CN1141065C - Three-dimensional locator for pedicle for cervical vertebra arch - Google Patents
Three-dimensional locator for pedicle for cervical vertebra arch Download PDFInfo
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- CN1141065C CN1141065C CNB021125767A CN02112576A CN1141065C CN 1141065 C CN1141065 C CN 1141065C CN B021125767 A CNB021125767 A CN B021125767A CN 02112576 A CN02112576 A CN 02112576A CN 1141065 C CN1141065 C CN 1141065C
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Abstract
The present invention relates to a positioning device for accurately implanting a vertebral arch screw into a cervical vertebrae in an orthopaedics operation. The present invention is composed of two force arm rods, a middle sliding plate, an angular arc-shaped rod, an aiming device and zygapophysis foot rods, wherein the middle of each force arm rod is provided with a vertical long through groove, and the front ends of the force arm rods are integrally connected with side block feet; the middle sliding plate is arranged between the two force arm rods, and the upper part of the middle sliding plate is hinged with a cross point of a cross type crossing shelf; two upper ends of four external ends of the type crossing shelf are respectively hinged with the upper ends of the two force arm rods, and two lower ends of the cross type crossing shelf are respectively connected to the vertical long through grooves of the two force arm rods through connecting pins in a sliding mode. Besides, the middle sliding plate is movably connected with the angular arc-shaped rod; the aiming device is integrally composed of a lower bearing bracket and an upper drill head guiding pipe, wherein the lower bearing bracket is movably connected with the angular arc-shaped rod; the upper ends of the two zygapophysis foot rods are both integrally connected with zygapophysis feet, and the two zygapophysis foot rods are parallelly arranged behind the upper ends of the two force arm rods and are both provided with long through grooves; the upper ends of the two force arm rods are connected with the long through grooves of the two zygapophysis foot rods through regulating screw rods, and thus, the zygapophysis foot rods can be vertically and horizontally moved and regulated.
Description
Technical field
The present invention relates to be used in a kind of bone surgery the localizer that the pedicle for cervical vertebra arch screw is accurately implanted.
Background technology
Bringing into play important effect aspect the treatments such as pedicle screw resets at spinal trauma, malformation correction, unstability reconstruction.The use of pedicle screw expands to thoracic vertebra by lumbar vertebra at present, and even cervical vertebra.The biomechanical property of cervical vertebra pedicle multiple screws excellence has been confirmed and has been applied to the clinical gratifying effect that obtains.But the pedicle of vertebral arch of cervical vertebra tiny than lumbar vertebra and thoracic vertebra, and direction of travel complexity by contrast, individual variation and variability are big, because of. this pedicle for cervical vertebra arch screw application clinically is restricted.Though existing report about the pedicle for cervical vertebra arch Position Research, as (1): domestic king Dong Laifa, it is that initial point is set up plane right-angle coordinate with articular process of cervical vertebra back side mid point, and entry point is the mid point that C3-C6 goes up quadrant outside, and C7 is on the Y-axis, below the summary of superior articular surface lower edge; The inserting needle direction is that C3-C6 and sagittal line are 40 ° of-45 ° of angles, C7 and sagittal lines and are 30 ° of-40 ° of angles, and parallel respective stage vertebral body goes up soleplate.(2): the domestic Wu brave method of fighting, it draws three vertical line branch articular processes with the articular process back side is quarter, entry point is on outer 1/3 vertical line at C3-C5, apart from the inferior articular process lower edge 3mm place of upper vertebra, and the inferior articular process lower edge 2mm place of C6-C7 upper vertebra of distance on perpendicular bisector; Advancing to follow closely direction and vertebral body sagittal line angle is that C3-C5 is 40 °, and C6-C7 is 35 °, is respectively with vertebral body horizontal line angle (horizontal line is a zero degree, more than for just, below for negative) C3-C4, C5, C6-C7 :-5 °, 0 °, 5 °.