CN201070386Y - Universal vertebra arch root screw - Google Patents
Universal vertebra arch root screw Download PDFInfo
- Publication number
- CN201070386Y CN201070386Y CNU2007200261416U CN200720026141U CN201070386Y CN 201070386 Y CN201070386 Y CN 201070386Y CN U2007200261416 U CNU2007200261416 U CN U2007200261416U CN 200720026141 U CN200720026141 U CN 200720026141U CN 201070386 Y CN201070386 Y CN 201070386Y
- Authority
- CN
- China
- Prior art keywords
- universal
- screw base
- nail
- locking
- ball end
- 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.)
- Expired - Fee Related
Links
- 238000005516 engineering process Methods 0.000 description 2
- 238000009434 installation Methods 0.000 description 2
- 206010052428 Wound Diseases 0.000 description 1
- 208000027418 Wounds and injury Diseases 0.000 description 1
- 210000000988 bone and bone Anatomy 0.000 description 1
- 230000007812 deficiency Effects 0.000 description 1
- 201000010099 disease Diseases 0.000 description 1
- 208000037265 diseases, disorders, signs and symptoms Diseases 0.000 description 1
- 210000000693 hamate bone Anatomy 0.000 description 1
- 208000014674 injury Diseases 0.000 description 1
- 208000015122 neurodegenerative disease Diseases 0.000 description 1
- 238000001356 surgical procedure Methods 0.000 description 1
- 230000008733 trauma Effects 0.000 description 1
Images
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
- A61B17/7035—Screws or hooks, wherein a rod-clamping part and a bone-anchoring part can pivot relative to each other
Abstract
The utility model relates to a universal pedicle screw which comprises a universal bulb nail, a universal screw base, a ball-shaped fixing ring and top wires. Internal threads are arranged in a groove hole at the upper part of the universal screw base. The bulb of the universal screw base is arranged on the universal screw base, and the upper part of the bulb is tightly pressed and fixed by the ball-shaped fixing ring. A pair of locking nuts are arranged in the groove hole at the upper part of the universal screw base, the internal threads and external threads are arranged in the pair of locking nuts; wherein, the internal threads work together with the top wires, and the external threads work together with the internal threads in the groove hole at the upper part of the universal screw base. In addition, the universal screw base is contacted with the universal bulb nail by wires, so that the universal bulb nail can be used for the positioning and angle locking conveniently and reliably. In the utility model which has a simple structure, the positioning and locking of the universal bulb nail and the assembly and locking of a connecting stick can be conducted step by step, and the positioning and locking of the universal bulb nail is more convenient and more reliable. The utility model is applied to being assembled and fixed in the pedicle of vertebral arc and the utility model can be connected with the connecting stick for the vertebral orthopaedic and the internal fixing.
Description
Technical field
This utility model relates to a kind of bone surgery medical apparatus, specifically a kind of universal pedicle nail that is used for backbone correcting and internal fixation.
Background technology
We know, at present, to the disease of spinal trauma, slippage, degenerative disease and other unstable spine, adopt the spinal fixation device to fix more.Existing spinal fixation device kind is more, mainly contains the Ha Shi rod, and apparatuses such as Shandong Ge Shi rod are installed composition by pedicle nail or universal pedicle nail, hamulus of hamate bone etc.At present, universal pedicle nail mainly comprises universal ball end nail and universal screw base, spherical retainer ring, jackscrew or plug screw etc.Be provided with female thread in the slotted eye of universal screw base top, itself and be provided with corresponding externally threaded jackscrew or plug screw and cooperate, be used for pitman being installed and being fixed spherical retainer ring etc. by jackscrew or plug screw.The bulb of universal ball end nail is positioned at universal screw base, contacts with universal screw base arc surface, and top is fixed with spherical retainer ring etc.Owing to pitman is installed and is fixed spherical retainer ring with jackscrew or plug screw, universal ball end nail and one step of pitman install, location, locking, is difficult to two sometimes and turns round and look at, make the installation of pitman and universal ball end nail the location, lock unreliable.In addition, the universal ball end nail is that arc surface contacts with universal screw base, and contact surface is big, slide easily, cause universal ball end nail location and angle locking unreliable, and then it is loosening spherical retainer ring, pitman, plug screw or jackscrew etc. to occur, can cause the complication of wound face thus.
Summary of the invention
Technical problem to be solved in the utility model is to overcome above-mentioned the deficiencies in the prior art, provides a kind of simple in structure, substep location, locking, convenient, the reliable universal pedicle nail of universal ball end nail location and angle locking.
