle of the lower limb of the patient. One end of the traction rope 5 is tied with a knot and is clamped on the rope winding wheel 4, then the traction rope 5 is wound on the rope winding wheel 4 for a plurality of circles and then is pulled upwards to the rear side of the pulley 14, and extends forwards around the pulley 14 to be connected with the traction bow 6, and the traction bow 6 is fixed and tied at the ankle of a patient. The hand wheel 19 is rotated, the hand wheel 19 drives the second worm 17 to rotate, the second worm 17 drives the second worm wheel 18 to rotate, and the second worm wheel 18 drives the rotating shaft 3 to rotate through the second sleeve 15 and the torsion spring 20, so that the rope reeling wheel 4 rotates to carry out tightness adjustment on the traction stay rope 5. Through rotating knob 12, knob 12 drives first worm 9 and rotates, again because first worm wheel 10 can't rotate for rotate knob 12 can rotate the adjustment with pulley flip structure around first worm wheel 10, can adjust the height of pulley 14 after rotating the adjustment, can make the stay cord 5 control traction bow 6 of traction to suitable traction angle in patient's ankle department, easy operation, convenient and practical.
As a preferable technical scheme, two ends of the rope winding wheel 4 are provided with rope winding wheel baffle rings 21, one rope winding wheel baffle ring 21 is provided with a rope clamping groove 22, and one end of the traction pull rope 5 is wound on the rope winding wheel 4 and then fixed in the rope clamping groove 22.
The rotating shaft 3 at the rear section of the driving baffle ring 26 is axially provided with a rotating shaft guide groove, the rotating shaft 3 at the rotating shaft guide groove section is sleeved with two groups of rope winding wheels 4 by sliding keys, the two groups of rope winding wheels 4 correspond to the pulley overturning structure above in the axial direction, the positions, close to the two sides, of the rope winding wheels 4 are provided with protruding rope winding wheel baffle rings 21, and the rope winding wheel baffle rings 21 are used for limiting and preventing slipping of a traction pull rope 5 in the wheel groove of the rope winding wheels 4. A rope clamping groove 22 with a notch is arranged on the rope winding wheel baffle ring 21 at one side, and the rope clamping groove 22 is in a curve arc shape, and a certain length is arranged on the rope winding wheel baffle ring 21, so that the end head of the traction pull rope 5 can be clamped in the rope clamping groove 22.
As the preferable technical scheme, the rope winding wheel 4 is sleeved with the sliding key of the rotating shaft 3, and the rope winding wheel 4 is provided with a jacking pin for jacking the sliding key.
The rope winding wheel protruding end is axially designed on the outer side of the rope winding wheel baffle ring 21 on one side of the rope winding wheel 4, a sixth ejector pin which can be in threaded fit connection is arranged on the rope winding wheel protruding end, a rope winding wheel guide block which slides in a rotating shaft guide groove is arranged on the inner wall of the rope winding wheel 4, the sixth ejector pin faces inwards to the position of the rotating shaft guide groove of the rotating shaft 3, the sixth ejector pin can be clamped in the rotating shaft guide groove in a screwed mode, and the rope winding wheel 4 and the rotating shaft 3 can be kept relatively fixed. The remainder of the traction rope 5 is wound around the pulley 14 of the pulley turnover structure corresponding to the upper part of the traction rope after being wound on the rope winding wheel 4, and a traction bow 6 is fixedly tied at the end head of the rear end of the traction rope 5, and the traction bow 6 is of a structure in the prior art and is not specifically described herein.
As a preferable technical scheme, the device further comprises a shaft lever 23, wherein the shaft lever 23 is telescopically arranged in the sleeve 2, the sleeve 2 is sleeved with the sliding key of the shaft lever 23, and the sleeve 2 is provided with a jacking pin for jacking the sliding key; the shaft lever 23 is sleeved with a plurality of pulley overturning structures.
The sleeve 2 is provided with a through hole with a sleeve guide block along the axial direction, the inside of the through hole is sleeved with a shaft lever 23, the shaft lever 23 is provided with a shaft lever guide groove along the axial direction, which can be matched with the sleeve guide block in the through hole, and the sleeve 2 and the shaft lever 23 can not rotate relatively due to the matching and sleeve of the sliding key. Meanwhile, a fourth ejector pin is screwed on the pipe wall of the sleeve pipe 2 close to the port, the fourth ejector pin is integrally L-shaped, and the L-shaped fourth ejector pin is bent and screwed into a shaft lever guide groove position which can be used for locking the shaft lever 23, so that the shaft lever 23 and the sleeve pipe 2 are relatively and stably fixed.
