CN112353452A - External tibial frame - Google Patents
External tibial frame Download PDFInfo
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- CN112353452A CN112353452A CN202011351612.7A CN202011351612A CN112353452A CN 112353452 A CN112353452 A CN 112353452A CN 202011351612 A CN202011351612 A CN 202011351612A CN 112353452 A CN112353452 A CN 112353452A
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- 230000007246 mechanism Effects 0.000 claims abstract description 56
- 210000002303 tibia Anatomy 0.000 claims abstract description 45
- 239000007787 solid Substances 0.000 claims description 12
- 230000006835 compression Effects 0.000 claims 1
- 238000007906 compression Methods 0.000 claims 1
- 210000003423 ankle Anatomy 0.000 abstract description 19
- 210000000988 bone and bone Anatomy 0.000 description 35
- 230000009471 action Effects 0.000 description 17
- 230000000694 effects Effects 0.000 description 12
- 238000000034 method Methods 0.000 description 6
- 230000007547 defect Effects 0.000 description 4
- 230000001739 rebound effect Effects 0.000 description 4
- 208000010392 Bone Fractures Diseases 0.000 description 3
- 210000000629 knee joint Anatomy 0.000 description 3
- TVEXGJYMHHTVKP-UHFFFAOYSA-N 6-oxabicyclo[3.2.1]oct-3-en-7-one Chemical compound C1C2C(=O)OC1C=CC2 TVEXGJYMHHTVKP-UHFFFAOYSA-N 0.000 description 2
- 238000005259 measurement Methods 0.000 description 2
- 231100000915 pathological change Toxicity 0.000 description 2
- 230000036285 pathological change Effects 0.000 description 2
- 230000000149 penetrating effect Effects 0.000 description 2
- 230000008569 process Effects 0.000 description 2
- 208000024779 Comminuted Fractures Diseases 0.000 description 1
- 208000016285 Movement disease Diseases 0.000 description 1
- 206010057178 Osteoarthropathies Diseases 0.000 description 1
- 206010031264 Osteonecrosis Diseases 0.000 description 1
- 208000027520 Somatoform disease Diseases 0.000 description 1
- 230000001174 ascending effect Effects 0.000 description 1
- 230000009286 beneficial effect Effects 0.000 description 1
- 238000006073 displacement reaction Methods 0.000 description 1
- 230000006872 improvement Effects 0.000 description 1
- 230000009916 joint effect Effects 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 208000027753 pain disease Diseases 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
- A61B17/16—Instruments for performing osteoclasis; Drills or chisels for bones; Trepans
- A61B17/1657—Bone breaking devices
-
- A—HUMAN NECESSITIES
- A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
- A61B—DIAGNOSIS; SURGERY; IDENTIFICATION
- A61B17/00—Surgical instruments, devices or methods
- A61B17/14—Surgical saws
- A61B17/15—Guides therefor
- A61B17/154—Guides therefor for preparing bone for knee prosthesis
- A61B17/157—Cutting tibia
-
- A—HUMAN NECESSITIES
- A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
- A61B—DIAGNOSIS; SURGERY; IDENTIFICATION
- A61B17/00—Surgical instruments, devices or methods
- A61B17/16—Instruments for performing osteoclasis; Drills or chisels for bones; Trepans
- A61B17/17—Guides or aligning means for drills, mills, pins or wires
- A61B17/1732—Guides or aligning means for drills, mills, pins or wires for bone breaking devices
-
- A—HUMAN NECESSITIES
- A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
- A61B—DIAGNOSIS; SURGERY; IDENTIFICATION
- A61B17/00—Surgical instruments, devices or methods
- A61B17/16—Instruments for performing osteoclasis; Drills or chisels for bones; Trepans
- A61B17/17—Guides or aligning means for drills, mills, pins or wires
- A61B17/1739—Guides or aligning means for drills, mills, pins or wires specially adapted for particular parts of the body
- A61B17/1764—Guides or aligning means for drills, mills, pins or wires specially adapted for particular parts of the body for the knee
-
- A—HUMAN NECESSITIES
- A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
- A61B—DIAGNOSIS; SURGERY; IDENTIFICATION
- A61B90/00—Instruments, implements or accessories specially adapted for surgery or diagnosis and not covered by any of the groups A61B1/00 - A61B50/00, e.g. for luxation treatment or for protecting wound edges
- A61B90/10—Instruments, implements or accessories specially adapted for surgery or diagnosis and not covered by any of the groups A61B1/00 - A61B50/00, e.g. for luxation treatment or for protecting wound edges for stereotaxic surgery, e.g. frame-based stereotaxis
- A61B90/14—Fixators for body parts, e.g. skull clamps; Constructional details of fixators, e.g. pins
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- Health & Medical Sciences (AREA)
- Surgery (AREA)
- Life Sciences & Earth Sciences (AREA)
- Medical Informatics (AREA)
- Animal Behavior & Ethology (AREA)
- Oral & Maxillofacial Surgery (AREA)
- Nuclear Medicine, Radiotherapy & Molecular Imaging (AREA)
- Engineering & Computer Science (AREA)
- Biomedical Technology (AREA)
- Heart & Thoracic Surgery (AREA)
- Orthopedic Medicine & Surgery (AREA)
- Molecular Biology (AREA)
- Veterinary Medicine (AREA)
- General Health & Medical Sciences (AREA)
- Public Health (AREA)
- Dentistry (AREA)
- Pathology (AREA)
