CN108836578A - The fixed zero incisura Invasive lumbar fusion device of anterior cervical vertebrae of elastic slice - Google Patents
The fixed zero incisura Invasive lumbar fusion device of anterior cervical vertebrae of elastic slice Download PDFInfo
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- CN108836578A CN108836578A CN201810327774.3A CN201810327774A CN108836578A CN 108836578 A CN108836578 A CN 108836578A CN 201810327774 A CN201810327774 A CN 201810327774A CN 108836578 A CN108836578 A CN 108836578A
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- China
- Prior art keywords
- fusion device
- main body
- fixing component
- device main
- cervical vertebrae
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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
- A61F2/4455—Joints for the spine, e.g. vertebrae, spinal discs for the fusion of spinal bodies, e.g. intervertebral fusion of adjacent spinal bodies, e.g. fusion cages
-
- A—HUMAN NECESSITIES
- A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
- A61F—FILTERS IMPLANTABLE INTO BLOOD VESSELS; PROSTHESES; DEVICES PROVIDING PATENCY TO, OR PREVENTING COLLAPSING OF, TUBULAR STRUCTURES OF THE BODY, e.g. STENTS; ORTHOPAEDIC, NURSING OR CONTRACEPTIVE DEVICES; FOMENTATION; TREATMENT OR PROTECTION OF EYES OR EARS; BANDAGES, DRESSINGS OR ABSORBENT PADS; FIRST-AID KITS
- A61F2/00—Filters implantable into blood vessels; Prostheses, i.e. artificial substitutes or replacements for parts of the body; Appliances for connecting them with the body; Devices providing patency to, or preventing collapsing of, tubular structures of the body, e.g. stents
- A61F2/02—Prostheses implantable into the body
- A61F2/30—Joints
- 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
- A61F2/447—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 substantially parallelepipedal, e.g. having a rectangular or trapezoidal cross-section
-
- A—HUMAN NECESSITIES
- A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
- A61F—FILTERS IMPLANTABLE INTO BLOOD VESSELS; PROSTHESES; DEVICES PROVIDING PATENCY TO, OR PREVENTING COLLAPSING OF, TUBULAR STRUCTURES OF THE BODY, e.g. STENTS; ORTHOPAEDIC, NURSING OR CONTRACEPTIVE DEVICES; FOMENTATION; TREATMENT OR PROTECTION OF EYES OR EARS; BANDAGES, DRESSINGS OR ABSORBENT PADS; FIRST-AID KITS
- A61F2/00—Filters implantable into blood vessels; Prostheses, i.e. artificial substitutes or replacements for parts of the body; Appliances for connecting them with the body; Devices providing patency to, or preventing collapsing of, tubular structures of the body, e.g. stents
- A61F2/02—Prostheses implantable into the body
- A61F2/30—Joints
- A61F2002/30001—Additional features of subject-matter classified in A61F2/28, A61F2/30 and subgroups thereof
- A61F2002/30316—The prosthesis having different structural features at different locations within the same prosthesis; Connections between prosthetic parts; Special structural features of bone or joint prostheses not otherwise provided for
- A61F2002/30535—Special structural features of bone or joint prostheses not otherwise provided for
- A61F2002/30593—Special structural features of bone or joint prostheses not otherwise provided for hollow
Abstract
The present invention relates to the fixed zero incisura Invasive lumbar fusion devices of anterior cervical vertebrae of elastic slice.Including formed can fine motion gap snap connection fusion device main body, fixing component and form angle and be plugged on flexible fastening piece in fixing component implant cavity；Fixing component be equipped with by blocks, blocks upper/lower terminal face be mutually communicated in the first implant cavity of front end face and the second implant cavity, the projection of blocks two sides is perpendicular and is inserted into the clamping limb of fusion device main body tip chute, clamping limb end vertical extended clamping hook portion, blocks plate face upper and lower end face are located at implant cavity rear portion and offer retaining sliding slot in parallel and form respectively inwards；Two flexible fastening pieces are successively implanted into vertebral bone in opposing angles through the first implant cavity and the second implant cavity, and retaining card slot cooperates on flexible fastening on piece elastic bumps and fixing component；By U-shaped frame, its biend, the sawtooth of projection, U-shaped frame waist lateral surface symmetrically open up the tip chute extended respectively inwards from outer end wall and form fusion device main body respectively.
