CN202270060U - Vertebral pedicle bolt angle locater - Google Patents
Vertebral pedicle bolt angle locater Download PDFInfo
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- CN202270060U CN202270060U CN2011203400474U CN201120340047U CN202270060U CN 202270060 U CN202270060 U CN 202270060U CN 2011203400474 U CN2011203400474 U CN 2011203400474U CN 201120340047 U CN201120340047 U CN 201120340047U CN 202270060 U CN202270060 U CN 202270060U
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Abstract
The utility model discloses a vertebral pedicle bolt angle locater, which comprises a strut, a cross bar, a horizontal expansion bar and a support plate, wherein two mutually-parallel horizontal angle disks are vertically erected on the support plate and are connected with sagittal view angle disks; the sagittal view angle disks can rotate around a connecting shaft and are connected with a bolt guiding sleeve; and therefore, according to the vertebral pedicle bolt angle locater, the angle of a horizontal position angle and the angle of the sagittal view angle can be determined in sequence, and the bolt feeding direction of a vertebral pedicle bolt can be assisted to be accurately mastered by the vertebral pedicle bolt angle locater so as to effectively reduce the misplacing rate of the vertebral pedicle bolt.
Description
Affiliated technical field
This utility model relates to a kind of angle orientation appearance technical field.
Background technology
Over nearly 30 years; The short segment internal fixation of spine; Particularly the pedicle internal fixation system has obtained extensive use in the operation of breast lumbar disc disease; Because the pedicle screw internal fixing system has that short segment is fixed, preservation spinal motion segment and good advantages such as biomechanics characteristic as far as possible.Yet traditional pedicle screw implanted prosthetics depends on anatomic landmark identification and patient's experience, even experienced spinal surgery doctor also exists the not good possibility in pedicle screw position.Have report to show, according to dissect implant pedicle screw in the location the misplace rate 20%～30%.So high misplace rate brings postoperative complication will certainly for a large amount of patients; Let the patient suffer huge body and mind infringement; How could avoid the pedicle screw misplace to take place effectively; Existing in the past scholar has made big quantity research to the implantation of auxiliary pedicle screw, as bringing out current potential, spinal surgery navigation system etc. in C type arm X-ray perspective, the art in the art.Recently, spinal column pedicle of vertebral arch location digitized navigation template is is also successfully researched and developed and is applied to clinical.The advanced technology that these auxiliary pedicle screws are implanted lets the misplace rate of pedicle screw reduce greatly, but these technology all need higher equipment cost, be difficult in basic hospital and popularize, and operating process is loaded down with trivial details, operating time long, technology is difficult for grasping.The horizontal parallactic angle of width, length, pedicle of vertebral arch, the isoparametric research of pedicle of vertebral arch sagittal parallactic angle that also have the scholar to carry out in the MSCT reconstructed picture measuring pedicle of vertebral arch are advanced nail in order to instruct pedicle of vertebral arch, but the randomness when measuring is stronger, and repeatability is not high.Though CT measures the conventional pre-operative surgical design for scheme that is used for the pedicle internal fixation of pedicle nail road parameter, still there is not a kind of measuring process of well accepted comparatively standard at present.
Summary of the invention
In order to overcome the experience that traditional pedicle screw implanted prosthetics depends on anatomic landmark identification and patient; Even experienced spinal surgery doctor also exists the not good possibility in pedicle screw position; There is the higher deficiency of misplace rate; This utility model provides a kind of pedicle screw angle orientation appearance, this pedicle screw angle orientation appearance can assist in the art accurately hold pedicle screw advance to follow closely direction, thereby reduce the misplace rate of pedicle screw effectively.
It is that a kind of pedicle screw angle orientation appearance comprises support bar that this utility model solves the technical scheme that its technical problem adopted; Also comprise cross bar, the rear end of cross bar has the longitudinal hole that is complementary with support bar, and the longitudinal hole of cross bar is enclosed within post upper; The longitudinal hole position of cross bar is provided with hold-down nut, and the front end of cross bar has the transverse holes that is complementary with horizontal expansion link, and an end of horizontal expansion link is enclosed within the transverse holes; The other end is fixed with gripper shoe, and the transverse holes position is provided with hold-down nut, stands vertically two horizontal angle scales that are parallel to each other on the gripper shoe; The horizontal angle scale is provided with central shaft hole and is the arc chute in the center of circle with the central shaft hole; The both sides, lower end of sagittal plain angle scale are provided with connecting axle, and connecting bushing is in the central shaft hole of horizontal angle scale, and the sagittal plain angle scale can rotate along connecting axle; The horizontal angle scale is provided with the circular arc angle index that central shaft hole is the center of circle; The both sides, top of sagittal plain angle scale and the position that arc chute is complementary are provided with screw rod, and screw rod protrudes outside arc chute, and screw rod is provided with hold-down nut; Semicircle angle index is arranged on the sagittal plain angle scale; Guide pin sleeve lower end is movably connected on the home position of the semicircle angle index of sagittal plain angle scale with screw, and the center of circle that the sagittal plain angle scale is provided with semicircle angle index is the arc chute in the center of circle, and the position that telescopic top of guide pin and arc chute are complementary is provided with screw rod; The screw rod protrusion is outside arc chute, and screw rod is provided with hold-down nut.
