CN117137692A - Vertebral plate bone grafting plate - Google Patents
Vertebral plate bone grafting plate Download PDFInfo
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- CN117137692A CN117137692A CN202311120557.4A CN202311120557A CN117137692A CN 117137692 A CN117137692 A CN 117137692A CN 202311120557 A CN202311120557 A CN 202311120557A CN 117137692 A CN117137692 A CN 117137692A
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- lamina
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- 210000000988 bone and bone Anatomy 0.000 title claims abstract description 84
- 239000004696 Poly ether ether ketone Substances 0.000 claims abstract description 14
- 229920002530 polyetherether ketone Polymers 0.000 claims abstract description 14
- JUPQTSLXMOCDHR-UHFFFAOYSA-N benzene-1,4-diol;bis(4-fluorophenyl)methanone Chemical compound OC1=CC=C(O)C=C1.C1=CC(F)=CC=C1C(=O)C1=CC=C(F)C=C1 JUPQTSLXMOCDHR-UHFFFAOYSA-N 0.000 claims abstract description 13
- 229910001069 Ti alloy Inorganic materials 0.000 claims description 4
- 239000007787 solid Substances 0.000 claims description 3
- 238000010030 laminating Methods 0.000 claims description 2
- 230000002980 postoperative effect Effects 0.000 abstract description 8
- 239000000463 material Substances 0.000 abstract description 5
- 208000010392 Bone Fractures Diseases 0.000 abstract description 4
- 206010017076 Fracture Diseases 0.000 abstract description 4
- 210000002421 cell wall Anatomy 0.000 description 14
- 230000013011 mating Effects 0.000 description 9
- RTAQQCXQSZGOHL-UHFFFAOYSA-N Titanium Chemical compound [Ti] RTAQQCXQSZGOHL-UHFFFAOYSA-N 0.000 description 4
- 230000035876 healing Effects 0.000 description 4
- 238000000034 method Methods 0.000 description 4
- 239000010936 titanium Substances 0.000 description 4
- 229910052719 titanium Inorganic materials 0.000 description 4
- 238000011084 recovery Methods 0.000 description 3
- 230000002349 favourable effect Effects 0.000 description 2
- 239000007943 implant Substances 0.000 description 2
- 206010007269 Carcinogenicity Diseases 0.000 description 1
- 206010020751 Hypersensitivity Diseases 0.000 description 1
- 208000031481 Pathologic Constriction Diseases 0.000 description 1
- 235000008331 Pinus X rigitaeda Nutrition 0.000 description 1
- 235000011613 Pinus brutia Nutrition 0.000 description 1
- 241000018646 Pinus brutia Species 0.000 description 1
- 208000026935 allergic disease Diseases 0.000 description 1
- 230000007815 allergy Effects 0.000 description 1
- 230000004323 axial length Effects 0.000 description 1
- 230000009286 beneficial effect Effects 0.000 description 1
- 230000008468 bone growth Effects 0.000 description 1
- 230000007670 carcinogenicity Effects 0.000 description 1
- 231100000260 carcinogenicity Toxicity 0.000 description 1
- 230000007547 defect Effects 0.000 description 1
- 230000000694 effects Effects 0.000 description 1
- 229920006351 engineering plastic Polymers 0.000 description 1
- 238000009434 installation Methods 0.000 description 1
- 229910052751 metal Inorganic materials 0.000 description 1
- 239000002184 metal Substances 0.000 description 1
- 210000003205 muscle Anatomy 0.000 description 1
- 230000007886 mutagenicity Effects 0.000 description 1
- 231100000299 mutagenicity Toxicity 0.000 description 1
- 231100001083 no cytotoxicity Toxicity 0.000 description 1
- 230000000399 orthopedic effect Effects 0.000 description 1
- 206010033675 panniculitis Diseases 0.000 description 1
- 239000011120 plywood Substances 0.000 description 1
- 239000002861 polymer material Substances 0.000 description 1
- 230000002787 reinforcement Effects 0.000 description 1
- 230000003014 reinforcing effect Effects 0.000 description 1
- 238000000926 separation method Methods 0.000 description 1
- 210000003491 skin Anatomy 0.000 description 1
- 230000006641 stabilisation Effects 0.000 description 1
- 238000011105 stabilization Methods 0.000 description 1
- 230000036262 stenosis Effects 0.000 description 1
- 208000037804 stenosis Diseases 0.000 description 1
- 210000004304 subcutaneous tissue Anatomy 0.000 description 1
Classifications
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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
- A61F2/44—Joints for the spine, e.g. vertebrae, spinal discs
-