As a preferable technical scheme, a first sleeve 7 in the pulley overturning structure is sleeved with a sliding key of the shaft lever 23, and a jacking pin for jacking the sliding key is arranged on the first sleeve 7.
The pulley overturning structures are also fixed on the shaft rods 23 which are telescopic inside the two sides of the sleeve 2 and are used for traction of other parts of a patient.
As the preferable technical scheme, the device also comprises two first fixing frames 24, wherein the first fixing frames 24 are vertical sleeves, the vertical sleeves are connected with horizontal sleeves through rib plates, the vertical sleeves are sleeved on the upright column barrel 1 in a height-adjustable mode, and the sleeves 2 are sleeved in the two horizontal sleeves.
The left and right upright columns 1 are respectively sleeved with a first fixing frame 24, the first fixing frames 24 on the two upright columns 1 are always at the same height, fixing frame clamping holes are formed in the first fixing frames 24, and the upright column 1 clamping holes which are uniformly distributed on the upright columns 1 along the axial direction are fixed and adjusted in height through second ejector pins. The first fixing frame 24 is a horizontal sleeve with a vertical sleeve fixedly connected with a horizontal state through a rib plate. The sleeve 2 in the same horizontal state is sleeved inside the horizontal sleeves of the two first fixing frames 24.
As the preferable technical scheme, the horizontal sleeve is sleeved with the sliding key of the sleeve 2, and the horizontal sleeve is provided with a jacking pin for jacking the sliding key.
The sleeve guide groove is axially formed in the wall of the sleeve 2, and the horizontal sleeve of the first fixing frame 24 is provided with a horizontal sleeve guide block corresponding to the sleeve guide groove of the sleeve 2, so that the horizontal sleeve of the first fixing frame 24 and the sleeve 2 form a sliding key sleeve joint structure and cannot rotate relatively. The third ejector pin screwed is arranged at the position of the horizontal sleeve of the first fixing frame 24 corresponding to the sleeve guide groove of the sleeve 2, the third ejector pin is screwed into the horizontal sleeve to clamp and fix the sleeve guide groove of the sleeve 2, the third ejector pin is propped into the sleeve guide groove instead of the wall of the sleeve 2 because the wall of the sleeve 2 is in an arc curved surface shape, the third ejector pin is not easy to clamp, and the sleeve 2 and the first fixing frame 24 can be kept relatively fixed more stably by propping the third ejector pin into the sleeve guide groove.
As the preferable technical scheme, a first sleeve 7 is sleeved with a sliding key of a sleeve 2, and a jacking pin for jacking the sliding key is arranged on the first sleeve 7; a sleeve baffle ring is arranged on the cylinder wall at one end of the first sleeve 7, a check ring groove is arranged on the cylinder wall at the other end, and a check ring 25 is arranged in the check ring groove.
Two groups of pulley overturning structures are sleeved on the sleeve 2 at the middle section of the two first fixing frames 24, a first sleeve 7 on the pulley overturning structures is sleeved with the sleeve 2, and the inner wall of the first sleeve 7 is also provided with a first sleeve 7 guide block in a protruding mode, corresponding to a sleeve guide groove of the sleeve 2, in a sliding key matched sleeved mode, so that the first sleeve 7 can only axially slide relative to the sleeve 2. The sleeve jacking holes are also formed in the first sleeve 7, so that the fifth jacking pin can be conveniently inserted into the sleeve guide groove of the sleeve 2 to fix the clamping position, and the whole device structure can ensure the fixed state of the pulley overturning structure when in use.
The pulley overturning structure's skin is first casing 8, and first casing 8 establishes in the periphery of first sleeve 7 through deep groove ball bearing cover so that first casing 8 can rotate for first sleeve 7 takes place in a flexible way, and the bellied sleeve check ring in end circumference of one end of first sleeve 7 and the retaining ring 25 of the inside cutting ferrule of the retaining ring groove of the other end of first sleeve 7 press from both sides tight first casing 8 both sides simultaneously for first casing 8 can not take place axial displacement for first sleeve 7.
