CN105361981B - A kind of cervical vertebral fusion cage - Google Patents
A kind of cervical vertebral fusion cage Download PDFInfo
- Publication number
- CN105361981B CN105361981B CN201510903290.5A CN201510903290A CN105361981B CN 105361981 B CN105361981 B CN 105361981B CN 201510903290 A CN201510903290 A CN 201510903290A CN 105361981 B CN105361981 B CN 105361981B
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- hole
- cervical vertebral
- fusion
- lock screw
- groove
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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
- A61F2/442—Intervertebral or spinal discs, e.g. resilient
Abstract
The invention discloses a kind of cervical vertebral fusion cage, including lock screw and fusion body, fusion body is fixed in cervical vertebral body by lock screw, and is merged and be provided with multiple pilot pins and multiple spacer pins on body, pilot pin can develop under X-ray, for controlling the implantation position of fusion body；Body is merged to refer to cyclic structure, in-between through hole is bone grafting hole, including annular leading portion and canned paragraph two parts, annular leading portion includes upper and lower surface and side wall, annular leading portion is provided with the first positioning hole, and the centre position of canned paragraph is provided with screwed hole, and screwed hole is connected with bone grafting hole；The upper and lower sides of screwed hole are symmetrically arranged with mounting hole, and outside setting is fluted, and the second positioning hole is provided with the groove face at left and right sides of groove.Cervical vertebral fusion cage of the present invention is rational in infrastructure, install convenient, stable and firm, thereon, the prismatic toothing of lower surface, the instant stabilization after implantation can be achieved, and can promotes fusion, and can maintain cervical curvature well.
Description
Technical field
The present invention relates to orthopedic medical device technical field, more particularly to a kind of cervical vertebral fusion cage.
Background technology
Interbody fusion is one of method for treating spinal disease, and annual increasing crowd receives interbody fusion
Treatment.Interbody fusion includes autologous bone transplanting fusion and allogenic bone transplantation fusion, and due to autologous bone limited source, increase supplies area
Wound, the shortcomings of timely mechanically stable can not be provided so that the clinical practice of interbody fusion is restricted, and allograph bone is moved
It is also to influence it clinical extensive to plant not only costly, limited amount but also the viral transmission as caused by allograph bone and immunological rejection
Using the main reason for.Therefore, a kind of new cervical vertebral fusion cage how is developed, to solve autologous bone limited source, increase supplies
Area's wound, timely mechanically stable can not be provided；Allogenic bone transplantation is costly, limited amount, and allograph bone easily causes viral biography
Broadcast and the problem of immunological rejection, turn into those skilled in the art's problem urgently to be resolved hurrily.
The content of the invention
It is an object of the invention to provide a kind of cervical vertebral fusion cage, solve autologous bone limited source, increase for area's wound, can not
Timely mechanically stable is provided；Allogenic bone transplantation is costly, limited amount, and allograph bone easily causes viral transmission and immunological rejection
The problem of.
In order to solve the above technical problems, the present invention adopts the following technical scheme that：
A kind of cervical vertebral fusion cage of the present invention, including lock screw and fusion body, the fusion body pass through the locking
Screw is fixed in cervical vertebral body, and is merged and be provided with multiple pilot pins and multiple spacer pins on body, and the pilot pin can be in X
Develop under light, for controlling the implantation position of the fusion body, the spacer pin is used to prevent the lock screw from deviating from；
The fusion body is refers to cyclic structure, and the intermediate throughholes for referring to cyclic structure are bone grafting hole, the bone grafting hole
It is interior to be filled with fragment or powdered implant；The finger cyclic structure includes annular leading portion and canned paragraph two parts, the ring
Shape leading portion includes upper and lower surface and side wall, and annular leading portion is provided with the first positioning hole for installing the pilot pin, the fixation
Section is provided with the screwed hole being engaged with implantation instrument, the screwed hole and the bone grafting perpendicular to the centre position of sidewall direction
Hole is connected；The upper and lower sides of the screwed hole are symmetrically arranged with the mounting hole for installing the lock screw, screwed hole it is outer
Side setting is fluted, and the second positioning hole for installing the spacer pin is provided with the groove face at left and right sides of the groove.
