CN104921794A - Lower cervical spine anterior pedicle screw matching fixing device - Google Patents
Lower cervical spine anterior pedicle screw matching fixing device Download PDFInfo
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- CN104921794A CN104921794A CN201510406942.4A CN201510406942A CN104921794A CN 104921794 A CN104921794 A CN 104921794A CN 201510406942 A CN201510406942 A CN 201510406942A CN 104921794 A CN104921794 A CN 104921794A
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- pedicle screw
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- cervical vertebra
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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
- A61B17/7059—Cortical plates
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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
- A61B17/7074—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
- A61B17/80—Cortical plates, i.e. bone plates; Instruments for holding or positioning cortical plates, or for compressing bones attached to cortical plates
- A61B17/8061—Cortical plates, i.e. bone plates; Instruments for holding or positioning cortical plates, or for compressing bones attached to cortical plates specially adapted for particular bones
-
- A—HUMAN NECESSITIES
- A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
- A61L—METHODS OR APPARATUS FOR STERILISING MATERIALS OR OBJECTS IN GENERAL; DISINFECTION, STERILISATION OR DEODORISATION OF AIR; CHEMICAL ASPECTS OF BANDAGES, DRESSINGS, ABSORBENT PADS OR SURGICAL ARTICLES; MATERIALS FOR BANDAGES, DRESSINGS, ABSORBENT PADS OR SURGICAL ARTICLES
- A61L31/00—Materials for other surgical articles, e.g. stents, stent-grafts, shunts, surgical drapes, guide wires, materials for adhesion prevention, occluding devices, surgical gloves, tissue fixation devices
- A61L31/02—Inorganic materials
-
- A—HUMAN NECESSITIES
- A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
- A61L—METHODS OR APPARATUS FOR STERILISING MATERIALS OR OBJECTS IN GENERAL; DISINFECTION, STERILISATION OR DEODORISATION OF AIR; CHEMICAL ASPECTS OF BANDAGES, DRESSINGS, ABSORBENT PADS OR SURGICAL ARTICLES; MATERIALS FOR BANDAGES, DRESSINGS, ABSORBENT PADS OR SURGICAL ARTICLES
- A61L31/00—Materials for other surgical articles, e.g. stents, stent-grafts, shunts, surgical drapes, guide wires, materials for adhesion prevention, occluding devices, surgical gloves, tissue fixation devices
- A61L31/04—Macromolecular materials
- A61L31/06—Macromolecular materials obtained otherwise than by reactions only involving carbon-to-carbon unsaturated bonds
-
- A—HUMAN NECESSITIES
- A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
- A61L—METHODS OR APPARATUS FOR STERILISING MATERIALS OR OBJECTS IN GENERAL; DISINFECTION, STERILISATION OR DEODORISATION OF AIR; CHEMICAL ASPECTS OF BANDAGES, DRESSINGS, ABSORBENT PADS OR SURGICAL ARTICLES; MATERIALS FOR BANDAGES, DRESSINGS, ABSORBENT PADS OR SURGICAL ARTICLES
- A61L31/00—Materials for other surgical articles, e.g. stents, stent-grafts, shunts, surgical drapes, guide wires, materials for adhesion prevention, occluding devices, surgical gloves, tissue fixation devices
- A61L31/14—Materials characterised by their function or physical properties, e.g. injectable or lubricating compositions, shape-memory materials, surface modified materials
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- Health & Medical Sciences (AREA)
- Orthopedic Medicine & Surgery (AREA)
- Surgery (AREA)
- Life Sciences & Earth Sciences (AREA)
- Heart & Thoracic Surgery (AREA)
- Neurology (AREA)
- Animal Behavior & Ethology (AREA)
- General Health & Medical Sciences (AREA)
- Public Health (AREA)
- Veterinary Medicine (AREA)
- Nuclear Medicine, Radiotherapy & Molecular Imaging (AREA)
- Epidemiology (AREA)
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- Engineering & Computer Science (AREA)
- Biomedical Technology (AREA)
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- Molecular Biology (AREA)
- Chemical & Material Sciences (AREA)
- Chemical Kinetics & Catalysis (AREA)
- Inorganic Chemistry (AREA)
- Surgical Instruments (AREA)
Abstract
The invention discloses a lower cervical spine anterior pedicle screw matching fixing device which comprises a fixing plate and pedicle screws which are matched. At least two fixing holes matched with the pedicle screws are formed in the fixing plate. The cross section and the longitudinal section of the fixing plate are of an arc structure. The axis of each pedicle screw and the cross section of the fixing plate form a heeling angle of 15-30 degrees. The axis of each pedicle screw and the longitudinal section of the fixing plate form a trimming angle of 0-15 degrees. The pedicle screws are provided with fixing gaskets which are matched respectively. The fixing plate, the pedicle screws and the fixing gaskets are made of biodegradable materials. The implanting operation space of the pedicle screws is increased, and fixing of the fixing plate can be well achieved. When the pedicle screws are implanted completely, the heads of the pedicle screws are placed in the fixing holes. The lower cervical spine anterior pedicle screw matching fixing device is simple in structure and convenient to machine, the cross section and the longitudinal section of the fixing plate are of the arc structure, and accordingly fixing of the fixing plate and a spine body is firm.
