CN106618808A - Semi-incisura lumbar interbody fusion fixator - Google Patents
Semi-incisura lumbar interbody fusion fixator Download PDFInfo
- Publication number
- CN106618808A CN106618808A CN201611083205.6A CN201611083205A CN106618808A CN 106618808 A CN106618808 A CN 106618808A CN 201611083205 A CN201611083205 A CN 201611083205A CN 106618808 A CN106618808 A CN 106618808A
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- steel plate
- incisura
- fusion
- intervertebral
- confluence
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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
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- 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)
- Surgical Instruments (AREA)
Abstract
The invention relates to a semi-incisura lumbar interbody fusion fixator. The semi-incisura lumbar interbody fusion fixator comprises a fusion cage body, a steel plate and a connecting mechanism, wherein the fusion cage body is connected with the steel plate through the connecting mechanism; one end of the connecting mechanism is fixedly connected with the steel plate; the other end of the connecting mechanism is a spherical tail end; a groove which is matched with the spherical tail end is formed in a fixed end of the fusion cage body; the spherical tail end is movably arranged in the groove; and the diameter of an opening, which faces one side of the steel plate, of the groove is smaller than that of the spherical tail end. By the micro-motion design of the steel plate and the fusion cage body and the micro-motion design of the steel plate and a convex lug, stress concentration and stress shielding are avoided, risks of screw extraction and bone graft non-fusion are reduced, and the fusion rate and the instrument safety are improved.
Description
Technical field
The present invention relates to medical science fusion device technical field, more particularly to half incisura intervertebral confluence fixator.
Background technology
The anterior approach of neck 2/3 is blocked because of mandibular, and difficult exposure, operating space is little, and operating difficulty is big, because angle
Problem to plant nail using zero incisura Invasive lumbar fusion device extremely difficult, and it is also big to adopt Interal fixation to plant nail difficulty, and because neck 2/3
Centrum front esophagus and pharynx rear wall tension force are high, stimulate big to esophagus, and postoperative dysphagia incidence substantially increases, postoperative to rub for a long time
Compressing is wiped, esophageal perforation risk is also high；In the same manner, neck regio pectoris operation there is also a similar difficult problem.
Fusion device disclosed in patent document CN 104546095A, can solve the problems, such as to plant nail difficulty, but after it is adjusted
Fusion device body is to be fixedly connected with steel plate, the screw easy fracture in active procedure.
The content of the invention
The present invention is intended to provide half incisura intervertebral confluence fixator, not only can prevent fusion device body from shifting, moreover it is possible to keep away
Exempting from stress concentration causes screw extraction.
To reach above-mentioned purpose, the technical solution used in the present invention is as follows：
Half incisura intervertebral confluence fixator, including fusion device body, steel plate and bindiny mechanism, the fusion device body passes through
Bindiny mechanism is connected with steel plate, and described bindiny mechanism one end is affixed with steel plate, and the other end of bindiny mechanism is ball-type end, described
The fixing end of fusion device body has the groove being adapted to bulb, and the ball-type end activity is filled in a groove, the groove
The diameter of ball-type end is less than towards the opening diameter of steel plate side.
Further, the steel plate is provided with lug, there is the first screw hole on the lug, there is the second spiral shell on the steel plate
Nail, the bindiny mechanism is located between the first screw hole and the second screw hole.
Further, there is the fusion hole of up/down perforation on the fusion device body, the groove is connected with fusion hole, described
Groove is more than the diameter of ball-type end towards the opening diameter of fusion hole side.
Further, first screw hole is upright opening, and second screw hole is angling hole.
Further, first screw hole and the second screw hole respectively have two, and the lug is located at two the second screws
Between hole.
Further, the bindiny mechanism has 2, and 2 bindiny mechanisms are located between two the second screw holes.
Further, the lug swings with steel plate and is connected.
Further, the pendulum angle of the lug is -5 °～5 °.
Further, the material of the fusion device body is peek.
Further, there is anti-skid bulge the top surface of the fusion device body and bottom surface.
Compared with prior art, the invention has the advantages that：
1. still fusion device body can not only can be prevented with gentle activity after fusion device body of the present invention is connected with steel plate
Displacement, moreover it is possible to avoid stress concentration from causing screw extraction.
