CN110025410A - Fixed device is merged in embedded anterior cervical vertebrae pressurization - Google Patents
Fixed device is merged in embedded anterior cervical vertebrae pressurization Download PDFInfo
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- CN110025410A CN110025410A CN201910390888.7A CN201910390888A CN110025410A CN 110025410 A CN110025410 A CN 110025410A CN 201910390888 A CN201910390888 A CN 201910390888A CN 110025410 A CN110025410 A CN 110025410A
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- 210000000988 bone and bone Anatomy 0.000 claims abstract description 129
- 230000004927 fusion Effects 0.000 claims abstract description 41
- 238000013461 design Methods 0.000 claims description 11
- 239000003292 glue Substances 0.000 claims description 3
- 239000000155 melt Substances 0.000 claims 2
- 238000001356 surgical procedure Methods 0.000 abstract description 2
- 238000010586 diagram Methods 0.000 description 23
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- 208000037265 diseases, disorders, signs and symptoms Diseases 0.000 description 4
- 238000012986 modification Methods 0.000 description 4
- 230000004048 modification Effects 0.000 description 4
- 206010028570 Myelopathy Diseases 0.000 description 3
- 206010041591 Spinal osteoarthritis Diseases 0.000 description 2
- 208000027418 Wounds and injury Diseases 0.000 description 2
- 208000036319 cervical spondylosis Diseases 0.000 description 2
- 230000006378 damage Effects 0.000 description 2
- 206010025482 malaise Diseases 0.000 description 2
- 238000004519 manufacturing process Methods 0.000 description 2
- 239000000463 material Substances 0.000 description 2
- 238000000034 method Methods 0.000 description 2
- 210000005036 nerve Anatomy 0.000 description 2
- 210000000278 spinal cord Anatomy 0.000 description 2
- 208000005801 spondylosis Diseases 0.000 description 2
- 208000024891 symptom Diseases 0.000 description 2
- 238000010146 3D printing Methods 0.000 description 1
- 208000032170 Congenital Abnormalities Diseases 0.000 description 1
- 206010061619 Deformity Diseases 0.000 description 1
- 208000037408 Device failure Diseases 0.000 description 1
- 206010015769 Extradural haematoma Diseases 0.000 description 1
- 206010021143 Hypoxia Diseases 0.000 description 1
- 206010061218 Inflammation Diseases 0.000 description 1
- 206010028980 Neoplasm Diseases 0.000 description 1
- 206010058522 Oesophageal injury Diseases 0.000 description 1
- 206010052428 Wound Diseases 0.000 description 1
- 230000015572 biosynthetic process Effects 0.000 description 1
- 210000004204 blood vessel Anatomy 0.000 description 1
- 230000006837 decompression Effects 0.000 description 1
- 238000006073 displacement reaction Methods 0.000 description 1
- 230000000694 effects Effects 0.000 description 1
- 230000002708 enhancing effect Effects 0.000 description 1
- 206010020718 hyperplasia Diseases 0.000 description 1
- 238000002513 implantation Methods 0.000 description 1
- 238000001727 in vivo Methods 0.000 description 1
- 230000004054 inflammatory process Effects 0.000 description 1
- 208000014674 injury Diseases 0.000 description 1
- 238000003780 insertion Methods 0.000 description 1
- 230000037431 insertion Effects 0.000 description 1
- 230000002427 irreversible effect Effects 0.000 description 1
- 238000009940 knitting Methods 0.000 description 1
- 230000003902 lesion Effects 0.000 description 1
- 238000002844 melting Methods 0.000 description 1
- 230000008018 melting Effects 0.000 description 1
- 208000015122 neurodegenerative disease Diseases 0.000 description 1
- 210000002569 neuron Anatomy 0.000 description 1
- 230000008506 pathogenesis Effects 0.000 description 1
- 231100000915 pathological change Toxicity 0.000 description 1
- 230000036285 pathological change Effects 0.000 description 1
- 230000003716 rejuvenation Effects 0.000 description 1
- 230000029058 respiratory gaseous exchange Effects 0.000 description 1
- 239000007787 solid Substances 0.000 description 1
- 208000020431 spinal cord injury Diseases 0.000 description 1
- 210000000273 spinal nerve root Anatomy 0.000 description 1
- 238000010561 standard procedure Methods 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
- A61F2/30721—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