The lower end of support bar is connected with draw-in groove, and draw-in groove is provided with hold-down nut.
The cross section of the transverse holes of horizontal expansion link and cross bar is rectangular shape.
Because this pedicle screw angle orientation appearance comprises support bar, cross bar, horizontal expansion link, gripper shoe; Stand vertically two horizontal angle scales that are parallel to each other on the gripper shoe; Be connected with the sagittal plain angle scale on the horizontal angle scale; The sagittal plain angle scale can rotate along connecting axle, is connected with the guide pin sleeve on the sagittal plain angle scale, so this this pedicle screw angle orientation appearance can successively be confirmed the angle of horizontal parallactic angle and sagittal parallactic angle; Can assist in the art accurately hold pedicle screw advance to follow closely direction, thereby reduce the misplace rate of pedicle screw effectively.
Description of drawings
Below in conjunction with accompanying drawing and embodiment this utility model is described further.
Fig. 1 is the structure chart of embodiment pedicle screw angle orientation appearance.
Fig. 2 is the side-looking structure chart of embodiment pedicle screw angle orientation appearance.
Fig. 3 is the structure chart of embodiment sagittal plain angle scale.
Fig. 4 is the structure chart of embodiment horizontal angle scale.
The specific embodiment
To shown in Figure 4, a kind of pedicle screw angle orientation appearance comprises support bar 3 like Fig. 1; Also comprise cross bar 9, the rear end of cross bar 9 has the longitudinal hole 20 that is complementary with support bar 3, and the longitudinal hole 20 of cross bar 9 is enclosed within support bar 3 upper ends; Longitudinal hole 20 positions of cross bar 9 are provided with hold-down nut 11; The front end of cross bar 9 has the transverse holes 19 that is complementary with horizontal expansion link 15, and an end of horizontal expansion link 15 is enclosed within the transverse holes 19, and the other end is fixed with gripper shoe 12; Transverse holes 19 positions are provided with hold-down nut 10, and the cross section of the transverse holes of horizontal expansion link 15 and cross bar 9 is rectangular shape.Stand vertically two horizontal angle scales 5 that are parallel to each other on the gripper shoe 12; Horizontal angle scale 5 is provided with central shaft hole 13 and is the arc chute 6 in the center of circle with central shaft hole 13; The both sides, lower end of sagittal plain angle scale 7 are provided with connecting axle 16, and connecting axle 16 is enclosed within the central shaft hole 13 of horizontal angle scale 5, and sagittal plain angle scale 7 can rotate along connecting axle 16; Horizontal angle scale 5 is provided with central shaft hole 13 and is the circular arc angle index in the center of circle; The position that the both sides, top of sagittal plain angle scale 7 and arc chute 6 are complementary is provided with screw rod 18, and screw rod 18 protrusions are outside arc chute 6, and screw rod 18 is provided with hold-down nut 14; Semicircle angle index is arranged on the sagittal plain angle scale 7; Guide pin sleeve 8 lower ends are movably connected on the home position 17 of the semicircle angle index of sagittal plain angle scale 7 with screw, the center of circle 17 that sagittal plain angle scale 7 is provided with semicircle angle index is the arc chute 4 in the center of circle, and the position that the top of guide pin sleeve 8 and arc chute 4 are complementary is provided with screw rod; The screw rod protrusion is outside arc chute 4, and screw rod is provided with hold-down nut.Guide pin sleeve 8 can home position 17 be that central point slides along chute 4, and when guide pin sleeve 8 pointed to correct angle, the nut at the rear of can screwing was with fixation guide pin sleeve 8.The lower end of support bar is connected with draw-in groove 2, and draw-in groove 2 is provided with hold-down nut 1.During use, draw-in groove 2 packs on the outstanding edge of bed in operation table both sides, move to ideal position after, the nut 1 that is tightened makes its fixed-site.Through cross bar 9 slidable adjustment upright position on support bar 3, it is fixing with hold-down nut 11 to mix up the back then.Through horizontal expansion link 15 slidable adjustment horizontal level in transverse holes 19, it is fixing with hold-down nut 10 to mix up the back then.Then, slip sagittal plain angle scale 7 makes sagittal plain angle scale 7 rotate around connecting axle 16, regulates the angle of inclination of slip sagittal plain angle scale 7, and it is fixing with hold-down nut 14 to mix up the back.Guide pin sleeve 8 on the sagittal plain of sliding the then angle scale makes guide pin sleeve 8 rotate around home position 17, regulates the angle of inclination of guide pin sleeve 8, mixes up the back and fixes with hold-down nut.So far, pedicle screw to advance to follow closely direction definite.Kirschner wire is inserted the guide pin sleeve, and the location is implanted pedicle nail afterwards in advance.Therefore this this pedicle screw angle orientation appearance can successively be confirmed the angle of horizontal parallactic angle and sagittal parallactic angle, and that can assist accurate assurance pedicle screw in the art advances to follow closely direction, thereby reduces the misplace rate of pedicle screw effectively.
