CN204863377U - Clamping orient pincers are implanted to backbone pedicle of vertebral arch screw - Google Patents
Clamping orient pincers are implanted to backbone pedicle of vertebral arch screw Download PDFInfo
- Publication number
- CN204863377U CN204863377U CN201520648622.5U CN201520648622U CN204863377U CN 204863377 U CN204863377 U CN 204863377U CN 201520648622 U CN201520648622 U CN 201520648622U CN 204863377 U CN204863377 U CN 204863377U
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- China
- Prior art keywords
- guide post
- guiding
- pedicle screw
- pincers
- positioning
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Abstract
The utility model provides a pair of clamping orient pincers are implanted to backbone pedicle of vertebral arch screw, including the friction clamp body with as the first guide bar of friction clamp body switching central line, with first guide bar mutually perpendicular's second guide bar, locate slider and locker on the second guide bar on same horizontal plane, the direction calibrated scale that is connected with the slider. The angle that this clamping orient pincers are implanted to backbone pedicle of vertebral arch screw can accurately quantify the pedicle of vertebral arch screw and implant shortens operation time, and C type arm X line machine is perspective repeatedly in the reduction art, easy operation, and easy the popularization has better clinical practical value.
Description
Technical field
This utility model relates to a kind of pedicle screw and implants special equipment, and especially a kind of pedicle screw implants positioning and guiding pincers.
Background technology
Pedicle screw internal fixation system has been widely used in the reconstruction of spinal stability, orthopedist needs to tilt certain angle when patient vertebral body is implanted into pedicle screw, can be obtained by image data and need the angle of inclination, but in operation process, do not have special equipment can indicate the angle instructing and need inclination, still rely on range estimation to judge angle of inclination pedicle screw in current most of hospital art, or make camp localizer location under C-arm X-ray machine perspective with metal needle is first-class.Due to range estimation there is certain error, camp localizer location is inaccurate, thus also exist pedicle screw implant angle error large, repeatedly need have an X-rayed adjustment pedicle screw and enter to follow closely direction, the problems such as around vital tissue organ, operating time be long may be damaged.The various navigator of orthopaedics accurately can instruct and put nail, but it universal of the price limit of its costliness.
Utility model content
The purpose of this utility model is to provide a kind of pedicle screw and implants positioning and guiding pincers, solves one or more in above-mentioned prior art problem.
Positioning and guiding pincers are implanted according to a kind of pedicle screw that this utility model provides, comprise friction clamp body and as friction clamp body opening and closing center line first guide post, in same level with the first guide post orthogonal second guide post, be located at the slide block on the second guide post and locker, the guiding graduated disc be connected with slide block.This pedicle screw implants the angle that positioning and guiding pincers precisely can quantize pedicle screw implantation, shortens operating time, reduces the perspective repeatedly of C-arm X-ray machine in art, simple to operate, is easy to promote, has good value for clinical application.
In some embodiments, the friction clamp body that pedicle screw implants positioning and guiding pincers is provided with closed latch, and its binding clip is subtend bidentate structure.This design makes pedicle screw implantation positioning and guiding clamp hold closely, is convenient to operation and quick and precisely effectively carries out.
In some embodiments, pedicle screw implants the first guide post of positioning and guiding pincers as the opening and closing center line of friction clamp body, is located at the top plane of friction clamp body, and is connected with friction clamp body by connecting axle.This design is in operation process, by regulating retaining part under C-arm x-ray body perspective, to make on the X-ray film of position, side the first guide post by the axis of pedicle of vertebral arch, thus promptly determine that the first guide post indicated direction is entering to follow closely direction and entering to follow closely position of vertebral sagittal, avoid and repeatedly locate, repeatedly have an X-rayed, shorten operating time.
In some embodiments, the first guide post of pedicle screw implantation positioning and guiding pincers is the median vertical line of the second guide post, and the second guide post is provided with scale; Simultaneously the mid point of the second guide post is provided with locker, the second guide post can be slided on the first guide post, and fix by locker, be located at two slide blocks slided in the second guide post both sides respectively in addition, and connects two slide blocks two respectively and to lead graduated disc.This design is in operation process, according to according to the distance preoperative image data obtaining two screw entrance points, the slip upper and lower on the first guide post of the second guide post can be passed through, and the relevant position of slide-and-guide graduated disc to the second guide post, make two graduated discs that lead to both sides screw entrance point, quick lock in entry point, shortens operating time, improves procedure efficiency.