- 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
Landscapes
- Health & Medical Sciences (AREA)
- Orthopedic Medicine & Surgery (AREA)
- Engineering & Computer Science (AREA)
- Biomedical Technology (AREA)
- Heart & Thoracic Surgery (AREA)
- Cardiology (AREA)
- Oral & Maxillofacial Surgery (AREA)
- Transplantation (AREA)
- Vascular Medicine (AREA)
- Life Sciences & Earth Sciences (AREA)
- Animal Behavior & Ethology (AREA)
- General Health & Medical Sciences (AREA)
- Public Health (AREA)
- Veterinary Medicine (AREA)
- Neurology (AREA)
- Prostheses (AREA)
Abstract
The application relates to the field of implantable medical devices, and particularly discloses a vertebral lamina bone grafting plate. The vertebral plate bone grafting plate comprises a vertebral plate fixing plate, a connecting plate and a side block fixing plate which are sequentially connected, wherein the connecting plate is connected with an artificial bone block, V-shaped grooves are formed in two sides of the artificial bone block, the inner wall of each V-shaped groove is divided into a first groove wall and a second groove wall, the first groove wall is arranged on one side, close to the connecting plate, of the second groove wall, the included angle between the first groove wall and the connecting plate is 65-72 degrees, and the included angle between the first groove wall and the second groove wall is 140-145 degrees. Through the setting of V type groove, with the cooperation of lamina section, can improve the cooperation stability. The bone grafting plate is mainly made of PEEK material, has light weight, good biocompatibility and visibility, has elastic modulus close to human bones, and can reduce postoperative fracture caused by elastic modulus difference.
Description
Technical Field
The application relates to the field of implantable medical devices, in particular to a vertebral lamina bone grafting plate.
Background
The cervical vertebra operation has two access ways, one is a front access way and the other is a rear access way. When treating cervical spine stenosis, a posterior approach is often adopted to cut the skin, subcutaneous tissue and muscle in the middle of the back of the neck to reach the spinous process and lamina of the cervical spine. Laminoplasty is a surgical method for reconstructing the lamina to enlarge the spinal canal and reduce the spinal pressure.
In laminoplasty procedures, the stabilization of the resected lamina is required with the lamina bone plate. In the related art, the lamina bone grafting plate comprises a lamina fixing plate made of titanium alloy, a connecting plate and a side block fixing plate, wherein the connecting plate is connected between the lamina fixing plate and the side block fixing plate, the connecting plate is connected with an artificial bone block for being inserted into a lamina incision, the lamina fixing plate is fixedly connected with the lamina through a screw, and the side block fixing plate is connected with the side block through a screw.
The above-mentioned vertebral lamina bone grafting plate has the following technical defects: the contact area between the artificial bone block and the cross section of the vertebral plate is small, the cooperation is unstable, and the postoperative recovery is not facilitated.
Disclosure of Invention
In order to improve the stability of the cooperation of the artificial bone block and the vertebral plate, the application provides the vertebral plate bone grafting plate.
The application provides a vertebral plate bone grafting plate which adopts the following technical scheme:
the utility model provides a vertebral plate bone grafting board, includes the vertebral plate fixed plate, connecting plate and the side piece fixed plate that link to each other in proper order, the connecting plate is connected with artifical bone piece, artifical bone piece both sides are provided with V type groove, the inner wall in V type groove divide into first cell wall and second cell wall, first cell wall sets up in one side that the second cell wall is close to the connecting plate, the contained angle of first cell wall and connecting plate is 65-72 degrees, the contained angle of first cell wall and second cell wall is 140-145 degrees.