(3): domestic Sun Yufa, it is an entry point in 3mm place, superior articular process's articular surface minimum point below, and C3-C5 and vertebral body sagittal plane are 45 °, and C6-C7 and vertebral body sagittal plane are 35 ° of angles.Be-9 °, 0 °, 8 °, 15 °, 13 ° angles respectively with vertebral body horizontal plane C3-C7.(4): external Abumi method: the C3-C7 entry point is the inwardly about 5mm of the summary below lateral mass outer rim place of the fixedly inferior articular process lower end of the upper vertebra of vertebra, becomes 25 °-45 with the vertebral body sagittal line; C5-C7 is parallel with last soleplate, and the C4 needle tip is slightly oblique to a square neck, and C3 is slightly oblique to a square neck again than C4.(5): domestic Ebraheim method, it connects horizontal line in a last vertebral body left and right sides inferior articular process lower edge, connects ordinate in adjacent vertebrae lateral mass outer rim again, and entry point is 4.5-6.4mm place in 1.6-2.6mm under the horizontal line, the ordinate; Be 90 °-100 ° with the lateral mass surface on the horizontal plane, be 53 ° of-94 ° of angles with the lateral mass surface on the sagittal plane.(6): pedicle of vertebral arch exploration, this method be will fixed-segment vertebral plate do the part excision and directly seek and visit the vertebral arch location of root or manifest pedicle of vertebral arch, direct-view underlying nail.(7): Computerized three-dimensional navigation system method, this system are by the scanning of C arm X-ray machine, and machine is handled and set up the Three-Dimensional Dynamic video as calculated, for pedicle screw is inserted navigation, are the new application of the three-dimensional guiding technique of neurosurgery at spinal surgery.But the method for above-mentioned (1)-(6) is complicated and do not have the localizer assistant and help, complete estimated distance and angle during operation technique, and error is restive.Have only above-mentioned (7) kind method and can be used for carrying out the localized instrument of pedicle of vertebral arch at present, i.e. " Computerized three-dimensional navigation system ", its price is very expensive, and clinical being difficult to popularized, carries out.
Summary of the invention
Purpose of the present invention is exactly in order to address the above problem, and provides a kind of with low cost, can implant for the pedicle for cervical vertebra arch screw accurate localized three-dimensional locator for pedicle for cervical vertebra arch is provided.
Technical solution of the present invention:
A kind of three-dimensional locator for pedicle for cervical vertebra arch, it is characterized in that it is by two arm bars, middle sliding plate, the angle bow, sight and articular process foot bar are formed, all have vertical long groove in the middle of two arm bars, the equal integral body of their front end is connected with the lateral mass foot, middle sliding plate is positioned in the middle of two arm bars, its top is hinged with the cross cross point that intersects frame, two upper ends in four outer ends of cross intersection frame are hinged with the upper end of two arm bars respectively, two lower end is slidingly connected in the vertical long groove of two arm bars by connecting pin respectively, middle sliding plate and angle bow are movably connected, sight is made of bottom support bracket and upper drill bit guide pipe one, support bracket is movably connected on the angle bow, the equal integral body in upper end of two articular processes foot bar is connected with the articular process foot, their parallel two arm bar upper rear that are positioned at, also have long groove on it, two arm bars upper ends links to each other by the long groove of adjusting screw(rod) with two articular processes foot bar, make that the sufficient bar of two articular processes can carry out on, down and before, the translational adjustment of back side.
The present invention is simple in structure, and is with low cost, easy to operate, accurate location can be provided for the implantation of pedicle for cervical vertebra arch screw, improve the safety that the pedicle for cervical vertebra arch screw is implanted, simplify its operation, provide safety guarantee for popularizing pedicle screw application clinically, be convenient to promote.
Description of drawings
Fig. 1 is a structural representation of the present invention.
Fig. 2 is the right view (saving angle bow and sight) of Fig. 1.
Fig. 3 is a sight structural representation of the present invention.
