CN206214167U - A kind of backbone minimal invasion pedicle nail nail seat and extension piece draw bail - Google Patents
A kind of backbone minimal invasion pedicle nail nail seat and extension piece draw bail Download PDFInfo
- Publication number
- CN206214167U CN206214167U CN201620217730.1U CN201620217730U CN206214167U CN 206214167 U CN206214167 U CN 206214167U CN 201620217730 U CN201620217730 U CN 201620217730U CN 206214167 U CN206214167 U CN 206214167U
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- China
- Prior art keywords
- nail
- extension piece
- nail seat
- pedicle
- seat
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Abstract
The utility model discloses a kind of backbone minimal invasion pedicle nail nail seat and extension piece draw bail, it is related to bone surgery instrument field.This structure includes metal pedicle nail nail seat and composite extension two components of piece.The utility model extends the elasticity of piece using composite, with reference to the draw bail of pedicle nail nail seat, after extension piece is inserted nail seat certain distance, circular groove on the round boss and nail seat of extension piece top is engaged, the purpose that connection is interlocked is reached, and then ensures that pushing extension piece aside is observed pitman position with separate tissue and the fastness of centrum is lifted using extension piece auxiliary.The structure is made that larger improvement for conventional spinal internal fixation system, make only to need to provide the otch of pedicle screw in surgical procedure, it is smaller than the spinal operation otch of tradition or standard, tissue injury is small, bleeding is few, manipulation accuracy is high, effect affirmative, postoperative function recover fast so as to greatly reduce patient's pain.
Description
Technical field
The utility model is related to bone surgery instrument field, more particularly to a kind of backbone minimal invasion pedicle nail nail seat
And extension piece draw bail.
Background technology
Traditional open internal fixation of spine technology is roughly divided into curved rod, and three steps of pressurization and locking will first reset
Rod is pre-bent to the substantially tracing pattern of human spine, is connected with backbone by pedicle nail and struts pressurization, finally that reset rod is final
It is locked in the U-lag of pedicle nail.More than operation for open surgery, will fully it is exposed under the conditions of enter
OK.Accordingly, it would be desirable to big otch, big otch can cause permanent injury to some soft tissues of human body, post-operative recovery time compared with
It is long.
Due to the shortcoming of open surgery, mini-invasive incision therapy is produced therewith, and the therapy is mitigated with reducing operation risk
Condition premised on patient suffering, by means of the prolongation coupled with pedicle nail cooperation, carrys out chorista, reaches at sufferer,
Operation is set reliably to carry out.Extend respectively in the U-lag two side of conventional pedicle nail, increased rigid extension body.Pressure bar, put
Rod lock operation can be carried out under the guide effect of extension body, small otch.
However, the clubs of wearing in above-mentioned minimally-invasive treatment has difficulties, rigidity extension piece to wear rod space immutable, and
The rigidity extension piece stretched out outside skin may bring unexpected risk to operation, and cause reset rod penetrates operation difficulty
Height, risk is big.
With constantly improvement, elastic elongation piece is occurred in that, it wears asking for rod difficulty in solving Minimally Invasive Surgery well
Topic, wears rod space and substantially improves, and elastic elongation piece outside skin greatly reduces the emergency risk in operation.
But the problem that this flexible extension piece couples with pedicle nail is thereupon, such as, and linking intensity and stability
Problem.
In view of this, the draw bail of pedicle nail nail seat and extension piece how is improved, has made to wear clubs work in minimally invasive treatment
Can preferably be carried out in method, reduce operation risk, be those skilled in the art's technical issues that need to address.
Utility model content
In order to solve the above technical problems, the purpose of this utility model is to provide one kind more to pedicle nail nail seat and extension piece
Effectively more reliable connecting mode, further reduces the risk of Minimally Invasive Surgery.
What the purpose of this utility model was realized in：
A kind of backbone minimal invasion pedicle nail nail seat and extension piece draw bail that the utility model is provided；This practicality is new
Type is inserted using the elastic deformation for extending piece from pedicle nail nail seat top, using pedicle nail nail seat U-lag sidewall notches
(24) circular groove (21) clamping playing the guiding role in round boss (11) and the pedicle nail nail seat for making on extension piece, while
The rectangle guide ledges (14) of bilateral provide opposition on extension piece, realize the connection of extension piece and pedicle nail nail seat.
And, after extension piece insertion pedicle nail nail seat, using the axial boss (25) and the groove of extension piece of pedicle nail nail seat
(15) provided with the smooth connection for being combined into extension piece screw thread (13) and pedicle nail nail seat screw thread (23) and be accurately positioned, while also preventing
Only extension piece is caused to be deviate from due to transition curved elongated piece in surgical procedure.So as to realize extension piece and pedicle nail nail seat
Connection, and then realize using extend piece increase wear rod space and using extend piece carry out lift centrum effect.
The structure is made that improvement for common minimally invasive spine internal fixation system, improves bonding strength and reliability, no
Success rate of operation is only substantially increased, and reduces production cost, so as to reduce the medical expense burden of many patients.
Brief description of the drawings
In order that the purpose of this utility model, technical scheme and advantage are clearer, below in conjunction with accompanying drawing to this practicality
It is new to be further described, wherein：
The elastic elongation chip architecture schematic diagram that Fig. 1 is provided for the utility model embodiment.
Another structural representation of the elastic elongation piece that Fig. 2 is provided for the utility model embodiment.
The another structural representation of the elastic elongation piece that Fig. 3 is provided for the utility model embodiment.
The structural representation of the pedicle nail nail seat that Fig. 4 is provided for the utility model embodiment.
Another structural representation of the pedicle nail nail seat that Fig. 5 is provided for the utility model embodiment.