The technical scheme in the invention for solving the above technical problem is: a kind of universal pedicle nail, it comprises universal ball end nail, universal screw base, spherical retainer ring, jackscrew, be provided with female thread in the slotted eye of universal screw base top, the bulb of universal ball end nail is positioned at universal screw base, top is fixed by spherical retainer ring, it is characterized in that: be provided with a pair of locking nut in the slotted eye of universal screw base top, this twin-lock jack panel is provided with female thread, external screw thread, wherein female thread cooperates with jackscrew, the screw-internal thread fit in external screw thread and the universal screw base top slotted eye.
It is the 2-3 millimeter that the top of the said twin-lock jack panel of this utility model also is provided with width, and the degree of depth is the cross recess of 1.5-2 millimeter.
The universal screw base of this utility model bottom is provided with annular wedge angle projection, and annular wedge angle projection contacts with universal ball end nail line.
This utility model is owing to be provided with a pair of locking nut in the slotted eye of universal screw base top, against existing technologies, it cooperates with the female thread and the jackscrew of universal screw base respectively, can realize that universal ball end is followed closely and pitman is installed step by step, locatees, locked, universal in addition screw base contacts with universal ball end nail line, makes universal ball end nail location and angle locking convenient, reliable.This utility model is simple in structure, the installation of location, locking and the pitman of universal ball end nail, locking proceed step by step, and location, the locking of universal ball end nail are more convenient, more reliable.
Description of drawings
The utility model will be further described below in conjunction with accompanying drawing:
Fig. 1 is a structural representation of the present utility model.
1. universal ball ends nail among the figure, 2. universal screw base, 3. spherical retainer ring, 4. annular wedge angle projection, 5. jackscrew, 6. twin-lock jack panel.
The specific embodiment
As can be seen from Figure 1, a kind of universal pedicle nail, it comprises universal ball end nail 1, universal screw base 2, spherical retainer ring 3, jackscrew 5, is provided with female thread in the universal screw base 2 top slotted eyes, the bulb of universal ball end nail is positioned at universal screw base, and top is fixed by spherical retainer ring 3.
Characteristics of the present utility model are: be provided with a pair of locking nut 6 in the universal screw base 2 top slotted eyes, this twin-lock jack panel 6 is provided with female thread, external screw thread, and wherein female thread cooperates with jackscrew 5, the screw-internal thread fit in external screw thread and the universal screw base 2 top slotted eyes.It is the 2-3 millimeter that the top of the said twin-lock jack panel of this utility model also is provided with width, and the degree of depth is the cross recess of 1.5-2 millimeter.Use when installing, after in the groove on the universal screw base of universal pedicle nail 2 tops, putting into pitman, be screwed into the twin-lock jack panel 6 that matches, twin-lock jack panel 6 compresses spherical retainer ring 3, makes the back locking of universal ball end nail 1 location, the locking back forms the fixed angle nail, can strut then or compress and reset, reset finish after, in the female thread of twin-lock jack panel 6, be screwed into the jackscrew 5 that matches, jackscrew 5 is screwed in the twin-lock jack panel 6, and compresses pitman and make rod locking.This structure of locking step by step makes the location of universal pedicle nail more convenient, reliable.
The universal screw base of this utility model 2 bottoms are provided with annular wedge angle projection 4, and annular wedge angle projection 4 is followed closely 1 line with universal ball end and contacted.Like this, universal ball end nail 1 is difficult for sliding, and its location and angle locking are convenient, reliable.
This utility model is owing to be provided with a pair of locking nut in the slotted eye of universal screw base top, it cooperates with the female thread and the jackscrew of universal screw base respectively, can realize that universal ball end is followed closely and pitman is installed step by step, locatees, locked, universal in addition screw base contacts with universal ball end nail line, makes universal ball end nail location and angle locking convenient, reliable.
This utility model is suitable for installing and fixing in pedicle of vertebral arch, is used for backbone correcting and internal fixation by being connected with pitman.
Claims (3)
1. universal pedicle nail, it comprises universal ball end nail, universal screw base, spherical retainer ring, jackscrew, be provided with female thread in the slotted eye of universal screw base top, the bulb of universal ball end nail is positioned at universal screw base, top is fixed by spherical retainer ring, it is characterized in that: be provided with a pair of locking nut in the slotted eye of universal screw base top, this twin-lock jack panel is provided with female thread, external screw thread, wherein female thread cooperates with jackscrew, the screw-internal thread fit in external screw thread and the universal screw base top slotted eye.
2. universal pedicle nail according to claim 1 is characterized in that: it is the 2-3 millimeter that the top of said twin-lock jack panel also is provided with width, and the degree of depth is the cross recess of 1.5-2 millimeter.
