CN113712709B - Artificial temporomandibular joint preparation device - Google Patents

Artificial temporomandibular joint preparation device Download PDF

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Publication number
CN113712709B
CN113712709B CN202110972598.0A CN202110972598A CN113712709B CN 113712709 B CN113712709 B CN 113712709B CN 202110972598 A CN202110972598 A CN 202110972598A CN 113712709 B CN113712709 B CN 113712709B
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plate
bone
fibula
cutting
cutting plate
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CN202110972598.0A
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CN113712709A (en
Inventor
张碧涛
张春雨
陈贤帅
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Guangdong Zhongke Anchi Biotechnology Co ltd
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Guangdong Zhongke Anchi Biotechnology Co ltd
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    • A—HUMAN NECESSITIES
    • A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
    • A61F—FILTERS IMPLANTABLE INTO BLOOD VESSELS; PROSTHESES; DEVICES PROVIDING PATENCY TO, OR PREVENTING COLLAPSING OF, TUBULAR STRUCTURES OF THE BODY, e.g. STENTS; ORTHOPAEDIC, NURSING OR CONTRACEPTIVE DEVICES; FOMENTATION; TREATMENT OR PROTECTION OF EYES OR EARS; BANDAGES, DRESSINGS OR ABSORBENT PADS; FIRST-AID KITS
    • A61F2/00—Filters implantable into blood vessels; Prostheses, i.e. artificial substitutes or replacements for parts of the body; Appliances for connecting them with the body; Devices providing patency to, or preventing collapsing of, tubular structures of the body, e.g. stents
    • A61F2/02—Prostheses implantable into the body
    • A61F2/30—Joints
    • A61F2/30988—Other joints not covered by any of the groups A61F2/32 - A61F2/4425
    • A61F2/3099—Other joints not covered by any of the groups A61F2/32 - A61F2/4425 for temporo-mandibular [TM, TMJ] joints
    • A—HUMAN NECESSITIES
    • A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
    • A61B—DIAGNOSIS; SURGERY; IDENTIFICATION
    • A61B17/00—Surgical instruments, devices or methods, e.g. tourniquets
    • A61B17/16—Bone cutting, breaking or removal means other than saws, e.g. Osteoclasts; 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, e.g. tourniquets
    • A61B17/16—Bone cutting, breaking or removal means other than saws, e.g. Osteoclasts; 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
    • A61F—FILTERS IMPLANTABLE INTO BLOOD VESSELS; PROSTHESES; DEVICES PROVIDING PATENCY TO, OR PREVENTING COLLAPSING OF, TUBULAR STRUCTURES OF THE BODY, e.g. STENTS; ORTHOPAEDIC, NURSING OR CONTRACEPTIVE DEVICES; FOMENTATION; TREATMENT OR PROTECTION OF EYES OR EARS; BANDAGES, DRESSINGS OR ABSORBENT PADS; FIRST-AID KITS
    • A61F2/00—Filters implantable into blood vessels; Prostheses, i.e. artificial substitutes or replacements for parts of the body; Appliances for connecting them with the body; Devices providing patency to, or preventing collapsing of, tubular structures of the body, e.g. stents
    • A61F2/02—Prostheses implantable into the body
    • A61F2/30—Joints
    • A61F2/30721—Accessories
    • A61F2/30749—Fixation appliances for connecting prostheses to the body
    • A—HUMAN NECESSITIES
    • A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
    • A61F—FILTERS IMPLANTABLE INTO BLOOD VESSELS; PROSTHESES; DEVICES PROVIDING PATENCY TO, OR PREVENTING COLLAPSING OF, TUBULAR STRUCTURES OF THE BODY, e.g. STENTS; ORTHOPAEDIC, NURSING OR CONTRACEPTIVE DEVICES; FOMENTATION; TREATMENT OR PROTECTION OF EYES OR EARS; BANDAGES, DRESSINGS OR ABSORBENT PADS; FIRST-AID KITS
    • A61F2/00—Filters implantable into blood vessels; Prostheses, i.e. artificial substitutes or replacements for parts of the body; Appliances for connecting them with the body; Devices providing patency to, or preventing collapsing of, tubular structures of the body, e.g. stents
    • A61F2/02—Prostheses implantable into the body
    • A61F2/30—Joints
    • A61F2/3094—Designing or manufacturing processes
    • A61F2/30942—Designing or manufacturing processes for designing or making customized prostheses, e.g. using templates, CT or NMR scans, finite-element analysis or CAD-CAM techniques
    • A—HUMAN NECESSITIES
    • A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
