CN101015477B - Minimally Invasive lumbar fusion device - Google Patents
Minimally Invasive lumbar fusion device Download PDFInfo
- Publication number
- CN101015477B CN101015477B CN200710026973A CN200710026973A CN101015477B CN 101015477 B CN101015477 B CN 101015477B CN 200710026973 A CN200710026973 A CN 200710026973A CN 200710026973 A CN200710026973 A CN 200710026973A CN 101015477 B CN101015477 B CN 101015477B
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- China
- Prior art keywords
- fusion device
- invasive lumbar
- minimally invasive
- lumbar fusion
- inserting surface
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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
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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
- A61F2002/30001—Additional features of subject-matter classified in A61F2/28, A61F2/30 and subgroups thereof
Abstract
The invention discloses a micro-injury intervertebral fusing tool and using method, which is characterized by the following: the surface between fusing tool head and rear possesses two end-plate contact faces, internal plug face and external plug face; the head of fusing tool is outward arc to minimize from back to front, which transmits between internal and external plug sides. The using method comprises the following steps: (a) plugging internal and external plug sides into intervertebral along level direction; (b) rotating fusing tool by 90 deg along axle to erect the fusing tool; contacting end-plate contact surface and vertebra end-plate tightly; realizing micro-injury operation effectively.
Description
Technical field
The present invention relates to a kind of medical equipment, relate in particular to a kind of minimally Invasive lumbar fusion device.
Background technology
Unstable spine disease is common vertebra degeneration illness, also is one of common cause that causes lumbago and skelalgia.For unstable spine, Therapeutic Method commonly used is to implement the intervertebral fusion operation.Promptly finish vertebral plate decompression earlier, intervertebral disc marrow nuclear excising and handle soleplate after, select the Invasive lumbar fusion device of suitable size according to the disc height of measuring on the X sheet before the art and measurement result, it is implanted in intervertebral space.When using Invasive lumbar fusion device to implement the intervertebral fusion operation, Invasive lumbar fusion device is mainly born two kinds of functions: the one, and the rigid structural support intervertebral space is kept intervertebral space physiology height; The 2nd, in the space of Invasive lumbar fusion device, put into bioactive substance, the performance bone is induced and bone conduction effect, promotes growing into of area of new bone, finishes the real fusion of adjacent vertebral bodies.And existing Invasive lumbar fusion device mainly contains following defective:
1, on the one hand, for the intensity that guarantees Invasive lumbar fusion device and with fully the contacting of soleplate, wish that fusion device has relatively large size, on the other hand, when intervertebral space narrows down owing to intervertebral disc degeneration, Invasive lumbar fusion device inserts difficulty of intervertebral space, after usually needing to contact dilator intervertebral space being strutted, the soleplate contact surface of Invasive lumbar fusion device is inserted, when implanting large-sized Invasive lumbar fusion device along the vertebral direction, need open the imperial palace window, cause damage probably, can not realize Minimally Invasive Surgery nerve, and the structure of existing Invasive lumbar fusion device and inserted mode thereof, need configuration by specific purpose tools such as dilators, complicated operation.
2, in order to improve the syncretizing effect of Invasive lumbar fusion device as much as possible, offer the deposit storehouse in the inside of intervertebral fusion, before implantation, earlier bioactive substances such as skeletal grain are inserted in the Invasive lumbar fusion device, again Invasive lumbar fusion device is pushed intervertebral space, by in Invasive lumbar fusion device, offering the deposit storehouse, promote the healing of intervertebral space bone grafting; Because between Invasive lumbar fusion device and the soleplate is to contact by the soleplate contact surface, for with bone to this contact surface channeling conduct, so be provided with big through hole at the soleplate contact surface, but this can reduce the contact area of fusion device soleplate contact surface and soleplate undoubtedly, in order to guarantee fully to contact fusion between fusion device and the soleplate, adopt large-sized Invasive lumbar fusion device to improve the contact area of itself and soleplate, reduce stress, the shortcoming that this structure is brought is: the size of Invasive lumbar fusion device strengthens, when operation is implanted, often need the partly or entirely little joint of excision, to open the DAGU window, can not realize the invasive operation, when operation, be easy to nerve is caused damage;
3, some fusion devices adopt solid construction in order to reduce volume, the width of its cross section is generally 8 to 9 millimeters, on this fusion device main body, do not establish perforate, the surface of fusion device is through titanium silk deposition processes, after the operation, the bone growth promoting of growing in the micropore on the surface of fusion device main body, and promote fusion between fusion device and the soleplate interface; Because this fusion device is a solid construction, area is little, can realize Minimally Invasive Surgery by the implantation of windowing when operation; But the stability at a specified future date of this Invasive lumbar fusion device only depends on the bone fusion on surface, the loosening of similar type femoral bone end prosthesis and displacement phenomenon may take place, and do not have the induced osteogenesis ability, causes the poor stability at a specified future date of Invasive lumbar fusion device.
