CN102485178B - Percutaneous vertebral pedicle screw inner fixing device - Google Patents
Percutaneous vertebral pedicle screw inner fixing device Download PDFInfo
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- CN102485178B CN102485178B CN 201010574137 CN201010574137A CN102485178B CN 102485178 B CN102485178 B CN 102485178B CN 201010574137 CN201010574137 CN 201010574137 CN 201010574137 A CN201010574137 A CN 201010574137A CN 102485178 B CN102485178 B CN 102485178B
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- pedicle screw
- inserter
- hold
- down bars
- fixing rod
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Abstract
The invention belongs to a percutaneous vertebral pedicle screw inner fixing device, which is used for medical clinical surgery and is concretely applied to the spine percutaneous vertebral pedicle screw inner fixation of patients. The percutaneous vertebral pedicle screw inner fixing device is characterized in that a moving arm is arranged on an installing upright post through a connecting shaft, a fixing rod placing device is arranged on the right end of the moving arm, a T-shaped groove is arranged at the lower end of the fixing rod placing device and is used for installing and connecting a fixing rod, small holes are processed on the T-shaped groove of the fixing rod placing device and are used for installing ejector pins, a round hole is processed inside the fixing rod placing device and is used for installing an ejector ball, and a propping screw bolt is arranged at the upper end of the fixing rod placing device. The percutaneous vertebral pedicle screw inner fixing device has the advantages that the use process is simple, the operation time is short, the defect of limitation that universal screws cannot be perfectly corrected and reset is overcome, and the advantage of strong corrosion and resetting force of a fixed angle nail seat vertebral pedicle screw is also ensured.
Description
Technical field:
The invention belongs to the clinical medicine employed a kind of percutaneous pedicle screw internal fixation device of performing the operation, specifically be applied in patient's the spinal column percutaneous cervical arc root screw fixing.
Background technology:
Orthopedic interior fixing for the spinal column percutaneous cervical arc root screw at present, main adjustable by Universal-head screw nail seat angle, thus nail seat side opening is arranged in be implemented in being installed on cover bucket on the nail seat that skin is outer will be fixedly connected with rod by sighting device and be installed on the nail seat.But because the restriction of Universal screw nail itself, its be difficult to carry out good orthopedic with reset.And fixed angle nail seat pedicle screw has advantage orthopedic, that the strength that resets is strong but behind the percutaneous pedicle screw, is difficult to percutaneous and inserts and be fixedly connected with rod.
Summary of the invention:
Purpose of the present invention just is to overcome above-mentioned shortcoming, and a kind of percutaneous pedicle screw internal fixation device that provides.
The present invention is achieved in that a kind of percutaneous pedicle screw internal fixation device, by column is installed, lever arm, puller bolt, connecting axle, the hold-down bars inserter, nut, stricture of vagina tooth locking plate, fastener, being connected and fixed rod and spherical adjustable nail-plate angle pedicle screw forms, it is characterized in that: on the installation column, by connecting axle lever arm is installed, right-hand member at lever arm is equipped with the hold-down bars inserter, lower end at the hold-down bars inserter is processed with T-shape slot, this T-shape slot is used for installation and is connected and fixed rod, on the T-shape slot of hold-down bars inserter, be processed with aperture, be used for installing thimble, inside at the hold-down bars inserter is processed with circular hole, be used for the decorative pearl on top of an official cap is installed, in the upper end of hold-down bars inserter puller bolt be installed.
Sphere of the present invention is adjustable, and nail-plate angle pedicle screw is mounted on the spinal vertebral of human body, on the pedicle screw of the adjustable nail-plate of sphere angle, fastener is installed, in fastener, be equipped with and be connected and fixed rod, stricture of vagina tooth locking plate is installed on fastener, upper end at the adjustable nail-plate of sphere angle pedicle screw is equipped with nut, the angle of spherical adjustable nail-plate angle pedicle screw in the hole of fastener is adjustable, fix by stricture of vagina tooth locking plate and nut after angle mixes up, in the upper end of the adjustable nail-plate of a sphere angle pedicle screw installation column is installed.
Description of drawings:
Fig. 1 is scheme of installation of the present invention.
Fig. 2 is the C-C cutaway view of Fig. 1.
Fig. 3 is the B-B cutaway view of Fig. 1.