    • A61F—FILTERS IMPLANTABLE INTO BLOOD VESSELS; PROSTHESES; DEVICES PROVIDING PATENCY TO, OR PREVENTING COLLAPSING OF, TUBULAR STRUCTURES OF THE BODY, e.g. STENTS; ORTHOPAEDIC, NURSING OR CONTRACEPTIVE DEVICES; FOMENTATION; TREATMENT OR PROTECTION OF EYES OR EARS; BANDAGES, DRESSINGS OR ABSORBENT PADS; FIRST-AID KITS
    • A61F2/00—Filters implantable into blood vessels; Prostheses, i.e. artificial substitutes or replacements for parts of the body; Appliances for connecting them with the body; Devices providing patency to, or preventing collapsing of, tubular structures of the body, e.g. stents
    • A61F2/02—Prostheses implantable into the body
    • A61F2/30—Joints
    • A61F2/46—Special tools or methods for implanting or extracting artificial joints, accessories, bone grafts or substitutes, or particular adaptations therefor
    • A61F2/4603—Special tools or methods for implanting or extracting artificial joints, accessories, bone grafts or substitutes, or particular adaptations therefor for insertion or extraction of endoprosthetic joints or of accessories thereof
    • A—HUMAN NECESSITIES
    • A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
    • A61F—FILTERS IMPLANTABLE INTO BLOOD VESSELS; PROSTHESES; DEVICES PROVIDING PATENCY TO, OR PREVENTING COLLAPSING OF, TUBULAR STRUCTURES OF THE BODY, e.g. STENTS; ORTHOPAEDIC, NURSING OR CONTRACEPTIVE DEVICES; FOMENTATION; TREATMENT OR PROTECTION OF EYES OR EARS; BANDAGES, DRESSINGS OR ABSORBENT PADS; FIRST-AID KITS
    • A61F2/00—Filters implantable into blood vessels; Prostheses, i.e. artificial substitutes or replacements for parts of the body; Appliances for connecting them with the body; Devices providing patency to, or preventing collapsing of, tubular structures of the body, e.g. stents
    • A61F2/02—Prostheses implantable into the body
    • A61F2/30—Joints
    • A61F2/3094—Designing or manufacturing processes
    • A61F2/30942—Designing or manufacturing processes for designing or making customized prostheses, e.g. using templates, CT or NMR scans, finite-element analysis or CAD-CAM techniques
    • A61F2002/30948—Designing or manufacturing processes for designing or making customized prostheses, e.g. using templates, CT or NMR scans, finite-element analysis or CAD-CAM techniques using computerized tomography, i.e. CT scans
    • A—HUMAN NECESSITIES
    • A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
    • A61F—FILTERS IMPLANTABLE INTO BLOOD VESSELS; PROSTHESES; DEVICES PROVIDING PATENCY TO, OR PREVENTING COLLAPSING OF, TUBULAR STRUCTURES OF THE BODY, e.g. STENTS; ORTHOPAEDIC, NURSING OR CONTRACEPTIVE DEVICES; FOMENTATION; TREATMENT OR PROTECTION OF EYES OR EARS; BANDAGES, DRESSINGS OR ABSORBENT PADS; FIRST-AID KITS
    • A61F2/00—Filters implantable into blood vessels; Prostheses, i.e. artificial substitutes or replacements for parts of the body; Appliances for connecting them with the body; Devices providing patency to, or preventing collapsing of, tubular structures of the body, e.g. stents
    • A61F2/02—Prostheses implantable into the body
    • A61F2/30—Joints
    • A61F2/30988—Other joints not covered by any of the groups A61F2/32 - A61F2/4425
    • A61F2/3099—Other joints not covered by any of the groups A61F2/32 - A61F2/4425 for temporo-mandibular [TM, TMJ] joints
    • A61F2002/30993—Temporal components
    • A—HUMAN NECESSITIES
    • A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
    • A61F—FILTERS IMPLANTABLE INTO BLOOD VESSELS; PROSTHESES; DEVICES PROVIDING PATENCY TO, OR PREVENTING COLLAPSING OF, TUBULAR STRUCTURES OF THE BODY, e.g. STENTS; ORTHOPAEDIC, NURSING OR CONTRACEPTIVE DEVICES; FOMENTATION; TREATMENT OR PROTECTION OF EYES OR EARS; BANDAGES, DRESSINGS OR ABSORBENT PADS; FIRST-AID KITS
    • A61F2/00—Filters implantable into blood vessels; Prostheses, i.e. artificial substitutes or replacements for parts of the body; Appliances for connecting them with the body; Devices providing patency to, or preventing collapsing of, tubular structures of the body, e.g. stents
    • A61F2/02—Prostheses implantable into the body
    • A61F2/30—Joints
    • A61F2/46—Special tools or methods for implanting or extracting artificial joints, accessories, bone grafts or substitutes, or particular adaptations therefor
    • A61F2/4603—Special tools or methods for implanting or extracting artificial joints, accessories, bone grafts or substitutes, or particular adaptations therefor for insertion or extraction of endoprosthetic joints or of accessories thereof
