CN110025412A - The minimally invasive expanding Invasive lumbar fusion device of novel cervical vertebra under a kind of Percutaneous endoscopic - Google Patents
The minimally invasive expanding Invasive lumbar fusion device of novel cervical vertebra under a kind of Percutaneous endoscopic Download PDFInfo
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- CN110025412A CN110025412A CN201910422389.1A CN201910422389A CN110025412A CN 110025412 A CN110025412 A CN 110025412A CN 201910422389 A CN201910422389 A CN 201910422389A CN 110025412 A CN110025412 A CN 110025412A
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- fusion device
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- sliding block
- cervical vertebra
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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
- A61F2/46—Special tools or methods for implanting or extracting artificial joints, accessories, bone grafts or substitutes, or particular adaptations therefor
- A61F2/4603—Special tools or methods for implanting or extracting artificial joints, accessories, bone grafts or substitutes, or particular adaptations therefor for insertion or extraction of endoprosthetic joints or of accessories thereof
- A61F2/4611—Special tools or methods for implanting or extracting artificial joints, accessories, bone grafts or substitutes, or particular adaptations therefor for insertion or extraction of endoprosthetic joints or of accessories thereof of spinal prostheses
Abstract
The invention discloses a kind of minimally invasive expanding Invasive lumbar fusion devices of novel cervical vertebra under Percutaneous endoscopic, comprising: upper mounted plate, bottom plate and is located in expanding mechanism between the two, the top surface of upper mounted plate and the bottom surface of bottom plate are equipped with several fixed teeth；Expanding mechanism includes: that lifting external member, the first sliding block, the second sliding block and a thread spindle, upper mounted plate and bottom plate are symmetrical arranged about thread spindle.It has the beneficial effect that fusion device of the invention is helped to realize and carries out minimally invasive cervical vertebra bone graft fusion in full Microendoscopic, the fusion device is a kind of novel minimally invasive expanding Invasive lumbar fusion device of full Microendoscopic, design size can be placed in intervertenral space by 4mm work sleeve, and it can lift and fold by the liter that turn side thread spindle controls fusion device under mirror, play the role of supporting vertebral plate, expansion intervertenral space up and down, the further expansion indication of full endoscope cervical operation, is the innovation of Cervical Fusion technology.
Description
Technical field
The present invention relates to a kind of Invasive lumbar fusion devices, and in particular to the minimally invasive expanding intervertebral of novel cervical vertebra under a kind of Percutaneous endoscopic
Fusion device belongs to medical aid technical field.
Background technique
Cervical spondylosis is to cause the main reason of cervical pain (Neck Pain), cervical spondylosis (Cervical
Spondylosis, CS) specifically refer to cause because of cervical intervertebral disk retrogression pathological changes and its secondary articuli intervertebrales regression spinal cord, nerve,
The structures such as blood vessel are pressurized and show a series of clinical symptoms and sign.As aging of population and " race of bowing " are continuously increased,
The illness rate of CS ramps, and becomes global public health hot issue.This disease first choice conservative therapy, conservative therapy are then examined in vain
Consider operative treatment.But traditional open surgery therapy there are wounds it is big, the time is long, bleeding is more, complication is more the deficiencies of it
Place, and the trend of current operative treatment is finite process, precision and minimally invasiveization.
Over nearly more than 20 years, the minimal invasive techniques for treating cervical spondylosis obtain fast development.Ruetten etc. respectively at 2007,
Report is through the full Microendoscopic way of escape of 5.9mm notch, preceding road cervical discectomy technology (Percutaneous within 2008
Endoscopic Cervical Disctomy, PECD), have wound in art small, movable without postoperative cervical pain, preservation spinal
Many advantages, such as spending, is low-cost, is the primary real distillation for the treatment of of cervical spondylopathy technology.Generally speaking, PECD mainly has following
Advantage: art area can fast 1. be entered using small notch；2. realizing 360 ° of art area by being sequentially inserted into expansion pipe and service aisle
It struts, avoids the Surrounding muscles expansion in small notch process-exposed and block visual area；3. reducing the damage that art district's groups are knitted, lose
Blood is few；4. postoperative pain mitigates；5. avoiding postoperative pseudarthrosis caused by cervical vertebra open surgery to be formed, merge neighbouring section intervertebral
The complication such as disc degradation and operative approach hemotoncus occur；6. low-cost.
