CN105361941A - Atlas vertebral pedicle hollow universal screw - Google Patents
Atlas vertebral pedicle hollow universal screw Download PDFInfo
- Publication number
- CN105361941A CN105361941A CN201510921646.8A CN201510921646A CN105361941A CN 105361941 A CN105361941 A CN 105361941A CN 201510921646 A CN201510921646 A CN 201510921646A CN 105361941 A CN105361941 A CN 105361941A
- Authority
- CN
- China
- Prior art keywords
- atlas
- screw
- rivet nut
- hollow universal
- nail
- 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.)
- Pending
Links
Classifications
-
- 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
- A61B17/84—Fasteners therefor or fasteners being internal fixation devices
- A61B17/86—Pins or screws or threaded wires; nuts therefor
- A61B17/864—Pins or screws or threaded wires; nuts therefor hollow, e.g. with socket or cannulated
-
- 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
- A61B17/7001—Screws or hooks combined with longitudinal elements which do not contact vertebrae
-
- 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
- A61B17/7064—Devices acting on, attached to, or simulating the effect of, vertebral facets; Tools therefor
-
- 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
- A61B17/7074—Tools specially adapted for spinal fixation operations other than for bone removal or filler handling
-
- 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
- A61B17/84—Fasteners therefor or fasteners being internal fixation devices
- A61B17/86—Pins or screws or threaded wires; nuts therefor
- A61B17/8605—Heads, i.e. proximal ends projecting from bone
-
- 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
- A61B2017/564—Methods for bone or joint treatment
Landscapes
- Health & Medical Sciences (AREA)
- Orthopedic Medicine & Surgery (AREA)
- Life Sciences & Earth Sciences (AREA)
- Surgery (AREA)
- Neurology (AREA)
- Heart & Thoracic Surgery (AREA)
- Engineering & Computer Science (AREA)
- Biomedical Technology (AREA)
- Nuclear Medicine, Radiotherapy & Molecular Imaging (AREA)
- Medical Informatics (AREA)
- Molecular Biology (AREA)
- Animal Behavior & Ethology (AREA)
- General Health & Medical Sciences (AREA)
- Public Health (AREA)
- Veterinary Medicine (AREA)
- Prostheses (AREA)
- Surgical Instruments (AREA)
Abstract
The invention provides an atlas vertebral pedicle hollow universal screw, relating to the technical field of medical apparatus and instruments, aiming at improving the bone graft fusion ratio. The atlas vertebral pedicle hollow universal screw comprises a screw body, wherein a movable screw base sleeves the upper end of the screw body, and is a tube with internal threads, two U-shaped grooves opening upwards and communicated with each other in the radial direction are formed in the movable screw base, symmetrically, the upper end of the screw body sinks into a tube cavity of the screw base, and a guide hole communicated in the axial direction is formed in the screw body. The atlas vertebral pedicle hollow universal screw provided by the invention is used for treating the deficiency malformation of arcus posterior atlantis or the atlantoaxial dislocation in decompression caused due to arcus posterior atlantis cutting, and the atlantoaxial inside fixing and the fixing and fusing of grafting blocks among the atlantoaxials can be completed.
Description
Technical field
The present invention relates to medical device technology, particularly relate to the technology of the hollow Universal screw nail of a kind of atlas pedicle of vertebral arch.
Background technology
Atlas injury accounts for the 2-13% of cervical spine injury, accounts for 1.3% of all spinal injuries.Atlas connects occipital bone and cervical vertebra, is spinal cord vital center corresponding position, adjacent with the important feature such as vertebral artery, internal carotid artery, throat, esophagus, and its anatomical position is strategically located and difficult of access, therefore once atlantoaxial dislocation, directly can oppress oblongata, jeopardizes patient vitals.Therefore effective after atlantoaxial dislocation reset, fixing and merge most important.Reduction by traction+non-operative treatment such as head-neck-chest plaster fixing or Halo-vest support is only adapted to part can replica patient, and has the shortcoming that the set time is long, fusion rate is low.And operative treatment have indication scope wide, recover fast, fixation, advantage that fusion rate is high.Particularly for arch of posterior atlas agenesis or the atlantoaxial dislocation needing row arch of posterior atlas excision decompression, only having performs the operation fixes, bone-graft fusion just can reach effective healing.
