CN2486118Y - U shape pediculus arcus vertebrae nail hook device - Google Patents
U shape pediculus arcus vertebrae nail hook device Download PDFInfo
- Publication number
- CN2486118Y CN2486118Y CN 01232169 CN01232169U CN2486118Y CN 2486118 Y CN2486118 Y CN 2486118Y CN 01232169 CN01232169 CN 01232169 CN 01232169 U CN01232169 U CN 01232169U CN 2486118 Y CN2486118 Y CN 2486118Y
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- CN
- China
- Prior art keywords
- shaped
- shaped structure
- snap ring
- pitman
- jackscrew
- 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 - Fee Related
Links
- 241000517325 Pediculus Species 0.000 title 1
- 210000000988 bone and bone Anatomy 0.000 abstract description 3
- 230000035876 healing Effects 0.000 abstract description 2
- 208000015181 infectious disease Diseases 0.000 abstract description 2
- 238000002513 implantation Methods 0.000 abstract 1
- 238000009434 installation Methods 0.000 abstract 1
- 239000011800 void material Substances 0.000 abstract 1
- 238000010276 construction Methods 0.000 description 2
- 238000002684 laminectomy Methods 0.000 description 2
- 238000011017 operating method Methods 0.000 description 2
- 230000000399 orthopedic effect Effects 0.000 description 2
- 206010058907 Spinal deformity Diseases 0.000 description 1
- 208000007103 Spondylolisthesis Diseases 0.000 description 1
- 230000009286 beneficial effect Effects 0.000 description 1
- 230000000295 complement effect Effects 0.000 description 1
- 230000003467 diminishing effect Effects 0.000 description 1
- 201000010099 disease Diseases 0.000 description 1
- 208000037265 diseases, disorders, signs and symptoms Diseases 0.000 description 1
- 238000005516 engineering process Methods 0.000 description 1
- 239000007943 implant Substances 0.000 description 1
- 239000004570 mortar (masonry) Substances 0.000 description 1
- 206010041569 spinal fracture Diseases 0.000 description 1
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- Surgical Instruments (AREA)
- Prostheses (AREA)
Abstract
A U-shaped pedical screw-hook-rod device for orthopaedics comprises a U-shaped structure 1 at upper part thereof, a top thread 2 therein, a clip ring 3 fitted outside, and a screw, arc hook or shovel-shaped hook structure at lower part thereof. By screwing the top thread 2 to tightly press a connection rod 4 in the U-shaped structure, and allowing the U-shaped structure to expand and fasten the clip ring 2; or by screwing a special clip ring 9 with inner thread to make the U-shaped structure shrink and tightly hoop the top thread, the connection rod 4 can be stably fixed. The utility model has the advantages of convenient installation, small size and space, low-incisura, small residual void cavity, low infection rate, large bone implantation bed, and good bone healing effect, which can be widely used in spine orthopaedics.
Description
Technical field
This utility model relates to a kind of orthopedics (orthopaedics) and uses medical treatment device, especially a kind of U-shaped pedicle nail hook device.
Background technology
Utility model patent ZL99217498.8 discloses the Rachiocampis correction inner fixer, in this patent, adopted fixing or universal opening LOCATION OF PEDICLE SCREW FIXATION on each vertebra of spinal column, between screw afterbody and the nut pestle mortar structure, one obturator is arranged in the nut, be used for fixing pitman wherein.Utility model patent ZL99217497.X discloses a kind of lumbar spondylolisthesis inner fixer that resets, and the angle screw in this patent is uncovered structure, in a skewed slot is arranged, be the slide block obturator in the groove, be used for fixing pitman wherein.In above-mentioned two patents said " obturator " in clinical use, still exist not too convenient.
Summary of the invention
The purpose of this utility model is that above-mentioned fixed structure is improved, and provides a kind of and is easy to more to install, reliable and stable U-shaped pedicle nail hook device of new generation.
The purpose of this utility model is achieved in that
The uncovered structure of U type is adopted on this utility model top, and built-in pitman screws in a jackscrew then, overcoat one snap ring, and its underpart can be a bolt structure, also can be arc shaped hook or spade hook structure.By screwing jackscrew, utilize the active force of jackscrew to compress pitman in the uncovered structure of U type, the U-shaped structure is expanded and the stretching snap ring.Perhaps the U-shaped structure is tightened up, reach the purpose of fixedly connected rod by screwing tapped special snap ring.
A kind of U-shaped pedicle nail hook device, which comprises at least fixation of pedicle part U-shaped structure 1, jackscrew 2, snap ring 3, nail hook portion and pitman 4 etc., pitman 4 places U-shaped structure 1, and jackscrew 2 is arranged in the top of U-shaped structure 1 pitman 4, and snap ring (3) is enclosed within outside the U-shaped structure 1.
Described U-shaped structure 1 band female thread also can be with external screw thread simultaneously.
