CN105943204A - An expandable spinal fusion cage - Google Patents
An expandable spinal fusion cage Download PDFInfo
- Publication number
- CN105943204A CN105943204A CN201610354992.7A CN201610354992A CN105943204A CN 105943204 A CN105943204 A CN 105943204A CN 201610354992 A CN201610354992 A CN 201610354992A CN 105943204 A CN105943204 A CN 105943204A
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- CN
- China
- Prior art keywords
- outer layer
- expansion tube
- spinal fusion
- layer expansion
- fusion device
- 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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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
- A61F2002/30001—Additional features of subject-matter classified in A61F2/28, A61F2/30 and subgroups thereof
- A61F2002/30003—Material related properties of the prosthesis or of a coating on the prosthesis
- A61F2002/3006—Properties of materials and coating materials
- A61F2002/30075—Properties of materials and coating materials swellable, e.g. when wetted
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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)
- Prostheses (AREA)
- Surgical Instruments (AREA)
Abstract
The invention relates to an expandable spinal fusion cage comprising an outer layer expansion tube (1) and a cylindrical inner core (2) located in the outer layer expansion tube (1). The outer layer expansion tube (1) is fixedly connected with one end of the cylindrical inner core (2); the outer layer expansion tube (1) is provided with expansion deformation parts (11) which can expand and deform by the action of external force to form protrusions. The expandable spinal fusion cage can expand and deform by the action of a force application mechanism and the height can be changed according to predetermined dimensions with high precision, so that the accuracy of surgery is improved, surgery can be carried out rapidly and pain is relieved for patients.
Description
[technical field]
The present invention relates to a kind of inflatable spinal fusion device.
[background technology]
Lumbar intervertebral disc degenerative disease is common to cause lumbago and skelalgia and a handicapped class disease, normally behave as dish source property lumbago, derangement of lumbar facet joint or pressuring nerve and cause sexually transmitted disease (STD), can also cause stenosis of disc space, severe patient may occur in which the diseases such as lumbar spondylolisthesis, affects work and the life of patient.Common method for the treatment of includes expectant treatment, Minimally Invasive Surgery and surgical operation therapy at present, and wherein lumbar spinal fusion is a kind of Therapeutic Method reliable for effect.
Existing spinal fusion device usually bulk, will not dilatancy, doctor needs, first by cutting an openning between the spinal column of patient, to be then filled into by spinal fusion device in the openning between the spinal column of patient, finally sew up during performing an operation.
Existing inflatable spinal fusion device its formed under force application mechanism effect protruding irregular, it is difficult to control protruding deflection, when doctor is applied to perform the operation between the vertebra of patient, easily cause potential safety hazard.
Owing to there are the problems referred to above, it is necessary to it is proposed solution, and the present invention makes the most in this context.
[summary of the invention]
The technical problem to be solved is for above-mentioned deficiency of the prior art, a kind of inflatable spinal fusion device is provided, this inflatable spinal fusion device can occur dilatancy under the effect of force application mechanism, its height and precision expand deformation according to size set in advance, it is greatly enhanced the degree of accuracy of operation, it is easy to quickly perform the operation, releases slight illness for patient.
For achieving the above object, present invention employs following technical proposals:
A kind of inflatable spinal fusion device, including outer layer expansion tube 1 and the cylinder inner core 2 being located in described outer layer expansion tube 1, one end of described outer layer expansion tube 1 and described cylinder inner core 2 is fixing to be connected, and is provided with and can expand the dilatancy portion 11 that deformation formation is protruding under external force on described outer layer expansion tube 1.
Expand as described above to be provided with between variant part 11 at adjacent two and pane 12 and the fixing connecting portion 13 of deformation space is provided for described dilatancy portion 11.
Length L of cylinder inner core 2 is less than length S of described outer layer expansion tube 1 as mentioned above.
The outer wall of cylinder inner core 2 is close to the inwall of described outer layer expansion tube 1 as mentioned above.
It is multiple for expanding as described above variant part 11, and multiple described dilatancy portions 11 are uniformly located on the body of described outer layer expansion tube 1.
It is provided with the draw-in groove 14 being easy to quickly be connected location with force application mechanism 3 in outer layer expansion tube 1 end described above.
It is provided with the female thread 21 being easy to quickly be connected location with force application mechanism 3 in cylinder inner core 2 end described above.
Outer layer expansion tube 1 and described cylinder inner core 2 belong to concentric elements as mentioned above.
