CN103919603A - Long-tail U-type vertebral pedicle locking device - Google Patents
Long-tail U-type vertebral pedicle locking device Download PDFInfo
- Publication number
- CN103919603A CN103919603A CN201410155222.0A CN201410155222A CN103919603A CN 103919603 A CN103919603 A CN 103919603A CN 201410155222 A CN201410155222 A CN 201410155222A CN 103919603 A CN103919603 A CN 103919603A
- Authority
- CN
- China
- Prior art keywords
- tail
- long
- locking device
- shaped
- same
- 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
- A61B17/70—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
- A61B17/7032—Screws or hooks with U-shaped head or back through which longitudinal rods pass
Abstract
The invention discloses a long-tail U-type vertebral pedicle locking device. The long-tail U-type vertebral pedicle locking device is characterized in that connecting rod holes are formed in the two sides of the outer wall of each section of a U-type groove respectively, inner threads same as threads of a nut are arranged on the inner wall of the U-type groove, spiral breaking grooves same as the inner threads in direction and axis are formed in the two sides of the outer wall of the U-type groove respectively, the U-type groove is divided by the spiral breaking grooves, and starting points and stopping points, located on the same section of the U-type groove, of the spiral breaking grooves are same in height. According to the long-tail U-type vertebral pedicle locking device, the spiral breaking grooves are same as the inner threads in direction and coaxial with the inner threads, the broken surface of the stress concentration position, namely the broken position, during breaking is even and coincident in thickness, it can be guaranteed that the broken surface is neat without foreign matter such as thread trimmings after breaking operation, the safety of the locking result is improved, the positions of the starting points and the stopping points of the two breaking grooves are same in height, height changes of the two sections of the U-type groove are not obvious, the sensation that a cutting mark is obviously added can be avoided, and the long-tail U-type vertebral pedicle locking device has the advantages of being easy to operate, safe in use, reliable in connection, good in treatment effect and the like.
Description
Technical field
The present invention relates to spinal injury or lopsided technology, specifically a kind of for internal fixation of spine be U-shaped, with lock nut be the U-shaped pedicle of vertebral arch locking device of band long-tail of thread lock mode.
Background technology
As everyone knows, at spinal operation, implants being placed into reason in vertebra has manyly, comprising: (a) correct the gryposis of spinal column; (b) maintain suitable vertebra gap, and provide support for fracture or the vertebra of other damage; (c) in spinal column, carry out other treatment.Typical spinal internal fixation system uses pedicle screw, bar, nut as supporting and retaining element.In such system, a series of two or more bone securing member is implanted in two or more vertebras by corresponding devices work operation, then bar or other fixture are placed in the head of bone securing member, or be attached to the head of bone securing member, or be placed in the connector that connects described bar and described bone fastener head.Then the connection being fixed up between these multiple parts, needs specific retaining element redundance to remove, thereby fix support member with multiple degree in spinal column after fixedly completing.Current, the U-shaped pedicle screw of long-tail in the U-shaped pedicle of vertebral arch locking device of long-tail, the long-tail of the U-shaped pedicle of vertebral arch Universal screw nail of long-tail and the U-shaped pedicle of vertebral arch hook of long-tail etc. fractures to design to be along U-shaped arm outside increases by a horizontal snap slot, because having screw thread, endoporus distributes, this will certainly cause the nail arm variable thickness of snap slot position to cause, and snap slot has been determined stress concentration point when long-tail nail arm fractures conventionally, effort not only fractures, also can make to fracture time, section inequality causes screw thread overlap, screw thread overlap has increased the postoperative stimulation to patient, also having some designs is to the U-shaped pedicle screw of short-tail by instrument, the U-shaped pedicle of vertebral arch Universal screw nail of long-tail and the U-shaped pedicle of vertebral arch hook of long-tail etc. operate, to realize the function of the U-shaped pedicle of vertebral arch of long-tail, its deficiency is inconvenient operation, therapeutic effect is poor.
Summary of the invention
The object of the invention is to overcome the deficiencies in the prior art, provide a kind of simple to operate, use safety, by retaining element, bone securing member and Connection Element solid and reliable linking together in spinal column, long-tail U groove section and incisura answer minimum degree ground Give brought by user to stimulate and the U-shaped pedicle of vertebral arch locking device of long-tail of foreign body sensation.
The present invention can be achieved by the following scheme.