Description
Technical field
The present invention relates to a kind of fixed zero incisura Invasive lumbar fusion devices of anterior cervical vertebrae of elastic slice.
Background technique
Zero incisura fusion device of cervical vertebra had PEEK PREVAIL, Zero~P, ROI~C, MC+, COALITION,
More than ten zero incisura cervical fusion cage product such as STALIF~C is used widely on America and Europe, Asia and other places, however state
The zero incisura fusion device product of autonomous Design of interior authorization is less, authorized and in the mostly of application copied outside external product structure
The change that shape and size carry out, the product for possessing innovation structure design are less.
CN104068949.A discloses a kind of zero incisura inter vertebral fusing device of anterior cervical vertebrae, and structure includes：PEEK thick plate-like
Fusion device and two TC4 fastening screws, thick plate-like fusion device front upper and lower sides are equipped with limit baffle, prevent from being excessively implanted into, on
Hypocentrum fixation hole is connect with two fastening screws, realizes that undercut mark product is fixed, but metal is connected through a screw thread and is fixed on
It is more serious to nonmetallic wear under stress condition on nonmetallic, it is easy to cause connection unstable, screw abjection influences product use
Service life.
CN202740160.U discloses a kind of locking-type Invasive lumbar fusion device, and positioning plate and fixing component use integral type knot
Structure is fixed on centrum by fastening screw, can be realized the effective fixed and fusion of zero incisura fusion device product, but this is specially
Benefit does not relate to positioning plate and fixing component specifically integrated connection type, and integrated connection type does not allow to be implanted into just
Phase centrum fine motion, centrum fine motion will lead to not fusion phenomenon, influence the post-operative fusion rate and practical application effect of product.
Summary of the invention
Vertebral bone realization, bullet are implanted by two flexible fastening pieces in opposing angles the object of the present invention is to provide a kind of
Property fixinig plate in elastic bumps and fixing component retaining card slot cooperate, the fixed cervical vertebra of elastic slice for preventing flexible fastening piece from deviating from
Preceding zero incisura Invasive lumbar fusion device of road.It is a further object of the present invention to provide one kind convenient for implantation vertebral bone, and inside middle portion is equipped with bullet
Property bulge-structure, tail inner side be equipped with off-position protrusion, prevent fixinig plate to be excessively implanted into the fixed anterior cervical vertebrae of elastic slice of vertebral bone
Zero incisura Invasive lumbar fusion device.
The technical solution of the invention is as follows the fixed zero incisura Invasive lumbar fusion device of anterior cervical vertebrae of elastic slice, it is special it
Be in, including formed can fine motion gap snap connection fusion device main body, fixing component and formed inclination angle be plugged on fixed structure
Flexible fastening piece in part implant cavity；
The fixing component is equipped with the first implantation being mutually communicated in front end face by blocks, blocks upper and lower end faces
Chamber and the second implant cavity, the projection of blocks two sides is vertical with the blocks and is used to be inserted into the folder of fusion device main body tip chute
Gripping arm and clamping limb end are after vertical extended clamping hook portion, blocks plate face upper and lower end face are located at implant cavity respectively inwards
Portion offers retaining sliding slot composition in parallel；
Described two flexible fastening pieces are successively implanted into vertebral bone, bullet in opposing angles through the first implant cavity and the second implant cavity
Property fixinig plate in elastic bumps and fixing component retaining card slot cooperate, prevent flexible fastening piece from deviating from；
The fusion device main body by U-shaped frame, U-shaped frame biend, symmetrically open respectively by the sawtooth of projection, U-shaped frame waist lateral surface
If the tip chute composition extended respectively inwards from outer end wall.