Current conventional atlas modus operandi mainly contains following several: 1) way of escape Transarticular screw is fixed, this technology has the advantages that biomechanics is stablized, anti-rotation effect is strong, but anti-bend and stretch do poor, and it is excessive to enter to follow closely angle, oblique 45 ° ~ 55 ° need be gone up, patient for some obesities, short neck, barrel chest is difficult to implement, and cannot fixed structure plant bone mass; 2) front road is through body of axis lateral mass of atlas screw fixation, loosens in the front road of this technical feasibility, and fixation, but bone grafting limited area and cannot dosing mode; 3) anterior approach is fixed through oropharynx steel plate atlas and axis, and this technology can obtain similar stablizing effect to other method, but operative approach comparatively way of escape difficulty; 4) lateral mass of atlas, axis arch root screw rod are fixed, the entry point of this technology lateral mass of atlas screw locates at arch of posterior atlas lower edge and dividing a word with a hyphen at the end of a line of lateral mass of atlas trailing edge, insert along lateral mass of atlas sagittal axis, atlas and axis Lateral mass joint rear must be appeared, there are abundant venous plexus and greater occipital nerve in this position, easily causes massive hemorrhage and nerve injury; 5) Occipitocervical fussion internal fixation, this technology is certain to the effect of stability reconstruction, but after merging, cervical vertebrate active degree is lost larger.
In order to overcome the scarce limit of above-mentioned atlas modus operandi, occurred a kind of way of escape atlas and axis pedicle screw instrumentation, the atlas and axis pedicle screw adopted in this technology can run through three posts after in before atlas, and biomechanical stability is better; Short segment fixation, relative Occipitocervical fussion internal fixation retains the mobility of occipito-atlantoid articulations; Atlas and axis pedicle screw instrumentation entry point table is shallow, can avoid damaging venous plexus very large between neck 2 nerve root and neck 1-2 in art, thus can obviously reduce massive hemorrhage chance; But also pitman pressurization between atlas and axis pedicle screw can be utilized, complete that iliac between extensive region, dentata cantle is fixed, the object of dosing mode simultaneously, can fusion rate be improved, avoid steel wire or additive method to fix the risk of shakiness and damage oblongata.
But, arch of posterior atlas agenesis or the atlantoaxial dislocation needing the excision of row arch of posterior atlas to reduce pressure, because bone grafting bed surface between atlas and axis amasss the feature that limited, plant bone mass is difficult to fix, atlas and axis pedicle screw instrumentation often can not meet the bone grafting requirement of enough bone grafting amounts and effectively fixing plant bone mass.Atlanto-axial joint is that range of activity is large, and activity form is complicated, and can the late result of atlantoaxial dislocation treatment mainly depends on be maintained operative reduction, fixing achievement with bone-graft fusion, rebuilds the stability of cervical vertebra.As postoperative bone grafting quantity not sufficient, plant bone mass can not be stablized at once, situation affects operative effect will to cause that Unstable internal fixation, atlas and axis are dislocated again etc.
Summary of the invention
For the defect existed in above-mentioned prior art, technical problem to be solved by this invention is to provide the firm fixing plant bone mass of a kind of energy, improves the hollow Universal screw nail of atlas pedicle of vertebral arch of fusion rate of bone graft.
In order to solve the problems of the technologies described above, the hollow Universal screw nail of a kind of atlas pedicle of vertebral arch provided by the present invention, comprises rivet nut, it is characterized in that: the upper end of described rivet nut is equipped with a movable nail seat;
Described nail seat is a female body of tool, symmetrically in nail seat offers two upwards open and radial through U-shaped grooves, and the upper end of rivet nut is sunk in the tube chamber of nail seat, rivet nut offers an axially through guide hole.
Further, the outer wall bottom of described nail seat is fixed with multiple stator, and each stator is laid along the circumference symmetry of nail seat.
Further, the aperture of the guide hole of described rivet nut axis part is 1.0 ± 0.1mm.
The hollow Universal screw nail of atlas pedicle of vertebral arch provided by the invention, or row arch of posterior atlas can be needed to excise in the atlantoaxial dislocation of decompression at treatment arch of posterior atlas agenesis, not only atlas and axis internal fixtion can be completed but also the fixing fusion of plant bone mass between atlas and axis can be completed in an internal fixation system, and the design of hollow rivet nut can be avoided causing atlas pedicle of vertebral arch to put nail damage vertebral artery because plant bone mass stops, and fixing plant bone mass that can be firm under the mating reaction of stator, and atlas and axis inner fixing device can be utilized to pressurize, improve fusion rate of bone graft.
Accompanying drawing explanation
Fig. 1 is the front view of the hollow Universal screw nail of a kind of atlas pedicle of vertebral arch of the embodiment of the present invention;
Fig. 2 is the top view of the hollow Universal screw nail of a kind of atlas pedicle of vertebral arch of the embodiment of the present invention;
Fig. 3 is the upward view of the hollow Universal screw nail of a kind of atlas pedicle of vertebral arch of the embodiment of the present invention.