- A61F2/44—Joints for the spine, e.g. vertebrae, spinal discs
- A61F2/4455—Joints for the spine, e.g. vertebrae, spinal discs for the fusion of spinal bodies, e.g. intervertebral fusion of adjacent spinal bodies, e.g. fusion cages
-
- 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
- A61F2002/30001—Additional features of subject-matter classified in A61F2/28, A61F2/30 and subgroups thereof
- A61F2002/30316—The prosthesis having different structural features at different locations within the same prosthesis; Connections between prosthetic parts; Special structural features of bone or joint prostheses not otherwise provided for
- A61F2002/30329—Connections or couplings between prosthetic parts, e.g. between modular parts; Connecting elements
- A61F2002/30426—Bayonet coupling
-
- 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
- A61F2002/30001—Additional features of subject-matter classified in A61F2/28, A61F2/30 and subgroups thereof
- A61F2002/30316—The prosthesis having different structural features at different locations within the same prosthesis; Connections between prosthetic parts; Special structural features of bone or joint prostheses not otherwise provided for
- A61F2002/30329—Connections or couplings between prosthetic parts, e.g. between modular parts; Connecting elements
- A61F2002/30433—Connections or couplings between prosthetic parts, e.g. between modular parts; Connecting elements using additional screws, bolts, dowels, rivets or washers e.g. connecting screws
-
- 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
- A61F2/30767—Special external or bone-contacting surface, e.g. coating for improving bone ingrowth
- A61F2/30771—Special external or bone-contacting surface, e.g. coating for improving bone ingrowth applied in original prostheses, e.g. holes or grooves
- A61F2002/30818—Special external or bone-contacting surface, e.g. coating for improving bone ingrowth applied in original prostheses, e.g. holes or grooves castellated or crenellated
Landscapes
- Health & Medical Sciences (AREA)
- Engineering & Computer Science (AREA)
- Biomedical Technology (AREA)
- Orthopedic Medicine & Surgery (AREA)
- Vascular Medicine (AREA)
- Transplantation (AREA)
- Oral & Maxillofacial Surgery (AREA)
- Heart & Thoracic Surgery (AREA)
- Cardiology (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 present invention relates to bone surgery medical instruments fields, and in particular to fixed device is merged in embedded anterior cervical vertebrae pressurization；Fixing screws and centrum bone plate；For the centrum bone plate axially consistent axial ends is each provided at least one salient angle with backbone, the back side of centrum bone plate salient angle is equipped with the bulge-structure of embeddable centrum；The screw hole of similar round is provided in salient angle, the screw hole inner face is equipped with internal screw thread；The screw hole of the similar round, top curvature are greater than low side curvature；The screw hole is equipped with intilted screw hole inclined-plane back to one end of cervical bone；The centrum bone plate is fixed on cervical bone by the fixing screws by the screw hole；It can reduce centrum bone plate incisura, pressurize between realization cone, increase centrum bone plate stability, and effectively improve intervertebral fusion rate.
Description
Technical field
The present invention relates to bone surgery medical instruments fields, and in particular to the embedded fixed dress of anterior cervical vertebrae pressurization fusion
It sets.
Background technique
In recent years, anterior cervical operation is in more and more clinical application applications, in treatment cervical vertebra degenerative disease, outside
Wound, tumour, inflammation and deformity etc. obtain significant curative effect.But anterior cervical operation difficulty is larger, and is prone to simultaneously
Send out disease.Currently, the common complication of the anterior cervical operation through reporting includes spinal cord injury, neurotrosis, injury of blood vessel, breathing
Road damage, esophageal injury, leakage of cerebrospinal, epidural hematoma formation and Internal implant failure etc..
