CN107349033A - Adjustable intervertebral fusion device - Google Patents
Adjustable intervertebral fusion device Download PDFInfo
- Publication number
- CN107349033A CN107349033A CN201710432386.7A CN201710432386A CN107349033A CN 107349033 A CN107349033 A CN 107349033A CN 201710432386 A CN201710432386 A CN 201710432386A CN 107349033 A CN107349033 A CN 107349033A
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- fixed structure
- rear portion
- fusion device
- anterior
- portion fixed
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- 230000004927 fusion Effects 0.000 title claims abstract description 125
- 238000010276 construction Methods 0.000 claims abstract description 76
- 210000000988 bone and bone Anatomy 0.000 claims abstract description 36
- 238000002513 implantation Methods 0.000 claims abstract description 33
- 230000008602 contraction Effects 0.000 claims description 12
- 241000276425 Xiphophorus maculatus Species 0.000 claims description 11
- 230000000694 effects Effects 0.000 claims description 11
- 239000004744 fabric Substances 0.000 claims description 7
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- 238000007906 compression Methods 0.000 claims 2
- 238000000034 method Methods 0.000 abstract description 10
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- 238000003780 insertion Methods 0.000 abstract description 2
- 230000037431 insertion Effects 0.000 abstract description 2
- 238000006073 displacement reaction Methods 0.000 abstract 1
- 208000015122 neurodegenerative disease Diseases 0.000 abstract 1
- 230000002980 postoperative effect Effects 0.000 abstract 1
- 230000003319 supportive effect Effects 0.000 abstract 1
- 108010048734 sclerotin Proteins 0.000 description 11
- 238000010586 diagram Methods 0.000 description 10
- 239000007943 implant Substances 0.000 description 6
- 238000005516 engineering process Methods 0.000 description 4
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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
-
- 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
-
- A—HUMAN NECESSITIES
- A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
- A61F—FILTERS IMPLANTABLE INTO BLOOD VESSELS; PROSTHESES; DEVICES PROVIDING PATENCY TO, OR PREVENTING COLLAPSING OF, TUBULAR STRUCTURES OF THE BODY, e.g. STENTS; ORTHOPAEDIC, NURSING OR CONTRACEPTIVE DEVICES; FOMENTATION; TREATMENT OR PROTECTION OF EYES OR EARS; BANDAGES, DRESSINGS OR ABSORBENT PADS; FIRST-AID KITS
- A61F2/00—Filters implantable into blood vessels; Prostheses, i.e. artificial substitutes or replacements for parts of the body; Appliances for connecting them with the body; Devices providing patency to, or preventing collapsing of, tubular structures of the body, e.g. stents
- A61F2/02—Prostheses implantable into the body
- A61F2/30—Joints
- A61F2/30721—Accessories
-
- A—HUMAN NECESSITIES
- A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
- A61F—FILTERS IMPLANTABLE INTO BLOOD VESSELS; PROSTHESES; DEVICES PROVIDING PATENCY TO, OR PREVENTING COLLAPSING OF, TUBULAR STRUCTURES OF THE BODY, e.g. STENTS; ORTHOPAEDIC, NURSING OR CONTRACEPTIVE DEVICES; FOMENTATION; TREATMENT OR PROTECTION OF EYES OR EARS; BANDAGES, DRESSINGS OR ABSORBENT PADS; FIRST-AID KITS
- A61F2/00—Filters implantable into blood vessels; Prostheses, i.e. artificial substitutes or replacements for parts of the body; Appliances for connecting them with the body; Devices providing patency to, or preventing collapsing of, tubular structures of the body, e.g. stents
- A61F2/02—Prostheses implantable into the body
- A61F2/30—Joints
- A61F2002/30001—Additional features of subject-matter classified in A61F2/28, A61F2/30 and subgroups thereof
- A61F2002/30316—The prosthesis having different structural features at different locations within the same prosthesis; Connections between prosthetic parts; Special structural features of bone or joint prostheses not otherwise provided for
- A61F2002/30329—Connections or couplings between prosthetic parts, e.g. between modular parts; Connecting elements
- A61F2002/30405—Connections or couplings between prosthetic parts, e.g. between modular parts; Connecting elements made by screwing complementary threads machined on the parts themselves
-
- A—HUMAN NECESSITIES
- A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
- A61F—FILTERS IMPLANTABLE INTO BLOOD VESSELS; PROSTHESES; DEVICES PROVIDING PATENCY TO, OR PREVENTING COLLAPSING OF, TUBULAR STRUCTURES OF THE BODY, e.g. STENTS; ORTHOPAEDIC, NURSING OR CONTRACEPTIVE DEVICES; FOMENTATION; TREATMENT OR PROTECTION OF EYES OR EARS; BANDAGES, DRESSINGS OR ABSORBENT PADS; FIRST-AID KITS
- A61F2/00—Filters implantable into blood vessels; Prostheses, i.e. artificial substitutes or replacements for parts of the body; Appliances for connecting them with the body; Devices providing patency to, or preventing collapsing of, tubular structures of the body, e.g. stents
- A61F2/02—Prostheses implantable into the body
- A61F2/30—Joints
- A61F2002/30001—Additional features of subject-matter classified in A61F2/28, A61F2/30 and subgroups thereof
- A61F2002/30316—The prosthesis having different structural features at different locations within the same prosthesis; Connections between prosthetic parts; Special structural features of bone or joint prostheses not otherwise provided for
- A61F2002/30329—Connections or couplings between prosthetic parts, e.g. between modular parts; Connecting elements
- A61F2002/30428—Connections or couplings between prosthetic parts, e.g. between modular parts; Connecting elements made by inserting a protrusion into a slot
-
- 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
- A61F2002/30537—Special structural features of bone or joint prostheses not otherwise provided for adjustable
-
- 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
-
- 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
- A61F2002/30594—Special structural features of bone or joint prostheses not otherwise provided for slotted, e.g. radial or meridian slot ending in a polar aperture, non-polar slots, horizontal or arcuate slots
-
- 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
- A61F2002/30621—Features concerning the anatomical functioning or articulation of the prosthetic joint
- A61F2002/30622—Implant for fusing a joint or bone material
Abstract
The present invention relates to a kind of adjustable intervertebral fusion device, belong to the human body Insertion technical field of medicine equipment.It includes anterior fixed structure, rear portion fixed structure, elastic construction and fastening structure, elastic construction is between fixed structure, after anterior fixed structure is connected with rear portion fixed structure by elastic construction, can also further it be fastened integrally by built-in structure in implantation process.The achievable fusion device of the present invention is implanted into intervertenral space under less otch or passage.There is fusion device and institute's bone grafting matter and conical surface contact area is big, stress distribution is wide, supportive is strong, available for cases such as neck lumbar degenerative diseases.Solving the various Invasive lumbar fusion devices used at present can not be implanted under less otch or minimally invasive passage, or postoperative the problem of fusion device displacement, abjection, collapse of vertebra, higher institute's bone grafting matter disunion rate occurs.
