CN106037998A - Variable-angle interbody fusion device - Google Patents
Variable-angle interbody fusion device Download PDFInfo
- Publication number
- CN106037998A CN106037998A CN201610522956.7A CN201610522956A CN106037998A CN 106037998 A CN106037998 A CN 106037998A CN 201610522956 A CN201610522956 A CN 201610522956A CN 106037998 A CN106037998 A CN 106037998A
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- China
- Prior art keywords
- fusion device
- angle
- variable
- invasive lumbar
- lumbar fusion
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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)
- Prostheses (AREA)
Abstract
The present invention discloses a variable-angle interbody fusion device, comprising an anterior segment, a posterior segment, a rotary shaft and a threaded mandrel; the anterior segment and the posterior segment are connected by the rotary shaft, and the threaded mandrel is arranged between the anterior segment and the posterior segment. The variable-angle interbody fusion device has the advantages that when the fusion device is implanted, the size of the fusion device is small, and the fusion device can pass through a channel for the endoscopic operation for performing a minimally invasive operation; and after the fusion device is implanted, the angle of the fusion device can be adjusted through corresponding surgical instruments, so that the morphological structure of the fusion device is changed, the bone contact area is increased, and the stress is effectively dispersed.
Description
Technical field
The present invention relates to medical instruments field, be specifically related to the Invasive lumbar fusion device of a kind of variable-angle.
Background technology
Lumbar degenerative disease (includes lumbar spinal stenosis, lumbar spondylolisthesis, Degenerative scoliosis and discogenic disease
Sick etc.) Therapeutic Principle be to release nerve compression and rebuild the stability of spinal column.The reconstruction of spinal stabilization depend on vertebral body with
Bone between vertebral body connects, and method the earliest is that iliac is planted between vertebral body to reach interpyramidal fusion by premenstrual road.20
The eighties in century, a kind of Invasive lumbar fusion device through the way of escape starts for treating lumbar degenerative illness, hereafter lumbar vertebral posterior vertebral body
Between integration technology progressively develop into treatment lumbar degenerative disease goldstandard art formula.
Invasive lumbar fusion device merge influence factor essentially consist in the interface stability performance between fusion device and bone soleplate and from
Stability energy.Fusion device volume is the biggest, and bone soleplate is the biggest with fusion device contact area, in theory from the point of view of, fusion device and bone are eventually
Interface stability performance between plate is more preferable, and Lumbar Fusion segmental stabilization is the strongest, fusion rate is the highest.But in practical operation, fusion device
Volume is big, is too much destroyed and increases latent instability, additionally by rock-steady structure original to articular process and annulus fibrosus disci intervertebralis etc.
Fusion device volume is the biggest, and in art, the probability of nerve injury is the biggest.In actual therapeutic, often advise implanting two pieces from spinal column bilateral
Invasive lumbar fusion device is to obtain more preferable stability, but two pieces of fusion devices can increase hemorrhage and neural respectively from the implantation of spinal column both sides
The risk of damage.It addition, the minimally invasive spine fusion such as carried out according to endoscopic technique, it requires that fusion device passes through Wicresoft
Passage, it is therefore desirable to when fusion device is implanted, volume is little, but need bigger bone contact area, dispersive stress after implanting.
Summary of the invention
The present invention is directed to problem above, it is provided that the Invasive lumbar fusion device of a kind of variable-angle, implant volume little, can lead to after implantation
Cross angle between the change split of corresponding operating theater instruments and finally adjust its morphosis, play the effect of two pieces of Invasive lumbar fusion devices, increase
Fusion device and the bone contact area of upper and lower vertebral plate, effective dispersive stress, reduces the incidence rate of collapse of vertebra.
The technical scheme that this programme is used is as follows:
The Invasive lumbar fusion device of a kind of variable-angle, including leading portion, back segment, rotating shaft and threaded mandrel；Described leading portion and back segment
Between be attached by rotating shaft, described threaded mandrel is arranged between described leading portion and back segment.
Described leading portion is provided with the through hole coordinated with described rotating shaft.
Described leading portion is provided with the recessed joinery and its construction coordinated with described back segment.
Described leading portion is provided with the bone grafting hole of up/down perforation.
Described back segment is provided with the through hole coordinated with described rotating shaft.
Described back segment is provided with the screwed hole passed through for described threaded mandrel.
Described back segment is provided with the protrusion joinery and its construction that joinery and its construction recessed with described leading portion matches.
Described leading portion is provided with anti-slop serrations with the upper and lower surface of back segment.
Described leading portion can be promoted by threaded mandrel, rotates around the axis, thus forms different angles from described back segment.
The Invasive lumbar fusion device of variable-angle of the present invention, leading portion arranges joinery and its construction with back segment and coordinates, and by with in
The rotating shaft that axle is arranged is attached.Described back segment is provided with the through hole by threaded mandrel, promotes described by rotating threaded mandrel
Leading portion rotates around the axis, and reaches to regulate the effect of fusion device angle.
