CN105559949A - Self-stabilized interbody fusion cage - Google Patents
Self-stabilized interbody fusion cage Download PDFInfo
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- CN105559949A CN105559949A CN201510942257.3A CN201510942257A CN105559949A CN 105559949 A CN105559949 A CN 105559949A CN 201510942257 A CN201510942257 A CN 201510942257A CN 105559949 A CN105559949 A CN 105559949A
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- fusion device
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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
- A61F2/442—Intervertebral or spinal discs, e.g. resilient
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- Orthopedic Medicine & Surgery (AREA)
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- Oral & Maxillofacial Surgery (AREA)
- Transplantation (AREA)
- Heart & Thoracic Surgery (AREA)
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- Life Sciences & Earth Sciences (AREA)
- Animal Behavior & Ethology (AREA)
- General Health & Medical Sciences (AREA)
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- Veterinary Medicine (AREA)
- Surgical Instruments (AREA)
- Prostheses (AREA)
Abstract
The invention discloses a self-stabilized interbody fusion cage, and the self-stabilized interbody fusion cage comprises a thick-plate shaped fusion cage main body, wherein toothed bumps are arranged on the upper surface and the lower surface of the fusion cage main body; a fusion hole, which runs through the upper and lower surfaces of the fusion cage, is formed in the fusion cage main body, and observing windows, which communicate and are used for observing the growth situation of grafted bone, are formed at two sides of the fusion cage; developing points are arranged on two sides of the observing windows; ball screws, which are inserted into upper and lower vertebral bodies from front to back, are arranged on the fusion cage main body; and the ball screws are matched with an eccentric cam which is arranged on the axial direction of the fusion cage. The interbody fusion cage disclosed by the invention has the advantages that the ball screws and the fusion cage main body are in spherical contact and the ball screws can be freely regulated within a certain angle range in accordance with operation situations, so that an implant time is shortened and loosening is avoided, and the circumstance of too deep implantation due to an improper operation during operating is avoided; and by arranging non-return teeth on the upper and lower surfaces of the fusion cage body, the interbody fusion cage can facilitate implantation and have an non-return effect.
Description
Technical field
The present invention relates to technical field of medical instruments, especially relate to a kind of self-stabilising Invasive lumbar fusion device.
Background technology
Anterior cervical vertebrae intervertebral excision decompression and fusion is cervical vertebra surgery routine operation, and because its operation wound is little, safety is high, effective, has been the maturation operation for the treatment of cervical spondylosis.
One, the existing inter vertebral fusing device for this operation comprises fusion device and anterior plate fixation, fusion device profile is the thick plate-like identical with the anatomic form of intervertebral disc of cervical vertebra, be provided with through carried out bone-graft fusion chamber in the middle part of fusion device, fusion device upper surface and lower surface are provided with non-return tooth.Anterior plate fixation is provided with screw hole.During operation, fusion device is implanted intervertebral, anterior plate fixation is fixedly, on upper and lower two vertebral bodys that fusion device is adjacent, to be located by fusion device through screw.The anterior plate fixation of this inter vertebral fusing device is fixed on vertebral body front and esophagus rear, because the thickness of steel plate easily causes compressing in various degree and impact to esophagus, there is dysphagia in the postoperative patient had, especially multi-segmental fixed effect is more obvious, the lighter affects the orthobiosis of patient, and even therefore the concurrent esophagitis of severe one causes death.
Two, existing anterior cervical vertebrae zero incisura Invasive lumbar fusion device, is made up of fusion device main body, lock screw.Lock screw is screwed in the screw of fusion device main body and is connected and fixed with upper and lower two vertebral bodys after implanting intervertebral by fusion device main body.This structure instead of anterior plate fixation, but this zero incisura fusion device shortcoming is exactly very high to the skill set requirements of doctor, and the implantation of screw has certain angle, requires higher to screw placement.If angle has deviation just to there will be lock screw occur that illusion is locked in vertebral body locking, postoperatively can find fusion device slippage or disunion, thus cause second operation.
