CN101972179A - Adjustable cervical interbody fusion cage - Google Patents
Adjustable cervical interbody fusion cage Download PDFInfo
- Publication number
- CN101972179A CN101972179A CN2010105199738A CN201010519973A CN101972179A CN 101972179 A CN101972179 A CN 101972179A CN 2010105199738 A CN2010105199738 A CN 2010105199738A CN 201010519973 A CN201010519973 A CN 201010519973A CN 101972179 A CN101972179 A CN 101972179A
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- China
- Prior art keywords
- main body
- main board
- agent structure
- locking plate
- lower main
- 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.)
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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
-
- 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
Abstract
The invention discloses an adjustable cervical interbody fusion cage, which is used for solving the problems of low applicability, adjustment incapability and inconvenient intraoperative operation of an interbody fusion cage. The technical scheme is that: the adjustable cervical interbody fusion cage comprises a main body structure and a sliding lock; the main body structure consists of upper and lower main body plates which are separately arranged, and a polyester tensile belt coated around the upper and lower main body plates; a middle part of the main body structure is provided with a bone-accommodating groove; middles parts of two sides of the upper and lower main body plates are symmetrically provided with I-shaped support coupling shafts; upper shafts and lower shafts of the support coupling shafts are rotatably connected with the upper and lower main body plates through a pad respectively; and the sliding lock is positioned at one end of the main body structure. The angle adjustment function of the adjustable cervical interbody fusion cage makes the whole system more accord with the human body structure, facilitates the arrangement of the system, and integrates the system into a support structure of the vertebral column to accord with the human body mechanics, and the excellent postoperative fusion also reduces hazards of fracture and removal of an anterior cervical spine steel plate and a bolt.
Description
Technical field
The present invention relates to a kind of medical operation utensil,, belong to field of medical article technology especially for the adjustable cervical spine Invasive lumbar fusion device of anterior cervical operation.
Background technology
Cervical spondylotic myelopathy and cervical spondylotic radiculopathy are commonly encountered diseases, the frequently-occurring diseases of mid-aged population, and along with the change of life style, its sickness rate also improves year by year, and present the trend of rejuvenation.The pathogenesis of cervical spondylosis is outstanding backward or interior spinal cord and the nerve root of vertebral body trailing edge hyperosteogeny formation hyperosteogeny compressing cervical spinal canal behind the intervertebral disc degradation, because a little less than the neurocyte in the myeloid tissue is highly brittle, oppress function of nervous system that pathological change such as caused hypoxic-ischemic causes lose irreversible.Therefore answer the early operation treatment to remove compressing for cervical spondylotic myelopathy, also should take positive operative treatment for the root cervical spondylosis of serious symptom.Anterior cervical decompression bone graft fusion (being called for short ACDF) is the standard procedures method for the treatment of cervical spondylotic myelopathy and cervical spondylotic radiculopathy at present clinically.Its principle is the vertebral body through outstanding intervertebral disc, outgrowth hyperosteogeny even whole narrow sections of cervical vertebra excision, after excision causes laminated structure, prop up a support bone piece or an Invasive lumbar fusion device (Cage or titanium net) in implanting between the sections up and down of pathological changes, with height and the sagittal sequence of keeping intervertebral.(material is a polyether-ether-ketone, and is PEEK) because of its good biocompatibility, easy to use, becomes the new material that is applied to spinal surgery in recent years for described titanium cylinder mould and cage.Titanium cylinder mould and cage are hollow structure, can fill sclerotin therebetween and the stability of spine structure is provided.The spongy bone of excision vertebral body can satisfy the filling of cylinder mould or cage in the art.Autologous ilium and titanium net follow-up investigation at a specified future date is shown: titanium cylinder mould and cage are better than ilium at the long-term effect of keeping aspect vertebral height and the lordosis, and vertebral height at a specified future date is lost not obvious, has progressively replaced now from three cortical bones of body.But also there are some cases postoperative and long term follow-up to find that cervical curvature recovers poor.By finding to the difficulty analysis that run in the anterior cervical decompression bone-graft fusion operation and to patient's postoperative long term follow-up, titanium cylinder mould and cage itself exist following problem to cause its operability and modulability poor: 1) though cervical vertebra titanium cylinder mould can prune, but mainly judge angle with patient's experience, its operating system does not also quantize its angle, and because the titanium cylinder mould costs an arm and a leg the disposable pruning success of should trying one's best.If implant intervertebral space after find that angle is relatively poor after the shooting of C type arm X-ray is checked in the art, also can not in intervertebral space, do any adjustment to its angle.At this moment, pruning can cause titanium cylinder mould height to lose again, need spend the plenty of time and change the titanium cylinder mould.This impacts operation rhythm undoubtedly, and operating time is prolonged, and increases the patient suffering.And extract the titanium cylinder mould and will inevitably cause damage, postoperative syncretizing effect, disc height are recovered and maintenance generation harmful effect the neck bone soleplate.2) used clinically cervical cage mostly is polyether-ether-ketone (PEEK) material greatly, and it is once property machine-shaping on production line, though can select different models in the art, model is very limited, can not satisfy the multiformity of numerous conditions of patients at all.Can not prune cage in the operation process, promptly can not do any adjustment, not have adjustability its intrinsic height and angle.If find that the cage angle is improper, also can not carry out any adjustment to it behind the implantation intervertebral space, must powerful intervertebral space be also extracted in its hammering gradually and change cage, this can produce vibrations to spinal cord undoubtedly, and can destroy the bone soleplate in various degree.
