CN2486119Y - Side open pediculus arcus vertebrae fixer - Google Patents
Side open pediculus arcus vertebrae fixer Download PDFInfo
- Publication number
- CN2486119Y CN2486119Y CN 01232170 CN01232170U CN2486119Y CN 2486119 Y CN2486119 Y CN 2486119Y CN 01232170 CN01232170 CN 01232170 CN 01232170 U CN01232170 U CN 01232170U CN 2486119 Y CN2486119 Y CN 2486119Y
- Authority
- CN
- China
- Prior art keywords
- side opening
- screw
- hold
- down ring
- pedicle
- 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
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- Surgical Instruments (AREA)
- Prostheses (AREA)
Abstract
An inner fixation device for the spine surgery comprises a connection rod 1, a side opening bolt 2, a press fastening ring 3, and a screw cap 2, wherein the side opening bolt 2 has a side opening 5 at middle section thereof for conveniently accommodating the connection rod 1, and the side wall of the press fastening ring 3 has two n-shaped openings with two different heights. By selecting appropriate press fastening ring 2 to fit on the side opening bolt 4, the connection rod 1 and the bolt 4 can be formed into a desirable angle after fixed, and the screw cap 2 is arranged at upper part of the press fastening ring 3. The utility model has the advantages of easy installation, predictable angle, and easy fitting with other bolts, which can be widely used in various spine surgeries.
Description
Technical field
This utility model relates to a kind of orthopedics (orthopaedics) and uses medical treatment device, especially a kind of side opening fixation of pedicle device.
Background technology
At present, the inner fixing device that uses in the spinal surgery is various, especially have by lateral mass between screw and the pitman and be connected, have by the elasticity folder and connect, but preparation before fixing and connected mode thereof be more complicated all, the adjusting of its angle always be unable to do without doctor's clinical experience and skill, and the human factors proportion is very big.In fact, in x-ray fluoroscopy imaging technique quite sophisticated today, for orthopaedics, especially patient's situation is very clear in the vertebra surgery, as: fracture or slippage cause the dislocation of how many angles, and needing to correct how many angles can reset; Perhaps, judge and to correct how many degree or the like in the operation, can measure more exactly by the armarium in modern times according to the degree of scoliosis before the art.
Summary of the invention
The purpose of this utility model provides and a kind ofly is easy to install, the rectification degree accurately and the spinal surgery inner fixing device that can fully effectively prepare before the operation.
The purpose of this utility model is achieved in that
The screw tail end is designed to the side opening structure, being connected before being convenient to pitman and screw being fixing; Pre-designed a series of hold-down ring is certain after adopting wherein a kind of hold-down ring can accurately guarantee to make pitman and screw fixing and needs angle.
A kind of side opening pedicle of vertebral arch inner fixing device, it mainly comprises pitman, side opening screw, hold-down ring, nut, and pitman places the side opening of side opening screw, and hold-down ring is enclosed within on the side opening screw, and nut is positioned at hold-down ring top.
Described side opening screw epimere is that screw rod, stage casing have a side opening, and hypomere is screw, spade hook or arc shaped hook.
The sidewall of described hold-down ring has two highly different " n " shape mouths.
Described side opening axial side section is " C " shape.
Epirelief in the middle of the bottom of described side opening.
Described nut band female thread also can be at the top design thrusting groove.
Effect of the present utility model is very obvious, and the one, manyly in operation process, need the work done, can before operation, carry out fully, effectively prepare, accomplish to have a well-though-out plan, shoot the arrow at the target.As the angular adjustment of the orthopedic degree of needs, pitman and screw, can before operation, pass through technology such as perspective, measurement, the chosen in advance hold-down ring, thus make operation plan scientific and specific aim is stronger.The 2nd, internal fixation device is installed simple and fast, has shortened the whole surgery time greatly.
Description of drawings
Fig. 1, clinical sketch map of the present utility model;
The front view of Fig. 2, this utility model screw;
The front elevational view of Fig. 3, this utility model screw;
The side view of Fig. 4, this utility model screw;
The left side of Fig. 5, this utility model hold-down ring is looked, is faced, right view.
Among the figure:
1-pitman, 2-nut, 3-hold-down ring
4-side opening screw, 5-side opening
The specific embodiment
This utility model comprises pitman 1, side opening screw 4, hold-down ring 3, nut 2.Pitman 1 places the side opening 5 of side opening screw 4, and hold-down ring 3 is enclosed within on the side opening screw 4, and nut 2 is positioned at hold-down ring 3 tops, nut 2 band female threads, and thrusting groove is arranged at the top.
