CN203693736U - Universal pedicle screw component - Google Patents
Universal pedicle screw component Download PDFInfo
- Publication number
- CN203693736U CN203693736U CN201320876827.XU CN201320876827U CN203693736U CN 203693736 U CN203693736 U CN 203693736U CN 201320876827 U CN201320876827 U CN 201320876827U CN 203693736 U CN203693736 U CN 203693736U
- Authority
- CN
- China
- Prior art keywords
- screw base
- screw seat
- screw
- button
- universal pedicle
- 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 - Lifetime
Links
- 230000009286 beneficial effect Effects 0.000 description 1
- 230000015572 biosynthetic process Effects 0.000 description 1
- 230000008602 contraction Effects 0.000 description 1
- 230000007812 deficiency Effects 0.000 description 1
- 238000010586 diagram Methods 0.000 description 1
Landscapes
- Surgical Instruments (AREA)
Abstract
The utility model relates to the technical field of spinal fixation devices, in particular to a universal pedicle screw component which comprises a screw seat, a bulb nail, a clamp sleeve and a spherical ring, wherein the clamp sleeve is arranged outside the screw seat, the spherical ring is arranged in the screw seat, the screw seat and the bulb nail are connected in an inserting manner, a U-shaped slot which is used to place a spinal rod is arranged in the upper portion of the screw seat, through holes which are used to place the spherical ring and a bulb head part of the bulb nail are arranged in the lower portion of the screw seat, the U-shaped slot and the through holes are communicated, the spherical ring is arranged above the bulb nail, and the clamp sleeve sleeves the bottom portion of the screw seat. The universal pedicle screw component is simple in structure, convenient to operate, enables the clamp sleeve not to easily deform, improves whole assembling ability and stability, and improves work efficiency.
Description
Technical field
This utility model relates to the technical field of spinal fixation system, especially a kind of Universal pedicle screw assembly.
Background technology
The assembling mode of Universal pedicle screw is in the past: ball collar, button, snap ring pack into screw base from bottom respectively, and snap ring is contained in screw base bottom inside.This assembling mode exist following some: snap ring is easily out of shape, and in the time that the external diameter of screw is larger, assembling will be met difficulty.
Utility model content
The technical problems to be solved in the utility model is: overcome the deficiency in prior art, a kind of Universal pedicle screw assembly is provided.
This utility model solves the technical scheme that its technical problem adopts: a kind of Universal pedicle screw assembly, comprise screw base, button, be positioned at the outside cutting ferrule of screw base and be arranged on the ball collar of screw base, screw base and button are pegged graft, the top of described screw base has the U-shaped groove of placing spinal rod, the bottom of screw base has the through hole of placing ball collar and button bulb part, U-shaped groove is connected with through hole, ball collar is positioned at the top of button, and cutting ferrule is sleeved on the outer surface of screw base bottom.
The bottom of described screw base is inwardly shunk and is boss, and cutting ferrule is sleeved on boss.
Described screw base is inverted convex shape.
On the hole wall of described screw base contraction flow region, have at least three grooves.
The beneficial effects of the utility model are: this utility model is simple in structure, easy to operate, and cutting ferrule is not yielding, have increased assembling capacity and the stability of whole assembly, have improved work efficiency.
Accompanying drawing explanation
Below in conjunction with drawings and embodiments, this utility model is further illustrated.
Fig. 1 is structural representation of the present utility model.
Fig. 2 is the structural representation of this utility model screw base.
In figure: 1. screw base, 11.U type groove, 12. boss, 2. button, 3. cutting ferrule, 4. ball collar.
The specific embodiment
By reference to the accompanying drawings this utility model is further described now.The schematic diagram that these accompanying drawings are simplification only illustrates basic structure of the present utility model in a schematic way, and therefore it only shows the formation relevant with this utility model.
Universal pedicle screw assembly as depicted in figs. 1 and 2, comprise screw base 1, button 2, be positioned at the outside cutting ferrule 3 of screw base 1 and be arranged on the ball collar 4 of screw base 1, screw base 1 is pegged graft with button 2, the top of screw base 1 has the U-shaped groove 11 of placing spinal rod, the bottom of screw base 1 has the through hole of placing ball collar 4 and button 2 bulb parts, U-shaped groove 11 is connected with through hole, and ball collar 4 is positioned at the top of button 2, and cutting ferrule 3 is sleeved on the outer surface of screw base 1 bottom.
The bottom of screw base 1 is inwardly shunk and is boss 12, and cutting ferrule 3 is sleeved on (both are interference fit) on boss 12, and screw base 1 is inverted convex shape.
Boss 12 has three grooves or multiple groove, so that screw base 1 has elasticity, facilitates the head of button to snap in.
First ball collar 4 is packed into from the through hole of screw base 1, again the bulb of button 2 is filled in through hole, then cutting ferrule 3 is sleeved on boss 12, owing to having groove on boss 12, make boss there is certain elasticity, so the head of button can snap in through hole, and cutting ferrule 3 also can coordinate more firm with screw base 1; In the time that spinal rod is pushed down ball collar 4, pressure passes to button 2 by ball collar 4, just make the screw base 1 outside spreading in bottom, thereby increased the stability of whole assembly.