The U-shaped pedicle of vertebral arch locking device of a kind of long-tail, comprise the ailhead being formed by nut and the U-shaped groove of at least two joints, nut is connected as a single entity with the U-shaped groove of first joint, it is characterized in that the U-shaped groove outer wall of every joint both sides are respectively equipped with pitman hole, U-shaped groove inwall is provided with the female thread identical with nut, U-shaped groove outer wall both sides are respectively equipped with spiral snap slot equidirectional with female thread, coaxial line, and spiral snap slot is by U-shaped groove merogenesis, identical with terminal height with the starting point of joint both sides spiral snap slot.
The disconnected cross section of spiral snap slot of the present invention is V-type, and pattern is simply effective, is easy to processing and fractures.
The present invention has ensured the safe and reliable of fixing system, easy and simple to handle, spiral snap slot direction distributes identical with inner hole thread and coaxial, the section thickness of stress concentration position broken positions when this makes to fracture is uniformity, fracture operation after can ensure that section is neat, without foreign bodies such as screw thread overlaps, and increase the safety of locking result, in addition, the starting point of two sections of snap slots is identical with final position height, make the height change of two sections of U-shaped arms not obvious, also can not be significantly increased the sensation of incisura, this snap slot cross section pattern is V-type, pattern is simply effective, be easy to fractureing of processing.
Brief description of the drawings
A kind of structural representation of Fig. 1 is that the present invention is applied to universal (multiaxis) pedicle screw.
Fig. 2 is a kind of schematic diagram that the present invention is applied to the U-shaped nail of retaining element long-tail (multiaxis).
Fig. 3 is the schematic diagram that the present invention is applied to the U-shaped groove U-shaped nail of 8 long-tail (single shaft).
Fig. 4, Fig. 5, Fig. 6 are the schematic diagrams of three different directions of the general U-shaped groove U-shaped nail of 8 long-tail of the present invention (single shaft).
Fig. 4 is front view.
Fig. 5 is left view.
Fig. 6 is right view.
Fig. 7, Fig. 8, Fig. 9 are the design sketchs after the U-shaped nail of general U-shaped flute length tail (single shaft) long-tail part fractures.
The front view that Fig. 7 is.
Fig. 8 is left view.
Fig. 9 is right view.
Detailed description of the invention
Below in conjunction with accompanying drawing, the invention will be further described.
The U-shaped pedicle of vertebral arch locking device of a kind of long-tail, comprise the ailhead being formed by nut and the U-shaped groove of at least two joints, nut is connected as a single entity with the U-shaped groove of first joint, the structure of above-mentioned each ingredient and the interconnected relationship between them are same as the prior art, this does not repeat, the invention is characterized in that U-shaped groove is that opposite ends in a cylindrical body is respectively equipped with U-shaped groove, U-shaped groove inwall is provided with the female thread identical with nut technical parameter, U-shaped groove outer wall both sides are respectively equipped with female thread equidirectional, the snap slot that is spiral dress of coaxial line, a long U-shaped groove is carried out merogenesis by spiral snap slot, the U-shaped groove outer wall of every joint both sides are respectively equipped with pitman hole, to be connected with rod, the starting point of described same joint both sides spiral snap slot is identical with terminal height, make the height change of two sections of U-shaped arms not obvious, also can not be significantly increased the sensation of incisura, in addition, the disconnected cross section of spiral snap slot of the present invention is V-type, pattern is simply effective, be easy to processing and fracture.
asfig. 1 is the design sketch after universal (multiaxis) pedicle screw in general restoring backbone internal fixation system, rod and nut locking, and this is according to an aspect of the present invention.Self threading pin 2 screws in along the inner hole thread passage of ailhead 1 head, and rod 3 and self threading pin 1 are locked the most at last.The a series of similar element that is locked has formed spinal fixation system.
Fig. 2 is the U-shaped nail of general retaining element long-tail (multiaxis), is generally made up of parts such as 4 ailheads (nail seat) and 6 self threading pins.Self threading pin, ailhead and rod complete after locking, long-tail part need be fractureed along snap slot 7.From figure, easily find out, snap slot 7 is the hand of spiral, and identical with screw thread 5 directions in ailhead 4 holes.This is according to an aspect of the present invention.
Fig. 3 is the general U-shaped groove U-shaped nail of 8 long-tail (single shaft), and locking mode is identical with self threading pin, and its long-tail part 9 need to fracture at the tailing edge snap slot 7 that has been locked equally.This is according to an aspect of the present invention.
Fig. 4, Fig. 5, Fig. 6 are the views of three different directions of the general U-shaped groove U-shaped nail of 8 long-tail (single shaft), from figure, obviously can see, on two U-shaped arms of U-shaped nail, all have the spiral snap slot after optimal design.The height dimension of the starting point of snap slot on two U-shaped arms (position 10 and position 13) and terminal (position 11 and position 12) is all identical.This is according to an aspect of the present invention.
