CN105640638A - Pedicle screw structure - Google Patents
Pedicle screw structure Download PDFInfo
- Publication number
- CN105640638A CN105640638A CN201410638943.7A CN201410638943A CN105640638A CN 105640638 A CN105640638 A CN 105640638A CN 201410638943 A CN201410638943 A CN 201410638943A CN 105640638 A CN105640638 A CN 105640638A
- Authority
- CN
- China
- Prior art keywords
- screw
- tooth portion
- pedicle
- lining
- thread portion
- 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
Abstract
The invention provides a pedicle screw structure which effectively prevents a bone plate screw from interfering surrounding bone tissues when fixing a sliding bar, and improves low holding force of the screw and improves fixing effect of the screw. The structure comprises a pedicle screw body. The pedicle screw body comprises a screw head and a screw thread portion. The structure is characterized in that the screw thread portion comprises a coarse thread portion and a fin thread portion. The pedicle screw body is provided with the screw thread, the fin thread portion, and the coarse thread portion in sequence.
Description
Technical field
The present invention relates to the technical field of clinical medicine instruments decided at the higher level but not officially announced, it is specifically related to a kind of vertebral pedicle bolt structure.
Background technology
Hone lamella is the bone being used for fixing in human body in clinical medicine, to maintain a kind of apparatus of bone contraposition, hone lamella need to be designed to different shapes according to the difference of skeleton anatomical structure, and hone lamella also needs to adopt screw to be fixed on the bone of the person by hone lamella, for the patient of osteoporosis, due to the singularity of sclerotin, the osseous tissue of surrounding is easily caused interference when fixing sliding rod by existing hone lamella screw, it is low that screw holds power, and fixed effect is poor.
Summary of the invention
For the problems referred to above, the present invention provides a kind of vertebral pedicle bolt structure, it is possible to effectively prevent hone lamella screw from when fixing sliding rod, the osseous tissue of surrounding is caused interference, it is to increase screw holds the low fixed effect with screw of power.
Its technical scheme is such: a kind of vertebral pedicle bolt structure, it comprises pedicle screw body, described pedicle screw body comprises screw head and screw thread portion, it is characterized in that: described screw thread portion comprises thick tooth portion and thin tooth portion, described pedicle screw body is followed successively by screw head, thin tooth portion and thick tooth portion.
It is characterised in that further: described thick tooth portion pitch is the twice of thin tooth portion pitch; Described screw head arranges U shape groove, is provided with lining in described groove, and described lining is threaded with described screw head, and screw thread cutting edge and the axial vertical line of lining are 3-8 degree angle; Described screw thread cutting edge and the axial vertical line of lining are 5 degree of angles.
In the said structure of the present invention, thick tooth portion and thin tooth portion is comprised due to screw thread portion, pedicle screw body is followed successively by screw head, thin tooth portion and thick tooth portion, when pedicle screw screws in fixing sliding rod in bone body, thick tooth portion prevents screw from the osseous tissue of surrounding is caused interference, thin tooth portion improves screw and holds the low fixed effect with screw of power, while ensureing screw stable position, prevents screw to the damage of osseous tissue.
Accompanying drawing explanation
Fig. 1 is vertebral pedicle bolt structure sectional view of the present invention;
Fig. 2 is thin dental structure schematic diagram;
Fig. 3 is thick dental structure schematic diagram;
Fig. 4 is screw head structure cross-sectional schematic;
Fig. 5 is lining tooth line structural representation.
Embodiment
See Fig. 1, Fig. 2, Fig. 3, a kind of vertebral pedicle bolt structure, it comprises pedicle screw body 1, pedicle screw body 1 comprises screw head 2 and screw thread portion 3, screw thread portion 3 comprises thick tooth portion 3-1 and thin tooth portion 3-2, and pedicle screw body 1 is followed successively by screw head 2, thin tooth portion 3-2 and thick tooth portion 3-1.
Preferably, thick tooth portion 3-1 pitch is the twice of thin tooth portion 3-2 pitch, ensure that screw overall processing.
See Fig. 4, Fig. 5, screw head 2 arranges U shape groove 4, lining 5 it is provided with in groove 4, lining 5 is threaded with screw head 2, screw thread cutting edge 6 is 3-8 degree angle with the axial vertical line of lining, adopts the design of dihedral screw thread, by minimum for may dropping to of quick-fried wall, increase the holding power to rod, significantly reduce sliding rod probability.
Preferably, screw thread cutting edge and the axial vertical line of lining are 5 degree of angles.
Claims (5)
1. a vertebral pedicle bolt structure, it comprises pedicle screw body, described pedicle screw body comprises screw head and screw thread portion, it is characterized in that: described screw thread portion comprises thick tooth portion and thin tooth portion, described pedicle screw body is followed successively by screw head, thin tooth portion and thick tooth portion.
2. a kind of vertebral pedicle bolt structure according to claim 1, it is characterised in that: described thick tooth portion pitch is the twice of thin tooth portion pitch.
3. a kind of vertebral pedicle bolt structure according to claims 1 or 2, it is characterised in that: described screw head arranges U shape groove, is provided with lining in described groove, and described lining is threaded with described screw head.