    • A61F2002/4616—Special tools or methods for implanting or extracting artificial joints, accessories, bone grafts or substitutes, or particular adaptations therefor for insertion or extraction of endoprosthetic joints or of accessories thereof of temporo-mandibular joints
    • A—HUMAN NECESSITIES
    • A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
    • A61F—FILTERS IMPLANTABLE INTO BLOOD VESSELS; PROSTHESES; DEVICES PROVIDING PATENCY TO, OR PREVENTING COLLAPSING OF, TUBULAR STRUCTURES OF THE BODY, e.g. STENTS; ORTHOPAEDIC, NURSING OR CONTRACEPTIVE DEVICES; FOMENTATION; TREATMENT OR PROTECTION OF EYES OR EARS; BANDAGES, DRESSINGS OR ABSORBENT PADS; FIRST-AID KITS
    • A61F2/00—Filters implantable into blood vessels; Prostheses, i.e. artificial substitutes or replacements for parts of the body; Appliances for connecting them with the body; Devices providing patency to, or preventing collapsing of, tubular structures of the body, e.g. stents
    • A61F2/02—Prostheses implantable into the body
    • A61F2/30—Joints
    • A61F2/46—Special tools or methods for implanting or extracting artificial joints, accessories, bone grafts or substitutes, or particular adaptations therefor
    • A61F2/4603—Special tools or methods for implanting or extracting artificial joints, accessories, bone grafts or substitutes, or particular adaptations therefor for insertion or extraction of endoprosthetic joints or of accessories thereof
    • A61F2002/4629—Special tools or methods for implanting or extracting artificial joints, accessories, bone grafts or substitutes, or particular adaptations therefor for insertion or extraction of endoprosthetic joints or of accessories thereof connected to the endoprosthesis or implant via a threaded connection
    • A—HUMAN NECESSITIES
    • A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
    • A61F—FILTERS IMPLANTABLE INTO BLOOD VESSELS; PROSTHESES; DEVICES PROVIDING PATENCY TO, OR PREVENTING COLLAPSING OF, TUBULAR STRUCTURES OF THE BODY, e.g. STENTS; ORTHOPAEDIC, NURSING OR CONTRACEPTIVE DEVICES; FOMENTATION; TREATMENT OR PROTECTION OF EYES OR EARS; BANDAGES, DRESSINGS OR ABSORBENT PADS; FIRST-AID KITS
    • A61F2/00—Filters implantable into blood vessels; Prostheses, i.e. artificial substitutes or replacements for parts of the body; Appliances for connecting them with the body; Devices providing patency to, or preventing collapsing of, tubular structures of the body, e.g. stents
    • A61F2/02—Prostheses implantable into the body
    • A61F2/30—Joints
    • A61F2/46—Special tools or methods for implanting or extracting artificial joints, accessories, bone grafts or substitutes, or particular adaptations therefor
    • A61F2002/4687—Mechanical guides for implantation instruments

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  • Health & Medical Sciences (AREA)
  • Life Sciences & Earth Sciences (AREA)
  • Orthopedic Medicine & Surgery (AREA)
  • Engineering & Computer Science (AREA)
  • Animal Behavior & Ethology (AREA)
  • Veterinary Medicine (AREA)
  • Oral & Maxillofacial Surgery (AREA)
  • Biomedical Technology (AREA)
  • Heart & Thoracic Surgery (AREA)
  • General Health & Medical Sciences (AREA)
  • Public Health (AREA)
  • Transplantation (AREA)
  • Vascular Medicine (AREA)
  • Surgery (AREA)
  • Cardiology (AREA)
  • Medical Informatics (AREA)
  • Dentistry (AREA)
  • Molecular Biology (AREA)
  • Nuclear Medicine, Radiotherapy & Molecular Imaging (AREA)
  • Physical Education & Sports Medicine (AREA)
  • Physics & Mathematics (AREA)
  • Geometry (AREA)
  • Manufacturing & Machinery (AREA)
  • Plastic & Reconstructive Surgery (AREA)
  • Prostheses (AREA)
  • Surgical Instruments (AREA)

Abstract

