CN207286123U - A kind of fixed system for backbone - Google Patents
A kind of fixed system for backbone Download PDFInfo
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- CN207286123U CN207286123U CN201720156326.2U CN201720156326U CN207286123U CN 207286123 U CN207286123 U CN 207286123U CN 201720156326 U CN201720156326 U CN 201720156326U CN 207286123 U CN207286123 U CN 207286123U
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- 230000004927 fusion Effects 0.000 claims abstract description 76
- 238000000465 moulding Methods 0.000 claims abstract description 26
- 238000005452 bending Methods 0.000 abstract description 5
- 241000446313 Lamella Species 0.000 description 14
- 210000003739 neck Anatomy 0.000 description 10
- 238000010586 diagram Methods 0.000 description 7
- 238000000034 method Methods 0.000 description 6
- 210000000988 bone and bone Anatomy 0.000 description 5
- 210000002532 foramen magnum Anatomy 0.000 description 5
- 229910001069 Ti alloy Inorganic materials 0.000 description 4
- 230000006378 damage Effects 0.000 description 4
- 208000014674 injury Diseases 0.000 description 4
- 230000033001 locomotion Effects 0.000 description 4
- 230000008569 process Effects 0.000 description 4
- 208000024891 symptom Diseases 0.000 description 4
- 206010061246 Intervertebral disc degeneration Diseases 0.000 description 3
- 239000004696 Poly ether ether ketone Substances 0.000 description 3
- 241001079814 Symphyotrichum pilosum Species 0.000 description 3
- 235000004224 Typha angustifolia Nutrition 0.000 description 3
- 208000027418 Wounds and injury Diseases 0.000 description 3
- 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 description 3
- 210000003128 head Anatomy 0.000 description 3
- 239000007943 implant Substances 0.000 description 3
- 230000007246 mechanism Effects 0.000 description 3
- 229920002530 polyetherether ketone Polymers 0.000 description 3
- 230000000694 effects Effects 0.000 description 2
- 230000006870 function Effects 0.000 description 2
- 238000009434 installation Methods 0.000 description 2
- 239000000463 material Substances 0.000 description 2
- 210000001154 skull base Anatomy 0.000 description 2
- 206010028980 Neoplasm Diseases 0.000 description 1
- 206010033799 Paralysis Diseases 0.000 description 1
- 208000002998 atlanto-axial fusion Diseases 0.000 description 1
- 210000003044 atlanto-occipital joint Anatomy 0.000 description 1
- 210000000133 brain stem Anatomy 0.000 description 1
- 230000008859 change Effects 0.000 description 1
- 230000006837 decompression Effects 0.000 description 1
- 230000007850 degeneration Effects 0.000 description 1
- 208000037265 diseases, disorders, signs and symptoms Diseases 0.000 description 1
- 208000035475 disorder Diseases 0.000 description 1
- 230000005489 elastic deformation Effects 0.000 description 1
- 238000005516 engineering process Methods 0.000 description 1
- 238000002513 implantation Methods 0.000 description 1
- 230000003902 lesion Effects 0.000 description 1
- 230000007774 longterm Effects 0.000 description 1
- 239000000203 mixture Substances 0.000 description 1
- 210000000214 mouth Anatomy 0.000 description 1
- 208000004296 neuralgia Diseases 0.000 description 1
- 210000000103 occipital bone Anatomy 0.000 description 1
- 230000035807 sensation Effects 0.000 description 1
- 210000003625 skull Anatomy 0.000 description 1
- 210000000278 spinal cord Anatomy 0.000 description 1
- 230000006641 stabilisation Effects 0.000 description 1
- 238000011105 stabilization Methods 0.000 description 1
- 210000001519 tissue Anatomy 0.000 description 1
- 230000008733 trauma Effects 0.000 description 1
Classifications
-
- A—HUMAN NECESSITIES
- A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
- A61B—DIAGNOSIS; SURGERY; IDENTIFICATION
- A61B17/00—Surgical instruments, devices or methods, e.g. tourniquets
- A61B17/56—Surgical instruments or methods for treatment of bones or joints; Devices specially adapted therefor
- A61B17/58—Surgical instruments or methods for treatment of bones or joints; Devices specially adapted therefor for osteosynthesis, e.g. bone plates, screws, setting implements or the like