The specific embodiment
As Fig. 1-3, the present invention is by two arm bars 1, middle sliding plate 2, angle bow 3, sight 4 and articular process foot bar 5 are formed, all have vertical long groove 6 in the middle of two arm bars 1, the equal integral body of their front end is connected with lateral mass foot 7, middle sliding plate 2 is positioned in the middle of two arm bars 1, its top is hinged with the cross cross point that intersects frame 8, two upper ends in four outer ends of cross intersection frame 8 are hinged with the upper end of two arm bars 1 respectively, two lower end is slidingly connected in the vertical long groove 6 of two arm bars 1 by connecting pin 9 respectively, middle sliding plate 2 is movably connected with angle bow 3, sight 4 is made of bottom support bracket 17 and upper drill bit guide pipe 18 one, support bracket 17 activities, be connected on the angle bow 3, the equal integral body in upper end of two articular processes foot bar 5 is connected with articular process foot 10, their parallel two arm bars, 1 upper rear that is positioned at, also have long groove on it, two arm bars, 1 upper end links to each other by the long groove of adjusting screw(rod) 11 and two articular processes foot bar 5, make that the sufficient bar 5 of two articular processes can carry out on, down and before, the translational adjustment of back side.
Among the present invention, two arm bars 1 can be the monolayer bars, also can be double-deck bar, they all have vertical long groove 6, correspondingly, cross intersection frame 8 also is double-deck, and their upper end is all hinged with the upper end of double-deck arm bar 1, their lower end all is slidingly connected in the vertical long groove 6 of double-deck arm bar 1 by connecting pin 9, and two rear force armed levers, the 1 upper end integral body of double-deck arm bar 1 is connected with lateral mass foot 7.Double-deck arm bar 1 can guarantee its stability.For further improving stability, can be connected with horizontal arc 12 in the lower end of middle sliding plate 2 integral body, these arc 12 both sides have arc sliding rail groove 13, the lower end of double-deck arm bar 1 is slidingly connected in the both sides rail groove 13 of the horizontal arc 12 in middle sliding plate 2 lower ends by connecting pin 24, make when double-deck both sides arm bar 1 is done the motion of any folding position under the effect of cross intersection frame 8, just slide in rail groove 13 inter-syncs of both sides, middle sliding plate 2 lower end in their lower end, sliding plate 2 is in the centre and the parallel position of double-deck both sides arm bar 1 all the time in the middle of guaranteeing.
For improving the stability of angle bow 3, angle bow 3 can be tabular or bilateral tower structure, its middle part is provided with bar shaped contiguous block 14, correspondingly, middle sliding plate 2 middle parts have vertical long groove 15, the bar shaped contiguous block 14 surperficial raised lines of angle bow 3 just insert in the middle sliding plate 2 vertical long grooves 15, and contiguous block 14 links to each other with middle sliding plate 2 by fastening adjustment screws 16, make by regulating fastening adjustment screws 16, the position of adjustable-angle bow 3 on middle sliding plate 2.The support bracket 17 of sight 4 is a straight-bar, have long groove 19 in the middle of it, there is a strip plate 20 at its rear portion, the length of this strip plate 20 is slightly larger than the width of angle bow 3, angle bow 3 is located between support bracket 17 and the strip plate 20, and on the strip plate 20, following two ends are connected in the vertical long groove 19 of support bracket 17 by regulating trip bolt 21, by regulating this adjusting trip bolt 21, the support bracket 17 that can make sight 4 is on the one hand done the mobile adjusting of arc angle direction along angle bow 3, and long groove 19 that also can be by support bracket 17 is along on adjusting trip bolt 21 works of strip plate 20 on the other hand, following straight line moves adjusting.Integral body is connected with drill bit guide pipe 18 in the upper end of support bracket 17, the centrage of drill bit guide pipe 18 preferably and a side parallel alignment of support bracket 17, the side that can utilize support bracket 17 like this reads in angle-data of living on the angle bow 3 as scale, and drill bit guide pipe 18 is used for penetrating surgical drill and can it is stable.