Description
Technical field
The present invention relates to a kind of adjustable intervertebral fusion device, belong to the human body Insertion technical field of medicine equipment.
Background technology
At present, spinal fusion techniques achieve the effect of preferable in terms for the treatment of neck pain in the back and neck lumbar instability, are treatments
The unstable ordinary operation of degenerative disc disease, spondylolishesis, spinal segments.In recent years, Invasive lumbar fusion device implantation
Just carry out extensively, clinically obtain certain satisfaction rate, but corresponding complication can not be ignored, such as the component of fusion device
Release, fusion device is shifted, deviates from, collapsed, or collapse of vertebra, bone grafting disunion, and because fusion device cross section is excessive and corresponding
Ground causes in art that otch exposure is excessive, implant procedure is not convenient or injured nerve, and can not be implanted under minimally invasive passage etc.；Have
A little doctors are implanted into a large amount of bones to obtain good bone grafting syncretizing effect after improving bone grafting between centrum is gone in fusion device implantation
Matter, but after fusion device implantation, these sclerotin can not all be gathered in the middle part of centrum and obtain preferable implantation position, from
And fixed effect and fusion rate of bone graft are improved, and during fusion device is implanted into, the sclerotin that there is quite a few to be implanted into
It is fused device to be extruded into the edge of centrum or be extruded outside intervertenral space, loses its due support and fusion, and make
Wasted into substantial amounts of sclerotin.It is for example, a kind of open（Bulletin）Number be US 2015230935A1 patented technology, what it was used
Component is excessive, has the risk released between component；And implant procedure is complicated, is led after implantation because of component stress skewness
The problem of causing fixed effect bad.In addition the fusion device bone grafting volume is smaller, is unfavorable for a large amount of bone graftings, i.e., can not be by fusion device
Between institute's bone grafting matter and upper and lower centrum mutual panelling and fusion rate of bone graft can not be correspondingly improved again.
After Invasive lumbar fusion device implantation, its fusion device can only provide initial interbody stabilizer in itself, and the interbody stabilizer in later stage is still
It is so integral by intervertebral institute bone grafting matter and upper and lower centrum length, that is, obtains Bony union, it is steady that lasting intervertebral can be obtained
It is fixed.And an important factor for improving fusion rate of bone graft is that bone grafting area is big, bone grafting amount is big, it is close to be contacted between implantation sclerotin, and
Contacted between be implanted into sclerotin and upper and lower centrum close.Therefore bone grafting volume is improved, increases bone grafting amount and makes be implanted into osseous granules
Or the mutual panelling of bone piece and contacted between upper and lower centrum close particularly important.In view of this, how Invasive lumbar fusion device is enable to exist
Small otch or passage is implanted into, and can obtain larger bone grafting volume and larger Area of bearing after being implanted into, and will can be planted
Sclerotin whole panelling, utilize, do not cause bone grafting to waste, and the component that can be reduced after fusion device implantation releases, or fusion device is planted
Enter backward shift, deviate from, collapse or the complication, the just expectation as recent domestic scholars such as collapse of vertebra, neurotrosis
With the hot subject of research.Some scholars are based on experimental analysis when the shape of fusion device similar " ten " font or Triangle-Profile
When, its stress distribution is more uniformly distributed, and the possibility of prosthese abjection is smaller, and it is lower the risk of collapse of vertebra occur, but integral type
The maximum cross section of " ten " font or triangle fusion device is wide, and its implant procedure is difficult, and wound is big in implantation process, can not
It is implanted under minimally invasive passage, also has not seen such product on the market at present.
The content of the invention
It is an object of the present invention to be directed to above-mentioned the deficiencies in the prior art, there is provided it is a kind of by fixed structure, elastic construction and
Fastening structure forms, and has larger bone grafting volume, can be implanted into small otch or passage, can be automatic after intervertenral space is implanted into
Outwards flick, or increase the transverse width of fusion device, and the sclerotin that increase is be implanted into by adjusting the modes such as fastening structure
Contact, Area of bearing with centrum, and improve its fixation and the adjustable intervertebral fusion device of bone grafting effect.
The present invention is to realize above-mentioned purpose by the following technical solutions：
The adjustable intervertebral fusion device includes fixed structure, elastic construction and fastening structure, it is characterised in that：Fixed structure is divided into
Anterior fixed structure and rear portion fixed structure, are connected between anterior fixed structure and rear portion fixed structure by elastic construction, preceding
Portion's fixed structure and rear portion fixed structure are mutually locked by fastening structure；Described anterior fixed structure and/or rear portion are fixed
Structure is one or more, and described fastening structure is affixed integrally or by being assembled integrally with fixed structure.