The invention relates to the technical field of medical equipment and discloses an artificial temporomandibular joint preparation device which comprises a fibula osteotomy guide plate, a mandibular osteotomy guide plate and a bone fracture plate, wherein the fibula osteotomy guide plate comprises a transverse cutting plate and a longitudinal cutting plate which are connected with each other and used for cutting a autologous fibula, the mandibular osteotomy guide plate comprises a transverse cutting plate and used for cutting a mandible of a patient, and the bone fracture plate comprises a bone fracture plate body and used for connecting the autologous fibula and the mandible. Compared with the prior art, the artificial temporomandibular joint preparation device can be used for preparing the personalized condylar implant with the autologous fibula, wherein the fibula is the autologous fibula of a patient, and has good biocompatibility and better healing effect. The fibula elastic modulus is smaller than that of metal, the elastic deformation capability is stronger, the stress born by the titanium plate is smaller when the fibula elastic modulus is subjected to larger external impact, and the stability of the internal fixation system is good.

Description

Artificial temporomandibular joint preparation device
Technical Field
The invention relates to the technical field of medical equipment, in particular to an artificial temporomandibular joint preparation device.
Background
The temporomandibular joint is composed of a mandibular head, temporomandibular fossa and joint nodules, and in clinical technology, the artificial temporomandibular joint is one of the important modes of temporomandibular joint reconstruction, and is mainly applicable to temporomandibular joint dysplasia and the like caused by temporomandibular joint rigidity, incapacitating and fixing condyloid fracture, temporomandibular joint tumor, advanced intra-articular disorder, congenital craniofacial syndromes and the like.
Although the traditional artificial temporomandibular joint is mature in the market at present, certain problems still exist, specifically, the artificial mandibular head is made of wear-resistant and corrosion-resistant materials, and is different from the mandibular handle materials, so that the artificial temporomandibular joint and the mandibular handle are often combined in structural design or manufacturing process, the manufacturing precision requirement is high, and the processing cost is high; the elasticity modulus of the mandible is much smaller than that of a metal material used for an artificial temporomandibular joint, and a metal implant with overlarge volume is fixed on the mandible for a long time, so that stress shielding can be caused to peripheral bones, the growth and development of the bones are affected, and osteoporosis and a series of complications are caused; clinically, for simple fracture of mandibular head, only a complete set of artificial temporomandibular joint can be used for replacement, so that the treatment cost of patients is increased intangibly; the artificial temporomandibular joint replacement surgery is complex in process, a great deal of time is spent on mandibular handle positioning, a great deal of drilling and fixing bone screws, and the surgery efficiency is low.
Disclosure of Invention
In order to solve the technical problems, the invention aims to provide an artificial temporomandibular joint preparation device which has the advantages of ingenious structural design, good use effect and the like.
Based on this, the present invention provides an artificial temporal joint preparation device comprising:
the fibula osteotomy guide plate comprises a transverse cutting plate and a longitudinal cutting plate, wherein the transverse cutting plate and the longitudinal cutting plate are connected through a first connecting strip, straight cutting grooves are formed in two ends of the transverse cutting plate, a V-shaped cutting groove is formed in the middle of the transverse cutting plate, an L-shaped cutting groove is formed in the middle of the longitudinal cutting plate, and a first positioning hole is formed in the transverse cutting plate;
The mandible bone cutting guide plate comprises a straight cutting plate, a T-shaped cutting groove is formed in the middle of the straight cutting plate, a rectangular cutting plate is arranged in the T-shaped cutting groove, the rectangular cutting plate is connected with the straight cutting plate through a second connecting strip, and a second positioning hole is formed in the straight cutting plate;
The bone fracture plate is used for connecting fibula and mandible and comprises a bone fracture plate body, a plurality of bone fracture nail holes are formed in the bone fracture plate body, and bone fracture screws are arranged in the bone fracture nail holes in a penetrating mode.