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- Physical Education & Sports Medicine (AREA)
- Transplantation (AREA)
- Surgical Instruments (AREA)
Abstract
The invention discloses a tibia outrigger which comprises an ankle embracing device, wherein a rack is arranged on one side of the ankle embracing device, a sleeve is arranged at the upper end of the rack, the rack is connected with the sleeve through a transverse locking mechanism, a vertical rod is arranged in the sleeve, the upper end of the vertical rod penetrates out of the sleeve, the sleeve and the vertical rod are fixed through a vertical locking mechanism, a osteotomy block locking mechanism is arranged on the vertical rod, and an osteotomy block is arranged on one side of the osteotomy block locking mechanism.
Description
Technical Field
The invention relates to the technical field of medical instruments, in particular to a tibia external frame.
Background
The artificial knee joint replacement operation is one of conventional treatment methods for treating knee joint pathological changes, is used for treating osteonecrosis, osteoarthropathy with comminuted fracture dislocation, incapability of restoration, pain and movement disorder, and is one of conventional treatment methods for treating knee joint pathological changes.
Disclosure of Invention
The present invention is directed to a tibial outer frame to solve the above problems of the prior art.
In order to solve the technical problems, the invention provides the following technical scheme: a shin bone outrigger comprises an ankle embracing device, is used for embracing an ankle and primarily fixing the shin bone outrigger and a shin bone of a human body, belongs to the prior art, one side of the ankle embracing device is provided with a rack, one end of the rack is fixedly connected with the ankle embracing device, rack teeth are positioned at the lower part, the upper end of the rack is provided with a sleeve, the sleeve is hollow, the rack is connected with the sleeve through a transverse locking mechanism, the transverse locking mechanism can simultaneously adjust the relative position of the rack and the sleeve so as to adjust the position of the sleeve away from the shin bone, a vertical rod is arranged in the sleeve and can vertically slide up and down in the sleeve, the upper end of the vertical rod penetrates out of the sleeve, the sleeve and the vertical rod are fixed through a vertical locking mechanism, the vertical locking mechanism is simultaneously used for adjusting the overall length of the sleeve and the vertical rod so as to adapt, the osteotomy block locking mechanism is used for locking the osteotomy block, so that the osteotomy block is located at an osteotomy position, an osteotomy block is arranged on one side of the osteotomy block locking mechanism and used for accurately determining the position of the osteotomy, and after the position of the osteotomy block is determined, a cutter can be inserted into a through hole of the osteotomy block for osteotomy.
Preferably, the montant upper end is provided with the cross bridge, and the cross bridge is knocked when using and is fixed on the shin bone for improve the stability of shin bone outrigger, but the auxiliary measurement power line simultaneously, one side is provided with waist shape hole, the downthehole cross bridge extractor that is provided with of waist shape, cut the bone and accomplish the back, waist shape hole and cross bridge extractor are used for the supplementary cross bridge that takes out.
Preferably, the transverse locking mechanism comprises an adjusting block, a pressure knob, a spring, a transverse pin, a waist-shaped hole and a pin, the adjusting block is sleeved on the rack and can slide along the rack, the pressure knob is arranged at the upper end of the adjusting block and penetrates through the adjusting block, the spring is sleeved in the middle of the pressure knob, the lower end of the pressure knob is sleeved on the rack, the transverse pin is further arranged at the lower end of the pressure knob, teeth of the transverse pin and the rack are meshed, under the meshing action of the transverse pin and the rack and the pressure action of the spring, the relative position of the rack and the sleeve is locked, the waist-shaped hole is arranged on the side wall of the pressure knob, the pin is arranged at the position corresponding to the adjusting block and the waist-shaped hole, the pin is inserted into the waist-shaped hole, the waist-shaped hole and the pin are used for limiting the downward pressing displacement of the pressure knob, the spring is protected from generating plastic deformation, one side of the upper end, when the relative position of the rack and the sleeve needs to be adjusted, the pressing button is pressed, the spring is compressed, the meshing effect of the transverse pin and the rack disappears, the rack can be adjusted by pulling, after the adjustment is completed, the pressing button is driven by the spring to reset, the transverse pin and the rack are meshed again, and the relative position of the rack and the sleeve is locked.