Description
Technical field
The present invention relates to cervical vertebrae fixer technical field, especially the supporting fixture of a kind of lower cervical vertebra anterior vertebral pedicle screw.
Background technology
Domestic and international employing anterior cervical vertebrae is restricted or half constrained plate is very common in conjunction with the report that vertebral body mono cortex screw is fixing.But for this technology of lower cervical vertebra anterior vertebral pedicle screw, be just in starting sections abroad at present, only had fragmentary case clinical report, fresh systematic anatomical research, iconography research and biomechanics Research report.Domestic, be still in the blank stage, so far, domesticly there is not yet basic research about lower cervical vertebra anterior vertebral pedicle screw and clinical relevant report, more irrelevant in the supporting fixing anti-drop device design of lower cervical vertebra anterior vertebral pedicle screw and the report that uses.
The advantage of lower cervical vertebra anterior vertebral pedicle screw is mainly the biomechanics fixed performance that front road is good, and screw can go directly from the leading edge of cervical vertebral body and pass cortex on rear side of the lateral mass of rear, has good resisting pull out forces.We estimate that front road pedicle of vertebral arch is used and have a extensive future, and the foreseeable future, every basic research of technique, comprising anatomy, iconography and biomechanics Research will be in full swing.In addition, also will be fully under way in the clinical research of this technology, comprise the practical operation method of this technology, use improvement, screw steel plate design, patient with operation to follow up a case by regular visits to situation etc.
The field of spinal surgery that is used in of anterior plate fixation is widely accepted, the mono cortex screw of the many employings of hold-down screw, and the intensity fixing for single segmental patient with operation is better.But for senile osteoporosis patient, the post-decompression patient of cervical vertebra multi-segmental, use mono cortex vertebral body hold-down screw intensity often poor, easily cause the loosening failure of internal fixtion, clinically so far without relatively stable firm fixing means.For senile fracture-dislocation of cervical spine patient, row anterior-posterior is often needed to perform the operation in principle, effectively reduce pressure and to fix in conjunction with the pedicle screw of the way of escape in front road, but most gerontal patient due to whole body internal organs compensation poor, the wound being difficult to bear anterior-posterior is hit.This kind of patient that appears as of front road pedicle screw instrumentation brings Gospel, and simple anterior approach both can solve the problem thoroughly that reduces pressure, and can solve again the problem of stability maintenance.Along with clinical principium practice principle, we find that to enter to follow closely angle larger due to lower cervical vertebra anterior vertebral pedicle screw, existing cervical steel plate can not adapt to the implantation of front road pedicle screw and support the use, and it also progressively promotes the use in clinical practice necessary by the supporting fixing anti-drop device of a lower cervical vertebra anterior vertebral pedicle screw of research design.The design of the supporting fixing anti-drop device of lower cervical vertebra anterior vertebral pedicle screw and produce the further investigation that will promote front road this technology of pedicle screw, be conducive to this technology as early as possible Successful utilization in clinical, for extensive patients is benefited.