2. neck 2/3 and the operation of neck chest junctional area because difficult exposure (mandibular, clavicle, breastbone are blocked), operating space
Little, either all there is plant nail difficulty in conventional steel plates or zero incisura intervertebral confluence fixator, and conventional steel plates are raised in centrum table
Surface damage stimulates the risk of esophagus, dysphagia and esophageal perforation higher, and the half incisura design of the invention had both facilitated spiral shell
Nail implantation reduces the risk that esophageal injury stimulates and bores a hole again；
3. lug facilitates screw placement, it is to avoid mandibular and breastbone are blocked, oblique screw outside, slightly towards side
Incline, increased hold and stability；Operating difficulty and exposure difficulty are reduced, drawing of the operation to soft tissue is reduced,
Operation wound is reduced, the learning curve of doctor is reduced and is shortened operating time；
4. steel plate of the present invention is designed with the fine motion of fusion device body, and coordinating the design of the fine motion between steel plate and lug to avoid should
Power collection neutralizes stress shielding, reduces screw extraction and bone grafting does not merge risk, improves fusion rate and apparatus security.
Description of the drawings
Fig. 1 is the structural representation of the present invention；
Fig. 2 is the structural representation of light plate of the present invention；
Fig. 3 is the sectional side view of light plate of the present invention；
Fig. 4 is the structural representation of fusion device body in the present invention；
Fig. 5 is the sectional view (not shown screw) of the present invention；
Fig. 6 is the structural representation of lug and steel plate junction in the present invention；
In figure：1- fusion device bodies, 2- steel plates, 3- lugs, the screws of 4- second, the screws of 5- first, 6- bindiny mechanisms, 7- prevent
Sliding raised, 8- fusions hole, 9- rotating shafts, 10- angles of oscillation, the screw holes of 41- first, the screw holes of 51- second, 61- mounting grooves, 62- are recessed
Groove.
Specific embodiment
In order that the objects, technical solutions and advantages of the present invention become more apparent, below in conjunction with accompanying drawing, the present invention is entered
Row is further described.
As shown in Fig. 1～5, half incisura intervertebral confluence fixator disclosed by the invention, including fusion device body 1, the and of steel plate 2
Bindiny mechanism 6, fusion device body 1 is connected by bindiny mechanism 6 with steel plate 2, and the one end of bindiny mechanism 6 is affixed with steel plate 2, connects machine
The other end of structure 6 is ball-type end, and the fixing end of fusion device body 1 has the groove 62 being adapted to bulb, and ball-type end is lived
Dynamic to be mounted in groove 62, groove 62 is less than the diameter of ball-type end towards the opening diameter of the side of steel plate 2, and the bottom surface of groove 62 is ball
Shape face.After fusion device body 1 is arranged on steel plate, fusion device body 1 still be able to can not be departed from again with gentle activity, prevent fusion
Device is shifted and stress concentration easily allows screw loosening.Preferably, the corresponding positions of the Shang You bindiny mechanisms 6 of steel plate 2 are equipped with and are connected
The mounting groove 61 of the adaptation of mechanism 6, bindiny mechanism 6 is affixed with the inwall of mounting groove 61.
Steel plate 2 is provided with lug 3, and steel plate 2 and lug 3 are provided with screw hole, and the quantity of screw hole is arranged as required to.It is convex
There is the first screw hole 41 on ear 3, there is the second screw hole 51 on steel plate 2, bindiny mechanism 6 is located at the first screw hole 41 and the second screw
Between hole 51.Preferably, lug 3 is thinner than steel plate 2, when neck 2/3 is performed the operation, lug 3 is covered on the centrum of neck 3, above may be used
With 2 pieces of means of vertical screws of implantation on the centrum of neck 3；When neck chest junctional area, lug 3 is covered on the centrum of head end, is planted
Enter screw convenient.Further, the first screw hole 41 is upright opening, and the second screw hole 51 is angling hole, the second screw hole 51 to
The front and side of outer incline, the front and back of the insertion steel plate 2 of the second screw hole 51, or the insertion steel plate 2 of the second screw hole 51,
Or second screw hole 51 front of insertion steel plate 2, side and the back side simultaneously.Further, second is equipped with the first screw hole 41
Screw 4, is equipped with the first screw 5 in the second screw hole 51.