Further, the lock screw includes the head of a nail, rivet nut and nail tail, and the periphery of the head of a nail is sphere, the head of a nail
Bottom center is provided with mounting groove, and the surface of the rivet nut is provided with taper thread, and the nail tail is provided with cutting edge.
Further, the mounting groove is specially rectangular channel, cross recess, flat recess or hex slot.
Further, the upper and lower surface of the front end of the fusion body ring body is provided with prismatic tooth, and the prismatic tooth is set
It is equipped with multiple and uniform side by side.
Further, the upper and lower surface of the annular leading portion is symmetrical arranged using by-level face as symmetrical plane, and
The angle on upper and lower surface is α, and the α is arranged to 2~6 °.
Further, the mounting hole is arranged to shoulder hole, the nail of the size of the shoulder hole and the lock screw
Cap and rivet nut match.
Further, two mounting holes are symmetrical arranged using by-level face as symmetrical plane, and the axle of mounting hole
Heart line and by-level face angle are β, and the angle of the β is 20~30 °.
Further, first positioning hole extends vertically through the upper and lower surface, and it is 3 that it, which sets quantity, wherein one
Individual to be hit exactly positioned at the left side of the annular leading portion, two other is located at the right end of the annular leading portion；Second positioning
Hole is arranged vertically on the groove face at left and right sides of the groove, and it is 2 that quantity is set on each of which groove face.
Further, be provided with slotted eye at left and right sides of the groove, the setting direction of the slotted eye with
The centerline direction of the second positioning hole on groove face is vertical.
Further, the lock screw uses titanium alloy material, and the fusion body uses polyetheretherketonematerials materials.
Compared with prior art, advantageous effects of the invention：
Cervical vertebral fusion cage of the present invention, during operation, will fusion body implantation, lock screw consolidates through mounting hole by body is merged
It is scheduled on cervical vertebral body, wherein fragment or powdered implant are filled with the bone grafting hole among fusion body, in axial pressure
Under power effect, polyether-ether-ketone fusion body is in close contact with cervical vertebral body, promote fusion；And it is provided with and determines on fusion body
Position pin and spacer pin, wherein pilot pin can develop under X-ray, make to be easy to the accurate position for determining fusion body during operation；It is spacing
Sell for preventing the lock screw from deviating from.
In addition, the upper and lower surface of the front end of the fusion body ring body is provided with prismatic tooth, prismatic tooth be provided with it is multiple and
It is uniform side by side, after being implanted into lamina of cervical vertebra, increasing friction force, prevent from slipping；And upper and lower surface and the angle of horizontal centre plane are α,
The α is arranged to 2~6 °, to increase hold, further enhances the stability of fusion body implantation, makes fusion body and cervical vertebra
Connection it is more firm, reach immediately stable purpose；The bottom center of the head of a nail of lock screw is provided with mounting groove, is easy to apparatus
Hold；The surface of rivet nut is provided with taper thread, adds hold, improves resistance to plucking output capacity；Nail tail is provided with cutting edge, during operation
Lock screw implantation centrum is convenient and swift.
In summary, cervical vertebral fusion cage of the present invention is rational in infrastructure, install convenient, stable and firm, thereon, the prismatic of lower surface
Toothing, the instant stabilization after implantation can be achieved, and can promotes fusion, and can maintain cervical curvature well.
Brief description of the drawings
The invention will be further described for explanation below in conjunction with the accompanying drawings.
Fig. 1 is cervical vertebral fusion cage structural representation (broken section) of the present invention；
Fig. 2 is lock screw structural representation of the present invention；
Fig. 3 is present invention fusion body structural representation；
Fig. 4 is present invention fusion body schematic front view (broken section)；
Fig. 5 is present invention fusion body top view；
Fig. 6 is present invention fusion body right view；
Description of reference numerals：1st, pilot pin；2nd, lock screw；3rd, body is merged；4th, spacer pin；5th, the head of a nail；6th, mounting groove；
7th, rivet nut；8th, tail is followed closely；9th, prismatic tooth；10th, bone grafting hole；11st, the first positioning hole；12nd, mounting hole；13rd, screwed hole；14th, groove；
15th, the second positioning hole；16th, slotted eye.