In addition, the supporting fixture of existing lower cervical anterior screw many employings alloy material is made, and cannot, by human body degraded and absorbed, therefore need second operation to be taken out after a period of time; This brings no small damage not only can to the body and mind of patient, but also can cause extra economy expenditure, therefore needs to be further improved the supporting fixture of existing lower cervical anterior screw.
Summary of the invention
Technical problem to be solved by this invention is the present situation for prior art, provides structure simple, easy to process, fixation, the supporting fixture of reliable a kind of lower cervical vertebra anterior vertebral pedicle screw.
The present invention solves the problems of the technologies described above adopted technical scheme:
The supporting fixture of a kind of lower cervical vertebra anterior vertebral pedicle screw, comprise the fixing head and pedicle screw that match, wherein, fixing head is provided with at least two fixing holes suitable with described pedicle screw, the all curved structure in the cross section of fixing head and longitudinal section, the axis of pedicle screw and the cross section of described fixing head are the Angle of Heel of 15 ° to 30 °, the axis of pedicle screw and the longitudinal section of described fixing head are the Angle of Trim of 0 ° to 15 °, and pedicle screw is respectively arranged with suitable retaining washer; Fixing head, pedicle screw and retaining washer all adopt biodegradation material to make; Increase the working place of the implantation of pedicle screw, be beneficial to the fixing of fixing head; When described pedicle screw is implanted completely, the head of described pedicle screw is positioned at described fixing hole.
For optimizing technique scheme, the concrete measure taked also comprises:
The number of above-mentioned fixing hole is four, is divided into two groups, often organizes two; Two groups of fixing holes take transversal line as axis of symmetry symmetry difference, and two fixing holes in same group are that axis of symmetry is symmetrical with longitudinal axis.
Above-mentioned fixing head is provided with at least one accommodating hole for accommodating perspective developing body.
The number of above-mentioned accommodating hole is four, is divided into two groups, often organizes two; Two groups of accommodating holes are symmetrical arranged.
Above-mentioned biodegradation material is the mixture of polylactic acid and hydroxyapatite, and the mass ratio of polylactic acid and hydroxyapatite is 7:3.
Above-mentioned retaining washer is arranged a breach and in C character form structure, the inner circumferential of retaining washer is provided with locking female thread.
The center of above-mentioned fixing head is provided with hole for subsequent use.
The tip of above-mentioned pedicle screw is provided with Zi Gong groove.
The head periphery of above-mentioned pedicle screw is shaped with fixing external screw thread, and the inner circumferential of fixing hole is shaped with the fixing female thread suitable with described fixing external screw thread.
Compared with prior art, the supporting fixture of a kind of lower cervical vertebra anterior vertebral pedicle screw of the present invention, comprise the fixing head and pedicle screw that match, wherein, the all curved structure in the cross section of fixing head and longitudinal section, design like this meets skeletal structure more, fixing head and vertebral body can be made fixedly to make more firm; The axis of pedicle screw and the cross section of described fixing head are the Angle of Heel of 15 ° to 30 °, the axis of pedicle screw and the longitudinal section of described fixing head are the Angle of Trim of 0 ° to 15 °, this makes the implantation of pedicle screw convenient, adds working place, is also more conducive to the fixing of fixing head.In addition, fixing head of the present invention, pedicle screw and retaining washer all adopt biodegradation material to make, and take out without the need to second operation, decrease the body and mind injury to patient and economic expenditure; Increase the working place of the implantation of pedicle screw, be beneficial to the fixing of fixing head; When pedicle screw is implanted completely, the head of described pedicle screw is positioned at fixing hole.
Fixing head is provided with the accommodating hole for accommodating perspective developing body, after inserting perspective developing body, can facilitate fluoroscopic examination in accommodating hole.
The head periphery of pedicle screw is shaped with fixing external screw thread, and the inner circumferential of fixing hole is shaped with the fixing female thread suitable with described fixing external screw thread.When pedicle screw is implanted completely, the head of pedicle screw is positioned at described fixing hole, and the fixing female thread bolt of the fixing external screw thread of its head and fixing hole inner circumferential, make the implantation of pedicle screw more stable, reliable.