Preferably, vertical locking mechanical system is including solid piece, knob, screw, the solid piece has been cup jointed on the montant, solid piece lower extreme and sleeve fixed connection, solid piece one side is provided with the knob, the knob is close the one end of solid piece and is provided with the screw, knob and screw fixed connection, the screw penetrates solid piece internal contact montant, and montant and telescopic relative position are locked under the pressure of screw dynamic effect, and when needing to adjust montant and telescopic relative position, the screw can.
Preferably, the osteotomy block locking mechanism comprises a pressing and fixing block, a button buckle, two springs, a clamping hook, a connecting column, a clamping groove and a column hole, the vertical rod is provided with the pressing and fixing block, the upper end of the pressing and fixing block is provided with the button buckle, the lower end of one side of the button buckle is provided with the two springs, the two springs are fixed on the pressing and fixing block, the lower end of the middle part of the button buckle is hinged with the pressing and fixing block, the other side of the button buckle is provided with the clamping hook, one end of the pressing and fixing block, which is close to the osteotomy block, is provided with the connecting column, the connecting columns are provided with two clamping grooves, the positions, which correspond to the osteotomy block and the clamping hook, are provided with the column hole, the clamping hook and the clamping groove are mutually clamped, the two connecting columns are inserted into the column hole to form three-point fixation, the osteotomy block, the button buckle is pressed, the second spring is compressed, the clamping hook tilts, the clamping effect of the clamping hook and the clamping groove disappears, the locking effect of the osteotomy block locking mechanism on the osteotomy block disappears, and after the osteotomy block is taken down, the button buckle resets under the rebound effect of the second spring.
Preferably, a vertical through hole is formed in the middle of the vertical rod, the button buckle penetrates through the vertical through hole, the osteotomy block locking mechanism can move up and down along the vertical through hole, one side of the press-fixing block is provided with a second knob, one side of the second knob, which is close to the press-fixing block, is provided with a second screw, one end of the second screw is fixed on the second knob, the second screw penetrates through the press-fixing block to be in contact with the vertical rod, the relative position of the osteotomy block locking mechanism and the vertical rod can be locked under the action of the second screw, and when the relative position of the osteotomy block locking mechanism and the vertical rod needs to be adjusted, the second screw can be rotated, so that the transverse bridge can still adjust the upper position and the lower position of the osteotomy block after being fixed on the tibia, the osteotomy position is further accurately determined, and meanwhile, if an error is generated.
Preferably, the spout has been seted up on the horizontal bridge, the montant upper end is provided with the slider, the slider is located the spout, the spout has certain pressure dynamic effect to the slider for slider and the mutual slip of spout have certain sliding resistance, the slider upper end is provided with the knob handle, the knob handle is fixed in on the slider for control adjusts the relative position of horizontal bridge and shin bone, the horizontal bridge of spout one end break-over, the spout has certain pressure power to the slider, the one end downside that the spout was kept away from to the horizontal bridge is provided with the pin, the pin is squeezed into the shin bone, improves the stability of shin bone outrigger.
Preferably, be provided with logical groove on the cross bridge lateral wall, waist shape hole and logical groove intercommunication, cross bridge extractor lower extreme is provided with waist shape lug, when needing to take out the cross bridge, inserts the cross bridge extractor waist shape hole, rotates certain angle with the cross bridge extractor again, makes waist shape lug insert logical groove, and it can to exert an ascending power to the cross bridge extractor, extract the shin bone with the pin.
Preferably, the osteotomy block comprises a left osteotomy block, a right osteotomy block and a symmetrical osteotomy block, and the left osteotomy block, the right osteotomy block or the symmetrical osteotomy block can be selected and used according to the tibial defect amount during osteotomy.
Preferably, the lower part of the osteotomy block is provided with a positioning hole, the positioning hole is internally used for penetrating a positioning nail, the osteotomy block is fixed at the tibia osteotomy position, the retroversion angle of the osteotomy block is ensured, the osteotomy conforms to the force line angle, and the bone-setting amount is more accurate.
