CN103622739A - Centrum non-fusion interspinous device - Google Patents
Centrum non-fusion interspinous device Download PDFInfo
- Publication number
- CN103622739A CN103622739A CN201310615479.5A CN201310615479A CN103622739A CN 103622739 A CN103622739 A CN 103622739A CN 201310615479 A CN201310615479 A CN 201310615479A CN 103622739 A CN103622739 A CN 103622739A
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- CN
- China
- Prior art keywords
- vertebral body
- fusion
- centrum
- rear portion
- shaped
- 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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- A—HUMAN NECESSITIES
- A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
- A61B—DIAGNOSIS; SURGERY; IDENTIFICATION
- A61B17/00—Surgical instruments, devices or methods, e.g. tourniquets
- A61B17/56—Surgical instruments or methods for treatment of bones or joints; Devices specially adapted therefor
- A61B17/58—Surgical instruments or methods for treatment of bones or joints; Devices specially adapted therefor for osteosynthesis, e.g. bone plates, screws, setting implements or the like
- A61B17/68—Internal fixation devices, including fasteners and spinal fixators, even if a part thereof projects from the skin
- A61B17/70—Spinal positioners or stabilisers ; Bone stabilisers comprising fluid filler in an implant
- A61B17/7062—Devices acting on, attached to, or simulating the effect of, vertebral processes, vertebral facets or ribs ; Tools for such devices
-
- A—HUMAN NECESSITIES
- A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
- A61B—DIAGNOSIS; SURGERY; IDENTIFICATION
- A61B17/00—Surgical instruments, devices or methods, e.g. tourniquets
- A61B17/56—Surgical instruments or methods for treatment of bones or joints; Devices specially adapted therefor
- A61B17/58—Surgical instruments or methods for treatment of bones or joints; Devices specially adapted therefor for osteosynthesis, e.g. bone plates, screws, setting implements or the like
- A61B17/68—Internal fixation devices, including fasteners and spinal fixators, even if a part thereof projects from the skin
- A61B17/70—Spinal positioners or stabilisers ; Bone stabilisers comprising fluid filler in an implant
- A61B2017/7073—Spinal positioners or stabilisers ; Bone stabilisers comprising fluid filler in an implant with intervertebral connecting element crossing an imaginary spinal median surface
Abstract
The invention discloses a medical instrument and particularly discloses a centrum non-fusion interspinous device which is used for spinal fixation. The device is composed of a front centrum part, a middle centrum part and a rear centrum part, wherein the front centrum part, the middle centrum part and the rear centrum part are sequentially connected into an integral structure. The front centrum part and the rear centrum part are respectively of a U-shaped groove structure. The opening direction of the U-shaped groove of the front centrum part and that of the U-shaped groove of the rear centrum part are opposite. The middle centrum part is of an S-shaped structure, the upper end of the S-shaped structure is located at the bottom of the U-shaped groove of the front centrum part, and the lower end of the S-shaped structure is located at the bottom of the U-shaped groove of the rear centrum part. The centrum non-fusion interspinous device has the advantages that the operation wound is small, the centrum mobility and stability are good after operation, and an implant is not prone to being displaced or disengaged.
Description
Technical field
The present invention relates to a kind of medical apparatus and instruments, especially a kind of for installing between the non-fusion spinous process of the fixing vertebral body of vertebra.
Background technology
At present, in treatment vertebral disease or when damage, generally all adopt spinal fixing device to be fixed operation to vertebra, or with artificial vertebral body as an alternative thing perform the operation.
Conventional spinal fixing device consists of longitudinal rod and pedicle nail, and being connected and fixed of longitudinal rod and pedicle nail can produce direct impact to surgical effect and quality.And being connected and fixed of longitudinal rod and pedicle nail is all by screwing the fastening means of screw, this mode not only operates convenient not, and easily the head of screw of pedicle nail is strutted during housing screw, causes operative failure.As avoided the slippage when the housing screw of pedicle nail head of screw, not only to improve its manufactured materials requirement, also must there is certain altitude dimensionally, can increase like this pedicle nail shared space in human body, impact operation quality, increases patient painful.