But as the further development of PECD technology also exposes deficiency, such as the patient with cervical Spondylopathy for merging cervical spine instabily, warp
Intervertebral fusion equipment and relevant art be there is no under mirror after the operation of intradermal mirror Cervical vertebra disk to realize stabilization.Clinically some
Patient usually merges cervical spine instabily, and simple Nuclectomy not can solve cervical spine instabily, can not thoroughly solve patient condition；Meanwhile
Preceding road cervical vertebra Percutaneous endoscopic is postoperative, and there are Cage subsidence risks, there is adverse effect to cervical intervertebral disk and Human Cervical Spine Modeling.
Percutaneous endoscopic Cervical vertebra resection of nucleus pulposus can not treat the cervical spondylosis for merging cervical spine instabily, so that this some cases still needs to row and opens
It puts and fixes fusion in cervical vertebra bone grafting, how to implement spinal fusion while the decompression of Percutaneous endoscopic Cervical vertebra is also to need to solve
Certainly the problem of.
Sang-Ho Lee was reported in 2007 has successfully implemented the treatment of cervical vertebra B-Twin stabilizer under Percutaneous endoscopic technology
27 cervical disc herniations with cervical spine instabily.This is technological innovation truly, Percutaneous endoscopic technology and
The combination of intervertebral " class fusion " technology, has accomplished maximum reservation for cervical spine soft tissue and stability, simultaneously for neck
The case of vertebra shakiness realizes the stabilization under 1cm operative incision.However B-Twin may expand interbody stabilizer device that be designed as polypody swollen
Expanding structure, is polypody point contact with soleplate after expansion, this makes contact point stress larger, and easy hernia enters in centrum；B-Twin
Inflatable interbody stabilizer device is different with the design concept of Invasive lumbar fusion device without hollow bone grafting slot, is not able to satisfy the item of intervertebral fusion
Part is unable to reach real interbody stabilizer.Thus, in recent years, which, which has clinically quit listing, abandons.Therefore, urgently
It needs to design a kind of Invasive lumbar fusion device that can be used under cervical vertebra percutaneous endoscopic, could really realize the minimally invasive for the treatment of of cervical spondylopathy
Fusion.
Summary of the invention
To solve the deficiencies in the prior art, the purpose of the present invention is to provide the minimally invasive expansions of novel cervical vertebra under a kind of Percutaneous endoscopic
Formula Invasive lumbar fusion device is opened, cervical vertebra bone grafting fusion is carried out using percutaneous endoscopic technology, makes Cervical Fusion technology minimally invasiveization, remove from office
New existing modus operandi, further expansion percutaneous endoscopic operative indication.
In order to achieve the above objectives, the present invention adopts the following technical scheme that:
The minimally invasive expanding Invasive lumbar fusion device of novel cervical vertebra under a kind of Percutaneous endoscopic, comprising:
Upper mounted plate, bottom plate and it is located in expanding mechanism between the two, the top surface of fixed plate and lower fixation
The bottom surface of plate is equipped with several fixed teeth；
The expanding mechanism includes: lifting external member, the first sliding block, the second sliding block and a thread spindle, fixed plate and lower solid
Fixed board is symmetrical arranged about thread spindle；
The lifting external member is made of two pairs of lifting arms, and one end of the lifting arm is connect with upper mounted plate/bottom plate, another
End is connect with the first sliding block/second sliding block, and the end of the thread spindle is equipped with one handle, and the handle drives thread spindle rotation to make
Relative displacement occurs for the first sliding block and the second sliding block to adjust the distance between upper mounted plate and bottom plate, first sliding block
Remain opposing stationary with handle.
Preferably, aforementioned upper mounted plate and bottom plate are integrally formed, comprising: with the axial parallel face of thread spindle
Plate and with the vertically disposed baffle of panel, be formed on the baffle mesh-structured, which can stop sclerotin to distally broadcasting
It dissipates, prevents sclerotin from falling into intraspinal tube through fibrous ring groove.