After as mentioned above outer layer expansion tube 1 expands deformation under external force, the height a near described force application mechanism 3 one end is in the range of 7.5～13.5mm, and described outer layer expansion tube 1 expands after deformation away from the height b of described force application mechanism 3 one end under external force in the range of 9～15mm.
Inner core 2 other end described above is provided with draw-in groove 22, snapped in described draw-in groove 22 for
Prevent the jump ring 4 of dilatancy portion 11 resilience.
The invention has the beneficial effects as follows:
1, the present invention provides a kind of inflatable spinal fusion device, this inflatable spinal fusion device can occur dilatancy under the effect of force application mechanism, its height and precision expand deformation according to size set in advance, it is greatly enhanced the degree of accuracy of operation, it is easy to quickly perform the operation, releases slight illness for patient.
2, on the body of outer layer expansion tube, it is provided with pane among the present invention, under the effect of force application mechanism, offer deformation space is shunk for outer layer expansion tube, between pane, it is provided with fixing connecting portion, for accurately controlling the deformation size in dilatancy portion, controls the height and distance of molding.
3, described in the present invention, length L of cylinder inner core is less than length S of described outer layer expansion tube, the outer wall of described cylinder inner core is close to the inwall of described outer layer expansion tube, this design makes outer layer expansion tube during contraction distortion, dilatancy portion only forms projection to body lateral direction, can't cave in inboard wall of tube body, ensure the quality of inflatable spinal fusion device, and then ensure surgical effect.
4, after described in the present invention, outer layer expansion tube expands deformation under external force, the height a near described force application mechanism one end is in the range of 7.5～13.5mm, described outer layer expansion tube expands after deformation away from the height b of described force application mechanism one end under external force in the range of 9～15mm, the most inflatable spinal fusion device can carry out deformation design according to the concrete condition of patient, inflatable spinal fusion device can be designed to one end area of section and be more than or less than other end area of section, inflatable spinal fusion device entirety presents round platform column.
[accompanying drawing explanation]
Fig. 1 is the three-dimensional view of the present invention.
Fig. 2 is the process schematic of outer layer bulging tubing deformation of the present invention.
Fig. 3 is the zoomed-in view of g figure among Fig. 2.
Fig. 4 is the original operating state view that the present invention is combined with force application mechanism.
Fig. 5 is the A portion zoomed-in view among Fig. 4.
Fig. 6 is the Status view after the present invention has been combined dilatancy with force application mechanism.
Fig. 7 is the B portion zoomed-in view among Fig. 6.
[detailed description of the invention]
Below in conjunction with the accompanying drawings the present invention is done further detailed description.
As shown in Figures 1 to 7, a kind of inflatable spinal fusion device, including outer layer expansion tube 1 and the cylinder inner core 2 being located in described outer layer expansion tube 1, one end of described outer layer expansion tube 1 and described cylinder inner core 2 is fixing to be connected, described outer layer expansion tube 1 is provided with and can expand the dilatancy portion 11 that deformation formation is protruding under external force, the present invention provides a kind of inflatable spinal fusion device, this inflatable spinal fusion device can occur dilatancy under the effect of force application mechanism, its height and precision expand deformation according to size set in advance, it is greatly enhanced the degree of accuracy of operation, it is easy to quickly carry out hands art, slight illness is released for patient.
As shown in Figures 1 to 7, in the present embodiment, it is provided with between adjacent two described dilatancy portions 11 and pane 12 and the fixing connecting portion 13 of deformation space is provided for described dilatancy portion 11, on the body of outer layer expansion tube, it is provided with pane among the present invention, under the effect of force application mechanism, offer deformation space is shunk for outer layer expansion tube, between pane, it is provided with fixing connecting portion, for accurately controlling the deformation size in dilatancy portion, controls the height and distance of molding.
As shown in Figure 1 and Figure 2, in the present embodiment, length L of described cylinder inner core 2 is less than length S of described outer layer expansion tube 1.
As shown in Figures 1 to 7, in the present embodiment, the outer wall of described cylinder inner core 2 is close to the inwall of described outer layer expansion tube 1, described in the present invention, length L of cylinder inner core is less than length S of described outer layer expansion tube, the outer wall of described cylinder inner core is close to the inwall of described outer layer expansion tube, this design makes outer layer expansion tube during contraction distortion, dilatancy portion only forms projection to body lateral direction, can't cave in inboard wall of tube body, ensure the quality of inflatable spinal fusion device, and then ensure surgical effect.
As shown in Figures 1 to 7, in the present embodiment, described dilatancy portion 11 is multiple, and multiple described dilatancy portions 11 are uniformly located on the body of described outer layer expansion tube 1.