Further, the first screw hole 41 and the second screw hole 51 respectively have two, and lug 3 is located at two the second screw holes 51
Between.Further, bindiny mechanism 6 has 2, and 2 bindiny mechanisms 6 are located between two the second screw holes 51.Preferably, convex
Ear 3 is swung with steel plate 2 as the center of circle with rotating shaft 9 and is connected.Rotating shaft 9 is vertical with the protrusion direction of lug 3, further, the pendulum of lug 3
Dynamic angle is -5 °～5 °.As shown in fig. 6, being provided with angle of oscillation 10 on steel plate 2, lug 3 can swing in angle of oscillation 10.Pendulum
Dynamic angle 10 is 0 °～5 °.Lug is connected with steel plate rotation-limited, is suitable for the backbone of differently curved degree, it is ensured that outside lug and centrum
The laminating degree of edge.
There is the fusion hole 8 of up/down perforation on fusion device body 1, groove 62 is connected with fusion hole 8, and groove 62 is towards fusion hole
Diameter of the opening diameter of 8 sides more than ball-type end.Preferably, the material of fusion device body 1 is peek.Fusion device is
Peek materials, elastic modelling quantity and bone photo are near, reduce prosthese sinking risk；The material of steel plate 2 and lug 3 is titanium alloy.Fusion
Can be with implantable artificial bone or autologous bone, while also allowing for installing bindiny mechanism 6 in hole 8.The top surface of fusion device body 1 and bottom surface
There is anti-skid bulge 7, preferably, anti-skid bulge 7 is four icicle structures, convex anti-skid bulge 7 is in the surface shape of fusion device body 1
Into uneven face, the contact friction force with terminal plate of vertebral body can be increased, prevent displacement.
Steel plate front flushes with anterior margin of vertebral body, does not project conical surface, reduces the stimulation to esophagus, it is possible to reduce postoperative
Dysphagia；The compressing to esophagus can be reduced, prevention is worn out esophagus and causes esophageal perforation, esophageal perforation be it is fatal, can be with
Cause death.Steel plate has 2 oblique screws, and when neck 2/3 is performed the operation, this 2 oblique screws are the implantation vertebras of neck 2
In vivo, blocking for mandibular, oblique implantation can be so avoided to reduce exposed difficulty and requirement.Neck chest junctional area when
Wait, oblique screw is implantation away from the centrum of head end, it is to avoid breastbone is blocked.
Steel plate of the present invention is designed with the fine motion of fusion device body, coordinates the design of the fine motion between steel plate and lug to avoid stress
Collection neutralization stress shielding, reduces screw extraction and bone grafting does not merge risk, improves fusion rate and apparatus security；In addition steel
Activities Design between plate and lug adapts to the backbone of differently curved degree, it is ensured that lug and the laminating degree of centrum outer rim, improves
Operative effect, reduces operating difficulty and shortens operating time, reduces Post operation esophagus complication.Present invention is particularly suitable for neck
2/3 and neck chest junctional area operation.
Certainly, the present invention can also have other numerous embodiments, in the case of without departing substantially from spirit of the invention and its essence,
Those of ordinary skill in the art can make various corresponding changes and deformation, but these corresponding changes and change according to the present invention
Shape should all belong to the protection domain of appended claims of the invention.
Claims (10)
1. half incisura intervertebral confluence fixator, it is characterised in that:Including fusion device body (1), steel plate (2) and bindiny mechanism (6),
The fusion device body (1) is connected by bindiny mechanism (6) with steel plate (2), and described bindiny mechanism (6) one end is solid with steel plate (2)
Connect, the other end of bindiny mechanism (6) is ball-type end, and the fixing end of the fusion device body (1) has what is be adapted to bulb
Groove (62), ball-type end activity is mounted in groove (62), opening diameter of the groove (62) towards steel plate (2) side
Less than the diameter of ball-type end.
2. half incisura intervertebral confluence fixator according to claim 1, it is characterised in that：The steel plate (2) is provided with convex
Ear (3), there is the first screw hole (41) on the lug (3), there is the second screw hole (51), the connection machine on the steel plate (2)
Structure (6) is between the first screw hole (41) and the second screw hole (51).
3. half incisura intervertebral confluence fixator according to claim 1, it is characterised in that：On the fusion device body (1)
There is the fusion hole (8) of up/down perforation, the groove (62) connects with fusion hole (8), the groove (62) is towards fusion hole (8)
Diameter of the opening diameter of side more than ball-type end.