In some embodiments of the present application, a first temporary limiting hole is provided on a transverse cutting plate of the fibula osteotomy guiding plate.
In some embodiments of the present application, a second temporary limiting hole is provided on the straight cutting plate of the mandibular osteotomy guiding plate.
In some embodiments of the application, the bone screw holes include cancellous bone short screw holes, cortical bone short screw holes, and cortical bone long screw holes.
In some embodiments of the application, the bone screws comprise cancellous bone staples, cortical bone staples, and cortical bone spikes.
In some embodiments of the application, the bone plate is made of pure titanium metal.
The embodiment of the invention provides an artificial temporomandibular joint preparation device, which has the beneficial effects that compared with the prior art:
the invention provides a preparation device for an artificial pinch joint, which comprises a fibula osteotomy guide plate, a mandibular osteotomy guide plate and a bone fracture plate. Before use, measuring the required parts of the autologous fibula of a patient, taking out the fibula in the shape of the condyle by a fibula osteotomy guide plate, performing corresponding polishing, drilling and other treatments, assembling with a bone plate, and fixing part of bone screw; during operation, the bone of the affected part of a patient is cut by utilizing the mandibular bone cutting guide plate, the fibular implant assembled before operation is in butt joint with the corresponding cut groove, and the rest bone screw is fixed, so that the implantation operation of the fibular implant can be completed. Therefore, most of drilling holes, bone screw fixation and assembly of bone plates can be completed before operation, so that the operation time can be greatly shortened; when the operation is finished, the fibula is embedded in the groove of the mandible, which is beneficial to improving the structural mechanical property of the internal fixation system and can greatly relieve the shearing force of the bone screw; the autologous fibula is adopted to replace a metal prosthesis on the market, so that the compatibility is better, the bone combination is facilitated, and the subsequent bone and bone healing is more stable; the elastic modulus of the autologous fibula is smaller than that of metal, the elastic deformation capability is stronger, the stress born by the titanium plate is smaller when the titanium plate is impacted by larger outside, and the stability of the internal fixation system is better.
Drawings
FIG. 1 is a schematic illustration of the assembly of an artificial temporal joint according to an embodiment of the present invention;
FIG. 2 is a second schematic view of the assembly of an artificial temporal joint according to an embodiment of the present invention;
FIG. 3 is a schematic view of a fibula osteotomy guide plate according to an embodiment of the present invention;
FIG. 4 is a second schematic view of a fibula osteotomy guide plate according to an embodiment of the invention;
FIG. 5 is a schematic view showing a structure of a mandibular osteotomy guide plate according to an embodiment of the present invention;
fig. 6 is a schematic view of a bone plate according to an embodiment of the present invention.
In the figure, 1, mandible; 11. rectangular grooves; 2. fibula; 21. rectangular cross section; 3. fibula osteotomy guide plate; 31. a transverse cutting plate; 311. a straight cut groove; 312. v-shaped cutting grooves; 313. a first positioning hole; 314. a first temporary limiting hole; 32. cutting the plate longitudinally; 321. an L-shaped cutting groove; 33. a first connecting bar; 4. a mandibular osteotomy guide plate; 41. a straight cutting plate; 411. t-shaped cutting grooves; 412. a second positioning hole; 413. a second temporary limiting hole; 42. a rectangular cutting plate; 43. a second connecting bar; 5. a bone plate; 51. a bone plate body; 52. cancellous bone short screw holes; 53. cortical bone short screw holes; 54. cortical bone long screw holes; 55. an embedded rod; 56. connecting the nail holes; 6. bone screw; 61. cortical bone spikes; 62. cancellous bone staples; 63. cortical bone staples.
Detailed Description
The following describes in further detail the embodiments of the present invention with reference to the drawings and examples. The following examples are illustrative of the invention and are not intended to limit the scope of the invention.
It should be understood that the terms "front", "rear", etc. are used in the present invention to describe various information, but the information should not be limited to these terms, which are only used to distinguish the same type of information from each other. For example, "front" information may also be referred to as "rear" information, and "rear" information may also be referred to as "front" information, without departing from the scope of the invention.