Preferably, the both ends and middle part of said panel are each formed with multiple fixed teeth, and the fixation tooth at middle part is higher than both ends
Fixed tooth can make fusion device be engaged fixation with vertebral plate on vertebral plate/hypocentrum under upper centrum, prevent fusion device in water by fixed tooth
Square to sliding.
It is highly preferred that when lifting external member is in complete collapse state, the baffle of upper mounted plate and the baffle of bottom plate
Be completely coincident, therefore, the baffle of the baffle of upper mounted plate and bottom plate in vertical direction in the presence of dislocation, in this way could be
Inside and outside overlapping when collapse state, i.e., mentioned-above coincidence.
It is highly preferred that the end of aforementioned handle is formed with the detent that rotating handle is lengthened for connecting, it can in operating process
Lengthening rotating handle is turned with special friction clamp, struts fusion device gradually to proper height.
More preferably, aforementioned two pairs of lifting arms are rigid link and length is consistent, the lifting arm and upper mounted plate, lower solid
An equilateral quadrangle is constituted after fixed board, the first sliding block and the connection of the second sliding block, and can be turned in vertical plane by the center of circle of tie point
It is dynamic, so that the liter for controlling fusion device is lifted and is folded.
More preferably, screw thread is provided in aforementioned first sliding block and the second sliding block and the screw thread of the two is reversed, handle band
When dynamic thread spindle rotation, the first sliding block and handle holding are opposing stationary, the second sliding block threadingly axis axially reciprocating, to change
Become the distance between the first sliding block and the second sliding block.
It is further preferred that foregoing fusion device design size can be worked by 4mm, sleeve is placed in intervertenral space, meets operation need
It asks.
It is further preferred that the panel of aforementioned upper mounted plate and bottom plate is divided equally are as follows: middle part fixed plate and a pair of end
Portion's fixed plate, the end fixed plate is progressive broadening to end certainly with the junction of middle part fixed plate, and solid in the fixed plate of middle part
Fixed tooth two sides are formed with a pair of of waist-shaped hole, and class triangle through hole structure is formed in the end fixed plate and is led in class triangle
Fixed tooth is distributed with by pore structure, so, the occlusal surface under fixed plate and upper centrum on vertebral plate/hypocentrum between vertebral plate is more
Greatly, it is slided in the horizontal direction to be more effectively prevented from fusion device.
The invention has the beneficial effects that:
(1) fusion device of the invention, which is helped to realize, carries out minimally invasive cervical vertebra bone graft fusion in full Microendoscopic, which is
A kind of novel minimally invasive expanding Invasive lumbar fusion device of full Microendoscopic, design size can be placed in intervertenral space by 4mm work sleeve,
And can lift and fold by the liter that turn side thread spindle controls fusion device under mirror, play support vertebral plate, expansion intervertebral up and down
The effect of gap；
(2) it may make that cervical intervertebral fusion is more minimally invasive, economical with the fusion device, expand the complete minimally invasive hand of Microendoscopic cervical vertebra
The indication of art；
(3) the minimally invasive expanding Invasive lumbar fusion device fusion of novel cervical vertebra and traditional warp are used under percutaneous endoscopic of the invention
The open discectomy bone graft fusion of anterior approach is compared, and is greatly reduced surgery cost, is reduced wound, accelerates postoperative health
Multiple, the indication of the full endoscope cervical operation of further expansion, is the innovation of Cervical Fusion technology.
Detailed description of the invention
Fig. 1 is the schematic perspective view of the minimally invasive expanding Invasive lumbar fusion device of novel cervical vertebra under Percutaneous endoscopic of the invention；
Fig. 2 is the main view of the minimally invasive expanding Invasive lumbar fusion device of novel cervical vertebra under Percutaneous endoscopic of the invention；
Fig. 3 is the top view of the minimally invasive expanding Invasive lumbar fusion device of novel cervical vertebra under Percutaneous endoscopic of the invention；
Fig. 4 is the bottom view of the minimally invasive expanding Invasive lumbar fusion device of novel cervical vertebra under Percutaneous endoscopic of the invention；
Fig. 5 is the left view of the minimally invasive expanding Invasive lumbar fusion device of novel cervical vertebra under Percutaneous endoscopic of the invention；
Fig. 6 is the right view of the minimally invasive expanding Invasive lumbar fusion device of novel cervical vertebra under Percutaneous endoscopic of the invention.