- A61B17/68—Internal fixation devices, including fasteners and spinal fixators, even if a part thereof projects from the skin
- A61B17/70—Spinal positioners or stabilisers ; Bone stabilisers comprising fluid filler in an implant
-
- A—HUMAN NECESSITIES
- A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
- A61B—DIAGNOSIS; SURGERY; IDENTIFICATION
- A61B17/00—Surgical instruments, devices or methods, e.g. tourniquets
- A61B17/56—Surgical instruments or methods for treatment of bones or joints; Devices specially adapted therefor
- A61B17/58—Surgical instruments or methods for treatment of bones or joints; Devices specially adapted therefor for osteosynthesis, e.g. bone plates, screws, setting implements or the like
- A61B17/68—Internal fixation devices, including fasteners and spinal fixators, even if a part thereof projects from the skin
- A61B17/70—Spinal positioners or stabilisers ; Bone stabilisers comprising fluid filler in an implant
- A61B17/7059—Cortical plates
-
- A—HUMAN NECESSITIES
- A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
- A61B—DIAGNOSIS; SURGERY; IDENTIFICATION
- A61B17/00—Surgical instruments, devices or methods, e.g. tourniquets
- A61B17/56—Surgical instruments or methods for treatment of bones or joints; Devices specially adapted therefor
- A61B17/58—Surgical instruments or methods for treatment of bones or joints; Devices specially adapted therefor for osteosynthesis, e.g. bone plates, screws, setting implements or the like
- A61B17/68—Internal fixation devices, including fasteners and spinal fixators, even if a part thereof projects from the skin
- A61B17/70—Spinal positioners or stabilisers ; Bone stabilisers comprising fluid filler in an implant
- A61B17/7062—Devices acting on, attached to, or simulating the effect of, vertebral processes, vertebral facets or ribs ; Tools for such devices
-
- A—HUMAN NECESSITIES
- A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
- A61B—DIAGNOSIS; SURGERY; IDENTIFICATION
- A61B17/00—Surgical instruments, devices or methods, e.g. tourniquets
- A61B17/56—Surgical instruments or methods for treatment of bones or joints; Devices specially adapted therefor
- A61B17/58—Surgical instruments or methods for treatment of bones or joints; Devices specially adapted therefor for osteosynthesis, e.g. bone plates, screws, setting implements or the like
- A61B17/68—Internal fixation devices, including fasteners and spinal fixators, even if a part thereof projects from the skin
- A61B17/70—Spinal positioners or stabilisers ; Bone stabilisers comprising fluid filler in an implant
- A61B2017/7073—Spinal positioners or stabilisers ; Bone stabilisers comprising fluid filler in an implant with intervertebral connecting element crossing an imaginary spinal median surface
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- Health & Medical Sciences (AREA)
- Orthopedic Medicine & Surgery (AREA)
- Life Sciences & Earth Sciences (AREA)
- Neurology (AREA)
- Surgery (AREA)
- Heart & Thoracic Surgery (AREA)
- Engineering & Computer Science (AREA)
- Biomedical Technology (AREA)
- Nuclear Medicine, Radiotherapy & Molecular Imaging (AREA)
- Medical Informatics (AREA)
- Molecular Biology (AREA)
- Animal Behavior & Ethology (AREA)
- General Health & Medical Sciences (AREA)
- Public Health (AREA)
- Veterinary Medicine (AREA)
- Prostheses (AREA)
- Surgical Instruments (AREA)
Abstract
The utility model provides a kind of fixed system for backbone, including plate and fusion device, fusion device are connected on plate bottom surface, there is the nail with screw fit on plate, and the fusion device is rotatably coupled with the plate by buckle structure., can be with the nail position on adjustable plate, so as to adjust into nail position by being rotatably connected for fusion device and plate, while moulding groove make it that bending is more convenient and resistance to fracture is strong, thus ensure that fixed system operation flexibly, fixing-stable.
Description
Technical field
It the utility model is related to a kind of fixed system, and in particular to a kind of fixed system for backbone.
