CN105796215B - Lumbar intervertebral fusion device can be strutted - Google Patents
Lumbar intervertebral fusion device can be strutted Download PDFInfo
- Publication number
- CN105796215B CN105796215B CN201610365405.4A CN201610365405A CN105796215B CN 105796215 B CN105796215 B CN 105796215B CN 201610365405 A CN201610365405 A CN 201610365405A CN 105796215 B CN105796215 B CN 105796215B
- Authority
- CN
- China
- Prior art keywords
- connecting rod
- adjustable
- bracer
- fixed block
- catch bar
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Active
Links
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
- 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
- A61F2002/30471—Connections or couplings between prosthetic parts, e.g. between modular parts; Connecting elements connected by a hinged linkage mechanism, e.g. of the single-bar or multi-bar linkage type
-
- 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
- A61F2002/30518—Connections or couplings between prosthetic parts, e.g. between modular parts; Connecting elements with possibility of relative movement between the prosthetic parts
-
- 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
- A61F2002/30538—Special structural features of bone or joint prostheses not otherwise provided for adjustable for adjusting angular orientation
Landscapes
- 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 discloses one kind can strut lumbar intervertebral fusion device, and it includes：Main body is strutted, strutting main body includes fixed block and adjustable bracer, and the afterbody of adjustable bracer and the afterbody of fixed block are hinged；Spreading mechanism, spreading mechanism act on the head of adjustable bracer, will pass through action spreading mechanism, so as to adjust the folding angle between adjustable bracer and fixed block.The fusion device of the present invention more meets normal lumbar physiological-curvature after strutting, and effectively can prevent it from rearward sliding, and avoids traditional rectangle fusion device postoperative because rearward shifting and the phenomenon of pressuring nerve again.
Description
Technical field
The present invention relates to one kind can strut lumbar intervertebral fusion device, belong to technical field of medical instruments.
Background technology
At present, lumbar intervertebral fusion is to rebuild spinal stability, correct lumbar vertebrae abnormal load bearing mode and have efficacious prescriptions
Method.1911, Hibs etc. reported the stability of spinal fusion surgery first；1936, Mercer proposed the ideal of spinal fusion
Method is intervertebral fusion；Lumbar Fusion be centered on impaired lumbar vertebrae, the normal vertebra upper from damage zone to it is the next just
Normal vertebra makees bone grafting operation, makes multiple sections that bone connection occur, and is fused into a piece of, one entirety of formation on mechanics, so as to reach
To treatment spinal injury, elimination pain, prevent the purpose of deformity, reconstruction spinal stability and protection spinal nerve.Lumbar Fusion
Art is to treat a basic fundamental of lumbar disease, and from the point of view of long term follow-up data, technique is safely, effectively, it has also become controls
Treat the goldstandard of the spinal diseases such as backbone degenerative disease, unstable spine, deformity of spine.
Its major advantage is：1. motion segment can obtain most stable of interior fixed effect in biomethanics；2. before rebuilding
The performance of post load sharing load, protect fixed effect in the apparatus of rear so that lopsided correction is maintained during healing, and is made
The fatigability fracture of rear apparatus may minimize.Intervertebral Cage and pedicle screw-rod fixed system gradually instead of list at present
Pure bone grafting integration technology and simple nail-plate fixed system, greatly improve intervertebral fusion rate.Simultaneously spinal fusion can be significantly for interior fixation
Fixed loosening, broken nail, the incidence of disconnected rod in reduction, thus good spinal fusion is to maintain the guarantee of effect of easing stress, and
Maintain lumbar vertebrae stabilization, avoid the basic of fixation failure.Now with the fast development of spine surgical technique and internal fixation device,
Lumbar spinal fusion is more and more applied to clinic.
Lumbar Fusion operation mainly include anterior intervertebral fusion art (anterior lumbarinterbody fusion,
ALIF), way of escape interbody fusion (posterior lumbar interbodyfusion, PLIF), intervertebral spinal fusion intervertebral fusion
Art (transforaminal lumbar interbody fusion, TLIF).Clinically also pass through frequently with intervertebral fusion and PLT
With reference to method, referred to as 360 degree of fusions (circumferential fusion, CF) and obtain greater advance in recent years
Minimally invasive fusion.