As shown in fig. 1 to 6, an embodiment of the present invention provides an artificial temporal joint preparation apparatus, which includes a fibula osteotomy guide plate 3, a mandibular osteotomy guide plate 4, a bone plate 5 and bone screws 6, specifically, the fibula osteotomy guide plate 3 includes a transverse cutting plate 31 and a longitudinal cutting plate 32, the transverse cutting plate 31 and the longitudinal cutting plate 32 are connected by a first connecting strip 33, two ends of the transverse cutting plate 31 are provided with straight cutting grooves 311, a V-shaped cutting groove 312 is provided in the middle of the transverse cutting plate 31, an L-shaped cutting groove 321 is provided in the middle of the longitudinal cutting plate 32, and a first positioning hole 313 and a first temporary limiting hole 314 are provided on the transverse cutting plate 31; the mandible osteotomy guide plate 4 comprises a straight cutting plate 41, a T-shaped cutting slot 411 is arranged in the middle of the straight cutting plate 41, a rectangular cutting plate 42 is arranged in the T-shaped cutting slot 411, the straight cutting plate 41 is connected with the rectangular cutting plate 42 through a second connecting strip 43, and a second positioning hole 412 and a second temporary limiting hole 413 are also arranged on the straight cutting plate 41; the bone plate 5 is used for connecting a fibula 2 and a mandible 1 and comprises a bone plate body 51, a plurality of bone screw holes are formed in the bone plate body 51, and bone screws 6 are all arranged in the bone screw holes in a penetrating mode.
Based on the structure, before using a designer to measure the mandible 1 and the fibula 2 of a patient, after acquiring corresponding data, carrying out image preprocessing and preliminary modeling on CT and DICOM data by means of MINICS, then leading the processed model into 3-matic for personalized design of a guide plate and an implant, preparing a fibula cut-off guide plate 3, a mandible cut-off guide plate 4 and a bone plate 5 by a 3D printing technology, confirming a patient autologous fibula cut-off position, fixing the fibula cut-off guide plate 3 at a designated position of the fibula 2, inserting a Kirschner needle into a first temporary limiting hole 314 to realize temporary fixing of the fibula cut-off guide plate 3, then cutting out a condyloid fibula 2 shaped like a condyloid by utilizing a straight cut-off groove 311 and a V-shaped cut-off groove 321 of the longitudinal guide plate on the transverse guide plate 3, drilling and polishing by utilizing a 3D model data pair, guaranteeing no corner angle of the polished condyloid fibula 2, polishing a condyloid fibula 2 non-fibula rectangular fibula cut-off guide plate 4 and a bone plate 5, and simultaneously, and connecting the condyloid 2 to a first fibula cut-off guide plate 5 with a first connecting hole 313 to a bone connecting hole 5; simultaneously, the mandibular bone cutting guide plate 4 is fixed at the appointed position of the mandible 1, a Kirschner wire is inserted into the second temporary limiting hole 413 to achieve temporary fixation of the mandibular bone cutting guide plate 4, the diseased bone of a patient is cut out through the T-shaped cutting groove 411, then a rectangular groove 11 matched with the rectangular section 21 of the condyloid fibula 2 is cut out at the mandibular branch position through the rectangular cutting plate, the size of the rectangular groove 11 is consistent with that of the rectangular section 21 of the condyloid fibula 2, the rectangular section 21 of the condyloid fibula 2 implant is aligned and placed into the rectangular groove 11, the mandible 1 is drilled through the second positioning hole 412 to enable the mandible 1 to produce a second connecting hole for connecting the bone fracture plate 5, the close fit state of the fibula 2 and the mandible 1 is maintained, the bone fracture plate 5 and the mandible 1 are fixed through the bone fracture screw 6, and further the fixed connection of the fibula 2 and the mandible 1 is achieved.
