CN2829651Y - Simple spine variable angle fixer - Google Patents
Simple spine variable angle fixer Download PDFInfo
- Publication number
- CN2829651Y CN2829651Y CN 200520130185 CN200520130185U CN2829651Y CN 2829651 Y CN2829651 Y CN 2829651Y CN 200520130185 CN200520130185 CN 200520130185 CN 200520130185 U CN200520130185 U CN 200520130185U CN 2829651 Y CN2829651 Y CN 2829651Y
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- CN
- China
- Prior art keywords
- vertebral arch
- angle
- connecting rod
- lag
- chuck
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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 - Fee Related
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Abstract
The utility model relates to a simple angle changing fixer for spine, which comprises a vertebral arch pin, an angle changing clamp head, a connecting rod, a protecting sleeve and a screw bolt, wherein the vertebral arch pin is provided with a flute, the angle changing clamp head is arranged in the flute, the connecting rod penetrates into a through hole of the angle changing clamp head, and the protecting sleeve is arranged on a flute opening of the vertebral arch pin. Because one side of the angle changing clamp head is provided with an opening which is parallel to the through hole, when the screw bolt presses the angle changing clamp head through the vertebral arch pin, the integrated fixing can be obtained in one time. The utility model is a simple angle changing fixer for spine, which can simultaneously have the advantages of complex single-section multiple aligning, firmness, fixing, simple and rapid operation completion and strong stability after the operation and can effectively achieve desired effect.
Description
Technical field
This utility model relates to a kind of human spine's internal fixation, belongs to medical field orthopaedics with implanting holder, can be used for the orthopedic or internal fixation of spinal trauma, deformity, tumor, regression.
Background technology
Though have the multiple similar fixed apparatus production that is used for the treatment of spinal disease to appear on the market at home and abroad at present, on structural design,, more or less exist unreasonable or the shortcoming part owing to the complexity of patient's disease.Even the partial fixing apparatus causes complex structure in order to enlarge clinical application range.When clinical use, bad grasp has increased the difficulty of operation technique.Easily produce multiple complications with the back, as easily loosening, nail connecting rod displacement, loss angle etc.Even so, often still difficulty satisfy the spine correcting requirement and reach ideal rectification effect.There at present have many spinal fixation series products to pour into abroad to be domestic, its certain advance is arranged, but price is very expensive, user after obtaining certain therapeutic effect, the financial burden that is difficult to bear that has been back more.
From the wider like product of domestic use, select for use mostly by the pedicle nail Baltimore groove and directly lay the fixed apparatus that connects connecting rod one class.But outstanding defective is that set pedicle nail Baltimore groove is in fixed position, has directly destroyed constant intensity, obviously is affected in clinical use.Though these fixed apparatus wait and remedy the impaired defective of constant intensity such as amplifying fixed position monnolithic case or the outside device that installs additional protection ring, the nut through taking; but can be excessive when implanting fixedly because of the dynamics of being screwed into, cause the hanging part of protector self-deformation to occur.Dynamics when operation is installed is difficult for grasping.
Summary of the invention
The purpose of this utility model has better stability after being to provide a kind of implantation fixing, and the bodily form is little, and can carry out the simple and easy spinal column angle holder of suitable angle adjustment.In the spinal lesion therapeutic process, it can obtain the complicated multiple rectification of single-unit section simultaneously, as the way of escape internal fixation of lumbar vertebra fracture, slippage, intervertebral disk hernia etc.Because structure is very simple, and can simply, fast finish operation.Be a kind of safe in utilization effectively, internal fixation of spine apparatus that operation technique is simple, economical and practical.
This utility model is achieved in that a kind of simple and easy spinal column angle holder comprises: angle chuck, connecting rod, vertebral arch nail, bolt, protective sleeve.Described connecting rod penetrates in the through hole of angle chuck; Angle chuck and connecting rod are put into the U-lag that the vertebral arch nail is provided with simultaneously; Protective sleeve is placed on the U-lag mouth of vertebral arch nail; Bolt is screwed in the vertebral arch nail U-lag mouth screw thread.Behind bolt compressing angle chuck, be parallel to the opening of through hole by angle chuck one side set, it is fixing that vertebral arch nail and connecting rod are obtained.Realize the fixedly purpose of the simple and easy spinal column angle of utility model holder.