Fig. 7, Fig. 8, Fig. 9 are the effects 14 after the general U-shaped groove U-shaped nail of 8 long-tail (single shaft) long-tail part 9 fractures, and can form a neat end face 15 in the position of snap slot.This is according to an aspect of the present invention.
Be illustrated as the view of three directions after the general U-shaped groove U-shaped nail of 8 long-tail (single shaft) long-tail part 9 fractures.Because the starting point (position 10 and position 13) of snap slot on two U-shaped arms is all identical with the height dimension of terminal (position 11 and position 12), so can not cause obvious incisura to increase after fractureing, and both ends of the surface are neat section 15, farthest ensure that safe and reliable and postoperative reduction of apparatus stimulates patient.
The present invention has ensured the safe and reliable of fixing system, easy and simple to handle, spiral snap slot direction distributes identical with inner hole thread and coaxial, the section thickness of stress concentration position broken positions when this makes to fracture is uniformity, fracture operation after can ensure that section is neat, without foreign bodies such as screw thread overlaps, and increase the safety of locking result, in addition, the starting point of two sections of snap slots is identical with final position height, make the height change of two sections of U-shaped arms not obvious, also can not be significantly increased the sensation of incisura, this snap slot cross section pattern is V-type, pattern is simply effective, be easy to fractureing of processing.
Although explain and described preferred embodiment herein, but the those of ordinary skill of correlative technology field will be understood apparently, can make various amendments, interpolation and replacement, only otherwise deviate from its essence, therefore these are considered within the scope of the following claims.
Claims (2)
1. the U-shaped pedicle of vertebral arch locking device of long-tail, comprise the ailhead being formed by nut and the U-shaped groove of at least two joints, nut is connected as a single entity with the U-shaped groove of first joint, it is characterized in that the U-shaped groove outer wall of every joint both sides are respectively equipped with pitman hole, U-shaped groove inwall is provided with the female thread identical with nut, U-shaped groove outer wall both sides are respectively equipped with spiral snap slot equidirectional with female thread, coaxial line, and spiral snap slot is by U-shaped groove merogenesis, identical with terminal height with the starting point of joint both sides spiral snap slot.
2. the U-shaped pedicle of vertebral arch locking device of a kind of long-tail according to claim 1, the disconnected cross section that it is characterized in that spiral snap slot is V-type.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201410155222.0A CN103919603A (en) | 2014-04-18 | 2014-04-18 | Long-tail U-type vertebral pedicle locking device |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201410155222.0A CN103919603A (en) | 2014-04-18 | 2014-04-18 | Long-tail U-type vertebral pedicle locking device |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN103919603A true CN103919603A (en) | 2014-07-16 |
Family
ID=51138172
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201410155222.0A Pending CN103919603A (en) | 2014-04-18 | 2014-04-18 | Long-tail U-type vertebral pedicle locking device |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN103919603A (en) |
Cited By (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105326544A (en) * | 2014-08-11 | 2016-02-17 | 天津康立尔生物科技有限公司 | Breakable pedicle screw |
| CN105326556A (en) * | 2014-08-11 | 2016-02-17 | 天津康立尔生物科技有限公司 | Breakable universal pedicle screw |
| CN105326557A (en) * | 2014-08-11 | 2016-02-17 | 天津康立尔生物科技有限公司 | Fixed pedicle screw system with angle adjusting function |
| CN105708538A (en) * | 2014-08-11 | 2016-06-29 | 天津康立尔生物科技有限公司 | Universal pedicle screw |
| CN105963007A (en) * | 2016-07-08 | 2016-09-28 | 湖南百佳生物工程有限公司 | Minimally invasive pedicle screw system |
| CN111914369A (en) * | 2020-07-30 | 2020-11-10 | 中铁二院工程集团有限责任公司 | Automatic design method of U-shaped groove |
Citations (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US20050273101A1 (en) * | 2004-05-28 | 2005-12-08 | Aesculap Ag & Co. Kg | Bone screw and osteosynthesis device |
