CN203458462U - Spinal pedicle screw - Google Patents
Spinal pedicle screw Download PDFInfo
- Publication number
- CN203458462U CN203458462U CN201320563161.2U CN201320563161U CN203458462U CN 203458462 U CN203458462 U CN 203458462U CN 201320563161 U CN201320563161 U CN 201320563161U CN 203458462 U CN203458462 U CN 203458462U
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- CN
- China
- Prior art keywords
- nail seat
- screw
- pedicle screw
- ball screw
- shaped groove
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- 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
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Abstract
A spinal pedicle screw comprises a ball screw, a gasket, a clamp ring and a screw base, wherein the ball screw is arranged in the screw base; the ball screw is provided with a self-tapping thread; the screw base is provided with a U-shaped groove; an internal thread is formed in the U-shaped groove; and an arc-shaped groove corresponding to a pull reposition operation tool is formed in the top end of the outside of the screw seat. The spinal pedicle screw is provided with special ring grooves and counterbored holes for various operations such as pulling, reposition orthopedy and the like, so that the operation process can be facilitated, the operation time is reduced, the use is convenient and concise, and the spinal pedicle screw is an important part of the posterior spinal operation.
Description
Technical field
This utility model relates to technical field of medical instruments, particularly a kind of pedicle screw for orthopaedics Via Posterior Spinal Approach nail-stick system.
Background technology
At present, in pedicle screw, fix and become topmost form in the interior technique for fixing of thoracic and lumbar vertebral posterior, be widely used in the sick and wounded treatments of a series of spinal columns such as wound, regression, tumor, deformity and infection.It is fixing that this operation need to be used spinal stabilization system to carry out in vertebral body conventionally on spinal column, at the two ends of spinal rod, pedicle screw is installed respectively, and spinal stabilization system is commonly called as nail-stick system.In addition, when human spine needs malformation correction, generally by operation, coordinate horizontal connected device and pitman to use pedicle screw, pedicle screw therefrom plays fixedly vertebral body effect.Pedicle screw is connected with pitman, and pitman can copy human spine's physiological curve to carry out pre-bending with curved rod pincers, can recover spinal column physiology front recessed after installation.Between two pitmans, with horizontal connected device, connect, play and strengthen being fixedly connected with excellent effect, nail rod and horizontal connected device are become one.Then further correct deformity of spine, reach good reset.Yet current pedicle screw function singleness, can not well coordinate lift, reset, strut, pressurization, the various operations such as orthopedic, therefore still have further improved necessity.
Utility model content
The purpose of this utility model is to provide a kind of pedicle screw, it is simple in structure, diverse in function, both can meet the requirement of biomechanics, possesses again better operational suitability, more to be applicable to clinical practice, and to reset and orthopedic needs in order meeting, its head also has the long-tail shape design of reset and lifting function.
For achieving the above object, this utility model is taked following technical scheme:
A pedicle screw, it comprises ball screw, collar, pad and nail seat; Wherein
The bulb of this ball screw is fixed in nail seat by embodiment in which top gasket and bottom collar, and ball screw can be around screw axis 360 ° of rotations in nail seat; This ball screw can be realized 60 ° with interior beat in this nail seat; Preferably, this ball screw nail tip has self tapping groove.
This nail seat has U-shaped groove, for putting pitman; This U-shaped groove inside is provided with female thread; The outer domed end of this nail seat is provided with the annular groove corresponding with lifting reattachment surgery instrument.
Further, described nail seat outside is provided with the counterbore corresponding with lifting reattachment surgery instrument.
Further, the U-shaped groove side of described nail seat is provided with the excellent U-shaped groove of putting being connected with orthomorphia instrument.
Further, the female thread being provided with in described nail seat, tooth form can be rectangular thread, negative angle trapezoidal thread etc.
Further, described nail seat can be long-tail nail seat, this long-tail nail seat is U-shaped structure, inside is provided with screw thread and corresponding with orthomorphia instrument puts excellent groove, outside is provided with the annular groove corresponding with lifting reattachment surgery instrument and counterbore and the annular groove that fractures, after pitman is fixing in clinical use, can fracture from the annular groove that fractures.
Further, the bulb of described ball screw is provided with anti-skidding annular groove.
Further, described ball screw screw thread is bone thread.
Further, described nail seat, pad, collar, ball screw surface attachment oxide-film.
The beneficial effects of the utility model are: this utility model pedicle screw is with various operations (lift, reset, orthopedic etc.) special-purpose annular groove and counterbore, can facilitate operation process, reduce operating time, easy to use succinct, be the vitals of posterior spinal operation.
Accompanying drawing explanation
Fig. 1 is the structural representation of this utility model pedicle screw.
Fig. 2 is that the nail seat of this utility model pedicle screw is the structural representation of long-tail nail seat.