Background technology
Fracture and dislocation caused by degeneration, tumour and by physical trauma, may cause the backbone of human body various
The injury of various kinds.Basis cranii (near foramen magnum), atlas, dentata (C0, C1, C2) deformity and lesion can make atlanto occipital joint fusion simultaneously
And preceding short out contracting, cause cdontoid process that pivot bores relatively on move on to the position of foramen magnum, make foramen magnum it is opposite diminish, cdontoid process
Move up, oppress brain stem and oblongata neurothlipsis symptom occurs and causes spinal cord empty or even paralyse, is dead.It is common for above-mentioned symptom
Treatment method is loosened for anterior cervical vertebrae merges way of escape occipito―cervical fusion, and approach is indulged tough before being loosened (in oral cavity) on front side of cervical vertebra
Band, strut two Lateral mass joints, intervertebral decompression between atlas and axis, opposite move down of the cdontoid process of dentata is avoided foramen magnum, and be ground
Cdontoid process makes it diminish, and to complete to depressurize, some operations also need to expand foramen magnum；Then neck posterior approach occipital plate and nail rod
System is to skull, atlas, dentata is fixed, occipital plate is fixed on basis cranii occipital bone, and nail is hooked in atlas, lateral mass screw is fixed on
Dentata lateral mass, forms Posterior fixation.Meanwhile with advancing age, backbone can slowly degenerate, one of one of the most common symptom
It is exactly disc degeneration, disc degeneration can cause interpyramidal stability to reduce, or the intervertebral caused by losing moisture with elasticity
Disk lowers, intervertebral is narrow, and various symptoms, including neuralgia or functional disorder are brought to sufferer.Therefore, effectively controlling to backbone
Tool is treated to be of great significance.
Fixed plate is used in some operations carried out to spine fracture or dislocation, fixed plate is utilized through fixed plate
Bone fastener and be anchored on the bone tissue of backbone, two or more vertebral bodies is combined so that a part for backbone is fixed on
On the position needed.The fixed plate must is fulfilled for the stability of backbone and the reliability of system ensureing in long-term use
Bone fastener will not be unclamped or exited from plate, it is ensured that the fixation between plate and bone.During for atlas and axis, because oesophagus and epipharynx
Portion's tissue is very thin, and patient, which has, to swallow foreign body sensation and be easy to damage oesophagus and pharyngeal cause slight illness；There is no anti-back pin structure to set
Count, easily cause and move back nail accident；Hone lamella relative area is big, non-anatomical shape, plastotype are difficult.The method for the treatment of disc degeneration is profit
With interbody fusion, the intervertebral by Invasive lumbar fusion device using operation implantation patient, for strutting the simultaneously interpyramidal distance of correcting, most
Intervertebral fusion together, makes vertebra internode more firm above and below making afterwards, but since before fusion, Invasive lumbar fusion device is after backbone is done
Face upward and bend over, when work, easily to skid off from intervertebral, so needs one are more stably maintained at the fusion of intervertebral after being implanted into
Device.
Utility model content
The utility model overcomes that stability existing for spinal fixation system of the prior art is bad, moulding difficult, operation
The problems such as difficulty is big, there is provided a kind of fixed system suitable for backbone, the system are also applied for atlas and axis, and the system is fixed stably
It is fixed and adjustable into nail position, it is easily moulding.
The fixed system for backbone of the utility model, including plate and fusion device, fusion device are connected on plate bottom surface, plate
On have nail with screw fit, wherein the fusion device is rotatably coupled with the plate by buckle structure.
The buckle structure is formed between the fusion device and the plate, the fusion device and the plate one of them
Protrusion is equipped with, another is equipped with card slot, and raised and card slot the arc-shaped that is all or part of is distributed.
The plate bottom surface is opposite to be equipped with Extendible flake, there is card slot on the inside of the Extendible flake, and the fusion device bottom is opposite to be equipped with
It is raised；The buckle structure includes the card slot and the protrusion, and the card slot and the raised all or part are in circular arc
Shape is distributed, and the arc radius is same or like.
The plate bottom surface is opposite to be equipped with Extendible flake, there is protrusion on the inside of the Extendible flake, and the fusion device bottom is opposite to be equipped with
Card slot；The buckle structure includes described raised and described card slot, and the card slot and the raised all or part are in circular arc
Shape is distributed, and the arc radius is same or like.
The plate bottom surface is opposite to be equipped with two extensions, and the extension includes symmetrically arranged first Extendible flake and second
Extendible flake, there is protrusion on the inside of first Extendible flake and the second Extendible flake, and the fusion device bottom is opposite to be equipped with card slot；It is described
Buckle structure includes described raised and described card slot, the card slot and it is described it is raised be distributed in arc-shaped, wherein, two described the
One Extendible flake and two second Extendible flakes are respectively distributed along a central point in arc-shaped, and two extensions are enclosed for institute
State the slidably distance that the distance between the space of fusion device slip, two described central points are the fusion device.