As preferred：The elastic bumps structure of the flexible fastening on piece is oppressed recessed flexible fastening piece inside groove by implant cavity
In, to elastic bumps end by implant cavity tail portion, elastic bumps are bounced, are snap-fited into the retaining card slot in fixing component, real
Existing flexible fastening piece is implanted into centrum, and is fixed together with fixing component.
As preferred：The flexible fastening piece sagittal facial contour airflow design mode wide in head fine stern, head are in one
Determine taper, and there are 2~3 trapezoidal or triangle implantation teeth on vertical view face, convenient for implantation vertebral bone, inside middle portion is equipped with bullet
Property bulge-structure, tail inner side be equipped with off-position protrusion, prevent fixinig plate to be excessively implanted into vertebral bone.
As preferred：The cross-sectional outling in fusion device main body band saw increment face, that is, footmark face shape is by rectangle and two sides
The trapezoidal of oval arcing is composed, and sagittal facial contour is made of first half Bionic arc and latter half plane, described imitative
Give birth to the more identical cone bone anatomical structure of arc and convenient for implantation, the universality of the latter half plane increase prosthese.
As preferred：The U-shaped frame front end of fusion device main body be equipped with arc surface, be convenient for Using prosthesis, and with centrum rear portion
Unciform process structure matches；U-shaped frame front end is equipped at least one longitudinal development needle and a lateral development needle, lateral development needle length
Slightly larger than fusion device body front end thickness, deeply the upper and lower perforation intracavitary portion 1mm~2mm of bone grafting, development are positioned while being auxiliarily fixed
Bone grafting chamber filler.
As preferred：Inclined ramp, inclined ramp of the tip chute of the fusion device main body by the inclined angle of arrival end
The recessed holding tank for fixing component clamping hook portion positioning of end vertical forms；Inclined ramp is equipped with 4 ° in the fusion device main body
~8 ° of inclination angles；The clamping limb front end gripper hook of the fixing component is correspondingly provided with 4 °~8 ° inclination angles matched with inclined ramp
Inclined surface；The inclined-plane clamping hook portion of the fixing component is promoted along the fusion device main body inclined ramp, the clamping of fixing component
Gradually flexible deformation is flared to clamping hook portion and enters holding tank arm, and clamping limb restores to the original state, and clamps fusion device main body.
As preferred：The holding tank of the fusion device main body is cylinder groove, accordingly, the clamping hook portion of the fixing component
It is shaped to deformation ellipse-circular.
As preferred：The holding tank of the fusion device main body is rectangular channel, accordingly, the clamping hook portion of the fixing component
It is shaped to rectangular block.
As preferred：Two sides of the clamping hook portion are wider than the clamping limb；Accordingly, the clamping of the tip chute
Two cell wall of slot is wider than the side wall of inclined ramp.
As preferred：The fusion device main body is made using polyetheretherketonematerials materials；The fixing component and the fastening spiral shell
Nail is by titanium alloy material.
Compared with prior art, beneficial effects of the present invention:
(1) fixed plate of the invention connect implementation with the gap of fusion device main body and is：The lesser fixed plate of cylindrical radius
Inclined-plane clamping head is promoted along fusion device main body inclined ramp, and fixing plate clamp gripping arm gradually open by flexible deformation, until clamping head enters
The biggish holding tank of cylindrical radius, clamping limb restore to the original state, and clamp fusion device main body, realize gap connection.Such gap connection
Effectively be fixedly clamped fusion device main body and fixed plate of fixed plate can be enabled relative to fusion device main body to realize a small range
Micro-shifting is dynamic and rotation, when which efficiently solves fusion device product and is just implanted into the patient, led because of patient's neck movement
The product of cause can not merge, loosen the even clinical problems such as abjection.