Cervical spondylotic myelopathy and nerve root cervical vertebra sickness are the common disease of mid-aged population, frequently-occurring disease, with life style
Change, disease incidence also improves year by year, and shows the trend of rejuvenation.The pathogenesis of cervical spondylosis is that cervical intervertebral disk moves back
The spinal cord and nerve root in spur compressing cervical spinal canal are formed to rear prominent or centrum rear osteoproliferation after change, due to spinal cord group
Nerve cell in knitting is very fragile, and it is irreversible to oppress the loss of nervous function caused by the pathological changes such as caused hypoxic-ischemic
Turn.Therefore it answers Operation in early stage to release compressing cervical spondylotic myelopathy, the root cervical spondylosis of serious symptom should also be adopted
Take positive operative treatment.Anterior cervical decompression bone graft fusion (abbreviation ACDF) is current clinical treatment cervical spondylotic myelopathy
With the standard procedures method of nerve root cervical vertebra sickness.Its principle be cut off through cervical vertebra interverbebral disc outstanding, hyperplasia spur,
The centrum of even entire narrow segment, after excision causes laminated structure, implantation support bone block or intervertebral between the upper-lower segment of lesion
Fusion, to maintain the height and Axial symptoms of intervertebral.
Summary of the invention
It pressurizes the purpose of the present invention is to provide embedded anterior cervical vertebrae and merges fixed device, can reduce centrum bone plate and cut
Mark is realized and is pressurizeed between cone, increases centrum bone plate stability, and effectively improve intervertebral fusion rate.
In order to solve the above technical problems, the invention adopts the following technical scheme:
Fixed device is merged in embedded anterior cervical vertebrae pressurization, and the fixed device includes: fixing screws and centrum bone plate；The vertebra
Body bone plate is axially consistent axial ends is each provided at least one salient angle with backbone, the centrum bone plate and centrum contact surface
For the back side, non-contact face is front, and the back side of the centrum bone plate salient angle is equipped with the bulge-structure of embeddable centrum.It is set in salient angle
It is equipped with the screw hole of similar round, the axial direction and centrum bone plate principal plane of the screw hole are in multidirectional single angle design, the screw
Hole inner face is equipped with internal screw thread；The screw hole of the similar round, top curvature is greater than low side curvature, and (screw hole top is far from vertebra
One end of body bone plate, low side are close to one end of centrum bone plate)；The screw hole is equipped with lean-in back to one end of cervical bone
Oblique screw hole inclined-plane；The centrum bone plate is fixed on cervical bone by the fixing screws by the screw hole；It is fixed
Screw includes fixed rivet nut and the fixed head of a nail；The fixed head of a nail is equipped in face of one end of screw hole to match with screw hole inclined-plane
Head of a nail inclined-plane.
Further, the thickness of the salient angle is no more than 3.5mm；The periphery of the bulge-structure of the embeddable centrum of salient angle is
Salient angle skirt border structure, skirt thickness are no more than 1.5mm.
Further, the vertebral bone plate face is equipped with the intervertebral fusion body of column figure to the one side of skeleton；The vertebra
Between between fusion and the centrum bone plate be detachably connected or integrated design by way of connect.
Further, vertebral bone plate face is to (i.e. the back side is lateral in the middle part of the bulge-structure of the embeddable centrum of one angle of convexity of centrum
Between) it is horizontally arranged with intervertebral fusion body link slot, the intervertebral fusion body link slot is equipped with the first connecting hole, the intervertebral
The second connecting hole is offered in fusion；In the middle part of the intervertebral fusion body and centrum bone plate, pass through attachment screw or connection buckle
It achieves a fixed connection through the first connecting hole and the second connecting hole；When screw connects, the first connecting hole and the second connecting hole are circular hole；
The attachment screw is divided into rivet nut and the head of a nail, and the rivet nut is equipped with external screw thread and the connected circular hole internal screw thread of the fusion is matched
It closes, the connecting hole of the head of a nail and centrum bone plate cooperates, and the head of a nail top is equipped with blossom type socket；When connection buckle connects,
First connecting hole and the second connecting hole are square hole, and the connection buckle is hollow square body, and there are protrusion and centrum bone plate side in one end
The cooperation of shape connecting hole, the other end have grab and fusion square hole to cooperate.