There is gap between the inner wall of the fusion device and the extension.
The scope of the distance between two central points L is 1mm≤L≤4mm.
The first Extendible flake and the second Extendible flake of the same extension are connected as one by tangent straightway.
Each Extendible flake is equipped with one or more be open.
At least one screw includes the neck between head, screwed bar portion and head and bar portion, described
Neck is groove, and the groove is not connected with the screw thread.
At least one nail includes ball, stepped hole and bottom outlet, flexible groove on the stepped hole and bottom outlet, institute
State bottom diameter and be more than the screw recess diameter, less than the screw gauge diameter.
There is a moulding groove in the plate bottom surface, and the cross section of the moulding groove is arc, and the arc length of the arc is from plate both sides
Tapered among to plate.
The depth of the moulding groove from plate both sides to plate among gradually become shallower as, the longitudinal section of the moulding groove is arc.
For the nail on the same straight line of plate length direction, the fusion device deviates the straight line.
The plate is made of titanium alloy, and the fusion device is made of PEEK.
The fixed system for backbone of the utility model, passes through lock by the fusion device and titanium alloy hone lamella of Peek materials
Structure is rotatably coupled, easy to connect reliable, and further, fusion device and hone lamella can be along ring rotations, and rotation angle can be
± 3 degree of scopes, to eliminate internal stress and make it that upper nail position is more flexible；The circular arc of lock is intersegmental can also to set straightway,
So that fusion device not only can be rotatable, a distance can also be moved up and down, the position adjustable extent of fusion device is big, can apply
Used in personalization；There is anti-back universal nail mechanism in the fixed system, the spy of nail elastic mechanism and screw neck on plate
So that realizing the effect of anti-back nail in the case where not increasing mechanism, screw has ± 6 degree of gimbal function again for different design；Together
When, the hone lamella back side twice moulding groove of bicircular arcs type bending is compared with the moulding groove plastotype of the identical linear pattern bending of sectional area, more
It is convenient and strength-saving, resistance to fracture is more preferable.In the fixed system of the utility model, can with the nail position on adjustable plate so that
Adjust into nail position, the universal anti-back design of nail and screw, have adjusted into angle is followed closely, at the same time on the basis of it ensure that anti-back
The moulding groove of arc make it that bending is more convenient and resistance to fracture is strong, so as to ensure that fixed system operation is flexible, fixed stably
It is fixed.
Especially, when the utility model is applied to fix in atlas and axis, transoral approach atlas and axis；With the independence of left and right two
The form of implant fix, identical or different product specification may be selected, solve deformity and personalized anatomic parameter is asked
Topic, solve the problems, such as operation it is multifarious this；Injury and the risk of patient's second operation are avoided, solves atlas and axis hand
Art is because difficulty becomes greatly operation forbidden zone problem.
Brief description of the drawings
Fig. 1 is the stereogram of an embodiment of the fixed system of the utility model；
Fig. 2 is the plate stereogram of an embodiment of the fixed system of the utility model；
Fig. 3 is the bottom isometric view of an embodiment of the fixed system of the utility model；
Fig. 4 is the plate bottom isometric view of an embodiment of the fixed system of the utility model；
Fig. 5 is the screw side view in an embodiment of the fixed system of the utility model；
Fig. 6 is the plate stereogram in an embodiment of the fixed system of the utility model；
Fig. 7 is the nail side view in an embodiment of the fixed system of the utility model；
Fig. 8 is the schematic diagram of the nail and Bolt-hole fits in an embodiment of the fixed system of the utility model；
Fig. 9 is the schematic diagram of the inclined angle of nail in an embodiment of the fixed system of the utility model；
Figure 10 is the plate bottom isometric view of an embodiment of the fixed system of the utility model；
Figure 11 is the plate bottom surface Extendible flake schematic diagram of an embodiment of the fixed system of the utility model；
Figure 12 is the fusion device schematic diagram of an embodiment of the fixed system of the utility model；
Figure 13 is the stereogram that the fusion device of an embodiment of the fixed system of the utility model coordinates with plate；
Figure 14 is the side view that the fusion device of an embodiment of the fixed system of the utility model coordinates with plate；
Figure 15 is the longitudinal section of the moulding groove of an embodiment of the fixed system of the utility model；
Figure 16 is the cross-sectional view of the moulding groove of an embodiment of the fixed system of the utility model；
Figure 17 is the plate bottom surface Extendible flake schematic diagram of the another embodiment of the fixed system of the utility model；
Figure 18 is the distribution schematic diagram of the Extendible flake in Figure 17；
Figure 19 is the fusion device schematic diagram of the another embodiment of the fixed system of the utility model.
