CN110141404A - Cervical vertebra implant system - Google Patents
Cervical vertebra implant system Download PDFInfo
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- CN110141404A CN110141404A CN201910543257.4A CN201910543257A CN110141404A CN 110141404 A CN110141404 A CN 110141404A CN 201910543257 A CN201910543257 A CN 201910543257A CN 110141404 A CN110141404 A CN 110141404A
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- cervical vertebra
- implant system
- connecting cylinder
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- 239000007943 implant Substances 0.000 title claims abstract description 143
- 230000002093 peripheral effect Effects 0.000 claims description 9
- 239000007787 solid Substances 0.000 claims 1
- 230000003014 reinforcing effect Effects 0.000 description 7
- 238000010586 diagram Methods 0.000 description 5
- 238000002513 implantation Methods 0.000 description 5
- 210000000988 bone and bone Anatomy 0.000 description 4
- 230000000694 effects Effects 0.000 description 3
- 230000004927 fusion Effects 0.000 description 3
- 230000007423 decrease Effects 0.000 description 2
- 201000010099 disease Diseases 0.000 description 2
- 208000037265 diseases, disorders, signs and symptoms Diseases 0.000 description 2
- 238000000034 method Methods 0.000 description 2
- 239000011148 porous material Substances 0.000 description 2
- 238000006467 substitution reaction Methods 0.000 description 2
- 238000001356 surgical procedure Methods 0.000 description 2
- 208000032170 Congenital Abnormalities Diseases 0.000 description 1
- 206010061619 Deformity Diseases 0.000 description 1
- 208000019505 Deglutition disease Diseases 0.000 description 1
- 206010028980 Neoplasm Diseases 0.000 description 1
- 230000009286 beneficial effect Effects 0.000 description 1
- 230000000740 bleeding effect Effects 0.000 description 1
- 238000000354 decomposition reaction Methods 0.000 description 1
- 230000007547 defect Effects 0.000 description 1
- 238000006073 displacement reaction Methods 0.000 description 1
- 238000002224 dissection Methods 0.000 description 1
- 230000010354 integration Effects 0.000 description 1
- 230000002980 postoperative effect Effects 0.000 description 1
- 230000001225 therapeutic effect Effects 0.000 description 1
Classifications
-
- 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
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- Health & Medical Sciences (AREA)
- Engineering & Computer Science (AREA)
- Biomedical Technology (AREA)
- Neurology (AREA)
- Orthopedic Medicine & Surgery (AREA)
- Cardiology (AREA)
- Oral & Maxillofacial Surgery (AREA)
- Transplantation (AREA)
- Heart & Thoracic Surgery (AREA)
- Vascular Medicine (AREA)
- Life Sciences & Earth Sciences (AREA)
- Animal Behavior & Ethology (AREA)
- General Health & Medical Sciences (AREA)
- Public Health (AREA)
- Veterinary Medicine (AREA)
- Prostheses (AREA)
Abstract
The embodiment provides a kind of cervical vertebra implant systems, for being implanted in the axis of human body between seventh cervical spine, cervical vertebra implant system includes first implant fixed for the human cervical spine support with top, bindiny mechanism, the second implant being connected and fixed for the human cervical spine with lower section；Bindiny mechanism includes the first connector and the second connector being slidably matched along preset direction, and first connector and the second connector it is relatively fixed along the direction around preset direction, first implant is connect with the first connector, and the second implant is connect with the second connector.Cervical vertebra implant system has convenient for adjusting, and the advantage that supporting & stablizing is reliable.
Description
Technical field
The present invention relates to field of medical device, in particular to a kind of cervical vertebra implant system.
Background technique
Artificial vertebral body is widely applied clinically as a kind of effective vertebral body replacements, for treatment tumor of spine,
The diseases such as deformity, wound bring great convenience, and artificial vertebral body can not only preferably restore the physiological structure of cervical vertebra and extensive
Multiple cervical curvature, also has effect outstanding to the reconstruction of spinal stability.