Fig. 3 is that this utility model pedicle screw is the structural representation of Universal pedicle screw.
Fig. 4 is the structural representation of this utility model pedicle screw ball screw
The specific embodiment
Below only with embodiment, the enforcement aspect that this utility model is possible is described, however not in order to limit the category of this utility model institute wish protection, first give chat bright.
As shown in Figure 1, this utility model provides a kind of pedicle screw, and it comprises ball screw 1 and nail seat 2, and this ball screw 1 is located in this nail seat 2, and this ball screw 1 has tapping screw thread 11, is preferably bone thread.The general tapping screw thread of comparing, bone thread, for professional medical designs, can better be screwed into skeleton.In order further to reduce pedicle screw, be screwed into the torsion needing, this ball screw 1 tip is provided with self tapping groove 12.This nail seat 2 has U-shaped groove, and this U-shaped groove is used for placing pitman, puts when nail, and puts nail device and is used in conjunction with; This U-shaped groove inside is provided with female thread, and tooth form can be rectangular thread, negative angle trapezoidal thread etc., coordinates with corresponding plug screw, and locking pitman, in U-shaped groove, while putting nail, and is put nail device and is used in conjunction with.
As shown in Figure 1, in order to coordinate the use that lifts reattachment surgery instrument, the outer domed end of this nail seat 2 is provided with corresponding with it annular groove 21.In addition, can also be provided with the counterbore corresponding with lifting reattachment surgery instrument 22 in these nail seat 2 outsides.
As shown in Figure 1, in order to coordinate the use of orthomorphia instrument, the U-shaped groove side of this nail seat 2 is provided with it the corresponding excellent U-shaped groove 23 of putting.
The above is galianconism pedicle screw, yet as shown in Figure 2, in this nail seat, it can be long-tail nail seat 3, can be changed into long-armed pedicle screw, this long-tail nail seat 3 is also U-shaped structure, inside is also provided with screw thread and the groove corresponding with orthomorphia instrument, and outside is provided with the annular groove corresponding with lifting reattachment surgery instrument and counterbore and the annular groove 31 that fractures.
As shown in Figure 3, Figure 4, this utility model pedicle screw is preferably Universal pedicle screw, and this ball screw 1 one end has bulb 13, is located at rotationally this nail seat 2 bottoms.The bulb of this ball screw is fixed in nail seat by embodiment in which top gasket 5 and bottom collar 4, ball screw can around screw axis in nail seat 360 ° rotation and realize 60 ° with interior beat.Further, the bulb of this ball screw is provided with anti-skidding annular groove 131.
In order to increase service life of the present utility model, described nail seat, pad, collar, ball screw surface attachment oxide-film.
By above-mentioned, be not difficult to find that this utility model advantage is as follows:
1, this utility model can be realized the function (lift, reset, orthopedic etc.) of multiple operation.
2, pedicle screw of the present utility model can be done the highly difficult operations such as orthopedic, saves operating time, allows doctor complete operation process in the shortest time, increases operation safety.
3, this utility model pedicle screw ball screw self tapping groove increases relief angle, reduce pedicle screw and be screwed into needed torsion in human body process, can make the light and smooth and easy screw-in of pedicle screw vertebral body, at utmost decompose screw self stress, increase the going out property of resistance to plucking of pedicle screw.
4, this utility model is controlled and is threaded into cutter position, guarantees that plug screw can easily be screwed into.
5, this utility model adopts alap incisura design, and does not affect operation process.
6, this uses novel employing negative angle trapezoidal thread or rectangular thread, guarantees to keep coupling mechanism force after plug screw is screwed into U-shaped nail seat locking pitman.
This utility model is limited with described claim.But based on this, those of ordinary skill in the art can make all obvious variations or change, all should be within main spirits of the present utility model and protection domain.
Claims (8)
1. a pedicle screw, is characterized in that, it comprises ball screw, collar, pad and nail seat, wherein
The bulb of this ball screw is fixed in this nail seat by embodiment in which top gasket and bottom collar, and this ball screw can be around screw axis 360 ° of rotations in this nail seat; This ball screw can be realized 60 ° with interior beat in this nail seat; This nail seat has for putting the U-shaped groove of pitman, and this U-shaped groove inside is provided with female thread, and female thread tooth form is that rectangle or negative angle are trapezoidal; The outer domed end of this nail seat is provided with the annular groove corresponding with lifting reattachment surgery instrument.
2. pedicle screw according to claim 1, is characterized in that: described nail seat outside is provided with the counterbore corresponding with lifting reattachment surgery instrument.
3. pedicle screw according to claim 1, is characterized in that: the U-shaped groove side of described nail seat is provided with the excellent U-shaped groove of putting being connected with orthomorphia instrument.