The adjusting screw(rod) 11 of articular process foot bar 5 of the present invention is a long bolt, they have four, two of one sides, the screw portion of long bolt 11 is threaded with the corresponding screw on double-deck arm bar 1 top, the long groove of articular process foot bar 5 is passed at the rear portion of long bolt 11, and the position of long bolt 11 rear portions corresponding articular process foot bar 5 front surfaces is installed with spacing shim 22, the termination nut 23 and the stressed joints of passing articular process foot bar 5 long grooves at long bolt 11 rear portions, like this, before, long bolt 5 is regulated in back turn, the front and back position of scalable articular process foot bar 5, and with the long groove of articular process foot bar 5 along on the long bolt 11, down mobile scalable is on it, upper/lower positions.
Work process of the present invention is as follows, according to patient CT radiographic measurement numerical value, regulate the adjusting screw(rod) 11 of double-deck arm bar 1 upper end earlier, make the difference in height (can determine) of articular process foot 10 terminations with lateral mass foot 7 terminations of layer two arm bar 1 upper end, back of distance between two articular processes foots bar 5 and back layer two arm bar 1 (can by determining on the scale that connects backward at back layer arm bar) and two articular processes foot bar, 5 upper ends meet patient CT radiographic measurement data by scale being set in back layer arm bar and the sufficient bar of corresponding articular process side, the angle of the sight 4 on the adjusting angle bow 3 then, and the position of angle arc bar 3 on middle sliding plate 2 makes it also meet CT measurement numerical value, localizer of the present invention can be inserted patient's cervical operation place like this, and according to the width adjusting decussation frame 8 between patient's neck bone two articular processes, make the distance between the double-deck both sides armed lever 1 corresponding with it, then can make the articular process foot 10 of two articular processes foot bar 5 just in time withstand on patient's articular process lower edge easily, and just in time insert in patient's cervical lateral mass at the tip of the lateral mass of two arm bars, 1 upper end foot 7, can pass the front portion of operation long drill bit the drill bit guide pipe 18 of sight 4 this moment, the boring that undergos surgery exactly guarantees accurately to be screwed into nail.
Claims (6)
1, a kind of three-dimensional locator for pedicle for cervical vertebra arch, it is characterized in that it is by two arm bars, middle sliding plate, the angle bow, sight and articular process foot bar are formed, all have vertical long groove in the middle of two arm bars, the equal integral body of their front end is connected with the lateral mass foot, middle sliding plate is positioned in the middle of two arm bars, its top is hinged with the cross cross point that intersects frame, two upper ends in four outer ends of cross intersection frame are hinged with the upper end of two arm bars respectively, two lower end is slidingly connected in the vertical long groove of two arm bars by connecting pin respectively, middle sliding plate and angle bow are movably connected, sight is made of bottom support bracket and upper drill bit guide pipe one, support bracket is movably connected on the angle bow, the equal integral body in upper end of two articular processes foot bar is connected with the articular process foot, their parallel two arm bar upper rear that are positioned at, also have long groove on it, two arm bars upper ends links to each other by the long groove of adjusting screw(rod) with two articular processes foot bar, make that the sufficient bar of two articular processes can carry out on, down and before, the translational adjustment of back side.
2, by the described three-dimensional locator for pedicle for cervical vertebra arch of claim 1, it is characterized in that described two arm bars or monolayer bar, or be double-deck bar, they all have vertical long groove, correspondingly, cross intersection frame also is double-deck, and their upper end is all hinged with the upper end of double-deck arm bar, their lower end all is slidingly connected in the vertical long groove of double-deck arm bar by connecting pin, and the two rear force armed levers upper end integral body of double-deck arm bar is connected with the lateral mass foot.
3, by the described three-dimensional locator for pedicle for cervical vertebra arch of claim 1, the lower end integral body that it is characterized in that described middle sliding plate is connected with horizontal arc, these arc both sides have arc sliding rail groove, and the lower end of double-deck arm bar is slidingly connected in the both sides rail groove of the horizontal arc in middle sliding plate lower end by connecting pin.