Embodiment
As shown in figs. 1 to 6, a kind of cervical vertebral fusion cage, including lock screw 2 and fusion body 3, the fusion body 3 are logical
Cross the lock screw 2 to be fixed in cervical vertebral body, and merge and be provided with multiple pilot pins 1 and multiple spacer pins 4 on body 3,
The pilot pin 1 can develop under X-ray, and for controlling the implantation position of the fusion body 3, the spacer pin 4 is used to prevent
The lock screw 2 is deviate from；
The fusion body 3 is refers to cyclic structure, and the intermediate throughholes for referring to cyclic structure are bone grafting hole 10, the bone grafting
Fragment or powdered implant are filled with hole 10；The finger cyclic structure includes annular leading portion and canned paragraph two parts, institute
Stating annular leading portion includes upper and lower surface and side wall, and annular leading portion is provided with the first positioning hole 11 for installing the pilot pin 1,
The canned paragraph is provided with the screwed hole 13 being engaged with implantation instrument, the screwed hole perpendicular to the centre position of sidewall direction
13 are connected with the bone grafting hole 10；The upper and lower sides of the screwed hole 13 are symmetrically arranged with for installing the lock screw 2
Mounting hole 12, the outside of screwed hole 13 set fluted 14, are provided with the groove face of the left and right sides of groove 14 for installing
Second positioning hole 15 of the spacer pin 4.
As shown in Fig. 2 the lock screw 2 includes the head of a nail 5, rivet nut 7 and nail tail 8, the periphery of the head of a nail 5 is sphere,
The bottom center of the head of a nail 5 is provided with mounting groove 6, is easy to apparatus to hold and lock screw 2 is implanted into fusion body 3；The rivet nut 7
Surface be provided with taper thread, add hold, improve resistance to plucking output capacity；The nail tail 8 is provided with cutting edge, conveniently during operation
Lock screw 2 is implanted into centrum；The mounting groove 6 is specially rectangular channel, cross recess, flat recess or hex slot, suitable for a variety of rule
The installation tool of lattice, practicality are stronger.
As shown in Figure 3, Figure 4, the upper and lower surface of the front end of the fusion ring body of body 3 is provided with prismatic tooth 9, the rib
Shape tooth 9 is provided with multiple and uniform side by side, after being implanted into lamina of cervical vertebra, increasing friction force, prevents from slipping.The annular leading portion it is upper,
Lower surface is symmetrical arranged using by-level face as symmetrical plane, and the angle on upper and lower surface is α, and the α is arranged to 2~6 °, excellent
4 ° are first selected, to increase hold, prevents from merging the abjection of body 3, further the stability of increase fusion body implantation.
As shown in figure 4, the mounting hole 12 is arranged to shoulder hole, the size of the shoulder hole and the lock screw 2
The head of a nail 5 and rivet nut 7 match.Two mounting holes 12 are symmetrical arranged using by-level face as symmetrical plane, and mounting hole 12
Axial line and by-level face angle be β, the angle of the β is 20~30 °, can preferentially select 25 °.
As shown in figure 5, first positioning hole 11 extends vertically through the upper and lower surface, it is 3 that it, which sets quantity, wherein
One hits exactly positioned at the left side of the annular leading portion, and two other is located at the right end of the annular leading portion, during operation, can show
The pilot pin 1 of shadow inserts the first positioning hole 11, convenient operation, the position of accurate control implantation；Second positioning hole 15 is vertical
It is arranged on the groove face of the left and right sides of the groove 14, it is 2 that quantity is set on each of which groove face, and during assembling, spacer pin 4 inserts
Second positioning hole 15 is to prevent the lock screw 2 from deviating from.
As shown in fig. 6, the left and right sides of the groove 14 is provided with slotted eye 16, the setting side of the slotted eye 16
To vertical with the centerline direction of the second positioning hole 15 on groove face, during assembling, spacer pin 4 is installed first, then to end face
Left and right ends are processed into elliptical hole 16, can prevent the installation of spacer pin 4 is stable not deviate from.
The lock screw 2 uses titanium alloy material, and the fusion body 3 uses polyether-ether-ketone (PEEK) material；Wherein
Polyetheretherketonematerials materials have a special engineering plastics of the excellent properties such as high temperature resistant, self-lubricating, easy processing and high mechanical properties, and with
Human body has good blending, and traditional titanium is successfully instead of as artificial bone.It is preferential to merge body 3
PEEK materials are selected, titanium alloy material secondly can be selected.
