CN109157311B - Minimally invasive implantation shape memory interbody fusion cage - Google Patents
Minimally invasive implantation shape memory interbody fusion cage Download PDFInfo
- Publication number
- CN109157311B CN109157311B CN201811176168.2A CN201811176168A CN109157311B CN 109157311 B CN109157311 B CN 109157311B CN 201811176168 A CN201811176168 A CN 201811176168A CN 109157311 B CN109157311 B CN 109157311B
- Authority
- CN
- China
- Prior art keywords
- memory
- side beam
- front beam
- memory deformation
- minimally invasive
- 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.)
- Active
Links
Images
Landscapes
- Prostheses (AREA)
Abstract
The invention relates to a minimally invasive implantation shape memory interbody fusion cage for spinal surgery, which is a divisional application of 201410358699.9. The minimally invasive embedded shape memory interbody fusion cage is of a frame type hollow structure and consists of a plurality of upright post shafts, a front beam, a side beam, a memory deformation front beam, a plurality of shaft peripheral rings and an open window. The two ends of the front beam, the side beam, the memory deformation side beam and the memory deformation front beam are mutually connected through the clamping groove structure, the raised head structure and the shaft circumferential rings, and the shaft circumferential rings on different layers are correspondingly sleeved on the upright post shaft. The memory deformation side beam and the memory deformation front beam are made of medical titanium-nickel memory alloy with a shape memory function. The invention can enter into the intervertebral space through the existing tiny channel, not only has the advantages of small wound, light pain, quick recovery, less complication and the like, but also can increase the contact area with the upper and lower end plates of the vertebral body after being unfolded, more implanted sclerotin and improve the fusion rate.
Description
The patent application of the invention is a divisional application, and the application numbers of the original application are as follows: 201410358699.9, the filing date is: 7, month 27 in 2014, the invention name is: a minimally invasive implantation shape memory intervertebral fusion cage.
Technical Field
The invention relates to a minimally invasive implantation shape memory interbody fusion cage used in the medical field and spinal surgery.
Background
Diseases such as cervical intervertebral disc protrusion, cervical spinal canal stenosis, unstable cervical spinal segment, thoracic intervertebral disc protrusion, lumbar spinal canal stenosis, unstable lumbar spinal segment and lumbar spondylolisthesis caused by spinal degeneration are quite common in clinic. The lumbar interbody fusion has definite curative effect, has been applied for hundreds of years, is a main means for treating the diseases, and is one of the most widely applied operation modes of spinal surgery.
The intervertebral fusion comprises anterior intervertebral fusion, posterior intervertebral fusion, transforaminal approach lumbar intervertebral fusion, lateral approach lumbar intervertebral fusion and the like.
Anterior intervertebral fusion enters the intervertebral space from the front, can strut more effectively and restore the intervertebral space height, and the anterior approach can clear away the intervertebral disc of degeneration more thoroughly simultaneously, and ALIF need not pull dura mater sac and nerve root moreover to the damage of nerve root and dura mater sac has been avoided. In addition, ALIF protects the integrity of the posterior lumbar structures such as vertebral plates and facet joints. The anterior approach of cervical vertebra operation is common, but the anterior approach of lumbar vertebra operation is easy to damage great vessels and sympathetic plexus, resulting in complications such as retrograde ejaculation and dysuria.
The posterior way interbody fusion is to accomplish interbody fusion through the posterior way canalis spinalis to the stability of middle pillar before the lumbar vertebrae is obtained, the lumbar vertebrae interbody fusion through intervertebral foramen access gets into the lumbar vertebrae clearance from unilateral intervertebral foramen access, accomplishes a series of processes such as discectomy, bone grafting, interbody fusion cage implantation, also can provide the two-sided preceding of lumbar vertebrae, the middle pillar supports, and the outer side is planted the bone and firm internal fixation after the additional, also can obtain the fusion all around of lumbar vertebrae. The lumbar lateral approach interbody fusion is an operation in which the lumbar lateral side is reached by separating the muscles laterally and a decompression fusion is performed.