Reference numeral
1- spinal fixation systems, 2- plates, 3- fusion devices, 4- screws, 5- nail, 6- buckle structures, 7- Extendible flakes, 8- are convex
Rise, 9- card slots, 10- openings, 11- screw heads, 12- screw bar portions, 13- screw necks, 14- ball, 15- stepped holes, 16- bottoms
Hole, 17- elastic grooves, the moulding grooves of 18-
Embodiment
Embodying the exemplary embodiments of the utility model features and advantages will describe in detail in the following description.It should be understood that
It is that the utility model can have various changes in different embodiments, it does not all depart from the scope of the utility model, and
Explanation therein and attached drawing inherently are illustrated as being used, and are not used to limitation the utility model.
Fixed system in the utility model can be made of the material commonly used in the art such as titanium alloy, PEEK, and preferably plate is by titanium
Alloy is made, and fusion device is made of PEEK.Fixed system 1 for backbone as shown in Figure 1, including plate 2 and fusion device 3, melt
Clutch connecting plate bottom surface, plate 2 are the hone lamella for being connected with bone.Have on plate with screw 4 coordinate nail 5, the fusion device 3 with
The plate 2 is rotatably coupled by buckle structure 6.The buckle structure is formed between the fusion device and the plate, institute
One of them for stating fusion device and the plate is equipped with protrusion, another is equipped with card slot, the whole of the protrusion and card slot or
Part is distributed for arc-shaped.Fig. 2, Fig. 4 are the stereogram of the plate different angle in the utility model, and Fig. 3 is plate and fusion device group
Figure after dress.
The plate bottom surface is opposite to be equipped with two Extendible flakes 7, has protrusion 8 on the inside of the Extendible flake, as shown in Figure 10,11；It is described
Fusion device bottom is opposite to be equipped with two card slots 9, as shown in figure 12；The buckle structure includes described raised 8 and the card slot 9, institute
State card slot and the protrusion is distributed in arc-shaped, the arc radius of card slot is equal with raised arc radius, or raised circular arc
Radius is slightly larger than the arc radius of card slot, is inserted into when both coordinate easy to fusion device；It may be set to be, on the inside of the Extendible flake
There is card slot, the fusion device bottom is opposite to be equipped with two protrusions；The buckle structure includes the card slot and the protrusion, the card
Groove and the raised extending direction are arc-shaped, and the arc radius of card slot is equal with the arc radius of projection, or the circular arc of card slot
Radius is inserted into slightly larger than raised arc radius when both coordinate easy to fusion device.Each Extendible flake 7 be equipped with one or
Multiple openings 10.
As shown in Figure 13,14, the interface of the bottom section of fusion device 3 includes circular cone, circular arc and two are oppositely arranged
Card slot 9, the trend of card slot is arc-shaped；There are two Extendible flakes being oppositely arranged 7, each Extendible flake 7 in hone lamella bottom surface in system
On have an opening 10, the elasticity of the Extendible flake in itself can be improved, may also set up multiple openings herein.Extendible flake 7 is into circular ring shape
Distribution, and the trend of protrusion 8 on the inside of Extendible flake is also to be arc-shaped.Card slot 9 on fusion device and the protrusion 8 on Extendible flake are radius
Identical circular arc.By the buckle structure of above-mentioned design, fusion device 3, which can go to 90 degree, to be set up and screws, can also be pressed directly into
Extendible flake 7 on plate.Fusion device after combination can do ± 3 degree of rotary motions relative to hone lamella holes line, so to hone lamella into
Nail position can adjust, and can be eliminated internal stress with fine motion and ensured that system is reliable and stable after simultaneity factor installation.