With the development of vertebral body reconstruction and integration technology, artificial vertebral body is doctor and patient as a kind of vertebral body replacements
Provide more therapeutic choices.
It is found in research, the artificial vertebral body of the prior art has the following disadvantages: in process of clinical application
After in traditional artificial vertebral body implantation human body, need to adjust inconvenient when the height of artificial vertebral body, artificial vertebral body
Fixed inconvenient, syncretizing effect at a specified future date is bad, it may appear that implants displacement and abjection.
Summary of the invention
The purpose of the present invention includes, for example, providing a kind of cervical vertebra implant system, can increase implant system implantation people
Stability when body, when the corresponding bearing height of height adjustment implant system according to human cervical spine, implant system is not easy to shift,
It performs the operation more smooth.
The embodiment of the present invention this can be implemented so that
The embodiment provides a kind of cervical vertebra implant systems comprising for being implanted in the axis of human body extremely
Between seventh cervical spine, cervical vertebra implant system includes:
For first implant fixed with the human cervical spine support of top, bindiny mechanism, for the human body neck with lower section
The second implant that vertebra is connected and fixed；Bindiny mechanism includes the first connector being slidably matched along preset direction and the second connection
Part, and the first connector is relatively fixed on the direction around default axis with the second connector, presets axis along preset direction
Extend, the first implant is connect with the first connector, and the second implant is connect with the second connector.
Optionally, the first connector includes connecting rod, and connecting rod is provided with the first limiting section；Second connector includes connection
Cylinder, connecting cylinder are provided with the second limiting section；Connecting rod be plugged in connecting cylinder and can sliding axially along connecting cylinder, the first limit
Portion cooperates with the second limiting section so that connector is relatively fixed along the direction around preset direction with connecting cylinder.
Optionally, the first limiting section is set as the first confined planes on the periphery of connector, and the second limiting section is position
In the second confined planes on the outer tube wall of connecting cylinder, the first confined planes are bonded with the second confined planes.
Optionally, bindiny mechanism further includes connection ring, and connection ring is bolted in outside connector, and connection ring and connecting cylinder are around default
Axis rotation connection, and connection ring and connecting cylinder are along the axially opposing fixation of connecting cylinder；When being rotatablely connected ring, connector is opposite
It is slided in connecting cylinder along the axial reciprocating of connecting cylinder.
Optionally, connection ring includes connected first connecting portion and the second connecting portion, and first connecting portion is provided with screw thread
Hole, second connecting portion are provided with mounting hole, and threaded hole is connected to mounting hole, and first connecting portion passes through threaded hole and connector spiral shell
It connects, second connecting portion is rotatablely connected by mounting hole and connecting cylinder.
Optionally, the outer peripheral surface of second connecting portion is provided with anti-skid structure.
Optionally, one end of the separate first connecting portion of second connecting portion is provided with the circumferentially-spaced arrangement along mounting hole
Multiple protrusions.
Optionally, bindiny mechanism further includes lock-screw, and lock-screw is bolted on connecting cylinder, and the end of lock-screw
It can be connected on the outer peripheral surface of connector.
Optionally, the periphery wall of connecting cylinder is equipped with planar portions, and planar portions are equipped with locking screw holes, and lock-screw is bolted in lock
In tight screw hole.
Optionally, cervical vertebra implant system further includes for the first implant and the second implant and human cervical spine is fixed
Locking piece.
