CN101361674B - Angle-adjustable intervertebral expansion device - Google Patents
Angle-adjustable intervertebral expansion device Download PDFInfo
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- CN101361674B CN101361674B CN2007101201258A CN200710120125A CN101361674B CN 101361674 B CN101361674 B CN 101361674B CN 2007101201258 A CN2007101201258 A CN 2007101201258A CN 200710120125 A CN200710120125 A CN 200710120125A CN 101361674 B CN101361674 B CN 101361674B
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- angle
- expansion device
- adjustable intervertebral
- intervertebral expansion
- leg
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Abstract
The invention provides an intervertebral expanding device provided with variable angles, which has two stand bars that extend along approximate side directions and a connecting part that connects butt ends of the two stand bars and extends lengthways, and the stand bars and the connecting part form an approximately U-shaped framework structure, wherein, terminal parts of the two stand bars have an embedding part that is used for being respectively embedded into different backbones, and the intervertebral expanding device provided with variable angles is made of shape memory alloys and is configured to form a preset expanding angle between the two stand bars when the temperature of a memorized shape is restored. The intervertebral expanding device provided with variable angles can simply, conveniently and flexibly implement the rectification operation of vertebral deformation, has simple structure and low production cost, and is very favorable for the popularization and the applicationin vertebral rectification operations.
Description
Technical field
The present invention relates to medical apparatus and instruments, particularly relate to a kind of angle-adjustable intervertebral expansion device that is used to change the intervertebral expansion angle.
Background technology
In treatment during spinal disease, for example, when carrying out spinal column orthopedic at scoliosis etc. or at spinal trauma carry out to spinal column reset fixedly the time, adopt some stationary devices that reset usually, needs are treated or fixed vertebra resets fixing.
For example, for deformity of spine or spinal trauma, a kind of common Therapeutic Method is, anchoring nail on needs reset fixed vertebra up and down (being neighbouring vertebra or the vertebra up and down that separates the pathological changes vertebra), connect hookup in the end of two nails then, for example band angle positive and negative screw bolt Osteological device described in the Chinese patent 92244110.3 that formerly proposes of the inventor and the Osteological reducing and fixing orthopaedical device described in the Chinese patent 99126379.0, by being connected two nail end connection devices, two nails are produced resetting of vertebra up and down opened, thereby vertebra is up and down resetted and fixes.
Above-mentioned band angle positive and negative screw bolt Osteological device and Osteological reducing and fixing orthopaedical device can play orthopedic and fixation in treatment deformity of spine or spinal trauma, but, this fixing and orthopedic mainly be along spinal column axis to support force aspect work, the strength of adjustment aspect the opening angle between the vertebra up and down is not remarkable.
When carrying out spinal column orthopedic for the treatment scoliosis, a kind of common Therapeutic Method is, anchoring nail on the pedicle of vertebral arch of the vertebra both sides that needs are treated, to be connected up and down then, each nail of the same side of the pedicle of vertebral arch of vertebra utilizes connecting device to connect along the vertical direction, by connecting device make be connected up and down the nail of the pedicle of vertebral arch of vertebra reset fixing, thereby reach orthopedic effect to spinal column.Perhaps, the Horizontal junction device among the Pediculus arcus vertebrae and spinal orthosis of describing in the Chinese patent application 200610144374.6 that also can adopt the inventor formerly to propose, this corrective system makes the fixed operation that resets between a plurality of nails simplify greatly.
The method of various treatment spinal diseases recited above and related device, in concrete operative treatment, can obtain excellent curative, but in concrete operation technique, corresponding backbone correcting system still is considered to complex structure, and need carry out complicated operations comparatively or the people's that implements operation skilled operation degree is had higher requirements, therefore, need further simplified structure.
In addition, for some situation, for example in scoliosis orthopedic, if when needing orthopedic orientation on lateral, to be in a plurality of different azimuth, this backbone correcting system makes that operation is complicated more or is difficult to operation owing to be connected the different up and down cross-connecting apparatus influence each other of different pedicles of vertebral arch.
To reducing the requiring under the ever-increasing situation of operation technique difficulty, need to propose a kind of new medical treatment device, make and in the operation of these spinal diseases of treatment, can further reduce operation easier.
Summary of the invention
The present inventor on the basis of above-mentioned technology, further concentrates on studies, and has proposed a kind of angle-adjustable intervertebral expansion device of being convenient to operation technique.
The invention provides a kind of angle-adjustable intervertebral expansion device, described angle-adjustable intervertebral expansion device has the coupling part that extends longitudinally that is connected with base end part at two legs towards two legs that roughly extend laterally, described leg and coupling part form roughly U-shaped frame structure, the terminal part of wherein said two legs has the implantation portion that is used for being implanted to respectively different vertebras, and after implantation, described angle-adjustable intervertebral expansion device is not in the gap between vertebra, described angle-adjustable intervertebral expansion device is formed by marmem, and forms predetermined opening angle between two legs when being arranged in the temperature of refresh memory shape.
