CN105902327A - Centrum fusion device - Google Patents
Centrum fusion device Download PDFInfo
- Publication number
- CN105902327A CN105902327A CN201610210983.0A CN201610210983A CN105902327A CN 105902327 A CN105902327 A CN 105902327A CN 201610210983 A CN201610210983 A CN 201610210983A CN 105902327 A CN105902327 A CN 105902327A
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- China
- Prior art keywords
- slide block
- sandwich
- elevating lever
- screw rod
- spiral shell
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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
- A61F2/442—Intervertebral or spinal discs, e.g. resilient
- A61F2/4425—Intervertebral or spinal discs, e.g. resilient made of articulated components
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- Health & Medical Sciences (AREA)
- Engineering & Computer Science (AREA)
- Biomedical Technology (AREA)
- Neurology (AREA)
- Orthopedic Medicine & Surgery (AREA)
- Cardiology (AREA)
- Oral & Maxillofacial Surgery (AREA)
- Transplantation (AREA)
- Heart & Thoracic Surgery (AREA)
- Vascular Medicine (AREA)
- Life Sciences & Earth Sciences (AREA)
- Animal Behavior & Ethology (AREA)
- General Health & Medical Sciences (AREA)
- Public Health (AREA)
- Veterinary Medicine (AREA)
- Prostheses (AREA)
Abstract
The invention relates to a centrum fusion device. The centrum fusion device includes a first lifting rod, a second lifting rod, a screw, and an upper plate and a lower plate which are arranged vertically; a first end of the screw is sleeved with a first slide block which is threadingly matched with the screw, a second end of the screw is sleeved with a second slide block which is threadingly matched with the screw, the direction of threads of the first end of the screw is contrary to the direction of threads of the second end of the screw; the first slide block and the second slide block are slidingly connected to the lower plate; the first slide block is hinged to the lower end of the first lifting rod, and the second slide block is hinged to the lower end of the second lifting rod; the center of the first lifting rod and the center of the second lifting rod are crossed and hinged; the upper ends of the first lifting rod and the second lifting rod are slidingly connected to the upper plate. The screw is rotated and drives the first slide block and the second slide block to move left and right, and then the upper plate and the second plate are closed up or separated, and the height can be adjusted.
Description
Technical field
The present invention relates to medical instruments field, particularly to a kind of threaded fusion cage.
Background technology
In daily life, due to tumor, fracture, case that the reason such as infection causes vertebral body to damage time have and send out
Raw, when treating these patients, the mode used at present is to implant a fusion device between the vertebral body damaged,
Make osseous tissue produce creeping substitution, thus repair the vertebral body of damage, but traditional threaded fusion cage height is solid
Fixed, and the intervertebral height of human body can vary with each individual, cannot be by regulating the height of threaded fusion cage in operation
It is suitable for the different intervertebral heights of different patient, thus threaded fusion cage cannot be made to be suitable for the intervertebral of human body completely
Highly, have impact on therapeutic effect.
Summary of the invention
Based on this, it is necessary to for the defect of prior art, it is provided that a kind of threaded fusion cage, height can be realized
Regulation, is suitable for the different intervertebral heights of different patient.
Its technical scheme is as follows:
A kind of threaded fusion cage, including the first elevating lever, the second elevating lever, screw rod and upper plate setting up and down
With lower plate, the first end of described screw rod is arranged with the first slide block with its threaded engagement, the second end set of screw rod
It is provided with the second slide block with its threaded engagement, the screw thread of described screw rod the first end and the screw thread side of screw rod the second end
To on the contrary, described first slide block, the second slide block are slidably connected with lower plate respectively, described first slide block and first
The lower end of elevating lever is hinged, and the lower end of described second slide block and the second elevating lever is hinged, described first elevating lever
The middle part cross-articulation of middle part and the second elevating lever, described first elevating lever, the upper end of the second elevating lever are divided
It is not slidably connected with upper plate.