Accompanying drawing explanation
Fig. 1 is structural representation of the present invention;
Fig. 2 is the left view of Fig. 1;
Fig. 3 is the right view of Fig. 1;
Fig. 4 is the top view of Fig. 1;
Fig. 5 is the structural representation of fixing head in Fig. 1;
Fig. 6 is the structural representation of pedicle screw in Fig. 1;
Fig. 7 is the structural representation of retaining washer in Fig. 1.
Detailed description of the invention
Below in conjunction with accompanying drawing embodiment, the present invention is described in further detail.
Embodiment as shown in Figures 1 to 7,
Figure grade illustrates: fixing head 1, fixing hole 11, fixing female thread 11a, hole for subsequent use 12, accommodating hole 13, pedicle screw 2, fixing external screw thread 2a, self tapping groove 21, retaining washer 3, breach 3a, locking female thread 3b.
As shown in Figures 1 to 7,
1, the supporting fixture of a kind of lower cervical vertebra anterior vertebral pedicle screw of the present invention, comprise the fixing head 1 and pedicle screw 2 that match, wherein, fixing head 1 is provided with at least two fixing holes 11 suitable with described pedicle screw 2, the all curved structure in the cross section of fixing head 1 and longitudinal section, the axis of pedicle screw 2 and the cross section of described fixing head 1 are the Angle of Heel of 15 ° to 30 °, the axis of pedicle screw 2 and the longitudinal section of described fixing head 1 are the Angle of Trim of 0 ° to 15 °, and pedicle screw 2 is respectively arranged with suitable retaining washer 3; Fixing head 1, pedicle screw 2 and retaining washer 3 all adopt biodegradation material to make.Increase the working place of the implantation of pedicle screw, be beneficial to the fixing of fixing head; When pedicle screw 2 is implanted completely, the head of pedicle screw 2 is positioned at fixing hole 11.
The all curved structure of the cross section of the fixing head 1 of this fixture and longitudinal section, meets the construction features of skeleton more, when fixing, itself and vertebral body can be made to fit better, thus more firm regularly.
In embodiment, the number of fixing hole 11 is four, is divided into two groups, often organizes two; Two groups of fixing holes 11 take transversal line as axis of symmetry symmetry difference, and two fixing holes 11 in same group are that axis of symmetry is symmetrical with longitudinal axis.
Pedicle screw 2 is placed in corresponding fixing hole 11, and the pedicle screw 2, be placed in same group of fixing hole 11 tilts to the inside, and another tilts laterally; Two pedicle screws 2 in same group of fixing hole 11 tilt to different directions, increase the lifting surface area after pedicle screw 2 implantation, make the fixing more firm, reliable of fixing head 1.
In embodiment, fixing head 1 is provided with at least one accommodating hole 13 for accommodating perspective developing body.
In embodiment, the number of accommodating hole 13 is four, is divided into two groups, often organizes two; Two groups of accommodating holes 13 are symmetrical arranged.
Because biodegradation material does not develop in fluoroscopic examination, accommodating hole 13 is set, and in accommodating hole 13, inserts tantalum mark labelling or other perspective developing body, to facilitate fluoroscopic examination.
In embodiment, biodegradation material is the mixture of polylactic acid and hydroxyapatite, and the mass ratio of polylactic acid and hydroxyapatite is 7:3.
Adopt biodegradation material fixing head 1, pedicle screw 2 and the retaining washer 3 made, can natural degradation in vivo, therefore take out without the need to second operation, decrease and the body and mind of patient is injured, decrease the financial burden of patient.
In embodiment, retaining washer 3 is arranged a breach 3a and in C character form structure, the inner circumferential of retaining washer 3 is provided with locking female thread 3b.
Breach 3a is set at retaining washer 3, makes retaining washer 3 that certain deformation can occur, thus retaining washer 3 can be coordinated better with pedicle screw 2.