Summary of the invention
For overcoming above-mentioned technical problem, the technical solution used in the present invention is as follows:
A kind of self-stabilising Invasive lumbar fusion device, be provided with thick plate-like fusion device main body, described fusion device body upper surface and lower surface arrange dentation, fusion device main body is provided with the fusion hole of running through fusion device upper and lower surface and the both sides of fusion device are provided with the watch window for observing bone grafting growing state communicated, and watch window top is provided with development point; Fusion device main body is provided with the ball screw squeezing into hypocentrum from front to back, and the eccentric cam that ball screw and fusion device are axially arranged coordinates.
Described ball screw and coronalplane axis angulation A scope 0 – 10 °, with sagittal plane horizontal line angulation B scope 32 ° – 48 °.
Described fusion device main body top is provided with outstanding platform.
Described outstanding platform is limiting platform.
The quantity of described development point is three.
The invention has the beneficial effects as follows: anatomical form designs, rational biomechanics distribution, the prolapse recovering intervertebral space completely and height; The sphere-contact that ball screw adopts with fusion body, ball screw can be free to adjustment according to the situation of operation in certain angle periphery, shortens Implantation Time.After having implanted, rotating cam avoids getting loose of postoperative ball screw; Outstanding limiting platform plays position-limiting action when implanting, and avoids in operation process because misoperation causes implanting dark situation; Fusion body upper surface and lower surface are provided with non-return tooth, and convenient implantation has again the effect of retaining; Upper and lower surface hole defect at utmost provides contact surface and the bone grafting face of fusion; Sidewall hole can be imitated and be observed postoperative bone-graft fusion situation, and can increase the fusion that blood circulation is more conducive to postoperative upper and lower vertebral body; Fixed form can guarantee the Initial stability of implant, and guaranteeing after operation in patients can row functional exercise in early days etc.
Accompanying drawing explanation
Fig. 1 is structural representation of the present invention;
Fig. 2 is top view of the present invention;
Fig. 3 is front view of the present invention;
Fig. 4 is left view of the present invention.
Detailed description of the invention
As Figure 1-4, a kind of self-stabilising Invasive lumbar fusion device, be provided with thick plate-like fusion device main body, described fusion device main body is provided with upper surface dentation 2 and lower surface dentation 4, fusion device main body is provided with the fusion hole 8 of running through fusion device upper and lower surface and the both sides of fusion device are provided with the watch window 3 for observing bone grafting growing state communicated, and watch window 3 top is provided with development point 7; Fusion device main body is provided with the ball screw 5 squeezing into hypocentrum from front to back, and the eccentric cam 1 that ball screw 5 and fusion device are axially arranged coordinates.
Described ball screw 5 and coronalplane axis angulation A scope 0 – 10 °, with sagittal plane horizontal line angulation B scope 32 ° – 48 °.
Described fusion device main body top is provided with outstanding platform.
Described outstanding platform is positive stop lug boss 6.
The quantity of described development point 7 is three.
Operation principle:
Self-stabilising Invasive lumbar fusion device has fusion device main body, the ball screw 5 squeezing into hypocentrum is from front to back set in the front portion of fusion device main body, at fusion device upper surface, the upper surface dentation 2 increasing rubbing action and the lower surface dentation 4 increasing rubbing action at fusion device lower surface are set, being provided with the fusion hole 8 of through fusion device upper and lower surface, being provided with the watch window 3 for observing bone grafting growing state communicated in the both sides of fusion device.The universal Invasive lumbar fusion device of anterior cervical vertebrae zero incisura is provided with positive stop lug boss 6 and plays position-limiting action when implanting on fusion device main body top, and eccentric cam 1 is set on ball screw, eccentric cam 1 can rotate with pin riveted joint is fixing, with special equipment dextrorotation rotating cam rotate 30 °-150 ° be in Fig. 2 position time can play the effect preventing ball screw 5 from loosening, exiting, also different according to the locked position of the different cam of the implant angle of ball screw.Ball screw 5 has two, with coronalplane axis angulation A scope 0 – 10 °, with sagittal plane horizontal line angulation B scope 32 ° – 48 °, fusion device and spinal column is integrally fixed.And be used as location when being provided with 7 operation of development point.