Either preceding road waist interbody fusion, Interbody fusion art, intervertebral spinal fusion interbody fusion, or lumbar vertebrae
Intervertebral fusion on the outside of pole, used all fusion devices are provided to play and the Intervertebral space of patient can be strutted effectively
And recover disc height, provide the Initial stability in biomethanics to lesion lumbar vertebrae.
It has been put into but above-mentioned fusion device is all monolithic entity composition, is shaped as rectangle, kidney row etc., during operation certain
Difficulty, also, due to normal vertebral body gap be it is front wide and rear narrow, general rectangle fusion device be put into fusion device implantation after, not
Can be with normal vertebral body gap it is front wide and rear narrow match, thus easily occur during patient activity fusion device toward rear slide, produce again
The complication of pressuring nerve.
The content of the invention
The technical problems to be solved by the invention are the defects of overcoming prior art, there is provided one kind can strut lumbar intervertebral and melt
Clutch, fusion device of the invention more meets normal lumbar physiological-curvature after strutting, and effectively can prevent it from rearward sliding, and avoids
Traditional rectangle fusion device it is postoperative because rearward shift and the phenomenon of pressuring nerve again.
In order to solve the above-mentioned technical problem, the technical scheme is that：One kind can strut lumbar intervertebral fusion device, and it is wrapped
Include：
Main body is strutted, the main body that struts includes fixed block and adjustable bracer, the afterbody and fixed block of the adjustable bracer
Afterbody be hinged；
Spreading mechanism, the spreading mechanism act on the head of the adjustable bracer, and machine is strutted described in action will pass through
Structure, so as to adjust the folding angle between the adjustable bracer and fixed block.
Further provide a kind of optimal folding angle of adjustable bracer, head and the fixed block of the adjustable bracer
Between folding angle be 0 °~10 °.
Placed further for convenient, so as to reduce nerve root injury probability, when between the adjustable bracer and fixed block
Folding angle when being 0 °, the knot of the head of the adjustable bracer and the head one similar bullet shape of composition of the fixed block
Structure.
The lower wall surface of lumbar vertebrae, the upper wall surface of the fixed block and/or the adjustable bracer is bitten further for it is facilitated
Upper setting pawl structure.
Further, the surface of the fixed block and/or the surface of the adjustable bracer are provided with hydroxyapatite coating layer.
A kind of concrete structure of spreading mechanism is further provided, the spreading mechanism includes connecting rod and catch bar, connecting rod
One end and the head of the adjustable bracer be hinged, one end of the other end of connecting rod and the catch bar is hinged, catch bar slide fit
Strutting in main body, when catch bar slides along the cephlad-caudal for strutting main body, and drivening rod make connecting rod act on it is described can
When adjusting the head of bracer, the folding angle adjustable between the adjustable bracer and fixed block.
Catch bar is promoted further for convenient, the spreading mechanism also includes screw rod, and described strut in main body is provided with
Screw channel, the screw rod are threadedly attached in screw channel, the other end connection of the screw rod and catch bar, so as to logical
Cross screw the screw rod make the catch bar along strut main body cephlad-caudal slide.
Further for making to strengthen the support to it after adjustable block supports, it is provided with the catch bar and struts projection,
It is in that the curved surface of shape is gradually drawn close to fixed Block direction to be provided with the adjustable bracer towards the cephalad direction for strutting main body,
It is described strut it is raised abut cooperation with the curved surface, when catch bar along strut main body cephalad direction slide when, it is described to strut
Projection, which is acted on the curved surface, makes it strut the middle part of adjustable bracer, and during strutting, the middle part ratio of adjustable bracer can
Adjust the head of bracer low.