Described elastic construction is continuous platy structure, fenestral fabric, hinge arrangement, dual panel-type structure or occlusion knot
Structure, its elastic construction are in the preoperative contraction state, and it is in softened state to be pressurized after implantation in the presence of fastening structure, its tabular knot
Structure is curved, waveform or straight.
Described fastening structure is thread set structure, and one end of fixed structure is equipped with thread bush, fixed structure it is another
End is set with the threaded rod to match with thread bush, makes anterior fixed structure and rear portion fixed structure mutual by tightening threaded rod
It is close, and elastic construction is extruded, make elastic construction be flared out being in softened state after being pressurized.
Described anterior fixed structure and rear portion fixed structure are provided with plate and slot, are corresponded to respectively on plate and slot
Be provided with ratchet, when anterior fixed structure and rear portion fixed structure are joined together by fastening structure, plate and slot
Interior ratchet is mutually twisted together, by anterior fixed structure and the further fixed locking of rear portion fixed structure.
Described anterior fixed structure and rear portion fixed structure are provided with jack, and the jack of rear portion fixed structure is through hole, preceding
The jack of portion's fixed structure is through hole or blind hole, and anterior fixed structure is corresponding with the jack of rear portion fixed structure.
Described adjustable intervertebral fusion device is equipped with ad hoc holder, and holder is by holder baffle plate, inserted link and handle
Hold handle composition, holder baffle plate and inserted link at right angles or are bordering on right angle and connected, and holding handle is hollow form, and holder is in use, handle
The jack of the inserted link of holder from rear portion fixed structure is inserted into the jack of anterior fixed structure, and anterior fixed structure and rear portion are consolidated
Determine structure to hold temporarily in one plane.
Described elastic construction is continuous platy structure, fenestral fabric, hinge arrangement, dual panel-type structure or occlusion knot
Structure, its elastic construction is in the preoperative softened state, in the presence of fastening structure, is adjusted to contraction state in the preoperative, is implanted into art
It is afterwards softened state, its platy structure is curved, waveform or straight.
Holder through hole is provided with the elastic construction of described undulate, elastic construction is inwardly extruded to certain
After degree, the inserted link of holder can be plugged into holder through hole, elastic construction is remained retracted state, and by fixed structure
Hold in one plane.
Described anterior fixed structure is in U-typed, and rear portion fixed structure is elongate body, and the middle part of rear portion fixed structure is set
There is elongated through hole, fixed plate is provided with elongated through hole.
Described fastening structure is thread set structure, is provided with internal thread through hole on anterior fixed structure, rear portion is fixed
Tie down screw is equipped with by hole clipping activity in structure, the front end of tie down screw contradicts with anterior fixed structure and connected in art, before making
Portion's fixed structure and rear portion fixed structure are separated from each other, so that elastic construction remains retracted state；Adjustable intervertebral fusion device
After implantation, tie down screw is tightened, makes anterior fixed structure and rear portion fixed structure close to each other, by anterior fixed structure and rear portion
Fixed structure further fixed locking, makes elastic construction keep softened state.
Described anterior fixed structure and rear portion fixed structure are in U-typed respectively, and the inner surface of anterior fixed structure is with after
Unidirectional ratchet, unidirectional ratchet and the rear portion fixed structure of anterior fixed structure are respectively arranged with the outer surface of portion's fixed structure
Unidirectional ratchet engagement connects, and when unidirectional ratchet is set on the inner surface and rear portion fixed structure of anterior fixed structure, need to use special
If implanting instrument complete adjustable intervertebral fusion device implantation work.
Described implanting instrument is made up of center bolt, outer sleeve and conflict sleeve, and center bolt passes through rear portion fixed knot
It is threadedly coupled after structure with anterior fixed structure, outer sleeve is movably installed with center bolt, overcoat tube outer surface is fixed with rear portion
Structure tail portions through hole whorl is connected, and the front end of rear portion fixed structure is clamped in art, makes its unidirectional ratchet with anterior fixed structure
Separation；Outer sleeve is then tightened, makes anterior fixed structure keep separating with rear portion fixed structure, and then makes elastic construction in contraction
State；Then the adjustable intervertebral fusion device is implanted into；Remove outer sleeve, now elastic construction by its elastical retraction into strutting
State；Conflict sleeve is then loaded onto, sleeve is contradicted and is threadedly coupled with center bolt, tighten conflict sleeve, it is fixed with rear portion
The outer surface of structure contradicts connection, further tightens, rear portion fixed structure is mutually drawn close with anterior fixed structure, then take
Lower conflict sleeve and center bolt.
Described adjustable intervertebral fusion device is made up of equipped with ad hoc holder, holder holding handle and grip block,
Hold handle is internally provided with operation through hole, and one end termination symmetry shape for holding handle is provided with grip block；The section of grip block is in
Triangle, the other end for holding handle are provided with handle；Bone grafting hole is provided with grip block above.
Described anterior fixed structure and/or the upper and lower surface of rear portion fixed structure are provided with dentalation.
Can be auxiliary by medical suture, wire, holdfast, screw between described anterior fixed structure and rear portion fixed structure
Reinforcing is helped, is laid when fixed structure and/or elastic construction are non-metallic material, in its material or does not lay wire-shaped or netted
Metal coating is laid or not laid on structural strengthening, its surface.
At described anterior fixed structure, rear portion fixed structure and/or elastic construction and vertebral plate sclerotin attaching for plane or
Cambered surface；Surface is sprayable to be had the material of induction Bone Ingrowth or carries out the processing such as voided, gridding, threaded, metallization.
Middle part fixed block is provided with the middle part of described elastic construction.
