CN202161402U - Positioning frame for vertebral arch pedicle screws - Google Patents
Positioning frame for vertebral arch pedicle screws Download PDFInfo
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- CN202161402U CN202161402U CN2011202176221U CN201120217622U CN202161402U CN 202161402 U CN202161402 U CN 202161402U CN 2011202176221 U CN2011202176221 U CN 2011202176221U CN 201120217622 U CN201120217622 U CN 201120217622U CN 202161402 U CN202161402 U CN 202161402U
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- vertical pole
- pedicle screw
- cross bar
- annulus
- cross bars
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Abstract
The utility model provides a positioning frame for vertebral arch pedicle screws and relates to an auxiliary appliance for orthopedic surgeries. According to the positioning frame for the vertebral arch pedicle screw, two transverse rods are respectively mounted on a longitudinal rod; the two transverse rods can transversely move left and right respectively, further, at least one transverse rod can move up and down; a circular ring which can be sleeved at the vertebral arch pedicle screw in a penetrating way is arranged at the free end of each of the two transverse rods which is far away from the longitudinal rod; and each of the two circular rings is provided with an opening, wherein the two openings remotely correspond to each other. The positioning frame can accurately mark down the specific positions of vertebral arch pedicle screws for each vertebral body to be treated on the skin of the back of a patient through being matched with perspective equipment, and is suitable for the skin incision and the arranging of the vertebral arch pedicle screws at the positions in vertebral minimally-invasive surgeries.
Description
Technical field
This utility model relates to the assistive device that a kind of bone surgery is used, and particularly relates to the assistive device that the art prelocalization is carried out in the position of pedicle screw in a kind of vertebra Minimally Invasive Surgery.
Background technology
Orthopaedics is in treatment during spinal cord injury, needs to use pedicle screw to carry out vertebra Minimally Invasive Surgerys such as one-sided fixing, the vertebral body plastic operation of vertebra.Because the difference of individual patients skeleton; The vertebral body width and the length of everyone vertebra are all inequality; In the past, at the art prelocalization particular location of employed pedicle screw on two vertebral bodys up and down, needed to cooperate fluoroscopic apparatus irradiation patient vertebra; The particular location of respectively each vertebral body being gone up employed pedicle screw is confirmed and is used two draw points on the skin of patient's back, to put into cross, roughly writes down this position.Then, respectively above-mentioned two draw points are taken away in this position of each vertebral body, row skin incision and installing pedicle screw.But, each vertebral body taken away above-mentioned two draw points after, go the deviation that skin incision can bad student's memory again, depart from original localized position, need to go again skin incision when serious, the phenomenon of invalid otch promptly takes place.
The utility model content
This utility model aims to provide a kind of pedicle screw locating rack; Can cooperate fluoroscopic apparatus on the skin of patient's back, respectively each vertebral body to be treated accurately to be write down the particular location of pedicle screw, and in the suitable vertebra Minimally Invasive Surgery this position row skin incision and the installing pedicle screw.
The technical scheme of this utility model is: the pedicle screw locating rack, two cross bars are installed in respectively on the vertical pole, these two cross bars can distinguish left and right laterally move and wherein at least one cross bar can upper and lowerly move; Above-mentioned two cross bars are respectively equipped with the annulus that can wear pedicle screw away from the free termination of above-mentioned vertical pole, respectively have a gap on these two annulus with standing opposite each other at a distance.
Upper and lower moving with left and right through cross bar moved; Cooperate fluoroscopic apparatus; Be convenient to different individual patients are regulated the location of pedicle screw according to the vertebral body width and the length of its vertebra; And on the skin of patient's back, respectively each vertebral body to be treated is accurately write down the particular location of pedicle screw with the annulus on the cross bar, and set gap is fit in the vertebra Minimally Invasive Surgery at this position row skin incision on the annulus.And annulus can guide the doctor accurately to install pedicle screw.
The middle part of described two cross bars is installed in respectively on the described vertical pole; Two free terminations of every said cross bar are respectively equipped with the annulus that can wear pedicle screw; Respectively have a gap on described two cross bars on two annulus of the same side with standing opposite each other at a distance.This cross bar both sides are provided with the structure of annulus, both have been fit to the location that nail is advanced in the vertebra left side, also are fit to the location that nail is advanced on the vertebra right side; Before the art of vertebra Minimally Invasive Surgery this utility model is lain on the skin of patient's back, vertical pole is aimed at patient's spinal column and is put well along hindering vertebra, just can position operation, uses simply facility.
Described vertical pole is provided with the medial launder of upper and lower extension and left and right perforation; Described two cross bars are placed through respectively in the medial launder of said vertical pole; Two bolts pass the cross bar of a vertical pole and a correspondence respectively, and the cross bar with correspondence is fixed on the described vertical pole respectively.The good integrity of this structure, in the time of can release bolt not occurring in the art, bolt falling and cross bar break away from the extreme phenomenon of vertical pole, so safety, good reliability.
