CN109758271A - A kind of fusion device - Google Patents
A kind of fusion device Download PDFInfo
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- CN109758271A CN109758271A CN201910126330.8A CN201910126330A CN109758271A CN 109758271 A CN109758271 A CN 109758271A CN 201910126330 A CN201910126330 A CN 201910126330A CN 109758271 A CN109758271 A CN 109758271A
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- 230000004927 fusion Effects 0.000 title claims abstract description 48
- 210000000988 bone and bone Anatomy 0.000 claims abstract description 26
- 230000007246 mechanism Effects 0.000 claims abstract description 24
- 230000007480 spreading Effects 0.000 claims abstract description 19
- 239000007943 implant Substances 0.000 claims description 10
- 238000002513 implantation Methods 0.000 claims description 8
- 238000000034 method Methods 0.000 claims description 7
- 230000000694 effects Effects 0.000 abstract description 4
- 238000010586 diagram Methods 0.000 description 9
- 230000033001 locomotion Effects 0.000 description 9
- 239000000463 material Substances 0.000 description 5
- 239000000203 mixture Substances 0.000 description 2
- 208000010392 Bone Fractures Diseases 0.000 description 1
- 206010017076 Fracture Diseases 0.000 description 1
- 206010028980 Neoplasm Diseases 0.000 description 1
- 241000251539 Vertebrata <Metazoa> Species 0.000 description 1
- 230000008859 change Effects 0.000 description 1
- 230000007812 deficiency Effects 0.000 description 1
- 208000015181 infectious disease Diseases 0.000 description 1
- 230000004060 metabolic process Effects 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 230000008569 process Effects 0.000 description 1
- 230000006641 stabilisation Effects 0.000 description 1
- 238000011105 stabilization Methods 0.000 description 1
- 238000006467 substitution reaction Methods 0.000 description 1
- 230000004083 survival effect Effects 0.000 description 1
- 230000001225 therapeutic effect Effects 0.000 description 1
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Abstract
The invention belongs to the field of medical instrument technology, more particularly to a kind of fusion device, including fixed block, upper cover plate, lower cover plate, drive spreading mechanism, fixed block is frame structure with interior cavity, drive spreading mechanism setting in the cavities, upper cover plate and lower cover plate cover respectively to be located on the top and bottom of fixed block, the bone grafting window being arranged on upper cover plate and lower cover plate is connected with cavity, driving spreading mechanism includes adjusting screw rod, left adjusting block, right adjusting block, adjusting screw rod is rotatably arranged on fixed block, left adjusting block and right adjusting block are threadedly attached in the left and right sides of adjusting screw rod respectively, upper cover plate is matched with left adjusting block respectively with the left side of lower cover plate, upper cover plate is matched with right adjusting block respectively with the right side of lower cover plate, left adjusting block and right adjusting block are axially movable, upper cover plate and lower cover plate is driven mutually to draw close or separate.Fusion device stable structure of the present invention enhances Invasive lumbar fusion device Bony union effect.
Description
Technical field
The invention belongs to the field of medical instrument technology, and in particular to a kind of fusion device between vertebra.
Background technique
Backbone is mammalian vertebrates " column of life ", is especially shown one's talent in the evolution of the survival of the fittest in natural selection develops
The upright walking mankind.Life experiencings generation-development-decline-extinction in the case where the universal law of metabolism dominates,
In cycles with this；And the vertebra as " column of life ", it is also inevitable to be dominated by this rule.Therefore, between twenty and fifty life
After summit, decaying regression is the process that the backbone in each living individual is necessarily undergone.
Since the case that tumour, fracture, infection etc. many reasons all may cause centrum damage occurs.Treating these
When patient, currently used mode is one fusion body of implantation between the centrum of damage, and bone tissue is made to generate creeping substitution, from
And the centrum of damage is repaired, however traditional vertebral fusion body height is fixed, and the intervertebral height of human body varies with each individual, in hand
It is difficult to be adapted to the demand of patient by adjusting the height of fusion body in art, is easy to influence therapeutic effect.