The material of artificial vertebral body substitute is different, there are allograph bone, pottery, metal etc., there is the defects such as source is limited, immunological rejection in allograph bone wherein, ceramic-like is frangible and easily by fatigue rupture in vivo, and titanium alloy can provide immediate postoperative stability, more approaching with the elastic modelling quantity of human body again.Although part artificial vertebral body has the adjustability that can recover vertebral height, maximum shortcoming is the activeness of thoroughly having removed operative site vertebral body.Obviously Traditional Man vertebral body remains in some aspects at some and has problem to be solved, particularly the stability of postoperative vertebral body activeness not, low etc. with the early stage bond strength of upper hypocentrum, its complication be easily cause that implant displacement is even deviate from, a series of load increases that the spinal column of operative site spinal motion function limitation, neighbouring section brings due to compensatory ground over-activity, regression acceleration etc.
Summary of the invention
Technical problem to be solved by this invention is to provide that little, the postoperative vertebral body activeness of a kind of operation wound is strong, good stability, be not easy displacement and the non-fusion spinous process of vertebral body deviate between install.
The present invention addresses the above problem adopted technical scheme: this device is comprised of the vertebral body front portion, vertebral body pars intermedia and the vertebral body rear portion that connect as one successively structure, vertebral body front portion and vertebral body rear portion are U-shaped groove structure, both U-shaped slot opening opposite directions; The S-shaped structure of vertebral body pars intermedia, the upper end of this S shape is positioned at the bottom of the anterior U-shaped groove of vertebral body, and the lower end of this S shape is positioned at the bottom of vertebral body rear portion U-shaped groove.
The interior outside of the sidewall of vertebral body of the present invention front portion and vertebral body rear portion U-shaped groove is provided with the triangular tooth of some evaginations.
On the sidewall at vertebral body of the present invention front portion and vertebral body rear portion, be respectively equipped with pair of screws hole.
Vertebral body pars intermedia of the present invention is provided with the barb profile of tooth of some evaginations on the outer wall near the anterior U-shaped bottom portion of groove of vertebral body place.
Vertebral body pars intermedia of the present invention is provided with the barb profile of tooth of some evaginations on the outer wall near U-shaped bottom portion of groove place, vertebral body rear portion.
The present invention compared with prior art, has following beneficial effect: the vertebral body pars intermedia of this device adopts S shape structure, longitudinally goes up flexiblely, can compress, and is conducive in non-fusion vertebral body implant into body; In vertebral body front portion and vertebral body rear portion, outside is equipped with the triangular tooth of evagination, for helping this non-fusion vertebral body to be fixed on human body, is difficult for displacement and comes off; Vertebral body pars intermedia is equipped with the barb profile of tooth of evagination at and place, vertebral body rear portion anterior near vertebral body, for effectively stoping this non-fusion vertebral body to be moved at spinal column; Use this non-fusion vertebral body can greatly reduce the wound face of operation, flow process simplifies the operation, the stability of postoperative vertebral body activeness is very good, be not easy displacement and deviate from, can effectively improve the impact on complication such as the increase of neighbouring section load, regression acceleration, for the rehabilitation of vertebral body provides a kind of effective means simultaneously.
Accompanying drawing explanation
Below in conjunction with drawings and Examples, the present invention is further described.
Fig. 1 is the front view of the embodiment of the present invention.
Fig. 2 is the right view of the embodiment of the present invention.
Fig. 3 is the axonometric chart of the embodiment of the present invention.