Its further technical characteristic is as follows:
The both sides of described upper plate are equipped with two the first sliding eyes, and the upper end of described first elevating lever is provided with first
Pivot pin, the upper end of the second elevating lever is provided with the second pivot pin, the two ends of described first pivot pin, the two of the second pivot pin
End lays respectively in the first corresponding sliding eye, and the both sides of described lower plate are equipped with two the second sliding eyes,
Described first slide block is provided with the 3rd pivot pin, and described second slide block is provided with the 4th pivot pin, described 3rd pivot pin
Two ends, the two ends of the 4th pivot pin lay respectively in the second corresponding sliding eye.
The upper surface of described lower plate offers the sliding tray along described screw rod axial direction, described first slide block,
Second slide block is positioned at described sliding tray, and described second sliding eye is arranged on the two side of described sliding tray.
The upper surface of described lower plate offers the holding tank in direction axially along a screw, the two side of described holding tank
Being provided with the first slide rail or the first chute, described first slide block, the second slide block are positioned at described holding tank,
And be equipped with on described first slide block, the second slide block the second chute mated with described first slide rail or with institute
State the second slide rail of the first chute coupling.
Offering the slot to make way in direction axially along a screw on the lower surface of described upper plate, described first sliding eye sets
Put on the two side of described slot to make way.
The upper surface of described upper plate, lower plate lower surface on be equipped with anti-slop serrations, and the upper surface of upper plate and under
It is further opened with installing hole on the lower surface of plate.
Described threaded fusion cage also includes that rotating mechanism, described rotating mechanism include spiral shell core, sandwich and chuck,
Described spiral shell core is connected with one end of screw rod, and described lower plate is provided with folder torr or near spiral shell near the end face of spiral shell core
The outer face of the first slide block of core is provided with folder torr, and described sandwich is set in outside spiral shell core and threadeds with spiral shell core,
One end of described sandwich is clipped in outside torr, and the surface that described folder torr contacts with sandwich is for towards the first slider tilt
Inclined-plane, it is outer and threaded with sandwich that described chuck is set in sandwich, and described chuck rotates towards the first slide block
Make sandwich locking folder torr.
Described rotating mechanism also include overcoat and fixture block, described overcoat be set in described sandwich outer and with described folder
Core is slidably matched, and described overcoat offers the draw-in groove in radially direction, and described spiral shell core is corresponding with described draw-in groove
Position be provided with cannelure, described fixture block is fastened on described cannelure through draw-in groove.
Described rotating mechanism also includes handle and the torque force limiting device being arranged on handle, described spiral shell core away from
Described overcoat is stretched out in one end of screw rod, and spiral shell core is connected with described handle away from one end of screw rod.
The core section outer surface that described sandwich is corresponding with overcoat is polyhedral, the inner surface of described overcoat and multiaspect
Body shape core section shiding matching.
Advantage or principle to preceding solution illustrate below:
Above-mentioned threaded fusion cage, by rotating screw rod, drives the first slide block with its threaded engagement and second to slide
Block synchronizes to draw close to centre, thus drives first elevating lever hinged with the first slide block and the second slide block hinged
Second elevating lever rotate, upper plate is strutted with lower plate so that between upper plate and lower plate distance increase,
Rotate backward screw rod, drive the first slide block and the second slide block to synchronize to move laterally, thus drive the first lifting
Bar and the second elevating lever rotate, and are drawn close with lower plate by upper plate, so that the distance between upper plate and lower plate reduces,
Realize altitude mixture control, be suitable for the different intervertebral heights of different patient.
Accompanying drawing explanation
Fig. 1 is the schematic diagram one of threaded fusion cage described in the embodiment of the present invention;
Fig. 2 is the schematic diagram two of threaded fusion cage described in the embodiment of the present invention;
Fig. 3 is the schematic diagram three of threaded fusion cage described in the embodiment of the present invention;
Fig. 4 is the schematic diagram of rotating mechanism described in the embodiment of the present invention;
Fig. 5 is the profile of rotating mechanism described in the embodiment of the present invention;
Fig. 6 is the schematic diagram of sandwich described in the embodiment of the present invention;
Fig. 7 is the schematic diagram of spiral shell core described in the embodiment of the present invention.