Summary of the invention
The present invention is used to overcome the defective of above-mentioned prior art and a kind of adjustable cervical spine Invasive lumbar fusion device that satisfies different patient's multiformity needs, is convenient to operation technique is provided.
The alleged problem of the present invention is solved by following technical scheme:
A kind of adjustable cervical spine Invasive lumbar fusion device, its special feature is: comprise agent structure and sliding latch device in the formation, described agent structure constitutes by separating the upper and lower main board that is provided with and being coated on upper and lower main board polyester tension force ligament all around, appearance bone groove is set at the agent structure middle part, the dual-side middle part of described upper and lower main board is symmetrical arranged I shape and supports universal driving shaft, the upward axle and the lower shaft that support universal driving shaft are rotationally connected through liner and upper and lower main board respectively, and described sliding latch device is positioned at an end of agent structure.
Above-mentioned adjustable cervical spine Invasive lumbar fusion device, described sliding latch device is made up of upper and lower locking plate, upper and lower locking plate is affixed upper and lower main board respectively, the ratchet of mutual coupling engagement is set respectively on the upper and lower locking plate contact surface, following locking plate is provided with lock groove, is provided with lock bolt with the lock groove correspondence position on the last locking plate.
Above-mentioned adjustable cervical spine Invasive lumbar fusion device, the last main board upper surface of described agent structure, last main board lower surface are provided with anti-slide teeth.
Above-mentioned adjustable cervical spine Invasive lumbar fusion device, the end face that described agent structure is installed the sliding latch structure is provided with the apparatus connecting hole.
The present invention is directed to existing cervical fusion cage applicable surface narrow, can not adjust and art in problem such as operation inconvenience improve, on the basis of existing cage, set up the side and supported universal driving shaft, peripheral polyester tension force ligament, sliding latch device and anti-skidding design, its main feature is as follows: 1) the present invention is implanted between the vertebral body, constitute three-dimensional fixation, the universal driving shaft structure is supported in the power of providing support in its side, also can play the connection and the axle property motion effect of similar human synovial.This structure can keep or increase disc height, prevents to subside and kyphosis deformity, thereby enlarges intervertebral foramina, alleviates nerve root compression, ligament and fibrous ring elastic force is improved and increase canalis spinalis anteroposterior diameter.The present invention can finish the angular displacement in the certain limit, satisfies the durability requirements of cervical vertebra, and can make and merge sections and reach enough instant stable and reach satisfied combination; 2) the present invention follows the notion of human anatomic structure globality, using its angle regulating function makes whole system more meet organization of human body, not only made things convenient for the arrangement of system, the supporting construction that more makes system incorporate spinal column meets the body mechanics, and the good fusion of postoperative has also reduced the risk factor that throat road steel plate and screw fracture, pull out; 3) the present invention periphery polyester tension force is tough has good toughness, anti-tractive and can provide than high tension, acting as the adjustable Invasive lumbar fusion device angle of restriction at this excessively adjusts, and overcome fully at intervertebral space and adjusted trickle plant bone mass in the angle process deviates to fall into canalis spinalis from the fusion device gap defective, the appearance of having stopped the vertebra pressure symptom of plant bone mass source property; 4) resistance to compression type and tensile type sliding latch device can play reliable fixation, and anti-skidding ratchet can effectively prevent the displacement of agent structure postoperative in the fixing back of locking, have also just avoided following up a case by regular visits to the phenomenon that loss angle changes in the process fully; 5) the present invention is simple to operate, can effectively reduce operating time, hommization more, has satisfied the multifarious needs of different conditions of patients, has solved common problem by simple structure, is easy to grasp promote.