Compared with the prior art, the invention has the following beneficial effects:
1. according to the tibia outrigger disclosed by the invention, the transverse locking mechanism can adjust the relative positions of the rack and the sleeve so as to adjust the position of the sleeve away from the tibia, the vertical locking mechanism is used for adjusting the overall length of the sleeve and the vertical rod so as to adapt to the tibia with different lengths, the osteotomy block locking mechanism is used for locking the osteotomy block, different osteotomy blocks can be replaced according to the tibia defect amount, so that the osteotomy block is accurately positioned at the osteotomy position, and the osteotomy amount is accurate;
2. the tibia outer frame can be selected to be provided with a transverse bridge or not, and is provided with the transverse bridge, when the tibia outer frame is used, the tibia outer frame is knocked and fixed on a tibia, the stability of the tibia outer frame is improved, meanwhile, the force line can be measured in an auxiliary mode, and the tibia outer frame is provided with an outer frame extractor, so that the outer frame is convenient to dismount;
3. the clamping hook and the clamping groove are mutually clamped, and the two connecting columns are inserted into the column holes to form three-point fixation, so that the osteotomy block is firmly fixed;
4. the transverse bridge is fixed on the tibia, the upper position and the lower position of the osteotomy block can still be adjusted, the osteotomy position is further accurately determined, and meanwhile, if an error is generated when the transverse bridge is fixed, the error can be adjusted;
5. the lower part of the osteotomy block is provided with a positioning hole, the positioning hole is internally used for penetrating a positioning nail, the osteotomy block is fixed at the tibial osteotomy part, and a 3-degree back inclination angle of the osteotomy block is ensured, so that the osteotomy conforms to a force line, and the bone fracture amount is more accurate
Drawings
The accompanying drawings, which are included to provide a further understanding of the invention and are incorporated in and constitute a part of this specification, illustrate embodiments of the invention and together with the description serve to explain the principles of the invention and not to limit the invention. In the drawings:
FIG. 1 is a front view of a first tibial outer frame version of the present invention;
FIG. 2 is an elevation view of a second tibial outer frame version of the present invention;
FIG. 3 is a cross-sectional view of the lateral locking mechanism of the present invention;
FIG. 4 is a front view of the vertical locking mechanism of the present invention;
FIG. 5 is a perspective view of the osteotomy block locking mechanism of the present invention;
FIG. 6 is a perspective view of a second knob, second screw, etc. of the present invention;
FIG. 7 is a perspective view of the cross-bridge of the present invention;
FIG. 8 is a front view of the transverse bridge extractor of the present invention;
FIG. 9 is a perspective view of the left lateral osteotomy block of the present invention;
FIG. 10 is a perspective view of the right osteotomy block of the present invention;
FIG. 11 is a perspective view of a symmetrical osteotomy block of the present invention;
in the figure: 1. an ankle holding device; 2. a rack; 3. a sleeve; 4. a lateral locking mechanism; 5. a vertical rod; 6. a vertical locking mechanism; 7. a osteotomy block locking mechanism; 8. cutting bone blocks; 9. a transverse bridge; 10. a waist-shaped hole; 11. a transverse bridge extractor; 12. an adjusting block; 13. pressing and twisting; 14. a spring; 15. a transverse pin; 16. a waist-shaped hole; 17. a pin; 18. fixing blocks; 19. a knob; 20. a screw; 21. pressing and fixing the block; 22. a button is buckled; 23. a second spring; 24. a hook; 25. connecting columns; 26. a card slot; 27. a post hole; 28. a vertical through hole; 29. a second knob; 30. a second screw; 31. a chute; 32. a slider; 33. a knob handle; 34. a pin; 35. positioning holes; 36. a through groove; 37. a waist-shaped bump; 38. a left osteotomy block; 39. a right osteotomy block; 40. symmetrical osteotomy blocks.
Detailed Description
The technical solutions in the embodiments of the present invention will be clearly and completely described below with reference to the drawings in the embodiments of the present invention, and it is obvious that the described embodiments are only a part of the embodiments of the present invention, and not all of the embodiments. All other embodiments, which can be derived by a person skilled in the art from the embodiments given herein without making any creative effort, shall fall within the protection scope of the present invention.