(2) the fastening screw compared to zero incisura fusion device CN104068949.A of tradition etc. is directly anchored in fusion device main body
Connection type, this product fastening screw flexible fastening piece connect with the fixed plate of same metal material have it is safer, firm
Solid fixed effect, connection type reliability, wear resistance, the service life of metal and metal is far longer than the gold under the conditions of
Belong to nonmetallic connection type, the complicated by postoperative such as solution traditional product connection is unreliable, screw is easily deviate from, service life is shorter
Disease problem.
(3) front end upper and lower surface of the present invention is equipped with arc surface, increases the contact area with vertebral bone, improves post-operative fusion
Rate, and convenient for implantation, especially lower end surface arc surface design is the distinctive frame mode of this product, can be reduced in operation under
The resection of uncus of vertebral body lug structure reduces product sinking risk, and can simplify surgical procedure, meets doctor's requirement.
(4) longitudinal development needle relative to traditional fusion device product, it is horizontal that this product is equipped with one again on the basis of longitudinal development needle
To development needle, be both able to achieve product and developed in MRI image alignment function, by can the filler intracavitary to bone grafting play fixed work
With effectively avoiding in traditional product filler from deviating from problem.
(5) the fixing component is fastened in the upper and lower vertebral bone of human body by flexible fastening piece, by fixing component
Retaining card slot engage with flexible fastening on piece elastic bumps prevent only flexible fastening piece deviate under stress, guarantee produce
The postoperative reliability of product.
Detailed description of the invention
Fig. 1 is the fixed zero incisura Invasive lumbar fusion device schematic perspective view of anterior cervical vertebrae of elastic slice of the present invention；
Fig. 2 is the top view of the fixed zero incisura Invasive lumbar fusion device of anterior cervical vertebrae of elastic slice of the present invention；
Fig. 3 is the structural schematic diagram of the fixed zero incisura Invasive lumbar fusion device fixing component of anterior cervical vertebrae of elastic slice of the present invention；
Fig. 4 is the structural representation of the fixed zero rotatable fixinig plate of incisura Invasive lumbar fusion device of anterior cervical vertebrae of elastic slice of the present invention
Figure；
Fig. 5 is the first implementation of the fixed zero incisura Invasive lumbar fusion device of anterior cervical vertebrae of elastic slice of the present invention and fixing component cooperation
Example sagittal facial contour left view；
Fig. 6 is the vertical of the fixed zero incisura Invasive lumbar fusion device first embodiment fusion device main body of anterior cervical vertebrae of elastic slice of the present invention
Body figure；
Fig. 7 is that the sagittal facial contour of the fixed zero incisura Invasive lumbar fusion device second embodiment of anterior cervical vertebrae of elastic slice of the present invention is left
View；
Fig. 8 is the vertical of the fixed zero incisura Invasive lumbar fusion device second embodiment fusion device main body of anterior cervical vertebrae of elastic slice of the present invention
Body figure；
Fig. 9 is that the sagittal facial contour of the fixed zero incisura Invasive lumbar fusion device 3rd embodiment of anterior cervical vertebrae of elastic slice of the present invention is left
View；
Figure 10 is the fixed zero incisura Invasive lumbar fusion device 3rd embodiment fusion device main body of anterior cervical vertebrae of elastic slice of the present invention
Perspective view；
Figure 11 is the sagittal facial contour of the fixed zero incisura Invasive lumbar fusion device fourth embodiment of anterior cervical vertebrae of elastic slice of the present invention
Left view；
Figure 12 is the fixed zero incisura Invasive lumbar fusion device fourth embodiment fusion device main body of anterior cervical vertebrae of elastic slice of the present invention
Perspective view；
Figure 13 is the sagittal facial contour of fixed the 5th embodiment of zero incisura Invasive lumbar fusion device of anterior cervical vertebrae of elastic slice of the present invention
Left view；
Figure 14 is fixed the 5th embodiment fusion device main body of zero incisura Invasive lumbar fusion device of anterior cervical vertebrae of elastic slice of the present invention
Perspective view.