Further for the hinged place stress for avoiding connecting rod and catch bar, so that the phenomenon of bearing pin fracture, the connecting rod
The other end be hinged by bearing pin and the catch bar, and the size of pin shaft hole for interting bearing pin on the catch bar compares bearing pin
Size it is big, one is additionally provided with the catch bar and supports connecting rod face, when the rear end face of bearing pin is in contact with the wall of pin shaft hole,
Described support on connecting rod face and the connecting rod has interval between the position corresponding to connecting rod face；When catch bar is along support
It is described to support connecting rod face and institute when opening the cephalad direction of main body and sliding into the front end face of the bearing pin and be in contact with the wall of pin shaft hole
State on connecting rod with described to the corresponding location contacts in connecting rod face, so as to which motive force is transferred on connecting rod from catch bar.
Further for the hinged place stress for avoiding connecting rod and adjustable bracer, so that connector fracture in hinged place shows
As, a transmission curved surface is provided with the adjustable bracer, an abutting region is provided with the outer wall on the head of the connecting rod, it is described
Transmit curved surface to be engaged with the region that abuts, so as to which motive force is transferred on adjustable bracer from connecting rod.
Further, it is provided with bone implant holes in the middle part of the middle part of the fixed block and/or adjustable bracer；It is and/or described solid
The two sides for determining the two sides on the head of block and/or the head of adjustable bracer are provided with bone uptake hole.
Further, one is provided with the rear portion of the fixed block and is used for the groove that directionality is held when fusion device is implanted into centrum.
After employing above-mentioned technical proposal, by screwing screw rod, so as to promote catch bar to slide strutting in main body, so as to
Drivening rod acts, and makes adjustable bracer relative to fixed block opening and closing；It is provided with addition on catch bar and struts projection, for jacks up
The middle part of adjustable bracer, the intensity after its expansion is strengthened, originally can strut lumbar intervertebral fusion device trapezoidal can strut, and have after strutting
Gradient narrow after height, more meets lumbar vertebrae physiological curve, disc height can strut regulation, add fusion device and end before certain
Plate contact area and pressure, improve intervertebral fusion rate, and effective recovery of disc height is relative to expand lateral crypt so that
Nerve root also obtains indirect decompression, and fusion device of the invention can effectively prevent from rearward sliding after strutting because fusion device is front wide and rear narrow
Move, avoid traditional rectangle fusion device postoperative because rearward shifting and the phenomenon of pressuring nerve again.
Brief description of the drawings
Fig. 1 struts structural representation of the lumbar intervertebral fusion device in closure state for the present invention's；
Fig. 2 is Fig. 1 top view；
Fig. 3 is Fig. 2 A-A sectional views；
Fig. 4 struts structural representation of the lumbar intervertebral fusion device in softened state for the present invention's；
Fig. 5 is Fig. 4 top view；
Fig. 6 is Fig. 5 B-B sectional views.
Embodiment
In order that present disclosure is easier to be clearly understood, it is right below according to specific embodiment and with reference to accompanying drawing
The present invention is described in further detail.
As shown in figs. 1 to 6, one kind can strut lumbar intervertebral fusion device, and it includes：
Main body is strutted, the main body that struts includes fixed block 1 and adjustable bracer 2, the afterbody of the adjustable bracer 2 and fixation
The afterbody of block 1 is hinged；The afterbody of the adjustable bracer 2 can be hinged axially be hinged by one with the afterbody of fixed block 1；
Spreading mechanism, the spreading mechanism act on the head of the adjustable bracer 2, and machine is strutted described in action will pass through
Structure, so as to adjust the folding angle between the adjustable bracer 2 and fixed block 1.
As shown in Fig. 3,6, the folding angle between the head of the adjustable bracer 2 and the fixed block 1 is 0 °~10 °,
This folding angle is the optimal folding angle of this fusion device.
As shown in figure 3, when the folding angle between the adjustable bracer 2 and fixed block 1 is 0 °, the adjustable bracer 2
The head of head and the fixed block 1 form the structure of a similar bullet shape, its placement is easy in such settings, reduction
Nerve root injury probability.
As shown in figs. 1 to 6, pawl is set on the lower wall surface of the upper wall surface of the fixed block 1 and/or the adjustable bracer 2
Structure, so advantageously in preventing it from sliding backward.