4, when two pieces of fusion devices are implanted simultaneously, the mating reaction of not bringing into play between two pieces of fusion devices, its bone induces effect not satisfactory.
Summary of the invention
The object of the present invention is to provide a kind of novel minimally Invasive lumbar fusion device, this Invasive lumbar fusion device has intervertebral space and struts function by special shape-designing, the convenient insertion.
The present invention is achieved through the following technical solutions:
Minimally Invasive lumbar fusion device, surface between fusion device head and the fusion device afterbody is two soleplate contact surfaces that are oppositely arranged and inboard inserting surface, the outside inserting surface that is oppositely arranged, the fusion device head is the arc of evagination, and by after dwindle equal rounding off between fusion device head and described inboard inserting surface, the outside inserting surface forward gradually.
The minimally Invasive lumbar fusion device using method, this method may further comprise the steps at least: (a) inboard inserting surface, the outside inserting surface with Invasive lumbar fusion device inserts intervertebral space along the vertebral parallel direction; (b) Invasive lumbar fusion device is revolved along its axis turn 90 degrees, Invasive lumbar fusion device is erected, its soleplate contact surface closely contacts with vertebral.
Adopt structure of the present invention, in the Invasive lumbar fusion device insertion process, do not need, insert more conveniently, reduce injury simultaneously, realize that Wicresoft inserts human body by dilator.
The further improvement of minimally Invasive lumbar fusion device of the present invention is:
Described fusion device head forms bullet shaped; The stage casing of described inboard inserting surface is recessed with respect to described fusion device head, fusion device two sides of tail formation arc.
Distance between described inboard inserting surface, the outside inserting surface is less than the distance between two described soleplate contact surfaces.When concrete the manufacturing, distance between inboard inserting surface, the outside inserting surface is general to adopt 7 to 8 millimeters, distance between two described soleplate contact surfaces is generally system dimension such as 8 millimeters, 10 millimeters or 12 millimeters, distance between comparable two the soleplate contact surfaces of opening when Invasive lumbar fusion device inserts goes out many for a short time, realize Minimally Invasive Surgery, to reduce damage to human body.
Be provided with opening on inboard inserting surface, this opening leads directly to fusion device inside and forms accommodation space in fusion device inside.After two pieces of minimally Invasive lumbar fusion devices implantation, in the accommodation space of these two pieces of minimally Invasive lumbar fusion devices, put into skeletal grain, induce the growth of bone growth promoting; The inboard inserting surface of two pieces of minimally Invasive lumbar fusion devices is relative, can also insert skeletal grain in the dummy section enclosing of these two pieces of minimally Invasive lumbar fusion devices, better brings into play bone inductive effect, improves bone and induces area.
The upper end of described opening is near described fusion device head, the approaching described fusion device afterbody in lower end.Big open design near described fusion device head, fusion device afterbody, is adopted respectively in the two ends of opening, makes two pieces of bones between the minimally Invasive lumbar fusion device induce better effects if.
Be provided with port on the inserting surface of the described outside, this port communicates with described accommodation space.Skeletal grain in the accommodation space also can be induced bone growth promoting inserting surface direction growth laterally by this port, improves bone and induces effect.More excellent design is: described port is at least two, vertically is provided with along described fusion device head, fusion device caudal directions.
In like manner, be provided with through hole on described soleplate contact surface, this through hole communicates with described accommodation space.More excellent design is: described through hole is at least two, vertically is provided with along described fusion device head, fusion device caudal directions.