Description of reference numerals:
10, the first elevating lever, the 110, first pivot pin, the 20, second elevating lever, the 210, second pivot pin, 30,
Screw rod, 40, upper plate, the 410, first sliding eye, 420, slot to make way, 430, anti-slop serrations, 440, install
Hole, 50, lower plate, the 510, second sliding eye, 520, sliding tray, 530, anti-slop serrations, 540, folder torr,
60, the first slide block, the 610, the 3rd pivot pin, the 70, second slide block, the 710, the 4th pivot pin, 80, whirler
Structure, 810, spiral shell core, 812, cannelure, 820, sandwich, 822, clip slot, 830, chuck, 840, outer
Set, 842, draw-in groove, 850, fixture block, 860, handle, 870, torque force limiting device.
Detailed description of the invention
As shown in Figures 1 to 3, a kind of threaded fusion cage, including first elevating lever the 10, second elevating lever 20,
Screw rod 30 and upper plate setting up and down 40 and lower plate 50, the first end of described screw rod 30 is arranged with and its screw thread
The first slide block 60 coordinated, the second end of screw rod 30 is arranged with the second slide block 70 with its threaded engagement, institute
State first slide block the 60, second slide block 70 to be slidably connected with lower plate 50 respectively, the spiral shell of described screw rod 30 first end
Stricture of vagina is contrary with the hand of spiral of screw rod 30 second end, described first slide block 60 and the lower end of the first elevating lever 10
Hinged, described second slide block 70 is hinged with the lower end of the second elevating lever 20, in described first elevating lever 10
The middle part cross-articulation of portion and the second elevating lever 20, described first elevating lever the 10, second elevating lever 20 upper
End is slidably connected with upper plate 40 respectively, and the both sides of upper plate 40 described in the present embodiment are equipped with two first cunnings
Dynamic hole 410, the upper end of described first elevating lever 10 is provided with the first pivot pin 110, the upper end of the second elevating lever 20
Be provided with the second pivot pin 210, the two ends of described first pivot pin 110, the two ends of the second pivot pin 210 lay respectively at
In first sliding eye 410 of its correspondence, it would however also be possible to employ the mode that slide rail coordinates with chute realizes being slidably connected.
By rotate screw rod 30, drive synchronize with the first slide block 60 of its threaded engagement and the second slide block 70 to
Centre is drawn close, thus drives first elevating lever 10 hinged with the first slide block 60 hinged with the second slide block 70
The second elevating lever 20 rotate, make the angle between the first elevating lever 10 and the second elevating lever 20 reduce, will
Upper plate 40 struts with lower plate 50, so that the distance between upper plate 40 and lower plate 50 increases, rotates backward
Screw rod 30, drives that the first slide block 60 is synchronize with the second slide block 70 to be moved laterally, thus drives the first lifting
Bar 10 rotates with the second elevating lever 20, makes the angle between the first elevating lever 10 and the second elevating lever 20 increase
Greatly, upper plate 40 is drawn close with lower plate 50, so that the distance between upper plate 40 and lower plate 50 reduces, real
Existing altitude mixture control, is suitable for the different intervertebral heights of different patient.First elevating lever 10 and the second elevating lever 20
In rotation process, described first pivot pin the 110, second pivot pin 210 is left in the first sliding eye 410 of its correspondence
Right slip, plays guide effect.
The both sides of lower plate 50 described in the present embodiment are equipped with two the second sliding eyes 510, described first slide block 60
Being provided with the 3rd pivot pin 610, described second slide block 70 is provided with the 4th pivot pin 710, described 3rd pivot pin 610
Two ends, the two ends of the 4th pivot pin 710 lay respectively in the second corresponding sliding eye 510.First is sliding
Block the 60, second slide block 70 is during horizontally slipping, and described 3rd bearing pin, the 4th bearing pin are in its correspondence
On the one hand horizontally slip in second sliding eye 510, play the guiding role, on the other hand avoid the first slide block 60,
Second slide block 70 separately or is drawn close excessively.The upper surface of described lower plate 50 offers along described screw rod 30 axle
To the sliding tray 520 in direction, described first slide block the 60, second slide block 70 is positioned at described sliding tray 520,
Described second sliding eye 510 is arranged on the two side of described sliding tray 520, and the first slide block 60, second is sliding
Block 70 slides along sliding tray 520, and it is internal to be positioned at lower plate 50, slides more steady.