Primary clustering symbol description：
| Fusion device main body 1 | U-shaped frame 11 | Bionic arc 111 | Plane 112 |
| Sawtooth 12 | Tip chute 13 | Inclined ramp 131 | Landslide 132 |
| Holding tank 133 | Longitudinal development needle 14 | Lateral development needle 15 | Arc surface 16 |
| Fixing component 2 | Blocks 21 | First implant cavity 211 | Second implant cavity 212 |
| Retaining card slot 213 | Clamping limb 22 | Clamp hook portion 23 | Flexible fastening piece 3 |
| It is implanted into tooth 31 | Elastic bumps 32 | Off-position protrusion 33 | Inside groove 34 |
Specific embodiment
The present invention is further detailed in conjunction with the accompanying drawings below：
Fig. 1 to Fig. 4 shows one embodiment of the invention.
Refering to Figure 1, the fixed zero incisura Invasive lumbar fusion device of anterior cervical vertebrae of elastic slice, including being formed can be between fine motion
Fusion device main body 1, fixing component 2 and the formation angle that gap snaps connection are plugged on the flexible fastening in 2 implant cavity of fixing component
Piece 3.
It please refers to shown in Fig. 3, the fixing component 2 is equipped with and is mutually communicated by blocks 21,21 upper/lower terminal face of blocks
It is vertical simultaneously in the first implant cavity 211 of front end face and the second implant cavity 212,21 two sides projection of blocks and the blocks 21
For being inserted into clamping limb 22 and the vertical extended clamping respectively inwards of 22 end of clamping limb of fusion device main body tip chute 13
Hook portion 23, the 21 upper and lower end face in plate face position of blocks are located at implant cavity rear portion and offer and first implant cavity 211 and the second plant
Enter chamber 212 and distinguishes the parallel composition of retaining sliding slot 213.
It please refers to shown in Fig. 1, Fig. 3, Fig. 4, described two flexible fastening pieces 3 are successively planted through the first implant cavity 211 and second
Enter chamber 212 and be implanted into vertebral bone in opposing angles, elastic bumps 32 are matched with retaining card slot 213 in fixing component 2 in flexible fastening piece 3
It closes, prevents flexible fastening piece 3 from deviating from.
It please refers to shown in Fig. 4, the 3 sagittal facial contour of the flexible fastening piece airflow design mode wide in head fine stern, head
Portion is in certain taper, and have on vertical view face 2~3 can it is trapezoidal or can triangle implantation tooth 31, convenient for implantation vertebral bone, in
32 structure of elastic bumps is equipped on the inside of portion, tail inner side is equipped with off-position protrusion 33, prevents the excessively implantation vertebral bone of fixinig plate 3；Institute
It states flexible fastening piece 3 and vertebral bone is entered by the first implant cavity 211 in fixing component 2 and the second implant cavity 212, at this point, elastic
32 structure of elastic bumps on fixinig plate 3 is in recessed flexible fastening piece inside groove 34 by implant cavity compressing, to elastic bumps 32
End is bounced by 212 tail portion of the first implant cavity 211 and the second implant cavity, elastic bumps 32, snap-fits into stopping in fixing component 2
It moves back in card slot 213, realizes that flexible fastening piece 3 is implanted into centrum, and be fixed together with fixing component 2.
It please refers to shown in Fig. 1, Fig. 2, the fusion device main body 1 is by U-shaped frame 11, the saw of 11 biend of U-shaped frame difference projection
Tooth 12,11 waist lateral surface of U-shaped frame symmetrically open up the tip chute 13 extended respectively inwards from outer end wall and form.Fusion device main body
1 is made using polyetheretherketonematerials materials, and the fixing component 2 is made using titanium alloy material.