In sum, advantage of the present invention is:
1, the inserting surface of Invasive lumbar fusion device is inserted intervertebral space along the vertebral parallel direction and revolve again and turn 90 degrees, the soleplate contact surface is closely contacted with vertebral, the efficient recovery disc height is arranged and reduce damage, realize Wicresoft's implantation human body;
2, inboard big open design, after two pieces of minimally Invasive lumbar fusion devices are implanted, between enclose in the dummy section and can insert skeletal grain, better bring into play bone inductive effect;
3, outside inserting surface is provided with port, the soleplate contact surface is provided with through hole, strengthens bone inductive effect;
4, the fusion device head is bullet-headed, when implanting, can reduce the bone window, realizes Minimally Invasive Surgery;
5, volume miniaturization is fit to Wicresoft and implants;
6, the soleplate contact area is big, and by special moulding and via design, reduces stress concentration, avoids the sufferers of osteoporosis face soleplate to subside.
Description of drawings
Fig. 1 is the place ahead axonometric chart of minimally Invasive lumbar fusion device of the present invention;
Fig. 2 is the rear perspective view of minimally Invasive lumbar fusion device of the present invention;
Fig. 3 is the side view of minimally Invasive lumbar fusion device of the present invention;
Fig. 4 is the front view of minimally Invasive lumbar fusion device of the present invention;
Fig. 5 is the rearview of minimally Invasive lumbar fusion device of the present invention;
Fig. 6 is the upward view of minimally Invasive lumbar fusion device of the present invention;
Fig. 7 is the design sketch after minimally Invasive lumbar fusion device of the present invention is implanted;
Fig. 8 is a minimally Invasive lumbar fusion device of the present invention used tool when inserting;
Fig. 9 is that minimally Invasive lumbar fusion device of the present invention is connected the state diagram on the instrument;
Figure 10 is that minimally Invasive lumbar fusion device of the present invention inserts sketch map when using;
Figure 11 is a minimally Invasive lumbar fusion device of the present invention rotation sketch map when using;
Description of reference numerals:
1, fusion device head, 2, the fusion device afterbody, 3, inboard inserting surface, 4, outside inserting surface, 5, the soleplate contact surface, 6, opening, 7, port, 8, through hole.
The specific embodiment
See also Fig. 1 to Fig. 7, minimally Invasive lumbar fusion device, surface between fusion device head 1 and the fusion device afterbody 2 is two soleplate contact surfaces 5 that are oppositely arranged and inboard inserting surface 3, the outside inserting surface 4 that is oppositely arranged, be provided with opening 6 on inboard inserting surface 3, this opening 6 straight-through fusion devices are inner and at the inner accommodation space that forms of fusion device; The upper end of opening 6 near fusion device head 1, lower end near fusion device afterbody 2.Be provided with two ports 7 on outside inserting surface 4, these two ports 7 vertically are provided with and communicate with accommodation space along fusion device head 1, fusion device afterbody 2 directions; Fusion device head 1 is the arc of evagination, and by after dwindle gradually forward; Fusion device head 1 forms bullet shaped; Equal rounding off between fusion device head 1 and inboard inserting surface 3, the outside inserting surface 4; The stage casing of inboard inserting surface 3 is recessed with respect to fusion device head 1, fusion device afterbody 2 both sides formation arc.Be provided with two through holes 8 on soleplate contact surface 5, these two through holes 8 vertically are provided with and communicate with accommodation space along fusion device head 1, fusion device afterbody 2 directions.
The minimally Invasive lumbar fusion device using method, this method may further comprise the steps at least: (a) inboard inserting surface 3, the outside inserting surface 4 with Invasive lumbar fusion device inserts intervertebral space along the vertebral parallel direction; (b) Invasive lumbar fusion device is revolved along its axis turn 90 degrees, Invasive lumbar fusion device is erected, its soleplate contact surface 5 closely contacts with vertebral.
During operation, in the accommodation space of minimally Invasive lumbar fusion device, put into skeletal grain, the fusion device head 1 of this bullet shaped is inserted the bone window, the curve design of rounding off minimally Invasive lumbar fusion device is easily inserted from the bone window, after the insertion, minimally Invasive lumbar fusion device remakes 90 degree upsets, and minimally Invasive lumbar fusion device soleplate contact surface 5 is contacted with soleplate, and the inboard inserting surface 3 of two pieces of minimally Invasive lumbar fusion devices is relative, also puts into skeletal grain in the dummy section enclosing of two pieces of minimally Invasive lumbar fusion devices.Major advantage of the present invention is: the fusion device head 1 of bullet shaped conveniently is inserted into the bone window and does 90 degree upsets and locate, and can realize Minimally Invasive Surgery; Inboard inserting surface 3 is provided with big opening, and when two pieces of minimally Invasive lumbar fusion devices were relative, the dummy section that encloses was therebetween put into skeletal grain, and bone is induced better effects if.