According to the actual requirements, it is also possible to be not provided with the second sliding eye 510, open in the upper surface of described lower plate 50
Being provided with the holding tank along screw rod 30 axial direction, the two side of described holding tank is provided with the first slide rail or
One chute, described first slide block the 60, second slide block 70 is positioned at described holding tank, and described first slide block
60, be equipped with on the second slide block 70 the second chute mated with described first slide rail or with described first chute
Second slide rail of coupling, by the first slide rail and the cooperation of the second chute or described first chute and the second slide rail
Coordinate, make described first slide block the 60, second slide block 70 be slidably matched with lower plate 50 respectively.
The slot to make way 420 along screw rod 30 axial direction is offered on the lower surface of upper plate 40 described in the present embodiment,
Described first sliding eye 410 is arranged on the two side of described slot to make way 420.First sliding eye 410 is set
Put on the sidewall of slot to make way 420, not only convenient setting, and make first pivot pin the 110, second pivot pin 210
During lifting, drive upper plate 40 synchronization lifting, move more steady.Slot to make way 420 can also be not provided with,
Directly arrange in the both sides, lower end of upper plate 40 and be respectively provided with two hangers, the first sliding eye 410 is opened in and hangs
On ear.
The upper surface of described upper plate 40 is provided with anti-slop serrations 430, and the lower surface of lower plate 50 is provided with anti-slop serrations
It is further opened with installing hole 440 on 530, and the upper surface of upper plate 40, the lower surface of lower plate 50 is further opened with
Installing hole (not shown), conveniently puts into bone-grafting material.
As Fig. 4 is to shown in 7, and described threaded fusion cage also includes rotating mechanism 80, described rotating mechanism 80
Including spiral shell core 810, sandwich 820 and chuck 830, described spiral shell core 810 is connected with one end of screw rod 30, institute
State lower plate 50 and be provided with folder torr 540 or the first slide block 60 near spiral shell core 810 near the end face of spiral shell core 810
Outer face be provided with folder torr (not shown), described sandwich 820 be set in spiral shell core 810 outer and with spiral shell core
810 is threaded, and one end of described sandwich 820 is clipped in outside torr 540, and described folder torr 540 and sandwich
The surface of 820 contacts is the inclined-plane tilted towards the first slide block 60, and described chuck 830 is set in outside sandwich 820
And threaded with sandwich 820, described chuck 830 rotates towards the first slide block 60 and makes sandwich 820 locking folder torr
540.Rotating spiral shell core 810, driving connected screw rod 30 to rotate, so that threadeding with screw rod 30
First slide block the 60, second slide block 70 mutually draw close along screw rod 30 or separate, before described sandwich 820
End is enclosed within folder torr 540, owing to folder asks 540 surfaces contacted with sandwich 820 for tilt towards the first slide block 60
Inclined-plane, the front end of sandwich 820 offers the clip slot 822 along its axial direction, so chuck 830 is towards first
Slide block 60 constantly oppresses the sandwich 820 of clip slot 822 both sides while rotating, make sandwich 820 locking folder torr 540,
Spiral shell core 810 rotates relative to sandwich 820, if folder torr is arranged on the first slide block 60, sandwich 820 is then with first
Slide block 60 synchronizing moving, if folder torr 540 is arranged in lower plate 50, owing to lower plate 50 maintains static, sandwich
820 relative screw rod 30 not shift positions, are connected with folder torr 540 by arranging sandwich 820, make screw rod 30 exist
In rotary course lighter, and make upper plate 40 and lower plate 50 keep fixed position.