Detailed description of the invention
Illustrate below in conjunction with accompanying drawing and embodiments of the invention are described in further detail; but the present embodiment is not limited to the present invention; every employing analog structure of the present invention and similar change thereof, all should list protection scope of the present invention in, the pause mark in the present invention all represent and relation.
As shown in Figure 1-Figure 3, the hollow Universal screw nail of a kind of atlas pedicle of vertebral arch that the embodiment of the present invention provides, comprises rivet nut 2, it is characterized in that: the upper end of described rivet nut 2 is equipped with a movable nail seat 1;
Described nail seat 1 is a female body of tool, symmetrically in nail seat 1 offers two upwards open and radial through U-shaped grooves 11, and the upper end of rivet nut 2 is sunk in the tube chamber of nail seat 1, and the axis part of rivet nut 2 offers an axially through guide hole 21.
In the embodiment of the present invention, the outer wall bottom of described nail seat 1 is fixed with multiple stator 3, and each stator 3 is laid along the circumference symmetry of nail seat, and these stators can increase fixing plant bone mass area, effectively fix plant bone mass.
In the embodiment of the present invention, the screw thread of described rivet nut outer peripheral face accounts for 2/3 of rivet nut length, and the screw thread initial point of rivet nut outer peripheral face is positioned at rivet nut lower end, and the aperture of the guide hole of rivet nut axis part is 1.0 ± 0.1mm.
In the embodiment of the present invention, the angle that the relative rivet nut of described nail seat energy is rocked to nail seat central axis and rivet nut central axis is less than or equal to 20 degree.
The embodiment of the present invention is applicable to be used with axis arch root screw fit, is used for the treatment of arch of posterior atlas agenesis or needs row arch of posterior atlas to excise in the atlantoaxial dislocation of decompression, completes atlas and axis internal fixtion and can complete again the fixing fusion of plant bone mass between atlas and axis.
The embodiment of the present invention need with guide pin with the use of, by the guide hole of guide pin through rivet nut axis part during use, and make the lower end of guide pin through plant bone mass, then under the guiding of guide pin, rivet nut is screwed into plant bone mass, each stator of rivet nut and nail seat outer wall bottom is utilized jointly to fix plant bone mass, then in the U-shaped groove of nail seat, load pitman in order to connect the axis arch root screw of bilateral, and with nut locking, finally complete that atlas and axis is fixed, the fixing fusion of plant bone mass.
Claims (4)
1. the hollow Universal screw nail of atlas pedicle of vertebral arch, comprises rivet nut, it is characterized in that: the upper end of described rivet nut is equipped with a movable nail seat;
Described nail seat is a female body of tool, symmetrically in nail seat offers two upwards open and radial through U-shaped grooves, and the upper end of rivet nut is sunk in the tube chamber of nail seat, and the axis part of rivet nut offers an axially through guide hole.
2. the hollow Universal screw nail of a kind of atlas pedicle of vertebral arch according to claim 1, is characterized in that: the outer wall bottom of described nail seat is fixed with multiple stator, and each stator is laid along the circumference symmetry of nail seat.
3. the hollow Universal screw nail of a kind of atlas pedicle of vertebral arch according to claim 1, it is characterized in that: the screw thread of described rivet nut outer peripheral face accounts for 2/3 of rivet nut length, and the screw thread initial point of rivet nut outer peripheral face is positioned at rivet nut lower end.
