CN103908331A - Pedicle screw for minimally invasive surgery - Google Patents
Pedicle screw for minimally invasive surgery Download PDFInfo
- Publication number
- CN103908331A CN103908331A CN201410130377.9A CN201410130377A CN103908331A CN 103908331 A CN103908331 A CN 103908331A CN 201410130377 A CN201410130377 A CN 201410130377A CN 103908331 A CN103908331 A CN 103908331A
- Authority
- CN
- China
- Prior art keywords
- tail
- short
- screw base
- long
- nail
- 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.)
- Granted
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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
- A61B17/00234—Surgical instruments, devices or methods, e.g. tourniquets for minimally invasive surgery
Abstract
The invention provides a technical scheme of a pedicle screw for minimally invasive surgery. The technical scheme includes that the pedicle screw comprises a U-shaped screw base and a hollow screw connected with the U-shaped screw base. A compacting cover in threaded connection with the U-shaped screw base and long tail wings are arranged in the U-shaped screw base. A short screw base tail is integrally connected to each of two side walls of the U-shaped screw base; broken grooves are formed between the two side walls of the U-shaped screw base and the short screw base tails respectively; same threads in threaded connection with the compacting cover on the U-shaped screw base are arranged on the two short screw base tails; a mounting hole is formed in each short screw base tail; the detachable long tail wings are connected to the short screw base tails respectively; inner-wall radian of the long tail wings is matched with outer-wall radian of the short screw base tails; clamping edges are arranged at the ends, connected with the short screw base tails, of the long tail wings; each clamping edge is matched with two side end faces of the corresponding short screw base tail; elastic pieces formed by elastic piece grooves in an encircling manner are arranged on the long tail wings; fastening heads matched with mounting holes of the short screw base tails are arranged on the elastic pieces.
Description
Technical field
What the present invention relates to is a kind of orthopaedics medical surgical instrument, especially a kind of Minimally Invasive Surgery pedicle nail.
Background technology
In the prior art, the technical scheme approaching the most with the application is that the applicant applies for, and to authorize disclosed application number by Patent Office of State Intellectual Property Office be 201220624213.8 utility model patent, this patent discloses a kind of technical scheme of pedicle screw of percutaneous placement, this scheme adopts the long-tail wing on the two side of pedicle of vertebral arch screw stapling seat, and there is snap slot between the two side of staple seat and the long-tail wing, this structure, owing to there being the existence of the long-tail wing, just can realize the Minimally Invasive Surgery that can carry out at skin outward in the time of operation, the postoperative taking-up that the long-tail wing can be fractureed.But the long-tail wing of this structure can only once use rear discarded, and this not only causes waste, has also increased operation cost, and this is the existing weak point of prior art.
Summary of the invention
Technical problem to be solved by this invention, be exactly for the existing deficiency of prior art, and the technical scheme of a kind of Minimally Invasive Surgery pedicle nail is provided, this scheme adopts respectively increases the removable long-tail wing on a nail seat short-tail and nail seat short-tail on the staple seat two side of pedicle screw, this still can realize the Minimally Invasive Surgery that skin carries out outward, after operation, nail seat short-tail can separate with staple seat, and together take out with the long-tail wing, the just nail seat short-tail of discarding after operation, and the long-tail wing still can reuse, both saved resource, reduce again operation cost, reduce patient's surgery cost.
This programme is achieved by the following technical measures: Minimally Invasive Surgery pedicle nail, include staple seat and the hollow screw being connected with staple seat, in staple seat, there is the friction top being threaded, and the long-tail wing, the feature of this programme is to be respectively connected with nail seat short-tail on described staple seat two side, between described staple seat two side and described each nail seat short-tail, there is snap slot, on two described nail seat short-tails, there is the identical screw thread being threaded with the friction top on staple seat, on two described nail seat short-tails, also respectively there is an installing hole, on two described nail seat short-tails, be also respectively connected with the long-tail wing of energy dismounting, the inwall radian of the described long-tail wing matches with the outer wall radian of described nail seat short-tail, link at the described long-tail wing and nail seat short-tail has clamping limit, match with the both sides end face of described nail seat short-tail in this clamping limit, the shell fragment being surrounded by shell fragment groove in addition on the described long-tail wing has the dop matching with installing hole on described nail seat short-tail on this shell fragment.The concrete feature of this programme also has, and the length of described nail seat short-tail is between 5-20 millimeter.On the described long-tail wing, also has long-tail foramen alare.Described long-tail foramen alare is rectangular opening.What the described long-tail wing adopted is that medical stainless steel material or medical macromolecular materials are made.What the installing hole on described nail seat short-tail adopted is circular hole.