Described two cross bars are respectively equipped with the horizontal guide groove of left and right extension and forward and backward perforation; Two bolts pass the horizontal guide groove of a vertical pole and a corresponding cross bar respectively, respectively two cross bars are fixed on the described vertical pole.In this version, bolt promptly is the left and right mobile locating part of cross bar, is again the securing member of locking cross bar and vertical pole position.So simple in structure, and good reliability.
Described vertical pole is provided with the vertical guide groove of upper and lower extension and forward and backward perforation; Bolt passes vertical guide groove and the cross bar of a correspondence on the vertical pole, and this cross bar is fixed on the described vertical pole.In this version, bolt promptly is the upper and lower mobile locating part of cross bar, is again the securing member of locking cross bar and vertical pole position.So simple in structure, and good reliability.
This utility model pedicle screw locating rack; Adopt above-mentioned structure; Solved the particular location of on the skin of patient's back, respectively each vertebral body to be treated accurately being write down pedicle screw; At this position row skin incision, reach the problem that the guiding doctor accurately installs pedicle screw in the suitable vertebra Minimally Invasive Surgery.It has following significant advantage: 1, and the location more accurately, does not effectively influence otch, makes effective otch Wicresoft more.2, cross bar (location adjusting rod) can about, inside and outside slip, be convenient to the localized adjusting of different individual patients pedicle screws.3, the cross bar termination has the toroidal design of gap, makes the locating rack of need not moving away behind the location can between the gap of annulus, go skin incision, avoids the generation of invalid otch.
Description of drawings
Fig. 1 is the Facad structure sketch map of vertical pole among first embodiment of this utility model pedicle screw locating rack.
Fig. 2 is the structural representation of A-A section among Fig. 1.
Fig. 3 is the Facad structure sketch map of cross bar among first embodiment of this utility model pedicle screw locating rack.
Fig. 4 is the Facad structure sketch map of bolt among first embodiment of this utility model pedicle screw locating rack.
Fig. 5 is the side structure sketch map of bolt among embodiment of this utility model pedicle screw locating rack.
Fig. 6 is the Facad structure sketch map of first embodiment of this utility model pedicle screw locating rack.
Fig. 7 is the structural representation of B-B section among Fig. 6.
Fig. 8 is the side structure sketch map of Fig. 6 embodiment.
Fig. 9 is the structural representation at Fig. 6 embodiment back side.
Figure 10 is the Facad structure sketch map of vertical pole among second embodiment of this utility model pedicle screw locating rack.
Figure 11 is the structural representation of C-C section among Figure 10.
Figure 12 is the Facad structure sketch map of cross bar among second embodiment of this utility model pedicle screw locating rack.
Figure 13 is the Facad structure sketch map of bolt among second embodiment of this utility model pedicle screw locating rack.
Figure 14 is the Facad structure sketch map of second embodiment of this utility model pedicle screw locating rack.
Figure 15 is the structural representation of D-D section among Figure 14.
Figure 16 is the side structure sketch map of Figure 14 embodiment.
Figure 17 is the structure sketch map of Figure 14 embodiment.
The specific embodiment
One, embodiment one
The Facad structure of first embodiment of this utility model pedicle screw locating rack, as shown in Figure 6, this pedicle screw locating rack is made up of a vertical pole 1, two cross bars 2, two bolts 3 and two nuts 4.They are all processed with stainless steel, the use of can sterilizing repeatedly.
Before the use; Please referring to Fig. 6, Fig. 7, Fig. 8 and Fig. 9; Two cross bars 2 are placed through respectively in the medial launder 13 of vertical pole 1, and the gap 24 on two cross bars 2 on two annulus 23 of the same side stands opposite each other at a distance, and the gap 26 on two cross bars 2 on two annulus 25 of opposite side stands opposite each other at a distance.The tail medicated cap 31 of two bolts 3 is arranged in the vertical guide groove 11 of vertical pole 1; The threaded portion 33 of two bolts 3 is passed the vertical guide groove 11 of vertical pole 1 and the horizontal guide groove 22 of a corresponding cross bar 2 respectively; Because separately the restriction of platform 34 and the horizontal guide groove 22 of corresponding cross bar 2 on the threaded portion 33 of each bolt 3, two cross bars 2 are distinguished in the medial launder 13 of vertical pole 1 only relative to each self-corresponding bolt 3 is left and right and are laterally moved; Because separately the restriction of platform 32 and the vertical guide groove 11 of vertical pole 1 on the tail medicated cap 31 of each bolt 3, two cross bars 2 are only with vertical guide groove 11 upper and lower move of each self-corresponding bolt 3 along vertical pole 1.Two bolts 3 screw togather with corresponding nut 4 respectively, and they are respectively from former and later two directions extruding vertical pole 1 and each self-corresponding cross bar 2, with two cross bar 2 almost fixed on vertical pole 1.