The present invention coordinates the angular transformation achieving fusion device by threaded mandrel and rotating shaft, namely the form of fusion device turns
Change, thus increase fusion device and interpyramidal bone contact area.
Compared to existing technology, the beneficial effects of the present invention is: when the present invention implants, volume is little, endoscopic surgery can be passed through
Under passage carry out Minimally Invasive Surgery, angle between split can be changed by corresponding operating theater instruments after implantation and finally adjust its form and tie
Structure, plays the effect of two pieces of Invasive lumbar fusion devices, increases the bone contact area of fusion device and upper and lower vertebral plate, effective dispersive stress,
Reduce the incidence rate of collapse of vertebra.
Accompanying drawing explanation
Fig. 1 is the Invasive lumbar fusion device of described variable-angle top view when not adjusting angle；
Fig. 2 is the top view after the Invasive lumbar fusion device of described variable-angle carries out angle adjustment；
Fig. 3 is the structural representation of the Invasive lumbar fusion device leading portion of described variable-angle；
Fig. 4 is the structural representation of the Invasive lumbar fusion device back segment of described variable-angle；
Fig. 5 be described variable-angle Invasive lumbar fusion device back segment assembling rotating shaft and threaded mandrel after schematic diagram.
1: leading portion, 2: back segment, 3: threaded mandrel, 4: rotating shaft, 11: leading portion bone grafting hole, 12: through hole, 13: recessed Tenon is tied
Structure, 14: anti-slop serrations, 21: back segment bone grafting hole, 22: through hole, 23: screwed hole, 24: protrude joinery and its construction, 25:25.
Detailed description of the invention
With detailed description of the invention, the present invention is described in further detail below in conjunction with the accompanying drawings.
As shown in Figure 1, 2, the Invasive lumbar fusion device of described variable-angle includes leading portion 1, back segment 2, threaded mandrel 3 and rotating shaft 4,
Described leading portion 1 is connected by described rotating shaft 4 with back segment 2.Fig. 1 is that the Invasive lumbar fusion device of described variable-angle is not when adjusting angle
Top view, Fig. 2 is the top view after the Invasive lumbar fusion device of described variable-angle carries out angle adjustment, between described leading portion and back segment
Different angles can be adjusted to as required, finally adjust the present invention's by changing angle between two splits (leading portion, back segment)
Morphosis.
Fig. 3 is the structural representation of the Invasive lumbar fusion device leading portion of described variable-angle.As it is shown on figure 3, described leading portion is provided with
Bone grafting hole 11, the through hole 12 coordinated with described rotating shaft 4, the recessed joinery and its construction 13 coordinated with described back segment 2, and upper and lower surface
Set anti-slop serrations 14.
Fig. 4 is the structural representation of the Invasive lumbar fusion device back segment of described variable-angle.As shown in Figure 4, described back segment 2 includes
Bone grafting hole 21, the through hole 22 coordinated with described rotating shaft 4, the screwed hole 23 passed through for described threaded mandrel 3, recessed with described leading portion
The protrusion joinery and its construction 24 that joinery and its construction 13 coordinates, and the anti-slop serrations 25 set by upper and lower surface.Fig. 5 is described variable-angle
Schematic diagram after the assembling rotating shaft of Invasive lumbar fusion device back segment and threaded mandrel.
During use, use fusion device implantation instrument to implant between vertebral body by the present invention not adjusting angle by passage, adjust
Behind position, turn threaded mandrel promotes leading portion to rotate with rotating shaft for axle, adjusts the angle between leading portion and back segment, makes this
The bright angle to need is positioned between vertebral body, plays the effect of two pieces of Invasive lumbar fusion devices, increases the bone of fusion device and upper and lower vertebral plate
Property contact area, effective dispersive stress, reduce collapse of vertebra incidence rate.
The foregoing is only the preferred embodiment of the present invention, protection scope of the present invention is not limited in above-mentioned embodiment party
Formula, every technical scheme belonging to the principle of the invention belongs to protection scope of the present invention.For those skilled in the art
Speech, the some improvement carried out on the premise of without departing from the principle of the present invention, these improve the protection model that also should be regarded as the present invention
Enclose.
Claims (10)
1. the Invasive lumbar fusion device of a variable-angle, it is characterised in that the Invasive lumbar fusion device of described variable-angle include leading portion, after
Section, rotating shaft and threaded mandrel；Be attached by rotating shaft between described leading portion and back segment, described threaded mandrel be arranged at described before
Between section and back segment.
The Invasive lumbar fusion device of variable-angle the most according to claim 1, it is characterised in that described leading portion is provided with and described turn
The through hole that axle coordinates.
The Invasive lumbar fusion device of variable-angle the most according to claim 1, it is characterised in that described leading portion be provided with described after
The recessed joinery and its construction of Duan Peihe.