In another embodiment, the interface of the bottom section of fusion device 3 is oppositely arranged including circular arc and two
Card slot 9, card slot are arc-shaped；There are two Extendible flakes being oppositely arranged 7 in hone lamella bottom surface in Atlantoaxial fusion system, each extension
There is an opening 10 on piece 7, the elasticity of the Extendible flake in itself can be improved, may also set up multiple openings.The pars intermedia of two Extendible flakes
Be divided into linear, both ends are distributed in circular, and the protrusion of the inner side of Extendible flake straight line portion is linear, two end portions it is interior
The raised trend of side is also to be arc-shaped.Card slot on fusion device and the protrusion on Extendible flake are the identical circular arc of radius, or raised
Arc radius slightly larger than the radius on card slot, be easily installed fusion device and coordinate stabilization.Fusion device after combination relative to
Hone lamella holes line can not only rotate, and can also move up and down, so to hone lamella into nail position can up and down and
Left and right adjusts, and can eliminate internal stress with fine motion after simultaneity factor installation, ensure that system is reliable and stable.
As shown in Figures 17 to 19, in another embodiment, which is relatively set with two extensions, each
Extension includes symmetrically arranged first Extendible flake and the second Extendible flake.Specifically, the first extension includes the first Extendible flake
71 and second Extendible flake 72, and the second extension includes the first Extendible flake 73 and the second Extendible flake 74.In 71 He of the first Extendible flake
The protrusion 8 shown in Figure 10 is also provided with second Extendible flake 72.Opposite card slot 9, the lock knot are equipped with the bottom of fusion device 3
Structure includes protrusion 8 and card slot 9, and raised and card slot can be combined with each other.The card slot and the protrusion are distributed in arc-shaped.Its
In, in present embodiment, two the first Extendible flakes 71 and 73 are distributed along a central point in arc-shaped, and two the second Extendible flakes
72 and 74 are distributed along another central point in arc-shaped, the major axis that the direction of the line of the two central points can substantially with plate 2
Direction is consistent.It is fusion device that the two extensions, which enclose the distance between the space slided for fusion device 3, two central points L,
Slidably distance.It is preferred that the scope of the distance between the two central points L is 1mm≤L≤4mm.
Furthermore, there can be certain gap between fusion device and the inner wall of extension.Wherein, in this implementation
A diameter of φ a of the circular arc of Extendible flake distribution in mode, and the lower section of groove 9 of fusion device 3 is close to the part of plate 2, its maximum
A diameter of φ b, φ a >=φ b, so as to facilitate fusion device 3 to be slided in the space that extension is enclosed.In addition, same institute
The first Extendible flake and the second Extendible flake for stating extension are connected as one by tangent straightway, to strengthen the strong of extension
Degree, that is to say, that the first Extendible flake can be connected as one to the second Extendible flake linear extension and with the second Extendible flake, this second
Extendible flake can also be connected as one to the first Extendible flake linear extension and with the first Extendible flake.
In the present embodiment, which can rotate relative to plate 2, can be slided so that opposite plate 2 is opposite, especially
It is to carry out large range of slip relative to the long axis direction of plate 2.So, fusion device 3 can carry out fine motion after installing, compared with
The internal stress between fusion device 3 and plate 2 is eliminated well so that system is reliable and stable, and fusion device 3 and plate 2 are realized and be reliably connected.
In one embodiment, at least one screw 4 includes head 11, screwed bar portion 12, Yi Jitou
Neck 13 between portion and bar portion, the neck are groove, and the groove is not connected with the screw thread, as shown in Figure 5.At least one
A nail includes ball 14, stepped hole 15 and bottom outlet 16, flexible groove 17 on the stepped hole and bottom outlet, such as Fig. 6, figure
Shown in 7.The bottom diameter is more than the screw recess diameter, less than the screw gauge diameter.
Have the groove that a diameter is less than nail rod diameter in nail rod and ball cap intersection, be neck 13, nail by ball,
Elastic groove composition on bottom outlet, stepped hole and bottom outlet and stepped hole, hone lamella bottom diameter are more than screw neck trench diameter, small
In screw gauge diameter, screw helicla flute finishes up close at groove but is not connected with groove.Due to having on stepped hole and bottom outlet
Elastic groove 17, bottom outlet when being subject to external force elastic deformation and become larger so that screw bar portion 12 is by groove position；And bar
By rear, elastic groove 17 recovers state before deformation in portion 12, and bottom outlet radius enters bottom still less than screw rod radius, 13 groove of neck
Hole, blocked by top shrapnel and the non-threaded portion of lower section screw rod, therefore cannot be exited without enough anti-phase external force screws, anti-back
Effect is good.Hone lamella bottom outlet radius is more than screw grooves diameter, thus screw grooves enter hone lamella bottom outlet after can be tilted at its,
Change angle, screw has ± 6 degree of gimbal function.The size of screw gauge diameter and trench diameter determines resisting pull out forces and universal
The size of angle, as shown in Figure 8, Figure 9.