Above-mentioned embodiment is only explanation technical conceive of the present utility model and feature; its object is to allow person skilled in the art can understand content of the present utility model and be implemented; can not limit protection domain of the present utility model with this; all equivalences of doing according to this utility model spirit change or modify, and all should be encompassed in protection domain of the present utility model.
Claims (4)
1. a Universal pedicle screw assembly, it is characterized in that: comprise screw base (1), button (2), be positioned at the outside cutting ferrule (3) of screw base (1) and be arranged on the ball collar (4) of screw base (1), screw base (1) is pegged graft with button (2), the top of described screw base (1) has the U-shaped groove (11) of placing spinal rod, the bottom of screw base (1) has the through hole of placing ball collar (4) and button (2) bulb part, U-shaped groove (11) is connected with through hole, ball collar (4) is positioned at the top of button (2), cutting ferrule (3) is sleeved on the outer surface of screw base (1) bottom.
2. Universal pedicle screw assembly according to claim 1, is characterized in that: the bottom of described screw base (1) is inwardly shunk and is boss (12), and cutting ferrule (3) is sleeved on boss (12).
3. Universal pedicle screw assembly according to claim 2, is characterized in that: described screw base (1) is inverted convex shape.
4. Universal pedicle screw assembly according to claim 2, is characterized in that: on described boss (12), have at least three grooves.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201320876827.XU CN203693736U (en) | 2013-12-27 | 2013-12-27 | Universal pedicle screw component |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201320876827.XU CN203693736U (en) | 2013-12-27 | 2013-12-27 | Universal pedicle screw component |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN203693736U true CN203693736U (en) | 2014-07-09 |
Family
ID=51044252
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201320876827.XU Expired - Lifetime CN203693736U (en) | 2013-12-27 | 2013-12-27 | Universal pedicle screw component |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN203693736U (en) |
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105361941A (en) * | 2015-12-14 | 2016-03-02 | 中国人民解放军第二军医大学 | Atlas vertebral pedicle hollow universal screw |
| CN105496537A (en) * | 2015-12-31 | 2016-04-20 | 林列 | Internal fixation steel plate for sternoclavicular joint |
| CN106725791A (en) * | 2017-03-01 | 2017-05-31 | 常州凯耀医疗器械有限公司 | Backbone correcting fixed system |
| 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 |
-
2013
- 2013-12-27 CN CN201320876827.XU patent/CN203693736U/en not_active Expired - Lifetime
Cited By (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105361941A (en) * | 2015-12-14 | 2016-03-02 | 中国人民解放军第二军医大学 | Atlas vertebral pedicle hollow universal screw |
| CN105496537A (en) * | 2015-12-31 | 2016-04-20 | 林列 | Internal fixation steel plate for sternoclavicular joint |
| CN106725791A (en) * | 2017-03-01 | 2017-05-31 | 常州凯耀医疗器械有限公司 | Backbone correcting fixed system |
| CN106725791B (en) * | 2017-03-01 | 2023-11-28 | 常州凯耀医疗器械有限公司 | Spinal orthopedic fixation system |
| 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 |
|---|---|---|
| CN203693736U (en) | Universal pedicle screw component | |
| CN203597536U (en) | Dual-purpose eyeliner and eye shadow | |
| CN203647268U (en) | Novel mop rod | |
| CN205794321U (en) | A kind of garden seedling tree fixing device | |
| CN202965750U (en) | Multipurpose pen container | |
| CN205214901U (en) | Multi -functional storage cabinet | |
| CN203935119U (en) | A kind of travelling Portable multifunctional rinsing cup | |
| CN204755548U (en) | Locking screw of antivibration | |
| CN202525260U (en) | Sole | |
| CN203597154U (en) | Water storage flowerpot base | |
| CN202782330U (en) | Pen capable of preventing pen cap from missing | |
| CN203038571U (en) | Wireless open seal | |
| CN203038567U (en) | Wireless sealing seal | |
| CN204037189U (en) | Do not fall the solid gum of lid | |
| CN205597869U (en) | Prevent joint structure, joint subassembly and mop washtub of dropout | |
| CN203574148U (en) | Ladder-shaped plug sleeve | |
| CN204883465U (en) | Turning handle | |
| CN205900968U (en) | Row is inserted to two feet, compatible compact of tripod | |
| CN204868695U (en) | Screwdriver with multiple model | |
| CN203585926U (en) | Combined bamboo joint lamp | |
| CN203576242U (en) | Multipurpose incense table | |
| CN203244204U (en) | Cup sleeve | |
| CN203609151U (en) | Base of coffee cup combination set | |
| CN202021961U (en) | Shovel-shaped pen | |
| CN203927779U (en) | A kind of syndeton of microwave oven |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| CX01 | Expiry of patent term |
Granted publication date: 20140709 |
|
| CX01 | Expiry of patent term |