The surface of the fixed block 1 and/or the surface of the adjustable bracer 2 are provided with hydroxyapatite coating layer.
As shown in Fig. 3,6, the spreading mechanism includes connecting rod 3 and catch bar 4, one end of connecting rod 3 and the adjustable bracer 2
Head be hinged, one end of the other end of connecting rod 3 and the catch bar 4 is hinged, and the slide fit of catch bar 4 is being strutted in main body, when pushing away
Lever 4 is slided along the cephlad-caudal for strutting main body, and drivening rod 3 makes connecting rod 3 act on the head of the adjustable bracer 2
When, the folding angle adjustable between the adjustable bracer 2 and fixed block 1.
As shown in Fig. 3,6, the spreading mechanism also includes screw rod 5, and described strut is provided with screw channel in main body, described
Screw rod 5 is threadedly attached in screw channel, and the screw rod 5 is connected with the other end of catch bar 4, so as to described by screwing
Screw rod 5 makes the catch bar 4 be slided along the cephlad-caudal for strutting main body.The afterbody of screw rod 5, which is provided with, screws connecting hole, is used for
Part is screwed with outside to coordinate, rotary screw 5.The head of screw rod 5 is provided with connecting shaft, and the afterbody of catch bar 4 is provided with connecting hole,
Connecting shaft is plugged in connecting hole, and screw rod 5 is by the mating connection of connecting shaft and connecting hole on the other end of catch bar 4.Support
Open and sliding groove is provided with main body, the cross section of the sliding groove can be square structure, and the slide fit of catch bar 4 is in sliding groove
It is interior, to prevent that catch bar follows spinning movement in 5 spinning movement of screw rod, slided so as to limit catch bar 4 in sliding groove
It is dynamic.
As shown in Fig. 3,6, it is provided with the catch bar 4 and struts projection 41, be provided with the adjustable bracer 2 towards institute
The cephalad direction for strutting main body is stated in the curved surface 21 that shape is gradually drawn close to the direction of fixed block 1, it is described to strut projection 41 and the song
Face 21, which abuts, to be coordinated, and when catch bar 4 slides along the cephalad direction for strutting main body, the projection 41 that struts acts on the song
It is set to strut the middle part of adjustable bracer 2 on face 21, and during strutting, the head of the middle part of adjustable bracer 2 than adjustable bracer 2
It is low.
As shown in Fig. 3,6, the other end of the connecting rod 3 is be hinged by bearing pin 6 and the catch bar 4, and the promotion
It is bigger than the size of bearing pin 6 to intert the size of the pin shaft hole of bearing pin 6 on bar 4, one is additionally provided with the catch bar 4 and supports connecting rod face
42, when the rear end face of bearing pin 6 is in contact with the wall of pin shaft hole, described support on connecting rod face 42 and the connecting rod 3 is supported with described
There is interval between the corresponding position in connecting rod face 42；When catch bar 4 slides into the pin along the cephalad direction for strutting main body
When the front end face of axle 6 is in contact with the wall of pin shaft hole, described support on connecting rod face 42 and the connecting rod 3 supports connecting rod face 42 with described
Corresponding location contacts, so as to which motive force is transferred on connecting rod 3 from catch bar 4.
As shown in Fig. 3,6, a transmission curved surface 22 is provided with the adjustable bracer 2, on the outer wall on the head of the connecting rod 3
It is provided with an abutting region 31, the transmission curved surface 22 is engaged with the region 31 that abuts, so that by motive force from connecting rod 3
It is transferred on adjustable bracer 2.
The middle part of the fixed block 1 and the middle part of adjustable bracer 2 are provided with bone implant holes 20；The bone implant holes 20 is
Oval-shaped pore structures, the head of the fixed block 1 and the head of adjustable bracer 2 are provided with bone uptake hole 10, on the fixed block 1
Bone uptake hole 10 be arranged in the side wall on the head of fixed block 1, the bone uptake hole 10 on the adjustable bracer 2 is arranged on adjustable support
In side wall on block 2.
One is provided with the rear portion of the fixed block 1 and is used for the groove 101 that directionality is held when fusion device is implanted into centrum.