As shown in the embodiment in Figure 10, there is moulding groove 18 in the plate bottom surface, and the cross section of the moulding groove is arc,
And the arc length of the arc tapers among two lateral plate of plate, preferably symmetrically tapers into, as shown in figure 16.The modeling
The depth of shape groove 18 from plate both sides to plate among gradually become shallower as, longitudinal section is arc, as shown in figure 15, the depth among moulding groove
For the 1/4 to 1/8 of plate thickness, the depth of moulding groove both sides is the 3/4 to 1/3 of plate thickness；For the ease of processing, preferably moulding groove
Cross section circular arc be the identical circular arc of radius, circular arc radian tapers among two lateral plate of plate.From the longitudinal section of groove
See, plate thick middle herein, two sides are thin, bending and more aspect laborsaving, the intensity of plate under conditions of equal sectional area when distorting
All improve a lot with plasticity.The moulding groove can be arranged on above plate or bottom surface according to actual moulding demand, is set
One or more, in embodiment as depicted, a moulding groove 18 is respectively arranged on the both sides of the bottom surface of plate, fusion device,
Depth among moulding groove is the 1/6 of plate thickness.
When the fixed system is used in atlas and axis operation, the nail at plate both ends is located along the same line, and fusion device is arranged on
The preferred 3mm of eccentricity of the eccentric position of the center deviation straight line, two screw lines and fusion device, with adapt to above and below atlas and axis into
The 3mm eccentricities of nail point line and Lateral mass joint above and below atlas and axis.This design can be used in transoral approach atlas and axis fixing hand
Art, selecting the fixed system in two the utility model, as shown in Figure 1 and Figure 2, left and right two is solely respectively as left and right implant
Vertical implant, which is fixed and (identical or different product specification may be selected), can solve deformity and personalized anatomic parameter is asked
Topic, solve the problems, such as operation it is multifarious this, it is convenient and reliable, avoid injury and the risk of patient's second operation, solve
Atlas and axis operation is because the problem of difficulty becomes greatly operation forbidden zone.
The technical solution of the utility model is disclosed as above by alternative embodiment.Artisan will appreciate that
Made more in the case of not departing from the revealed the scope of the utility model of the claim appended by the utility model and spirit
Dynamic and retouching, within the scope of the claims of category the utility model.
Claims (13)
1. a kind of fixed system for backbone, including plate and fusion device, the fusion device is connected on the plate bottom surface, described
There is the nail with screw fit on plate, it is characterised in that：The fusion device is rotatably coupled with the plate by buckle structure.
2. fixed system according to claim 1, it is characterised in that：The buckle structure is in the fusion device and the plate
Between formed, one of them of the fusion device and the plate are equipped with protrusion, another is equipped with card slot, the protrusion and block
Groove is all or part of arc-shaped distribution.
3. fixed system according to claim 2, it is characterised in that：The plate bottom surface is opposite to be equipped with Extendible flake, described to prolong
Stretching has card slot on the inside of piece, opposite be equipped with the inside of protrusion, or the Extendible flake in the fusion device bottom has protrusion, the fusion device bottom
Portion is opposite to be equipped with card slot；The buckle structure includes the card slot and the protrusion, the card slot and the raised whole or
Part is distributed in arc-shaped, and the arc radius is same or like.
4. fixed system according to claim 2, it is characterised in that the plate bottom surface is opposite to be equipped with two extensions, institute
Stating extension includes symmetrically arranged first Extendible flake and the second Extendible flake, the inner side of first Extendible flake and the second Extendible flake
There is protrusion, the fusion device bottom is opposite to be equipped with card slot；The buckle structure includes described raised and described card slot, the card slot
It is distributed with the protrusion in arc-shaped, wherein, two first Extendible flakes and two second Extendible flakes are respectively along a center
Point is distributed in arc-shaped, and two extensions enclose the space slided for the fusion device, between two central points
Distance be the fusion device slidably distance.
5. fixed system according to claim 4, it is characterised in that between the inner wall of the fusion device and the extension
With gap.
6. fixed system according to claim 4, it is characterised in that the scope of the distance between two described central points L
For 1mm≤L≤4mm.
7. fixed system according to claim 4, it is characterised in that the first Extendible flake and second of the same extension
Extendible flake is connected as one by tangent straightway.