Example 1: the invention provides a first scheme of a shin external frame, as shown in figure 1, which comprises an ankle embracing device 1 for embracing an ankle and primarily fixing the shin external frame and a shin of a human body, and belongs to the prior art, wherein one side of the ankle embracing device 1 is provided with a rack 2, one end of the rack 2 is fixedly connected with the ankle embracing device 1, teeth of the rack 2 are positioned at the lower part, the upper end of the rack 2 is provided with a sleeve 3, the sleeve 3 is hollow, the rack 2 and the sleeve 3 are connected through a transverse locking mechanism 4, the transverse locking mechanism 4 can simultaneously adjust the relative position of the rack 2 and the sleeve 3 so as to adjust the position of the sleeve 3 away from the shin, a vertical rod 5 is arranged in the sleeve 3, the vertical rod 5 can vertically slide up and down in the sleeve 3, the upper end of the vertical rod 5 penetrates out of the sleeve 3, the sleeve 3 and the vertical rod 5 are fixed through, with the shin bone that adapts to different length, be provided with on the montant 5 and cut bone piece locking mechanical system 7, cut bone piece locking mechanical system 7 and be used for locking and cut bone piece 8 for cut bone piece 8 is in cuts the bone position, cuts bone piece locking mechanical system 7 one side and is provided with and cuts bone piece 8, cuts bone piece 8 and is used for the accurate position of confirming cutting the bone, cuts bone piece 8's position after confirming, can cut the bone in the cutter of cutting the through-hole of bone piece 8 and cut the bone.
As shown in fig. 3, the transverse locking mechanism 4 comprises an adjusting block 12, a pressure knob 13, a spring 14, a cross pin 15, a kidney-shaped hole 16 and a pin 17, the adjusting block 12 is sleeved on the rack 2, the adjusting block 12 can slide along the rack 2, the pressure knob 13 is arranged at the upper end of the adjusting block 12, the pressure knob 13 penetrates through the adjusting block 12, the spring 14 is sleeved at the middle part of the pressure knob 13, the lower end of the pressure knob 13 is sleeved on the rack 2, the cross pin 15 is also arranged at the lower end of the pressure knob 13, the cross pin 15 is meshed with teeth of the rack 2, under the meshing action of the cross pin 15 and the rack 2 and the pressure action of the spring 14, the relative positions of the rack 2 and the sleeve 3 are locked, the kidney-shaped hole 16 is arranged on the side wall of the pressure knob 13, the pin 17 is arranged at the position corresponding to the adjusting block 12 and the kidney-shaped hole 16, the pin 17 is inserted into the kidney-shaped hole 16, the kidney-shaped hole 16 and the kidney-shaped hole 17 are used for, when the relative position of the rack 2 and the sleeve 3 needs to be adjusted, the pressing button 13 is pressed, the spring 14 is compressed, the meshing effect of the transverse pin 15 and the rack 2 disappears, the rack 2 can be adjusted by pulling, after the adjustment is completed, the pressing button 13 is driven by the spring 14 to reset, the transverse pin 15 and the rack 2 are meshed again, and the relative position of the rack 2 and the sleeve 3 is locked.
As shown in fig. 4, the vertical locking mechanism 6 comprises a fixed block 18, a knob 19 and a screw 20, the fixed block 18 is sleeved on the vertical rod 5, the lower end of the fixed block 18 is fixedly connected with the sleeve 3, the knob 19 is arranged on one side of the fixed block 18, the screw 20 is arranged at one end, close to the fixed block 18, of the knob 19, the knob 19 is fixedly connected with the screw 20, the screw 20 penetrates into the fixed block 18 to contact with the vertical rod 5, the relative position of the vertical rod 5 and the sleeve 3 is locked under the pressing action of the screw 20, and when the relative position of the vertical rod 5 and the sleeve 3 needs to be adjusted, the screw 20 can be used.
Referring to fig. 5, 9 to 11, the osteotomy block locking mechanism 7 includes a pressing block 21, a button buckle 22, a second spring 23, a hook 24, a connecting post 25, a slot 26 and a post hole 27, the pressing block 21 is disposed on the vertical rod 5, the button buckle 22 is disposed at the upper end of the pressing block 21, the second spring 23 is disposed at the lower end of one side of the button buckle 22, the second spring 23 is fixed on the pressing block 21, the lower end of the middle portion of the button buckle 22 is hinged to the pressing block 21, the hook 24 is disposed at the other side of the button buckle 22, the connecting post 25 is disposed at one end of the pressing block 21 close to the osteotomy block 8, the connecting post 25 is provided with two connecting posts 25, the slots 26 are disposed at positions corresponding to the osteotomy block 8 and the hook 24, the post hole 27 is disposed at positions corresponding to the osteotomy block 8 and the connecting post 25, the hook 24 and the slot 26 are mutually clamped, the two connecting posts 25 are, when the osteotomy block 8 needs to be taken down after the osteotomy is finished, the button buckle 22 is pressed, the second spring 23 is compressed, the hook 24 tilts, the clamping effect of the hook 24 and the clamping groove 26 disappears, the locking effect of the osteotomy block locking mechanism 7 on the osteotomy block 8 disappears, and after the osteotomy block 8 is taken down, the button buckle 22 resets under the rebound effect of the second spring 23.