Backbone minimal invasion pedicle nail nail seat and extension piece draw bail group that Fig. 6 is provided for the utility model embodiment
Close schematic diagram.
Backbone minimal invasion pedicle nail nail seat and extension piece draw bail group that Fig. 7 is provided for the utility model embodiment
Another schematic diagram for closing.
Reference：
1- extends piece；2- pedicle nail nail seats；21- circular grooves；11- round boss；22- nail seat U-lag walls；12- determines
Position sphere；23- nail seat screw threads；13- screw threads；24- nail seat U-lag sidewall notches；14- boss；25- nail seat axial boss；15- is recessed
Groove.
Specific embodiment
Hereinafter with reference to accompanying drawing, preferred embodiment of the present utility model is described in detail.It should be appreciated that it is preferred that real
Example is applied only for explanation the utility model, rather than in order to limit protection domain of the present utility model.
As illustrated, backbone minimal invasion pedicle nail nail seat and extension piece draw bail that the utility model is provided, vertebra
The circular bosses and round recessed that nut nail seat and extension piece interact coordinate.The utility model by extend piece draw bail with
Pedicle nail nail seat coupling arrangement is combined, and realizes the fixation of extension piece and nail seat, and then realizes expanding extension piece with convenient
Wear rod and aid in lifting centrum using extension piece.
Extension piece and nail seat coordinate, when the boss on extension piece both sides is under the limitation of nail seat stopper slot, by a positioning
Postpone, there is provided opposite force so that the circular groove on round boss and nail seat on extension piece is mutually twisted, the spiral shell on extension piece
Line is engaged also with the axial boss of nail seat and the axial notch of extension piece so that screw thread can coordinate accurately, on extension piece
Positioning hemisphere and the groove fit of U-lag two side, implement positioning.
Finally illustrate, above example is only used to illustrate the technical solution of the utility model and unrestricted, although logical
Cross the utility model is described with reference to preferred embodiment of the present utility model, but one of ordinary skill in the art
It should be appreciated that various changes can be made to it in the form and details, limited without departing from the utility model
Spirit and scope.
Claims (1)
1. a kind of backbone minimal invasion pedicle nail nail seat and extension piece draw bail, it is characterised in that including extension piece (1) and
Pedicle nail nail seat (2)；
One end of extension piece (1) offers the round boss being engaged for circular groove (21) on pedicle nail nail seat (2)
(11)；There is the location sphere (12) coordinated with nail seat U-lag wall (22) on extension piece (1)；Have on extension piece (1) and
The screw thread (13) of nail seat screw thread (23) extension；There is the boss coordinated with nail seat U-lag sidewall notches (24) on extension piece (1)
(14)；There is the groove (15) coordinated with nail seat axial boss (25) on extension piece (1).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201620217730.1U CN206214167U (en) | 2016-03-22 | 2016-03-22 | A kind of backbone minimal invasion pedicle nail nail seat and extension piece draw bail |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201620217730.1U CN206214167U (en) | 2016-03-22 | 2016-03-22 | A kind of backbone minimal invasion pedicle nail nail seat and extension piece draw bail |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN206214167U true CN206214167U (en) | 2017-06-06 |
Family
ID=58779521
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201620217730.1U Expired - Fee Related CN206214167U (en) | 2016-03-22 | 2016-03-22 | A kind of backbone minimal invasion pedicle nail nail seat and extension piece draw bail |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN206214167U (en) |
Cited By (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110169815A (en) * | 2019-05-15 | 2019-08-27 | 迪恩医疗科技有限公司 | A kind of rigidity extension sheet and pedicle nail |
| CN110811801A (en) * | 2019-11-29 | 2020-02-21 | 苏州欣荣博尔特医疗器械有限公司 | Pedicle screw-rod system for lifting and restoring vertebral column vertebral body |
| CN111839692A (en) * | 2020-08-24 | 2020-10-30 | 吉林大学 | Skull depressed fracture reduction device |
| CN112120774A (en) * | 2020-09-16 | 2020-12-25 | 天津市威曼生物材料有限公司 | Extension nail cap of pedicle of vertebral arch nail |
| CN111839692B (en) * | 2020-08-24 | 2024-04-26 | 吉林大学 | Skull depression fracture restitution device |
-
2016
- 2016-03-22 CN CN201620217730.1U patent/CN206214167U/en not_active Expired - Fee Related
Cited By (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110169815A (en) * | 2019-05-15 | 2019-08-27 | 迪恩医疗科技有限公司 | A kind of rigidity extension sheet and pedicle nail |
| CN110169815B (en) * | 2019-05-15 | 2022-03-18 | 迪恩医疗科技有限公司 | Rigid extension sheet and pedicle screw |
| CN110811801A (en) * | 2019-11-29 | 2020-02-21 | 苏州欣荣博尔特医疗器械有限公司 | Pedicle screw-rod system for lifting and restoring vertebral column vertebral body |
| CN111839692A (en) * | 2020-08-24 | 2020-10-30 | 吉林大学 | Skull depressed fracture reduction device |
| CN111839692B (en) * | 2020-08-24 | 2024-04-26 | 吉林大学 | Skull depression fracture restitution device |
| CN112120774A (en) * | 2020-09-16 | 2020-12-25 | 天津市威曼生物材料有限公司 | Extension nail cap of pedicle of vertebral arch nail |
| CN112120774B (en) * | 2020-09-16 | 2024-03-05 | 天津市威曼生物材料有限公司 | Extension nail cap of pedicle of vertebral arch nail |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| GR01 | Patent grant | ||
| GR01 | Patent grant | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20170606 |
|
| CF01 | Termination of patent right due to non-payment of annual fee |