The operation principle of the present invention is as follows：
By screwing screw rod 5, so as to promote catch bar 4 to slide strutting in main body, so as to which drivening rod 3 acts, making can
Bracer 2 is adjusted relative to the opening and closing of fixed block 1；It is provided with addition on catch bar 4 and struts projection 41, before the action of drivening rod 3,
Line jacks up the middle part of adjustable bracer 2 by strutting projection 41, strengthens the intensity after its expansion, then dynamic by connecting rod 3 again
Make, making, which originally can strut lumbar intervertebral fusion device, trapezoidal to strut, and narrow gradient, more meets lumbar vertebrae after high before having after strutting necessarily
Physiological curve, disc height can strut regulation, add fusion device and soleplate contact area and pressure, improve intervertebral fusion
Rate, effective recovery of disc height are relative to expand lateral crypt so that nerve root also obtains indirect decompression, and of the invention melts
Clutch can effectively prevent from rearward sliding after strutting because fusion device is front wide and rear narrow, avoid traditional rectangle fusion device postoperative because to
Rear shifts and the phenomenon of pressuring nerve again.
The present invention can be in direct-view or minimally invasive lower progress, and operation safety is simple to operate, suitable for PLIF, TLIF etc..
Particular embodiments described above, pair present invention solves the technical problem that, technical scheme and beneficial effect carry out
It is further described, should be understood that the specific embodiment that the foregoing is only the present invention, is not limited to this
Invention, within the spirit and principles of the invention, any modification, equivalent substitution and improvements done etc., should be included in this hair
Within bright protection domain.
Claims (8)
1. one kind can strut lumbar intervertebral fusion device, it is characterised in that it includes：
Main body is strutted, the main body that struts includes fixed block (1) and adjustable bracer (2), and the afterbody of the adjustable bracer (2) is with consolidating
The afterbody for determining block (1) is hinged；
Spreading mechanism, the spreading mechanism act on the head of the adjustable bracer (2), and machine is strutted described in action will pass through
Structure, so as to adjust the folding angle between the adjustable bracer (2) and fixed block (1)；
The spreading mechanism includes connecting rod (3) and catch bar (4), and one end of connecting rod (3) and the head of the adjustable bracer (2) are cut with scissors
Connect, one end of the other end and the catch bar (4) of connecting rod (3) is hinged, and catch bar (4) slide fit is being strutted in main body, works as promotion
Bar (4) slides along the cephlad-caudal for strutting main body, and drivening rod (3) makes connecting rod (3) act on the adjustable bracer (2)
During head, the folding angle adjustable between the adjustable bracer (2) and fixed block (1)；
It is provided with and struts raised (41) on the catch bar (4), is provided with the adjustable bracer (2) towards described and struts main body
Cephalad direction be in that the curved surface (21) of shape is gradually drawn close to fixed block (1) direction, it is described to strut raised (41) and the curved surface
(21) abut and coordinate, when catch bar (4) slides along the cephalad direction for strutting main body, the projection (41) that struts acts on institute
State makes it strut the middle part of adjustable bracer (2) on curved surface (21), and during strutting, the middle part of adjustable bracer (2) is than adjustable
The head of bracer (2) is low；
The other end of the connecting rod (3) is be hinged by bearing pin (6) and the catch bar (4), and interts on the catch bar (4)
The size of the pin shaft hole of bearing pin (6) is bigger than the size of bearing pin (6), and one is additionally provided with the catch bar (4) and supports connecting rod face (42),
When the rear end face of bearing pin (6) is in contact with the wall of pin shaft hole, it is described support on connecting rod face (42) and the connecting rod (3) with it is described
It is spaced to having between connecting rod face (42) corresponding position；When catch bar (4) slides into along the cephalad direction for strutting main body
It is described to support on connecting rod face (42) and the connecting rod (3) and institute when the front end face of the bearing pin (6) is in contact with the wall of pin shaft hole
State to connecting rod face (42) corresponding location contacts, so as to which motive force is transferred on connecting rod (3) from catch bar (4)；
A transmission curved surface (22) is provided with the adjustable bracer (2), being provided with one on the outer wall on the head of the connecting rod (3) supports
Region (31) is connect, the transmission curved surface (22) is engaged with the region (31) that abuts, so as to which motive force be passed from connecting rod (3)
It is handed on adjustable bracer (2).