3. universal pedicle nail according to claim 1 is characterized in that: universal screw base bottom is provided with annular wedge angle projection, and annular wedge angle projection contacts with universal ball end nail line.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CNU2007200261416U CN201070386Y (en) | 2007-08-03 | 2007-08-03 | Universal vertebra arch root screw |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CNU2007200261416U CN201070386Y (en) | 2007-08-03 | 2007-08-03 | Universal vertebra arch root screw |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN201070386Y true CN201070386Y (en) | 2008-06-11 |
Family
ID=39548942
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CNU2007200261416U Expired - Fee Related CN201070386Y (en) | 2007-08-03 | 2007-08-03 | Universal vertebra arch root screw |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN201070386Y (en) |
Cited By (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102973314A (en) * | 2011-09-07 | 2013-03-20 | 常州市康辉医疗器械有限公司 | Thoracolumbar spine posterior minimally invasive bone cement spine internal fixation system and application |
| 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 |
| CN108843669A (en) * | 2018-08-01 | 2018-11-20 | 上海斯潘威生物技术有限公司 | A kind of adjustable double tail screws for double stick connection |
| CN109394323A (en) * | 2018-12-25 | 2019-03-01 | 上海斯潘威生物技术有限公司 | A kind of self-locking Universal screw nail structure for internal fixation of spine |
| CN111447884A (en) * | 2017-12-15 | 2020-07-24 | 华沙整形外科股份有限公司 | Spinal implant system and method of use |
| CN111479527A (en) * | 2017-12-15 | 2020-07-31 | 华沙整形外科股份有限公司 | Spinal implant system and method of use |
-
2007
- 2007-08-03 CN CNU2007200261416U patent/CN201070386Y/en not_active Expired - Fee Related
Cited By (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102973314A (en) * | 2011-09-07 | 2013-03-20 | 常州市康辉医疗器械有限公司 | Thoracolumbar spine posterior minimally invasive bone cement spine internal fixation system and application |
| 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 |
| CN111447884A (en) * | 2017-12-15 | 2020-07-24 | 华沙整形外科股份有限公司 | Spinal implant system and method of use |
| CN111479527A (en) * | 2017-12-15 | 2020-07-31 | 华沙整形外科股份有限公司 | Spinal implant system and method of use |
| CN111447884B (en) * | 2017-12-15 | 2023-04-04 | 华沙整形外科股份有限公司 | Spinal implant system and method of use |
| CN108843669A (en) * | 2018-08-01 | 2018-11-20 | 上海斯潘威生物技术有限公司 | A kind of adjustable double tail screws for double stick connection |
| CN109394323A (en) * | 2018-12-25 | 2019-03-01 | 上海斯潘威生物技术有限公司 | A kind of self-locking Universal screw nail structure for internal fixation of spine |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| US10448975B2 (en) | Multi-axial spinal fixation system | |
| US9936981B2 (en) | Anchor device for anchoring an elongated rod to the spine | |
| US10245077B2 (en) | Bone anchor receiver with horizontal radiused tool attachment grooves and 2-part closure | |
| US8784455B2 (en) | Bone anchoring device | |
| CN201070386Y (en) | Universal vertebra arch root screw | |
| US8088149B2 (en) | Dynamic intervertebral stabilization system | |
| US20090012567A1 (en) | Locking assembly for securing a rod member in a receiver part for use in spinal or trauma surgery, bone anchoring device with such a locking assembly and tool therefor | |
| CA2918377A1 (en) | Spring clip bottom loading polyaxial ball and socket fastener | |
| CN206044709U (en) | A kind of automatically reset pedicle nail | |
| CN203647452U (en) | Vertebral pedicle compressing and locking device of spine screw-rod system | |
| CN105596071A (en) | Dual-functional pedicle screw | |
| US9763718B2 (en) | Bone screw | |
| US10357286B2 (en) | Osteosynthesis system comprising means for straightening a bone anchoring element relative to a screw head and anchoring screw implemented in such a system | |
| CN203074843U (en) | Anti-wire-retreating pedicle screw | |
| CN206934157U (en) | A kind of wide-angle Universal pedicle screw of undercut mark Bidirectional locking | |
| CN201073335Y (en) | Universal screw nail | |
| CN105434021A (en) | Pedicle screw | |
| CN106510822B (en) | Combined pelvis drift minimally invasive internal fixing device | |
| CN211094602U (en) | Universal pedicle screw | |
| CN201441445U (en) | Fixer in spine |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| C17 | Cessation of patent right | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20080611 Termination date: 20120803 |