| CN201290757Y (en) * | 2008-11-18 | 2009-08-19 | 浙江科惠医疗器械有限公司 | Injectable pediculus arcus vertebrae screw |
| CN101803944A (en) * | 2010-03-26 | 2010-08-18 | 王春 | pedicle screw |
| CN201631368U (en) * | 2009-12-31 | 2010-11-17 | 上海微创骨科医疗科技有限公司 | Hidden reset pedicle screw with fractured surface |
| CN102006830A (en) * | 2008-04-22 | 2011-04-06 | 斯恩蒂斯有限公司 | Bone fixation element with reduction tabs |
| CN202859279U (en) * | 2012-10-12 | 2013-04-10 | 赵红卫 | Novel minimally invasive hollow breakable long-tail screw |
| CN203790020U (en) * | 2014-04-18 | 2014-08-27 | 北京市奥斯比利克新技术开发有限公司 | Locking device with long-tail U-shaped vertebral pedicle |
-
2014
- 2014-04-18 CN CN201410155222.0A patent/CN103919603A/en active Pending
Patent Citations (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US20050273101A1 (en) * | 2004-05-28 | 2005-12-08 | Aesculap Ag & Co. Kg | Bone screw and osteosynthesis device |
| CN102006830A (en) * | 2008-04-22 | 2011-04-06 | 斯恩蒂斯有限公司 | Bone fixation element with reduction tabs |
| CN201290757Y (en) * | 2008-11-18 | 2009-08-19 | 浙江科惠医疗器械有限公司 | Injectable pediculus arcus vertebrae screw |
| CN201631368U (en) * | 2009-12-31 | 2010-11-17 | 上海微创骨科医疗科技有限公司 | Hidden reset pedicle screw with fractured surface |
| CN101803944A (en) * | 2010-03-26 | 2010-08-18 | 王春 | pedicle screw |
| CN202859279U (en) * | 2012-10-12 | 2013-04-10 | 赵红卫 | Novel minimally invasive hollow breakable long-tail screw |
| CN203790020U (en) * | 2014-04-18 | 2014-08-27 | 北京市奥斯比利克新技术开发有限公司 | Locking device with long-tail U-shaped vertebral pedicle |
Cited By (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105326544A (en) * | 2014-08-11 | 2016-02-17 | 天津康立尔生物科技有限公司 | Breakable pedicle screw |
| CN105326556A (en) * | 2014-08-11 | 2016-02-17 | 天津康立尔生物科技有限公司 | Breakable universal pedicle screw |
| CN105326557A (en) * | 2014-08-11 | 2016-02-17 | 天津康立尔生物科技有限公司 | Fixed pedicle screw system with angle adjusting function |
| CN105708538A (en) * | 2014-08-11 | 2016-06-29 | 天津康立尔生物科技有限公司 | Universal pedicle screw |
| CN105963007A (en) * | 2016-07-08 | 2016-09-28 | 湖南百佳生物工程有限公司 | Minimally invasive pedicle screw system |
| CN111914369A (en) * | 2020-07-30 | 2020-11-10 | 中铁二院工程集团有限责任公司 | Automatic design method of U-shaped groove |
| CN111914369B (en) * | 2020-07-30 | 2022-12-20 | 中铁二院工程集团有限责任公司 | Automatic design method of U-shaped groove |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| CN103919603A (en) | Long-tail U-type vertebral pedicle locking device | |
| US8414617B2 (en) | Multi axial cross link connector system for spinal implants | |
| US8066743B2 (en) | Multi-axial, cross-link connector system for spinal implants | |
| US9717528B2 (en) | External fixator with Y strut | |
| JP2022126797A (en) | Surgical connectors and instrumentation | |
| USRE49138E1 (en) | Ratcheted spinal devices | |
| US9615859B2 (en) | Posted translation system and method | |
| JP2018531084A (en) | Spinal fixation system | |
| US9517090B2 (en) | Polyaxial cross connector | |
| JP2015507518A (en) | Improved spinal fixation system | |
| BR112017005402B1 (en) | FUSION SYSTEMS AND ASSEMBLY METHOD | |
| US20120010663A1 (en) | Interspinous Ligament Transverse Connector | |
| WO2017054506A1 (en) | Transverse shifting screw-tail, laterally adjustable spinal screw and implantation method | |
| CN203790020U (en) | Locking device with long-tail U-shaped vertebral pedicle | |
| US10874441B2 (en) | Occipital-cervical fixation equipment | |
| US9763718B2 (en) | Bone screw | |
| US20170172628A1 (en) | Double-Headed Pedicle Screw | |
| US20190117272A1 (en) | Variable screw top cross connector | |
| CN107007339B (en) | Lumbar zygapophysis joint tension band fixator | |
| CN103654934A (en) | Combined type locking screw applied to bone plate and bone plate system comprising same | |
| US9980751B2 (en) | Ratcheted spinal devices | |
| EP3733100A1 (en) | Spinal fixation system | |
| CN219000513U (en) | Modular series of pedicle screws | |
| AU2003285033B2 (en) | Multi-axial, orthopaedic rod cross-link connector system for correcting spinal defects | |
| KR100919429B1 (en) | An assist device for spinal implant |
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: 20140716 |
|
| RJ01 | Rejection of invention patent application after publication |