Further, the intervertebral fusion body face upward hypocentrum bone end face be equipped with annular knurl face or the flank of tooth.
Further, the axial direction of the salient angle screw hole is as needed with centrum bone plate principal plane in multidirectional single angle design.
Further, the salient angle screw hole is equipped with single line or two-wire internal screw thread；The screw hole internal screw thread be straight thread or
Taper thread.
Further, the rivet nut of the fixing screws is equipped with merging external screw thread, and the head of a nail is equipped with and salient angle fixing screw hole
The locking external screw thread that internal screw thread matches；The externally threaded screw pitch of merging is greater than or equal to the externally threaded screw pitch of locking,
Head of a nail locking external screw thread is straight thread or taper thread, single thread or double thread, and with the centrum bone plate salient angle
The internal screw thread of fixing screw hole match.
Further, tapered excessive sliding surface is equipped between the rivet nut and the head of a nail.
Further, the hollow inner face of the connection buckle is equipped with the internal screw thread that cooperates with jackscrew, the jackscrew for equipped with institute
It states and buckles the cylindrical body that hollow internal screw thread matches.
Compared with prior art, the present invention one of at least has the advantages that:
1. the present invention is provided with bulge-structure, when in use, upper or preceding lower edge drops out bone slot for corresponding vertebral bone before centrum
In vivo, wherein intervertebral fusion body is placed in intervertebral space, the bulge-structure of centrum bone plate salient angle for plate and the merging of intervertebral fusion body joint
It is embedded in vertebral bone slot, salient angle skirt border structure is covered on the edge of bone slot, which can reduce bone plate by way of illustration and cut
Mark increases bone plate stability.
2. centrum bone plate salient angle fixing screw hole is the design of similar round structure, the fixing screws head of a nail is taper design, fixed
The intermediate location of the screw head of a nail and rivet nut is cone of light slide designs, when fixing screws are screwed into nail hole, taper smooth surface and cone
Shape screw thread squeezes the entrance side wall of similar round screw hole, shifts the related centrum of fixing screws to direction between centrum, when solid up and down
It when determining screw while being screwed into, squeezes hypocentrum between centrum simultaneously, and forms intervertebral pressurization, in addition, being twisted in fixing screws
Fashionable, the head of a nail squeezes centrum bone plate salient angle to bone slot the extruding of nail hole, to increase being bonded for centrum bone plate salient angle and bone slot
Property.Meanwhile fixing screws are when being screwed into, it is mobile to centrum by the screw pitch official post vertebral bone plate of rivet nut screw thread and head of a nail screw thread, into
One step promotes the bulge-structure of salient angle and the stickiness and stability of skirt border structure and bone slot and conical surface.
Detailed description of the invention
Fig. 1 is the split type screw connecting structure schematic diagram of H-type；
Fig. 2 is H-type Separated type buckle attachment structure schematic diagram；
Fig. 3 is H-type integral connecting structure schematic diagram；
Fig. 4 is the split type screw connecting structure schematic diagram of M type；
Fig. 5 is M type Separated type buckle attachment structure schematic diagram；
Fig. 6 is M type integral connecting structure schematic diagram；
Fig. 7 is the split type screw connecting structure schematic diagram of triangular form；
Fig. 8 is triangular form Separated type buckle attachment structure schematic diagram；
Fig. 9 is triangular form integral connecting structure schematic diagram；
Figure 10 is the split type screw connecting structure schematic diagram of I type；
Figure 11 is I type Separated type buckle attachment structure schematic diagram；
Figure 12 is I type integral connecting structure schematic diagram；
Figure 13 is round connecting hole fusion structural schematic diagram；
Figure 14 is square attaching apertures fusion structural schematic diagram；
Figure 15 is attachment screw structural schematic diagram；
Figure 16 is connection buckle structural schematic diagram；
Figure 17 is connection buckle jackscrew structural schematic diagram；
Figure 18 is that screw is screwed into the mosaic texture generated in vertebra and displacement squeezes schematic diagram；
Figure 19 is bone slot structure schematic diagram；
Figure 20 is that the split type screw of H-type connects usage state diagram；
Figure 21 is square attaching apertures bone plate front and structure schematic diagram；
Figure 22 is round connecting hole bone plate structure schematic diagram；
Figure 23 is fixing screws structural schematic diagram.