The patent of invention of CN107174383A, which specifically discloses one kind, can strut type Invasive lumbar fusion device, by fusion contact mechanism
With driving spreading mechanism composition, fusion contact mechanism is made of upper device seat and lower device seat, and the driving placement mechanism is by adjusting
Screw rod, left adjusting block, right adjusting block composition, by the rotation left adjusting block of drive of adjusting screw rod and right adjusting block while inwardly
It is mobile, and then pull open the distance between device seat and lower device seat and realize strutting for fusion device, there is the support using Invasive lumbar fusion device
Opening force restores the height and tension of vertebra section, realizes and releases compressing, restores vertebra physiological camber, and Invasive lumbar fusion device Bony union is protected
The advantages that hindering spinal stabilization.But the structure of this kind of fusion device is not sufficiently stable, and bone implant object amount is little, Invasive lumbar fusion device bone
Syncretizing effect is undesirable.
Summary of the invention
The technical problem to be solved by the present invention is to overcome the deficiencies of the prior art and provide a kind of fusion that structure is more stable
Device, and the bone implant object amount of fusion device is increased, enhance Invasive lumbar fusion device Bony union effect.
In order to solve the above technical problems, a kind of technical solution that the present invention takes is:
A kind of fusion device, including fixed block, upper cover plate, lower cover plate, driving spreading mechanism, fixed block are framework knot with interior cavity
Structure, in the cavities, upper cover plate and lower cover plate covers respectively to be located on the top and bottom of fixed block the setting of driving spreading mechanism, upper cover plate and
The bone grafting window being arranged on lower cover plate is connected with cavity, and driving spreading mechanism includes adjusting screw rod, left adjusting block, right adjusting
Block, adjusting screw rod are rotatably arranged on fixed block, and left adjusting block and right adjusting block are threadedly attached in adjusting screw rod respectively
The left and right sides, upper cover plate are matched with left adjusting block respectively with the left side of lower cover plate, the right side of upper cover plate and lower cover plate respectively with
Right adjusting block matches, and left adjusting block and right adjusting block axially movable, drive upper cover plate and lower cover plate mutually to draw close or separate.
The mode that upper and lower lids are matched with left and right adjusting block herein, can be using other any sides such as inclined-plane cooperation or connecting rod cooperation
Formula drives upper cover plate and lower cover plate mutually to draw close or far from being can be realized left adjusting block and right adjusting block axially movable
Purpose.
Preferably, left adjusting block is moved with right adjusting block along axial direction in the same direction, drive upper cover plate and lower cover plate mutually draw close or
Separate, i.e., left adjusting block is moved with right adjusting block along axial side in the same direction, drives upper cover plate and lower cover plate mutually to draw close, left adjusting
Block is moved with right adjusting block along the axial other side in the same direction, and upper cover plate and lower cover plate is driven to be located remotely from each other.
Preferably, left adjusting block and right adjusting block be along axial counter motion, drive upper cover plate and lower cover plate mutually draw close or
Separate, counter motion herein is construed to opposite direction movement, including moves toward one another and move backwards, i.e., left adjusting block and right adjusting
Block is axially towards one another movement, and upper cover plate and lower cover plate is driven to be located remotely from each other, and left adjusting block is facing axially away from right adjusting block edge and moves,
Upper cover plate and lower cover plate is driven mutually to draw close, or vice versa.
It is further preferred that upper cover plate is matched with left adjusting block by inclined-plane respectively with the left side of lower cover plate, upper cover plate
It is matched respectively with right adjusting block by inclined-plane with the right side of lower cover plate, left adjusting block and right adjusting block axially movable, drive
Upper cover plate and lower cover plate are mutually drawn close or separate.