The specific embodiment
Referring to Fig. 1-Fig. 3, the present embodiment is made by titanium alloy material, its by connecting as one successively before the vertebral body of structure 1, vertebral body pars intermedia 2 and vertebral body rear portion 3 form.Vertebral body front portion 1 is identical with the structure at vertebral body rear portion 2, is U-shaped groove structure, both U-shaped slot opening opposite directions.The S-shaped structure of vertebral body pars intermedia 2, the upper end of this S shape is positioned at the bottom of the anterior 1 U-shaped groove of vertebral body, and the lower end of this S shape is positioned at the bottom of vertebral body rear portion 3 U-shaped grooves; Owing to leaving gap between S shape structure, make this non-fusion vertebral body longitudinally upper flexible, can compress, be conducive in non-fusion vertebral body implant into body.
On the sidewall at vertebral body anterior 1 and vertebral body rear portion 2, be respectively equipped with pair of screws hole 4, for fixing of screw.
The interior outside of the sidewall of vertebral body anterior 1 and vertebral body rear portion 2 U-shaped grooves is equipped with the triangular tooth 5 of some evaginations, for helping this non-fusion vertebral body to be fixed on human body, is difficult for displacement and comes off.
Vertebral body pars intermedia 2 is provided with the barb profile of tooth 6 of some evaginations on the outer wall near the anterior 1 U-shaped bottom portion of groove place of vertebral body, vertebral body pars intermedia 2 is provided with the barb profile of tooth 6 of some evaginations on the outer wall near 3 U-shaped bottom portion of groove places, vertebral body rear portion, for effectively stoping this non-fusion vertebral body to be moved at spinal column.
Claims (6)
1. between the non-fusion spinous process of vertebral body, install, it is characterized in that: by the vertebral body that connects as one successively structure anterior (1), vertebral body pars intermedia (2) and vertebral body rear portion (3), formed, vertebral body anterior (1) and vertebral body rear portion (2) is U-shaped groove structure, both U-shaped slot opening opposite directions; The S-shaped structure of vertebral body pars intermedia (2), the upper end of this S shape is positioned at the bottom of vertebral body front portion (1) U-shaped groove, and the lower end of this S shape is positioned at the bottom of vertebral body rear portion (3) U-shaped groove.
2. between the non-fusion spinous process of vertebral body according to claim 1, install, it is characterized in that: the interior outside of the sidewall of described vertebral body anterior (1) and vertebral body rear portion (2) U-shaped groove is provided with the triangular tooth (5) of some evaginations.
3. between the non-fusion spinous process of vertebral body according to claim 1 and 2, install, it is characterized in that: on the sidewall of described vertebral body anterior (1) and vertebral body rear portion (2), be respectively equipped with pair of screws hole (4).
4. between the non-fusion spinous process of vertebral body according to claim 1, install, it is characterized in that: described vertebral body pars intermedia (2) is provided with the barb profile of tooth (6) of some evaginations on the outer wall near anterior (1) the U-shaped bottom portion of groove of vertebral body place.
5. between the non-fusion spinous process of vertebral body according to claim 1, install, it is characterized in that: described vertebral body pars intermedia (2) is provided with the barb profile of tooth (6) of some evaginations on the outer wall near U-shaped bottom portion of groove place, vertebral body rear portion (3).