The beneficial effect of the cervical vertebra implant system of the embodiment of the present invention includes, for example:
Cervical vertebra implant system provided in this embodiment, the first implant and the second implant are connected by bindiny mechanism, will
When cervical vertebra implant system is implanted into the suitable position of human cervical spine, it can be corresponded to by operation bindiny mechanism and adjust the first implant
With the position of the second implant, to guarantee that the human cervical spine of the first implant and top fits closely, and guarantee the second implantation
Body and the human cervical spine of lower section fit closely, and complete implant surgery.In practical operation, bindiny mechanism is along the flexible fortune of preset direction
Dynamic, i.e., when adjusting the position of the first implant and the second implant, the first implant and the second implant are along preset direction
It rises or decline, the first implant and the second implant will not be rotated around default axis, the human body of the first implant and top
The contact position of cervical vertebra is not easy to shift, meanwhile, the contact position of the human cervical spine of the second implant and lower section is not easy to shift, i.e., logical
When crossing bindiny mechanism and adjusting the position of the first implant and the second implant, not the first implant of malleable and the second implant with
The contact position of human cervical spine, avoids resetting, reduces operating difficulty, and guarantee the first implant and the second implant with it is right
The more perfect fitting for the human cervical spine answered, shortens the time of fusion of implant and corresponding human cervical spine, increase perform the operation at
Power.
Detailed description of the invention
In order to illustrate the technical solution of the embodiments of the present invention more clearly, below will be to needed in the embodiment attached
Figure is briefly described, it should be understood that the following drawings illustrates only certain embodiments of the present invention, therefore is not construed as pair
The restriction of range for those of ordinary skill in the art without creative efforts, can also be according to this
A little attached drawings obtain other relevant attached drawings.
Fig. 1 is the structural schematic diagram of cervical vertebra implant system provided in an embodiment of the present invention；
Fig. 2 is the decomposition texture schematic diagram of cervical vertebra implant system provided in an embodiment of the present invention；
Fig. 3 is the distressed structure schematic diagram of cervical vertebra implant system provided in an embodiment of the present invention；
Fig. 4 is the overlooking structure diagram of the first implant provided in an embodiment of the present invention；
Fig. 5 is the present invention looks up structural representation of the first implant provided in an embodiment of the present invention；
Fig. 6 is the overlooking structure diagram of the second implant provided in an embodiment of the present invention；
Fig. 7 is the present invention looks up structural representation of the second implant provided in an embodiment of the present invention.
Icon: 10- cervical vertebra implant system；The first implant of 100-；The first plate face of 110-；The second plate face of 120-；130-
One protrusion；140- first through hole；The first mounting hole of 150-；160- the first resigning recessed portion；200- bindiny mechanism；210- first connects
Fitting；211- connecting rod；The first limiting section of 211a-；211b- external screw thread；The second connector of 220-；221- connecting cylinder；221a-
One canister portion；The second canister portion of 221b-；221c- hole；230- connection ring；231- first connecting portion；231a- internal screw thread；232- second
Interconnecting piece；232a- anti-skid structure；240- reinforcing member；The second implant of 300-；310- third plate face；The 4th plate face of 320-；330-
Second protrusion；The second through-hole of 340-；The second mounting hole of 350-；360- the second resigning recessed portion；400- fixing piece.
Specific embodiment
In order to make the object, technical scheme and advantages of the embodiment of the invention clearer, below in conjunction with the embodiment of the present invention
In attached drawing, technical scheme in the embodiment of the invention is clearly and completely described, it is clear that described embodiment is
A part of the embodiment of the present invention, instead of all the embodiments.The present invention being usually described and illustrated herein in the accompanying drawings is implemented
The component of example can be arranged and be designed with a variety of different configurations.
Therefore, the detailed description of the embodiment of the present invention provided in the accompanying drawings is not intended to limit below claimed
The scope of the present invention, but be merely representative of selected embodiment of the invention.Based on the embodiments of the present invention, this field is common
Technical staff's every other embodiment obtained without creative efforts belongs to the model that the present invention protects
It encloses.
It should also be noted that similar label and letter indicate similar terms in following attached drawing, therefore, once a certain Xiang Yi
It is defined in a attached drawing, does not then need that it is further defined and explained in subsequent attached drawing.