It please referring to shown in Fig. 2, it is 0.5mm~2mm arc surface 16 that U-shaped 11 front end of frame of fusion device main body, which is equipped with radius,
Convenient for Using prosthesis, and match with centrum rear portion unciform process structure；U-shaped 11 front end of frame sets that there are two longitudinal development needle 14 and one
Lateral development needle 15, lateral 15 length of development needle are slightly larger than 1 nose thickness of fusion device main body, and deeply upper and lower perforation bone grafting is intracavitary
Portion 1mm~2mm, development position while bone grafting chamber filler are auxiliarily fixed.
Fig. 5, Fig. 6 show second embodiment of the invention.
It please refers to shown in Fig. 5, Fig. 6, cross-sectional outling of the fusion device main body 1 with 12 end face of sawtooth, that is, footmark face shape
By trapezoidal being composed of rectangle and two sides oval arcing, sagittal facial contour is by first half Bionic arc 111 and latter half
Plane 112 constitute, the more identical cone bone anatomical structure of the Bionic arc 111 and convenient for implantation, the latter half plane 112
Increase the universality of prosthese.
The difference of the present embodiment and aforementioned first embodiment is the holding tank of the tip chute 13 of the fusion device main body 1
133 be cylinder groove, and accordingly, the clamping hook portion 23 of the fixing component 2 is shaped to cylindrical piece；The cylinder groove of tip chute 13
133 length, width and height sizes are more bigger than inclined-plane clamping 23 length, width and height size of hook portion, and fixing component 2 can be real relative to fusion device main body 1
Existing front-rear direction, the movement of up and down direction and the rotation around fusion device main body 1.When the inclined-plane of fixing component 2 clamps hook portion 23
Along the inclined ramp 13 of fusion device main body 1, from previous dynasty pusher into, the clamping limb 22 of fixing component 2, gradually flexible deformation is opened, until
It clamps hook portion 23 and enters cylinder groove 133, clamping limb 22 restores to the original state, to clamp fusion device main body 1.Inclined ramp 131 inclines
Angle be 4 °~8 °, clamping 23 end of hook portion be equipped with 4 °~8 ° of inclination angle inclined surface or radius 1.5mm~2.5mm circle
Angle.
It please refers to shown in Fig. 5,1 front end of fusion device main body is equipped with radius in the arc surface 16 of 0.5mm~2mm, is convenient for
Using prosthesis, and match with centrum rear portion unciform process structure.Other structures are identical, omit herein.
Fig. 7, Fig. 8 show third embodiment of the invention.
It please refers to shown in Fig. 7, Fig. 8, the difference of the present embodiment and aforementioned second embodiment is the fusion device main body 1
13 holding tank 133 of tip chute is rectangular channel, and accordingly, the clamping hook portion 23 of the fixing component 2 is shaped to rectangular block；It is described
Inclined ramp 131 is equipped with 4 °~8 ° inclination angles of front-rear direction in fusion device main body 1；22 front end of clamping limb of the fixing component 2 presss from both sides
Tenaculum 23 is correspondingly provided with the inclined surface at 4 °~8 ° inclination angles matched with inclined ramp 131.The rectangle holding tank of tip chute 13
133 length, width and height sizes are more bigger than inclined-plane clamping 23 length, width and height size of hook portion.
It is then promoted along 1 inclined ramp 131 of fusion device main body from preceding when the inclined-plane of fixing component 2 clamps hook portion 23, it is fixed
2 clamping limb 22 of component gradually open by flexible deformation, until clamping hook portion 23 enters rectangle holding tank 133, clamping limb 22 restores to the original state,
To clamp fusion device main body 1.Other structures are identical, omit herein.
Fig. 9, Figure 10 show the 4th embodiment of the invention.
