CN107320167A - A kind of pedicle nail - Google Patents
A kind of pedicle nail Download PDFInfo
- Publication number
- CN107320167A CN107320167A CN201710703310.3A CN201710703310A CN107320167A CN 107320167 A CN107320167 A CN 107320167A CN 201710703310 A CN201710703310 A CN 201710703310A CN 107320167 A CN107320167 A CN 107320167A
- Authority
- CN
- China
- Prior art keywords
- drawing bar
- fastener
- attaching nut
- screw body
- shaped
- 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
-
- 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
- A61B17/7046—Screws or hooks combined with longitudinal elements which do not contact vertebrae the screws or hooks being mobile in use relative to the longitudinal element
Abstract
The present invention discloses a kind of pedicle nail, including screw body, the end of the screw body is provided with attaching nut, the end of the attaching nut is provided with a U-shaped drawing bar fastener, the attaching nut rotates groove with U-shaped drawing bar fastener junction provided with fastener, and the fastener, which is rotated, is provided with fastener fixing hole, attaching nut's flat mouth screw socket in groove；A drawing bar neck is offered in the U-shaped drawing bar fastener, provided with the connector that can be connected with fastener fixing hole in the drawing bar neck, the drawing bar neck side is provided with the drawing bar fastening bolt that can be embedded within and in U-shaped drawing bar fastener, and the end of the drawing bar fixing bolt offers a flat mouth screw socket.This pedicle nail sets the attaching nut that can be adjusted relatively and U-shaped drawing bar fastener, realizes that it is fixed without the position by adjusting screw body, effectively prevent screw body and cause secondary injury to pedicle of vertebral arch, be easy to doctor to operate, practicality is good.
Description
Technical field
The present invention relates to a kind of medicine equipment, and in particular to a kind of pedicle nail.
Background technology
Backbone non-fusion technology, because it has the damage to backbone small, maintains backbone on treatment spinal lesion
Mobility and stability, the biomechanics characteristic of reconstruction of intervertebral disc prevent and mitigate regression acceleration of adjacent segment interverbebral disc etc.
Advantage, in recent years many hospitals have begun to use, a piece of light of its application prospect.
At present, the pedicle nail used in spinal operation includes staple seat, locking jackscrew, screw body, screw body
It will be able to be in being fixedly connected for fixed angle with staple seat, Universal screw nail can also be connected into through bulb, ball cup.So tie
There is following defect in the pedicle nail of structure：Staple seat is monolithic construction, and staple seat is that one is fixed with screw body
Structure, in trip bolt body, it is impossible to individually adjust the angle of staple seat and fastening screw, but pass through adjusting screw sheet
The angulation change of staple seat is realized in the position of body, the screw thread on screw body is caused secondary injury to pedicle of vertebral arch, extension is suffered from
The rehabilitation duration of person, poor practicability.
The content of the invention
In view of the deficienciess of the prior art, the present invention provides a kind of pedicle nail, the staple seat of this pedicle nail includes
The attaching nut that can be adjusted relatively and U-shaped drawing bar fastener, realize that it is fixed, effectively without the position by adjusting screw body
Avoid screw body and secondary injury is caused to pedicle of vertebral arch, be easy to doctor to operate, practicality is good.
In order to achieve the above object, the technical scheme that the present invention takes：
A kind of pedicle nail, including the outer surface of screw body, the screw body are provided with fastening thread, the screw sheet
The end of body is provided with attaching nut, and the end of the attaching nut is provided with a U-shaped drawing bar fastener, the attaching nut and U-shaped
Drawing bar fastener junction rotates groove provided with fastener, and the fastener, which is rotated, is provided with fastener fixing hole and attaching nut in groove
Flat mouth screw socket；Offered in the U-shaped drawing bar fastener and be provided with and can consolidate with fastener in a drawing bar neck, the drawing bar neck
Determine the connector of hole mating connection, the drawing bar neck side, which is provided with, can be embedded within and in U-shaped drawing bar fastener
Drawing bar fastening bolt, the end of the drawing bar fixing bolt offers a flat mouth screw socket.
As optimal technical scheme, in order to ensure the steadiness of screw body, security performance is improved, is conducive to patient's health
Multiple, the screw body is set to integral structure with attaching nut.