Preferably, the lower section both ends of upper cover plate are respectively equipped with to the inclined upper wedge surface of the same side direction of left or right, upper wedge surface
Middle part be equipped with upper wedge slot, be equipped in the middle part of the lower section of upper cover plate for placing the upper placement vallecular cavity for driving spreading mechanism, lower cover plate
Top both ends be respectively equipped with the lower wedge surface with upper wedge surface mirror symmetry, the middle part of lower wedge surface is equipped with and the upper symmetrical hyposphene of wedge slot
Slot, the upper center of lower cover plate are equipped with the lower placement vallecular cavity matched with upper placement vallecular cavity, upper placement vallecular cavity and lower placement vallecular cavity
Driving spreading mechanism placed cavity is cooperatively formed, is respectively equipped on the side cooperated with upper wedge surface above left adjusting block and right adjusting block
Wedge surface, wedge surface is equipped with wedge block on side cooperate with upper wedge slot on side, left adjusting block and right adjusting block be respectively arranged below with and
The side lower wedge surface of lower wedge surface cooperation, side lower wedge surface are equipped with wedge block under the side cooperated with hyposphene slot, left adjusting block and right adjusting block
Middle part be equipped with dextrorotation threaded hole, adjusting screw rod is equipped with dextrorotation screw thread, and the left end of adjusting screw rod is connected with left adjusting block, the right side
End is connected across driving spreading mechanism placed cavity with right adjusting block, and the rotation of adjusting screw rod drives left adjusting block and right adjusting block
It is mobile in the same direction simultaneously, realize mutually drawing close between upper cover plate and lower cover plate or separate.Preferred movement in the same direction is compared to reversed
Movement, assembly is more convenient in use, and structure is more stable.
Preferably, upper wedge slot, hyposphene slot are dovetail groove, and wedge block is wedge block on dove-tail form side on side, and wedge block is dovetail under side
Wedge block under type side, in addition, upper wedge slot, hyposphene slot, the shape of wedge block can also be arc-shaped, trapezoidal or different under wedge block, side on side
Shape.
Preferably, the left and right transverse shifting of adjusting screw rod, the fusion device further include backing pin in order to prevent, and adjusting screw rod includes
Nut and screw rod offer pin retaining groove on nut, and end face is equipped with hexagonal driver slot, and the left and right sides of fixed block opens up respectively
There are the nut fixation hole and screw rod fixation hole for placing nut and screw rod tail, the pin being additionally provided at corresponding pin retaining groove on fixed block
Nail hole, backing pin pass through pin hole and are inserted into pin retaining groove, limit moving left and right for adjusting screw rod.
It is further preferred that adjusting screw rod is equipped with long hole in inside along its length, screw rod, nut are passed through in one end of long hole
It is communicated with the outside, multiple implantation material outlets being connected to long hole are arranged in screw rod in the longitudinal direction, and implantation material is exported in screw rod
Upper circumferentially distributed, operation instrument is few, using more convenient.
Preferably, in order to limit the movements all around of upper and lower lids, the two sides up and down of fixed block are respectively equipped with limit
Slot, the front and rear sides of upper cover plate be respectively equipped with limiting slot cooperation limited block, the front and rear sides of lower cover plate be respectively equipped with
The limited block of limiting slot cooperation.
Preferably, bone grafting window is respectively equipped on the front and rear sides face of fixed block, fixed block is being equipped with nut fixation hole one
The side of side is equipped with instrument fixing groove, is respectively equipped with non-slip groove on the upper surface of upper cover plate and the lower surface of lower cover plate.Bone grafting
Window is preferably kidney-shaped.
The present invention also provides a kind of application method of above-mentioned fusion device, comprising the following steps:
(1) fusion device is in closed configuration；
(2) ready bone implant is implanted into from bone grafting window；
(3) instrument fixing groove is inserted the instrument into, fusion device is fixed；
(4) fusion device is inserted between vertebral plate；
(5) instrument is rotated clockwise, is stopped rotating after so that upper cover plate is strutted the height of needs with lower cover plate；
(6) removal equipment squeezes into remaining bone implant by the long hole of adjusting screw rod.
Due to the use of above technical scheme, the invention has the following advantages over the prior art:
1, the present invention increases fixed block in the structure, keeps fusion device overall structure more stable when in use；
2, the present invention drives left adjusting block and right adjusting block mobile in the same direction simultaneously by the rotation of adjusting screw rod, realize upper cover plate with
Mutually drawing close between lower cover plate is separate, keeps assembly more convenient, structure is more stable；
3, adjusting screw rod of the present invention is equipped with long hole in inside along its length, and one end of long hole is by screw rod, nut and external phase
It is connected to, the implantation material outlet being connected to long hole is set on screw rod, can also directly be filled out when being rotated to adjusting screw rod
Operation is filled, operation instrument is few, using more convenient；
4, application method of the present invention is first strutted with traditional fusion device, different in implantation bone implant, and the present invention can fill
More bone implant object amounts, enhance Invasive lumbar fusion device Bony union effect.