During use, present embodiment is lain on the skin of patient's back, vertical pole 1 is aimed at patient's spinal column, puts well along hindering vertebra.Loosen two nuts 4 on the bolt 3.With reference to the scale 12 of vertical pole 1 and cooperate fluoroscopic apparatus; Vertebral body width and length according to patient's vertebra are adjusted the corresponding cross bar 2 of present embodiment to each vertebral body to be treated respectively; Make their use the center of the corresponding pedicle screw of centrally aligned of annulus 23 or the annulus 25 of side; Lock the nut 4 on two bolts 3; The annulus 23 of two cross bar 2 use sides or the vertebral body that annulus 25 is treated treatment are respectively accurately write down the particular location of pedicle screw, have realized the art prelocalization of vertebra Minimally Invasive Surgery.The present embodiment of need not moving away behind the location can use between the gap 26 of gap 24 or annulus 25 of annulus 23 of sides the row skin incision and according to upper cross bar 2 annulus 23 or annulus 25 installing top pedicle screws in present embodiment upper cross bar 2.Use between the gap 26 of gap 24 or annulus 25 of annulus 23 of sides the row skin incision in present embodiment lower crosspiece 2 and according to lower crosspiece 2 annulus 23 or annulus 25 installing bottom pedicle screws.Present embodiment location accurately, does not effectively influence otch, makes effective otch Wicresoft more.
Two, embodiment two
Second embodiment of this utility model pedicle screw locating rack is the simple version of last embodiment.Its Facad structure, shown in figure 14, this pedicle screw locating rack is made up of a vertical pole 100, two cross bars 200, two bolts 300 and two nuts 400.They are all processed with stainless steel, the use of can sterilizing repeatedly.
Please referring to Figure 10 and Figure 11: 110 millimeters of vertical pole 100 (claiming main scale again) length overalls, wide 10 millimeters, thick 4 millimeters.The upper end of vertical pole 100 is provided with via hole 110, and the middle part is to the vertical guide groove 120 that has upper and lower extension and forward and backward perforation, on the front surface along vertically being uniformly distributed with from 0 to 9 totally 10 scales 130.Vertical pole 100 back are provided with the groove 140 of upper and lower extension and left and right perforation.Via hole 110 and vertical guide groove 120 are contained in the two ends of groove 140.
Cross bar 200 (claiming adjusting rod again), please referring to Figure 12: 40 millimeters of cross bar 200 length overalls, thick 2 millimeters, the elongated main body 210 of cross bar 200 1 sides is wide 7 millimeters.Main body 210 is provided with the horizontal guide groove 220 of left and right extension and forward and backward perforation.A free termination of cross bar 200 is provided with the annulus 230 that can wear pedicle screw; Annulus 230 deflects away from main body 210 to the same side, and has a gap 240 at the point midway that annulus 230 deflects away from.
Please referring to Figure 13: the tail medicated cap 310 of bolt 300 is for protruding in the outward flange of threaded portion 320.
Before the use, please referring to Figure 14, Figure 15, Figure 16 and Figure 17, two cross bars 200 are placed on respectively in the groove 140 of vertical pole 100, and the gap 240 on two annulus 230 on two cross bars 200 stands opposite each other at a distance.The tail medicated cap 310 of a bolt 300 after, the horizontal guide groove 220 of a cross bar 200 and the via hole 110 of vertical pole 100 are passed in threaded portion 320; Make that this cross bar 200 can be in vertical pole 100 upper ends relative to these bolt 300 left and right moving.The tail medicated cap 310 of another bolt 300 after; The horizontal guide groove 220 of another root cross bar 200 and the vertical guide groove 120 of vertical pole 100 are passed in threaded portion 320; This root cross bar 200 can be distinguished in the groove 140 of vertical pole 100 relative to its corresponding bolt 300 is left and right and laterally moves, also can be with vertical guide groove 120 upper and lower move of its corresponding bolt 300 along vertical pole 100.Two bolts 300 screw togather with corresponding nut 400 respectively, and they are respectively from former and later two directions extruding vertical pole 100 and each self-corresponding cross bar 200, with two cross bar 200 almost fixed on vertical pole 100.