2. according to claim 1 strut lumbar intervertebral fusion device, it is characterised in that：The head of the adjustable bracer (2)
Folding angle between portion and the fixed block (1) is 0 °~10 °.
3. according to claim 1 strut lumbar intervertebral fusion device, it is characterised in that：When the adjustable bracer (2) with
When folding angle between fixed block (1) is 0 °, the head of the adjustable bracer (2) forms with the head of the fixed block (1)
One similar to bullet shape structure.
4. according to claim 1 strut lumbar intervertebral fusion device, it is characterised in that：The upper wall of the fixed block (1)
Pawl structure is set on the lower wall surface of face and/or the adjustable bracer (2).
5. according to claim 1 strut lumbar intervertebral fusion device, it is characterised in that：The surface of the fixed block (1)
And/or the surface of the adjustable bracer (2) is provided with hydroxyapatite coating layer.
6. according to claim 1 strut lumbar intervertebral fusion device, it is characterised in that：The spreading mechanism also includes spiral shell
Bar (5), described strut are provided with screw channel in main body, the screw rod (5) is threadedly attached in screw channel, the spiral shell
Bar (5) is connected with the other end of catch bar (4), so as to make the catch bar (4) along strutting master by screwing the screw rod (5)
The cephlad-caudal of body is slided.
7. according to claim 1 strut lumbar intervertebral fusion device, it is characterised in that：The middle part of the fixed block (1)
And/or it is provided with bone implant holes (20) in the middle part of adjustable bracer (2)；And/or the two sides on the head of the fixed block (1) and/
Or the two sides on the head of adjustable bracer (2) are provided with bone uptake hole (10).
8. according to claim 1 strut lumbar intervertebral fusion device, it is characterised in that：The rear portion of the fixed block (1)
On be provided with one be used for fusion device be implanted into centrum when directionality hold groove (101).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201610365405.4A CN105796215B (en) | 2016-05-27 | 2016-05-27 | Lumbar intervertebral fusion device can be strutted |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201610365405.4A CN105796215B (en) | 2016-05-27 | 2016-05-27 | Lumbar intervertebral fusion device can be strutted |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN105796215A CN105796215A (en) | 2016-07-27 |
| CN105796215B true CN105796215B (en) | 2017-12-15 |
Family
ID=56452276
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201610365405.4A Active CN105796215B (en) | 2016-05-27 | 2016-05-27 | Lumbar intervertebral fusion device can be strutted |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN105796215B (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN108324359A (en) * | 2018-04-16 | 2018-07-27 | 河北医科大学第三医院 | Progressive dilator after a kind of not broken Tibial osteotomy of holding inside cortex |
Families Citing this family (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN107854197B (en) * | 2017-11-01 | 2023-08-04 | 四川大学华西医院 | Cervical vertebra interbody fusion cage |
| CN109602466B (en) * | 2018-12-17 | 2024-02-06 | 南昌市第一医院 | Cervical vertebra facet joint fusion device |
| CN111714167A (en) * | 2020-06-15 | 2020-09-29 | 中国人民解放军总医院 | Split-assembly type lateral approach lumbar intervertebral fusion system |
| CN112656551A (en) * | 2020-12-18 | 2021-04-16 | 山东威高骨科材料股份有限公司 | Adjustable artificial vertebral body |
Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102740788A (en) * | 2009-11-24 | 2012-10-17 | 21脊椎有限公司 | Spinal fusion cage having post-operative adjustable dimensions |
| CN202568534U (en) * | 2012-04-05 | 2012-12-05 | 田纪伟 | Adjustable lumbar intervertebral fusion cage |
| CN104023675A (en) * | 2011-12-19 | 2014-09-03 | 华沙整形外科股份有限公司 | Expandable Interbody Implant And Methods Of Use |