This utility model is simple in structure, and is easy to process, cheap, be used for spinal trauma, can obtaining complicated multiple rectification in the orthopedic or internal fixation of deformity, tumor, regression simultaneously, can be simple, quick success finish operation, postoperative stability is strong, can effectively reach the ideal effect of expection.
Description of drawings
Fig. 1 is this utility model structural representation;
Fig. 2 is that sketch map is cutd open in side, the main position of this utility model;
Fig. 3 is this utility model angle chuck structure sketch map;
Fig. 4 is that this utility model protective sleeve shows structural representation;
Fig. 5 is this utility model vertebral arch pin structure sketch map;
Fig. 6 is this utility model angle chuck vertical view.
Among the figure: hexagonal, 402 tapers in 1 angle chuck, 2 connecting rods, 3 vertebral arch nail, 4 bolts, 5 protective sleeves, 101 holes, 102 openings, 103 steps, garden, 104 outside arc, 301U shape groove, the 302 self tapping grooves, 401.
The specific embodiment
Its structure of this utility model is as shown in the figure: a kind of simple and easy spinal column angle holder comprises: angle chuck (1), connecting rod (2), vertebral arch nail (3), bolt (4), protective sleeve (5).Described connecting rod (2) penetrates in the through hole (101) of angle chuck (1); Angle chuck (1) is put into the U-lag (301) that vertebral arch nail (3) is provided with simultaneously with connecting rod (2); Protective sleeve (5) is placed on U-lag (301) mouth of vertebral arch nail (3).Bolt (4) is screwed in vertebral arch nail (3) U-lag (301) mouthful screw thread.Behind bolt (4) compressing angle chuck (1), be parallel to the opening (102) of through hole (101) by angle chuck (1) one side set, it is fixing that vertebral arch nail (3) and connecting rod (2) are obtained.Realize the fixedly purpose of the simple and easy spinal column angle of utility model holder.
Described vertebral arch nail (3) is provided with U-lag (301), and head of screw is provided with self tapping groove (302).
Described angle chuck (1) is provided with the hole (101) of variable-angle; One side is provided with the opening (102) of a parallel hole (101); Its head is provided with localized step (103) when being used for fixing, and prevents garden, the outside arc (104) of protective sleeve distortion.
Two of its connecting rod (2) is provided with inner hexagonal hole.
Described bolt (4) external screw thread; Head has interior hexagonal (401); The bottom is at the bottom of taper (402) arc.
Described vertebral arch nail (3), connecting rod (2), angle chuck (1), bolt (4), protective sleeve (5) all adopt implant with rustless steel or titanium alloy manufacturing.
Specific operation process:
Required angle during according to spinal fixation, selection meets the angle chuck (1) of fixed angle requirement, and connecting rod (2) is penetrated in angle chuck (1) through hole (101); Angle chuck (1) is put into the U-lag (301) that vertebral arch is followed closely (3) simultaneously with connecting rod (2); Bolt (4) utilizes hexagonal (401) in it to screw in the female thread of vertebral arch nail (3) U-lag (301) mouthful and suitably is screwed into, and makes angle chuck (1) under the effect of bolt (4) bottom taper (402) naturally in the middle of playback vertebral arch nail (3) U-lag (301); After being enclosed within protective sleeve (5) on vertebral arch nail (3) afterbody U-lag (301) mouth, (4) finally tight a bolt.Vertebral arch nail (3) reaches fixing with connecting rod (2).
Before bolt (4) is tightened, because the angle chuck of selecting for use (1) can satisfy the required angle of spinal fixation, can go up do 360 ° of rotations at connecting rod (2) again, make vertebral arch nail (3) implant into body after, when realizing fixedly, not limited by the Human Physiology angle and direction.