The meaning of appended drawing reference in figure: 1, upper mounted plate, 2, bottom plate, 3, panel, 4, baffle, the 5, first sliding block, 6,
Second sliding block, 7, thread spindle, 8, lifting arm, 9, handle, 10, lengthening rotating handle, 11, fixed tooth, 12, waist-shaped hole, 13, class triangle
Shape through-hole structure.
Specific embodiment
Specific introduce is made to the present invention below in conjunction with the drawings and specific embodiments.
In the description of the present invention, it is to be understood that, term " center ", " longitudinal direction ", " transverse direction ", "upper", "lower",
The orientation or positional relationship of the instructions such as "front", "rear", "left", "right", "vertical", "horizontal", "top", "bottom", "inner", "outside" is
It is based on the orientation or positional relationship shown in the drawings, is merely for convenience of description of the present invention and simplification of the description, rather than instruction or dark
Show that signified device or element must have a particular orientation, be constructed and operated in a specific orientation, therefore should not be understood as pair
Limitation of the invention.In addition, term " first ", " second " are used for description purposes only, it is not understood to indicate or imply opposite
Importance.
Referring to Fig. 1 to Fig. 6, the minimally invasive expanding Invasive lumbar fusion device of novel cervical vertebra is suitable for complete under Percutaneous endoscopic of the invention
Microendoscopic carries out minimally invasive cervical vertebra bone graft fusion, and design size can be placed in intervertenral space by 4mm work sleeve, play support
Upper and lower vertebral plate, the effect for expanding intervertenral space.
As shown in Figure 1, the structure of the fusion device includes: upper mounted plate 1, bottom plate 2 and is located between the two
Expanding mechanism, expanding mechanism role are most important comprising: lifting external member, the first sliding block 5, the second sliding block 6 and a spiral shell
Line axis 7, upper mounted plate 1 and bottom plate 2 are symmetrical arranged about thread spindle 7, can adjust 1 He of upper mounted plate by expanding mechanism
Gap between bottom plate 2.
Wherein, upper mounted plate 1 and bottom plate 2 are integrally formed, comprising: with the axial parallel panel 3 of thread spindle 7
With with the vertically disposed baffle 4 of panel 3.Wherein, be equipped with several fixed teeth 11 on panel 3, fixed tooth 11 be divided into both ends and
Middle part, and the fixation tooth 11 at middle part is higher than the fixation tooth 11 at both ends, by fixed tooth 11 can make vertebral plate under fusion device and upper centrum/
Vertebral plate occlusion is fixed on hypocentrum, prevents fusion device from sliding in the horizontal direction.Meanwhile mesh knot is formed on baffle 4
Structure, the baffle 4 can stop sclerotin to distal spread, prevent sclerotin from falling into intraspinal tube through fibrous ring groove.
Lifting external member is made of two pairs of lifting arms 8, and lifting arm 8 is rigid link and length is consistent, as shown in Fig. 2, lifting
Arm 8 constitutes an equilateral quadrangle after connecting with upper mounted plate 1, bottom plate 2, the first sliding block 5 and the second sliding block 6, and can hang down
It is rotated in facing directly by the center of circle of tie point.Specifically, one end of lifting arm 8 is connect with 1/ bottom plate 2 of upper mounted plate, it is another
End is then connect with 5/ second sliding block 6 of the first sliding block, and the end of thread spindle 7 is equipped with one handle 9, drives thread spindle 7 to revolve by handle 9
Turning to make the first sliding block 5 and the second sliding block 6 that relative displacement occur, the shape for the equilateral quadrangle that lifting arm 8 is constituted changes, from
And be provided in the distance between adjustable upper mounted plate 1 and bottom plate 2, the first sliding block 5 and the second sliding block 6 screw thread and
The screw thread of the two is reversed, and when handle 9 drives thread spindle 7 to rotate, the first sliding block 5 remains opposing stationary with handle 9, and second is sliding
Threadingly 7 axially reciprocating of axis of block 6, to change the distance between the first sliding block 5 and the second sliding block 6.