By adopting the technical scheme, the V-shaped groove is matched with the cross section of the vertebral plate, so that the stability can be improved. Wherein, the inclination of first cell wall and second cell wall is through the tight calculation, and preferred contained angle scope can further improve artifical bone piece and vertebral lamina complex stability, is favorable to postoperative healing to resume.
Optionally, the vertebral plate fixing plate, the connecting plate and the side block fixing plate are made of PEEK.
By adopting the technical scheme, PEEK, namely polyether-ether-ketone, is a special engineering plastic with excellent performances of high temperature resistance, easy processing, high mechanical strength and the like. The vertebral plate bone grafting plate adopts PEEK material, has following advantage: 1. the elastic modulus is close to the human skeleton, so that the postoperative fracture caused by the difference of the elastic modulus can be reduced; 2. PEEK has X-ray penetrability and good visibility, can help doctors to adjust the position of an implant in the operation process, easily tracks the healing process after the operation, and effectively monitors bone growth and healing; 3. the PEEK has good biocompatibility with human body, has no cytotoxicity, mutagenicity and carcinogenicity, does not cause allergy, and is suitable for being used as an orthopedic implant material; 4. PEEK has a density less than titanium metal and can reduce the mass of the bone grafting plate.
Optionally, the thickness of the vertebral plate fixing plate and the lateral mass fixing plate is 1.1-1.5mm.
By adopting the technical scheme, the whole thickness of the bone grafting plate is properly increased, so that the mechanical strength equivalent to that of the traditional pure titanium bone grafting plate can be achieved, and the clinical application is satisfied.
Optionally, the artificial bone block and the connecting plate are integrally formed, and the artificial bone block is of a solid structure.
Through adopting above-mentioned technical scheme, compare in artifical bone piece through the mode of screw fixation, artifical bone piece and connecting plate integrated into one piece are favorable to improving its stability more, can not appear the pine and take off the problem.
Optionally, the vertebral plate fixing plate comprises a vertebral plate outer plate and a vertebral plate inner plate, and the lateral mass fixing plate comprises a lateral mass outer plate and a lateral mass inner plate;
the artificial bone block comprises side plates, a bottom plate and a matching plate, wherein the two side plates are respectively connected to two opposite sides of the connecting plate, the V-shaped groove is formed in the matching plate, the matching plate is respectively connected with the inner plate of the vertebral plate and the inner plate of the side block, the bottom plate is connected between one ends, far away from the connecting plate, of the two matching plates, and the side plates are attached to the bottom plate and the matching plate;
the vertebral plate outer plate, the connecting plate, the side block outer plate and the side plate are integrally formed, and the vertebral plate inner plate, the matching plate, the bottom plate and the side block inner plate are integrally formed.
By adopting the technical scheme, the bone grafting plate is formed by assembling two parts, so that the artificial bone block is arranged in a hollow mode, the overall weight is further reduced, the load of cervical vertebra is reduced, and the postoperative recovery is facilitated.
Optionally, a first supporting rod and a second supporting rod are connected between the two side plates, the first supporting rod is abutted to the inner side of the first groove wall, and the second supporting rod is abutted to the inner side of the second groove wall.
By adopting the technical scheme, the first support rod and the second support rod support and reinforce the two side plates, so that the structural strength of the artificial bone block is improved; secondly, the first support rod and the second support rod support and reinforce the matched plate, maintain the shape of the matched plate, make the matched plate difficult to bend and shape, and further improve the matching stability of the artificial bone block and the vertebral plate; thirdly, the vertebral lamina planking, the connecting plate, side piece planking and curb plate are as first part, the vertebral lamina inner panel, join in marriage plywood, bottom plate and side piece and are as the second part, when two parts are assembled, the second bracing piece struts the junction of first cell wall and second cell wall earlier, until after the second bracing piece butt in the second cell wall, the cooperation board resumes deformation for the junction card of first cell wall and second cell wall goes into first bracing piece and second bracing piece, and then improves the connection compactness between first part and the second part both, thereby makes first part and second part be difficult to the separation.