4, by the described three-dimensional locator for pedicle for cervical vertebra arch of claim 1, it is characterized in that described angle bow is tabular or bilateral tower structure, its middle part is provided with the bar shaped contiguous block, correspondingly, middle sliding plate middle part has vertical long groove, the bar shaped contiguous block surface raised line of angle bow just inserts in the vertically long groove of middle sliding plate, and contiguous block links to each other with middle sliding plate by fastening adjustment screws.
5, by the described three-dimensional locator for pedicle for cervical vertebra arch of claim 1, the support bracket that it is characterized in that described sight is a straight-bar, have long groove in the middle of it, there is a strip plate at its rear portion, the length of this strip plate is slightly larger than the width of angle bow, the angle bow is located between support bracket and the strip plate, and the strip plate upper/lower terminal is connected in the vertical long groove of support bracket by regulating trip bolt, integral body is connected with the drill bit guide pipe in the upper end of support bracket, a side parallel alignment of the centrage of drill bit guide pipe and support bracket.
6, by the described three-dimensional locator for pedicle for cervical vertebra arch of claim 1, the adjusting screw(rod) that it is characterized in that described articular process foot bar is a long bolt, they have four, two of one sides, the screw portion of long bolt is threaded with the corresponding screw on double-deck arm bar top, the long groove of articular process foot bar is passed at the rear portion of long bolt, and the position of long bolt rear portion corresponding articular process foot bar front surface is installed with spacing shim, and the termination of passing the long groove of the sufficient bar of articular process at long bolt rear portion is with nut and stressed joint.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CNB021125767A CN1141065C (en) | 2002-01-22 | 2002-01-22 | Three-dimensional locator for pedicle for cervical vertebra arch |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CNB021125767A CN1141065C (en) | 2002-01-22 | 2002-01-22 | Three-dimensional locator for pedicle for cervical vertebra arch |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN1360878A CN1360878A (en) | 2002-07-31 |
| CN1141065C true CN1141065C (en) | 2004-03-10 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CNB021125767A Expired - Fee Related CN1141065C (en) | 2002-01-22 | 2002-01-22 | Three-dimensional locator for pedicle for cervical vertebra arch |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN1141065C (en) |
Families Citing this family (8)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101869506B (en) * | 2010-07-28 | 2011-07-20 | 徐兆万 | Cervical pedicle screw alignment apparatus |
| CN102018527B (en) * | 2010-11-12 | 2012-09-05 | 北京航空航天大学 | Vertebral column three-dimensional dynamic measurement and analysis system and method |
| CN104138292B (en) * | 2013-05-10 | 2016-08-17 | 陈德路 | Bilateral pedicle screw horizontal plane angle and sagittal plane footmark show apparatus |
| CN104939905B (en) * | 2014-03-24 | 2017-09-29 | 中国人民解放军第二军医大学 | Atlas and axis pedicle of vertebral arch screw nail guider |
| CN105852986B (en) * | 2016-04-11 | 2018-03-20 | 庄源东 | Three-dimension virtual reality fitting pedicle nail inserts laser assisted position guiding device |
| CN106963411B (en) * | 2017-03-29 | 2023-05-23 | 四川大学华西医院 | CT arm off-body bracket system and control method thereof |
| CN108888409B (en) * | 2018-05-24 | 2020-11-03 | 刘�文 | Otolaryngology branch of academic or vocational study is clinical in operation device |
| CN109124831A (en) * | 2018-07-18 | 2019-01-04 | 兰州大学 | Skull repairing titanium net and preparation method thereof |
-
2002
- 2002-01-22 CN CNB021125767A patent/CN1141065C/en not_active Expired - Fee Related
Also Published As
| Publication number | Publication date |
|---|---|
| CN1360878A (en) | 2002-07-31 |
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According to article 9 of the patent law and article 13 of the detailed rules for the implementation of the patent law: 2112576.7 of the invention patents in this issue as a notice of authorization, and at the same time corresponding to the 2218492.9 utility model patent to be given up, and in the 20 volume of the 10 issue of the new type of communique on the patent right to abandon the announcement. |
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