It should be noted that when lifting external member is in complete collapse state, the baffle 4 and bottom plate 2 of upper mounted plate 1
Baffle 4 be completely coincident, therefore, the baffle 4 of the baffle 4 of upper mounted plate 1 and bottom plate 2 is the presence of dislocation in vertical direction
, in this way could the inside and outside overlapping in collapse state, i.e., mentioned-above coincidence.
In order to improve the convenience of operation, the end of aforementioned handle 9 is formed with the card that rotating handle 10 is lengthened for connecting
, it can be turned with special friction clamp in operating process and lengthen rotating handle 10, strut fusion device gradually to proper height.
As a further improvement of the present invention, as shown in Figure 3 and Figure 4, the panel 3 of upper mounted plate 1 and bottom plate 2 is divided equally
Are as follows: middle part fixed plate and a pair of end portions fixed plate, end fixed plate is progressive broadening to end certainly with the junction of middle part fixed plate,
And 11 two sides of tooth are fixed in the fixed plate of middle part and are formed with a pair of of waist-shaped hole 12.Class triangle through hole knot is formed in the fixed plate of end
Structure 13 and fixed tooth 11 is distributed with by class triangle through hole structure 13, so, vertebral plate/lower vertebra under fixed plate and upper centrum
Occlusal surface on body between vertebral plate is bigger, slides in the horizontal direction to be more effectively prevented from fusion device.It is described here
" class triangle through hole structure 13 " refer to that its structure of the through-hole is similar to triangle.
For a better understanding of the present invention, the use process of the expanding Invasive lumbar fusion device is carried out as follows briefly below
It is bright:
(1) it being placed in endoscope according to the operating procedure of PECD and principle, the corresponding intervertenral space of exposure extracts corresponding segment interverbebral disc,
Vertebral plate up and down is post-processed, makes to see a small amount of oozing of blood；
(2) scope is extracted, through work sleeve by fusion device distal end (one end far from handle 9) of the invention to being built into intervertebral
Gap is inserted into scope, adjusts fusion device to suitable position with the nucleus pulposus clamp of different model；
(3) 9 part of handle is turned clockwise with special friction clamp, strut fusion device gradually to proper height, detect and see fusion
Device implantation is stablized；
(4) by service aisle to intervertenral space implantation is self or allograph bone, after withdraw from scope, layer-by-layer suture notch.
To sum up, the minimally invasive expanding Invasive lumbar fusion device fusion of novel cervical vertebra and biography are used under percutaneous endoscopic of the invention
Comparing through the open discectomy bone graft fusion of anterior approach for system, helps to realize and carries out minimally invasive cervical vertebra plant in full Microendoscopic
Fusion of bone greatly reduces surgery cost, reduces wound, accelerates postoperative rehabilitation, the full endoscope cervical vertebra hand of further expansion
The indication of art is the innovation of Cervical Fusion technology.
In the description of the present invention, it should be noted that unless otherwise clearly defined and limited, term " installation ", " phase
Even ", " connection " shall be understood in a broad sense, for example, it may be being fixedly connected, may be a detachable connection, or be integrally connected；It can
To be mechanical connection, it is also possible to be electrically connected；It can be directly connected, can also can be indirectly connected through an intermediary
Connection inside two elements.For the ordinary skill in the art, above-mentioned term can be understood at this with concrete condition
Concrete meaning in invention.
The basic principles, main features and advantages of the invention have been shown and described above.The technical staff of the industry should
Understand, the above embodiments do not limit the invention in any form, all obtained by the way of equivalent substitution or equivalent transformation
Technical solution is fallen within the scope of protection of the present invention.