Bolt (4) is screwed in the process by interior hexagonal (401), because the effect of the step (103) of angle chuck (1) and bolt (4) bottom taper (402), can make the angle chuck (1) of the skew vertebral arch that playbacks naturally follow closely (3) U-lag (301) centre.Bolt this moment (4) continues to exert pressure and tightens, and makes opening (102) beginning of angle chuck (1) one side inwardly closed, reaches connecting rod (2) and fixes with the disposable integral of vertebral arch nail (3).
When connecting rod (2) is gone up symmetry vertebral arch nail (3) is installed, can go up at connecting rod (2) do to slide arbitrarily, fixing, for strutting in the spine correcting, pressurizeing provides good condition.Make this utility model can realize the comprehensively orthopedic of multi-angle, parallel as spinal column, prolong, protruding or angle correction, lateral displacement rectification etc. of back.Also can solve and lay the improper caused trouble in vertebral arch nail (3) position in the operation.
After bolt (4) is finally tightened; protective sleeve (5) is at protection vertebral arch nail (3) U-lag (301) outward in the middle of the spreading; because set angle chuck (1) outside garden arc (104) cooperates with the internal diameter of protective sleeve (5); having solved present like product may be excessive because of twisting power when implanting fixedly, makes the hanging part of protector self-deformation occur.Not only reduce the operation technique difficulty, improved constant intensity and stability especially.
Claims (5)
1. simple and easy spinal column angle holder comprises: angle chuck (1), connecting rod (2), vertebral arch nail (3), bolt (4), protective sleeve (5) is characterized in that described connecting rod (2) penetrates in the through hole (101) of angle chuck (1); Angle chuck (1) is put into the U-lag (301) that vertebral arch nail (3) is provided with simultaneously with connecting rod (2); Bolt (4) is screwed into the female thread of vertebral arch nail (3) U-lag (301) mouth; Protective sleeve (5) is placed on U-lag (301) mouth of vertebral arch nail (3); behind bolt (4) compressing angle chuck (1); be parallel to the opening (102) of through hole (101) by angle chuck (1) one side set, it is fixing that vertebral arch nail (3) and connecting rod (2) are obtained.
2. simple and easy spinal column angle holder according to claim 1 is characterized in that, the head of screw of described vertebral arch nail (3) is provided with self tapping groove (302), and its afterbody is provided with U-lag (301), and U-lag (301) mouth is provided with female thread.
3. simple and easy spinal column angle holder according to claim 1 is characterized in that described angle chuck (1) is provided with the hole (101) of variable-angle; The one side is provided with the opening (102) of a parallel hole (101); Localized step (103) and prevent garden, the outside arc (104) of protective sleeve distortion when its head is provided with fixedly.
4. simple and easy spinal column angle holder according to claim 1 is characterized in that described connecting rod (2) is an outer garden post, and the both sides head is provided with interior hexagonal.
5. simple and easy spinal column angle holder according to claim 1 is characterized in that described bolt (4) head is provided with interior hexagonal (401); The bottom is made as at the bottom of the arc of taper (402) garden.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 200520130185 CN2829651Y (en) | 2005-10-27 | 2005-10-27 | Simple spine variable angle fixer |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 200520130185 CN2829651Y (en) | 2005-10-27 | 2005-10-27 | Simple spine variable angle fixer |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN2829651Y true CN2829651Y (en) | 2006-10-25 |
Family
ID=37134574
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN 200520130185 Expired - Fee Related CN2829651Y (en) | 2005-10-27 | 2005-10-27 | Simple spine variable angle fixer |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN2829651Y (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105286972A (en) * | 2015-10-21 | 2016-02-03 | 钱明 | Multifunctional simple variable-angle spinal internal fixator |
-
2005
- 2005-10-27 CN CN 200520130185 patent/CN2829651Y/en not_active Expired - Fee Related
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105286972A (en) * | 2015-10-21 | 2016-02-03 | 钱明 | Multifunctional simple variable-angle spinal internal fixator |
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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 |