In figure, 1- centrum bone plate, 101- salient angle, 102- bulge-structure, 103- screw hole, 104- salient angle skirt border structure,
105- internal screw thread, 106- intervertebral fusion body link slot, 107, the first connecting hole of 108-, 2- intervertebral fusion body, 201,202- second
The fixed rivet nut of connecting hole, 3- fixing screws, 301-, the fixed head of a nail of 302-, 4- attachment screw, 401- rivet nut, the 402- head of a nail, 5- connect
Connect buckle jackscrew, 6- connection buckle, 7- bone slot.
Specific embodiment
As shown in Fig. 1-2 3, in order to make the objectives, technical solutions, and advantages of the present invention clearer, below in conjunction with attached
Figure and embodiment, the present invention will be described in further detail.It should be appreciated that specific embodiment described herein is only used to
It explains the present invention, is not intended to limit the present invention.
Embodiment 1
Fixed device is merged in embedded anterior cervical vertebrae pressurization, and the fixed device includes: fixing screws 3 and centrum bone plate 1；It is described
Centrum bone plate 1 is axially consistent axial ends is each provided at least one salient angle 101,1 salient angle of centrum bone plate with backbone
The embeddable anterior margin of vertebral body of bulge-structure in bulge-structure 102 of the one side towards centrum bone equipped with embeddable centrum, use
In matched bone slot 7, to reduce bone plate incisura, increase the fixed stability of bone plate.
The screw hole 103 of similar round is provided in salient angle, axial direction and 1 principal plane of centrum bone plate of the screw hole 103 are in
Multidirectional list angle design, the inner face of the screw hole 103 are equipped with internal screw thread 105；Its top of the screw hole 103 of the similar round is bent
Rate is greater than low side curvature (screw hole top is one end far from bone plate, and low side is close to one end of bone plate)；The screw hole 103
Intilted screw hole inclined-plane is equipped with back to one end of cervical bone；The fixing screws pass through the screw hole 103 for institute
Centrum bone plate 1 is stated to be fixed on cervical bone.Fixing screws include fixed rivet nut 301 and the fixed head of a nail 302；The fixed head of a nail
It is equipped with the head of a nail inclined-plane to match with screw hole inclined-plane in face of one end of screw hole, as shown in figure 18, when fixing screws are screwed into nail
Kong Shi, head of a nail inclined-plane and tapered thread squeeze the entrance side wall of similar round screw hole, make the related centrum of fixing screws to centrum
Between direction shift, when upper and lower fixing screws are screwed into simultaneously, squeeze hypocentrum between centrum simultaneously, and form intervertebral and add
Pressure, in addition, the head of a nail squeezes bone plate salient angle to bone slot the extruding of nail hole, when fixing screws are screwed into increase bone plate salient angle
With the stickiness of bone slot.Meanwhile fixing screws are when being screwed into, by the screw pitch official post bone plate of rivet nut screw thread and head of a nail screw thread to centrum
It is mobile, further promote the bulge-structure of salient angle and the stickiness and stability of skirt border structure and bone slot and conical surface.
Embodiment 2
On the basis of embodiment 1, the thickness of the salient angle 101 is no more than 3.5mm；The protrusion knot of the embeddable centrum of salient angle
The periphery of structure is salient angle skirt border structure 104, and 104 thickness of skirt is no more than 1.5mm, when in use, the bulge-structure of salient angle
In 102 insertion vertebral bone slots 7, salient angle skirt border structure 104 is covered on the outer rim of vertebral bone slot 7, realizes that undercut mark is fixed, actually makes
It is no more than 1.5mm with bone plate incisura.