As shown in Figures 1 to 7, in the present embodiment, it is provided with, in described outer layer expansion tube 1 end, the draw-in groove 14 being easy to quickly be connected location with force application mechanism 3.
As shown in Figures 1 to 7, in the present embodiment, it is provided with in described cylinder inner core 2 end and is easy to quickly be connected with force application mechanism 3 draw-in groove 14 female thread 21 of location.
As shown in Figures 1 to 7, in the present embodiment, described outer layer expansion tube 1 belongs to concentric elements with described cylinder inner core 2.
As shown in Figures 1 to 7, in the present embodiment, described outer layer expansion tube 1 expands after deformation the height a near described force application mechanism 3 one end under external force in the range of 7.5～13.5mm, described outer layer expansion tube 1 expands after deformation away from the height b of described force application mechanism 3 one end under external force in the range of 9～15mm, the most inflatable spinal fusion device can carry out deformation design according to the concrete condition of patient, inflatable spinal fusion device can be designed to one end area of section more than or less than other end area of section, inflatable spinal fusion device entirety presents round platform column, the beneficial effect of this kind of moulding shows as adapting to the wedge shape space of human body intervertebral, it is easy to the enforcement of operation, it is easy to the rehabilitation of patient.
Product specification:
A represents that described outer layer expansion tube 1 expands the height after deformation near described force application mechanism 3 one end under external force；
B represents that described outer layer expansion tube 1 expands the height after deformation away from described force application mechanism 3 one end under external force；
Another kind of embodiment as the present invention, as shown in the table, described outer layer expansion tube 1 expands after deformation identical away from the height b of described force application mechanism 3 one end under external force near the height a of described force application mechanism 3 one end after expanding deformation under external force with described outer layer expansion tube 1, the numerical value of a Yu b can be 10mm or 12mm or 15mm, a length of 30mm after expansion tube 1 expansion, the beneficial effect of this kind of moulding shows as adapting to the coffin of human body intervertebral, it is easy to the enforcement of operation, it is simple to the rehabilitation of patient.
Indication: late period prolapse of lumbar intervertebral disc；Degeneration intervertebral pathological changes or lumbar vertebra I degree slip.
As shown in Figures 1 to 7, in the present embodiment, described inner core 2 other end is provided with draw-in groove 22, in described draw-in groove 22, snaps in the jump ring 4 for preventing dilatancy portion 11 resilience.
Claims (10)
1. an inflatable spinal fusion device, it is characterised in that: include outer layer expansion tube (1) and be located at
Cylinder inner core (2) in described outer layer expansion tube (1), described outer layer expansion tube (1) and described post
One end of internal core (2) is fixing to be connected, and being provided with on described outer layer expansion tube (1) can masterpiece outside
The dilatancy portion (11) of projection is formed by lower generation dilatancy.
Inflatable spinal fusion device the most according to claim 1, it is characterised in that: adjacent two
It is provided with between individual described dilatancy portion (11) and provides deformation space into described dilatancy portion (11)
Pane (12) and fixing connecting portion (13).
Inflatable spinal fusion device the most according to claim 1, it is characterised in that: described cylinder
Length L of inner core (2) is less than length S of described outer layer expansion tube (1).
Inflatable spinal fusion device the most according to claim 3, it is characterised in that: described cylinder
The outer wall of inner core (2) is close to the inwall of described outer layer expansion tube (1).
Inflatable spinal fusion device the most according to claim 1, it is characterised in that: described expansion
Variant part (11) is multiple, and multiple described dilatancy portions (11) are uniformly located at described outer layer and expand
On the body of pipe (1).
Inflatable spinal fusion device the most according to claim 1, it is characterised in that: outside described
Layer expansion tube (1) end is provided with the draw-in groove (14) being easy to quickly be connected location with force application mechanism (3).
Inflatable spinal fusion device the most according to claim 1, it is characterised in that: at described post
Internal core (2) end is provided with the female thread (21) being easy to quickly be connected location with force application mechanism (3).
Inflatable spinal fusion device the most according to claim 1, it is characterised in that: described outer layer
Expansion tube (1) and described cylinder inner core (2) belong to concentric elements.
Inflatable spinal fusion device the most according to claim 8, it is characterised in that: described outer layer
Expansion tube (1) is close described force application mechanism (3) one end after expanding deformation under external force
Highly a is in the range of 7.5～13.5mm, and described outer layer expansion tube (1) occurs swollen under external force
Away from the height b of described force application mechanism (3) one end in the range of 9～15mm after bulging deformation.