The present invention has utilized the characteristic of memorial alloy dexterously, the angle-adjustable intervertebral expansion device that utilizes memorial alloy to make, can solve and implant the preceding undesirable problem that is difficult to implant of spinal column angle, and solve the problem of angle correct complicated operation in the implantation process.Using (operation) before, choose the angle-adjustable intervertebral expansion device of suitable predetermined opening angle, this deploying device is cooled to below the temperature of refresh memory shape, thereby this deploying device can be bent to arbitrarily angled and shape.In operation process, practical situation according to the pathological changes vertebra, implant the angle position of selecting to be fit to, because this moment, this deploying device was in below the temperature of refresh memory shape, can be bent to arbitrarily angled and shape, thereby greatly reduce operating difficulty, make this implantation work relatively easily to finish.After implantation, based on the body temperature of human body, along with the temperature of this deploying device rises, this deploying device refresh memory shape promptly returns to and makes the shape that forms predetermined opening angle between two legs, thereby carries out orthopedic to the spinal column of implanted leg.
In concrete operation process,, on the implantable two neighbouring joint vertebras of two legs of described angle-adjustable intervertebral expansion device, also can implant between the upper and lower on two vertebras of a joint or more piece vertebra according to practical situation.
In an embodiment of the invention, have Skidproof structure in the implantation portion of described leg, thereby the implantation portion that prevents leg accident from the vertebra is deviate from.As an example, described Skidproof structure is to be formed on the matsurface on the leg implantation portion outer surface or to be formed on reticulate structure on the implantation portion outer surface.
In an embodiment of the invention, the implantation portion end of described leg is a flat, thereby can be convenient to implant, and can prevent that the implantation portion of leg from rotating on vertebra.
In an embodiment of the invention, the implantation portion end of described leg is a taper, thereby can be convenient to implant.
In an embodiment of the invention, described memorial alloy is a Ultimum Ti.
In an embodiment of the invention, the temperature range of the recovery shape memory of described memorial alloy is that 35 degree are between 42 degree, roughly the same with the scope of body temperature, can be easily under the effect of body temperature and stably make described angle-adjustable intervertebral expansion device refresh memory shape thereby implant the back.
It is very simple, convenient that angle-adjustable intervertebral expansion device of the present invention carries out the corrigent operation of the deformity of spinal column, greatly reduced the operation technique difficulty.And, because angle-adjustable intervertebral expansion device of the present invention can correct the angular distortion between any two vertebras, thereby when operation technique, can be flexibly and easily only correct having between the vertebra of angular distortion.And the structure of angle-adjustable intervertebral expansion device of the present invention is very simple, and low cost of manufacture is very beneficial for applying in the spinal correction operation.
Description of drawings
The basic structure sketch map of Fig. 1 angle-adjustable intervertebral expansion device of the present invention.
Fig. 2 angle-adjustable intervertebral expansion device of the present invention is presented to the view between the vertebra of distortion when the temperature of refresh memory shape is following.
View after Fig. 3 angle-adjustable intervertebral expansion device of the present invention leg when reaching the refresh memory temperature opens vertebra corrected.
Fig. 4 angle-adjustable intervertebral expansion device of the present invention is presented to the view that another kind between the vertebra of distortion is implemented structure when the temperature of refresh memory shape is following.
Another kind after Fig. 5 angle-adjustable intervertebral expansion device of the present invention leg when reaching the refresh memory temperature opens vertebra corrected is implemented the view of structure.
The axonometric chart of the angle-adjustable intervertebral expansion device of Fig. 6 other embodiment of the present invention.
The axonometric chart of the angle-adjustable intervertebral expansion device of Fig. 7 other embodiment of the present invention.
The axonometric chart of the angle-adjustable intervertebral expansion device of Fig. 8 other embodiment of the present invention.
The specific embodiment
As shown in Figure 1, angle-adjustable intervertebral expansion device 1 of the present invention has towards two legs 11 that roughly extend laterally, 12 and at two legs 11, the coupling part that extends longitudinally 13 that 12 base end part connects, described leg 11,12 and coupling part 13 form roughly U-shaped frame structure, wherein said two legs 11,12 terminal part has the implantation portion 111 that is used for being implanted to respectively different vertebras, 112, described angle-adjustable intervertebral expansion device 1 is formed by marmem, and two legs 11 when being arranged in the temperature of refresh memory shape, form predetermined opening angle between 12.