As the insertion of optimal technical scheme, for convenience drawing bar, on the one hand ensure to be prevented effectively from two to pedicle of vertebral arch
Secondary injury, on the other hand ensures the tightness of screw body, passes through between the drawing bar fastening bolt and U-shaped drawing bar fastener
Thread engagement connection.
Compared with prior art, the device have the advantages that：
The 1st, the attaching nut that can be adjusted relatively and U-shaped drawing bar fastener are set, without the position by adjusting screw body
Realize that it is fixed, effectively prevent screw body and secondary injury is caused to pedicle of vertebral arch, be easy to doctor to operate, practicality is good.
2nd, screw body and attaching nut are set to integral structure, it is ensured that the steadiness of screw body, improve security
Can, be conducive to Rehabilitation.
3rd, connection is engaged by thread between drawing bar fastening bolt and U-shaped drawing bar fastener, facilitates the insertion of drawing bar,
On the one hand ensure to be prevented effectively from the secondary injury to pedicle of vertebral arch, on the other hand ensure the tightness of screw body.
Brief description of the drawings
The present invention is described in further detail with specific embodiment below in conjunction with the accompanying drawings.
Fig. 1 is structural representation of the invention；
Fig. 2 is the structural representation of attaching nut；
Fig. 3 is the structural representation of U-shaped drawing bar fastener；
Drawing reference numeral：1st, screw body, 2, fastening thread, 3, attaching nut, 4, U-shaped drawing bar fastener, 5, fastener rotates
Groove, 6, fastener fixing hole, 7, attaching nut's flat mouth screw socket, 8, drawing bar neck, 9, connector, 10, drawing bar fixing bolt,
11st, flat mouth screw socket.
Embodiment
A kind of specific embodiment of the invention, a kind of pedicle nail, including screw body 1, the screw are proposed as shown in Figure 1
The outer surface of body 1 is provided with attaching nut 3, the end of the attaching nut 3 provided with fastening thread 2, the end of the screw body 1
Portion is provided with a U-shaped drawing bar fastener 4, and the attaching nut 3 rotates groove 5 with the junction of U-shaped drawing bar fastener 4 provided with fastener,
The fastener, which is rotated, is provided with fastener fixing hole 6 and attaching nut's flat mouth screw socket 7 in groove 5, as shown in Figure 2；The U-shaped traction
Offered in rod fastener 4 in a drawing bar neck 8, the drawing bar neck 8 provided with the company that can be connected with fastener fixing hole 6
Fitting 9, the present embodiment sets connector 9 to be screw, as shown in figure 3, the side of drawing bar neck 9 provided with can be embedded within,
And the drawing bar fastening bolt 10 in the U-shaped drawing bar fastener 4, it is flat that the end of the drawing bar fixing bolt 10 offers one
Mouth screw socket 11, as shown in Figure 3.
The screw body 1 is set to integral structure with attaching nut 3, it is ensured that between screw body 1 and attaching nut 3
Stable connection so that screw body is stabilized in pedicle of vertebral arch, improves security performance, be conducive to Rehabilitation.
Connection is engaged by thread between the drawing bar fastening bolt 10 and U-shaped drawing bar fastener 4, facilitates drawing bar
Insertion, on the one hand ensures to be prevented effectively from the secondary injury to pedicle of vertebral arch, on the other hand ensures the tightness of screw body 1.
When the present invention is used：First pass through attaching nut's flat mouth screw socket 7 pedicle nail body 1 is all fixedly mounted, so
The angle of the opening of drawing bar neck 8 is adjusted afterwards, after adjusting, by connector 9 by U-shaped drawing bar fastener 4 and attaching nut 3
Drawing bar, is placed on the inside of drawing bar neck 8 by fixing-stable after fixing, drawing bar is fixed into spiral shell by flat mouth screw socket 11
Bolt 10 is screwed in drawing bar neck 8, and by drawing bar fixation, realizes the fixation of screw body 1.
Certainly, simply the preferred embodiments of the disclosure is described in detail with reference to accompanying drawing above, not with this
The practical range of the present invention is limited, the equivalence changes that all principles under this invention, construction and structure are made all should be covered by this
In the protection domain of invention.