The action process of the present invention is as follows：
During operation, the lateral incision first outside neck, appear lesion locations, fusion body 3 is implanted into after the completion of preliminary treatment, locked
Determine screw 2 to be fixed on body 3 is merged on cervical vertebral body through mounting hole 12, wherein in the bone grafting hole 10 among fusion body 3
Fragment or powdered implant are filled, under axial compressive force effect, PEEK fusion bodies 3 is in close contact with cervical vertebral body,
Promote fusion；Thereon, the prismatic tooth of lower surface, it can effectively prevent from merging the abjection of body 3.During assembling, the positioning that be able to will develop
Pin 1 inserts the first positioning hole 11, the position that can accurately control fusion body 3 to be implanted into；Spacer pin is installed on the groove face of groove 14
4, for preventing the lock screw 2 from deviating from, elliptical hole 16 then is processed into the left and right ends of end face, can prevent from limiting
The position installation of pin 4 is stable not to deviate from.
Embodiment described above is only that the preferred embodiment of the present invention is described, and not the scope of the present invention is carried out
Limit, on the premise of design spirit of the present invention is not departed from, those of ordinary skill in the art make to technical scheme
Various modifications and improvement, all should fall into claims of the present invention determination protection domain in.
Claims (9)
- A kind of 1. cervical vertebral fusion cage, it is characterised in that：Including lock screw (2) and fusion body (3), the fusion body (3) It is fixed to by the lock screw (2) in cervical vertebral body, and merges and multiple pilot pins (1) and multiple are provided with body (3) Spacer pin (4), the pilot pin (1) can be developed under X-ray, for controlling the implantation position of the fusion body (3), the limit Position pin (4) is used to prevent the lock screw (2) from deviating from；The fusion body (3) is refers to cyclic structure, and the intermediate throughholes for referring to cyclic structure are bone grafting hole (10), the bone grafting Fragment or powdered implant are filled with hole (10)；The finger cyclic structure includes annular leading portion and canned paragraph two parts, The annular leading portion includes upper and lower surface and side wall, and annular leading portion is provided with the first positioning hole for installing the pilot pin (1) (11), the canned paragraph is provided with the screwed hole (13) being engaged with implantation instrument, institute perpendicular to the centre position of sidewall direction Screwed hole (13) is stated with the bone grafting hole (10) to be connected；The upper and lower sides of the screwed hole (13) are symmetrically arranged with for installing institute The mounting hole (12) of lock screw (2) is stated, the outside of screwed hole (13) sets fluted (14), at left and right sides of the groove (14) Groove face on be provided with for installing the second positioning hole (15) of the spacer pin (4), the vertical cloth of second positioning hole (15) Put on the groove face at left and right sides of the groove (14), it is 2 that quantity is set on each of which groove face；The left and right of the groove (14) Both sides are provided with slotted eye (16), in the second positioning hole (15) in the setting direction and groove face of the slotted eye (16) Heart line direction is vertical.
- 2. cervical vertebral fusion cage according to claim 1, it is characterised in that：The lock screw (2) includes the head of a nail (5), nail Body (7) and nail tail (8), the periphery of the head of a nail (5) is sphere, and the bottom center of the head of a nail (5) is provided with mounting groove (6), described The surface of rivet nut (7) is provided with taper thread, and the nail tail (8) is provided with cutting edge.
- 3. cervical vertebral fusion cage according to claim 2, it is characterised in that：The mounting groove (6) is specially rectangular channel, cross Groove, flat recess or hex slot.
- 4. cervical vertebral fusion cage according to claim 1, it is characterised in that：It is described fusion body (3) ring body front end it is upper, Lower surface is provided with prismatic tooth (9), and the prismatic tooth (9) is provided with multiple and uniform side by side.
- 5. the cervical vertebral fusion cage according to claim 1 or 4, it is characterised in that：The upper and lower surface of the annular leading portion is in Between horizontal plane be symmetrical arranged for symmetrical plane, and the angle on upper and lower surface is α, and the α is arranged to 2~6 °.