Detailed description of the invention
Fig. 1 is the configuration schematic diagram of the embodiment of the present invention 1；
Fig. 2 is the structural schematic diagram of fixed block in Fig. 1；
Fig. 3 is the structural schematic diagram of upper cover plate in Fig. 1, and wherein 3-1 is face upwarding stereogram, and 3-2 is top perspective view；
Fig. 4 is the structural schematic diagram of lower cover plate in Fig. 1, and wherein 4-1 is top perspective view；4-2 is face upwarding stereogram；
Fig. 5 is the structural schematic diagram of adjusting screw rod in Fig. 1, and wherein 5-1 is cross-sectional view；5-2 is side view；
Fig. 6 is the structural schematic diagram of left adjusting block in Fig. 1；
Fig. 7 is the structural schematic diagram of right adjusting block in Fig. 1；
Fig. 8 is the closed configuration schematic diagram of embodiment 1；
Fig. 9 is the softened state schematic diagram of embodiment 1；
Wherein: 1, fixed block；11, nut fixation hole；12, screw rod fixation hole；13, pin hole；14 limiting slots；2, upper cover plate；21,
Upper wedge surface；22, upper wedge slot；23, upper placement vallecular cavity；3, lower cover plate；31, lower wedge surface；32, hyposphene slot；33, lower placement vallecular cavity；4,
Adjusting screw rod；41, nut；42, screw rod；43, pin retaining groove；44, hexagonal driver slot；45, long hole；46, implantation material exports；5, left
Adjusting block；6, right adjusting block；7, backing pin；8, bone grafting window；561, wedge surface on side；562, wedge block on side；563, side lower wedge surface；
564, wedge block under side；565, threaded hole；9, limited block；10, instrument fixing groove；231, non-slip groove.
Specific embodiment
The invention will be further described with reference to the accompanying drawings and embodiments.
Embodiment 1
As shown in attached drawing 1-9, a kind of fusion device of the present embodiment, including fixed block 1, upper cover plate 2, lower cover plate 3, driving strut machine
Structure, fixed block 1 are frame structure with interior cavity, and the setting of driving spreading mechanism in the cavities, distinguish by upper cover plate 2 and lower cover plate 3
Lid is located on the top and bottom of fixed block 1, and the bone grafting window 8 being arranged on upper cover plate 2 and lower cover plate 3 is connected with cavity, driving support
Opening mechanism includes adjusting screw rod 4, left adjusting block 5, right adjusting block 6, and adjusting screw rod 4 is rotatably arranged on fixed block 1, left adjusting block
5 and right adjusting block 6 be threadedly attached in the left and right sides of adjusting screw rod 4 respectively, the left side of upper cover plate 2 and lower cover plate 3 is distinguished
It is matched with left adjusting block 5 by inclined-plane, the right side of upper cover plate 2 and lower cover plate 3 is matched with right adjusting block 6 by inclined-plane respectively
It closes, left adjusting block 5 moves with right adjusting block 6 along axial direction in the same direction, drives upper cover plate 2 and lower cover plate 3 mutually to draw close or separate, i.e. a left side
Adjusting block 5 and right adjusting block 6 are moved along axial side in the same direction, and upper cover plate 2 and lower cover plate 3 is driven mutually to draw close, left adjusting block 5 with
Right adjusting block 6 is moved along the axial other side in the same direction, and upper cover plate 2 and lower cover plate 3 is driven to be located remotely from each other.