In an embodiment of the invention, the memorial alloy of described formation angle-adjustable intervertebral expansion device 1 can be Ultimum Ti.In an embodiment of the invention, the temperature range of the recovery shape memory of described memorial alloy is that 35 degree are between 42 degree, roughly the same with the scope of body temperature, can be easily under the effect of body temperature and stably make described angle-adjustable intervertebral expansion device 1 refresh memory shape thereby implant the back.
Using (operation) before, can choose the angle-adjustable intervertebral expansion device 1 of suitable predetermined opening angle, this deploying device is cooled to below the temperature of refresh memory shape, thereby this deploying device can be bent to arbitrarily angled and shape.In operation process, as shown in Figure 2, be in the temperature of refresh memory shape below owing to this deploying device 1 this moment, subtended angle between two legs 11 can be bent to arbitrarily angled and shape, thereby can be according to the practical situation of pathological changes vertebra 2, make deploying device 1 have suitable angle and shape is implanted, thereby make on its vertebras that are implanted to two distortion easily, greatly reduce operating difficulty, make this implantation work relatively easily to finish.After implantation, body temperature based on human body, temperature rising along with this deploying device, this deploying device 1 refresh memory shape, as shown in Figure 3, promptly return to and make between two legs 11,12 shape that forms predetermined opening angle, thereby the vertebra that drives on this two leg 11,12 returns to normal position, thereby carry out orthopedic the spinal column of implanted leg.
In concrete operation process, according to practical situation, on two legs, 11, the 12 implantable two neighbouring joint vertebras 21,22 of described angle-adjustable intervertebral expansion device 1 (as Fig. 2, shown in Figure 3), also can be between the upper and lower on two vertebras 21,22 of a joint or more piece vertebra as Fig. 4, implantation shown in Figure 5.Because two legs 11,12 towards roughly extending laterally, promptly extend into general radial direction along spinal column, and at two legs 11, the coupling part 13 that 12 base end part connects extends longitudinally, promptly extend into roughly axially the above-below direction of vertebra (or be roughly parallel to) along vertebra, described leg 11,12 and coupling part 13 form roughly U-shaped frame structure, thereby two joint vertebras 21 for the next-door neighbour, 22 and isolated two save vertebras 21,22, all can easily implant, and not only can produce support force effectively, can also produce and make two vertebras 21, the angle of opening angle is opened power between 22, thereby can be more neatly to two vertebras 21, opening angle between 22 is corrected.
Carry out orthopedic operation as can be seen from 1 pair of vertebra of this angle-adjustable intervertebral expansion device of above-mentioned implantation, it is very simple, convenient that angle-adjustable intervertebral expansion device 1 carries out the corrigent operation of the deformity of spinal column, greatly reduced the operation technique difficulty.And, because angle-adjustable intervertebral expansion device 1 of the present invention can correct the angular distortion between any two vertebras 21,22, thereby when operation technique, can be flexibly and easily only correct having between the vertebra of angular distortion.And have leg 11,12 and the middle interconnecting piece of angle-adjustable intervertebral expansion device 1 of the present invention divide 13 structure very simple, and low cost of manufacture is very beneficial for applying in the spinal correction operation.
In an embodiment of the invention,, have Skidproof structure in the implantation portion 111,121 of described leg 11,12, thereby the implantation portion 111,121 that prevents leg 11,12 accident from the vertebra 21,22 is deviate from as Fig. 6, shown in Figure 7.As an example, as shown in Figure 6, described Skidproof structure is the matsurface that is formed on leg 11,12 implantation portions 111,121 outer surfaces; Perhaps, as shown in Figure 7, described Skidproof structure is the reticulate structure that is formed on implantation portion 111,121 outer surfaces, can certainly be other Skidproof structures, deviate from from vertebra 21,22 as long as can be used in the implantation portion 111,121 that prevents leg 11,12, its concrete structure describes in detail no longer one by one at this.
In an optional embodiment of the present invention, as shown in Figure 1, implantation portion 111,112 ends of described leg 11,12 can be flat, thereby can be convenient to implant, and can prevent that the implantation portion 111,121 of leg 11,12 from rotating on vertebra 21,22.As shown in Figure 8, in another optional embodiment of the present invention, the end of the implantation portion 111,121 of described leg 11,12 also can be taper, thereby can be convenient to implant, and this conical end portion can be specially pyramid-shaped, thereby also can prevent the rotation of leg 11,12.
The foregoing description is several specific embodiment of the present invention, only is used to illustrate the present invention, but not is used to limit the present invention.