- 6. cervical vertebral fusion cage according to claim 1, it is characterised in that：The mounting hole (12) is arranged to shoulder hole, institute The size of shoulder hole is stated with the head of a nail (5) of the lock screw (2) and rivet nut (7) to match.
- 7. the cervical vertebral fusion cage according to claim 1 or 6, it is characterised in that：Two mounting holes (12) are with middle water Plane is symmetrical arranged for symmetrical plane, and the axial line of mounting hole (12) and by-level face angle are β, and the angle of the β is 20~30 °.
- 8. cervical vertebral fusion cage according to claim 1, it is characterised in that：First positioning hole (11) extends vertically through described Upper and lower surface, it is 3 that it, which sets quantity, and one of them is located at the left side center of the annular leading portion, and two other is positioned at described The right end of annular leading portion.
- 9. cervical vertebral fusion cage according to claim 1, it is characterised in that：The lock screw (2) uses titanium alloy material, The fusion body (3) uses polyetheretherketonematerials materials.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201510903290.5A CN105361981B (en) | 2015-12-09 | 2015-12-09 | A kind of cervical vertebral fusion cage |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201510903290.5A CN105361981B (en) | 2015-12-09 | 2015-12-09 | A kind of cervical vertebral fusion cage |
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| Publication Number | Publication Date |
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| CN105361981A CN105361981A (en) | 2016-03-02 |
| CN105361981B true CN105361981B (en) | 2018-01-26 |
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| Application Number | Title | Priority Date | Filing Date |
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| CN201510903290.5A Active CN105361981B (en) | 2015-12-09 | 2015-12-09 | A kind of cervical vertebral fusion cage |
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Families Citing this family (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN107693169A (en) * | 2017-09-16 | 2018-02-16 | 武汉光谷北宸医疗器械有限公司 | Wedged accommodating intraocular centrum |
| CN108852563B (en) * | 2018-04-12 | 2020-09-11 | 深圳清华大学研究院 | Zero notch interbody fusion cage of way before cervical vertebra |
| CN108577911A (en) * | 2018-05-22 | 2018-09-28 | 黄建明 | A kind of riveting device for fixing high intensity suture |
| CN110101447B (en) * | 2019-05-22 | 2022-05-03 | 西安市红会医院 | Special fixing device who accords with backbone cervicothorax section anatomy and biomechanics |
Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102488574A (en) * | 2011-12-09 | 2012-06-13 | 中国科学院深圳先进技术研究院 | Interbody fusion cage |
| CN203693841U (en) * | 2014-01-07 | 2014-07-09 | 创生医疗器械（中国）有限公司 | Dynamic cervical vertebra locking interbody fusion apparatus |
| CN203841856U (en) * | 2014-04-09 | 2014-09-24 | 创辉医疗器械江苏有限公司 | Cervical vertebra fusion device |
| CN203988506U (en) * | 2014-07-18 | 2014-12-10 | 山东威高骨科材料有限公司 | Anterior cervical vertebrae zero incisura inter vertebral fusing device |
| CN205215456U (en) * | 2015-12-09 | 2016-05-11 | 胡桓宇 | Cervical vertebra fusion device |
Family Cites Families (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US9168147B2 (en) * | 2005-05-06 | 2015-10-27 | Titan Spine, Llc | Self-deploying locking screw retention device |
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2015
- 2015-12-09 CN CN201510903290.5A patent/CN105361981B/en active Active
Patent Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102488574A (en) * | 2011-12-09 | 2012-06-13 | 中国科学院深圳先进技术研究院 | Interbody fusion cage |
| CN203693841U (en) * | 2014-01-07 | 2014-07-09 | 创生医疗器械（中国）有限公司 | Dynamic cervical vertebra locking interbody fusion apparatus |
| CN203841856U (en) * | 2014-04-09 | 2014-09-24 | 创辉医疗器械江苏有限公司 | Cervical vertebra fusion device |
| CN203988506U (en) * | 2014-07-18 | 2014-12-10 | 山东威高骨科材料有限公司 | Anterior cervical vertebrae zero incisura inter vertebral fusing device |
| CN205215456U (en) * | 2015-12-09 | 2016-05-11 | 胡桓宇 | Cervical vertebra fusion device |
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| CN105361981A (en) | 2016-03-02 |
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