Specific structure setting are as follows: the lower section both ends of upper cover plate 2 are respectively equipped with the inclined upper wedge surface of same side direction to the right
21, the middle part of upper wedge surface 21 is equipped with upper wedge slot 22, be equipped in the middle part of the lower section of upper cover plate 2 for places drive spreading mechanism on put
Vallecular cavity 23 is set, the top both ends of lower cover plate 3 are respectively equipped with the lower wedge surface 31 with upper 21 mirror symmetry of wedge surface, the middle part of lower wedge surface 31
The decentralization matched with upper placement vallecular cavity 23 is equipped with equipped with the upper center with the symmetrical hyposphene slot 32 of upper wedge slot 22, lower cover plate 3
Vallecular cavity 33 is set, upper placement vallecular cavity 23 cooperatively forms driving spreading mechanism placed cavity, left adjusting block 5 and right tune with lower placement vallecular cavity 33
The top of locking nub 6 is respectively equipped with wedge surface 561 on the side cooperated with upper wedge surface 21, and wedge surface 561 is equipped with and matches with upper wedge slot 22 on side
Wedge block 562 on the side of conjunction, left adjusting block 5 are respectively arranged below with the side lower wedge surface cooperated with lower wedge surface 31 with right adjusting block 6
563, side lower wedge surface 563 is equipped with wedge block 564 under the side cooperated with hyposphene slot 32, and the middle part of left adjusting block 5 and right adjusting block 6 is set
There is dextrorotation threaded hole 565, adjusting screw rod 4 is equipped with dextrorotation screw thread, and the left end of adjusting screw rod 4 is connected with left adjusting block 5, right end
It is connected across driving spreading mechanism placed cavity with right adjusting block 6, the rotation of adjusting screw rod 4 drives left adjusting block 5 and right adjusting
Block 6 is mobile in the same direction simultaneously, realizes mutually drawing close between upper cover plate 2 and lower cover plate 3 or separate, and movement is compared to reversed fortune in the same direction
Dynamic, assembly is more convenient in use, and structure is more stable.
In the present embodiment, upper wedge slot 22, hyposphene slot 32 are dovetail groove, and wedge block 562 is wedge block on dove-tail form side, side on side
Lower wedge block 564 is wedge block under dove-tail form side.
In the present embodiment, the left and right transverse shifting of adjusting screw rod 4, the fusion device further include backing pin 7 in order to prevent, are adjusted
Screw rod 4 includes nut 41 and screw rod 42, pin retaining groove 43 is offered on nut 41, end face is equipped with hexagonal driver slot 44, fixed
The left and right sides of block 1 offers the nut fixation hole 11 and screw rod fixation hole 12 for placing nut 41 and 42 tail portion of screw rod respectively, Gu
Determine to be additionally provided with the pin hole 13 at corresponding pin retaining groove 43 on block 1, backing pin 7 passes through pin hole 13 and is inserted into pin retaining groove 43, limitation
Adjusting screw rod 4 moves left and right.
In the present embodiment, adjusting screw rod 4 is equipped with long hole 45 in inside along its length, and screw rod is passed through in one end of long hole 45
42, nut 41 is communicated with the outside, and multiple implantation material outlets 46 being connected to long hole 45 are arranged in screw rod 42 in the longitudinal direction, plants
Enter that object outlet is 46 circumferentially distributed on screw rod 42, and operation instrument is few, using more convenient.
In the present embodiment, in order to limit the movement all around of upper cover plate 2, lower cover plate 3, the two sides up and down of fixed block 1
It is respectively equipped with limiting slot 14, the front and rear sides of upper cover plate 2 are respectively equipped with the limited block 9 cooperated with limiting slot 14, lower cover plate 3
Front and rear sides are respectively equipped with the limited block 9 cooperated with limiting slot 14.
In the present embodiment, bone grafting window 8 is respectively equipped on the front and rear sides face of fixed block 1, fixed block 1 is being equipped with nut
The side of 11 side of fixation hole is equipped with instrument fixing groove 10, sets respectively on the upper surface of upper cover plate 2 and the lower surface of lower cover plate 3
There is non-slip groove 231.
In the present embodiment, the bone grafting window 8 on the bone grafting window 8 on fixed block 1 and upper cover plate 2 and lower cover plate 3 is preferred
For kidney-shaped.