Alternatively, for the present application, the bone plate 5 is made of pure titanium, the bone plate 5 includes a bone plate body 51 and an embedded rod 55, the bone plate body 51 is provided with a plurality of rings, the center of the rings is provided with bone screw holes for fixing bone screws, the embedded rod 55 is a cylindrical rod body, the embedded rod 55 is inserted between the fibula 2 and the mandible 1, two connecting screw holes 56 matched with the bone screw holes on the bone plate body 51 are arranged on the embedded rod 55, and the connecting screw holes 56 of the embedded rod 55 are coaxial with part of the bone screw holes of the bone plate body 51 respectively. Specifically, the bone screw holes on the bone plate body 51 include a cancellous bone short screw hole 52, a cortical bone short screw hole 53 and a cortical bone long screw hole 54, wherein the cortical bone long screw hole 54 is coaxially arranged with the connecting screw hole 56 of the inlay rod 55, and correspondingly, the bone screw 6 includes a cancellous bone short screw 62, a cortical bone short screw 63 and a cortical bone long screw 61, the cancellous bone short screw 62 is inserted into the cancellous bone short screw hole 52, the cortical bone short screw 63 is inserted into the cortical bone short screw hole 53, and the cortical bone long screw 61 is inserted into the cortical bone long screw hole 54 and the connecting screw hole 56 of the inlay rod 55, thereby realizing the fixed connection of the bone plate body 51, the inlay rod 55, the condyloid fibula 2 and the mandible 1, thereby realizing the fixed connection of the condyloid fibula 2 and the mandible 1. Therefore, most of drilling holes, fixing bone screws 6 and assembling bone plates 5 can be completed before operation, so that the operation time can be greatly shortened; when the operation is finished, the fibula 2 is embedded in the groove of the mandible 1, which is beneficial to improving the structural mechanical property of the internal fixation system and greatly relieving the shearing force of the bone screw 6; the autologous fibula is adopted to replace a metal prosthesis on the market, so that the compatibility is better, the bone combination is facilitated, and the subsequent bone and bone healing is more stable; the elastic modulus of the autologous fibula is smaller than that of metal, the elastic deformation capability is stronger, the stress born by the titanium plate is smaller when the titanium plate is impacted by larger outside, and the stability of the internal fixation system is better.
In summary, the present invention provides an artificial temporal-mandibular joint preparation apparatus, which includes a fibula osteotomy guide plate, a mandibular osteotomy guide plate, and a bone plate, wherein the fibula osteotomy guide plate includes a transverse cutting plate and a longitudinal cutting plate that are connected to each other, for cutting an autologous fibula, the mandibular osteotomy guide plate includes a transverse cutting plate for cutting a mandible of a patient, and the bone plate includes a bone plate body for connecting the autologous fibula and the mandible. Compared with the prior art, the artificial temporomandibular joint preparation device can be used for preparing the personalized condylar implant with the autologous fibula, wherein the fibula is the autologous fibula of a patient, and has good biocompatibility and better healing effect. The fibula elastic modulus is smaller than that of metal, the elastic deformation capability is stronger, the stress born by the titanium plate is smaller when the fibula elastic modulus is subjected to larger external impact, and the stability of the internal fixation system is good.
The foregoing is merely a preferred embodiment of the present invention, and it should be noted that modifications and substitutions can be made by those skilled in the art without departing from the technical principles of the present invention, and these modifications and substitutions should also be considered as being within the scope of the present invention.

Claims (3)

1. An artificial temporal joint preparation device, comprising:
The fibula osteotomy guide plate comprises a transverse cutting plate and a longitudinal cutting plate, wherein the transverse cutting plate and the longitudinal cutting plate are connected through a first connecting strip, straight cutting grooves are formed in two ends of the transverse cutting plate, a V-shaped cutting groove is formed in the middle of the transverse cutting plate, an L-shaped cutting groove is formed in the middle of the longitudinal cutting plate, and a first positioning hole and a first temporary limiting hole are formed in the transverse cutting plate;
The mandible bone cutting guide plate comprises a straight cutting plate, a T-shaped cutting groove is formed in the middle of the straight cutting plate, a rectangular cutting plate is arranged in the T-shaped cutting groove, the rectangular cutting plate is connected with the straight cutting plate through a second connecting strip, and a second positioning hole and a second temporary limiting hole are formed in the straight cutting plate;
The bone fracture plate is used for connecting fibula and mandible and comprises a bone fracture plate body, a plurality of bone fracture nail holes are formed in the bone fracture plate body, bone fracture screws are arranged in the bone fracture nail holes in a penetrating mode, and the bone fracture plate is made of pure titanium metal.
2. The artificial temporal joint preparation device of claim 1, wherein the bone screw holes comprise cancellous bone short screw holes, cortical bone short screw holes, and cortical bone long screw holes.
3. The artificial temporal joint preparation device of claim 2, wherein the bone screws comprise cancellous bone staples, cortical bone staples, and cortical bone spikes.
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