8. fixed system according to claim 3, it is characterised in that：The Extendible flake is equipped with one or more be open.
9. fixed system according to claim 1, it is characterised in that：At least one screw includes head, with spiral shell
Neck between the bar portion and head and bar portion of line, the neck are groove, and the groove is not connected with the screw thread.
10. fixed system according to claim 9, it is characterised in that：At least one nail includes ball, stepped hole
And bottom outlet, flexible groove on the stepped hole and bottom outlet, the bottom diameter are more than the screw recess diameter, less than described
Screw gauge diameter.
11. fixed system according to claim 1, it is characterised in that：There is moulding groove in the plate bottom surface, the moulding groove
Cross section is arc, and the arc length of the arc tapers among two lateral plate of plate.
12. fixed system according to claim 11, it is characterised in that：During the depth of the moulding groove is from plate both sides to plate
Between gradually become shallower as, the longitudinal section of the moulding groove is arc.
13. according to any fixed systems of claim 1-12, it is characterised in that：The nail is same plate length direction
On one straight line, the fusion device deviates the straight line and sets.
Applications Claiming Priority (2)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201610096398 | 2016-02-22 | ||
| CN2016100963982 | 2016-02-22 |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN207286123U true CN207286123U (en) | 2018-05-01 |
Family
ID=59675710
Family Applications (2)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201710094115.5A Active CN107095713B (en) | 2016-02-22 | 2017-02-21 | Fixing system for spine |
| CN201720156326.2U Active CN207286123U (en) | 2016-02-22 | 2017-02-21 | A kind of fixed system for backbone |
Family Applications Before (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201710094115.5A Active CN107095713B (en) | 2016-02-22 | 2017-02-21 | Fixing system for spine |
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| Country | Link |
|---|---|
| CN (2) | CN107095713B (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN107095713A (en) * | 2016-02-22 | 2017-08-29 | 北京纳通科技集团有限公司 | A kind of fixed system for backbone |
Families Citing this family (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US10588644B2 (en) * | 2017-08-31 | 2020-03-17 | DePuy Synthes Products, Inc. | Guide attachment for power tools |
| CN111544103A (en) * | 2019-02-12 | 2020-08-18 | 上海长征医院 | Spine fixing system |
| CN111938882A (en) * | 2020-08-24 | 2020-11-17 | 四川大学华西医院 | Posterior atlantoaxial lateral mass joint fusion fixator component |
Family Cites Families (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US7819903B2 (en) * | 2003-03-31 | 2010-10-26 | Depuy Spine, Inc. | Spinal fixation plate |
| FR2894130B1 (en) * | 2005-12-05 | 2012-07-13 | Spineart Sa | CAGES OF CONTENTION AND INTERSOMATIC FUSION OF VERTEBRATES |
| US9247973B2 (en) * | 2007-09-28 | 2016-02-02 | DePuy Synthes Products, Inc. | Anti-microbial implant |
| CN107095713B (en) * | 2016-02-22 | 2020-06-09 | 北京纳通科技集团有限公司 | Fixing system for spine |
| CN106388981B (en) * | 2016-10-24 | 2018-10-02 | 闻泰医疗科技（上海）有限公司 | A kind of lumbar intervertebral fusion device |
-
2017
- 2017-02-21 CN CN201710094115.5A patent/CN107095713B/en active Active
- 2017-02-21 CN CN201720156326.2U patent/CN207286123U/en active Active
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN107095713A (en) * | 2016-02-22 | 2017-08-29 | 北京纳通科技集团有限公司 | A kind of fixed system for backbone |
| CN107095713B (en) * | 2016-02-22 | 2020-06-09 | 北京纳通科技集团有限公司 | Fixing system for spine |
Also Published As
| Publication number | Publication date |
|---|---|
| CN107095713A (en) | 2017-08-29 |
| CN107095713B (en) | 2020-06-09 |
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Effective date of registration: 20240417 Address after: G356, 3rd floor, building 1, yard 9, CHENGWAN street, Haidian District, Beijing 100094 Patentee after: Beijing natong Medical Technology Holding Co.,Ltd. Country or region after: China Address before: 100082 room 8-2-1201, ocean view area 15, Desheng West Street, Haidian District, Beijing. Patentee before: BEIJING NATON TECHNOLOGY GROUP Co.,Ltd. Country or region before: China |
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