The beneficial effect of the present invention compared with prior art is：
The adjustable intervertebral fusion device is made up of fixed structure, elastic construction and fastening structure, and its fixed structure is tied by elasticity
Structure joins together, and the shape of elastic construction can be adjusted in implantation process.Before implantation, first this adjustable intervertebral is melted
The maximum transverse diameter of clutch is turned down, and loads sclerotin toward fusion device is interior.The adjustable intervertebral fusion device is implanted to holder again
Intervertebral；After adjustable intervertebral fusion device implantation intervertenral space, in the presence of its own resilient or fastening structure, broadening middle part is horizontal
Width, can effectively improve fusion device intervertebral footprints and bone grafting volume, by institute's bone grafting matter all of and make to be implanted into
Osseous granules or bone piece and upper and lower centrum between contact it is close, moreover it is possible to allow fusion device close to " ten " font or Triangle-Profile,
It is more uniformly distributed in the stress distribution of intervertenral space, the area that fusion device and institute's bone grafting matter contact with upper and lower conical surface is bigger, prosthese
The possibility of abjection is smaller, and it is lower the risk that collapse of vertebra or component release occur, and meets small otch implantation or minimally invasive logical
The needs of implant surgery under road.
Brief description of the drawings
Fig. 1 be the fixed part of adjustable intervertebral fusion device be four parts and fasten after front view；
Fig. 2 is that the fixed part of adjustable intervertebral fusion device is tetrameric front view；
Fig. 3 is that the fixed part of adjustable intervertebral fusion device is the front view after three parts and fastening；
Fig. 4 is to be connected by hinge arrangement between the fixed structure of adjustable intervertebral fusion device and the front view after fastening；
The front view that Fig. 5 is connected between the fixed structure of adjustable intervertebral fusion device by hinge arrangement；
Fig. 6 is that the fastening structure of adjustable intervertebral fusion device is the front view of screw suit structure；
Fig. 7 is that the fastening structure of adjustable intervertebral fusion device is the section front view of screw suit structure；
Fig. 8 is basic structure front view of the adjustable intervertebral fusion device built with skeletal grain；
Fig. 9 is the state diagram after adjustable intervertebral fusion device fastening structure fastens；
Figure 10 is adjustable intervertebral fusion device built with being implanted into the state diagram that finishes after skeletal grain and fastening；
Figure 11 is the schematic diagram that plate and slot are provided with dentalation；
Figure 12 is the holder main structure diagram with inserted link；
Figure 13 is the holder overlooking the structure diagram with inserted link；
Figure 14 is the front view that adjustable intervertebral fusion device is equipped with holder；
Figure 15 is that the schematic diagram for having jack is made on the rear portion fixed structure of adjustable intervertebral fusion device；
Figure 16 is the top of the front and rear portions fixed structure of adjustable intervertebral fusion device, the schematic diagram of the flexible structure of bottom making；
Figure 17 is that elastic construction is softened state in the preoperative, and carries a corrugated structural representation；
Figure 18 is with the front view that holder is housed on a corrugated elastic construction；
Figure 19 is that elastic construction is softened state in the preoperative, and carries multiple corrugated structural representations；
Figure 20 is with the front view that holder is housed on multiple corrugated elastic constructions；
Figure 21 is that the elastic construction of adjustable intervertebral fusion device is the structural representation of softened state in the preoperative；
The structural representation that the adjustable intervertebral fusion device that Figure 22 is Figure 21 loads after tie down screw；
Figure 23 is the structural representation after tie down screw locking；
Figure 24 is the mplifying structure schematic diagram at C in Figure 23；
Figure 25 is the structural representation of A-A in Figure 24；
Figure 26 is the structural representation of tie down screw；
Figure 27 is tie down screw B-B structural representation；
Figure 28 is the structural representation that anterior fixed structure and rear portion fixed structure are in respectively U-typed；
Figure 29 is anterior fixed structure and the separated structural representation of rear portion fixed structure；
Figure 30 is the structural representation that adjustable intervertebral fusion device loads center bolt and outer sleeve；
Figure 31 is the structural representation after dismounting outer sleeve；
Figure 32 is that adjustable intervertebral fusion device loads the structural representation for contradicting sleeve；
Figure 33 is the left view structural representation of adjustable intervertebral fusion device；
Figure 34 is the structural representation that middle part fixed block is provided with the middle part of elastic construction；
Figure 35 is the structural representation that elastic construction is dual panel-type；
Figure 36 is the holder main structure diagram with grip block；
Figure 37 is the holder overlooking the structure diagram with grip block；
Figure 38 is that adjustable intervertebral fusion device is equipped with the front view with grip block holder.
In figure：1st, anterior fixed structure, 2, rear portion fixed structure, 3, elastic construction, 4, fastening structure, 5, plate, 6, insert
Groove, 7, holder baffle plate, 8, inserted link, 9, jack, 10, hold handle, 11, threaded rod, 12, elongated through hole, 13, fixed plate, 14, card
Hole, 15, tie down screw, 16, center bolt, 17, outer sleeve, 18, contradict sleeve, 19, grip block, 20, operation through hole, 21, hand
Handle, 22, bone grafting hole, 23, dentalation, 24, middle part fixed block, 25, skeletal grain, 26, fusion hole.
Embodiment
The adjustable intervertebral fusion device includes fixed structure, elastic construction and fastening structure, and fixed structure is divided into anterior fixed knot
Structure 1 and rear portion fixed structure 2, connected between anterior fixed structure 1 and rear portion fixed structure 2 by elastic construction 3.
The side of elastic construction 3 is provided with multiple fusion holes 26, and the purpose for setting fusion hole 26 is：It is easy to adjustable vertebra
Between skeletal grain inside fusion device can be grown integrally by merging hole 26, and beneficial to the blood vessel length outside adjustable intervertebral fusion device
Enter, so as to promote to merge, heighten the effect of a treatment.