Referring to fig. 9 to 11, the osteotomy block 8 includes a left osteotomy block 38, a right osteotomy block 39, and a symmetrical osteotomy block 40, and the left osteotomy block 38, the right osteotomy block 39, or the symmetrical osteotomy block 40 can be selectively used according to the tibial defect amount during osteotomy.
As shown in fig. 9-11, the lower portion of the osteotomy block 8 is provided with a positioning hole 35, the positioning hole 35 is used for passing through a positioning nail, the osteotomy block 8 is fixed at the tibial osteotomy position, a 3-degree back inclination angle of the osteotomy block is ensured, the osteotomy conforms to a force line, and the bone fracture amount is more accurate.
Example 2: the invention provides a second scheme of a shin bone external frame, as shown in figure 2, which comprises an ankle embracing device 1 for embracing an ankle and primarily fixing the shin bone external frame and a shin bone of a human body, and belongs to the prior art, wherein one side of the ankle embracing device 1 is provided with a rack 2, one end of the rack 2 is fixedly connected with the ankle embracing device 1, teeth of the rack 2 are positioned at the lower part, the upper end of the rack 2 is provided with a sleeve 3, the sleeve 3 is hollow, the rack 2 and the sleeve 3 are connected through a transverse locking mechanism 4, the transverse locking mechanism 4 can simultaneously adjust the relative position of the rack 2 and the sleeve 3 so as to adjust the position of the sleeve 3 away from the shin bone, a vertical rod 5 is arranged in the sleeve 3, the vertical rod 5 can vertically slide up and down in the sleeve 3, the upper end of the vertical rod 5 penetrates out of the sleeve 3, the sleeve 3 and the vertical rod, with the shin bone that adapts to different length, be provided with on the montant 5 and cut bone piece locking mechanical system 7, cut bone piece locking mechanical system 7 and be used for locking and cut bone piece 8 for cut bone piece 8 is in cuts the bone position, cuts bone piece locking mechanical system 7 one side and is provided with and cuts bone piece 8, cuts bone piece 8 and is used for the accurate position of confirming cutting the bone, cuts bone piece 8's position after confirming, can cut the bone in the cutter of cutting the through-hole of bone piece 8 and cut the bone.
Like fig. 2, 7, montant 5 upper end is provided with horizontal bridge 9, and horizontal bridge 9 strikes when using and fixes on the shin bone for improve the stability of shin bone outrigger, but the auxiliary measurement power line simultaneously, one side is provided with waist shape hole 10, is provided with horizontal bridge extractor 11 in waist shape hole 10, cuts the bone and accomplishes the back, and waist shape hole 10 and horizontal bridge extractor 11 are used for assisting to take out horizontal bridge 9.
As shown in fig. 3, the transverse locking mechanism 4 comprises an adjusting block 12, a pressure knob 13, a spring 14, a cross pin 15, a kidney-shaped hole 16 and a pin 17, the adjusting block 12 is sleeved on the rack 2, the adjusting block 12 can slide along the rack 2, the pressure knob 13 is arranged at the upper end of the adjusting block 12, the pressure knob 13 penetrates through the adjusting block 12, the spring 14 is sleeved at the middle part of the pressure knob 13, the lower end of the pressure knob 13 is sleeved on the rack 2, the cross pin 15 is also arranged at the lower end of the pressure knob 13, the cross pin 15 is meshed with teeth of the rack 2, under the meshing action of the cross pin 15 and the rack 2 and the pressure action of the spring 14, the relative positions of the rack 2 and the sleeve 3 are locked, the kidney-shaped hole 16 is arranged on the side wall of the pressure knob 13, the pin 17 is arranged at the position corresponding to the adjusting block 12 and the kidney-shaped hole 16, the pin 17 is inserted into the kidney-shaped hole 16, the kidney-shaped hole 16 and the kidney-shaped hole 17 are used for, when the relative position of the rack 2 and the sleeve 3 needs to be adjusted, the pressing button 13 is pressed, the spring 14 is compressed, the meshing effect of the transverse pin 15 and the rack 2 disappears, the rack 2 can be adjusted by pulling, after the adjustment is completed, the pressing button 13 is driven by the spring 14 to reset, the transverse pin 15 and the rack 2 are meshed again, and the relative position of the rack 2 and the sleeve 3 is locked.