Embodiment 3
On the basis of embodiment 1, the centrum bone plate 1 is equipped with the intervertebral fusion body of column figure towards the one side of skeleton
2；Between the intervertebral fusion body 2 and the centrum bone plate 1 be detachably connected or integrated design by way of connect, and
Centrum bone plate 1 can be the shape of the needs such as M type, H-type, I type or triangle, and integral type connection can use identical material body
Centrum bone plate 1 and intervertebral fusion body 2 are prepared, and can be by 3D printing, production cost is lower；Split type screw connection or card
For the centrum bone plate 1 and intervertebral fusion body 2 for detaining connection in production, material can be different, and applicability is stronger.
Embodiment 4
On the basis of embodiment 3, in the middle part of the bulge-structure of embeddable centrum of the centrum bone plate 1 towards one angle of convexity of centrum (i.e.
Between the transverse direction of the back side) it is horizontally arranged with intervertebral fusion body link slot 106, the centrum bone plate 1 is the back side with centrum contact surface, non-
Contact surface is front；The intervertebral fusion body link slot is equipped with the first connecting hole 107,108, opens on the intervertebral fusion body 2
Equipped with the second connecting hole 201,202；The intervertebral fusion body 2 and centrum bone plate 1 are by attachment screw 4 or connection buckle 6 through the
One connecting hole 107,108 and second connects 201,202 holes and achieves a fixed connection.When being connected using attachment screw, the first connecting hole
107 and second connecting hole 201 be circular hole, the attachment screw 4 divides for rivet nut 401 and the head of a nail 402, and the rivet nut 401 is equipped with outer
The connecting hole 107 of the screw-internal thread fit of the connected circular hole 201 of screw thread and the fusion, the head of a nail 402 and bone plate cooperates, institute
402 top of the head of a nail is stated equipped with blossom type socket；When being connected using connection buckle, the first connecting hole 108 and the second connecting hole 202 are
Square hole, the connection buckle 6 are hollow square body, and one end has protrusion to cooperate with bone plate square attaching apertures 108, and the other end has grab
Cooperate with fusion square hole 202.The attachment screw 4 and connection buckle 6 can connect the bone plate and the fusion when use
It is connected in one.
Embodiment 5
On the basis of embodiment 3, intervertebral fusion body 2 face upward hypocentrum bone end face be equipped with annular knurl face or the flank of tooth, energy
Enough enhancing frictional force and raising fusion rate.
Embodiment 6
On the basis of embodiment 1, the axial direction of the screw hole 103 is set with bone plate principal plane in multidirectional single angle as needed
Meter, angle can design different angles as needed, and the fixing screws 3 are locked with the nail-plate that bone plate salient angle 101 is constituted to be connected
Connect the crushing strength for being capable of increasing fixing screws 3 Yu screw hole 103.
Embodiment 7
On the basis of embodiment 1, the screw hole 103 is equipped with single line or two-wire internal screw thread；103 internal screw thread of screw hole is
Straight thread or taper thread select engagement thread as needed, increase practicability.
Embodiment 8
On the basis of embodiment 1, the rivet nut 301 of the fixing screws 3 be equipped with merging external screw thread, the head of a nail 302 be equipped with it is convex
The locking external screw thread that the internal screw thread 105 of angle fixing screw hole 103 matches；The externally threaded screw pitch of merging is greater than or equal to institute
The externally threaded screw pitch of locking is stated, tapered excessive sliding surface is equipped between the rivet nut 301 and the head of a nail 302, fixing screws 3 are screwed into nail hole
When 103, the entrance side wall of taper smooth surface and tapered thread extruding similar round screw hole makes the related centrum of fixing screws 3 to vertebra
Direction shifts between body, when upper and lower fixing screws 3 are screwed into simultaneously, squeezes hypocentrum between centrum simultaneously, and forms intervertebral
Pressurization.In addition, the head of a nail 302 squeezes bone plate salient angle to vertebral bone slot the extruding of nail hole 103 when fixing screws 3 are screwed into, with
Increase the stickiness of centrum bone plate salient angle 101 and vertebral bone slot 7.Meanwhile fixing screws 3 pass through rivet nut screw thread and nail when being screwed into
The screw pitch official post bone plate of cap thread is mobile to centrum, further promotes the stickiness and stability of salient angle 101 and vertebral bone slot 7.