4. pedicle screw according to claim 1, is characterized in that: described ball screw tip is provided with self tapping groove.
5. pedicle screw according to claim 1, it is characterized in that: described nail seat is long-tail nail seat, this long-tail nail seat is U-shaped structure, inside is provided with screw thread and corresponding with orthomorphia instrument puts excellent groove, and outside is provided with the annular groove corresponding with lifting reattachment surgery instrument and counterbore and the annular groove that fractures.
6. pedicle screw according to claim 1, is characterized in that: described ball screw has tapping screw thread, and is bone thread.
7. pedicle screw according to claim 1, is characterized in that: the bulb of described ball screw is provided with anti-skidding annular groove.
8. pedicle screw according to claim 1, is characterized in that: described nail seat, pad, collar, ball screw surface attachment oxide-film.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201320563161.2U CN203458462U (en) | 2013-09-11 | 2013-09-11 | Spinal pedicle screw |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201320563161.2U CN203458462U (en) | 2013-09-11 | 2013-09-11 | Spinal pedicle screw |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN203458462U true CN203458462U (en) | 2014-03-05 |
Family
ID=50170844
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201320563161.2U Expired - Lifetime CN203458462U (en) | 2013-09-11 | 2013-09-11 | Spinal pedicle screw |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN203458462U (en) |
Cited By (9)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104873309A (en) * | 2015-06-02 | 2015-09-02 | 北京纳通科技集团有限公司 | Pedicle screw fixation system |
| CN105125275A (en) * | 2015-09-16 | 2015-12-09 | 常州市康辉医疗器械有限公司 | Semi-opened and semi-closed spine ilium bolt |
| CN105708535A (en) * | 2016-01-03 | 2016-06-29 | 邓宇 | Posterior minimally invasive screw-rod system for thoracolumbar vertebral fracture |
| CN108294818A (en) * | 2018-02-07 | 2018-07-20 | 北京理贝尔生物工程研究所有限公司 | A kind of minimally invasive solid pedicle screw |
| CN109044514A (en) * | 2018-09-19 | 2018-12-21 | 迪恩医疗科技有限公司 | Novel two-in-one spine nail, unloading piece pincers, conversion spanner and its application method |
| CN109171924A (en) * | 2018-08-31 | 2019-01-11 | 厉锋 | Fixed appliance in lumbar vertebral posterior |
| CN110123431A (en) * | 2019-05-14 | 2019-08-16 | 山东新华联合骨科器材股份有限公司 | One kind is autotomyed the fixed device of screw Universal pedicle screw |
| CN110123434A (en) * | 2019-05-30 | 2019-08-16 | 上海拉结科技有限责任公司 | The orthopedic internal fixation system of children's backbone guiding growth and spine correcting method |
| CN111248992A (en) * | 2019-05-05 | 2020-06-09 | 浙江德康医疗器械有限公司 | Multifunctional screw |
-
2013
- 2013-09-11 CN CN201320563161.2U patent/CN203458462U/en not_active Expired - Lifetime
Cited By (10)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104873309A (en) * | 2015-06-02 | 2015-09-02 | 北京纳通科技集团有限公司 | Pedicle screw fixation system |
| CN104873309B (en) * | 2015-06-02 | 2017-07-11 | 北京纳通科技集团有限公司 | A kind of pedicle screw fixation system |
| CN105125275A (en) * | 2015-09-16 | 2015-12-09 | 常州市康辉医疗器械有限公司 | Semi-opened and semi-closed spine ilium bolt |
| CN105708535A (en) * | 2016-01-03 | 2016-06-29 | 邓宇 | Posterior minimally invasive screw-rod system for thoracolumbar vertebral fracture |
| CN108294818A (en) * | 2018-02-07 | 2018-07-20 | 北京理贝尔生物工程研究所有限公司 | A kind of minimally invasive solid pedicle screw |
| CN109171924A (en) * | 2018-08-31 | 2019-01-11 | 厉锋 | Fixed appliance in lumbar vertebral posterior |
| CN109044514A (en) * | 2018-09-19 | 2018-12-21 | 迪恩医疗科技有限公司 | Novel two-in-one spine nail, unloading piece pincers, conversion spanner and its application method |
| CN111248992A (en) * | 2019-05-05 | 2020-06-09 | 浙江德康医疗器械有限公司 | Multifunctional screw |
| CN110123431A (en) * | 2019-05-14 | 2019-08-16 | 山东新华联合骨科器材股份有限公司 | One kind is autotomyed the fixed device of screw Universal pedicle screw |
| CN110123434A (en) * | 2019-05-30 | 2019-08-16 | 上海拉结科技有限责任公司 | The orthopedic internal fixation system of children's backbone guiding growth and spine correcting method |
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Granted publication date: 20140305 |