In the description of the present invention, it should be noted that if there is the side of the instructions such as term " on ", "lower", "inner", "outside"
Position or positional relationship be based on the orientation or positional relationship shown in the drawings or the invention product using when the side usually put
Position or positional relationship, are merely for convenience of description of the present invention and simplification of the description, rather than the device or member of indication or suggestion meaning
Part must have a particular orientation, be constructed and operated in a specific orientation, therefore be not considered as limiting the invention.
In addition, being only used for distinguishing description if there is term " first ", " second " etc., it is not understood to indicate or imply phase
To importance.
It should be noted that in the absence of conflict, the feature in the embodiment of the present invention can be combined with each other.
A kind of cervical vertebra implant system is present embodiments provided, for treating human cervical spine disease, is implanted into human body, can replace
The cervical section of substitution body defect, with guarantor's normal activity.
It should be noted that cervical vertebra implant system provided in this embodiment is suitable for treating the axis of human cervical spine extremely
The cervical vertebra damaged between seventh cervical spine, in other words, the cervical vertebra implant system are used to be implanted in the axis of human body to the 7th
Between cervical vertebra, for example, after the third cervical vertebra damage of human body, by the cervical vertebra implant system be implanted to axis and fourth cervical vertebra it
Between, substitute the third cervical vertebra of damage.In other embodiments, cervical vertebra implant system can also substitute fourth cervical vertebra, fifth cervical vertebra
At least one of with sixth cervical vertebra.
Please refer to Fig. 1 and Fig. 2, cervical vertebra implant system 10 provided in this embodiment comprising for the human body neck with top
The first fixed implant 100 of vertebra support, bindiny mechanism 200, the second implantation being connected and fixed for the human cervical spine with lower section
Body 300；Bindiny mechanism 200 includes the first connector 210 and the second connector 220 being slidably matched along preset direction, and the
A connection piece 210 is relatively fixed on the direction around default axis with the second connector 220, wherein default axis is along default
Direction extends, and the first implant 100 is connect with the first connector 210, and the second implant 300 is connect with the second connector 220.
It should be noted that the human cervical spine of above-mentioned top and the human cervical spine of lower section be using seven section cervical vertebras of human body as
Reference, in general, the cervical section close to the head of human body is known as atlas, then remaining cervical section is successively towards stern
Portion's arrangement.Multiple cervical vertebras of comparison are properly termed as the cervical vertebra of top closer to the cervical vertebra of human body head.
Cervical vertebra implant system 10 provided in this embodiment, the first implant 100 and the second implant 300 pass through bindiny mechanism
200 connections can be by operating 200 come pairs of bindiny mechanism when cervical vertebra implant system 10 is implanted into the suitable position of human cervical spine
The position of the first implant 100 and the second implant 300 should be adjusted, to guarantee the human cervical spine of the first implant 100 and top
It fits closely, and guarantees that the second implant 300 and the human cervical spine of lower section fit closely, complete implant surgery.In practical behaviour
When making, bindiny mechanism 200 is along preset direction stretching motion, i.e., in the position for adjusting the first implant 100 and the second implant 300
When, the first implant 100 and the second implant 300 rise or decline along preset direction, the first implant 100 and the second implantation
Body 300 will not be rotated around preset direction, and the contact position of the first implant 100 and the human cervical spine of top is not easy to shift, together
When, the contact position of the second implant 300 and the human cervical spine of lower section is not easy to shift, i.e., adjusts first by bindiny mechanism 200
When the position of implant 100 and the second implant 300, not malleable the first implant 100 and the second implant 300 and human body neck
The contact position of vertebra, avoids resetting, reduces operating difficulty, and guarantee the first implant 100 and the second implant 300 with it is right
The more perfect fitting for the human cervical spine answered, shortens the time of fusion of implant and corresponding human cervical spine, increase perform the operation at
Power.