Optionally, the first support rod and the second support rod are made of titanium alloy, and the side plate is provided with a first support groove for inserting the first support rod and a second support groove for inserting the second support rod;
the bottom plate all is connected with the cardboard towards one side both ends of connecting plate, the curb plate is connected with the draw-in groove that supplies the draw-in lever card to go into, one side that the draw-in lever was kept away from the curb plate is connected with the limiting plate, the limiting plate laminating is in one side that the cardboard deviates from the curb plate.
Through adopting above-mentioned technical scheme, the structural strength of first bracing piece and second bracing piece is high, supports and consolidates effectually. In addition, after the clamping rod is inserted into the clamping plate, the limiting plate limits the position of the clamping rod, and then the two side plates are tightened to the side edges of the matched plate and the bottom plate, so that the first support rod and the second support rod are not easy to separate from the side plates on one hand, and the side plate edges are tightly attached to the matched plate and the bottom plate on the other hand, and gaps cannot occur.
Optionally, the lamina inner plate and the lateral mass inner plate are both connected with inserting rods, the lamina outer plate and the lateral mass outer plate are both provided with inserting holes, and the inserting rods are in interference fit with the inserting holes.
By adopting the technical scheme, the connection tightness between the two parts is further improved, so that the two parts are not easy to separate.
Optionally, the lamina fixation plate is provided with lamina fixation holes, and the lateral mass fixation plate is provided with lateral mass fixation holes.
By adopting the technical scheme, the vertebral plate fixing plate and the lateral block fixing plate are conveniently fixed.
Optionally, the included angle between the vertebral plate fixing plate and the connecting plate is 130-140 degrees, and the vertebral plate fixing plate and the lateral mass fixing plate are arranged in parallel.
By adopting the technical scheme, the direction angle of the vertebral plate and the lateral block is matched, and the reinforcement effect is good.
In summary, the application has the following beneficial effects:
1. v-shaped grooves are formed in two sides of the artificial bone block and are matched with the cross section of the vertebral plate, so that the matching stability can be improved;
2. the bone grafting plate is mainly made of PEEK material, has light weight, good biocompatibility and visibility, has elastic modulus close to human bones, and can reduce postoperative fracture caused by elastic modulus difference;
3. the artificial bone block and the connecting plate are integrally formed, and the overall thickness of the bone grafting plate is slightly increased on the basis, so that the mechanical strength of the bone grafting plate can be achieved, and the clinical use is satisfied.
Drawings
FIG. 1 is a schematic view of a laminboard of embodiment 1 of the present application;
FIG. 2 is a schematic front view of a lamina bone plate of example 1 of the present application;
FIG. 3 is a schematic top view of a lamina bone plate of example 1 of the present application;
FIG. 4 is a schematic cross-sectional view taken along line A-A of FIG. 3;
FIG. 5 is a schematic view showing the structure of a laminboard in accordance with embodiment 2 of the present application;
FIG. 6 is an exploded view of a lamina bone plate of example 2 of the present application;
FIG. 7 is a schematic top view of a lamina bone plate of example 2 of the present application;
FIG. 8 is a schematic cross-sectional view of FIG. 7 taken along line B-B;
fig. 9 is a schematic structural view of a side plate of embodiment 2 of the present application.
Reference numerals illustrate: 1. a lamina fixation plate; 11. a lamina outer plate; 12. a lamina inner plate; 101. a lamina fixation hole; 2. a connecting plate; 3. a side block fixing plate; 31. a side block outer plate; 32. a side block inner plate; 301. a side block fixing hole; 4. artificial bone blocks; 41. a side plate; 411. a first support groove; 412. a second support groove; 42. a bottom plate; 43. matching plates; 44. a first support bar; 45. a second support bar; 46. a clamping plate; 461. a clamping groove; 47. a clamping rod; 48. a limiting plate; 5. a V-shaped groove; 51. a first groove wall; 52. a second groove wall; 6. a rod; 7. and a jack.
Detailed Description
The application is described in further detail below with reference to fig. 1-9.