The application method of the above-mentioned fusion device of the present invention, comprising the following steps:
(1) fusion device is in closed configuration；
(2) ready bone implant is implanted into from bone grafting window；
(3) instrument fixing groove is inserted the instrument into, fusion device is fixed；
(4) fusion device is inserted between vertebral plate；
(5) instrument is rotated clockwise, is stopped rotating after so that upper cover plate is strutted the height of needs with lower cover plate；
(6) removal equipment squeezes into remaining bone implant by the long hole of adjusting screw rod.
Instrument herein is the common instrument of this field, is tube-in-tube structure, not as inventive point of the invention, herein no longer
Expansion description.
The present invention is described in detail above, the explanation of embodiment be merely used to help understand method of the invention and
Its core concept, its object is to allow the personage for being familiar with this field technology to can understand the content of the present invention and implement it accordingly, and
The protection scope that the present invention cannot be limited in this way.Any equivalent change or modification in accordance with the spirit of the invention should all be contained
Lid is within protection scope of the present invention.
Claims (10)
1. a kind of fusion device, it is characterised in that: including fixed block, upper cover plate, lower cover plate, driving spreading mechanism, the fixed block
For frame structure with interior cavity, the driving spreading mechanism is arranged in the cavity, and the upper cover plate and lower cover plate are distinguished
Lid is located on the top and bottom of the fixed block, and the bone grafting window being arranged on the upper cover plate and lower cover plate is connected with the cavity
Logical, the driving spreading mechanism includes adjusting screw rod, left adjusting block, right adjusting block, and the adjusting screw rod is rotatably arranged on described
On fixed block, the left adjusting block and right adjusting block are threadedly attached in the left and right sides of the adjusting screw rod respectively, described
Upper cover plate is matched with the left adjusting block respectively with the left side of lower cover plate, the right side of the upper cover plate and lower cover plate respectively with institute
It states right adjusting block to match, the left adjusting block and right adjusting block axially movable, drive the upper cover plate and lower cover plate mutual
It draws close or separate.
2. fusion device according to claim 1, it is characterised in that: the left adjusting block and right adjusting block are along axial fortune in the same direction
It is dynamic, drive the upper cover plate and lower cover plate mutually to draw close or separate.
3. fusion device according to claim 1, it is characterised in that: the left adjusting block and right adjusting block are along axial reversed fortune
It is dynamic, drive the upper cover plate and lower cover plate mutually to draw close or separate.
4. fusion device according to claim 2 or 3, it is characterised in that: the left side of the upper cover plate and lower cover plate respectively with
The left adjusting block is matched by inclined-plane, and the right side of the upper cover plate and lower cover plate passes through inclined-plane with the right adjusting block respectively
It matches, the left adjusting block and right adjusting block axially movable, drive the upper cover plate and lower cover plate mutually to draw close or separate.
5. fusion device according to claim 4, it is characterised in that: the lower section both ends of the upper cover plate be respectively equipped with to the left or
The right same inclined upper wedge surface of side direction, the middle part of upper wedge surface are equipped with upper wedge slot, are equipped with and are used in the middle part of the lower section of the upper cover plate
Place driving spreading mechanism upper placement vallecular cavity, the top both ends of the lower cover plate be respectively equipped with under upper wedge surface mirror symmetry
Wedge surface, the middle part of lower wedge surface is equipped with to be equipped with and upper placing groove with the symmetrical hyposphene slot of upper wedge slot, the upper center of the lower cover plate
The lower placement vallecular cavity that chamber matches, upper placement vallecular cavity and lower placement vallecular cavity cooperatively form driving spreading mechanism placed cavity, the left side
Wedge surface on the side cooperated with upper wedge surface is respectively equipped with above adjusting block and right adjusting block, wedge surface is equipped with and matches with upper wedge slot on side
Wedge block on the side of conjunction, the side lower wedge surface of the left adjusting block and right adjusting block being respectively arranged below with lower wedge surface cooperation, under side
Wedge surface is equipped with wedge block under the side cooperated with hyposphene slot, and the middle part of the left adjusting block and right adjusting block is equipped with dextrorotation threaded hole,
The adjusting screw rod is equipped with dextrorotation screw thread, and the left end of the adjusting screw rod is connected with left adjusting block, and right end passes through driving support
Opening mechanism placed cavity is connected with right adjusting block, and the rotation of adjusting screw rod drives left adjusting block and right adjusting block to move in the same direction simultaneously
It is dynamic, realize mutually drawing close between upper cover plate and lower cover plate or separate.