The Invasive lumbar fusion device of variable-angle the most according to claim 1, it is characterised in that described leading portion is provided with up/down perforation
Bone grafting hole.
The Invasive lumbar fusion device of variable-angle the most according to claim 1, it is characterised in that described back segment is provided with and described rotating shaft
The through hole coordinated.
The Invasive lumbar fusion device of variable-angle the most according to claim 1, it is characterised in that described back segment is provided with for described spiral shell
The screwed hole that stricture of vagina push rod passes through.
The Invasive lumbar fusion device of variable-angle the most according to claim 1, it is characterised in that described back segment be provided with described before
The protrusion joinery and its construction that the recessed joinery and its construction of section matches.
The Invasive lumbar fusion device of variable-angle the most according to claim 1, it is characterised in that described back segment is provided with up/down perforation
Bone grafting hole.
The Invasive lumbar fusion device of variable-angle the most according to claim 1, it is characterised in that described leading portion is upper and lower with back segment
Surface is provided with anti-slop serrations.
The Invasive lumbar fusion device of variable-angle the most according to claim 1, it is characterised in that described leading portion can pass through screw thread
Push rod promotes, and rotates around the axis, thus forms different angles from described back segment.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201610522956.7A CN106037998A (en) | 2016-07-05 | 2016-07-05 | Variable-angle interbody fusion device |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201610522956.7A CN106037998A (en) | 2016-07-05 | 2016-07-05 | Variable-angle interbody fusion device |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN106037998A true CN106037998A (en) | 2016-10-26 |
Family
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201610522956.7A Pending CN106037998A (en) | 2016-07-05 | 2016-07-05 | Variable-angle interbody fusion device |
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| CN (1) | CN106037998A (en) |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109602466A (en) * | 2018-12-17 | 2019-04-12 | 南昌市第医院 | A kind of cervical facet joint fusion device |
| CN110368146A (en) * | 2019-07-12 | 2019-10-25 | 浙江科惠医疗器械股份有限公司 | A kind of rotary opening formula Invasive lumbar fusion device |
| CN112674916A (en) * | 2020-12-17 | 2021-04-20 | 湖南华翔增量制造股份有限公司 | Interbody fusion cage |
Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US20070260314A1 (en) * | 2006-05-02 | 2007-11-08 | Ashok Biyani | Transforaminal lumbar interbody fusion cage |
| EP1925271A1 (en) * | 2006-11-22 | 2008-05-28 | Flexismed SA | Intervertebral implant |
| FR2951370B1 (en) * | 2009-10-16 | 2012-05-11 | Arca Medica Gmbh | INTERVERTEBRAL FUSION IMPLANT |
| CN202776642U (en) * | 2012-08-31 | 2013-03-13 | 上海交通大学附属第一人民医院 | Angle-adjustable cervical intervertebral fusion device |
| CN204931904U (en) * | 2015-09-22 | 2016-01-06 | 浙江科惠医疗器械股份有限公司 | The rotating large volume fusion device of a kind of multi-joint |
-
2016
- 2016-07-05 CN CN201610522956.7A patent/CN106037998A/en active Pending
Patent Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US20070260314A1 (en) * | 2006-05-02 | 2007-11-08 | Ashok Biyani | Transforaminal lumbar interbody fusion cage |
| EP1925271A1 (en) * | 2006-11-22 | 2008-05-28 | Flexismed SA | Intervertebral implant |
| FR2951370B1 (en) * | 2009-10-16 | 2012-05-11 | Arca Medica Gmbh | INTERVERTEBRAL FUSION IMPLANT |
| CN202776642U (en) * | 2012-08-31 | 2013-03-13 | 上海交通大学附属第一人民医院 | Angle-adjustable cervical intervertebral fusion device |
| CN204931904U (en) * | 2015-09-22 | 2016-01-06 | 浙江科惠医疗器械股份有限公司 | The rotating large volume fusion device of a kind of multi-joint |
Cited By (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109602466A (en) * | 2018-12-17 | 2019-04-12 | 南昌市第医院 | A kind of cervical facet joint fusion device |
| CN109602466B (en) * | 2018-12-17 | 2024-02-06 | 南昌市第一医院 | Cervical vertebra facet joint fusion device |
| CN110368146A (en) * | 2019-07-12 | 2019-10-25 | 浙江科惠医疗器械股份有限公司 | A kind of rotary opening formula Invasive lumbar fusion device |
| CN110368146B (en) * | 2019-07-12 | 2020-07-31 | 浙江科惠医疗器械股份有限公司 | Rotary expanding type interbody fusion cage |
| CN112674916A (en) * | 2020-12-17 | 2021-04-20 | 湖南华翔增量制造股份有限公司 | Interbody fusion cage |
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| PB01 | Publication | ||
| C10 | Entry into substantive examination | ||
| SE01 | Entry into force of request for substantive examination | ||
| RJ01 | Rejection of invention patent application after publication | ||
| RJ01 | Rejection of invention patent application after publication |
Application publication date: 20161026 |