4. half incisura intervertebral confluence fixator according to claim 2, it is characterised in that：First screw hole (41) is
Upright opening, second screw hole (51) is angling hole.
5. the half incisura intervertebral confluence fixator according to claim 2 or 4, it is characterised in that：First screw hole
(41) respectively there are two with the second screw hole (51), the lug (3) is between two the second screw holes (51).
6. half incisura intervertebral confluence fixator according to claim 5, it is characterised in that：The bindiny mechanism (6) has 2
Individual, 2 bindiny mechanisms (6) are between two the second screw holes (51).
7. half incisura intervertebral confluence fixator according to claim 2, it is characterised in that：The lug (3) and steel plate (2)
Swing connection.
8. half incisura intervertebral confluence fixator according to claim 7, it is characterised in that：The angle of oscillation of the lug (3)
Spend for -5 °～5 °.
9. half incisura intervertebral confluence fixator according to claim 1, it is characterised in that：The fusion device body (1)
Material is peek.
10. half incisura intervertebral confluence fixator according to claim 1, it is characterised in that：The fusion device body (1)
There is anti-skid bulge (7) top surface and bottom surface.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201611083205.6A CN106618808B (en) | 2016-11-30 | 2016-11-30 | Half incisura intervertebral confluence fixator |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201611083205.6A CN106618808B (en) | 2016-11-30 | 2016-11-30 | Half incisura intervertebral confluence fixator |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN106618808A true CN106618808A (en) | 2017-05-10 |
| CN106618808B CN106618808B (en) | 2018-06-26 |
Family
ID=58813619
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201611083205.6A Active CN106618808B (en) | 2016-11-30 | 2016-11-30 | Half incisura intervertebral confluence fixator |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN106618808B (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106963523A (en) * | 2017-04-28 | 2017-07-21 | 北京爱康宜诚医疗器材有限公司 | Centrum prosthese |
| CN111938882A (en) * | 2020-08-24 | 2020-11-17 | 四川大学华西医院 | Posterior atlantoaxial lateral mass joint fusion fixator component |
Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US20070049941A1 (en) * | 2005-08-25 | 2007-03-01 | Lanx, Llc | Plate with stabilization |
| US20080300634A1 (en) * | 2007-05-31 | 2008-12-04 | Wayne Gray | Spinal interbody system and method |
| CN104546231A (en) * | 2015-01-27 | 2015-04-29 | 范伟力 | Adaptive floating combined cervical interbody fusion cage |
| CN104546095A (en) * | 2015-01-27 | 2015-04-29 | 范伟力 | Adaptive floating combined cervical interbody fusion cage |
| US20160128845A1 (en) * | 2006-02-27 | 2016-05-12 | DePuy Synthes Products, Inc. | Intervertebral Implant with Fixation Geometry |
-
2016
- 2016-11-30 CN CN201611083205.6A patent/CN106618808B/en active Active
Patent Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US20070049941A1 (en) * | 2005-08-25 | 2007-03-01 | Lanx, Llc | Plate with stabilization |
| US20160128845A1 (en) * | 2006-02-27 | 2016-05-12 | DePuy Synthes Products, Inc. | Intervertebral Implant with Fixation Geometry |
| US20080300634A1 (en) * | 2007-05-31 | 2008-12-04 | Wayne Gray | Spinal interbody system and method |
| CN104546231A (en) * | 2015-01-27 | 2015-04-29 | 范伟力 | Adaptive floating combined cervical interbody fusion cage |
| CN104546095A (en) * | 2015-01-27 | 2015-04-29 | 范伟力 | Adaptive floating combined cervical interbody fusion cage |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106963523A (en) * | 2017-04-28 | 2017-07-21 | 北京爱康宜诚医疗器材有限公司 | Centrum prosthese |
| CN106963523B (en) * | 2017-04-28 | 2018-11-09 | 北京爱康宜诚医疗器材有限公司 | Centrum prosthese |
| CN111938882A (en) * | 2020-08-24 | 2020-11-17 | 四川大学华西医院 | Posterior atlantoaxial lateral mass joint fusion fixator component |
Also Published As
| Publication number | Publication date |
|---|---|
| CN106618808B (en) | 2018-06-26 |
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