Description of drawings
Fig. 1 is a structural representation of the present invention;
Fig. 2 is the right view of Fig. 1;
Fig. 3 is the vertical view of Fig. 1;
Fig. 4 is the A-A cutaway view of Fig. 3;
Fig. 5 is the B-B cutaway view of Fig. 3;
Fig. 6 goes up the locking plate sketch map;
Fig. 7 is following locking plate sketch map;
Fig. 8 is a resistance to compression type sliding latch device;
Fig. 9 is a tensile type sliding latch device;
Figure 10 is that the present invention implants the cervical intervertebral sketch map.
Number in the figure is expressed as follows: descend main board 1.; 2. go up main board; 3. go up locking plate; 3-1. lock bolt; 3-2. last locking plate ratchet; 4. descend locking plate; 4-1. lock groove; 4-2. following locking plate ratchet; 5. polyester tension force ligament; 6. hold bone groove, 7. hold-down screw; 8. apparatus connecting hole; 9. support universal driving shaft; 10. anti-slop serrations; 11. liner.
The specific embodiment
Referring to Fig. 1-3, the present invention comprises agent structure and sliding latch device in constituting, described agent structure is by main board 2 on two rectangles that separate to be provided with up and down, main board 1 and the polyester tension force ligament 5 that is coated on around the upper and lower main board constitute down, upper and lower main board adopts polyether-ether-ketone (PEEK) material, they form the framework of agent structure, appearance bone groove 6 is set at the agent structure middle part, and described sliding latch device is used to adjust and lock the relative position of main board up and down.
Referring to Fig. 4, Fig. 5, be symmetrical arranged I shape at the dual-side middle part of upper and lower main board and support universal driving shaft 9, the upward axle of this support universal driving shaft and lower shaft form with upper and lower main board through liner 11 respectively and are rotationally connected, and support universal driving shaft 9 and liner 11 and are titanium spare.Support universal driving shaft when providing support power for agent structure, also can play the connection and the motion effect of similar human synovial, make the angle between the upper and lower main board that tens range of accommodation of spending can be arranged, agent structure periphery polyester tension force ligament 5 plays the effect that angle is excessively adjusted between the upper and lower main board of restriction.
Referring to Fig. 1, Fig. 2, Fig. 4, described sliding latch device is installed in an end of agent structure, the sliding latch device is made up of last locking plate 3, following locking plate 4, and in the groove of locking plate, upper and lower locking plate was affixed by trip bolt 7 and upper and lower main board respectively under last locking plate inserted.By Fig. 1, Fig. 4 and Fig. 6, Fig. 7 as seen, ratchet 3-2, the 4-2 of mutual coupling engagement are set respectively on the contact surface of upper and lower locking plate, for ease of slip adjustment and cross spacing and have locking action, infra locking plate 4 is provided with lock groove 4-1, and the position corresponding with lock groove is provided with lock bolt 3-1 on last locking plate 3.By Fig. 8, Fig. 9 as seen, the ratchet direction difference of upper and lower locking plate, it is to decide according to different patients' needs, when reverse as if patient's cervical curvature, uses resistance to compression type sliding latch device shown in Figure 8; If when patient's cervical vertebra is anteflexion, use tensile type sliding latch device shown in Figure 9.
Referring to Fig. 2, on the end face of agent structure installation sliding latch device, be provided with operating theater instruments connecting holes 8 such as introducer, dilator, approximator.
Referring to Fig. 3, Fig. 4, the last main board upper surface of agent structure, last main board lower surface are provided with anti-slop serrations 10.
Effect and concrete applying step when the present invention is used for being correlated with cervical operation are as follows:
1) patient gets dorsal position after anaesthetizing successfully, gets the throat otch after the sterilization shop is single, appears the place ahead of pathological changes cervical vertebra sections and adjacent segment vertebral body the place ahead of lesion segment downwards through the sternocleidomastoid inner edge.
2) adopt conventional ACDF method, intervertebral disc, the hyperosteogeny of excision lesion segment are struck off hypocentrum cartilage endplate cartilage to oozing of blood, keep the bone soleplate, thoroughly are decompressed to spinal cord the place ahead.