Anterior fixed structure 1 and rear portion fixed structure 2 are connected with each other by elastic construction 3；Anterior fixed structure 1 and/or
Rear portion fixed structure 2 is one or more（Referring to Figure of description 1,2,3）, fastening structure 4 and fixed structure are affixed integral
Or by being assembled integrally.The upper and lower surface of anterior fixed structure 1 and/or rear portion fixed structure 2 is provided with dentalation 23.Set
The purpose of dentalation 23 is：After adjustable intervertebral fusion device implantation, can by the dentalation 23 of its upper and lower surface, with
The vertebral surfaces clamping connection of sufferer, so as to avoid the generation that the adjustable intervertebral fusion device slips accident.
Elastic construction 3 is continuous platy structure, fenestral fabric, hinge arrangement, dual panel-type structure or occlusion structure, its
Elastic construction 3 is in the preoperative contraction state, and it is in strut shape outwards to flick after implantation or be pressurized in the presence of fastening structure automatically
State（Referring to Figure of description 1-16）, its platy structure is curved, waveform or straight.
Anterior fixed structure 1 and rear portion fixed structure 2 are provided with jack 9, and the jack 9 of rear portion fixed structure 2 is through hole, anterior
The jack of fixed structure 1 is through hole or blind hole, and anterior fixed structure 1 is corresponding with the jack of rear portion fixed structure 2.
For adjustable intervertebral fusion device equipped with ad hoc holder, holder is by holder baffle plate 7, inserted link 8 and holds handle
10 are formed, and holder baffle plate 7 and inserted link 8 at right angles or are bordering on right angle and connected, and holding handle 10 is hollow form.During operation, holder
The jack of inserted link 8 from rear portion fixed structure 2 be inserted into the jack of anterior fixed structure 1, anterior fixed structure 1 and rear portion are consolidated
Determine structure 2 to hold temporarily in one plane（Referring to Figure of description 14）.The purpose for setting holder is：Should first, using
It is easy to operation between the adjustable intervertebral fusion device is sent to vertebra by holder；Second, pass through the holder in surgical procedure
Fixedly adjustable formula Invasive lumbar fusion device, prevent from producing during adjustable intervertebral fusion device stress and rock, influence operation and carry out.
Fastening structure 4 is thread set structure, and one end of fixed structure is equipped with thread bush, the other end suit of fixed structure
There is the threaded rod 11 to match with thread bush（Referring to Figure of description 4-10）.Preoperative threaded rod 11 is in relaxed state, elasticity knot
Structure 3 is in contraction state（Referring to Figure of description 5-8）；Now in the solid skeletal grain 25 of adjustable intervertebral fusion device（Skeletal grain
25 do not fall out in the presence of mutual extruding force）；Then the adjustable intervertebral fusion device is implanted into sufferer using holder
The specified location of vertebra；Then penetrated using instrument and tighten threaded rod 11 after holder and rear portion fixed structure 2 and make anterior fixation
Structure 1 and rear portion fixed structure 2 are close to each other, and extrude elastic construction 3, and it is in strut elastic construction 3 is flared out after being pressurized
State.Then remove holder and skeletal grain is filled into the adjustable intervertebral fusion device by the through hole on rear portion fixed structure 2
25, you can complete the implantation work of adjustable intervertebral fusion device.
Anterior fixed structure 1 and rear portion fixed structure 2 are provided with plate 5 and slot 6, are corresponded to respectively on plate 5 and slot 6
Be provided with ratchet, when anterior fixed structure 1 and rear portion fixed structure 2 are joined together by fastening structure 4, the He of plate 5
Ratchet in slot 6 is mutually twisted together, and anterior fixed structure 1 and the further fixed locking of rear portion fixed structure 2 have
Prevent the effect of anterior fixed structure 1 and rear portion fixed structure 2 separation（Referring to Figure of description 11 or 16）.
As a modification of the present invention, elastic construction 3 is continuous platy structure, fenestral fabric, hinge arrangement, double
Plate profile structure（Referring to Figure of description 35）Or occlusion structure, its elastic construction 3 are softened state in the preoperative（It is attached referring to specification
Figure 17,19,21 and 28）, in the presence of fastening structure, in art be implanted into intervertenral space before be contraction state（It is attached referring to specification
Figure 18,20,22 and 30）, it is softened state after implantation, its platy structure is curved, waveform or straight.
Holder through hole is provided with the elastic construction 3 of undulate, elastic construction 3 is inwardly extruded to a certain degree
Afterwards, the inserted link 8 of holder can be plugged into holder through hole, elastic construction is remained retracted state（Referring to Figure of description 18
Or 20）, and fixed structure is held in one plane.
Extruding elastic construction 3 makes it be in contraction state in vitro first during operation, is then inserted into the inserted link 8 of holder
In the holder through hole of elastic construction 3；Elastic construction 3 is set to remain retracted state（Referring to Figure of description 18 or 20）；Then exist
The solid skeletal grain 25 of adjustable intervertebral fusion device（Skeletal grain 25 is not fallen out in the presence of mutual extruding force）；Then use
The adjustable intervertebral fusion device is implanted into the specified location of sufferer vertebra by holder；Then holder is removed, it is now adjustable
The elastic construction 3 of formula Invasive lumbar fusion device automatic rebounding in the presence of its own resilient is in softened state；Then fixed by rear portion
Through hole in structure 2 fills skeletal grain 25 into the adjustable intervertebral fusion device, you can completes the plant of the adjustable intervertebral fusion device
Enter work.
As a modification of the present invention, anterior fixed structure 1 is in U-typed, and rear portion fixed structure 2 is elongate body, rear portion
The middle part of fixed structure 2 is provided with elongated through hole 12, and fixed plate 13 is provided with elongated through hole 12（Referring to Figure of description 21）.
Fastening structure 4 is thread set structure, and internal thread through hole is provided with anterior fixed structure 1；Operation consent compresses bullet
Property structure 3, is separated from each other anterior fixed structure 1 and rear portion fixed structure 2；Then hole clipping is passed through on rear portion fixed structure 2
14 activities are equipped with tie down screw 15；Now the front end of tie down screw 15 contradicts with anterior fixed structure 1 and connected, tie down screw 15
Rear end contradicts with fixed plate 13 and connected；And then anterior fixed structure 1 and rear portion fixed structure 2 is kept separation, so that elastic
Structure 3 remains retracted state（Referring to Figure of description 22）.