| CN205866898U (en) * | 2016-05-27 | 2017-01-11 | 瞿玉兴 | Lumbar vertebrae interbody fusion cage can strut |
Family Cites Families (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| WO2014116891A1 (en) * | 2013-01-24 | 2014-07-31 | Biospine, Llc | Adjustable interbody fusion device and method of use |
| US9937053B2 (en) * | 2014-11-04 | 2018-04-10 | Warsaw Orthopedic, Inc. | Expandable interbody implant |
-
2016
- 2016-05-27 CN CN201610365405.4A patent/CN105796215B/en active Active
Patent Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102740788A (en) * | 2009-11-24 | 2012-10-17 | 21脊椎有限公司 | Spinal fusion cage having post-operative adjustable dimensions |
| CN104023675A (en) * | 2011-12-19 | 2014-09-03 | 华沙整形外科股份有限公司 | Expandable Interbody Implant And Methods Of Use |
| CN202568534U (en) * | 2012-04-05 | 2012-12-05 | 田纪伟 | Adjustable lumbar intervertebral fusion cage |
| CN205866898U (en) * | 2016-05-27 | 2017-01-11 | 瞿玉兴 | Lumbar vertebrae interbody fusion cage can strut |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN108324359A (en) * | 2018-04-16 | 2018-07-27 | 河北医科大学第三医院 | Progressive dilator after a kind of not broken Tibial osteotomy of holding inside cortex |
Also Published As
| Publication number | Publication date |
|---|---|
| CN105796215A (en) | 2016-07-27 |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| CN205866898U (en) | Lumbar vertebrae interbody fusion cage can strut | |
| CN105796215B (en) | Lumbar intervertebral fusion device can be strutted | |
| US10667922B2 (en) | Expandable interbody fusion implant | |
| US7500992B2 (en) | Distractable body augmenter capable of being planted through a pedicle for vertebral body reconstruction | |
| CN109758272B (en) | Distracting fusion cage with adjustable middle bone grafting height | |
| US8632550B2 (en) | System and method for providing surgical access to a spine | |
| CN204971722U (en) | Expandable backbone fuses ware | |
| CN110013366B (en) | Intervertebral fusion device with bone grafting height adjustable | |
| AU2011360240B2 (en) | Expandable interbody fusion implant | |
| CN109938889B (en) | Distraction type fusion cage with bone-grafting height adjustable | |
| CN103610523A (en) | Minimally invasive lateral approach interbody fusion device | |
| CN203662946U (en) | Minimally invasive lateral approach interbody fusion cage | |
| AU2004100626A4 (en) | Body augmenter capable of being planted through a pedicle for vertebral body reconstruction | |
| CN105232191A (en) | Intervertebral fusion device capable of being braced in transverse direction | |
| CN106037998A (en) | Variable-angle interbody fusion device | |
| CN106264695A (en) | Lumbar vertebra interspinal strutting device | |
| AU2004100977A4 (en) | Distractable body augmenter capable of being planted through a pedicle for vertebral body reconstruction | |
| CN204708956U (en) | Passing by vertebral pedicle in front of cervical vertebra inner fixing device | |
| CN216021553U (en) | Thoracolumbar spine anterior locking and pressurizing fusion device | |
| CN102599969A (en) | Human single vertebral internal reduction fixing device | |
| WO2020181400A1 (en) | Positionable rotary backstop interbody fusion cage | |
| AU2017281696B2 (en) | Method and apparatus for spinal facet fusion | |
| AU2004100627A4 (en) | Pedicle augmenter for vertebral body reconstruction | |
| CN111888057A (en) | Cervical vertebra posterior joint intertrochanteric dissection type fusion cage | |
| KR200377094Y1 (en) | Distractable Body Augmenter Capable of Being Planted Through a Pedicle for Vertebral Body Reconstruction |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C06 | Publication | ||
| PB01 | Publication | ||
| C10 | Entry into substantive examination | ||
| SE01 | Entry into force of request for substantive examination | ||
| GR01 | Patent grant | ||
| GR01 | Patent grant |