As a preferable technical scheme, a driving baffle ring 26 is arranged on the rotating shaft 3, and the other end of the torsion spring 20 is connected with the driving baffle ring 26.
The second sleeve 15 has a certain wall thickness, one end face of the second sleeve 15 extends out of the second shell 16, a driving baffle ring 26 is fixedly integrated on the rotating shaft 3 which is axially away from the second sleeve 15 by a certain distance, a torsion spring 20 is connected to the rotating shaft 3 between the second sleeve 15 and the driving baffle ring 26 in a connecting mode, when the second worm wheel 18 drives the second sleeve 15 to rotate, the second sleeve 15 can drive the driving baffle ring 26 to rotate with the rotating shaft 3 through the torsion spring 20, the torsion spring 20 is thick integrally, and only fine circumferential twisting deformation can be carried out under the stress effect.
As a preferable technical scheme, the device further comprises two second fixing frames 27, and the rotating shaft 3 is sleeved in the two second fixing frames 27.
The second fixing frames 27 are fixed on the upright canister 1 at a certain distance below the first fixing frames 24, the heights of the two second fixing frames 27 are consistent, and the rotating shaft 3 is sleeved on the two second fixing frames 27, so that the rotating shaft 3 can not axially move relative to the second fixing frames 27 but can relatively rotate.
In particular, the device is mainly used for lower limb traction of patients with lower limb fracture. The upright column casing 1 of the device is sleeved on an upright column (not shown in the figure) vertically fixed at the position of the bed tail of a sickbed, and the upright column is vertically fixed at the left and right positions of the bed tail of the sickbed respectively. A plurality of horizontal cross bars 28 are fixedly connected between the two upright column barrels 1 sleeved on the upright column in an up-down distribution manner to form a complete traction frame, a plurality of yielding holes of the upright column barrels 1 are correspondingly arranged on the barrel wall of the upright column barrels correspondingly, and the relative heights of the traction frame and the upright column can be adjusted and fixed by leading the jacking holes of the upright column barrels 1 into clamping positions through first jacking pins.
The first sleeve 7 inside the first shell 8 is coaxially and fixedly sleeved with a first worm wheel 10, the first worm 9 is meshed with the first worm wheel 10, the first shell 8 extends out of two ends of a worm shaft of the first worm 9, a knob 12 is coaxially and fixedly arranged on the extending end, a thrust bearing 11 (thrust ball bearing and thrust roller bearing) is sleeved on the worm shaft between two side end faces of the first worm 9 inside the first shell 8 and corresponding side inner walls of the first shell 8, and the thrust bearing 11 can enable the first worm 9 not to loosen along the axial direction inside the first shell 8. When the knob 12 is rotated to drive the first worm 9 to rotate synchronously, the first worm 9 can rotate relative to the first worm 9 due to the meshing relationship of the worm and the worm gear, and the first worm wheel 10 is coaxially fixed with the first sleeve 7, so that the first worm wheel 10 cannot rotate, and when the knob 12 drives the first worm 9 to rotate, the first worm 9 drives the first shell 8 to rotate integrally by taking the axis of the first worm wheel 10 as the center through the worm shaft. Meanwhile, because the worm and gear structure has self-locking property, when the whole first shell 8 rotates to a certain angle around the periphery of the first worm wheel 10, the rotation of the knob 12 is stopped, so that the first worm 9 drives the first shell 8 to keep a stable and static state when the angle is meshed. A fixed pulley structure is fixedly connected to the lower bottom surface of the first housing 8, and comprises a pulley frame 13 and a pulley 14 which is hinged. The two sets of pulley overturning structures on the sleeve 2 section between the two first fixing frames 24 are all of the structures.
A second worm wheel 18 is coaxially sleeved at one side of the section 3 of the rotating shaft between the two second fixing frames 27 through a second sleeve 15. The second worm wheel 18 is fixedly sleeved with the second sleeve 15 coaxially, and the second sleeve 15 is movably sleeved with the rotating shaft 3, so that the rotating shaft 3 can rotate relative to the second sleeve 15. The second worm wheel 18 is meshed with a second worm 17, a second shell 16 is arranged outside the second worm wheel 18 and the second worm 17 to wrap the second shell 16, a cross rod 28at the corresponding position of the second shell 16 is fixedly connected with the second worm wheel through a second fixing frame 27, the front end of a worm shaft of the second worm 17 extends out of the second shell 16 and is fixedly connected with a hand wheel 19at the end of the worm shaft, and thrust bearings 11 (thrust ball bearings and thrust roller bearings) are sleeved on the worm shaft between the front side and the rear side of the second worm 17 and the front side and the rear side of the corresponding second shell 16 in the same way, and the action of the thrust bearings is the same as that of the thrust bearings 11 in the first shell 8.