Various operation modes are open operations, the trauma is large, and the complications are more; with the rapid development of medical surgical instrument high-precision technology, digital imaging technology, computer intelligent technology and the like, the concept of minimally invasive surgery is continuously accepted and accepted by surgeons, and a minimally invasive surgery mode with the advantages of small wound, light pain, quick recovery, few complications and the like is continuously explored by the surgery.
Such as the small incision combined with a special endoscope drag hook or a television endoscope auxiliary descending anterior way intervertebral fusion, a lateral approach intervertebral fusion, a posterior way endoscope auxiliary descending posterior way spine intervertebral fusion and a transforaminal lumbar intervertebral fusion.
Foreign Grob etc. utilize two piece oblique screws to the superior vertebra antedisplacement be greater than 25% simultaneously the intervertebral space highly be less than 75% patient row lumbar vertebrae fusion art (Direct vertebral-body fusion), Birkenmaier etc. think this technique that the patient that does not slide also is the indication of this operation, develop this operation simultaneously under the navigation, name: navigated Oblique Lumbar Interbody Fusion (GO-LIF).
The minimally invasive surgery methods have the advantages of small wound, light pain, quick recovery, few complications and the like.
However, the conventional intervertebral fusion cage is not applicable because the incision is reduced, and a novel small intervertebral fusion cage is needed, but if the size of the intervertebral fusion cage is too small, the contact area between the intervertebral fusion cage and the upper and lower end plates is reduced, so that ideal intervertebral fusion cannot be realized, and the operation fails.
With the improvement of the intervertebral fusion device, it has been reported that an expandable intervertebral fusion device (e.g., B-twin products, Disc-O-technical Technologies, Ltd. Israel) can be implanted percutaneously and expanded after implantation to achieve the purpose of intervertebral fusion. But the mechanical rotary compression mode is adopted, the middle bone grafting area is small, and the bone grafting area is only scattered in a bud shape.
The prior patent publication (publication No. CN1449725A, patent No. 03113393.2) describes a minimally invasive interbody fusion cage made of shape memory alloy which is expanded by a rolling circle type technique, the technique utilizes the function of shape memory of the memory alloy, but after the expansion, the upper end plate and the lower end plate are contacted, no barrier is arranged around the upper end plate and the lower end plate, and bone is easy to leak to the periphery. However, the shape memory alloy is a great advantage material of the minimally invasive intervertebral fusion device.
Disclosure of Invention
How to achieve the aim of placing the interbody fusion cage under a minimally invasive channel to expand the interbody fusion cage in vivo and perform bone grafting fusion well. We have designed such a minimally invasive shape memory interbody cage.
The invention is realized by the following technical scheme:
1. the minimally invasive embedded shape memory interbody fusion cage is of a frame type hollow structure and consists of a plurality of upright post shafts, a front beam, a side beam, a memory deformation front beam, a plurality of shaft peripheral rings and an open window.
2. The two ends of the front beam, the side beam, the memory deformation side beam and the memory deformation front beam are respectively provided with one of a clamping groove structure or a raised head structure, the 360-degree range of the periphery of the shaft peripheral ring is also provided with one of the clamping groove structure or the raised head structure, and if the two ends of the front beam, the side beam, the memory deformation side beam and the memory deformation front beam are provided with the clamping groove structures, the 360-degree range of the periphery of the shaft peripheral ring is provided with the raised head structure; if the raised head structures are arranged at the two ends of the front beam, the side beam, the memory deformation side beam and the memory deformation front beam, the clamping groove structures are arranged in the range of 360 degrees of the periphery of the shaft peripheral ring, namely the two ends of the front beam, the side beam, the memory deformation side beam and the memory deformation front beam are mutually connected with the shaft peripheral ring through the clamping groove structures and the raised head structures, so that the front beam, the side beam, the memory deformation side beam and the memory deformation front beam can rotate and move around the periphery of the shaft peripheral ring.
3. Both ends of the front beam are connected to a shaft peripheral ring connected with one end of the side beam.
4. One end of the side beam is connected to a shaft peripheral ring connected with one end of the front beam, and the other end of the side beam is connected to a shaft peripheral ring connected with the memory deformation side beam and the memory deformation front beam.
