CN201341943Y - Toothed self-locking pedicle screw plate fixation system - Google Patents
Toothed self-locking pedicle screw plate fixation system Download PDFInfo
- Publication number
- CN201341943Y CN201341943Y CNU2008202264748U CN200820226474U CN201341943Y CN 201341943 Y CN201341943 Y CN 201341943Y CN U2008202264748 U CNU2008202264748 U CN U2008202264748U CN 200820226474 U CN200820226474 U CN 200820226474U CN 201341943 Y CN201341943 Y CN 201341943Y
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- adjustable
- stricture
- plate
- pedicle screw
- vagina tooth
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Abstract
The utility model belongs to a toothed self-locking pedicle screw plate fixation system used in clinical operations, which consists of an adjustable toothed steel plate, a spherical adjustable screw plate angle pedicle bolt, a pedicle bolt, arc-track teeth, a tooth lock plate, a flat washer, an elastic washer, a nut and a pull rod. The fixation system has the following characteristics: the arc-track teeth are arranged on the right side of the adjustable toothed steel plate, a hole is arranged on the arc-track teeth, the upper end of the hole is shaped like a long strip, the lower end of the hole is shaped like a sphere, a rectangular hole is arranged on the left end of the adjustable toothed steel plate, and a section of threadless nut-guiding rod is arranged on the upper end of the spherical adjustable screw plate angle pedicle bolt. The utility model is applicable in minimally invasive (endoscopic) or open surgeries for curing lumbar spondylolisthesis, lumbar instability, far lateral lumbar disc herniation and other symptoms; the technique of the utility model is simple; because of the design of the teeth, the angle of the screw plate can be adjusted and fixed; and mounting is carried out from the top, so operation is convenient.
Description
Technical field:
This utility model belongs to the clinical medicine orthopedic holder of employed a kind of stricture of vagina tooth self-locking pedicle of vertebral arch nail-plate of performing the operation, and specifically is used for the orthopedic, fixing of intravital adjacent two lumbar vertebras of patient or waist sacral.
Background technology:
The employed orthopedic holder of patient that needs surgical orthopaedic at present for lumbar vertebra, the one, adopt the excellent method for designing of nail, this method is to realize following closely the adjustable of excellent angle with the Universal-head screw, will bend rod in advance and adapt to kurtorachic in operation, and realize that upper lumbar vertebra can lift and reset.This complex process of performing the operation, inconvenient operation, the cost height, some nail rod does not adopt the top that design is installed, and is difficult to fitting operation under endoscope.The 2nd, adopt the nail-plate method for designing, the shortcoming of this method is that the angle of nail-plate is non-adjustable.
The utility model content:
The purpose of this utility model just is to overcome above-mentioned shortcoming, and the orthopedic holder of a kind of stricture of vagina tooth self-locking pedicle of vertebral arch nail-plate that provides.
This utility model is achieved in that the orthopedic holder of this stricture of vagina tooth self-locking pedicle of vertebral arch nail-plate is by adjustable stricture of vagina tooth steel plate, spherical adjustable nail-plate angle pedicle screw, pedicle screw, arc rail stricture of vagina tooth, stricture of vagina tooth locking plate, plain cushion, elastomeric pad, nut and lifting rod are formed, it is characterized in that: the right-hand member at adjustable stricture of vagina tooth steel plate is processed with arc rail stricture of vagina tooth, processing is porose on arc rail stricture of vagina tooth, elongate in shape is processed in upper end in the hole, the ball-type shape is processed in the lower end in hole, left end at adjustable stricture of vagina tooth steel plate is processed with rectangular hole, is processed with one section threadless medicated cap bar that draws in the upper end of the adjustable nail-plate of sphere angle pedicle screw.
Sphere of the present utility model is adjustable nail-plate angle pedicle screw, be installed in the hole of arc rail stricture of vagina tooth of adjustable stricture of vagina tooth steel plate right-hand member, on the pedicle screw of the adjustable nail-plate of sphere angle, stricture of vagina tooth locking plate and nut are installed, the angle of spherical adjustable nail-plate angle pedicle screw in the hole of arc rail stricture of vagina tooth is adjustable, and it is fixed by stricture of vagina tooth locking plate and nut state that angle mixes up the back.Pedicle screw is installed in the rectangular hole of adjustable stricture of vagina tooth steel plate left end, the horizontal level of pedicle screw in rectangular hole is adjustable, plain cushion, elastomeric pad and nut are installed, when the horizontal position adjustment of pedicle screw in rectangular hole fixed by plain cushion, elastomeric pad and nut after well on pedicle screw.
Description of drawings:
Fig. 1 is a scheme of installation of the present utility model, i.e. the B-B cutaway view of Fig. 2.
Fig. 2 is the A-A cutaway view of Fig. 1.
Fig. 3 is the vertical view (this vertical view removes stricture of vagina tooth locking plate, plain cushion, elastomeric pad and nut) of Fig. 1.