The embodiment of the application discloses a vertebral plate bone grafting plate.
Example 1:
referring to fig. 1, the vertebral plate bone grafting plate comprises a vertebral plate fixing plate 1, a connecting plate 2 and a side block fixing plate 3 which are sequentially connected, wherein an artificial bone block 4 is fixedly connected to one side of the connecting plate 2. The vertebral plate fixing plate 1 is used for fixing with the vertebral plate, the lateral block fixing plate 3 is used for fixing with the lateral block, and the artificial bone block 4 is used for inserting into the vertebral plate incision. The vertebral plate fixing plate 1, the connecting plate 2, the side block fixing plate 3 and the artificial bone block 4 are integrally formed and made of PEEK, so that the bone grafting plate has good biocompatibility and visibility, and the weight of the bone grafting plate is remarkably reduced compared with that of a pure titanium bone grafting plate. In addition, PEEK is used as an implanted high polymer material, the elastic modulus is close to that of human bones, and postoperative fracture caused by the difference of the elastic moduli can be reduced.
Referring to fig. 1 and 2, the lamina fixation plate 1 is provided with two lamina fixation holes 101 through which screws pass, and the lateral mass fixation plate 3 is provided with two lateral mass fixation holes 301 through which screws pass, and both the lamina fixation holes 101 and the lateral mass fixation holes 301 are countersunk. The included angle between the vertebral plate fixing plate 1 and the connecting plate 2 is 130-140 degrees, and in the embodiment of the application, the included angle is preferably 135 degrees. The vertebral plate fixing plate 1 is arranged parallel to the lateral mass fixing plate 3. The thickness of the vertebral plate fixing plate 1 and the lateral mass fixing plate 3 is 1.1-1.5mm, and the preferred thickness is 1.4mm in the embodiment of the application. The thickness of the vertebral plate fixing plate 1 and the lateral mass fixing plate 3 is increased compared with that of the traditional pure titanium bone grafting plate, so that the mechanical strength is improved, and the clinical application is satisfied.
Referring to fig. 3 and 4, the artificial bone block 4 is of a solid structure, V-shaped grooves 5 are formed in two sides, close to or far away from the vertebral plate fixing plate 1, of the artificial bone block 4, and the V-shaped grooves 5 are matched with the cross section of the vertebral plate, so that stability can be improved.
Referring to fig. 2, the inner wall of the v-shaped groove 5 is divided into a first groove wall 51 and a second groove wall 52, the first groove wall 51 and the second groove wall 52 are disposed adjacently, and the first groove wall 51 is located at a side of the second groove wall 52 close to the connection plate 2. The angle between the first groove wall 51 and the connecting plate 2 is 65-72 degrees, preferably 70 degrees in the embodiment of the application. The angle between the first slot wall 51 and the second slot wall 52 is 140-145 degrees, preferably 143 degrees in the embodiment of the present application. The inclination angle of the groove wall of the V-shaped groove 5 is optimized, so that the stability of the cooperation of the artificial bone block 4 and the vertebral plate can be further improved, and the postoperative healing recovery is facilitated.
The implementation principle is as follows:
the artificial bone block 4 is placed in the vertebral plate incision, and then the screw is screwed, so that the vertebral plate fixing plate 1 is fixed with the vertebral plate, the side block fixing plate 3 is fixed with the side block, and the installation of the bone grafting plate is completed.
Example 2:
referring to fig. 5, the laminoplasty plate includes a lamina fixation plate 1, a connecting plate 2, a lateral mass fixation plate 3, and an artificial bone mass 4. The vertebral plate fixing plate 1 is used for fixing with the vertebral plate, the lateral block fixing plate 3 is used for fixing with the lateral block, and the artificial bone block 4 is used for inserting into the vertebral plate incision. The vertebral plate fixing plate 1 is provided with two vertebral plate fixing holes 101 for screws to pass through, the lateral block fixing plate 3 is provided with two lateral block fixing holes 301 for screws to pass through, and the vertebral plate fixing holes 101 and the lateral block fixing holes 301 are countersunk holes.