Please refer to Fig. 4 and Fig. 5, in the present embodiment, the first implant 100 can be plate, and the first implant 100 has phase
Pair the first plate face 110 and the second plate face 120, the first plate face 110 substantially dissects cambered surface, that is, the first plate face 110 is effectively ensured
With the lower surface anatomical compatibility of the cervical vertebra to be abutted of human body, it is ensured that the first implant 100 is realized maximum with corresponding corpus vertebrae
Contact area, reduce the concentration of stress, avoid stress shielding.Multiple first protrusions 130 are provided in first plate face 110, it is more
A interval of first protrusion 130 is covered with the first plate face 110, and each first protrusion 130 can be spininess protrusion, the first protrusion 130
Spine section deviate from the first plate face 110.Further, the first protrusion 130 can be Mitsubishi's cone cell.First implant 100 also has
There are opposite the first front side and the first rear side, the first front side is provided with the first resigning recessed portion 160 for avoiding human body canalis spinalis,
First resigning recessed portion 160 can be arc groove.
In addition, the first implant 100 is provided with the first through hole 140 for bone grafting and the first peace for grafting fastener
Fill hole 150.First through hole 140 can be cylindrical hole, and first through hole 140 is located substantially at the medium position of the first implant 100,
Optionally, first through hole 140 is stepped hole, i.e., first through hole 140 includes coaxial and the first vestibule section and the second vestibule of connection
Section, the first vestibule section are taper, and the necking end of the first vestibule section is connected to the second vestibule section, are convenient for bone grafting, and increase receiving
It is implanted into the volume of the vestibule of bone, improves degrees of fusion.The quantity of first through hole 140 can be one, it is clear that in other embodiments
In, the quantity of first through hole 140 can also be multiple.It is circular pore structure, the first peace that first mounting hole 150, which can be section,
The central axes and the first plate face 110 or the second plate face 120 for filling hole 150 tilt, and the first mounting hole 150 is located at the first plate face 110
On port compared to its another port closer to the middle part of the first implant 100.Optionally, the number of the first mounting hole 150
Amount is two, and the position of first through hole 140 is located at the centre of two the first mounting holes 150.Obviously, in other embodiments,
The quantity of one mounting hole 150 can be one, three or other quantity.
Please refer to Fig. 6-Fig. 7, in the present embodiment, the second implant 300 can be plate, and the second implant 300 has phase
Pair third plate face 310 and the 4th plate face 320, the 4th plate face 320 substantially dissects cambered surface, that is, the 4th plate face 320 is effectively ensured
With the lower surface anatomical compatibility of the cervical vertebra to be abutted of human body, it is ensured that the second implant 300 is realized maximum with corresponding corpus vertebrae
Contact area, reduce the concentration of stress, avoid stress shielding.Multiple second protrusions 330 are provided in 4th plate face 320, it is more
A interval of second protrusion 330 is covered with the 4th plate face 320, and each second protrusion 330 can be spininess protrusion, the second protrusion 330
Spine section deviate from the 4th plate face 320.Further, the second protrusion 330 can be Mitsubishi's cone cell.Second implant 300 also has
There are opposite the second front side and the second rear side, the second front side is provided with the second resigning recessed portion 360 for avoiding human body canalis spinalis,
Second resigning recessed portion 360 can be arc groove.
In addition, the second implant 300 is provided with the second through-hole 340 for bone grafting and the second peace for grafting fastener
Fill hole 350.Second through-hole 340 can be cylindrical hole, and the second through-hole 340 is located substantially at the medium position of the second implant 300.
The quantity of second through-hole 340 can be one, it is clear that in other embodiments, the quantity of the second through-hole 340 can also be more
It is a.Second mounting hole 350 can be section be circular pore structure, the central axes of the second mounting hole 350 and the 4th plate face 320 or
Person's third plate face 310 tilts, and the port that the second mounting hole 350 is located in the 4th plate face 320 is more leaned on compared to its another port
The middle part of nearly second implant 300.Optionally, the quantity of the second mounting hole 350 is two, and the position of the second through-hole 340 is located at
The centre of two the second mounting holes 350.Obviously, in other embodiments, the quantity of the second mounting hole 350 can be one, three
A or other quantity.