Fig. 4 is the installation connection diagram of this utility model adjacent two lumbar vertebras in operation.
Fig. 5 is adjustable stricture of vagina tooth steel plate of the present utility model, i.e. the D-D cutaway view of Fig. 7.
Fig. 6 is the C-C cutaway view of Fig. 5.
Fig. 7 is the vertical view of Fig. 5.
Fig. 8 is the front view of spherical adjustable nail-plate angle pedicle screw.
Fig. 9 is the E-E cutaway view of Fig. 8.
Figure 10 is the adjustable nail-plate of sphere of the present utility model angle pedicle screw and pedicle screw and the installation position adjustable of adjustable stricture of vagina tooth steel plate and the sketch map of angle.
Each label declaration is as follows among the figure:
1, adjustable stricture of vagina tooth steel plate, 2, spherical adjustable nail-plate angle pedicle screw, 3, pedicle screw, 4, arc rail stricture of vagina tooth, 5, stricture of vagina tooth locking plate, 6, nut, 7, lifting rod, 8 plain cushions, 9, elastomeric pad, the 10, the 4th lumbar vertebra, the 11, the 5th lumbar vertebra.
The specific embodiment:
Now describe embodiment of the present utility model in conjunction with the accompanying drawings in detail.
This utility model is mounted in two any adjacent vertebras in intravital first rumpbone of patient, the 5th lumbar vertebra, the 4th lumbar vertebra, the 3rd lumbar vertebra, the 2nd lumbar vertebra and the 1st lumbar vertebra, and the employed all material of this utility model is the titanium alloy processing and fabricating.Adjustable stricture of vagina tooth steel plate 1 (is seen Fig. 5, Fig. 6, right-hand member Fig. 7) is processed with arc rail stricture of vagina tooth 4, its effect is that stricture of vagina tooth locking plate 5 is installed, and by nut 6 fixing spherical adjustable nail-plate angle pedicle screws 2, on arc rail stricture of vagina tooth 4, be processed with rectangular hole, be used to install spherical adjustable nail-plate angle pedicle screw 2, on stricture of vagina tooth locking plate 5, nut 6 is installed, the left end of adjustable stricture of vagina tooth steel plate 1 also can be processed into angle (see figure 4) upwards, be convenient to the operation of performing the operation like this, spherical adjustable nail-plate angle pedicle screw 2 (is seen Fig. 8, Fig. 9) be processed into hollow, its effect is to cooperate installation with draw point, spherical adjustable nail-plate angle pedicle screw 2 is to be enclosed within draw point, and under the guiding of draw point, spherical adjustable nail-plate angle pedicle screw 2 is installed in (this utility model is mounted on intravital the 5th lumbar vertebra of patient and the 4th lumbar vertebra) on the 5th lumbar vertebra 11 just as attacking wood screw, self-tapping screw is processed in the lower end of spherical adjustable nail-plate angle pedicle screw 2, its effect is to guarantee safe and reliable inserting on intravital the 5th lumbar vertebra 11 of patient, ball-type is processed at middle part at the adjustable nail-plate of sphere angle pedicle screw 2, its effect is can be installed in the rectangular hole of the right-hand member of adjustable stricture of vagina tooth steel plate, and in the hole, rotate in certain angle, being processed into its effect of lead screw (see figure 8) on the top of the adjustable nail-plate of sphere angle pedicle screw 2 is that nut 6 is installed, the plane (see figure 3) is processed on relative two sides in lead screw, its effect is mounted in the rectangular hole of adjustable stricture of vagina tooth steel plate right-hand member and can not rotates, the convenient nut 6 of installing, on the position of the close upper end of lead screw, be processed with two slotted eyes (seeing Fig. 8 Fig. 9), its effect is after nut 6 installs, can remove lifting rod 7 very easily, at one section threadless medicated cap bar that draws of the upper end of lifting rod 7 processing, its diameter equals the internal diameter of nut 6, like this nut 6 can be installed very easily.The structure of pedicle screw 3 has part identical with spherical adjustable nail-plate angle pedicle screw 2, different is, the axle of step is processed at the middle part of pedicle screw 3, because pedicle screw 3 is to move horizontally the back fixed in the rectangular hole of the left end of adjustable stricture of vagina tooth steel plate 1, other structure of pedicle screw 3 and effect are identical with spherical adjustable nail-plate angle pedicle screw 2.