Referring to fig. 5 and 6, the lamina fixation plate 1 includes a lamina outer plate 11 and a lamina inner plate 12 that are bonded to each other, and the lateral mass fixation plate 3 includes a lateral mass outer plate 31 and a lateral mass inner plate 32 that are bonded to each other. The side that the lamina inner panel 12 is close to lamina planking 11 and the side that the side piece inner panel 32 is close to side piece planking 31 all fixedly connected with a plurality of inserted bars 6, lamina planking 11 and side piece planking 31 all run through be provided with a plurality of jack 7 with inserted bar 6 one-to-one, inserted bar 6 and jack 7 interference fit.
Referring to fig. 5 and 6, the artificial bone block 4 includes two side plates 41, a bottom plate 42, and two mating plates 43. The vertebral plate outer plate 11 and the lateral block outer plate 31 are respectively connected to two opposite sides of the connecting plate 2, the two side plates 41 are respectively connected to two other sides of the connecting plate 2, and the vertebral plate outer plate 11, the connecting plate 2, the lateral block outer plate 31 and the side plates 41 are integrally formed and made of PEEK.
Referring to fig. 5 and 6, two mating plates 43 are respectively connected to opposite sides of the lamina inner plate 12 and the lateral mass inner plate 32, and a bottom plate 42 is connected between one ends of the two mating plates 43 away from the connecting plate 2, where the lamina inner plate 12, the mating plates 43, the bottom plate 42 and the lateral mass inner plate 32 are integrally formed and made of PEEK material.
Referring to fig. 5 and 6, the outer edges of the side plates 41 abut against the side edges of the bottom plate 42 and the mating plates 43, and the side plates 41 are located between the two mating plates 43, so that the abutment of the side plates 41 with the bottom plate 42 and the mating plates 43 is seamless. The artificial bone block 4 consisting of the side plate 41, the matching plate 43 and the bottom plate 42 forms a hollow bin body structure, thereby further greatly reducing the overall mass.
Referring to fig. 6, two mating plates 43 are recessed toward each other to form a V-shaped groove 5, the inner wall of the V-shaped groove 5 is divided into a first groove wall 51 and a second groove wall 52, the first groove wall 51 and the second groove wall 52 are disposed adjacently, and the first groove wall 51 is located at one side of the second groove wall 52 close to the connecting plate 2.
Referring to fig. 7 and 8, a first support rod 44 and a second support rod 45 are inserted between the two side plates 41, the first support rod 44 is provided with two and is respectively abutted against the inner sides of the two first groove walls 51, and the second support rod 45 is provided with two and is respectively abutted against the inner sides of the two second groove walls 52. The first support bar 44 and the second support bar 45 can improve the overall structural strength of the artificial bone block 4, and improve the connection tightness of the side plate 41 and the mating plate 43.
Referring to fig. 8 and 9, the first support bar 44 and the second support bar 45 are made of titanium alloy, and the side plate 41 is provided with a first support slot 411 into which an end of the first support bar 44 is inserted and a second support slot 412 into which an end of the second support bar 45 is inserted. When assembled, the two side plates 41 may be slightly spread apart so that both ends of the first support bar 44 are inserted into the first support slot 411 and both ends of the second support bar 45 are inserted into the second support slot 412.
Referring to fig. 6 and 9, the bottom plate 42 is fixedly connected with a clamping plate 46 at both ends of one side facing the connecting plate 2, and the clamping plate 46 abuts against one side of the two side plates 41. The inboard fixedly connected with two clamping bars 47 of curb plate 41, clamping bar 47 are located the one end that curb plate 41 kept away from connecting plate 2, and one side that cardboard 46 is close to connecting plate 2 is provided with two draw-in grooves 461, and draw-in groove 461 supplies corresponding clamping bar 47 to insert. The cross section of the clamping rod 47 is circular, and the width of the opening of the clamping groove 461 is smaller than the diameter of the clamping rod 47, so that the clamping rod 47 is not easy to separate after being inserted into the clamping groove 461. When assembled, the locking lever 47 is fully inserted into the locking groove 461 when the side plate 41 abuts against the bottom plate 42.