Referring to Fig. 1, bindiny mechanism 200 is for adjusting the first implant 100 and the second implant 300 in the present embodiment
The distance between, and abut the first implant 100 and the second implant 300 with human cervical spine respectively.Bindiny mechanism 200 includes
First connector 210, the second connector 220 and connection ring 230.
Referring to Fig. 2, optional, the first connector 210 can be middle part and be set as hollow connecting rod 211, connecting rod 211
Peripheral wall be provided with aperture, aperture can be strip-shaped hole, and aperture is connected to the middle part hollow part of connecting rod 211, the length of aperture
It is oriented parallel to the length direction of connecting rod 211.The quantity of aperture can be multiple, circumferential direction of multiple apertures along connecting rod 211
It is intervally arranged, optional in the present embodiment, the quantity of aperture is two, and two apertures are symmetrical with the central axes of connecting rod 211
Line is symmetrical arranged.The outer peripheral surface of connecting rod 211 is provided with external screw thread 211b and the first limiting section 211a, the first limiting section 211a
For the first confined planes, the first confined planes can be plane, and the first confined planes are parallel to the central axes setting of connecting rod 211.
Referring to Fig. 2, optional, the second connector 220 can be middle part and be set as hollow connecting cylinder 221, further,
Connecting cylinder 221 includes that coaxial the first canister portion 221a and the second canister portion 221b, the first canister portion 221a and the second canister portion 221b are connected to,
Outer diameter of the outer diameter of first canister portion 221a less than the second canister portion 221b, the first canister portion 221a is for installing connection ring 230；First
The barrel chamber of portion 221a and the barrel chamber of the second canister portion 221b are isometrical, in other words, the inner tube wall and the second canister portion of the first canister portion 221a
The inner tube wall of 221b is located on same cylindrical surface.It is provided on the inner tube wall of first canister portion 221a and/or the second canister portion 221b
Second limiting section, the second limiting section are the second confined planes, and the second confined planes can be plane, and the second confined planes are parallel to connecting cylinder
221 central axes setting.The peripheral wall of second canister portion 221b is equipped with hole 221c, and hole 221c can be cylindrical hole, hole
The quantity of 221c is multiple, circumferentially-spaced arrangement of multiple hole 221c along the second canister portion 221b, each hole 221c and second
The barrel chamber of canister portion 221b is connected to.
Optionally, connection ring 230 can be annulus.Further, connection ring 230 includes connected first connecting portion 231
With second connecting portion 232, first connecting portion 231 and second connecting portion 232 are annulus, first connecting portion 231 and the second connection
Portion 232 is coaxial.The outer diameter of first connecting portion 231 is less than the outer diameter of second connecting portion 232, and the internal perisporium of first connecting portion 231 is set
The matched internal screw thread 231a of external screw thread 211b for being equipped with and being arranged on the periphery wall of connecting rod 211.The periphery of second connecting portion 232
Anti-skid structure 232a is provided on wall.Optionally, anti-skid structure 232a be arranged in it is more on the periphery wall of second connecting portion 232
A tread plate, each tread plate is projected radially outward along second connecting portion 232 in the periphery wall of second connecting portion 232, multiple
Tread plate is arranged in parallel along the circumferentially-spaced of second connecting portion 232.Further, each tread plate is cuboid raised line.Or
Person, in other embodiments, anti-skid structure 232a include staggered in a plurality of recessed on the periphery wall of second connecting portion 232
Slot.Multiple grooves can be with grid-shaped staggered.