Fig. 4 is the D-D cutaway view of Fig. 1, and this cutaway view amplifies 2 times.
Fig. 5 is the A-A cutaway view of Fig. 1.
Fig. 6 is the signal of lever arm when work, and dotted line is original position figure.
Fig. 7 be lever arm be connected and fixed rod and fix after sketch map.
Fig. 8 is lever arm and the sketch map that is connected and fixed after rod enters first fastener.
Each label declaration is as follows among the figure:
1, column is installed, 2, lever arm, 3, puller bolt, 4, connecting axle, 5, the hold-down bars inserter, 6, the decorative pearl on top of an official cap, 7, thimble, 8 nuts, 9, stricture of vagina tooth locking plate, 10, fastener, 11, be connected and fixed rod, 12, spherical adjustable nail-plate angle pedicle screw, 13, baffle ring, 14, spinal column dorsal skin, 15, the spinal vertebral of human body.
The specific embodiment:
Now describe by reference to the accompanying drawings embodiments of the invention in detail.
The present invention installs column 1 and selects the rustless steel processing and manufacturing, it is mounted in the top of spherical adjustable nail-plate angle pedicle screw 12 and fixing with nut 8, spherical adjustable nail-plate angle pedicle screw 12 is to insert first on the spinal vertebral of human body, at installation column 1 connecting axle 4 is installed, connecting axle 4 is selected the rustless steel processing and manufacturing and is riveted on column 1 is installed, lever arm 2 is selected the rustless steel processing and manufacturing, rotate around connecting axle 4 during its work, hold-down bars inserter 5 is selected the rustless steel processing and manufacturing, see that in profile it is curved, cross section on the top of arc is square, and be welded on the right-hand member of lever arm 2, cross section in the bottom of arc is rounded, circular hole is processed in inside at hold-down bars inserter 5, be used for installing the decorative pearl on top of an official cap 6, upper end at hold-down bars inserter 5 is processed with screw thread, be used for installing puller bolt 3, lower end at hold-down bars inserter 5 is processed with T-shape slot, be used for installing and be connected and fixed excellent 11, be connected and fixed rod 11 and select the titanium alloy processing and manufacturing, it is the effect that connects and fix the spinal vertebral of two human bodies, porose in the processing of the top of T-shape slot, be used for installing thimble 7, spherical adjustable nail-plate angle pedicle screw 12, select the titanium alloy processing and manufacturing, on the adjustable nail-plate of sphere angle pedicle screw 12, fastener 10 is installed, stricture of vagina tooth locking plate 9 is installed on fastener 10, fastener 10 and stricture of vagina tooth locking plate 9 are all selected the titanium alloy processing and manufacturing, baffle ring 13 is selected the rustless steel processing and manufacturing, it is installed on the connecting axle 4, and its effect is to guarantee that lever arm 2 does not come off when connecting axle 4 work.
An existing routine needs of patients is done spine corrective operation, be installed in the T-shape slot of hold-down bars inserter 5 being connected and fixed rod 11 first, and screw puller bolt 3, again the adjustable nail-plate of sphere angle pedicle screw 12 is inserted respectively on the adjacent vertebral body of spinal column in the patient body, respectively fastener 10, stricture of vagina tooth locking plate 9 and nut 8 are installed on the spherical adjustable nail-plate angle pedicle screw 12, and the gap that makes nut 8 and stricture of vagina tooth locking plate 9 will keep about 2-4 millimeter, mainly be to guarantee that fastener 10 and stricture of vagina tooth locking plate 9 are movable adjustable, being installed, column 1 is installed on any one spherical adjustable nail-plate angle pedicle screw 12 again, and fixing by nut 8, again lever arm 2 is installed on the connecting axle 4, and baffle ring 13 is installed on the connecting axle 4, this moment, hold-down bars inserter 5 (seeing Fig. 7) began to rotate around connecting axle 4, and by spinal column dorsal skin 14, insert in first fastener 10 (seeing Fig. 8) being connected and fixed rod 11, because the fastener 10 of this moment and stricture of vagina tooth locking plate 9 are movable adjustable, so can enter very smoothly, and continue to move forward in second fastener (seeing Fig. 6), this moment is first the fastening nuts on second fastener, the opposite spin puller bolt 3 again, again baffle ring 13 is taken out, take off lever arm 2 and hold-down bars inserter 5, take off again column 1 is installed, and the fastening nuts 8. on fastening another fastener is sewed up the edge of a knife again and got final product.Certainly described above only is how to come simple description process from the angle of installing, and it is complicated in detail that the process of concrete operation is also wanted.