4. the hollow Universal screw nail of a kind of atlas pedicle of vertebral arch according to claim 1, is characterized in that: the aperture of the guide hole of described rivet nut axis part is 1.0 ± 0.1mm.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201510921646.8A CN105361941A (en) | 2015-12-14 | 2015-12-14 | Atlas vertebral pedicle hollow universal screw |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201510921646.8A CN105361941A (en) | 2015-12-14 | 2015-12-14 | Atlas vertebral pedicle hollow universal screw |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN105361941A true CN105361941A (en) | 2016-03-02 |
Family
ID=55364922
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201510921646.8A Pending CN105361941A (en) | 2015-12-14 | 2015-12-14 | Atlas vertebral pedicle hollow universal screw |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN105361941A (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106236233A (en) * | 2016-09-21 | 2016-12-21 | 璧电兢 | Micro-wound percutaneous atlas posterior internal fixation system |
| CN111904574A (en) * | 2020-09-07 | 2020-11-10 | 郝定均 | Posterior atlantoaxial reposition fixing system |
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| CN2629660Y (en) * | 2003-07-31 | 2004-08-04 | 宋文超 | Expanding screw |
| CN101601601A (en) * | 2009-07-14 | 2009-12-16 | 常州市康辉医疗器械有限公司 | Dynamic spinal internal fixation system |
| CN201542728U (en) * | 2009-07-20 | 2010-08-11 | 中国人民解放军第二军医大学 | Posterior atlantoaxial non-fusion internal fixation device |
| CN201977917U (en) * | 2010-11-11 | 2011-09-21 | 周建明 | Non-fusion elastic rod internal fixing system |
| CN102551857A (en) * | 2012-02-07 | 2012-07-11 | 陈远明 | Universal vertebral pedicle screw system capable of moving slightly |
| CN203074847U (en) * | 2013-01-14 | 2013-07-24 | 常州市康辉医疗器械有限公司 | Novel universal pedicle screw |
| CN203693736U (en) * | 2013-12-27 | 2014-07-09 | 常州鼎健医疗器械有限公司 | Universal pedicle screw component |
| US20140214097A1 (en) * | 2013-01-28 | 2014-07-31 | Roger P. Jackson | Dual medical implant closure drive system |
| WO2014122210A1 (en) * | 2013-02-08 | 2014-08-14 | Silony Medical International AG | Osteosynthesis device |
| US20140358184A1 (en) * | 2008-10-15 | 2014-12-04 | Us Spine, Inc. | Interlocking biomedical implant fastener and washer concepts |
| US8998968B1 (en) * | 2012-11-28 | 2015-04-07 | Choice Spine, Lp | Facet screw system |
| CN104799931A (en) * | 2015-04-13 | 2015-07-29 | 李贵涛 | Glenoid rail chain type returning fixing and dynamic pedicle screw system |
| CN204671256U (en) * | 2015-04-08 | 2015-09-30 | 宁凡友 | A kind of condylus medialis humeri pressurization fixed claw |
| CN205411301U (en) * | 2015-12-14 | 2016-08-03 | 中国人民解放军第二军医大学 | Hollow universal screw of extensive region vertebra pedicle of vertebral arch |
-
2015
- 2015-12-14 CN CN201510921646.8A patent/CN105361941A/en active Pending
Patent Citations (14)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN2629660Y (en) * | 2003-07-31 | 2004-08-04 | 宋文超 | Expanding screw |
| US20140358184A1 (en) * | 2008-10-15 | 2014-12-04 | Us Spine, Inc. | Interlocking biomedical implant fastener and washer concepts |
| CN101601601A (en) * | 2009-07-14 | 2009-12-16 | 常州市康辉医疗器械有限公司 | Dynamic spinal internal fixation system |
| CN201542728U (en) * | 2009-07-20 | 2010-08-11 | 中国人民解放军第二军医大学 | Posterior atlantoaxial non-fusion internal fixation device |
| CN201977917U (en) * | 2010-11-11 | 2011-09-21 | 周建明 | Non-fusion elastic rod internal fixing system |
| CN102551857A (en) * | 2012-02-07 | 2012-07-11 | 陈远明 | Universal vertebral pedicle screw system capable of moving slightly |
| US8998968B1 (en) * | 2012-11-28 | 2015-04-07 | Choice Spine, Lp | Facet screw system |
| CN203074847U (en) * | 2013-01-14 | 2013-07-24 | 常州市康辉医疗器械有限公司 | Novel universal pedicle screw |
| US20140214097A1 (en) * | 2013-01-28 | 2014-07-31 | Roger P. Jackson | Dual medical implant closure drive system |
| WO2014122210A1 (en) * | 2013-02-08 | 2014-08-14 | Silony Medical International AG | Osteosynthesis device |
| CN203693736U (en) * | 2013-12-27 | 2014-07-09 | 常州鼎健医疗器械有限公司 | Universal pedicle screw component |
| CN204671256U (en) * | 2015-04-08 | 2015-09-30 | 宁凡友 | A kind of condylus medialis humeri pressurization fixed claw |
| CN104799931A (en) * | 2015-04-13 | 2015-07-29 | 李贵涛 | Glenoid rail chain type returning fixing and dynamic pedicle screw system |
| CN205411301U (en) * | 2015-12-14 | 2016-08-03 | 中国人民解放军第二军医大学 | Hollow universal screw of extensive region vertebra pedicle of vertebral arch |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106236233A (en) * | 2016-09-21 | 2016-12-21 | 璧电兢 | Micro-wound percutaneous atlas posterior internal fixation system |
| CN106236233B (en) * | 2016-09-21 | 2019-04-09 | 赵群 | Micro-wound percutaneous atlas posterior internal fixation system |
| CN111904574A (en) * | 2020-09-07 | 2020-11-10 | 郝定均 | Posterior atlantoaxial reposition fixing system |
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| PB01 | Publication | ||
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Application publication date: 20160302 |