3) use height measuring gauge and draw disc height, select the adjustable cervical spine Invasive lumbar fusion device of proper height according to measurement data in the art.The adjustable cervical spine Invasive lumbar fusion device has the angle of regulation range of tens degree, and it can carry out angular adjustment in intervertebral space.In the art decompression place being filled in adjustable Invasive lumbar fusion device from the body spongy bone holds in the bone groove 6.Use introducer and directly it is implanted intervertebral space.
4) after the adjustable cervical spine Invasive lumbar fusion device is implanted the lesion segment intervertebral space, take off introducer, locate by C type arm in cervical vertebra side position X-ray film and the art before patient's art and judge that cervical curvature is excessively anteflexion or curvature is reverse: excessive anteflexion selection approximator and tensile type sliding latch device; Curvature is oppositely then selected dilator and resistance to compression type sliding latch device.
5) patient's cervical vertebra is excessive when anteflexion, in the art approximator is connected with the adjustable cervical spine Invasive lumbar fusion device and carries out angle adjustment, can check the cervical curvature recovery situation and can further adjust by C type arm afterwards.Adjustable Invasive lumbar fusion device sharpest edges are that can carry out whole process by the observation of C type arm dynamically adjusts, and recover the patient physiological curvature its appearance bone groove interface and bone soleplate are fitted tightly.Afterwards tensile type sliding latch device is installed in agent structure one end, and inserts hold-down screw 7 lockings.Adjust tensile type sliding latch device, make between ratchet engagedly, use lock bolt 3-1 its locking and pressurizing.When patient's cervical curvature is reverse, use dilator in the art and carry out angle adjustment, recover the patient physiological curvature, resistance to compression type sliding latch device is installed in agent structure one end and locking, adjust resistance to compression type sliding latch device, make between latch engagedly, use lock bolt 3-1 its locking and pressurizing.
6) the throat road steel plate of selection appropriate length is placed in the place ahead of merging the sections vertebral body, is screwed into four pieces of hold-down screws and fixes.
7) the back layer-by-layer suture that irrigates, operation finishes.
Claims (4)
1. adjustable cervical spine Invasive lumbar fusion device, it is characterized in that: it comprises agent structure and sliding latch device, described agent structure constitutes by separating the upper and lower main board (2,1) that is provided with and being coated on upper and lower main board polyester tension force ligament (5) all around, at the agent structure middle part appearance bone groove (6) is set, the dual-side middle part of described upper and lower main board is symmetrical arranged I shape and supports universal driving shaft (9), the upward axle and the lower shaft that support universal driving shaft are rotationally connected through liner (11) and upper and lower main board respectively, and described sliding latch device is positioned at an end of agent structure.
2. adjustable cervical spine Invasive lumbar fusion device according to claim 1, it is characterized in that: described sliding latch device is made up of upper and lower locking plate (3,4), upper and lower locking plate is affixed upper and lower main board respectively, the ratchet (3-2,4-2) of mutual coupling engagement is set respectively on the upper and lower locking plate contact surface, following locking plate is provided with lock groove (4-1), is provided with lock bolt (3-1) with the lock groove correspondence position on the last locking plate.
3. adjustable cervical spine Invasive lumbar fusion device according to claim 2 is characterized in that: the last main board upper surface of described agent structure, last main board lower surface are provided with anti-slop serrations (10).