The present invention uses principle:
1. split type embedded anterior cervical vertebrae pressurization merges fixed device and uses principle one: individually by intervertebral fusion body 2 when use
It is placed between centrum；Upper or preceding lower edge cooperates by the bulge-structure 102 that positioning mold opens saw and 1 salient angle of centrum bone plate before centrum
Bone slot 7；The merging of corresponding centrum bone plate 1 is fixed before centrum, and by the bulge-structure 102 of 1 salient angle of centrum bone plate
It is embedded in vertebral bone slot 7；Through 1 salient angle fixing screw hole 103 of centrum bone plate, it is eccentric that class circular hole is close under the guidance of guiding device
Bone hole is beaten at end, and is screwed into fixing screws 4 respectively.Its bone hole is that eccentric orfice adds, it can be achieved that drawing close between cone when fixing screws 3 are screwed into
Pressure.When the fixing glue head of a nail 302 is fully screwed into fixing screw hole 103, nail-plate forms locking connection.
2. split type embedded anterior cervical vertebrae pressurization merges fixed device and uses principle two: first by bone plate 1 and melting when use
Zoarium 2 is linked as association by attachment screw 4 or connection buckle 6, and upper or preceding lower edge opens saw and vertebra by positioning mold before centrum
The bone slot 7 that the bulge-structure 102 of 1 salient angle of body bone plate cooperates；Corresponding bone plate and the merging of fusion association are fixed centrum
Before, and the bulge-structure 102 of 1 salient angle of centrum bone plate is embedded in vertebral bone slot 7；Through 1 salient angle fixing screws of centrum bone plate
It is close to class circular hole eccentric end under the guidance of guiding device and beats bone hole, and be screwed into fixing screws 3 respectively in hole 103.Its bone hole is inclined
Heart hole is, it can be achieved that draw close pressurization between cone when fixing screws 3 are screwed into.When the fixing glue head of a nail 302 is fully screwed into fixing screw hole 103
When, nail-plate forms locking connection.
3. the embedded anterior cervical vertebrae pressurization of integral type merges fixed device and uses principle: upper or preceding lower edge is by fixed before centrum
Position mould opens the bone slot 7 of the cooperation of bulge-structure 102 of saw and 1 salient angle of centrum bone plate；It is placed in integral type bone plate fusion, salient angle
Raised structures 102 be embedded in vertebral bone slot 7；Bone hole and merging fixing screws 3 are beaten respectively.
Although reference be made herein to invention has been described for multiple explanatory embodiments of the invention, however, it is to be understood that
Those skilled in the art can be designed that a lot of other modification and implementations, these modifications and implementations will fall in this Shen
It please be within disclosed scope and spirit.More specifically, disclose in the application, drawings and claims in the range of, can
With the building block and/or a variety of variations and modifications of layout progress to theme combination layout.In addition to building block and/or layout
Outside the modification and improvement of progress, to those skilled in the art, other purposes also be will be apparent.
Claims (10)
1. fixed device is merged in embedded anterior cervical vertebrae pressurization, it is characterised in that: the fixed device includes: fixing screws and vertebra
Body bone plate；For the centrum bone plate axially consistent axial ends is each provided at least one salient angle with backbone, centrum bone plate is convex
The back side at angle is equipped with the bulge-structure of embeddable centrum；
The screw hole of similar round is provided in salient angle, the screw hole inner face is equipped with internal screw thread；The screw hole of the similar round its
Top curvature is greater than low side curvature；The screw hole is equipped with intilted screw hole inclined-plane back to one end of cervical bone；
The centrum bone plate is fixed on cervical bone by the fixing screws by the screw hole.