As shown in fig. 4, the vertical locking mechanism 6 comprises a fixed block 18, a knob 19 and a screw 20, the fixed block 18 is sleeved on the vertical rod 5, the lower end of the fixed block 18 is fixedly connected with the sleeve 3, the knob 19 is arranged on one side of the fixed block 18, the screw 20 is arranged at one end, close to the fixed block 18, of the knob 19, the knob 19 is fixedly connected with the screw 20, the screw 20 penetrates into the fixed block 18 to contact with the vertical rod 5, the relative position of the vertical rod 5 and the sleeve 3 is locked under the pressing action of the screw 20, and when the relative position of the vertical rod 5 and the sleeve 3 needs to be adjusted, the screw 20 can be used.
Referring to fig. 5, 9 to 11, the osteotomy block locking mechanism 7 includes a pressing block 21, a button buckle 22, a second spring 23, a hook 24, a connecting post 25, a slot 26 and a post hole 27, the pressing block 21 is disposed on the vertical rod 5, the button buckle 22 is disposed at the upper end of the pressing block 21, the second spring 23 is disposed at the lower end of one side of the button buckle 22, the second spring 23 is fixed on the pressing block 21, the lower end of the middle portion of the button buckle 22 is hinged to the pressing block 21, the hook 24 is disposed at the other side of the button buckle 22, the connecting post 25 is disposed at one end of the pressing block 21 close to the osteotomy block 8, the connecting post 25 is provided with two connecting posts 25, the slots 26 are disposed at positions corresponding to the osteotomy block 8 and the hook 24, the post hole 27 is disposed at positions corresponding to the osteotomy block 8 and the connecting post 25, the hook 24 and the slot 26 are mutually clamped, the two connecting posts 25 are, when the osteotomy block 8 needs to be taken down after the osteotomy is finished, the button buckle 22 is pressed, the second spring 23 is compressed, the hook 24 tilts, the clamping effect of the hook 24 and the clamping groove 26 disappears, the locking effect of the osteotomy block locking mechanism 7 on the osteotomy block 8 disappears, and after the osteotomy block 8 is taken down, the button buckle 22 resets under the rebound effect of the second spring 23.
As shown in fig. 6, a vertical through hole 28 is formed in the middle of the vertical rod 5, the button buckle 22 passes through the vertical through hole 28, the osteotomy block locking mechanism 7 can move up and down along the vertical through hole 28, a second knob 29 is arranged on one side of the press-fixing block 21, a second screw 30 is arranged on one side of the second knob 29 close to the press-fixing block 21, one end of the second screw 30 is fixed on the second knob 29, the second screw 30 passes through the press-fixing block 21 and contacts with the vertical rod 5, the relative position of the osteotomy block locking mechanism 7 and the vertical rod 5 can be locked under the action of the pressing action of the second screw 30, when the relative position of the osteotomy block locking mechanism 7 and the vertical rod 5 needs to be adjusted, the second screw 30 is rotated, after the transverse bridge 9 is fixed on the tibia, the upper position and the lower position of the osteotomy block 8 can still be adjusted, the osteotomy position is further accurately determined, and meanwhile, if an error is generated when the transverse bridge 9 is fixed, the error can be adjusted.
As shown in fig. 7, the sliding groove 31 has been opened on the transverse bridge 9, the upper end of the vertical rod 5 is provided with the slider 32, the slider 32 is located in the sliding groove 31, the sliding groove 31 has a certain pressing action on the slider 32, so that the slider 32 and the sliding groove 31 slide each other with a certain sliding resistance, the upper end of the slider 32 is provided with the knob handle 33, the knob handle 33 is fixed on the slider 32, the relative position of the transverse bridge 9 and the tibia can be adjusted by holding, meanwhile, the relative position of the vertical rod 5 and the transverse bridge 9 can be fixed, the transverse bridge 9 is penetrated through by one end of the sliding groove 31, so that the vertical rod 5 can be detached along the sliding groove 31, the sliding groove 31 has a certain pressing action on the slider 32, the lower side of one end of the transverse bridge 9 far away.
As shown in fig. 7-8, a through groove 36 is formed in the side wall of the transverse bridge 9, the waist-shaped hole 10 is communicated with the through groove 36, a waist-shaped protrusion 37 is arranged at the lower end of the transverse bridge extractor 11, when the transverse bridge 9 needs to be extracted, the transverse bridge extractor 11 is inserted into the waist-shaped hole 10, the transverse bridge extractor 11 is rotated by a certain angle, the waist-shaped protrusion 37 is inserted into the through groove 36, an upward force is applied to the transverse bridge extractor 11, and the pin 34 is pulled out of the tibia.