Bindiny mechanism 200 provided in this embodiment, connection ring 230 are set in outside connecting rod 211, and 211 grafting of connecting rod connects
In connect cylinder 221, the second confined planes in the first confined planes and connecting cylinder 221 in connecting rod 211 are bonded, to limit connecting rod
211 relative to connecting cylinder 221, in other words circumferentially rotating along connecting cylinder 221 passes through the first confined planes and the second confined planes
Fit structure, so that connecting rod 211 is relatively fixed on the direction around default axis with connecting cylinder 221.The of connection ring 230
The external screw thread 211b of internal screw thread 231a and connecting rod 211 on one interconnecting piece 231 are spirally connected, the second connecting portion 232 of connection ring 230
It is rotatablely connected with the first canister portion 221a of connecting cylinder 221 around preset direction, the outer peripheral surface of second connecting portion 232 non-bulging first
The outer tube wall of canister portion 221a, and second connecting portion 232 is opposite along the central axes direction of the first canister portion 221a with the first canister portion 221a
It is fixed.When operation, be rotatablely connected ring 230, connection ring 230 is spirally connected with connecting rod 211, and connection ring 230 with connecting cylinder 221 along pre-
Set direction is relatively fixed, and connecting rod 211 can be relative to connecting cylinder 221 along the opposite sliding of preset direction, to change connecting rod 211
The length of the structure constituted with connecting cylinder 221.
Referring to Fig. 3, in other embodiments, bindiny mechanism 200 further includes reinforcing member 240, reinforcing member 240 can be spiral shell
Nail.Reinforcing member 240 is screwed on the second canister portion 221b of connecting cylinder 221, and the end of reinforcing member 240 can be connected to connecting rod
On 211 outer peripheral surface.When needing the relative position of condition connecting rod 211 and connecting cylinder 221, reinforcing member 240 is unscrewed, adjusts and completes
Afterwards, then reinforcing member 240 is screwed.
Second plate face 120 of cervical vertebra implant system 10 provided in this embodiment, the first implant 100 is remote with connecting rod 211
End connection from connecting cylinder 221, the third plate face 310 of the second implant 300 and end of the connecting cylinder 221 far from connecting rod 211
Portion's connection, by adjusting the relative position of connecting rod 211 and connecting cylinder 221 so that the first implant 100 and the second implant 300
It is supported on the corresponding position of human cervical spine.Optionally, the first implant 100 and the substantially perpendicular arrangement of connecting rod 211, second
Implant 300 and the substantially perpendicular arrangement of connecting cylinder 221.
It should be noted that the first implant 100 can be integrally formed with connecting rod 211；Second implant 300 with connect
Bar 211 can be integrally formed.
Cervical vertebra implant system 10 provided in this embodiment further includes fixing piece 400, and fixing piece 400 can be screw, fixed
The quantity of part 400 is four, and two fixing pieces 400 are one group, two first of one group of fixing piece 400 and the first implant 100
Mounting hole 150 matches.Another group of fixing piece 400 is matched with two the second mounting holes 350 of the second implant 300.
Cervical vertebra implant system 10 provided in this embodiment, the first implant 100 and the second implant 300 are equipped with dissection arc
Face, it is ensured that realize maximum contact in the first plate face 110 and the second plate face 120 of artificial vertebral body surface corresponding with corpus vertebrae
Area reduces the concentration of stress, avoids stress shielding.The height that implant is adjusted by bindiny mechanism 200, enhances the strong of centrum
Degree prevents that rebound phenomenon is occurred later by external force.Cervical vertebra implant itself, which has, stablizes fixed device, avoids using auxiliary
Situations such as operating time increase caused by fixed device, wound increase, bleeding increase, stress shielding and postoperative dysphagia, is sent out
It is raw.
The above description is merely a specific embodiment, but scope of protection of the present invention is not limited thereto, any
In the technical scope disclosed by the present invention, any changes or substitutions that can be easily thought of by those familiar with the art, all answers
It is included within the scope of the present invention.Therefore, protection scope of the present invention should be with the scope of protection of the claims
It is quasi-.