Hypothesis patient's the 5th lumbar vertebra 11 and the 4th lumbar vertebra 10 need to install this utility model now.Earlier spherical adjustable nail-plate angle pedicle screw 2 is being inserted under the guiding of draw point on patient's the 5th lumbar vertebra 11 during operation, the flat direction on the attention lifting rod 7 and the consistent (see figure 3) of direction of adjustable stricture of vagina tooth steel plate 1, insert pedicle screw 3 on patient's the 4th lumbar vertebra 10 with identical method again, again adjustable stricture of vagina tooth steel plate 1 is placed in (see figure 3) on spherical adjustable nail-plate angle pedicle screw 2 and the pedicle screw 3, again stricture of vagina tooth locking plate 5 is installed on the arc rail stricture of vagina tooth 4, again nut 6 is installed on the spherical adjustable nail-plate angle pedicle screw 2, after adjusting the angle of adjustable stricture of vagina tooth steel plate 1 nut 6 is tightened, again lifting rod 7 foldings of the upper end of the adjustable nail-plate of sphere angle pedicle screw 2 are fallen, again plain cushion 8, elastomeric pad 9 and nut 6 are installed on the pedicle screw 3, and nut 6 tightened the effect that lifts that produces, again upper end lifting rod 7 foldings of pedicle screw 3 are fallen.
This utility model is applicable to Wicresoft (under the endoscope) or open surgery treatment lumbar spondylolisthesis, lumbar vertebra unstability disease, utmost point outside type prolapse of lumbar intervertebral disc etc.
In sum, this utility model uses technology simple, the design of arc rail stricture of vagina tooth, both can allow to regulate the angle of adjustable stricture of vagina tooth steel plate and spherical adjustable nail-plate angle pedicle screw, can fixed angle not lost by stricture of vagina tooth locking plate again, the top of spherical adjustable nail-plate angle pedicle screw and pedicle screw be processed with the threadless medicated cap bar that draws, and can make nut easy installation and reliable, design is installed at adjustable stricture of vagina tooth steel plate top, and is easy to operate.
Claims (1)
1, the orthopedic holder of a kind of stricture of vagina tooth self-locking pedicle of vertebral arch nail-plate is by adjustable stricture of vagina tooth steel plate, spherical adjustable nail-plate angle pedicle screw, pedicle screw, arc rail stricture of vagina tooth, stricture of vagina tooth locking plate, plain cushion, elastomeric pad, nut and lifting rod are formed, it is characterized in that: the right-hand member at adjustable stricture of vagina tooth steel plate is processed with arc rail stricture of vagina tooth, processing is porose on arc rail stricture of vagina tooth, elongate in shape is processed in upper end in the hole, the ball-type shape is processed in the lower end in hole, left end at adjustable stricture of vagina tooth steel plate is processed with rectangular hole, is processed with one section threadless medicated cap bar that draws in the upper end of the adjustable nail-plate of sphere angle pedicle screw.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CNU2008202264748U CN201341943Y (en) | 2008-12-04 | 2008-12-04 | Toothed self-locking pedicle screw plate fixation system |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CNU2008202264748U CN201341943Y (en) | 2008-12-04 | 2008-12-04 | Toothed self-locking pedicle screw plate fixation system |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN201341943Y true CN201341943Y (en) | 2009-11-11 |
Family
ID=41273527
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CNU2008202264748U Expired - Fee Related CN201341943Y (en) | 2008-12-04 | 2008-12-04 | Toothed self-locking pedicle screw plate fixation system |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN201341943Y (en) |
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| RU2445038C1 (en) * | 2010-09-27 | 2012-03-20 | Федеральное государственное учреждение "Уральский научно-исследовательский институт травматологии и ортопедии имени В.Д. Чаклина" Министерства здравоохранения и социального развития Российской Федерации | Method of determining indications to performing anterior interbody spondildesis in surgical treatment of patients with compressive-comminuted fractions in low thoracic and lumbar part of spine |
| CN104814782A (en) * | 2015-04-30 | 2015-08-05 | 杨永军 | Middle-upper thoracic vertebrae half pedicle fixing instrument |
| CN106455938A (en) * | 2014-05-29 | 2017-02-22 | 艾佛里·M·杰克森三世 | Illuminated endoscopic pedicle proble with proximity monitoring |
| CN106859753A (en) * | 2015-12-12 | 2017-06-20 | 刘峻 | Reduction fixture device under a kind of expanding channel |
-
2008
- 2008-12-04 CN CNU2008202264748U patent/CN201341943Y/en not_active Expired - Fee Related
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| RU2445038C1 (en) * | 2010-09-27 | 2012-03-20 | Федеральное государственное учреждение "Уральский научно-исследовательский институт травматологии и ортопедии имени В.Д. Чаклина" Министерства здравоохранения и социального развития Российской Федерации | Method of determining indications to performing anterior interbody spondildesis in surgical treatment of patients with compressive-comminuted fractions in low thoracic and lumbar part of spine |
| CN106455938A (en) * | 2014-05-29 | 2017-02-22 | 艾佛里·M·杰克森三世 | Illuminated endoscopic pedicle proble with proximity monitoring |
| CN104814782A (en) * | 2015-04-30 | 2015-08-05 | 杨永军 | Middle-upper thoracic vertebrae half pedicle fixing instrument |
| CN106859753A (en) * | 2015-12-12 | 2017-06-20 | 刘峻 | Reduction fixture device under a kind of expanding channel |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| C17 | Cessation of patent right | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20091111 Termination date: 20100104 |