4. according to claim 1 or 2 or 3 described adjustable cervical spine Invasive lumbar fusion devices, it is characterized in that: the end face that described agent structure is installed the sliding latch structure is provided with apparatus connecting hole (8).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201010519973A CN101972179B (en) | 2010-10-26 | 2010-10-26 | Adjustable cervical interbody fusion cage |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201010519973A CN101972179B (en) | 2010-10-26 | 2010-10-26 | Adjustable cervical interbody fusion cage |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN101972179A true CN101972179A (en) | 2011-02-16 |
| CN101972179B CN101972179B (en) | 2012-09-05 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201010519973A Expired - Fee Related CN101972179B (en) | 2010-10-26 | 2010-10-26 | Adjustable cervical interbody fusion cage |
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| CN (1) | CN101972179B (en) |
Cited By (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102599969A (en) * | 2012-04-16 | 2012-07-25 | 石门县人民医院 | Human single vertebral internal reduction fixing device |
| US9198765B1 (en) | 2011-10-31 | 2015-12-01 | Nuvasive, Inc. | Expandable spinal fusion implants and related methods |
| CN105266931A (en) * | 2015-12-02 | 2016-01-27 | 四川大学华西医院 | Adjustable interface type supporting and fixing fusion device achieving zero incisure of anterior thoracolumbar spine |
| CN105342729A (en) * | 2015-12-09 | 2016-02-24 | 北京市富乐科技开发有限公司 | Arc-shaped distraction fusion apparatus |
| US9445918B1 (en) | 2012-10-22 | 2016-09-20 | Nuvasive, Inc. | Expandable spinal fusion implants and related instruments and methods |
| CN110251221A (en) * | 2018-03-12 | 2019-09-20 | 捷迈拜欧米特脊柱有限公司 | Bar restorer ratchet lock mechanism |
| CN112842635A (en) * | 2019-11-28 | 2021-05-28 | 刘俭涛 | Slidable and self-locking atlantoaxial intervertebral fusion cage |
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| US6045579A (en) * | 1997-05-01 | 2000-04-04 | Spinal Concepts, Inc. | Adjustable height fusion device |
| US6368351B1 (en) * | 2001-03-27 | 2002-04-09 | Bradley J. Glenn | Intervertebral space implant for use in spinal fusion procedures |
| CN1372869A (en) * | 2002-04-09 | 2002-10-09 | 中国人民解放军第二军医大学 | Equipment for fusing steel sheet before neck |
| CN1976650A (en) * | 2004-04-22 | 2007-06-06 | 华沙整形外科股份有限公司 | Prosthetic intervertebral disc |
-
2010
- 2010-10-26 CN CN201010519973A patent/CN101972179B/en not_active Expired - Fee Related
Patent Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US6045579A (en) * | 1997-05-01 | 2000-04-04 | Spinal Concepts, Inc. | Adjustable height fusion device |
| US6368351B1 (en) * | 2001-03-27 | 2002-04-09 | Bradley J. Glenn | Intervertebral space implant for use in spinal fusion procedures |
| CN1372869A (en) * | 2002-04-09 | 2002-10-09 | 中国人民解放军第二军医大学 | Equipment for fusing steel sheet before neck |
| CN1976650A (en) * | 2004-04-22 | 2007-06-06 | 华沙整形外科股份有限公司 | Prosthetic intervertebral disc |
Cited By (13)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US9198765B1 (en) | 2011-10-31 | 2015-12-01 | Nuvasive, Inc. | Expandable spinal fusion implants and related methods |
| US9655744B1 (en) | 2011-10-31 | 2017-05-23 | Nuvasive, Inc. | Expandable spinal fusion implants and related methods |
| CN102599969A (en) * | 2012-04-16 | 2012-07-25 | 石门县人民医院 | Human single vertebral internal reduction fixing device |
| US11399954B2 (en) | 2012-10-22 | 2022-08-02 | Nuvasive, Inc. | Expandable spinal fusion implant, related instruments and methods |
| US9445918B1 (en) | 2012-10-22 | 2016-09-20 | Nuvasive, Inc. | Expandable spinal fusion implants and related instruments and methods |
| US10350084B1 (en) | 2012-10-22 | 2019-07-16 | Nuvasive, Inc. | Expandable spinal fusion implant, related instruments and methods |
| CN105266931A (en) * | 2015-12-02 | 2016-01-27 | 四川大学华西医院 | Adjustable interface type supporting and fixing fusion device achieving zero incisure of anterior thoracolumbar spine |
| CN105266931B (en) * | 2015-12-02 | 2017-04-19 | 四川大学华西医院 | Adjustable interface type supporting and fixing fusion device achieving zero incisure of anterior thoracolumbar spine |
| CN105342729A (en) * | 2015-12-09 | 2016-02-24 | 北京市富乐科技开发有限公司 | Arc-shaped distraction fusion apparatus |
| CN110251221A (en) * | 2018-03-12 | 2019-09-20 | 捷迈拜欧米特脊柱有限公司 | Bar restorer ratchet lock mechanism |
| US11730523B2 (en) | 2018-03-12 | 2023-08-22 | Zimmer Biomet Spine, Inc. | Rod reducer ratchet lock-out mechanism |
| CN112842635A (en) * | 2019-11-28 | 2021-05-28 | 刘俭涛 | Slidable and self-locking atlantoaxial intervertebral fusion cage |
| CN112842635B (en) * | 2019-11-28 | 2023-10-20 | 刘俭涛 | Slidable and self-locking atlantoaxial interbody fusion cage |
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| CN101972179B (en) | 2012-09-05 |
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Granted publication date: 20120905 Termination date: 20131026 |