Referring to fig. 9 to 11, the osteotomy block 8 includes a left osteotomy block 38, a right osteotomy block 39, and a symmetrical osteotomy block 40, and the left osteotomy block 38, the right osteotomy block 39, or the symmetrical osteotomy block 40 can be selectively used according to the tibial defect amount during osteotomy.
As shown in fig. 9-11, the lower portion of the osteotomy block 8 is provided with a positioning hole 35, the positioning hole 35 is used for passing through a positioning nail, the osteotomy block 8 is fixed at the tibial osteotomy position, a 3-degree back inclination angle of the osteotomy block is ensured, the osteotomy conforms to a force line, and the bone fracture amount is more accurate.
The working principle of the first scheme is as follows: firstly, selecting a proper osteotomy block 8, locking the osteotomy block 8 by using an osteotomy block locking mechanism 7, then embracing an ankle by using an ankle embracing device 1, preliminarily fixing a shin bone external frame and a shin bone of a human body, then adjusting the relative position of a rack 2 and a sleeve 3 by using a transverse locking mechanism 4, namely adjusting the position of the sleeve 3 away from the shin bone, then adjusting the overall length of the sleeve 3 and a vertical rod 5 by using a vertical locking mechanism 6, namely adapting to shin bones with different lengths, placing the osteotomy block 8 at an accurate osteotomy position, and finally inserting a cutter into a through hole of the osteotomy block 8 for osteotomy;
the working principle of the first scheme is as follows: firstly, selecting a proper osteotomy block 8, locking the osteotomy block 8 by using an osteotomy block locking mechanism 7, then embracing an ankle by using an ankle embracing device 1, preliminarily fixing a shin bone external frame and a shin bone of a human body, then adjusting the relative position of a rack 2 and a sleeve 3 by using a transverse locking mechanism 4, namely adjusting the position of the sleeve 3 away from the shin bone, then adjusting the overall length of the sleeve 3 and a vertical rod 5 by using a vertical locking mechanism 6, fixing a transverse bridge 9 on the shin bone, then rotating a second screw 30, adjusting the upper position and the lower position of the osteotomy block 8, enabling the osteotomy block 8 to be placed at an accurate osteotomy position, and finally inserting a cutter into a through hole of the osteotomy block 8 to perform osteotomy;
the osteotomy block locking mechanism 7 has the following principle: pothook 24 and draw-in groove 26 joint each other, two spliced poles 25 insert in the post hole 27, form three point fixation, it is very firm to cut bone piece 8 fixed, cut when needing to take off cut bone piece 8 after the bone is accomplished, press button buckle 22, No. two spring 23 is compressed, pothook 24 perk, the joint effect of pothook 24 and draw-in groove 26 disappears, cut bone piece locking mechanical system 7 and disappear to the locking effect of cutting bone piece 8, take off cut bone piece 8 after, button buckle 22 resets under No. two spring 23's rebound effect.
The principle of the transverse locking mechanism 4 is: pressing the pressure knob 13, compressing the spring 14, enabling the meshing action of the transverse pin 15 and the rack 2 to disappear, pulling the rack 2 to adjust, after the adjustment is completed, driving the pressure knob 13 to reset by the spring 14, enabling the transverse pin 15 and the rack 2 to be meshed again, and locking the relative positions of the rack 2 and the sleeve 3;
the principle of the vertical locking mechanism 6 is: the relative position of the stem 5 and the sleeve 3 can be adjusted by means of the screw 20.
It is noted that, herein, relational terms such as first and second, and the like may be used solely to distinguish one entity or action from another entity or action without necessarily requiring or implying any actual such relationship or order between such entities or actions. Also, the terms "comprises," "comprising," or any other variation thereof, are intended to cover a non-exclusive inclusion, such that a process, method, article, or apparatus that comprises a list of elements does not include only those elements but may include other elements not expressly listed or inherent to such process, method, article, or apparatus.
Finally, it should be noted that: although the present invention has been described in detail with reference to the foregoing embodiments, it will be apparent to those skilled in the art that changes may be made in the embodiments and/or equivalents thereof without departing from the spirit and scope of the invention. Any modification, equivalent replacement, or improvement made within the spirit and principle of the present invention should be included in the protection scope of the present invention.
Claims (10)
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| CN202011351612.7A CN112353452B (en) | 2020-11-26 | 2020-11-26 | A tibial external frame |
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| CN202011351612.7A CN112353452B (en) | 2020-11-26 | 2020-11-26 | A tibial external frame |
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| CN112353452B CN112353452B (en) | 2024-12-31 |
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Cited By (1)
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| CN116407208A (en) * | 2021-12-31 | 2023-07-11 | 苏州微创关节医疗科技有限公司 | Extramedullary positioning device for tibial osteotomy |
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