When the lower limb of the patient is required to be traction treated, the height of the device on the upright post is adjusted first, the height of the first fixing frame 24 is adjusted according to the size of the patient, and the device is fixed through the second ejector pin clamping position after the adjustment is completed. And then the positions of the pulley overturning structure and the rope winding wheel 4 are axially adjusted according to the actual condition of the traction position of the ankle of the lower limb of the patient, and the pulley overturning structure and the rope winding wheel are respectively screwed and fixed through a fifth jacking pin and a sixth jacking pin after the adjustment is finished. One end of the traction rope 5 is tied up and clamped in the rope clamping groove 22 of the rope winding wheel 4, so that one end of the traction rope 5 is fixed, then the traction rope 5 is wound on the rope winding wheel 4 for a plurality of circles and then is pulled upwards to the rear side of the pulley 14, and forwards extends around the pulley 14 to be connected with the traction bow 6, and the traction bow 6 is fixed and tied at the ankle of a patient. The hand wheel 19 is rotated, the hand wheel 19 drives the second worm 17 to rotate, the second worm 17 drives the second worm wheel 18 to rotate, and the second worm wheel 18 drives the driving baffle ring 26 and the rotating shaft 3 to rotate through the second sleeve 15 and the torsion spring 20, so that the rope reeling wheel 4 rotates to carry out tightness adjustment on the traction stay rope 5. Through rotating knob 12, knob 12 drives first worm 9 and rotates, again because first worm wheel 10 can't rotate for rotating knob 12 can rotate the adjustment with pulley flip structure around first worm wheel 10, can adjust the height of fixed pulley structure after the rotation adjustment, can make the stay cord 5 control traction bow 6 of traction to suitable traction angle in patient's ankle department.
The invention has the innovative technical points and the beneficial effects that:
1. The pulley overturning structure adopts a worm and gear structure, and when the first worm wheel 10 is motionless, the first worm 9 rotates around the circumference of the first worm wheel 10 to drive the whole first shell 8 and the fixed pulley structure to rotate. The worm gear has self-locking characteristic, and the effect of stopping promptly can be realized promptly for the angle after the first casing 8 can remain unidirectional rotation all the time with the fixed pulley structure can not take place the angle and slide. Simultaneously, the first worm wheel 10 is connected with the sleeve 2 through the first sleeve 7 in a sliding key manner and the sleeve 2 is connected with the first fixing frame 24 in a sliding key manner, so that the pulley overturning structure can always keep a stable state, and compared with the prior art, the fixed pulley 14 sleeve structure is fixed in angle only through screwing a top pin on the smooth sleeve 2, and the sliding phenomenon is very easy to be caused under the pressure of the traction rope 5 in the current clamping and fixing manner, so that the overturning angle of the fixed pulley 14 sleeve cannot guarantee stability. According to the pulley overturning structure, the connection mode formed by the guide groove and the worm gear is adopted, so that the stability of overturning to any angle of the pulley overturning structure can be always guaranteed. Meanwhile, the rotation knob 12 can control the worm and gear to turn over the pulley turning structure, so that the pulley turning structure has great convenience, and the fixed pulley 14 sleeve of the existing traction frame does not need to be repeatedly loosened and the top pin is screwed to turn over and adjust the angle of the fixed pulley 14 sleeve.
2. According to the elastic torsion structure, the worm gear and worm rotates to control the torsion spring 20 to drive the rotating shaft 3 to synchronously rotate with the rope winding wheel 4, the self-locking characteristic of the worm gear and worm can control the rotating shaft 3 to stop and lock with the rope winding wheel 4, the torsion spring 20 enables the rope winding wheel 4 to have a certain elastic buffer allowance when the rope winding wheel stops and locks, the lower limb of a patient can have a slight activity allowance, and the traction bow 6 can not slip on the traction part of the patient when the lower limb of the patient moves unintentionally.