In some embodiments, the guiding graduated disc that pedicle screw implants positioning and guiding pincers be 90 ° fan-shaped, its center of circle is positioned at the outside upper angle of slide block, and guiding graduated disc indicates the scale of 0 ° ~ 90 °.This design, in operation process, accurately can indicate and instruct pedicle screw implant angle, avoids repeatedly locating, and damage is vital tissue and organ around, shortens operating time simultaneously, improves success rate of operation.
Accompanying drawing explanation
Fig. 1 is this utility model structural representation;
Fig. 2 is the structural representation of friction clamp body of the present utility model.
Detailed description of the invention
Below in conjunction with Figure of description, this utility model is described in more detail.
As shown in Figure 1, a kind of pedicle screw that this utility model provides implants positioning and guiding pincers, comprise friction clamp body 1 and as friction clamp body 1 opening and closing center line first guide post 2, in same level with the first guide post 2 orthogonal second guide post 3, be located at the slide block 5 on the second guide post 3 and locker 6, the guiding graduated disc 4 be connected with slide block 5.This pedicle screw implants the angle that positioning and guiding pincers precisely can quantize pedicle screw implantation, shortens operating time, reduces the perspective repeatedly of C-arm X-ray machine in art, simple to operate, is easy to promote, has good value for clinical application.
The friction clamp body 1 that pedicle screw implants positioning and guiding pincers is provided with closed latch 9, and its binding clip 11 is subtend bidentate structure.It is more tight that this design makes pedicle screw implantation positioning and guiding clamp hold, and operation accurate and effective is carried out.
Pedicle screw implants the first guide post 2 of positioning and guiding pincers as the opening and closing center line of friction clamp body 1, is located at the top plane of friction clamp body 1, and is connected with friction clamp body 1 by connecting axle 10.This design is in operation process, by regulating retaining part under C-arm x-ray body perspective, to make on the X-ray film of position, side the first guide post 2 by the axis of pedicle of vertebral arch, thus promptly determine that the first guide post 2 indicated direction is entering to follow closely direction and entering to follow closely position of vertebral sagittal, avoid and repeatedly locate, repeatedly have an X-rayed, shorten operating time.
First guide post 2 of pedicle screw implantation positioning and guiding pincers is the median vertical line of the second guide post 3, and the second guide post 3 is provided with scale; The mid point of the second guide post 3 is provided with locker 6 simultaneously, second guide post 3 can be slided on the first guide post 2, and fix by locker 6, be located at two slide blocks 5 slided in the second guide post 3 both sides in addition respectively, and connect two slide block 5 liang guiding graduated disc 4 respectively.This design is in operation process, according to according to the distance preoperative image data obtaining two screw entrance points, the slip upper and lower on the first guide post 2 of the second guide post 3 can be passed through, and the relevant position of slide-and-guide graduated disc 4 to the second guide post 3, make two graduated disc 4 to both sides screw entrance points that lead, quick lock in entry point, shortens operating time, improves procedure efficiency.
Pedicle screw implant positioning and guiding pincers guiding graduated disc 4 be 90 ° fan-shaped, its center of circle is positioned at the outside upper angle of slide block 5, guiding graduated disc 4 indicates the scale of 0 ° ~ 90 °, mentioned herein and " the outside upper angle " of slide block 5 refer to the upper angle of two slide blocks 5 away from the limit of locker 6.This design, in operation process, accurately can indicate and instruct pedicle screw implant angle, avoids repeatedly locating, and damage is vital tissue and organ around, shortens operating time simultaneously, improves success rate of operation.
During use, pedicle screw is implanted positioning and guiding pincers friction clamp body 1 to be clipped in and to intend putting the horizontal level of nail cone spinous process root near pedicle of vertebral arch, retaining part is regulated under C-arm x-ray body perspective, to make on the X-ray film of position, side the first guide post 2 by the axis of pedicle of vertebral arch, then spinal fixation pedicle screw implant positioning and guiding pincers friction clamp body 1, thus the first guide post 2 indicated direction be vertebral sagittal enter to follow closely direction.Distance and pedicle screw horizontal plane according to preoperative image data obtaining two screw entrance points need the angle of inclination, two guiding graduated disc 4 to both sides screw entrance points are regulated according to the scale on the second guide post 3, with the angle index on two guiding graduated discs 4 for reference tilt pedicle screw, the angle of screw placement can be made accurate, avoid damage vital tissue and organ around.