The angulation stability of ball screw 5 and the three-dimensional integrated fixed form of screw-fusion device main body-vertebral body improve the postoperative Initial stability of implant, get final product out-of-bed activity after ensure that operation in patients, shorten and are in hospital and time of rehabilitation.
Fusion device main body carries out anatomical form design according to cervical vertebral body profile, and the design of front and back differing heights, different cross section can recover normal disc height according to the anatomical condition of different patient, keeps the normal prolapse of cervical vertebra; The fusion hole 8 of fusion device upper and lower surface at utmost provides contact surface and the bone grafting amount of fusion; Surface spinal adds the frictional force of main body and vertebral body upper and lower surface, improves the Initial stability that implant is postoperative; Proceeds posterolateral watch window 3 is conducive to following up a case by regular visits to distinguishing of middle fusion rate, adds the fusion that blood circulation is more conducive to postoperative upper and lower vertebral body simultaneously.
Claims (5)
1. a self-stabilising Invasive lumbar fusion device, be provided with thick plate-like fusion device main body, it is characterized in that: described fusion device body upper surface and lower surface arrange dentation, fusion device main body is provided with the fusion hole of running through fusion device upper and lower surface and the both sides of fusion device are provided with the watch window for observing bone grafting growing state communicated, and watch window top is provided with development point; Fusion device main body is provided with the ball screw squeezing into hypocentrum from front to back, and the eccentric cam that ball screw and fusion device are axially arranged coordinates.
2. a kind of self-stabilising Invasive lumbar fusion device according to claim 1, is characterized in that: described ball screw and coronalplane axis angulation A scope 0 – 10 °, with sagittal plane horizontal line angulation B scope 32 ° – 48 °.
3. a kind of self-stabilising Invasive lumbar fusion device according to claim 1, is characterized in that: described fusion device main body top is provided with outstanding platform.
4. a kind of self-stabilising Invasive lumbar fusion device according to claim 3, is characterized in that: described outstanding platform is limiting platform.
5. a kind of self-stabilising Invasive lumbar fusion device according to claim 1, is characterized in that: the quantity of described development point is three.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201510942257.3A CN105559949A (en) | 2015-12-16 | 2015-12-16 | Self-stabilized interbody fusion cage |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201510942257.3A CN105559949A (en) | 2015-12-16 | 2015-12-16 | Self-stabilized interbody fusion cage |
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| CN105559949A true CN105559949A (en) | 2016-05-11 |
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| CN201510942257.3A Pending CN105559949A (en) | 2015-12-16 | 2015-12-16 | Self-stabilized interbody fusion cage |
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Cited By (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106073951A (en) * | 2016-05-24 | 2016-11-09 | 北京市春立正达医疗器械股份有限公司 | A kind of 3D prints the low incisura fusion device of metal bone trabecula cervical vertebra |
| CN106236331A (en) * | 2016-08-31 | 2016-12-21 | 蒋毅 | A kind of Invasive lumbar fusion device |
| CN106388981A (en) * | 2016-10-24 | 2017-02-15 | 闻泰医疗科技（上海）有限公司 | Lumbar interbody fusion cage |
| CN109646153A (en) * | 2019-02-28 | 2019-04-19 | 赵刘军 | Novel interbody cage systems based on lower cervical anterior pedicle of vertebral arch basal part screw |