3. The rope twisting wheel fixes one end of the traction rope 5 through the rope clamping groove 22, the traction rope 5 is tensioned through winding the traction rope 5 by the rope twisting wheel, and the traction tension of the traction rope 5 can be flexibly adjusted through the tensioning degree. Compared with the prior art that medical staff vertically hangs the weight on the traction rope 5 to provide traction force for the traction bow 6 of the patient, the traction force of the technical scheme can be flexibly adjusted steplessly according to actual conditions, and meanwhile, the technical scheme can not cause the condition that the weight swings when vertically hanging by winding the rope reeling wheel 4, and the whole traction tensioning process has very strong stability.
4. The structure that each sliding key is sleeved is fixed by screwing the clamping position at the guide groove of the inner sleeve structure through the ejector pin, so that the sliding keys can be fixed in the axial direction while being sleeved.
The foregoing is merely a preferred embodiment of the present invention and it should be noted that modifications and adaptations to those skilled in the art may be made without departing from the principles of the present invention, which are intended to be comprehended within the scope of the present invention.
Claims (8)
1. Orthopedics draw gear with adjustable and auto-lock function of contained angle, its characterized in that includes: the device comprises a stand column barrel, a sleeve, a pulley overturning structure, a rotating shaft, an elastic torsion structure, a rope winding wheel, a traction pull rope and a traction bow; the number of the upright post cylinders is two, and the heights of the two upright post cylinders are adjustable and are arranged on two upright posts of the sickbed; the sleeve is arranged on the two upright cylinders, and the rotating shaft is rotatably arranged on the two upright cylinders and is positioned at the lower part of the sleeve; the number of the pulley overturning structures is multiple, and the pulley overturning structures are sleeved on the sleeve;
The pulley overturning structure includes: the device comprises a first sleeve, a first shell, a deep groove ball bearing, a first worm wheel, a thrust bearing, a knob, a pulley yoke and a pulley; the first sleeve is sleeved on the sleeve, the first worm and the first worm wheel are meshed and then arranged in the first shell, the first shell is sleeved on the first sleeve through the deep groove ball bearing, the first worm wheel is fixedly sleeved on the first sleeve, the thrust bearing is sleeved on a worm shaft of the first worm between the end face of the first worm and the first shell, the thrust bearing is arranged on the inner wall of the first shell, one end of the first worm extends out of the first shell and is connected with the knob, the pulley frame is connected with the lower part of the first shell, and the pulley is arranged on the pulley frame;
the elastic torsion structure includes: the second sleeve, the second shell, the second worm wheel, the thrust bearing, the hand wheel and the torsion spring; the second sleeve is sleeved on the rotating shaft, the second worm and the second worm wheel are meshed and then arranged in the second shell, the second shell is fixedly arranged on the upright cylinder, the second worm wheel is fixedly sleeved on the second sleeve, the thrust bearing is sleeved on a worm shaft of the second worm between the end face of the second worm and the second shell, the thrust bearing is arranged on the inner wall of the second shell, one end of the second worm extends out of the second shell and is connected with the hand wheel, the second sleeve extends out of the second shell and is connected with one end of the torsion spring, and the torsion spring is sleeved on the rotating shaft and the other end of the torsion spring is connected with the rotating shaft;
The number of the rope winding wheels is multiple, the rope winding wheels are sleeved on the rotating shaft, one end of the traction stay rope is wound on the rope winding wheel, and the other end of the traction stay rope bypasses the pulley and is connected with the traction bow;
Two ends of the rope winding wheel are provided with rope winding wheel baffle rings, one rope clamping groove is formed in one rope winding wheel baffle ring, and one end of the traction stay rope is wound on the rope winding wheel and then fixed in the rope clamping groove;
The rope winding wheel is sleeved with the rotary shaft sliding key, and the rope winding wheel is provided with a jacking pin for jacking the sliding key.
2. The orthopedic traction device with adjustable included angle and self-locking function according to claim 1, further comprising a shaft rod, wherein the shaft rod is telescopically arranged in the sleeve, the sleeve is sleeved with the shaft rod sliding key, and a jacking pin for jacking the sliding key is arranged on the sleeve; the shaft lever is sleeved with a plurality of pulley overturning structures.
3. The orthopedic traction device with the adjustable included angle and the self-locking function according to claim 2, wherein the first sleeve in the pulley overturning structure is sleeved with the shaft lever sliding key, and a jacking pin for jacking the sliding key is arranged on the first sleeve.