Inflatable spinal fusion device the most according to claim 1, it is characterised in that: in described
Core (2) other end is provided with draw-in groove (22), has snapped in for preventing swollen in described draw-in groove (22)
The jump ring (4) of bulging deformation portion (11) resilience.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201610354992.7A CN105943204B (en) | 2016-05-24 | 2016-05-24 | A kind of inflatable spinal fusion device |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201610354992.7A CN105943204B (en) | 2016-05-24 | 2016-05-24 | A kind of inflatable spinal fusion device |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN105943204A true CN105943204A (en) | 2016-09-21 |
| CN105943204B CN105943204B (en) | 2018-02-23 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201610354992.7A Active CN105943204B (en) | 2016-05-24 | 2016-05-24 | A kind of inflatable spinal fusion device |
Country Status (1)
| Country | Link |
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| CN (1) | CN105943204B (en) |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN108113782A (en) * | 2017-12-12 | 2018-06-05 | 中以医疗技术发展有限公司 | Threaded fusion cage |
| CN110769784A (en) * | 2016-10-25 | 2020-02-07 | 肌肉骨骼科学教育研究所有限公司 | Implant with protected fusion zone |
| CN113303911A (en) * | 2021-06-17 | 2021-08-27 | 浙江大学 | Modular flexible operating arm based on single power source |
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| US20020068977A1 (en) * | 2000-12-05 | 2002-06-06 | Jackson Roger P. | Anterior variable expandable fusion cage |
| CN1383790A (en) * | 2001-04-28 | 2002-12-11 | 李春泽 | Spondylodesis graft |
| US20090171390A1 (en) * | 2007-12-31 | 2009-07-02 | Meera Sankaran | Bone fusion device and methods |
| US7621950B1 (en) * | 1999-01-27 | 2009-11-24 | Kyphon Sarl | Expandable intervertebral spacer |
| CN202128534U (en) * | 2011-04-11 | 2012-02-01 | 广州医学院第二附属医院 | Expansion type cervical interbody fusion cage with buckle |
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| CN203341866U (en) * | 2013-03-19 | 2013-12-18 | 中国人民解放军第二军医大学 | Interbody fusion cage with expandable lumbar |
| US20140194992A1 (en) * | 2013-01-04 | 2014-07-10 | Medevice Ip Holdings, Llc | Expandable interbody (lateral, posterior, anterior) multi-access cage for spinal surgery |
| CN205964233U (en) * | 2016-05-24 | 2017-02-22 | 中山市世医堂医疗器械有限公司 | Expandable backbone is implanted and is fused ware |
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Patent Citations (10)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US7621950B1 (en) * | 1999-01-27 | 2009-11-24 | Kyphon Sarl | Expandable intervertebral spacer |
| US20020068977A1 (en) * | 2000-12-05 | 2002-06-06 | Jackson Roger P. | Anterior variable expandable fusion cage |
| CN1383790A (en) * | 2001-04-28 | 2002-12-11 | 李春泽 | Spondylodesis graft |
| US20090171390A1 (en) * | 2007-12-31 | 2009-07-02 | Meera Sankaran | Bone fusion device and methods |
| CN102510742A (en) * | 2009-06-17 | 2012-06-20 | 三位一体整形有限责任公司 | Expanding intervertebral device and methods of use |
| CN202128534U (en) * | 2011-04-11 | 2012-02-01 | 广州医学院第二附属医院 | Expansion type cervical interbody fusion cage with buckle |
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| CN203341866U (en) * | 2013-03-19 | 2013-12-18 | 中国人民解放军第二军医大学 | Interbody fusion cage with expandable lumbar |
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Cited By (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110769784A (en) * | 2016-10-25 | 2020-02-07 | 肌肉骨骼科学教育研究所有限公司 | Implant with protected fusion zone |
| CN110769784B (en) * | 2016-10-25 | 2022-04-05 | 肌肉骨骼科学教育研究所有限公司 | Implant with protected fusion zone |
| US11452611B2 (en) | 2016-10-25 | 2022-09-27 | Institute for Musculoskeletal Science and Education, Ltd. | Implant with protected fusion zones |
| CN108113782A (en) * | 2017-12-12 | 2018-06-05 | 中以医疗技术发展有限公司 | Threaded fusion cage |
| CN113303911A (en) * | 2021-06-17 | 2021-08-27 | 浙江大学 | Modular flexible operating arm based on single power source |
| WO2022262045A1 (en) * | 2021-06-17 | 2022-12-22 | 浙江大学 | Modularized flexible operation arm based on single power source |
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| Publication number | Publication date |
|---|---|
| CN105943204B (en) | 2018-02-23 |
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