Described side opening screw 4 epimeres are that screw rod, stage casing have a side opening, and hypomere is screw or spade hook or arc shaped hook.Side opening 5 axial side sections are " C " shape, and epirelief in the middle of the bottom of side opening 5.
The sidewall of described hold-down ring 3 has two highly different " n " shape mouths, and promptly there is difference in height in two openings, so that screw 4 and pitman 1 fixing back shape are had a certain degree.
In general, carrying out spinal segments fixedly the time, be fixed between screw 4 on the pedicle of vertebral arch and the pitman 1 and all need certain angle, this is because the normal spinal column of human body has certain physiological bending (radian), and the physiological bending of different spinal segments is also different, therefore, and can not be in vertical state between pitman 1 and the screw 4, so must choose different hold-down ring 3 according to different angle needs.
A kind of embodiment of the present utility model is as follows with the concrete operations step that lifts the screw fit use when spondylolysis resets:
Before 1 operation, observe spondylolysis or fracture position, sections place by the perspective technology;
2 measure slippage vertebra joint need lift back, normal position (or ideal position) with adjacent
The angle of normal vertebra joint;
3 choose the suitable hold-down ring 3 that can satisfy above-mentioned angle;
In 4 operations, on the pedicle of vertebral arch of the slippage or the adjacent normal vertebra joint of fracturing, fix side opening screw 4;
5 fixedly lift screw on the pedicle of vertebral arch of above-mentioned slippage vertebra joint;
6 one ends are placed on the side opening screw with the other end that lifts the pitman 1 that screw links to each other
In 4 the side opening 5;
Selected hold-down ring 3 is enclosed within on the screw rod of side opening screw 4 before 7 operations
8 are being spun on nut 2 on the above-mentioned screw rod on the hold-down ring 3
9 utilize instrument to screw nut 2
10 rotate the nut lift on the screw, and tighten, and make to carry on the vertebra joint of slippage to normally
The position.
The actual enforcement of this utility model is not limited to the foregoing description, can also utilize the hold-down ring of several suitable differing heights differences to cooperate and form frame structure, also is easy to be used with other orthopaedics hold-down screw.Nor be confined to spondylolishesis or fracture, can be widely used in any Osteological fixing operation.
Claims (6)
1, a kind of side opening pedicle of vertebral arch inner fixing device, it is characterized in that: it mainly comprises pitman (1), side opening screw (4), hold-down ring (3), nut (2), pitman (1) places the side opening (5) of side opening screw (4), hold-down ring (3) is enclosed within on the side opening screw (4), and nut (2) is positioned at hold-down ring (3) top.
2, according to claims 1 described side opening pedicle of vertebral arch inner fixing device, it is characterized in that: described side opening screw (4) epimere is that screw rod, stage casing have a side opening (5), and hypomere is screw, spade hook or arc shaped hook.
3, according to claims 1 or 2 described side opening pedicle of vertebral arch inner fixing devices, it is characterized in that: the sidewall of described hold-down ring (3) has two highly different " n " shape mouths.
4, according to claims 1 or 2 described side opening pedicle of vertebral arch inner fixing devices, it is characterized in that: side opening (5) axial side section is " C " shape.
5, according to claims 1,2 described side opening pedicle of vertebral arch inner fixing devices, it is characterized in that: epirelief in the middle of the bottom of side opening (5).
6, according to claims 1 described side opening pedicle of vertebral arch inner fixing device, it is characterized in that: nut (2) band female thread, also can be at the top design thrusting groove.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 01232170 CN2486119Y (en) | 2001-07-25 | 2001-07-25 | Side open pediculus arcus vertebrae fixer |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 01232170 CN2486119Y (en) | 2001-07-25 | 2001-07-25 | Side open pediculus arcus vertebrae fixer |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN2486119Y true CN2486119Y (en) | 2002-04-17 |
Family
ID=33646287
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN 01232170 Expired - Fee Related CN2486119Y (en) | 2001-07-25 | 2001-07-25 | Side open pediculus arcus vertebrae fixer |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN2486119Y (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104093379A (en) * | 2011-12-07 | 2014-10-08 | 史密夫和内修有限公司 | Orthopedic implant augments |
-
2001
- 2001-07-25 CN CN 01232170 patent/CN2486119Y/en not_active Expired - Fee Related
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104093379A (en) * | 2011-12-07 | 2014-10-08 | 史密夫和内修有限公司 | Orthopedic implant augments |
| CN104093379B (en) * | 2011-12-07 | 2017-09-08 | 史密夫和内修有限公司 | Orthopaedic implants reinforcer |
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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 |