Claims (3)
1. a kind of pedicle nail, including the outer surface of screw body (1), the screw body (1) are provided with fastening thread (2), its
It is characterised by：The end of the screw body (1) is provided with attaching nut (3), and the end of the attaching nut (3) is provided with a U-shaped
Drawing bar fastener (4), the attaching nut (3) rotates groove (5) with U-shaped drawing bar fastener (4) junction provided with fastener, described
Fastener, which is rotated, is provided with fastener fixing hole (6) and attaching nut's flat mouth screw socket (7) in groove (5)；The U-shaped drawing bar fastener
(5) offered in and be provided with what can be connected with fastener fixing hole (6) in a drawing bar neck (8), the drawing bar neck (8)
Connector (9), drawing bar neck (8) side is provided with the traction that can be embedded within and in U-shaped drawing bar fastener (5)
Rod fastening bolt (10), the end of the drawing bar fixing bolt (10) offers a flat mouth screw socket (11).
2. a kind of pedicle nail according to claim 1, it is characterised in that：The screw body (1) and attaching nut (3)
It is set to integral structure.
3. a kind of pedicle nail according to claim 1 or 2, it is characterised in that：The drawing bar fastening bolt (10) and U
Engaged and connected by thread between shape drawing bar fastener (4).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201710703310.3A CN107320167A (en) | 2017-08-16 | 2017-08-16 | A kind of pedicle nail |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201710703310.3A CN107320167A (en) | 2017-08-16 | 2017-08-16 | A kind of pedicle nail |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN107320167A true CN107320167A (en) | 2017-11-07 |
Family
ID=60201193
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201710703310.3A Pending CN107320167A (en) | 2017-08-16 | 2017-08-16 | A kind of pedicle nail |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN107320167A (en) |
Citations (8)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| DE4330837A1 (en) * | 1993-09-11 | 1995-03-16 | Michael Hahn | Pedicle screw and internal fixator |
| US20050192571A1 (en) * | 2004-02-27 | 2005-09-01 | Custom Spine, Inc. | Polyaxial pedicle screw assembly |
| US20070055257A1 (en) * | 2005-06-30 | 2007-03-08 | Alex Vaccaro | Cannulated screw access system |
| US20100174313A1 (en) * | 2009-01-03 | 2010-07-08 | Custom Spine, Inc. | Sealed Lubrication System and Method for Dynamic Stabilization System |
| CN102028531A (en) * | 2010-12-20 | 2011-04-27 | 常州市康辉医疗器械有限公司 | Dynamic scoliosis correction device |
| CN205163221U (en) * | 2015-11-30 | 2016-04-20 | 苏州微创脊柱创伤医疗科技有限公司 | Split type medical screw |
| CN205849523U (en) * | 2016-05-06 | 2017-01-04 | 常州集硕医疗器械有限公司 | Single shaft short-tail shape pedicle nail |
| CN208659521U (en) * | 2017-08-16 | 2019-03-29 | 罗登德 | A kind of pedicle nail |
-
2017
- 2017-08-16 CN CN201710703310.3A patent/CN107320167A/en active Pending
Patent Citations (8)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| DE4330837A1 (en) * | 1993-09-11 | 1995-03-16 | Michael Hahn | Pedicle screw and internal fixator |
| US20050192571A1 (en) * | 2004-02-27 | 2005-09-01 | Custom Spine, Inc. | Polyaxial pedicle screw assembly |
| US20070055257A1 (en) * | 2005-06-30 | 2007-03-08 | Alex Vaccaro | Cannulated screw access system |
| US20100174313A1 (en) * | 2009-01-03 | 2010-07-08 | Custom Spine, Inc. | Sealed Lubrication System and Method for Dynamic Stabilization System |
| CN102028531A (en) * | 2010-12-20 | 2011-04-27 | 常州市康辉医疗器械有限公司 | Dynamic scoliosis correction device |
| CN205163221U (en) * | 2015-11-30 | 2016-04-20 | 苏州微创脊柱创伤医疗科技有限公司 | Split type medical screw |
| CN205849523U (en) * | 2016-05-06 | 2017-01-04 | 常州集硕医疗器械有限公司 | Single shaft short-tail shape pedicle nail |
| CN208659521U (en) * | 2017-08-16 | 2019-03-29 | 罗登德 | A kind of pedicle nail |
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