6. fusion device according to claim 1, it is characterised in that: further include backing pin, the adjusting screw rod include nut and
Screw rod offers pin retaining groove on the nut, and end face is equipped with hexagonal driver slot, and the left and right sides of the fixed block is opened respectively
Equipped with the nut fixation hole and screw rod fixation hole for placing nut and screw rod tail, corresponding pin retaining groove is additionally provided on the fixed block
The pin hole at place, the backing pin pass through the pin hole and are inserted into the pin retaining groove, limit moving left and right for the adjusting screw rod.
7. fusion device according to claim 6, it is characterised in that: the adjusting screw rod is equipped with length in inside along its length
The one end in hole, the long hole is communicated with the outside by screw rod, nut, and the implantation being connected to the long hole is arranged on the screw rod
Object outlet.
8. fusion device according to claim 1, it is characterised in that: the two sides up and down of the fixed block are respectively equipped with limit
Slot, the front and rear sides of the upper cover plate are respectively equipped with the limited block with limiting slot cooperation, the front and rear sides point of the lower cover plate
The limited block that She You not cooperate with limiting slot.
9. fusion device according to claim 1, it is characterised in that: be respectively equipped with plant on the front and rear sides face of the fixed block
Bone window mouth, the fixed block are equipped with instrument fixing groove, the upper table of the upper cover plate on the side for being equipped with nut fixation hole side
Non-slip groove is respectively equipped on face and the lower surface of the lower cover plate.
10. according to claim 1 to the application method of fusion device described in any one of 9 claims, it is characterised in that: including
Following steps:
(1) fusion device is in closed configuration；
(2) ready bone implant is implanted into from bone grafting window；
(3) instrument fixing groove is inserted the instrument into, fusion device is fixed；
(4) fusion device is inserted between vertebral plate；
(5) instrument is rotated clockwise, is stopped rotating after so that upper cover plate is strutted the height of needs with lower cover plate；
(6) removal equipment squeezes into remaining bone implant by the long hole of adjusting screw rod.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201910126330.8A CN109758271B (en) | 2019-02-20 | 2019-02-20 | Fusion device |
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|---|---|---|---|
| CN201910126330.8A CN109758271B (en) | 2019-02-20 | 2019-02-20 | Fusion device |
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| CN109758271A true CN109758271A (en) | 2019-05-17 |
| CN109758271B CN109758271B (en) | 2024-05-14 |
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Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN111227997A (en) * | 2019-11-29 | 2020-06-05 | 珠海维尔康生物科技有限公司 | Hollow distractable intervertebral fusion cage |
| CN112120836A (en) * | 2020-09-01 | 2020-12-25 | 珠海维尔康生物科技有限公司 | Height-adjustable high-stability intervertebral fusion device capable of supplementing and pressurizing bone grafting |
| CN112426250A (en) * | 2019-08-26 | 2021-03-02 | 上海凯利泰医疗科技股份有限公司 | Cervical vertebra self-stabilization type fusion cage, and holder and system thereof |
| CN113143549A (en) * | 2021-04-26 | 2021-07-23 | 上海三友医疗器械股份有限公司 | Lateral approach fusion device |
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| CN112426250A (en) * | 2019-08-26 | 2021-03-02 | 上海凯利泰医疗科技股份有限公司 | Cervical vertebra self-stabilization type fusion cage, and holder and system thereof |
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| CN112120836A (en) * | 2020-09-01 | 2020-12-25 | 珠海维尔康生物科技有限公司 | Height-adjustable high-stability intervertebral fusion device capable of supplementing and pressurizing bone grafting |
| CN113143549A (en) * | 2021-04-26 | 2021-07-23 | 上海三友医疗器械股份有限公司 | Lateral approach fusion device |
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