Described jackscrew 2 has external screw thread.
Described jackscrew 2 is cylindrical, also can be bullet.
The tapering of described bullet is at 0-15 °.
Described snap ring 3 has female thread, internal diameter to diminish gradually from bottom to top.
Described snap ring 7 can not have screw thread, internal diameter constant yet.
Described snap ring 3 has semicircle breach near the corresponding site of pitman 4.
The bottom of described fixation of pedicle part can be screw, also can be arc shaped hook, also can be the spade hook.
Because structure of the present utility model is more scientific and reasonable, therefore, use convenient, and volume is small and exquisite, and it is few to take up space, and has embodied " low incisura " requirement to inner matter in spine corrective operation is used more, further reduced the residual dead space in the otch, lower infection rate, increased the implant bed area simultaneously, be beneficial to the bone grafting healing.
Description of drawings
Fig. 1, clinical practice sketch map of the present utility model;
Fig. 2, a kind of example structure sketch map of the present utility model;
Fig. 3, another kind of example structure sketch map of the present utility model.
Among the figure:
1-U shape structure 2-jackscrew 3-snap ring
4-pitman, 5-pedicle of vertebral arch, 6-screw
7-common snap ring 8-semicircle breach
9-special snap ring 10-arc shaped hook 11-spade hook
The specific embodiment
This utility model mainly comprises fixation of pedicle part, jackscrew 2, snap ring 3 and pitman 4 etc.
With reference to Fig. 1, the fixation of pedicle part is divided into two parts up and down: top is U-shaped structure 1, and pitman 4 is placed in one, and jackscrew 2 is arranged in the top of U-shaped structure 1 pitman 4, and snap ring 3 is enclosed within outside the U-shaped structure 1.The bottom can be screw 6 structures for the nail hook portion, or arc shaped hook 10 or spade hook 11 structures.
When needs fixedly the time, adopt bolt structure, referring to Fig. 2 between pedicle of vertebral arch and pitman; When needs fixedly the time, adopt the arc shaped hook structure, referring to Fig. 3 between pitman and pitman; When needs fixedly the time, adopt the spade hook structure, referring to Fig. 3 between vertebral plate and pitman.In other words, this utility model can be divided into three types according to the difference of its latter half: screw type, arc hook, spade hook.
Described U-shaped structure 1 can be tapped U-shaped structure, also can be to be with externally threaded U-shaped structure, also can be existing female thread, and externally threaded U-shaped structure is arranged again.
Described jackscrew 2 can be that externally threaded cylinder or cone are arranged, the top of jackscrew 2 have can be afterburning slotted eye, as interior six holes, " ten " shape groove or " one " shape groove etc., utilize the operation tool to screw in jackscrew 2 in the U-shaped structures 1.
Described snap ring 3 can be the special snap ring 9 that has female thread, internal diameter to diminish gradually, and can be have screw thread, common snap ring 7 that internal diameter is constant yet.
Described common snap ring 7 is jagged near the corresponding site of pitman 4, and breach can be semicircle breach 8.When snap ring 3 was enclosed within on the U type structure, semicircle breach 8 just in time was complementary with pitman 4, to guarantee that snap ring 7 had both tightened U-shaped structure 1, compressed pitman 4 simultaneously again.
This utility model can be used for the orthopedic and fixing of diseases such as deformity of spine, spinal fracture and unstable spine, and Fig. 1 is the sketch map of this utility model clinical practice, has used several nail hook devices among the figure, and the screw type device is arranged, and the spade hook type arrangements is also arranged.In actual applications, also available arc hook type arrangements also can several models be used.
Be that example is described further this utility model with the screw type device below.
Embodiment one, referring to Fig. 1,2, when U-shaped structure 1 band female thread, jackscrew 2 adopts externally threaded pyramidal structure, snap ring 3 adopts does not have common snap ring 7 screw thread, that internal diameter is constant.
Operating procedure:
1 screw is fixed on (or being hooked on the Vertebral laminectomy) in the pedicle of vertebral arch.
2 pitmans 4 place U-shaped structure 1.
3 snap rings 7 are enclosed within the outside of U-shaped structure 1.
The jackscrew 2 of 4 pyramidal structures screws in the U-shaped structure 1.
When screwing jackscrew 2, jackscrew 2 compresses pitman 4, simultaneously because the tapering of jackscrew 2 outwards expands and stretching snap ring 3 U-shaped structure 1.
Embodiment two, when U-shaped structure 1 band internal and external screw thread, jackscrew 2 adopts externally threaded column construction, snap ring 3 adopts special snap ring 9.
Operating procedure:
1 step 1 with embodiment one is fixed on (or being hooked on the Vertebral laminectomy) in the pedicle of vertebral arch to screw.
2 steps 2 with embodiment one place U-shaped structure 1 to pitman 4.