Referring to fig. 6 and 9, the axial length of the clamping rod 47 is equal to the thickness of the clamping plate 46, a limiting plate 48 is fixedly connected to one side, away from the side plate 41, of the clamping rod 47, the limiting plate 48 is attached to one side, away from the side plate 41, of the clamping plate 46, and the cross section of the limiting plate 48 is circular and the diameter of the limiting plate is larger than that of the clamping rod 47. After the clamping rods 47 are inserted into the clamping plates 46, the limiting plates 48 limit the positions of the clamping rods 47, so that the two side plates 41 are tightened on the side edges of the matching plate 43 and the bottom plate 42, and the overall structural strength of the artificial bone block 4 is improved.
The principle of the operation in example 2 is the same as that in example 1, and the main difference is the hollow configuration of the artificial bone pieces 4. Based on this, embodiment 2 sets the lamina fixation plate 1, the lateral mass fixation plate 3, and the artificial bone mass 4 separately, and adds a reinforcing structure.
The above embodiments are not intended to limit the scope of the present application, so: all equivalent changes in structure, shape and principle of the application should be covered in the scope of protection of the application.
Claims (10)
1. The utility model provides a vertebral plate bone grafting board, includes vertebral plate fixed plate (1), connecting plate (2) and side piece fixed plate (3) that link to each other in proper order, connecting plate (2) are connected with artifical bone piece (4), its characterized in that: the artificial bone block is characterized in that V-shaped grooves (5) are formed in two sides of the artificial bone block (4), the inner wall of each V-shaped groove (5) is divided into a first groove wall (51) and a second groove wall (52), the first groove wall (51) is arranged on one side, close to the connecting plate (2), of the second groove wall (52), an included angle between the first groove wall (51) and the connecting plate (2) is 65-72 degrees, and an included angle between the first groove wall (51) and the second groove wall (52) is 140-145 degrees.
2. The lamina bone plate of claim 1 wherein: the vertebral plate fixing plate (1), the connecting plate (2) and the side block fixing plate (3) are made of PEEK.
3. The lamina bone plate of claim 2 wherein: the thickness of the vertebral plate fixing plate (1) and the lateral mass fixing plate (3) is 1.1-1.5mm.
4. The lamina bone plate of claim 2 wherein: the artificial bone block (4) and the connecting plate (2) are integrally formed, and the artificial bone block (4) is of a solid structure.
5. The lamina bone plate of claim 2 wherein: the vertebral plate fixing plate (1) comprises a vertebral plate outer plate (11) and a vertebral plate inner plate (12), and the lateral mass fixing plate (3) comprises a lateral mass outer plate (31) and a lateral mass inner plate (32);
the artificial bone block (4) comprises side plates (41), a bottom plate (42) and a matching plate (43), wherein the side plates (41) are provided with two matching plates (42) and are respectively connected to two opposite sides of the connecting plate (2), the V-shaped groove (5) is formed in the matching plate (43), the matching plate (43) is provided with two matching plates and is respectively connected with the vertebral lamina inner plate (12) and the lateral block inner plate (32), the bottom plate (42) is connected between one ends, far away from the connecting plate (2), of the two matching plates (43), and the side plates (41) are attached to the bottom plate (42) and the matching plate (43);
the vertebral plate outer plate (11), the connecting plate (2), the lateral block outer plate (31) and the lateral plate (41) are integrally formed, and the vertebral plate inner plate (12), the matching plate (43), the bottom plate (42) and the lateral block inner plate (32) are integrally formed.
6. The lamina bone plate of claim 5 wherein: a first supporting rod (44) and a second supporting rod (45) are connected between the two side plates (41), the first supporting rod (44) is abutted to the inner side of the first groove wall (51), and the second supporting rod (45) is abutted to the inner side of the second groove wall (52).