In embodiment, the center of fixing head 1 is provided with hole 12 for subsequent use.
In embodiment, the tip of pedicle screw 2 is provided with self tapping groove 21.It is more laborsaving when self tapping groove 21 can make pedicle screw 2 implant, convenient to arrange, and improves and implants efficiency.
In embodiment, the head periphery of pedicle screw 2 is shaped with fixing external screw thread 2a, and the inner circumferential of fixing hole 11 is shaped with the fixing female thread 11a suitable with described fixing external screw thread 2a.
In embodiment, when pedicle screw 2 is implanted completely, the head of pedicle screw 2 is positioned at described fixing hole 11.
When pedicle screw 2 is implanted in fixing hole 11 completely, the head of pedicle screw 2 is positioned at described fixing hole 11, can ensure the smooth surface of fixture like this; After pedicle screw 2 is implanted, the fixing external screw thread 2a of pedicle screw 2 head and the fixing female thread 11a bolt of fixing hole 11 inner circumferential, make pedicle screw 2 more firm, stable.
Most preferred embodiment of the present invention is illustrated, and the various change made by those of ordinary skill in the art or remodeling all can not depart from the scope of the present invention.
Claims (9)
1. the supporting fixture of lower cervical vertebra anterior vertebral pedicle screw, comprise the fixing head (1) and pedicle screw (2) that match, it is characterized in that: described fixing head (1) is provided with at least two fixing holes (11) suitable with described pedicle screw (2), the all curved structure of cross section and longitudinal section of described fixing head (1), the axis of described pedicle screw (2) and the cross section of described fixing head (1) are the Angle of Heel of 15 ° to 30 °, the axis of described pedicle screw (2) and the longitudinal section of described fixing head (1) are the Angle of Trim of 0 ° to 15 °, described pedicle screw (2) is respectively arranged with suitable retaining washer (3), described fixing head (1), pedicle screw (2) and retaining washer (3) all adopt biodegradation material to make, increase the working place of the implantation of pedicle screw, be beneficial to the fixing of fixing head, when described pedicle screw (2) is implanted completely, the head of described pedicle screw (2) is positioned at described fixing hole (11).
2. the supporting fixture of a kind of lower cervical vertebra anterior vertebral pedicle screw according to claim 1, is characterized in that: the number of described fixing hole (11) is four, is divided into two groups, often organizes two; Two groups of fixing holes (11) take transversal line as axis of symmetry symmetry difference, and two fixing holes (11) in same group are that axis of symmetry is symmetrical with longitudinal axis.
3. the supporting fixture of a kind of lower cervical vertebra anterior vertebral pedicle screw according to claim 2, is characterized in that: described fixing head (1) is provided with at least one accommodating hole (13) for accommodating perspective developing body.
4. the supporting fixture of a kind of lower cervical vertebra anterior vertebral pedicle screw according to claim 3, is characterized in that: the number of described accommodating hole (13) is four, is divided into two groups, often organizes two; Two groups of accommodating holes (13) are symmetrical arranged.
5. the supporting fixture of a kind of lower cervical vertebra anterior vertebral pedicle screw according to claim 4, it is characterized in that: described biodegradation material is the mixture of polylactic acid and hydroxyapatite, described polylactic acid and the mass ratio of hydroxyapatite are 7:3.
6. the supporting fixture of a kind of lower cervical vertebra anterior vertebral pedicle screw according to claim 5, it is characterized in that: described retaining washer (3) is arranged a breach (3a) and in C character form structure, the inner circumferential of described retaining washer (3) is provided with locking female thread (3b).
7. the supporting fixture of a kind of lower cervical vertebra anterior vertebral pedicle screw according to claim 6, is characterized in that: the center of described fixing head (1) is provided with hole for subsequent use (12).
8. the supporting fixture of a kind of lower cervical vertebra anterior vertebral pedicle screw according to claim 7, is characterized in that: the tip of described pedicle screw (2) is provided with self tapping groove (21).