Claims (7)
1. angle-adjustable intervertebral expansion device, it is characterized in that, described angle-adjustable intervertebral expansion device has the coupling part that extends longitudinally that is connected with base end part at two legs towards two legs that roughly extend laterally, described leg and coupling part form roughly U-shaped frame structure, the terminal part of wherein said two legs has the implantation portion that is used for being implanted to respectively different vertebras, and after implantation, described angle-adjustable intervertebral expansion device is not in the gap between vertebra, described angle-adjustable intervertebral expansion device is formed by marmem, and forms predetermined opening angle between two legs when being arranged in the temperature of refresh memory shape.
2. angle-adjustable intervertebral expansion device according to claim 1 is characterized in that, has Skidproof structure in the implantation portion of described leg.
3. angle-adjustable intervertebral expansion device according to claim 2 is characterized in that, described Skidproof structure is to be formed on the matsurface on the leg implantation portion outer surface or to be formed on reticulate structure on the implantation portion outer surface.
4. angle-adjustable intervertebral expansion device according to claim 1 is characterized in that, the implantation portion end of described leg is a flat.
5. angle-adjustable intervertebral expansion device according to claim 1 is characterized in that, the implantation portion end of described leg is a taper.
6. angle-adjustable intervertebral expansion device according to claim 1 is characterized in that, described memorial alloy is a Ultimum Ti.
7. angle-adjustable intervertebral expansion device according to claim 1 is characterized in that, the temperature range of the recovery shape memory of described memorial alloy is that 35 degree are between 42 degree.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2007101201258A CN101361674B (en) | 2007-08-09 | 2007-08-09 | Angle-adjustable intervertebral expansion device |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2007101201258A CN101361674B (en) | 2007-08-09 | 2007-08-09 | Angle-adjustable intervertebral expansion device |
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| CN101361674A CN101361674A (en) | 2009-02-11 |
| CN101361674B true CN101361674B (en) | 2010-08-11 |
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| CN2007101201258A Expired - Fee Related CN101361674B (en) | 2007-08-09 | 2007-08-09 | Angle-adjustable intervertebral expansion device |
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| CN103750892B (en) * | 2014-02-24 | 2016-01-06 | 张伟 | A kind of compression fracture of spine Minimally Invasive Surgery titanium alloy bar |
Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN2137500Y (en) * | 1992-12-17 | 1993-07-07 | 邹德威 | Orthopedic unit with angular positive-negative thread screw |
| EP0743045A2 (en) * | 1995-04-28 | 1996-11-20 | Gazzani, Romolo Igino | Devices for osteosynthesis |
| US5716416A (en) * | 1996-09-10 | 1998-02-10 | Lin; Chih-I | Artificial intervertebral disk and method for implanting the same |
| CN1299635A (en) * | 1999-12-15 | 2001-06-20 | 邹德威 | Osteological reducing and fixing orthopaedical device |
| CN1372449A (en) * | 1999-07-28 | 2002-10-02 | 百特比威国际工程有限公司 | Improved spinal fusion implants and tool for insertion |
-
2007
- 2007-08-09 CN CN2007101201258A patent/CN101361674B/en not_active Expired - Fee Related
Patent Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN2137500Y (en) * | 1992-12-17 | 1993-07-07 | 邹德威 | Orthopedic unit with angular positive-negative thread screw |
| EP0743045A2 (en) * | 1995-04-28 | 1996-11-20 | Gazzani, Romolo Igino | Devices for osteosynthesis |
| US5716416A (en) * | 1996-09-10 | 1998-02-10 | Lin; Chih-I | Artificial intervertebral disk and method for implanting the same |
| CN1372449A (en) * | 1999-07-28 | 2002-10-02 | 百特比威国际工程有限公司 | Improved spinal fusion implants and tool for insertion |
| CN1299635A (en) * | 1999-12-15 | 2001-06-20 | 邹德威 | Osteological reducing and fixing orthopaedical device |
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| CN101361674A (en) | 2009-02-11 |
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Effective date of registration: 20160324 Address after: 100089 Beijing Haidian District Zizhuyuan Road No. 31, room 915, China and Macao Center Jiahui yuan Patentee after: Beijing Orthopedic Innovation Inc. Address before: 100101 Beijing City, Anxiang Road No. 9 people's Liberation Army No.306 Hospital Patentee before: Zou Dewei |
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| CP03 | Change of name, title or address |
Address after: 102401 No. 11 Baiyang Road, Liangxiang Township, Fangshan District, Beijing Patentee after: BONOVO ORTHOPEDICS, Inc. Address before: Room 915, Jiahui Court, Huaao Center, 31 Zizhuyuan Road, Haidian District, Beijing, 100089 Patentee before: Beijing Orthopedic Innovation Inc. |
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| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20100811 Termination date: 20210809 |
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| CF01 | Termination of patent right due to non-payment of annual fee |