7. The lamina bone plate of claim 6 wherein: the first support rod (44) and the second support rod (45) are made of titanium alloy, and the side plate (41) is provided with a first support groove (411) for inserting the first support rod (44) and a second support groove (412) for inserting the second support rod (45);
bottom plate (42) all are connected with cardboard (46) towards one side both ends of connecting plate (2), curb plate (41) are connected with draw-in lever (47), cardboard (46) are provided with draw-in groove (461) that supply draw-in lever (47) card to go into, one side that curb plate (41) were kept away from to draw-in lever (47) is connected with limiting plate (48), limiting plate (48) laminating is in one side that cardboard (46) deviate from curb plate (41).
8. The lamina bone plate of claim 5 wherein: the novel vertebral plate is characterized in that the vertebral plate inner plate (12) and the side block inner plate (32) are both connected with the inserting rod (6), the vertebral plate outer plate (11) and the side block outer plate (31) are both provided with the inserting holes (7), and the inserting rod (6) is in interference fit with the inserting holes (7).
9. The lamina bone plate of claim 1 wherein: the vertebral plate fixing plate (1) is provided with a vertebral plate fixing hole (101), and the lateral block fixing plate (3) is provided with a lateral block fixing hole (301).
10. The lamina bone plate of claim 1 wherein: the included angle between the vertebral plate fixing plate (1) and the connecting plate (2) is 130-140 degrees, and the vertebral plate fixing plate (1) and the lateral block fixing plate (3) are arranged in parallel.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
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| US20030050700A1 (en) * | 2001-09-11 | 2003-03-13 | Asahi Kogaku Kogyo Kabushiki Kaisha | Vertebral arch spacer |
| CN101584601A (en) * | 2009-06-11 | 2009-11-25 | 陈哲 | Bone fracture plate formed by a vertebral plate |
| CN202365903U (en) * | 2011-12-14 | 2012-08-08 | 吴德升 | Cervical spinal canal forming bridge |
| CN108606830A (en) * | 2016-12-12 | 2018-10-02 | 创生医疗器械（中国）有限公司 | A kind of posterior cervical laminoplasty system |
| US20200138487A1 (en) * | 2011-09-01 | 2020-05-07 | Globus Medical, Inc. | Laminoplasty plates, systems, and devices, and methods relating to the same |
| CN215458529U (en) * | 2021-06-25 | 2022-01-11 | 西南医科大学附属中医医院 | Bone grafting plate for posterior approach of vertebral plate |
| CN215458528U (en) * | 2021-06-25 | 2022-01-11 | 西南医科大学附属中医医院 | A backup pad for repairing cervical vertebra way of escape single-door vertebral plate breach |
| CN217960268U (en) * | 2022-07-01 | 2022-12-06 | 上海斯潘威生物技术有限公司 | Vertebral plate fixing plate easy to fix |
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2023
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| Publication number | Priority date | Publication date | Assignee | Title |
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| US20030050700A1 (en) * | 2001-09-11 | 2003-03-13 | Asahi Kogaku Kogyo Kabushiki Kaisha | Vertebral arch spacer |
| CN101584601A (en) * | 2009-06-11 | 2009-11-25 | 陈哲 | Bone fracture plate formed by a vertebral plate |
| US20200138487A1 (en) * | 2011-09-01 | 2020-05-07 | Globus Medical, Inc. | Laminoplasty plates, systems, and devices, and methods relating to the same |
| CN202365903U (en) * | 2011-12-14 | 2012-08-08 | 吴德升 | Cervical spinal canal forming bridge |
| CN108606830A (en) * | 2016-12-12 | 2018-10-02 | 创生医疗器械（中国）有限公司 | A kind of posterior cervical laminoplasty system |
| CN215458529U (en) * | 2021-06-25 | 2022-01-11 | 西南医科大学附属中医医院 | Bone grafting plate for posterior approach of vertebral plate |
| CN215458528U (en) * | 2021-06-25 | 2022-01-11 | 西南医科大学附属中医医院 | A backup pad for repairing cervical vertebra way of escape single-door vertebral plate breach |
| CN217960268U (en) * | 2022-07-01 | 2022-12-06 | 上海斯潘威生物技术有限公司 | Vertebral plate fixing plate easy to fix |
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| CN117137692B (en) | 2024-04-26 |
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