9. the supporting fixture of a kind of lower cervical vertebra anterior vertebral pedicle screw according to claim 8, it is characterized in that: the head periphery of described pedicle screw (2) is shaped with fixing external screw thread (2a), the inner circumferential of described fixing hole (11) is shaped with the fixing female thread (11a) suitable with described fixing external screw thread (2a).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201510406942.4A CN104921794A (en) | 2015-07-13 | 2015-07-13 | Lower cervical spine anterior pedicle screw matching fixing device |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201510406942.4A CN104921794A (en) | 2015-07-13 | 2015-07-13 | Lower cervical spine anterior pedicle screw matching fixing device |
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| Publication Number | Publication Date |
|---|---|
| CN104921794A true CN104921794A (en) | 2015-09-23 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201510406942.4A Pending CN104921794A (en) | 2015-07-13 | 2015-07-13 | Lower cervical spine anterior pedicle screw matching fixing device |
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| CN (1) | CN104921794A (en) |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105147376A (en) * | 2015-10-13 | 2015-12-16 | 广州聚生生物科技有限公司 | Cervical vertebra 2-3 anterior reduction steel plate system |
| CN106955147A (en) * | 2016-01-11 | 2017-07-18 | 董震 | A kind of orthopaedics lock screw |
| CN109646103A (en) * | 2019-01-22 | 2019-04-19 | 李涛 | A kind of upper cervical spine inner fixing device of preceding road implantation |
Citations (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN200980723Y (en) * | 2006-12-01 | 2007-11-28 | 深圳清华大学研究院 | Anti-backing type universal precession inner fixator in front of cervical vertebra |
| CN201710445U (en) * | 2010-01-20 | 2011-01-19 | 南方医科大学 | Improved anterior cervical plate fixing device |
| CN201719362U (en) * | 2010-07-14 | 2011-01-26 | 袁峰 | Anterior cervical spine reverse pedicle screw plate fixing device |
| CN201831953U (en) * | 2010-10-27 | 2011-05-18 | 天津正天医疗器械有限公司 | Locking structure for preventing rotation of screw |
| CN102362815A (en) * | 2011-11-12 | 2012-02-29 | 赵刘军 | Lower cervical spine anterior pedicle screw matching, fixing and retaining device |
| CN104758040A (en) * | 2015-04-30 | 2015-07-08 | 山东威高骨科材料股份有限公司 | Steel plate for anterior cervial internal fixation and guiding device |
-
2015
- 2015-07-13 CN CN201510406942.4A patent/CN104921794A/en active Pending
Patent Citations (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN200980723Y (en) * | 2006-12-01 | 2007-11-28 | 深圳清华大学研究院 | Anti-backing type universal precession inner fixator in front of cervical vertebra |
| CN201710445U (en) * | 2010-01-20 | 2011-01-19 | 南方医科大学 | Improved anterior cervical plate fixing device |
| CN201719362U (en) * | 2010-07-14 | 2011-01-26 | 袁峰 | Anterior cervical spine reverse pedicle screw plate fixing device |
| CN201831953U (en) * | 2010-10-27 | 2011-05-18 | 天津正天医疗器械有限公司 | Locking structure for preventing rotation of screw |
| CN102362815A (en) * | 2011-11-12 | 2012-02-29 | 赵刘军 | Lower cervical spine anterior pedicle screw matching, fixing and retaining device |
| CN104758040A (en) * | 2015-04-30 | 2015-07-08 | 山东威高骨科材料股份有限公司 | Steel plate for anterior cervial internal fixation and guiding device |
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105147376A (en) * | 2015-10-13 | 2015-12-16 | 广州聚生生物科技有限公司 | Cervical vertebra 2-3 anterior reduction steel plate system |
| CN106955147A (en) * | 2016-01-11 | 2017-07-18 | 董震 | A kind of orthopaedics lock screw |
| CN109646103A (en) * | 2019-01-22 | 2019-04-19 | 李涛 | A kind of upper cervical spine inner fixing device of preceding road implantation |
| CN109646103B (en) * | 2019-01-22 | 2021-10-29 | 李涛 | Upper cervical vertebra internal fixation device implanted in anterior approach |
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Application publication date: 20150923 |