The present invention is applicable in the percutaneous cervical arc root screw fixedly that pedicle screw-rod is orthopedic, spinal fixation bone, deformity or degenerative disease etc.
In sum, the present invention uses technique simple, and operating time is short, has namely overcome Universal screw nail and has been difficult to carry out good orthopedic restriction with resetting, and guarantees that again fixed angle nail seat pedicle screw has advantage orthopedic, that the strength that resets is strong.
Claims (4)
1. percutaneous pedicle screw internal fixation device, by column is installed, lever arm, puller bolt, connecting axle, the hold-down bars inserter, nut, stricture of vagina tooth locking plate, fastener, being connected and fixed rod and spherical adjustable nail-plate angle pedicle screw forms, it is characterized in that: on the installation column, by connecting axle lever arm is installed, right-hand member at lever arm is equipped with the hold-down bars inserter, lower end at the hold-down bars inserter is processed with T-shape slot, on the T-shape slot of hold-down bars inserter, be processed with aperture, thimble is installed in aperture, inside at the hold-down bars inserter is processed with circular hole, and the decorative pearl on top of an official cap is installed in circular hole.
2. a kind of percutaneous pedicle screw internal fixation device according to claim 1 is characterized in that: the top of the right-hand member of lever arm and hold-down bars inserter is welding.
3. a kind of percutaneous pedicle screw internal fixation device according to claim 1 and 2, it is characterized in that: the upper end at the hold-down bars inserter is equipped with puller bolt.
4. a kind of percutaneous pedicle screw internal fixation device according to claim 1 and 2 is characterized in that: at connecting axle baffle ring is installed.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 201010574137 CN102485178B (en) | 2010-12-06 | 2010-12-06 | Percutaneous vertebral pedicle screw inner fixing device |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 201010574137 CN102485178B (en) | 2010-12-06 | 2010-12-06 | Percutaneous vertebral pedicle screw inner fixing device |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN102485178A CN102485178A (en) | 2012-06-06 |
| CN102485178B true CN102485178B (en) | 2013-10-30 |
Family
ID=46150774
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN 201010574137 Expired - Fee Related CN102485178B (en) | 2010-12-06 | 2010-12-06 | Percutaneous vertebral pedicle screw inner fixing device |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN102485178B (en) |
Families Citing this family (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102727296B (en) * | 2012-07-07 | 2014-04-16 | 苏州市康力骨科器械有限公司 | Minimally invasive sighting device |
| CN102755188B (en) * | 2012-08-06 | 2014-04-30 | 周健 | Cone odontoid screw sighting device |
| CN102871716B (en) * | 2012-10-17 | 2015-02-11 | 中国人民解放军第三军医大学第二附属医院 | Pedicle screw and spine percutaneous internal fixing system |
Citations (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US5334205A (en) * | 1993-06-30 | 1994-08-02 | The United States Of America As Represented By The Secretary Of The Air Force | Sacroiliac joint fixation guide |
| CN101822572A (en) * | 2010-03-08 | 2010-09-08 | 北京纳通投资有限公司 | Screw holding rod, screw holding rod structure and spine internal fixing auxiliary system |
Family Cites Families (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US7396360B2 (en) * | 2004-09-29 | 2008-07-08 | The Cleveland Clinic Foundation | Minimally invasive method and apparatus for fusing adjacent vertebrae |
-
2010
- 2010-12-06 CN CN 201010574137 patent/CN102485178B/en not_active Expired - Fee Related
Patent Citations (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US5334205A (en) * | 1993-06-30 | 1994-08-02 | The United States Of America As Represented By The Secretary Of The Air Force | Sacroiliac joint fixation guide |
| CN101822572A (en) * | 2010-03-08 | 2010-09-08 | 北京纳通投资有限公司 | Screw holding rod, screw holding rod structure and spine internal fixing auxiliary system |
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| Publication number | Publication date |
|---|---|
| CN102485178A (en) | 2012-06-06 |
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| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20131030 Termination date: 20141206 |
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| EXPY | Termination of patent right or utility model |