During use, present embodiment is lain on the skin of patient's back, vertical pole 100 is aimed at patient's spinal column, puts well along hindering vertebra.Loosen two nuts 400 on the bolt 300.With reference to the scale 130 of vertical pole 100 and cooperate fluoroscopic apparatus; Vertebral body width and length according to patient's vertebra are adjusted the corresponding cross bar 200 of present embodiment to each vertebral body to be treated respectively; Make earlier that upper cross bar 200 is left and right laterally to be moved, make the center of the corresponding pedicle screw of centrally aligned of the annulus 230 of upper cross bar 200; Lower crosspiece 200 upper and lower moving with left and right are laterally moved; Make the center of the corresponding pedicle screw of centrally aligned of the annulus 230 of lower crosspiece 200; Lock the nut 400 on two bolts 300; The vertebral body that the annulus 230 of two cross bars 200 is treated treatment is accurately write down the particular location of pedicle screw, has realized the art prelocalization of vertebra Minimally Invasive Surgery.The present embodiment of need not moving away behind the location, can be between the gap 240 of upper cross bar 200 annulus 230 of present embodiment row skin incision and according to the pedicle screw on upper cross bar 200 annulus 230 installing tops.Row skin incision and between the gap 240 of lower crosspiece 200 annulus 230 of present embodiment according to the pedicle screw of lower crosspiece 200 annulus 230 installing bottoms.Present embodiment location accurately, does not effectively influence otch, makes effective otch Wicresoft more.
The above is merely this utility model preferred embodiment, does not limit the scope that this utility model is implemented with this, and the equivalence of doing according to the technical scheme and the description of this utility model changes and modification, all should belong to the scope that this utility model is contained.
Claims (5)
1. pedicle screw locating rack, it is characterized in that: two cross bars are installed in respectively on the vertical pole, these two cross bars can distinguish left and right laterally move and wherein at least one cross bar can upper and lowerly move; Above-mentioned two cross bars are respectively equipped with the annulus that can wear pedicle screw away from the free termination of above-mentioned vertical pole, respectively have a gap on these two annulus with standing opposite each other at a distance.
2. pedicle screw locating rack according to claim 1 is characterized in that: the middle part of described two cross bars is installed in respectively on the described vertical pole; Two free terminations of every said cross bar are respectively equipped with the annulus that can wear pedicle screw; Respectively have a gap on described two cross bars on two annulus of the same side with standing opposite each other at a distance.
3. pedicle screw locating rack according to claim 2 is characterized in that: described vertical pole is provided with the medial launder of upper and lower extension and left and right perforation; Described two cross bars are placed through respectively in the medial launder of said vertical pole; Two bolts pass the cross bar of a vertical pole and a correspondence respectively, and the cross bar with correspondence is fixed on the described vertical pole respectively.
4. pedicle screw locating rack according to claim 1 is characterized in that: described two cross bars are respectively equipped with the horizontal guide groove of left and right extension and forward and backward perforation; Two bolts pass the horizontal guide groove of a vertical pole and a corresponding cross bar respectively, respectively two cross bars are fixed on the described vertical pole.
5. according to claim 1 or 2 or 3 or 4 described pedicle screw locating racks, it is characterized in that: described vertical pole is provided with the vertical guide groove of upper and lower extension and forward and backward perforation; Bolt passes vertical guide groove and the cross bar of a correspondence on the vertical pole, and this cross bar is fixed on the described vertical pole.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2011202176221U CN202161402U (en) | 2011-06-23 | 2011-06-23 | Positioning frame for vertebral arch pedicle screws |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2011202176221U CN202161402U (en) | 2011-06-23 | 2011-06-23 | Positioning frame for vertebral arch pedicle screws |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN202161402U true CN202161402U (en) | 2012-03-14 |
Family
ID=45797259
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN2011202176221U Expired - Fee Related CN202161402U (en) | 2011-06-23 | 2011-06-23 | Positioning frame for vertebral arch pedicle screws |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN202161402U (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103169535A (en) * | 2013-01-30 | 2013-06-26 | 南京医科大学第一附属医院 | Vertebral pedicle positioner for spinal column posterior approach minimally-invasive screw fixation |
| CN107361822A (en) * | 2017-06-30 | 2017-11-21 | 陈琦 | Ultrasonic guidance S3Sacral nerve positioner and localization method |
-
2011
- 2011-06-23 CN CN2011202176221U patent/CN202161402U/en not_active Expired - Fee Related
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103169535A (en) * | 2013-01-30 | 2013-06-26 | 南京医科大学第一附属医院 | Vertebral pedicle positioner for spinal column posterior approach minimally-invasive screw fixation |
| CN107361822A (en) * | 2017-06-30 | 2017-11-21 | 陈琦 | Ultrasonic guidance S3Sacral nerve positioner and localization method |
| CN107361822B (en) * | 2017-06-30 | 2024-04-16 | 西安交通大学医学院第二附属医院 | Ultrasound guided S 3 Sacral nerve positioning device and positioning method |
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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: 20120314 Termination date: 20120623 |