This pedicle screw implantation positioning and guiding pincers elimination current pedicle of vertebral arch operates coarse when putting nail, judge the phenomenon with sensation, nail operation and perspective is put owing to not affecting, without the need to removing positioning and guiding pincers before pedicle screw is screwed into vertebral body, avoid repeatedly locating, repeatedly have an X-rayed, shorten operating time, improve success rate of operation.
More than statement is only optimal way of the present utility model; it should be pointed out that to those skilled in the art, under the prerequisite not departing from this utility model creation design; can also make some distortion and improvement, these also should be considered as within protection domain of the present utility model.
Claims (7)
1. a pedicle screw implants positioning and guiding pincers, it is characterized in that, comprise friction clamp body (1) and as friction clamp body (1) opening and closing center line first guide post (2), in same level with the first guide post (2) orthogonal second guide post (3), be located at the slide block (5) on the second guide post (3) and locker (6), the guiding graduated disc (4) be connected with slide block (5).
2. a kind of pedicle screw according to claim 1 implants positioning and guiding pincers, it is characterized in that, described friction clamp body (1) comprises finger ring (7), tong arm (8), closed latch (9), connecting axle (10) and binding clip (11); Described binding clip (11) is subtend bidentate structure.
3. a kind of pedicle screw according to claim 1 implants positioning and guiding pincers, it is characterized in that, described first guide post (2) is as the opening and closing center line of friction clamp body (1), be located at the top plane of friction clamp body (1), be connected with friction clamp body (1) by connecting axle (10).
4. a kind of pedicle screw according to claim 1 implants positioning and guiding pincers, it is characterized in that, described second guide post (3) is mutually vertical with the first guide post (2), make the second guide post (3) both sides body of rod length consistent, namely described first guide post (2) is the median vertical line of the second guide post (3); Described second guide post (3) is also provided with scale.
5. a kind of pedicle screw according to claim 1 implants positioning and guiding pincers, it is characterized in that, described locker (6) is located on the mid point of the second guide post (3), second guide post (3) in the upper slip of the first guide post (2), and can be fixed by locker (6).
6. a kind of pedicle screw according to claim 1 implants positioning and guiding pincers, and it is characterized in that, described slide block (5) is two, is located at respectively on the second guide post (3) both sides and slides; Described guiding graduated disc (4) is two, connects two slide blocks (5) respectively.
7. a kind of pedicle screw according to claim 6 implants positioning and guiding pincers, it is characterized in that, described guiding graduated disc (4) be 90 ° fan-shaped, its center of circle is positioned at the outside upper angle of described slide block (5); The scale of the upper sign 0 ° ~ 90 ° of described guiding graduated disc (4).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201520648622.5U CN204863377U (en) | 2015-08-25 | 2015-08-25 | Clamping orient pincers are implanted to backbone pedicle of vertebral arch screw |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201520648622.5U CN204863377U (en) | 2015-08-25 | 2015-08-25 | Clamping orient pincers are implanted to backbone pedicle of vertebral arch screw |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN204863377U true CN204863377U (en) | 2015-12-16 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201520648622.5U Expired - Fee Related CN204863377U (en) | 2015-08-25 | 2015-08-25 | Clamping orient pincers are implanted to backbone pedicle of vertebral arch screw |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN204863377U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN108042219A (en) * | 2017-12-21 | 2018-05-18 | 四川大学华西医院 | The vertebral plate measuring instrument of slotting position is determined in performing the operation for single open-door |
-
2015
- 2015-08-25 CN CN201520648622.5U patent/CN204863377U/en not_active Expired - Fee Related
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN108042219A (en) * | 2017-12-21 | 2018-05-18 | 四川大学华西医院 | The vertebral plate measuring instrument of slotting position is determined in performing the operation for single open-door |
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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 | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20151216 Termination date: 20160825 |