Claims (3)
1. a pedicle screw angle orientation appearance comprises support bar (3), it is characterized in that: also comprise cross bar (9); The longitudinal hole (20) that the rear end of cross bar (9) has and support bar (3) is complementary; The longitudinal hole (20) of cross bar (9) is enclosed within support bar (3) upper end, and longitudinal hole (20) position of cross bar (9) is provided with hold-down nut (11), and the front end of cross bar (9) has the transverse holes (19) that is complementary with horizontal expansion link (15); One end of horizontal expansion link (15) is enclosed within the transverse holes (19); The other end is fixed with gripper shoe (12), and transverse holes (19) position is provided with hold-down nut (10), stands vertically two horizontal angle scales (5) that are parallel to each other on the gripper shoe (12); Horizontal angle scale (5) is provided with central shaft hole (13) and is the arc chute (6) in the center of circle with central shaft hole (13); The both sides, lower end of sagittal plain angle scale (7) are provided with connecting axle (16), and connecting axle (16) is enclosed within the central shaft hole (13) of horizontal angle scale (5), and sagittal plain angle scale (7) can rotate along connecting axle (16); Horizontal angle scale (5) is provided with central shaft hole (13) and is the circular arc angle index in the center of circle; The position that the both sides, top of sagittal plain angle scale (7) and arc chute (6) are complementary is provided with screw rod (18), and screw rod (18) protrudes outside arc chute (6), and screw rod (18) is provided with hold-down nut (14); The sagittal plain angle scale has semicircle angle index on (7); Guide pin sleeve (8) lower end is movably connected on the home position (17) of the semicircle angle index of sagittal plain angle scale (7) with screw, the center of circle (17) that sagittal plain angle scale (7) is provided with semicircle angle index is the arc chute (4) in the center of circle, and the position that the top of guide pin sleeve (8) and arc chute (4) are complementary is provided with screw rod; The screw rod protrusion is outside arc chute (4), and screw rod is provided with hold-down nut.
2. pedicle screw angle orientation appearance according to claim 1 is characterized in that: the lower end of support bar is connected with draw-in groove (2), and draw-in groove (2) is provided with hold-down nut (1).
3. pedicle screw angle orientation appearance according to claim 2 is characterized in that: the cross section of the transverse holes of horizontal expansion link (15) and cross bar (9) is rectangular shape.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2011203400474U CN202270060U (en) | 2011-09-04 | 2011-09-04 | Vertebral pedicle bolt angle locater |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2011203400474U CN202270060U (en) | 2011-09-04 | 2011-09-04 | Vertebral pedicle bolt angle locater |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN202270060U true CN202270060U (en) | 2012-06-13 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN2011203400474U Expired - Fee Related CN202270060U (en) | 2011-09-04 | 2011-09-04 | Vertebral pedicle bolt angle locater |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN202270060U (en) |
Cited By (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106510830A (en) * | 2016-10-12 | 2017-03-22 | 河北医科大学第三医院 | Adjustable guiding device for imbedding pedicle screw |
| CN106691590A (en) * | 2016-12-22 | 2017-05-24 | 上海脊光医疗科技有限公司 | Intelligent navigation device for minimally invasive percutaneous pedicle screw placement |
| CN107007344A (en) * | 2017-05-31 | 2017-08-04 | 上海光韵达数字医疗科技有限公司 | Percutaneously put nail guide plate |
| CN107518936A (en) * | 2017-08-23 | 2017-12-29 | 上海交通大学医学院附属第九人民医院 | Full vertebral arch pedicle of vertebral column abutment sleeve |
| CN111281523A (en) * | 2020-03-05 | 2020-06-16 | 丁培东 | Adjustable guider for implanting pedicle screw |
-
2011
- 2011-09-04 CN CN2011203400474U patent/CN202270060U/en not_active Expired - Fee Related
Cited By (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106510830A (en) * | 2016-10-12 | 2017-03-22 | 河北医科大学第三医院 | Adjustable guiding device for imbedding pedicle screw |
| CN106691590A (en) * | 2016-12-22 | 2017-05-24 | 上海脊光医疗科技有限公司 | Intelligent navigation device for minimally invasive percutaneous pedicle screw placement |
| CN106691590B (en) * | 2016-12-22 | 2023-03-24 | 上海脊光医疗科技有限公司 | Intelligent navigation device for minimally invasive percutaneous pedicle screw implantation |
| CN107007344A (en) * | 2017-05-31 | 2017-08-04 | 上海光韵达数字医疗科技有限公司 | Percutaneously put nail guide plate |
| CN107518936A (en) * | 2017-08-23 | 2017-12-29 | 上海交通大学医学院附属第九人民医院 | Full vertebral arch pedicle of vertebral column abutment sleeve |
| CN107518936B (en) * | 2017-08-23 | 2024-04-23 | 上海交通大学医学院附属第九人民医院 | Full backbone pedicle of vertebral arch positioning sleeve |
| CN111281523A (en) * | 2020-03-05 | 2020-06-16 | 丁培东 | Adjustable guider for implanting pedicle screw |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20120613 Termination date: 20140904 |
|
| EXPY | Termination of patent right or utility model |