Hole clipping 14 for open-type circular hole（Referring to Figure of description 25）；The diameter of hole clipping 14 and the diameter of tie down screw 15
It is corresponding；One end of tie down screw 15 is symmetrically arranged with mounting groove（Referring to Figure of description 26 and 27）；After being arranged such：
Ensure that tie down screw 15 can be rotated smoothly in hole clipping 14, can avoid tie down screw 15 in operation sliding from hole clipping 14 again
It is de-.
After above procedure is carried out, tightening tool is stretched into out of through hole on rear portion fixed structure 2 to abutting locking screw
The nut of bar 15, toward the solid skeletal grain 25 of adjustable intervertebral fusion device（Skeletal grain 25 will not in the presence of mutual extruding force
Drop）；Then adjustable intervertebral fusion device is implanted, then tightens tie down screw 15, consolidates anterior fixed structure 1 and rear portion
It is close to each other to determine structure 2, by anterior fixed structure 1 and the further fixed locking of rear portion fixed structure 2, keeps elastic construction 3
Softened state（Referring to Figure of description 23）.Finally by the through hole on rear portion fixed structure 2 to the adjustable intervertebral fusion device
Interior further filling skeletal grain 25, you can complete the implantation work of the adjustable intervertebral fusion device.
As the improvement of the present invention, anterior fixed structure 1 and rear portion fixed structure 2 are in U-typed respectively, anterior fixed structure
Unidirectional ratchet, the unidirectional ratchet of anterior fixed structure 1 are respectively arranged with 1 inner surface and the outer surface of rear portion fixed structure 2
Connection is engaged with the unidirectional ratchet of rear portion fixed structure 2（Referring to Figure of description 28）.The purpose for setting unidirectional ratchet is：It is single
To after ratchet engagement, rear portion fixed structure 2 can only mutually be drawn close with anterior fixed structure 1, can not be separated, so as to which rear portion be consolidated
Determine structure 2 to lock with anterior fixed structure 1, avoid rear portion fixed structure 2 and separated with anterior fixed structure 1, cause elastic knot
Structure 3 shrinks the generation of problem.
The adjustable intervertebral fusion device is equipped with ad hoc implanting instrument, and implanting instrument is by center bolt 16, outer sleeve 17
Formed with sleeve 18 is contradicted.Operation front clamp rear portion fixed structure 2 makes it be separated with the unidirectional ratchet of anterior fixed structure 1（Ginseng
See Figure of description 29）；Then it is threadedly coupled after center bolt 16 being passed through into rear portion fixed structure 2 with anterior fixed structure 1, and
The movable set outer sleeve 17 on center bolt 16；The outer surface of outer sleeve 17 is connected with the afterbody through hole whorl of rear portion fixed structure 2,
Outer sleeve 17 then is tightened, outer sleeve 17 is tightened and contradicts connection with anterior fixed structure 1, anterior fixed structure 1 is consolidated with rear portion
Determine structure 2 and keep separation, and then make elastic construction 3 be in contraction state（Referring to Figure of description 30）.
Then in the solid skeletal grain 25 of adjustable intervertebral fusion device（Skeletal grain 25 will not in the presence of mutual extruding force
Drop）；Then the adjustable intervertebral fusion device is implanted into the specified location of sufferer vertebra；Outer sleeve 17 is removed again, now
The elastic construction 3 of adjustable intervertebral fusion device automatic rebounding in the presence of its own resilient is in softened state（It is attached referring to specification
Figure 31）, rear portion fixed structure 2 is mutually drawn close with anterior fixed structure 1 in the presence of elastic force, and on rear portion fixed structure 2
Unidirectional ratchet is mutually twisted with anterior fixed structure 1.If the transverse width of the now resilience of elastic construction 3 is preferable, directly by
Heart screw rod 16 is pulled down, and skeletal grain 25 is filled into the adjustable intervertebral fusion device by tail end through hole, you can it is adjustable to complete this
The implantation work of Invasive lumbar fusion device.If the scope of the resilience of elastic construction 3 is not ideal enough, loads onto and contradict sleeve 18, contradict sleeve
18 are threadedly coupled with center bolt 16, then tighten and contradict sleeve 18, it is contradicted with rear portion fixed structure 2 and connect, further
Tighten, rear portion fixed structure 2 is further drawn close with anterior fixed structure 1, so that elastic construction 3 is laterally flared to suitable
Position；Now unidirectional ratchet locks fixed structure；Then remove and contradict sleeve 18 and center bolt 16, and pass through tail end through hole
Skeletal grain 25 is filled into the adjustable intervertebral fusion device, you can complete the implantation work of the adjustable intervertebral fusion device.
For the ease of the implantation of the adjustable intervertebral fusion device, the adjustable intervertebral fusion device is held equipped with holder
Device is made up of holding handle 10 and grip block 19, holds one end termination for being internally provided with operation through hole 20, holding handle 10 of handle 10
Symmetry shape is provided with grip block 19；The section of grip block 19 is triangular in shape, and the section of grip block 19 is arranged to the mesh of triangle
Be：It is domatic that so that grip block 19 is presented, front end is thin, rear end is thick, and such holder has held adjustable intervertebral fusion device work
During implant procedure, the intervertenral space at rear can be allowed moderately to open, so that the postmedian of adjustable intervertebral fusion device is laterally flared
During be not hampered by the stop of centrum sclerotin.
The other end for holding handle 10 is provided with handle 21；The purpose for setting handle 21 is：Operator takes during convenient operation
Pinch holder.Bone grafting hole 22 is provided with grip block 19 above.