Described rotating mechanism 80 also includes overcoat 840 and fixture block 850, and described overcoat 840 is set in described folder
Core 820 is outer and is slidably matched with described sandwich 820, and described overcoat 840 offers the card in radially direction
Groove 842, the position that described spiral shell core 810 is corresponding with described draw-in groove 842 is provided with cannelure 812, described fixture block 850
It is fastened on described cannelure 812 through draw-in groove 842.Due to be provided with fixture block 850 be stuck in draw-in groove 842 with
On cannelure 812, described spiral shell core 810 rotates phase to overcoat 840 rotation, and sandwich 820 can be mutually external
Set 840 horizontally slips, and slides steadily, and to adapt to the change of folder torr 540 positions, described sandwich 820 is with outer
The core section outer surface overlapping 840 correspondences is polyhedral, in hexahedron shape in the present embodiment, naturally it is also possible to be
Other shapes, such as pentahedron, heptahedron etc., the inner surface of described overcoat 840 slides with polyhedral core section
Coupling, so arranges, makes the relative overcoat 840 of sandwich 820 can only horizontally slip, without rotating.
Described rotating mechanism 80 also includes handle 860 and the torque force limiting device 870 being arranged on handle 860,
Described spiral shell core 810 stretches out described overcoat 840 away from one end of screw rod 30, and spiral shell core 810 is away from screw rod 30
One end is connected with described handle 860.Driving spiral shell core 810 to rotate by rotary handle 860, described torsion limits
Device 870 processed is to limit torsion, and console rises dynamics, i.e. when reaching certain dynamics, it is impossible to twisting,
Avoid handle 860 to rotate excessively, can be selected for ratchet etc. as torque force limiting device.In the present embodiment, described hands
Handle 860 front end is provided with bar-shaped trough, one end that described spiral shell core 810 is connected with handle 860 in described bar-shaped trough
The kidney-shaped of coupling, makes spiral shell core 810 link with handle 860, does not relatively rotates.Corresponding,
The front end of described spiral shell core 810 also is provided with bar-shaped trough, one end that described screw rod 30 is connected with spiral shell core 810 in spiral shell
The kidney-shaped of core 810 front end bar-shaped trough coupling, makes screw rod 30 link with spiral shell core 810, phase does not the most occur
To rotation.
Each technical characteristic of embodiment described above can combine arbitrarily, for making description succinct, the most right
The all possible combination of each technical characteristic in above-described embodiment is all described, but, if these skills
There is not contradiction in the combination of art feature, is all considered to be the scope that this specification is recorded.
Embodiment described above only have expressed the several embodiments of the present invention, and it describes more concrete and detailed,
But therefore can not be interpreted as the restriction to the scope of the claims of the present invention.It should be pointed out that, for this area
Those of ordinary skill for, without departing from the inventive concept of the premise, it is also possible to make some deformation and
Improving, these broadly fall into protection scope of the present invention.Therefore, the protection domain of patent of the present invention should be with appended
Claim is as the criterion.
Claims (10)
1. a threaded fusion cage, it is characterised in that include the first elevating lever, the second elevating lever, screw rod and
Upper plate setting up and down and lower plate, the first end of described screw rod is arranged with the first slide block with its threaded engagement,
Second end of screw rod is arranged with the second slide block with its threaded engagement, the screw thread of described screw rod the first end and screw rod
The hand of spiral of the second end is contrary, and described first slide block, the second slide block are slidably connected with lower plate respectively, described
The lower end of the first slide block and the first elevating lever is hinged, and the lower end of described second slide block and the second elevating lever is hinged,
The middle part of described first elevating lever and the middle part cross-articulation of the second elevating lever, described first elevating lever, second
The upper end of elevating lever is slidably connected with upper plate respectively.