2. fixed device is merged in embedded anterior cervical vertebrae pressurization according to claim 1, it is characterised in that: fixing screws packet
Include fixed rivet nut and the fixed head of a nail；The fixed head of a nail is equipped with the head of a nail to match with screw hole inclined-plane in face of one end of screw hole
Inclined-plane.
3. fixed device is merged in embedded anterior cervical vertebrae pressurization according to claim 1, it is characterised in that: the salient angle
Thickness is no more than 3.5mm；The periphery of the bulge-structure of the embeddable centrum of salient angle is salient angle skirt border structure；Skirt thickness does not surpass
Cross 1.5mm.
4. fixed device is merged in embedded anterior cervical vertebrae pressurization according to claim 1, it is characterised in that: the vertebral bone
Plate face is equipped with the intervertebral fusion body of column figure to the one side of skeleton；Between the intervertebral fusion body and the centrum bone plate
Be detachably connected or integrated design by way of connect.
5. fixed device is merged in embedded anterior cervical vertebrae pressurization according to claim 4, it is characterised in that: vertebral bone plate face
It is horizontally arranged with intervertebral fusion body link slot in the middle part of to the bulge-structure of the embeddable centrum of one angle of convexity of centrum, the intervertebral melts
Fit link slot is equipped with the first connecting hole, offers the second connecting hole on the intervertebral fusion body；The intervertebral fusion body with
It is achieved a fixed connection by attachment screw or connection buckle through the first connecting hole and the second connecting hole in the middle part of centrum bone plate.
6. fixed device is merged in embedded anterior cervical vertebrae pressurization according to claim 5, it is characterised in that: the intervertebral melts
The end face of the fit hypocentrum bone that faces upward is equipped with annular knurl face or the flank of tooth.
7. fixed device is merged in embedded anterior cervical vertebrae pressurization according to claim 1, it is characterised in that: the salient angle spiral shell
The axial direction of nail hole is as needed with centrum bone plate principal plane in multidirectional single angle design: screw hole is equipped with spiral shell in single line or two-wire
Line；The screw hole internal screw thread is straight thread or taper thread.
8. fixed device is merged in embedded anterior cervical vertebrae pressurization according to claim 1, it is characterised in that: the fixed spiral shell
The rivet nut of nail is equipped with merging external screw thread, and the head of a nail is equipped with the locking external screw thread matched with the internal screw thread of salient angle fixing screw hole；
The externally threaded screw pitch of merging is greater than or equal to the externally threaded screw pitch of locking, and the head of a nail locking external screw thread is straight thread
Or taper thread, single thread or double thread, and matched with the internal screw thread of the fixing screw hole of the centrum bone plate salient angle.
9. fixed device is merged in embedded anterior cervical vertebrae pressurization according to claim 2, it is characterised in that: the fixing glue
Tapered excessive sliding surface is equipped between body and the fixed head of a nail.
10. fixed device is merged in embedded anterior cervical vertebrae pressurization according to claim 5, it is characterised in that: the connection
It buckles hollow inner face and is equipped with the internal screw thread cooperated with jackscrew, the jackscrew is equipped with the circle to match with the hollow internal screw thread of buckle
Cylinder.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201910390888.7A CN110025410A (en) | 2019-05-10 | 2019-05-10 | Fixed device is merged in embedded anterior cervical vertebrae pressurization |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201910390888.7A CN110025410A (en) | 2019-05-10 | 2019-05-10 | Fixed device is merged in embedded anterior cervical vertebrae pressurization |
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| CN110025410A true CN110025410A (en) | 2019-07-19 |
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201910390888.7A Pending CN110025410A (en) | 2019-05-10 | 2019-05-10 | Fixed device is merged in embedded anterior cervical vertebrae pressurization |
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| CN (1) | CN110025410A (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN114469462A (en) * | 2022-04-08 | 2022-05-13 | 北京大学第三医院（北京大学第三临床医学院） | Self-stabilizing atlantoaxial fusion cage |
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