The jackscrew 2 of 3 column constructions screws in the U-shaped structure 1.
4 snap rings 9 are spun on the outside of U-shaped structure 1.
When screwing jackscrew 2, jackscrew 2 compresses pitman 4.When screwing in snap ring 9, because diminishing of snap ring 9 internal diameters inwardly shunk and lock ring jackscrew 2 U-shaped structure 1.
Claims (9)
1, a kind of U-shaped pedicle nail hook device, it is characterized in that: which comprises at least fixation of pedicle part U-shaped structure (1), jackscrew (2), snap ring (3), nail hook portion and pitman (4) etc., pitman (4) places U-shaped structure (1), jackscrew (2) is arranged in the top of U-shaped structure (1) pitman (4), and snap ring (3) is enclosed within outside the U-shaped structure (1).
2, U-shaped pedicle nail hook device according to claim 1 is characterized in that: described U-shaped structure (1) band female thread, also can be with external screw thread simultaneously.
3, U-shaped pedicle nail hook device according to claim 1, it is characterized in that: described jackscrew (2) has external screw thread.
4, according to claim 1 or 3 described U-shaped pedicle nail hook devices, it is characterized in that: described jackscrew (2) also can be bullet for cylindrical.
5, U-shaped pedicle nail hook device according to claim 4, it is characterized in that: the tapering of described bullet is at 0-15 °.
6, U-shaped pedicle nail hook device according to claim 1 and 2, it is characterized in that: described snap ring (3) has female thread, internal diameter to diminish gradually from bottom to top.
7, U-shaped pedicle nail hook device according to claim 1 and 2 is characterized in that: described snap ring (7) does not have screw thread, internal diameter constant.
8, U-shaped pedicle nail hook device according to claim 1 is characterized in that: snap ring (3) has semicircle breach near the corresponding site of pitman (4).
9, U-shaped pedicle nail hook device according to claim 1, it is characterized in that: the bottom of fixation of pedicle part can be screw, also can be arc shaped hook, also can be the spade hook.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 01232169 CN2486118Y (en) | 2001-07-25 | 2001-07-25 | U shape pediculus arcus vertebrae nail hook device |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 01232169 CN2486118Y (en) | 2001-07-25 | 2001-07-25 | U shape pediculus arcus vertebrae nail hook device |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN2486118Y true CN2486118Y (en) | 2002-04-17 |
Family
ID=33646286
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN 01232169 Expired - Fee Related CN2486118Y (en) | 2001-07-25 | 2001-07-25 | U shape pediculus arcus vertebrae nail hook device |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN2486118Y (en) |
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102525619A (en) * | 2010-12-10 | 2012-07-04 | 比德尔曼技术有限责任两合公司 | Receiving part and bone anchoring device with such a receiving part |
| CN102579120A (en) * | 2012-02-23 | 2012-07-18 | 北京市富乐科技开发有限公司 | Full built-in expandable anterior spinal fixation system |
| CN107080582A (en) * | 2016-02-16 | 2017-08-22 | 宋若怡 | Flexible spinal fixed system and pressure-adjustable hold-down bars |
| CN108186094A (en) * | 2018-02-10 | 2018-06-22 | 吉林百恩医疗器械科技有限公司 | A kind of novel fast insertion type galianconism multi-axial screws |
-
2001
- 2001-07-25 CN CN 01232169 patent/CN2486118Y/en not_active Expired - Fee Related
Cited By (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102525619A (en) * | 2010-12-10 | 2012-07-04 | 比德尔曼技术有限责任两合公司 | Receiving part and bone anchoring device with such a receiving part |
| US9173684B2 (en) | 2010-12-10 | 2015-11-03 | Biedermann Technologies Gmbh & Co. Kg | Receiving part for receiving a rod for coupling the rod to a bone anchoring element and bone anchoring device with such a receiving part |
| CN102525619B (en) * | 2010-12-10 | 2016-05-18 | 比德尔曼技术有限责任两合公司 | Receiving-member and there is the bone anchoring device of this receiving-member |
| CN102579120A (en) * | 2012-02-23 | 2012-07-18 | 北京市富乐科技开发有限公司 | Full built-in expandable anterior spinal fixation system |
| CN107080582A (en) * | 2016-02-16 | 2017-08-22 | 宋若怡 | Flexible spinal fixed system and pressure-adjustable hold-down bars |
| CN107080582B (en) * | 2016-02-16 | 2020-08-11 | 宋若怡 | Elastic spine fixation system and adjustable pressure fixation rod |
| CN108186094A (en) * | 2018-02-10 | 2018-06-22 | 吉林百恩医疗器械科技有限公司 | A kind of novel fast insertion type galianconism multi-axial screws |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| C19 | Lapse of patent right due to non-payment of the annual fee | ||
| CF01 | Termination of patent right due to non-payment of annual fee |