2. threaded fusion cage as claimed in claim 1, it is characterised in that the both sides of described upper plate are equipped with
Two the first sliding eyes, the upper end of described first elevating lever is provided with the first pivot pin, and the upper end of the second elevating lever sets
The second pivot pin, the two ends of described first pivot pin, the two ends of the second pivot pin is had to lay respectively at corresponding first
In sliding eye, the both sides of described lower plate are equipped with two the second sliding eyes, and described first slide block is provided with the 3rd
Pivot pin, described second slide block is provided with the 4th pivot pin, the two ends of described 3rd pivot pin, the two ends of the 4th pivot pin
Lay respectively in the second corresponding sliding eye.
3. threaded fusion cage as claimed in claim 2, it is characterised in that the upper surface of described lower plate is offered
The sliding tray along described screw rod axial direction, described first slide block, the second slide block is had to be positioned at described sliding tray,
Described second sliding eye is arranged on the two side of described sliding tray.
4. threaded fusion cage as claimed in claim 1, it is characterised in that the upper surface of described lower plate is offered
Have the holding tank in direction axially along a screw, the two side of described holding tank to be provided with the first slide rail or first to slide
Groove, described first slide block, the second slide block are positioned at described holding tank, and described first slide block, the second slide block
On be equipped with the second chute mated with described first slide rail or mate with described first chute second sliding
Rail.
5. threaded fusion cage as claimed in claim 1, it is characterised in that open on the lower surface of described upper plate
Being provided with the slot to make way in direction axially along a screw, described first sliding eye is arranged on the two side of described slot to make way.
6. threaded fusion cage as claimed in claim 1, it is characterised in that the upper surface of described upper plate, under
It is equipped with on the lower surface of plate on anti-slop serrations, and the lower surface of the upper surface of upper plate and lower plate and is further opened with installing
Hole.
7. the threaded fusion cage as described in any one of claim 1 to 6, it is characterised in that it also includes rotation
Rotation mechanism, described rotating mechanism includes that spiral shell core, sandwich and chuck, described spiral shell core are connected with one end of screw rod,
Described lower plate is provided with folder torr near the end face of spiral shell core or the outer face near the first slide block of spiral shell core is provided with
Folder torr, described sandwich is set in outside spiral shell core and threadeds with spiral shell core, and one end of described sandwich is clipped in outside torr,
And the described surface that contacts with sandwich of folder torr is the inclined-plane towards the first slider tilt, described chuck is set in sandwich
Outward and threadeding with sandwich, described chuck rotates towards the first slide block and makes sandwich locking folder torr.
8. threaded fusion cage as claimed in claim 7, it is characterised in that outside described rotating mechanism also includes
Set and fixture block, it is outer and be slidably matched with described sandwich that described overcoat is set in described sandwich, described outer puts out
Being provided with the draw-in groove in radially direction, the position that described spiral shell core is corresponding with described draw-in groove is provided with cannelure, described
Fixture block is fastened on described cannelure through draw-in groove.
9. threaded fusion cage as claimed in claim 8, it is characterised in that described rotating mechanism also includes hands
Handle and the torque force limiting device being arranged on handle, described spiral shell core stretches out described overcoat away from one end of screw rod,
And spiral shell core is connected with described handle away from one end of screw rod.
10. threaded fusion cage as claimed in claim 8, it is characterised in that described sandwich is corresponding with overcoat
Core section outer surface be polyhedral, the inner surface of described overcoat and polyhedral core section shiding matching.
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CN201610210983.0A CN105902327B (en) | 2016-04-05 | 2016-04-05 | Threaded fusion cage |
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CN107854197A (en) * | 2017-11-01 | 2018-03-30 | 四川大学华西医院 | Cervical vertebra interbody fusion cage |
CN108871853A (en) * | 2018-08-28 | 2018-11-23 | 杜鑫 | A kind of construction deep soil sampler |
CN110141405A (en) * | 2019-06-21 | 2019-08-20 | 上海长征医院 | Upper cervical spine artificial vertebral body and upper cervical spine implanting device |
CN110934670A (en) * | 2019-12-11 | 2020-03-31 | 常州市图尔迈医疗器械有限公司 | Intervertebral fusion cage capable of being unfolded at four sides |
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