It please refers to shown in Fig. 9, Figure 10, the difference of the present embodiment and aforementioned first embodiment is the fusion device main body 1
Upper inclined ramp 131 is equipped with 4 °~8 ° inclination angles of upper and lower direction, and the 22 front end gripper hook 23 of clamping limb of the fixing component 2 is corresponding
Equipped with 4 ° matched with inclined ramp 131~inclined surface at 8 ° of inclination angles；133 length, width and height size of rectangle holding tank is clamped than inclined-plane
23 length, width and height size of hook portion is bigger.
It is promoted from top to bottom when the inclined-plane of fixing component 2 clamps hook portion 23 along 1 inclined ramp 131 of fusion device main body, it is fixed
2 clamping limb 22 of component gradually open by flexible deformation, until clamping hook portion 23 enters rectangle holding tank 133, clamping limb 23 restores to the original state,
To clamp fusion device main body 1.Other structures are identical, omit herein.
Figure 11, Figure 12 show the 5th embodiment of the invention.
It please refers to shown in Figure 11, Figure 12, the difference of the present embodiment and aforementioned first embodiment is the fixing component 2
Two sides of clamping hook portion 23 are wider than the clamping limb 22 of the fusion device main body 1；Accordingly, the holding tank of the tip chute 13
133 2 cell walls are wider than the side wall of inclined ramp 131.
It is then promoted along 1 inclined ramp 131 of fusion device main body from preceding when the inclined-plane of the fixing component 2 clamps hook portion 23,
1 inclined ramp 131 of fusion device main body is by being elastically compressed, until clamping hook portion 23 enters trapezoidal holding tank 133, inclined ramp 131
It restores to the original state, to clamp fusion device main body 1.Other structures are identical, omit herein.
Figure 13, Figure 14 show the 6th embodiment of the invention.
It please refers to shown in Figure 13, Figure 14, the difference of the present embodiment and aforementioned first embodiment is the fusion device main body 1
Sliding slot 13 from slideway 131, the inclined overturning angle of 131 middle part projection of slideway and to inner section be right angled triangle landslide 132
Composition；Accordingly, 22 inner wall of clamping limb of the fixing component 2 is in the sliding slot of end inclined overturning angle from outside to inside (in figure
Do not show), 22 inner wall of clamping limb positioned at sliding slot (not shown) rear portion it is recessed for being fitted into fusion device main body landslide
132 embeded slot (not shown), the clamping limb 22 during implementation gradually open until landslide 132 enters by flexible deformation
Embeded slot.Other structures are identical, omit herein.
The foregoing is merely presently preferred embodiments of the present invention, all equivalent changes done according to scope of the invention as claimed with
Modification, should all belong to the covering scope of the claims in the present invention.
Claims (10)
1. a kind of fixed zero incisura Invasive lumbar fusion device of anterior cervical vertebrae of elastic slice, which is characterized in that can fine motion ipt card including being formed
The fusion device main body, fixing component and formation inclination angle for detaining connection are plugged on the flexible fastening piece in fixing component implant cavity；
The fixing component by blocks, blocks upper and lower end faces be equipped be mutually communicated in front end face the first implant cavity and
Second implant cavity, the projection of blocks two sides is vertical with the blocks and is used to be inserted into the clamping of fusion device main body tip chute
Vertical extended clamping hook portion, blocks plate face upper and lower end face are located at implant cavity rear portion respectively inwards for arm and clamping limb end
Offer retaining sliding slot composition in parallel；
Described two flexible fastening pieces are successively implanted into vertebral bone in opposing angles through the first implant cavity and the second implant cavity, and elasticity is solid
Elastic bumps cooperate with retaining card slot in fixing component on stator, prevent flexible fastening piece from deviating from；
The fusion device main body by U-shaped frame, U-shaped frame biend respectively the sawtooth of projection, U-shaped frame waist lateral surface symmetrically open up from
The tip chute composition that outer end wall extends respectively inwards.