During operation, implant procedure is carried out after the adjustable intervertebral fusion device can be accommodated by the grip block 19 of holder
（Referring to Figure of description 38）；Through hole 20 is operated due to holding being internally provided with for handle 10, therefore implanting instrument may pass through behaviour
Operated after making through hole 20.The effect of holder is set to be：First, the holder is used by the adjustable intervertebral fusion device
It is sent between vertebra, it is easy to operation；Second, by the fixedly adjustable formula Invasive lumbar fusion device of the holder in surgical procedure, preventing can
Produce and rock during mode Invasive lumbar fusion device stress, influence operation and carry out.
It can be added between anterior fixed structure 1 and rear portion fixed structure 2 by medical suture, wire, holdfast, screw auxiliary
Gu fixed structure and/or elastic construction 3 are non-metallic material, its material is interior to be laid or does not lay wire-shaped or netted knot
Structure is reinforced, and metal coating is laid or do not laid on its surface.
Anterior fixed structure 1, rear portion fixed structure 2 and/or elastic construction 3 are with being plane or arc at vertebral plate sclerotin attaching
Face；Surface is sprayable to be had the material of induction Bone Ingrowth or carries out the processing such as voided, gridding, threaded, metallization.Elasticity knot
The middle part of structure 3 is provided with middle part fixed block 24, further to increase the support degree of the adjustable intervertebral fusion device.
Optionally, described elastic construction 3 can be located at fixed structure both sides, may be alternatively located at fixed structure top and/
Or bottom, can also upper and lower part and both sides elastic construction 3 be present simultaneously.When elastic construction 3 be located at fixed structure top and/or
During bottom, during fastening structure fastens, the elastic construction of the top of its fixed structure and/or bottom can upwards and/or
Open downwards, be adapted with the anatomical structure convex with centrum middle concave, periphery, and reduce further fusion device abjection after implantation
Risk.
The elastic construction 3 of the adjustable intervertebral fusion device is entered among human body in contraction state, so that this is adjustable
Invasive lumbar fusion device can be implanted into less otch or passage；Implantation is convenient, and the damage to patient is smaller；When the adjustable intervertebral melts
Elastic construction 3 is in softened state after clutch implantation；Footprints and bone grafting area of the fusion device in intervertebral can effectively be improved；
And can concentrates on institute's bone grafting grain at the middle part of intervertenral space, reduces the waste of bone grafting, moreover it is possible to allows fusion device to divide close to " ten " font
Cloth, it is more uniformly distributed in the stress distribution of intervertebral, the area that fusion device and institute's bone grafting matter contact with upper and lower cone surface is bigger, prosthese
The possibility of abjection is smaller, and the risk for collapse of vertebra occur is lower.
Simply presently preferred embodiments of the present invention described above, the example above illustrate not make the substantive content of the present invention
Any formal limitation, technology of the person of an ordinary skill in the technical field after this specification has been read according to the present invention
Any simple modification or deformation that essence is made to above embodiment, and the technology contents possibly also with the disclosure above
The equivalent embodiment of equivalent variations is changed or is modified to, in the range of still falling within technical solution of the present invention, without departing from
The spirit and scope of the invention.
Claims (10)
1. a kind of adjustable intervertebral fusion device includes fixed structure, elastic construction and fastening structure, it is characterised in that：Fixed structure
It is divided into anterior fixed structure（1）With rear portion fixed structure（2）, anterior fixed structure（1）With rear portion fixed structure（2）Between pass through
Elastic construction（3）Connection, anterior fixed structure（1）With rear portion fixed structure（2）Pass through fastening structure（4）Locking is integral；Institute
The anterior fixed structure stated（1）And/or rear portion fixed structure（2）For one or more, described fastening structure（4）With fixed knot
Structure is affixed integral or by being assembled integrally.
A kind of 2. adjustable intervertebral fusion device according to claim 1, it is characterised in that：Described elastic construction（3）For
Continuous platy structure, fenestral fabric, hinge arrangement, dual panel-type structure or occlusion structure, its elastic construction（3）It is in the preoperative
Contraction state, it is in softened state to be pressurized after implantation in the presence of fastening structure, and its platy structure is curved, waveform or straight
Shape.
A kind of 3. adjustable intervertebral fusion device according to claim 2, it is characterised in that：Described fastening structure（4）For
Thread set structure, one end of fixed structure are equipped with thread bush, and the other end of fixed structure is set with what is matched with thread bush
Threaded rod（11）, by tightening threaded rod（11）Make anterior fixed structure（1）With rear portion fixed structure（2）It is close to each other, and squeeze
Compression elasticity structure（3）, make elastic construction（3）It is in softened state to be flared out after compression；Described anterior fixed structure（1）With it is rear
Portion's fixed structure（2）It is provided with plate（5）And slot（6）, plate（5）And slot（6）It is upper it is corresponding respectively be provided with ratchet, when
Pass through fastening structure（4）By anterior fixed structure（1）With rear portion fixed structure（2）When joining together, plate（5）And slot（6）
Interior ratchet is mutually twisted together, by anterior fixed structure（1）With rear portion fixed structure（2）Further fixed locking.
A kind of 4. adjustable intervertebral fusion device according to claim 2, it is characterised in that：Described anterior fixed structure
（1）With rear portion fixed structure（2）Provided with jack（9）, rear portion fixed structure（2）Jack（9）For through hole, anterior fixed structure
（1）Jack be through hole or blind hole, anterior fixed structure（1）With rear portion fixed structure（2）Jack it is corresponding or elasticity tie
Structure（3）Deform upon rear corresponding；Described adjustable intervertebral fusion device is equipped with ad hoc holder, and holder is by holder
Baffle plate（7）, inserted link（8）With holding handle（10）Form, holder baffle plate（7）And inserted link（8）At right angles or right angle connection is bordering on,
Hold handle（10）For hollow form, holder is in use, the inserted link of holder（8）From rear portion fixed structure（2）Jack be inserted into before
Portion's fixed structure（1）Jack, by anterior fixed structure（1）With rear portion fixed structure（2）It is interim to hold in one plane.