Claims (10)
1. a kind of cervical vertebra implant system, which is characterized in that described for being implanted in the axis of human body between seventh cervical spine
Cervical vertebra implant system includes:
For first implant fixed with the human cervical spine support of top, bindiny mechanism, for the human cervical spine of lower section company
Connect the second fixed implant；The bindiny mechanism includes the first connector being slidably matched along preset direction and the second connection
Part, and first connector and second connector relatively fixed, the default axis on the direction around default axis
Line extends along the preset direction, and first implant is connect with first connector, second implant with it is described
The connection of second connector.
2. cervical vertebra implant system according to claim 1, it is characterised in that:
First connector includes connecting rod, and the connecting rod is provided with the first limiting section；Second connector includes connecting
Connect cylinder, the connecting cylinder are provided with the second limiting section；The connecting rod is plugged in the connecting cylinder and can be along the connecting cylinder
Slide axially, first limiting section cooperates with second limiting section so that the connector is being surrounded with the connecting cylinder
It is relatively fixed on the direction of the default axis.
3. cervical vertebra implant system according to claim 2, it is characterised in that:
First limiting section is set as the first confined planes on the periphery of the connector, and second limiting section is position
In the second confined planes on the outer tube wall of the connecting cylinder, first confined planes are bonded with second confined planes.
4. according to cervical vertebra implant system described in claim 2 or 3, it is characterised in that:
The bindiny mechanism further includes connection ring, and the connection ring is bolted in outside the connector, the connection ring and the company
Connect cylinder is rotatablely connected around the default axis, and the connection ring with the connecting cylinder along the axially opposing solid of the connecting cylinder
It is fixed；When rotating the connection ring, axial reciprocating of the connector relative to the connecting cylinder along the connecting cylinder is slided.
5. cervical vertebra implant system according to claim 4, it is characterised in that:
The connection ring includes connected first connecting portion and the second connecting portion, and the first connecting portion is provided with threaded hole,
The second connecting portion is provided with mounting hole, and the threaded hole is connected to the mounting hole, and the first connecting portion passes through described
Threaded hole is spirally connected with the connector, and the second connecting portion is rotatablely connected by the mounting hole and the connecting cylinder.
6. cervical vertebra implant system according to claim 5, it is characterised in that:
The outer peripheral surface of the second connecting portion is provided with anti-skid structure.
7. cervical vertebra implant system according to claim 5, it is characterised in that:
One end far from the first connecting portion of the second connecting portion is provided with the circumferentially-spaced arrangement along the mounting hole
Multiple protrusions.
8. cervical vertebra implant system according to claim 5, it is characterised in that:
The bindiny mechanism further includes lock-screw, and the lock-screw is bolted on the connecting cylinder, and the lock-screw
End can be connected on the outer peripheral surface of the connector.
9. cervical vertebra implant system according to claim 8, it is characterised in that:
The periphery wall of the connecting cylinder is equipped with planar portions, and the planar portions are equipped with locking screw holes, and the lock-screw is bolted in
In the locking screw holes.
10. cervical vertebra implant system according to claim 1, it is characterised in that:
The cervical vertebra implant system further includes for fixing first implant and second implant with human cervical spine
Locking piece.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
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| CN201910543257.4A CN110141404A (en) | 2019-06-21 | 2019-06-21 | Cervical vertebra implant system |
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| Application Number | Priority Date | Filing Date | Title |
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| CN201910543257.4A CN110141404A (en) | 2019-06-21 | 2019-06-21 | Cervical vertebra implant system |
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| CN110141404A true CN110141404A (en) | 2019-08-20 |
Family
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| CN201910543257.4A Pending CN110141404A (en) | 2019-06-21 | 2019-06-21 | Cervical vertebra implant system |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN111839831A (en) * | 2020-07-27 | 2020-10-30 | 北京市春立正达医疗器械股份有限公司 | Vertically implanted artificial vertebral body |
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