2. the fixed zero incisura Invasive lumbar fusion device of anterior cervical vertebrae of elastic slice according to claim 1, which is characterized in that the bullet
Property fixinig plate on elastic bumps structure oppressed in recessed flexible fastening piece inside groove by implant cavity, pass through plant to elastic bumps end
Entering chamber tail portion, elastic bumps bounce, and snap-fit into the retaining card slot in fixing component, realize that flexible fastening piece is implanted into centrum, and
It is fixed together with fixing component.
3. the fixed zero incisura Invasive lumbar fusion device of anterior cervical vertebrae of elastic slice according to claim 2, which is characterized in that the bullet
Property fixinig plate sagittal facial contour in the wide airflow design mode of head fine stern, head is in certain taper, and have on vertical view face 2~
3 trapezoidal or triangle implantation teeth, convenient for implantation vertebral bone, inside middle portion is equipped with elastic bumps structure, and tail inner side is equipped with
Off-position protrusion, prevents fixinig plate to be excessively implanted into vertebral bone.
4. the fixed zero incisura Invasive lumbar fusion device of anterior cervical vertebrae of elastic slice according to claim 1, which is characterized in that described to melt
Cross-sectional outling, that is, footmark face the shape in clutch main body band saw increment face by rectangle and two sides oval arcing trapezoidal being composed,
Sagittal facial contour is made of first half Bionic arc and latter half plane, the more identical cone bone dissection knot of Bionic arc
Structure and convenient for implantation, the latter half plane increases the universality of prosthese.
5. the fixed zero incisura Invasive lumbar fusion device of anterior cervical vertebrae of elastic slice according to claim 1, which is characterized in that described to melt
The U-shaped frame front end of clutch main body is equipped with arc surface, is convenient for Using prosthesis, and match with centrum rear portion unciform process structure；U-shaped frame front end
Equipped at least one longitudinal development needle and a lateral development needle, lateral development needle length is thick slightly larger than fusion device body front end
It spends, deeply the upper and lower perforation intracavitary portion 1mm~2mm of bone grafting, development position while bone grafting chamber filler are auxiliarily fixed.
6. the fixed zero incisura Invasive lumbar fusion device of anterior cervical vertebrae of elastic slice according to claim 1, which is characterized in that described to melt
The tip chute of clutch main body is recessed for fixing component folder by inclined ramp, the inclined ramp end vertical at the inclined angle of arrival end
The holding tank composition of tenaculum portion positioning；Inclined ramp is equipped with 4 °~8 ° inclination angles in the fusion device main body；The fixing component
Clamping limb front end gripper hook is correspondingly provided with the inclined surface at 4 °~8 ° inclination angles matched with inclined ramp；The fixing component it is oblique
Face clamping hook portion is promoted along the fusion device main body inclined ramp, and gradually flexible deformation is flared to clamping to the clamping limb of fixing component
Hook portion enters holding tank, and clamping limb restores to the original state, and clamps fusion device main body.
7. the fixed zero incisura Invasive lumbar fusion device of anterior cervical vertebrae of elastic slice according to claim 6, which is characterized in that described to melt
The holding tank of clutch main body is cylinder groove, and accordingly, the clamping hook portion of the fixing component is shaped to deformation cylindrical body.
8. the fixed zero incisura Invasive lumbar fusion device of anterior cervical vertebrae of elastic slice according to claim 6, which is characterized in that described to melt
The holding tank of clutch main body is rectangular channel, and accordingly, the clamping hook portion of the fixing component is shaped to rectangular block.
9. the fixed zero incisura Invasive lumbar fusion device of anterior cervical vertebrae of elastic slice according to claim 1, which is characterized in that the folder
Two sides in tenaculum portion are wider than the clamping limb；Accordingly, two cell wall of holding tank of the tip chute is wider than inclined ramp
Side wall.
10. the fixed zero incisura Invasive lumbar fusion device of anterior cervical vertebrae of elastic slice according to claim 1, which is characterized in that described
Fusion device main body is made using polyetheretherketonematerials materials；The fixing component and the fastening screw are by titanium alloy material.
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