The beneficial effect of this programme can be learnt according to the narration to such scheme, due in this scheme, on staple seat two side, be respectively connected with nail seat short-tail, between described staple seat two side and described each nail seat short-tail, there is snap slot, on two described nail seat short-tails, there is the identical screw thread being threaded with the friction top on staple seat, on two described nail seat short-tails, also respectively there is an installing hole, on two described nail seat short-tails, be also respectively connected with the long-tail wing of energy dismounting; The inwall radian of the described long-tail wing matches with the outer wall radian of described nail seat short-tail, link at the described long-tail wing and nail seat short-tail has clamping limit, match with the both sides end face of described nail seat short-tail in this clamping limit, the shell fragment being surrounded by shell fragment groove in addition on the described long-tail wing has the dop matching with installing hole on described nail seat short-tail on this shell fragment.This structure, on staple seat two side, there is broken nail seat short-tail, on nail seat short-tail, be fitted with the long-tail wing, therefore can realize the Minimally Invasive Surgery that skin carries out outward, after operation, nail seat short-tail can separate with staple seat, and together take out with the long-tail wing, the just nail seat short-tail of discarding after operation, and the long-tail wing is still reusable, this had both saved resource, reduce again operation cost, also reduced patient's surgery cost.As can be seen here, the present invention compared with prior art, has outstanding substantive distinguishing features and significant progressive, and the beneficial effect of its enforcement is also apparent.
Brief description of the drawings
Fig. 1 is the entity structure schematic diagram of the specific embodiment of the invention.
Fig. 2 is the part sectional structure schematic diagram of the specific embodiment of the invention.
Fig. 3 is that part sectional structure schematic diagram is looked on a left side of Fig. 2.
Fig. 4 is the A-A sectional structure schematic diagram of Fig. 2.
In figure, 1 is hollow screw, and 2 is staple seat, and 3 is friction top, and 4 is snap slot, and 5 is nail seat short-tail, and 6 is shell fragment, and 7 is shell fragment groove, and 8 is clamping limit, and 9 is the long-tail wing, and 10 is long-tail foramen alare, and 11 is installing hole, and 12 is dop.
Detailed description of the invention
For clearly demonstrating the technical characterstic of this programme, below by a detailed description of the invention, and in conjunction with its accompanying drawing, this programme is set forth.
Can find out by accompanying drawing, the Minimally Invasive Surgery of this programme has staple seat 2 and the hollow screw 1 being connected with staple seat 2 with pedicle nail, in staple seat 2, there is the friction top 3 being threaded, and the long-tail wing 9, this programme is to be respectively connected with nail seat short-tail 5 on described staple seat 2 two sides, between described staple seat 2 two sides and described each nail seat short-tail 5, there is snap slot 4, on two described nail seat short-tails 5, there is the identical screw thread being threaded with the friction top 3 on staple seat 2, on two described nail seat short-tails 5, also respectively there is an installing hole 11, what this installing hole 11 adopted is circular hole, on two described nail seat short-tails 5, be also respectively connected with the long-tail wing 9 of energy dismounting.The inwall radian of the described long-tail wing 9 matches with the outer wall radian of described nail seat short-tail 5, there is clamping limit 8 at the described long-tail wing 9 and the link of nail seat short-tail 5, match with the both sides end face of described nail seat short-tail 5 in this clamping limit 8, the shell fragment 6 being surrounded by shell fragment groove 7 in addition on the described long-tail wing 9 has the dop 12 matching with installing hole 11 on described nail seat short-tail 5 on this shell fragment 6.The length of described nail seat short-tail 5 is between 5-20 millimeter, and what this detailed description of the invention adopted is 15 millimeters.On the described long-tail wing 9 also have long-tail foramen alare 10, this long-tail foramen alare 10 be rectangular opening, be in operation for the connection between many pedicle nails and fix.What the described long-tail wing 9 adopted is that medical stainless steel material or medical macromolecular materials are made, and what this detailed description of the invention adopted is medical stainless steel material.
The present invention is not limited in above-mentioned detailed description of the invention, and variation, remodeling, interpolation or replacement that those of ordinary skill in the art make in essential scope of the present invention also should belong to protection scope of the present invention.
Claims (6)
1. a Minimally Invasive Surgery pedicle nail, include staple seat and the hollow screw being connected with staple seat, in staple seat, there is the friction top being threaded, and the long-tail wing, it is characterized in that: on described staple seat two side, be respectively connected with nail seat short-tail, between described staple seat two side and described each nail seat short-tail, there is snap slot, on two described nail seat short-tails, there is the identical screw thread being threaded with the friction top on staple seat, on two described nail seat short-tails, also respectively there is an installing hole, on two described nail seat short-tails, be also respectively connected with the long-tail wing of energy dismounting, the inwall radian of the described long-tail wing matches with the outer wall radian of described nail seat short-tail, link at the described long-tail wing and nail seat short-tail has clamping limit, match with the both sides end face of described nail seat short-tail in this clamping limit, the shell fragment being surrounded by shell fragment groove in addition on the described long-tail wing has the dop matching with installing hole on described nail seat short-tail on this shell fragment.
2. pedicle nail according to claim 1, is characterized in that: the length of described nail seat short-tail is between 5-20 millimeter.
3. pedicle nail according to claim 1, is characterized in that: on the described long-tail wing, also have long-tail foramen alare.
4. according to the pedicle nail described in claim 1 or 3, it is characterized in that: described long-tail foramen alare is rectangular opening.