4. a kind of vertebral pedicle bolt structure according to claim 3, it is characterised in that: screw thread cutting edge and the axial vertical line of lining are 3-8 degree angle.
5. a kind of vertebral pedicle bolt structure according to claim 4, it is characterised in that: described screw thread cutting edge and the axial vertical line of lining are 5 degree of angles.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201410638943.7A CN105640638A (en) | 2014-11-13 | 2014-11-13 | Pedicle screw structure |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201410638943.7A CN105640638A (en) | 2014-11-13 | 2014-11-13 | Pedicle screw structure |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN105640638A true CN105640638A (en) | 2016-06-08 |
Family
ID=56479347
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201410638943.7A Pending CN105640638A (en) | 2014-11-13 | 2014-11-13 | Pedicle screw structure |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN105640638A (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109620382A (en) * | 2019-01-18 | 2019-04-16 | 贝尔泰克医疗器械江苏有限公司 | A kind of pedicle screw |
| CN109899365A (en) * | 2019-03-13 | 2019-06-18 | 博瑞康有限公司 | Bolt |
Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN201197743Y (en) * | 2008-05-30 | 2009-02-25 | 王桂芝 | Anti-loose bone nail |
| CN201879816U (en) * | 2010-11-18 | 2011-06-29 | 刘忠军 | High-holding-force bone screw |
| CN202027700U (en) * | 2011-01-19 | 2011-11-09 | 陈允震 | Density composite thread pedicle screw |
| CN203898418U (en) * | 2014-03-18 | 2014-10-29 | 闻泰医疗科技（上海）有限公司 | Pedicle screw with composite thread |
| CN204260824U (en) * | 2014-11-13 | 2015-04-15 | 无锡市闻泰百得医疗器械有限公司 | Vertebral pedicle bolt structure |
-
2014
- 2014-11-13 CN CN201410638943.7A patent/CN105640638A/en active Pending
Patent Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN201197743Y (en) * | 2008-05-30 | 2009-02-25 | 王桂芝 | Anti-loose bone nail |
| CN201879816U (en) * | 2010-11-18 | 2011-06-29 | 刘忠军 | High-holding-force bone screw |
| CN202027700U (en) * | 2011-01-19 | 2011-11-09 | 陈允震 | Density composite thread pedicle screw |
| CN203898418U (en) * | 2014-03-18 | 2014-10-29 | 闻泰医疗科技（上海）有限公司 | Pedicle screw with composite thread |
| CN204260824U (en) * | 2014-11-13 | 2015-04-15 | 无锡市闻泰百得医疗器械有限公司 | Vertebral pedicle bolt structure |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109620382A (en) * | 2019-01-18 | 2019-04-16 | 贝尔泰克医疗器械江苏有限公司 | A kind of pedicle screw |
| CN109899365A (en) * | 2019-03-13 | 2019-06-18 | 博瑞康有限公司 | Bolt |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| WO2016025020A3 (en) | Minimally disruptive retractor and associated methods for spinal surgery | |
| TW201129338A (en) | Implant for stabilizing bones or vertebrae | |
| WO2013112689A3 (en) | Minimally invasive devices and methods for delivering fixation devices and implants into a spine | |
| WO2007146032A3 (en) | Pedicle screw system | |
| EP2774560A3 (en) | Mini-rail external fixator | |
| EP3120797A3 (en) | Method for identifying the optimal direction and maximum diameter of a pedicle screw | |
| CN105640638A (en) | Pedicle screw structure | |
| EP3158958A3 (en) | Biased angle screws | |
| CN203898418U (en) | Pedicle screw with composite thread | |
| CN204260824U (en) | Vertebral pedicle bolt structure | |
| CN203841777U (en) | Customized absorbable bone setting device | |
| CN105213013B (en) | Multi-shaft locking bone plate | |
| WO2018167435A3 (en) | Endosteal guide pin, positioning trocar and trocar for removing said pin | |
| CN203591320U (en) | Tail-breaking device | |
| WO2012048689A3 (en) | Bone-anchoring system | |
| RU2009136963A (en) | METHOD FOR RESTORING POSITION OF A DISPLACED VERBE IN SURGICAL TREATMENT OF SPONDYLOSIS | |
| CN204260822U (en) | Hollow compression pin structure | |
| CN204147120U (en) | A kind of fluoroscopy during operation localizer | |
| CN205391173U (en) | Go up thoracic vertebrae pedicle of vertebral arch screw internal fixation device | |
| JP2017515533A (en) | Extended auxiliary machine cutting head | |
| CN205054409U (en) | Firm support type coaptation board | |
| CN204260821U (en) | Bone plate screw structure | |
| CN203693688U (en) | Reverse angle curette for eggshell technology in orthopedic operation | |
| EP3278751A3 (en) | Spinal fixation assembly | |
| CN105640639A (en) | Cannulated compression screw structure |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C06 | Publication | ||
| PB01 | Publication | ||
| C10 | Entry into substantive examination | ||
| SE01 | Entry into force of request for substantive examination | ||
| RJ01 | Rejection of invention patent application after publication |
Application publication date: 20160608 |
|
| RJ01 | Rejection of invention patent application after publication |