Claims (10)
1. the minimally invasive expanding Invasive lumbar fusion device of novel cervical vertebra under a kind of Percutaneous endoscopic characterized by comprising
Upper mounted plate, bottom plate and it is located in expanding mechanism between the two, the top surface of fixed plate and lower fixation
The bottom surface of plate is equipped with several fixed teeth；
The expanding mechanism includes: lifting external member, the first sliding block, the second sliding block and a thread spindle, fixed plate and lower solid
Fixed board is symmetrical arranged about thread spindle；
The lifting external member is made of two pairs of lifting arms, and one end of the lifting arm is connect with upper mounted plate/bottom plate, another
End is connect with the first sliding block/second sliding block, and the end of the thread spindle is equipped with one handle, and the handle drives thread spindle rotation to make
Relative displacement occurs for the first sliding block and the second sliding block to adjust the distance between upper mounted plate and bottom plate, first sliding block
Remain opposing stationary with handle.
2. the minimally invasive expanding Invasive lumbar fusion device of novel cervical vertebra, feature exist under a kind of Percutaneous endoscopic according to claim 1
In fixed plate and bottom plate are integrally formed, comprising: axially parallel panel and hang down with panel with thread spindle
The baffle being directly arranged is formed on the baffle mesh-structured.
3. the minimally invasive expanding Invasive lumbar fusion device of novel cervical vertebra, feature exist under a kind of Percutaneous endoscopic according to claim 2
In the both ends and middle part of the panel are each formed with multiple fixed teeth, and the fixation tooth at middle part is higher than the fixation tooth at both ends.
4. the minimally invasive expanding Invasive lumbar fusion device of novel cervical vertebra, feature exist under a kind of Percutaneous endoscopic according to claim 2
In when lifting external member is in complete collapse state, the baffle of upper mounted plate and the baffle of bottom plate are completely coincident.
5. the minimally invasive expanding Invasive lumbar fusion device of novel cervical vertebra, feature exist under a kind of Percutaneous endoscopic according to claim 1
In the end of the handle is formed with the detent for lengthening rotating handle for connecting.
6. the minimally invasive expanding Invasive lumbar fusion device of novel cervical vertebra, feature exist under a kind of Percutaneous endoscopic according to claim 1
In two pairs of lifting arms are rigid link and length is consistent.
7. the minimally invasive expanding Invasive lumbar fusion device of novel cervical vertebra, feature exist under a kind of Percutaneous endoscopic according to claim 6
In, the lifting arm constitutes an equilateral quadrangle after connecting with upper mounted plate, bottom plate, the first sliding block and the second sliding block, and
It can be rotated in vertical plane by the center of circle of tie point, so that the liter for controlling fusion device is lifted and folded.
8. the minimally invasive expanding Invasive lumbar fusion device of novel cervical vertebra, feature exist under a kind of Percutaneous endoscopic according to claim 1
In being provided with screw thread in first sliding block and the second sliding block and the screw thread of the two be reversed.
9. the minimally invasive expanding Invasive lumbar fusion device of novel cervical vertebra, feature exist under a kind of Percutaneous endoscopic according to claim 1
In the fusion device design size can be placed in intervertenral space by 4mm work sleeve.
10. the minimally invasive expanding Invasive lumbar fusion device of novel cervical vertebra under a kind of -9 described in any item Percutaneous endoscopics according to claim 1,
It is characterized in that, the panel of fixed plate and bottom plate is divided equally are as follows: middle part fixed plate and a pair of end portions fixed plate, it is described
End fixed plate is progressive broadening to end certainly with the junction of middle part fixed plate, and fixes tooth two sides in the fixed plate of middle part and be formed with
A pair of of waist-shaped hole is formed with class triangle through hole structure in the end fixed plate and is distributed with by class triangle through hole structure
Fixed tooth.
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| CN113520677A (en) * | 2020-04-13 | 2021-10-22 | 杨明杰 | Minimally invasive endoscopic implantation expandable lumbar interbody fusion cage |
| CN111671554A (en) * | 2020-05-26 | 2020-09-18 | 常州集硕医疗器械有限公司 | Cervical vertebra minimally invasive expansion type interbody fusion cage and use method thereof |
| CN112674916A (en) * | 2020-12-17 | 2021-04-20 | 湖南华翔增量制造股份有限公司 | Interbody fusion cage |
| CN112545723A (en) * | 2020-12-25 | 2021-03-26 | 北京中安泰华科技有限公司 | Intervertebral space height measuring device |
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