4. The orthopedic traction device with the adjustable included angle and the self-locking function according to claim 1, further comprising two first fixing frames, wherein the first fixing frames are vertical sleeves, the horizontal sleeves are connected through rib plates, the vertical sleeves are sleeved on the upright sleeves in a height-adjustable mode, and the sleeves are sleeved in the two horizontal sleeves.
5. The orthopedic traction device with the adjustable included angle and the self-locking function according to claim 4, wherein the horizontal sleeve is sleeved with the sleeve sliding key, and a knock pin for pushing against the sliding key is arranged on the horizontal sleeve.
6. The orthopedic traction device with the adjustable included angle and the self-locking function according to claim 1, wherein the first sleeve is sleeved with the sleeve sliding key, and a jacking pin for jacking the sliding key is arranged on the first sleeve; a sleeve baffle ring is arranged on the cylinder wall at one end of the first sleeve, a check ring groove is formed in the cylinder wall at the other end of the first sleeve, and a check ring is arranged in the check ring groove.
7. The orthopedic traction device with the adjustable included angle and the self-locking function according to claim 1, wherein a driving baffle ring is arranged on the rotating shaft, and the other end of the torsion spring is connected with the driving baffle ring.
8. The orthopedic traction device with adjustable included angle and self-locking function according to claim 1, further comprising two second fixing frames, wherein the rotating shaft is sleeved in the two second fixing frames.
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| CN201910770814.6A CN110327105A (en) | 2019-08-20 | 2019-08-20 | The bone distraction device of self-locking function can be reconciled with angle |
| CN2019107708146 | 2019-08-20 |
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| CN111358542A CN111358542A (en) | 2020-07-03 |
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| CN201910770814.6A Pending CN110327105A (en) | 2019-08-20 | 2019-08-20 | The bone distraction device of self-locking function can be reconciled with angle |
| CN202010403760.2A Active CN111358542B (en) | 2019-08-20 | 2020-05-13 | Orthopedics draw gear with adjustable and auto-lock function of contained angle |
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| CN111035490B (en) * | 2019-12-27 | 2020-10-09 | 靳彩霞 | Orthopedics draw gear |
| CN112841973A (en) * | 2021-04-08 | 2021-05-28 | 栗豪豪 | Office chair capable of being used for leg training |
| CN113208864B (en) * | 2021-04-13 | 2022-07-01 | 湖南省人民医院(湖南师范大学附属第一医院) | Orthopedics is with supplementary training bed of lumbar disc herniation |
| CN113353593B (en) * | 2021-05-28 | 2022-04-12 | 北新建材(天津)有限公司 | Gypsum board panel turnover machine |
| CN114601543A (en) * | 2022-03-16 | 2022-06-10 | 北京罗森博特科技有限公司 | Elastic traction system |
| CN117686423B (en) * | 2024-02-04 | 2024-04-16 | 烟台大学 | Device and method for detecting bonding strength of concrete fiber |
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| Publication number | Priority date | Publication date | Assignee | Title |
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| CN212382718U (en) * | 2019-08-20 | 2021-01-22 | 河南省洛阳正骨医院（河南省骨科医院） | Orthopedics traction device with adjustable contained angle and self-locking function |
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| SK11462003A3 (en) * | 2003-09-11 | 2005-04-01 | Jozef Ma�Ar | Apparatus for reposition and fixation of fractured bones |
| CN103767845B (en) * | 2014-02-17 | 2014-10-15 | 张英泽 | Orthopedic hospital bed and operating bed with traction reduction function |
| CN106880465B (en) * | 2017-03-21 | 2018-08-31 | 北京思宇博特科技有限公司 | A kind of traction reduction equipment |
| CN107582155B (en) * | 2017-09-08 | 2024-08-23 | 宜昌市中心人民医院 | Adjustable combined skull traction device and traction method |
| CN209059588U (en) * | 2017-09-26 | 2019-07-05 | 宜昌市中心人民医院 | A kind of combined type pillow belt traction device |
| CN108464857A (en) * | 2017-12-24 | 2018-08-31 | 于朝用 | A kind of femur tractor |
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| CN212382718U (en) * | 2019-08-20 | 2021-01-22 | 河南省洛阳正骨医院（河南省骨科医院） | Orthopedics traction device with adjustable contained angle and self-locking function |
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