A kind of 5. adjustable intervertebral fusion device according to claim 1, it is characterised in that：Described elastic construction（3）For
Continuous platy structure, fenestral fabric, hinge arrangement, dual panel-type structure or occlusion structure, its elastic construction（3）It is in the preoperative
Softened state, it is contraction state in art in the presence of fastening structure, is softened state after implantation, its platy structure is in arc
Shape, waveform or straight.
A kind of 6. adjustable intervertebral fusion device according to claim 5, it is characterised in that：The elasticity of described undulate
Structure（3）On be provided with holder through hole, by elastic construction（3）Inwardly extruding is to after to a certain degree, the inserted link of holder（8）
It can be plugged into holder through hole, elastic construction is remained retracted state, and fixed structure is held in one plane.
A kind of 7. adjustable intervertebral fusion device according to claim 5, it is characterised in that：Described anterior fixed structure
（1）In U-typed, rear portion fixed structure（2）For elongate body, rear portion fixed structure（2）Middle part be provided with elongated through hole（12）, it is long
Shape through hole（12）Inside it is provided with fixed plate（13）；Described fastening structure（4）For thread set structure, anterior fixed structure（1）
On be provided with internal thread through hole, rear portion fixed structure（2）On pass through hole clipping（14）Activity is equipped with tie down screw（15）, lock in art
Screw rod（15）Front end and anterior fixed structure（1）Connection is contradicted, makes anterior fixed structure（1）With rear portion fixed structure（2）Phase
Mutually separation, so that elastic construction（3）Remain retracted state；After adjustable intervertebral fusion device implantation, tie down screw is tightened（15）,
Make anterior fixed structure（1）With rear portion fixed structure（2）It is close to each other, by anterior fixed structure（1）With rear portion fixed structure（2）
Further fixed locking, makes elastic construction（3）Keep softened state.
A kind of 8. adjustable intervertebral fusion device according to claim 5, it is characterised in that：Described anterior fixed structure
（1）With rear portion fixed structure（2）It is in U-typed respectively, anterior fixed structure（1）Inner surface and rear portion fixed structure（2）It is outer
Unidirectional ratchet, anterior fixed structure are respectively arranged with surface（1）Unidirectional ratchet and rear portion fixed structure（2）Unidirectional ratchet
Engagement connection；Anterior fixed structure（1）Inner surface and rear portion fixed structure（2）During upper setting unidirectional ratchet, it need to use ad hoc
Implanting instrument complete adjustable intervertebral fusion device implantation work.
A kind of 9. adjustable intervertebral fusion device according to claim 8, it is characterised in that：Described implanting instrument is by center
Screw rod（16）, outer sleeve（17）With conflict sleeve（18）Form, center bolt（16）Through rear portion fixed structure（2）Afterwards with front portion
Fixed structure（1）Threaded connection, center bolt（16）On be movably installed with outer sleeve（17）, outer sleeve（17）Outer surface and rear portion
Fixed structure（2）Afterbody through hole whorl is connected, and rear portion fixed structure is clamped in art（2）Front end make itself and anterior fixed structure
（1）Unidirectional ratchet separation；Then tighten outer sleeve（17）, make anterior fixed structure（1）With rear portion fixed structure（2）Separation,
And then make elastic construction（3）In contraction state；Outer sleeve is removed after then the adjustable intervertebral fusion device is implanted into（17）, now
Elastic construction（3）It is reset to softened state；Then load onto conflict sleeve（18）, contradict sleeve（18）With center bolt（16）Screw thread
Connection, tightens conflict sleeve（18）, make itself and rear portion fixed structure（2）Connection is contradicted, further tightens, makes rear portion fixed knot
Structure（2）With anterior fixed structure（1）Further draw close, then remove conflict sleeve（18）And center bolt（16）.
A kind of 10. adjustable intervertebral fusion device according to claim 5, it is characterised in that：Described adjustable intervertebral melts
Clutch is equipped with holder, and auxiliary completes implantation work, and holder is by holding handle（10）And grip block（19）Form, hold handle
（10）Be internally provided with operation through hole（20）, hold handle（10）One end termination symmetry shape be provided with grip block（19）；Clamping
Plate（19）Section it is triangular in shape, hold handle（10）The other end be provided with handle（21）；Grip block above（19）On
It is provided with bone grafting hole（22）.
Applications Claiming Priority (2)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201610500668.1A CN105997311A (en) | 2016-06-30 | 2016-06-30 | Adjustable interbody fusion device |
| CN2016105006681 | 2016-06-30 |
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| CN107349033A true CN107349033A (en) | 2017-11-17 |
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| CN201610500668.1A Pending CN105997311A (en) | 2016-06-30 | 2016-06-30 | Adjustable interbody fusion device |
| CN201710432386.7A Pending CN107349033A (en) | 2016-06-30 | 2017-06-09 | Adjustable intervertebral fusion device |
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| Application Number | Title | Priority Date | Filing Date |
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| CN201610500668.1A Pending CN105997311A (en) | 2016-06-30 | 2016-06-30 | Adjustable interbody fusion device |
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| WO (1) | WO2018001137A1 (en) |
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| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105997311A (en) * | 2016-06-30 | 2016-10-12 | 李照文 | Adjustable interbody fusion device |
| CN108324409B (en) * | 2018-01-08 | 2023-07-28 | 北京爱康宜诚医疗器材有限公司 | Bone connecting device |
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Also Published As
| Publication number | Publication date |
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| WO2018001137A1 (en) | 2018-01-04 |
| CN105997311A (en) | 2016-10-12 |
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| RJ01 | Rejection of invention patent application after publication |
Application publication date: 20171117 |
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| RJ01 | Rejection of invention patent application after publication |