Claims (8)
1. minimally Invasive lumbar fusion device, surface between fusion device head (1) and the fusion device afterbody (2) is two the soleplate contact surfaces (5) that are oppositely arranged and the inboard inserting surface (3) that is oppositely arranged, outside inserting surface (4), it is characterized in that, fusion device head (1) is the arc of evagination, and by after dwindle gradually forward, equal rounding off between fusion device head (1) and described inboard inserting surface (3), the outside inserting surface (4), the distance between described inboard inserting surface (3), the outside inserting surface (4) is less than the distance between two described soleplate contact surfaces (5).
2. minimally Invasive lumbar fusion device according to claim 1 is characterized in that, described fusion device head (1) forms bullet shaped.
3. Invasive lumbar fusion device according to claim 1 is characterized in that, the stage casing of described inboard inserting surface (3) with respect to described fusion device head (1), that fusion device afterbody (2) both sides form arc is recessed.
4. as minimally Invasive lumbar fusion device as described in the claim 1,2 or 3, it is characterized in that, be provided with opening (6) on inboard inserting surface (3), the straight-through fusion device of this opening (6) is inner and at the inner accommodation space that forms of fusion device.
5. as minimally Invasive lumbar fusion device as described in the claim 4, it is characterized in that, the upper end of described opening (6) near described fusion device head (1), lower end near described fusion device afterbody (2).
6. as minimally Invasive lumbar fusion device as described in the claim 4, it is characterized in that be provided with port (7) on described outside inserting surface (4), this port (7) communicates with described accommodation space.
7. as minimally Invasive lumbar fusion device as described in the claim 6, it is characterized in that described port (7) is at least two, vertically be provided with along described fusion device head (1), fusion device afterbody (2) direction.
8. as minimally Invasive lumbar fusion device as described in the claim 4, it is characterized in that be provided with through hole (8) on described soleplate contact surface (5), this through hole (8) communicates with described accommodation space.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN200710026973A CN101015477B (en) | 2007-02-16 | 2007-02-16 | Minimally Invasive lumbar fusion device |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN200710026973A CN101015477B (en) | 2007-02-16 | 2007-02-16 | Minimally Invasive lumbar fusion device |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN101015477A CN101015477A (en) | 2007-08-15 |
| CN101015477B true CN101015477B (en) | 2010-05-26 |
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN200710026973A Expired - Fee Related CN101015477B (en) | 2007-02-16 | 2007-02-16 | Minimally Invasive lumbar fusion device |
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Families Citing this family (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103494658B (en) * | 2013-08-16 | 2015-09-30 | 杨永竑 | A kind of can Wicresoft implant combined spinal cage assembly |
| CN105287058B (en) * | 2014-07-24 | 2020-09-11 | 温州医科大学附属第二医院、温州医科大学附属育英儿童医院 | Adapted transpedicular intervertebral disc oblique screw interbody fusion cage |
| CN108095867B (en) * | 2018-02-12 | 2023-08-01 | 博能华医疗器械（北京）有限公司 | Four-side-expandable interbody fusion cage |
| CN112674916B (en) * | 2020-12-17 | 2022-12-27 | 湖南华翔医疗科技有限公司 | Intervertebral fusion cage |
Citations (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US6537320B1 (en) * | 1998-10-30 | 2003-03-25 | Gary K. Michelson | Self-broaching, rotatable, push-in interbody spinal fusion implant and method for deployment thereof |
| US6699288B2 (en) * | 2000-03-22 | 2004-03-02 | Scolio Gmbh | Cage-type intervertebral implant |
-
2007
- 2007-02-16 CN CN200710026973A patent/CN101015477B/en not_active Expired - Fee Related
Patent Citations (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US6537320B1 (en) * | 1998-10-30 | 2003-03-25 | Gary K. Michelson | Self-broaching, rotatable, push-in interbody spinal fusion implant and method for deployment thereof |
| US6699288B2 (en) * | 2000-03-22 | 2004-03-02 | Scolio Gmbh | Cage-type intervertebral implant |
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| Publication number | Publication date |
|---|---|
| CN101015477A (en) | 2007-08-15 |
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Granted publication date: 20100526 Termination date: 20110216 |