5. The two ends of the memory deformation side beam and the memory deformation front beam are respectively connected to a shaft peripheral ring connected with one end of the side beam.
6. The shaft circumference rings of different layers are correspondingly sleeved on the upright post shaft and can rotate around the upright post shaft, so that the three-dimensional space structure is formed.
7. The shape of the memory deformation side beam and the memory deformation front beam is changed due to different temperatures, so that the memory deformation side beam and the memory deformation front beam are straightened at about 37 ℃ after being implanted into a human body, the contact area between the memory deformation side beam and the upper end plate and the lower end plate of a vertebral body is increased, more bone substances are implanted, and the fusion rate is improved.
8. The surface formed by the plurality of the normal beams with different layers is provided with an open window, and the artificial bone or the autogenous bone can be placed into the artificial bone through the open window.
9. The front beam and the side beam are partially made of X-ray-proof materials, so that the position judgment function can be provided for the operation.
The invention can achieve the beneficial effects
The non-deformed front body of the minimally invasive implantation shape memory interbody fusion cage is small in size, can enter an intervertebral space through a current small channel, and when the temperature reaches about 37 ℃ after the minimally invasive implantation shape memory interbody fusion cage enters a body, the memory deformation side beam and the memory deformation front beam become straight, so that the whole body becomes large, and the purpose is achieved.
Therefore, the invention combines the minimally invasive technology, not only has the advantages of small wound, light pain, quick recovery, less complications and the like, but also can increase the contact area with the upper and lower end plates of the vertebral body after being expanded, more implanted bone substances and improve the fusion rate.
Drawings
The attached drawings are as follows: FIG. 1: the invention is a schematic structural diagram before deformation.
FIG. 2: the invention has a deformed structure schematic diagram.
FIG. 3: top view of the invention before it is deformed.
FIG. 4: the invention is a deformed top view.
FIG. 5: the cross section of the clamping groove structure and the raised head structure is schematic.
In the figure: 1. a side beam; 2. a shaft peripheral ring; 3. a column shaft; 4. memorizing the deformed side beam; 5. memorizing a deformed main beam; 6. erecting a beam; 7. opening a window; 8. a raised head structure; 9. a clamping groove structure.
Detailed Description
Example 1:
the anterior spinal fusion is performed under minimally invasive condition or open condition to reach the front of the spinal column, and then the diseased spine is confirmed, intervertebral disc is removed again, and bone is removed and pressure is fully reduced. Taking an undeformed invention with a proper size, placing the undeformed invention into an intervertebral space, wherein the memory deformation side beam 4 and the memory deformation front beam 5 slowly straighten in the body to become the same as the shape in the figure 2, and implanting the undeformed invention into an artificial bone or an autologous bone through a specially-made matched funnel after confirming the position under a C-arm X-ray machine.
Example 2:
the intervertebral disc is removed through a posterior operation approach or through an intervertebral foramen operation approach under an endoscope or under the open traditional operation condition, the upper endplate and the lower endplate are ground off, after sufficient pressure reduction, one of the undeformed invention with proper size is taken out and is placed in an intervertebral space, at the moment, the memory deformation side beam 4 and the memory deformation front beam 5 slowly straighten in the body to become a model in figure 2, and after the position can be confirmed under a C-arm X-ray machine, the artificial bone or the autogenous bone is implanted through a special matched funnel.
Example 3
A posterior decompression four-nail two-rod internal fixation combined intervertebral fusion device is used for implanting artificial bones or autogenous bones into a vertebral space by a posterior operation approach or an intervertebral foramen operation approach under an endoscope or under an open traditional operation condition, removing intervertebral discs, grinding upper and lower end plates, taking one of undeformed invention with proper size after full decompression, and implanting the undeformed invention into the intervertebral space, wherein at the moment, a memory deformation side beam 4 and a memory deformation front beam 5 slowly straighten in a body to become a model in a figure 2, and after the position can be confirmed under a C-arm X-ray machine, implanting artificial bones or autogenous bones through a special matched funnel.