5. according to the pedicle nail described in claim 1 or 3, it is characterized in that: what the described long-tail wing adopted is that medical stainless steel material or medical macromolecular materials are made.
6. pedicle nail according to claim 1 and 2, is characterized in that: what the installing hole on described nail seat short-tail adopted is circular hole.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201410130377.9A CN103908331B (en) | 2014-04-02 | 2014-04-02 | A kind of Minimally Invasive Surgery pedicle nail |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201410130377.9A CN103908331B (en) | 2014-04-02 | 2014-04-02 | A kind of Minimally Invasive Surgery pedicle nail |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN103908331A true CN103908331A (en) | 2014-07-09 |
| CN103908331B CN103908331B (en) | 2015-10-28 |
Family
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201410130377.9A Active CN103908331B (en) | 2014-04-02 | 2014-04-02 | A kind of Minimally Invasive Surgery pedicle nail |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN103908331B (en) |
Cited By (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104434292A (en) * | 2014-12-24 | 2015-03-25 | 山东威高骨科材料股份有限公司 | Minimally invasive percutaneous pedicle screw with detachable tail length adjusting arms |
| CN104905872A (en) * | 2015-05-12 | 2015-09-16 | 山东威高骨科材料股份有限公司 | Tong head of fog type tongs |
| CN106473783A (en) * | 2016-11-22 | 2017-03-08 | 常州华森医疗器械有限公司 | Pedicle of vertebral arch fixed system is with strutting piece |
| 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 |
| CN113384336A (en) * | 2021-05-25 | 2021-09-14 | 上海三友医疗器械股份有限公司 | Pedicle screw extension assembly and method of use |
Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US20060200132A1 (en) * | 2005-03-04 | 2006-09-07 | Chao Nam T | Instruments and methods for manipulating a vertebra |
| EP2221012A1 (en) * | 2009-02-20 | 2010-08-25 | Biedermann Motech GmbH & Co. KG | Receiving part for receiving a rod for coupling the rod to a bone anchoring element and a bone anchoring device with such a receiving part |
| CN202637080U (en) * | 2012-07-06 | 2013-01-02 | 常州市康辉医疗器械有限公司 | Minimally invasive hollow pedicle screw |
| CN203001091U (en) * | 2012-11-23 | 2013-06-19 | 山东冠龙医疗用品有限公司 | Percutaneous placement pedicle screw |
| CN203829026U (en) * | 2014-04-02 | 2014-09-17 | 山东冠龙医疗用品有限公司 | Pedicle screw for minimally-invasive surgery |
-
2014
- 2014-04-02 CN CN201410130377.9A patent/CN103908331B/en active Active
Patent Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US20060200132A1 (en) * | 2005-03-04 | 2006-09-07 | Chao Nam T | Instruments and methods for manipulating a vertebra |
| EP2221012A1 (en) * | 2009-02-20 | 2010-08-25 | Biedermann Motech GmbH & Co. KG | Receiving part for receiving a rod for coupling the rod to a bone anchoring element and a bone anchoring device with such a receiving part |
| CN202637080U (en) * | 2012-07-06 | 2013-01-02 | 常州市康辉医疗器械有限公司 | Minimally invasive hollow pedicle screw |
| CN203001091U (en) * | 2012-11-23 | 2013-06-19 | 山东冠龙医疗用品有限公司 | Percutaneous placement pedicle screw |
| CN203829026U (en) * | 2014-04-02 | 2014-09-17 | 山东冠龙医疗用品有限公司 | Pedicle screw for minimally-invasive surgery |
Cited By (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104434292A (en) * | 2014-12-24 | 2015-03-25 | 山东威高骨科材料股份有限公司 | Minimally invasive percutaneous pedicle screw with detachable tail length adjusting arms |
| CN104905872A (en) * | 2015-05-12 | 2015-09-16 | 山东威高骨科材料股份有限公司 | Tong head of fog type tongs |
| CN106473783A (en) * | 2016-11-22 | 2017-03-08 | 常州华森医疗器械有限公司 | Pedicle of vertebral arch fixed system is with strutting piece |
| 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 |
| CN113384336A (en) * | 2021-05-25 | 2021-09-14 | 上海三友医疗器械股份有限公司 | Pedicle screw extension assembly and method of use |
| CN113384336B (en) * | 2021-05-25 | 2023-01-13 | 上海三友医疗器械股份有限公司 | Pedicle screw extension assembly and method of use |
Also Published As
| Publication number | Publication date |
|---|---|
| CN103908331B (en) | 2015-10-28 |
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| C06 | Publication | ||
| PB01 | Publication | ||
| C10 | Entry into substantive examination | ||
| SE01 | Entry into force of request for substantive examination | ||
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| CB03 | Change of inventor or designer information |
Inventor after: Shen Weibo Inventor after: Lu Xuecheng Inventor before: Hao Zaichen Inventor before: Shen Weibo Inventor before: Lu Xuecheng Inventor before: Zhao Tianming |
|
| COR | Change of bibliographic data |