| CN110314020A (en) * | 2019-07-27 | 2019-10-11 | 高延征 | A kind of zero incisura cervical fusion cage of self-tapping type |
| CN116919679A (en) * | 2023-09-18 | 2023-10-24 | 吉林大学 | Personalized customization cervical vertebra zero-notch interbody fusion cage and manufacturing method |
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| US20120239153A1 (en) * | 2005-05-06 | 2012-09-20 | Titan Spine, Llc. | Endplate-preserving spinal implant having a raised expulsion-resistant edge |
| CN103610522A (en) * | 2013-12-12 | 2014-03-05 | 广州聚生生物科技有限公司 | Lumbar vertebra posterior approach fusion device |
| CN103622767A (en) * | 2013-12-11 | 2014-03-12 | 广州聚生生物科技有限公司 | Lumbar fusion cage for intervertebral foramen approach |
| CN203506856U (en) * | 2013-10-14 | 2014-04-02 | 中国人民解放军总医院第一附属医院 | Lumbar vertebra posterior dynamic internal fixing system |
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| CN104814816A (en) * | 2015-05-20 | 2015-08-05 | 上海长征医院 | Self-stabilization type extreme lateral approach intervertebral fusion cage |
| CN205339220U (en) * | 2015-12-16 | 2016-06-29 | 贝尔泰克医疗器械江苏有限公司 | Self stabilization type interbody fusion cage |
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2015
- 2015-12-16 CN CN201510942257.3A patent/CN105559949A/en active Pending
Patent Citations (10)
| Publication number | Priority date | Publication date | Assignee | Title |
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| US20120239153A1 (en) * | 2005-05-06 | 2012-09-20 | Titan Spine, Llc. | Endplate-preserving spinal implant having a raised expulsion-resistant edge |
| CN201244104Y (en) * | 2008-06-27 | 2009-05-27 | 常州奥斯迈医疗器械有限公司 | Intervertebral fusion device for locking anterior lumbar interbody |
| US20140277485A1 (en) * | 2013-03-14 | 2014-09-18 | Ranier Limited | Intervertebral fusion implant cage |
| CN203506856U (en) * | 2013-10-14 | 2014-04-02 | 中国人民解放军总医院第一附属医院 | Lumbar vertebra posterior dynamic internal fixing system |
| CN103622767A (en) * | 2013-12-11 | 2014-03-12 | 广州聚生生物科技有限公司 | Lumbar fusion cage for intervertebral foramen approach |
| CN103610522A (en) * | 2013-12-12 | 2014-03-05 | 广州聚生生物科技有限公司 | Lumbar vertebra posterior approach fusion device |
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| CN104814816A (en) * | 2015-05-20 | 2015-08-05 | 上海长征医院 | Self-stabilization type extreme lateral approach intervertebral fusion cage |
| CN205339220U (en) * | 2015-12-16 | 2016-06-29 | 贝尔泰克医疗器械江苏有限公司 | Self stabilization type interbody fusion cage |
Cited By (8)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106073951A (en) * | 2016-05-24 | 2016-11-09 | 北京市春立正达医疗器械股份有限公司 | A kind of 3D prints the low incisura fusion device of metal bone trabecula cervical vertebra |
| CN106236331A (en) * | 2016-08-31 | 2016-12-21 | 蒋毅 | A kind of Invasive lumbar fusion device |
| CN106236331B (en) * | 2016-08-31 | 2018-04-13 | 蒋毅 | A kind of Invasive lumbar fusion device |
| CN106388981A (en) * | 2016-10-24 | 2017-02-15 | 闻泰医疗科技（上海）有限公司 | Lumbar interbody fusion cage |
| CN106388981B (en) * | 2016-10-24 | 2018-10-02 | 闻泰医疗科技（上海）有限公司 | A kind of lumbar intervertebral fusion device |
| CN109646153A (en) * | 2019-02-28 | 2019-04-19 | 赵刘军 | Novel interbody cage systems based on lower cervical anterior pedicle of vertebral arch basal part screw |
| CN110314020A (en) * | 2019-07-27 | 2019-10-11 | 高延征 | A kind of zero incisura cervical fusion cage of self-tapping type |
| CN116919679A (en) * | 2023-09-18 | 2023-10-24 | 吉林大学 | Personalized customization cervical vertebra zero-notch interbody fusion cage and manufacturing method |
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Application publication date: 20160511 |
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