Example 4:
the intervertebral fusion is characterized by that under the condition of endoscopic operation or open traditional operation, the side lumbar muscle or muscular space is passed through to remove intervertebral disk, remove upper and lower end plates, after the pressure is reduced fully, one of the above-mentioned two-dimensional undeformed side beams is placed in the intervertebral space, at this moment, the memory deformed side beam 4 and memory deformed correction beam 5 are slowly straightened in the body, and become the mode in figure 2, and after the position can be confirmed under the C-arm X-ray machine, the artificial bone or self-body bone can be implanted by means of special-made matched funnel.
Claims (3)
1. A minimally invasive implantation shape memory interbody fusion cage is characterized in that: the hollow structure is a frame type hollow structure and consists of a plurality of upright post shafts, a front beam, a side beam, a memory deformation front beam, a plurality of shaft peripheral rings and an open window, wherein both ends of the front beam, the side beam, the memory deformation side beam and the memory deformation front beam are respectively provided with a raised head structure, the peripheral 360-degree range of the shaft peripheral rings is provided with a clamping groove structure, both ends of the front beam, the side beam, the memory deformation side beam and the memory deformation front beam are mutually connected with the shaft peripheral rings through the raised head structures and the clamping groove structures, both ends of the front beam are connected with the shaft peripheral rings connected with one end of the side beam, the other end of the side beam is connected with the shaft peripheral rings connected with the memory deformation side beam and the memory deformation front beam, the shaft peripheral rings of different layers are correspondingly sleeved, can rotate around the upright post shaft to form a three-dimensional space structure, and the surface formed by a plurality of front beams with different layers is provided with an open window.
2. The minimally invasive implanting shape memory interbody fusion cage of claim 1, wherein: the memory deformation side beam and the memory deformation front beam are made of medical titanium-nickel memory alloy with a shape memory function.
3. The minimally invasive implanting shape memory interbody fusion cage of claim 1, wherein: the front and side members are made of a material that is opaque to X-rays.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201811176168.2A CN109157311B (en) | 2014-07-27 | 2014-07-27 | Minimally invasive implantation shape memory interbody fusion cage |
Applications Claiming Priority (2)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201811176168.2A CN109157311B (en) | 2014-07-27 | 2014-07-27 | Minimally invasive implantation shape memory interbody fusion cage |
| CN201410358699.9A CN105310803B (en) | 2014-07-27 | 2014-07-27 | A kind of embedded with minimal invasion shape memory Invasive lumbar fusion device |
Related Parent Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201410358699.9A Division CN105310803B (en) | 2014-07-27 | 2014-07-27 | A kind of embedded with minimal invasion shape memory Invasive lumbar fusion device |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN109157311A CN109157311A (en) | 2019-01-08 |
| CN109157311B true CN109157311B (en) | 2020-09-15 |
Family
ID=55239787
Family Applications (2)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201410358699.9A Active CN105310803B (en) | 2014-07-27 | 2014-07-27 | A kind of embedded with minimal invasion shape memory Invasive lumbar fusion device |
| CN201811176168.2A Active CN109157311B (en) | 2014-07-27 | 2014-07-27 | Minimally invasive implantation shape memory interbody fusion cage |
Family Applications Before (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201410358699.9A Active CN105310803B (en) | 2014-07-27 | 2014-07-27 | A kind of embedded with minimal invasion shape memory Invasive lumbar fusion device |
Country Status (1)
| Country | Link |
|---|---|
| CN (2) | CN105310803B (en) |