6. between the non-fusion spinous process of vertebral body according to claim 1, install, it is characterized in that: described vertebral body anterior (1), vertebral body pars intermedia (2) and vertebral body rear portion (3) are made by titanium alloy material.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201310615479.5A CN103622739A (en) | 2013-11-28 | 2013-11-28 | Centrum non-fusion interspinous device |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201310615479.5A CN103622739A (en) | 2013-11-28 | 2013-11-28 | Centrum non-fusion interspinous device |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN103622739A true CN103622739A (en) | 2014-03-12 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201310615479.5A Pending CN103622739A (en) | 2013-11-28 | 2013-11-28 | Centrum non-fusion interspinous device |
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| Country | Link |
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| CN (1) | CN103622739A (en) |
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104921793A (en) * | 2015-07-08 | 2015-09-23 | 李照文 | Assembled type interspinous universal stabilizer |
| CN105853032A (en) * | 2016-06-06 | 2016-08-17 | 陆宁 | Second cervical vertebra replacement body |
| CN108056847A (en) * | 2017-12-15 | 2018-05-22 | 深圳清华大学研究院 | For the preceding road lumbar intervertebral fusion device of intervertebral fusion |
| CN110403688A (en) * | 2019-07-31 | 2019-11-05 | 浙江康慈医疗科技有限公司 | Interspinal strutting device |
Citations (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US5645599A (en) * | 1994-07-26 | 1997-07-08 | Fixano | Interspinal vertebral implant |
| CN201064501Y (en) * | 2007-08-08 | 2008-05-28 | 上海通悦医疗器械有限公司 | Medical orthopaedics vertebral column interspinal dynamic fixing implantation device |
| US20080281423A1 (en) * | 2007-05-09 | 2008-11-13 | Ebi, L.P. | Interspinous implant |
| CN101854872A (en) * | 2007-09-14 | 2010-10-06 | 新特斯有限责任公司 | Interspinous spacer |
| CN203107254U (en) * | 2012-12-25 | 2013-08-07 | 北京飞渡朗颐医疗器械有限公司 | Interspinous dynamic stabilization system device |
| CN203280546U (en) * | 2013-04-26 | 2013-11-13 | 天津市威曼生物材料有限公司 | Dynamically-stable spinous process clamp |
| CN203619649U (en) * | 2013-11-28 | 2014-06-04 | 浙江康慈医疗科技有限公司 | Centrum non-fusion interspinous process device |
-
2013
- 2013-11-28 CN CN201310615479.5A patent/CN103622739A/en active Pending
Patent Citations (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US5645599A (en) * | 1994-07-26 | 1997-07-08 | Fixano | Interspinal vertebral implant |
| US20080281423A1 (en) * | 2007-05-09 | 2008-11-13 | Ebi, L.P. | Interspinous implant |
| CN201064501Y (en) * | 2007-08-08 | 2008-05-28 | 上海通悦医疗器械有限公司 | Medical orthopaedics vertebral column interspinal dynamic fixing implantation device |
| CN101854872A (en) * | 2007-09-14 | 2010-10-06 | 新特斯有限责任公司 | Interspinous spacer |
| CN203107254U (en) * | 2012-12-25 | 2013-08-07 | 北京飞渡朗颐医疗器械有限公司 | Interspinous dynamic stabilization system device |
| CN203280546U (en) * | 2013-04-26 | 2013-11-13 | 天津市威曼生物材料有限公司 | Dynamically-stable spinous process clamp |
| CN203619649U (en) * | 2013-11-28 | 2014-06-04 | 浙江康慈医疗科技有限公司 | Centrum non-fusion interspinous process device |
Cited By (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104921793A (en) * | 2015-07-08 | 2015-09-23 | 李照文 | Assembled type interspinous universal stabilizer |
| CN104921793B (en) * | 2015-07-08 | 2017-06-16 | 李照文 | Universal stabilizer between assembly type spine |
| CN105853032A (en) * | 2016-06-06 | 2016-08-17 | 陆宁 | Second cervical vertebra replacement body |
| CN105853032B (en) * | 2016-06-06 | 2017-12-01 | 陆宁 | Axis replacement |
| CN108056847A (en) * | 2017-12-15 | 2018-05-22 | 深圳清华大学研究院 | For the preceding road lumbar intervertebral fusion device of intervertebral fusion |
| CN110403688A (en) * | 2019-07-31 | 2019-11-05 | 浙江康慈医疗科技有限公司 | Interspinal strutting device |
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| PB01 | Publication | ||
| PB01 | Publication | ||
| C10 | Entry into substantive examination | ||
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| RJ01 | Rejection of invention patent application after publication | ||
| RJ01 | Rejection of invention patent application after publication |
Application publication date: 20140312 |