Families Citing this family (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106510906B (en) * | 2017-01-01 | 2019-01-25 | 常州华森医疗器械有限公司 | The support construction portion of POROUS TITANIUM Invasive lumbar fusion device |
| CN106667626B (en) * | 2017-01-01 | 2019-02-01 | 常州华森医疗器械有限公司 | POROUS TITANIUM Invasive lumbar fusion device and preparation method thereof |
| CN112674916B (en) * | 2020-12-17 | 2022-12-27 | 湖南华翔医疗科技有限公司 | Intervertebral fusion cage |
Family Cites Families (18)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US6019793A (en) * | 1996-10-21 | 2000-02-01 | Synthes | Surgical prosthetic device |
| WO2001001895A1 (en) * | 1999-07-02 | 2001-01-11 | Petrus Besselink | Reinforced expandable cage |
| US6991653B2 (en) * | 2002-03-21 | 2006-01-31 | Sdgi Holdings, Inc. | Vertebral body and disc space replacement devices |
| US20040010315A1 (en) * | 2002-03-29 | 2004-01-15 | Song John K. | Self-expanding intervertebral device |
| CN2579357Y (en) * | 2002-11-29 | 2003-10-15 | 王建华 | Lumber vertebrae anastomat |
| CN1188091C (en) * | 2003-05-01 | 2005-02-09 | 东南大学 | Microwound vertebral body fusion device made of shape memory alloy |
| US7344564B2 (en) * | 2004-06-08 | 2008-03-18 | Spinal Generations, Llc | Expandable spinal stabilization device |
| CN2910134Y (en) * | 2005-11-24 | 2007-06-13 | 袁文 | Self-opening Ni-Ti memory alloy interspinous fusion device for cervical vertebrae |
| US20070233255A1 (en) * | 2006-03-06 | 2007-10-04 | Vermillion Technologies, Llc | Intervertebral disc replacement prosthesis |
| US8808380B2 (en) * | 2007-08-27 | 2014-08-19 | William Casey Fox | Method and apparatus for an osteotomy fixation or arthrodesis cage |
| CN201551419U (en) * | 2009-11-19 | 2010-08-18 | 甘肃国脉生物科技有限责任公司 | Memory alloy vertebral body bracket |
| CN201558198U (en) * | 2009-11-24 | 2010-08-25 | 孙正义 | Memory alloy anterior lumbar interbody fusion device |
| CN103687575B (en) * | 2010-10-05 | 2017-01-18 | 摩根·P·洛里奥 | Intervertebral device and methods of use |
| KR101052833B1 (en) * | 2010-10-28 | 2011-07-29 | 박경우 | A intervertebral cage having flexibility |
| CN101999951B (en) * | 2010-12-04 | 2013-09-11 | 兰州西脉记忆合金股份有限公司 | Memory alloy artificial cervical intervertebral disc |
| EP2691051B1 (en) * | 2011-03-30 | 2017-09-13 | Trinity Orthopedics, LLC | Articulating interbody cage |
| EP2606860B1 (en) * | 2011-12-22 | 2016-07-20 | Biedermann Technologies GmbH & Co. KG | Expandable intervertebral implant |
| KR101371418B1 (en) * | 2013-03-06 | 2014-03-25 | (주)강앤박메디컬 | Intervertebral fusion device |
-
2014
- 2014-07-27 CN CN201410358699.9A patent/CN105310803B/en active Active
- 2014-07-27 CN CN201811176168.2A patent/CN109157311B/en active Active
Also Published As
| Publication number | Publication date |
|---|---|
| CN105310803A (en) | 2016-02-10 |
| CN109157311A (en) | 2019-01-08 |
| CN105310803B (en) | 2018-11-23 |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| US11771564B2 (en) | Articulating and expandable vertebral implant | |
| US11759331B2 (en) | Stabilized expandable intervertebral spacer | |
| US11896493B2 (en) | Expandable intervertebral spacer | |
| US11007067B2 (en) | Expandable spinal fusion cage | |
| US20230255788A1 (en) | Articulating expandable intervertebral implant | |
| US8778027B2 (en) | Implant apparatus and method including tee and screw mechanism for spinal fusion | |
| US20120123546A1 (en) | Implant apparatus for spinal fusion | |
| US20150238322A1 (en) | Expandable interbody spacer | |
| US20170165082A1 (en) | Stabilized expandable intervertebral spacer | |
| US11259938B2 (en) | Stabilized intervertebral spacer | |
| CN107405204A (en) | General device for expanding and fusing | |
| CN109157311B (en) | Minimally invasive implantation shape memory interbody fusion cage | |
| CN106073876B (en) | Fusion device | |
| Fang et al. | A novel design of an expandable cage used in posterior interbody fusion for lumbar spine surgery |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| PB01 | Publication | ||
| PB01 | Publication | ||
| SE01 | Entry into force of request for substantive examination | ||
| SE01 | Entry into force of request for substantive examination | ||
| GR01 | Patent grant | ||
| GR01 | Patent grant |