CN2787161Y - Nail track positioning probe for pedicle of vertebral arch - Google Patents
Nail track positioning probe for pedicle of vertebral arch Download PDFInfo
- Publication number
- CN2787161Y CN2787161Y CNU2005200711086U CN200520071108U CN2787161Y CN 2787161 Y CN2787161 Y CN 2787161Y CN U2005200711086 U CNU2005200711086 U CN U2005200711086U CN 200520071108 U CN200520071108 U CN 200520071108U CN 2787161 Y CN2787161 Y CN 2787161Y
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- pedicle
- measuring junction
- vertebral arch
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- slubbing
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Abstract
The utility model discloses a nail track positioning depth measurer for a vertebral arch pedicle, which comprises a body, wherein the body is composed of a holding end and a measuring end. The utility model is characterized in that the measuring end is composed of a plurality of thick section segments and thin section segments which are integrally formed, and heads and tails of the thick section segments and the thin section segments are orderly connected and are distributed at intervals. By using the cooperation of the thick and thin section segments, the utility model can clearly and accurately judge the direction and the depth of a nail track under a C arm machine during the operation, and the wrong embedding of the vertebral arch pedicle nail is reduced to effectively enhance the successful rate of an embedding operation.
Description
Technical field
This utility model relates to a kind of surgical instruments, is specifically related to a kind ofly in pedicle screw implant surgery process, and the nail road is used to the location depth finder judging nail road direction and measure the nail road degree of depth when preparing.
Background technology
In spinal surgery, use the existing history that surpasses 50 years of internal fixation technology of pedicle screw, the main effect of internal fixation of spine is that the power sections of stabilizing spine is to promote its fusion.Three posts before, during and after can being divided into according to " three post theories " spinal column, and pedicle of vertebral arch is the unique passage that connects and connect three posts, and the pedicle internal fixation has best mechanical stability, therefore, this technology is widely used, especially in the fixing operation of breast waist section.
But because the anatomical features of pedicle of vertebral arch, determined the screw of implanting to be arranged on the unique correct passage of three dimensions, that is: according to correct sagittal plane angle and horizontal plane angle, major axis along pedicle of vertebral arch passes this narrow and small bone pipeline of pedicle of vertebral arch, especially the pedicle of vertebral arch on the neck thoracic vertebra is more narrow and small, the direction of bone pipeline and the degree of depth are difficult to correct judgement, easily cause the mistake of screw to plant, will cause internal fixation system intensity decreases or inefficacy and plant by mistake, and the damage of tissue, organ, cause operative failure.
Before pedicle screw is implanted, at first need to be ready to follow closely, then screw is screwed in the nail road, and the accuracy of nail road on its three dimensions is the key of decision operation success or not.Get out the nail road with drill bit after, need to use certain device that its direction and angle are judged.In the prior art, usually adopt Kirschner wire or the identical shaft-like equipment of other thickness, under C-arm machine perspective, concern with position between the pedicle of vertebral arch projection and judge implantation direction and angle by observing positioning equipment, but C-arm machine can only provide two dimensional image, three-dimensional space position to the nail road can not be judged exactly, especially judging on nail road and the sagittal plane angle, location Kirschner wire or other similar equipment generally all become straight tube elongated shape, the projection of being presented in positive bit slice is also tiny relatively, and diameter projected's unanimity is difficult to judge that its direction of travel and angle easily produce erroneous judgement, thereby causes mistake to implant.Therefore need a kind of location sounding device that can judge the pedicle nail road direction and the degree of depth more accurately,, promote further developing of pedicle internal fixation technology to improve the accuracy of implanting.
Summary of the invention
This utility model purpose provides a kind of location depth finder that is easy to judge the pedicle nail road direction and the degree of depth under C arm machine.
For achieving the above object, the technical solution adopted in the utility model is: location, a kind of pedicle nail road depth finder, it comprises a body, described body is made up of holding end and measuring junction, described measuring junction is made up of integrated a plurality of slubbing sections and details section, described slubbing section and details section join end to end successively, and be spaced apart.
In the technique scheme, because measuring junction has the branch of thickness sections, under C arm machine, only need to observe the rectilinear direction that the slubbing section partly constitutes, the pedicle of vertebral arch axis that shows on axis by its projection and the C arm machine compares and gets final product, and the thin bamboo joint type structure of the thick joint of a joint is observed under C arm machine, the interval of details section is arranged between the adjacent slubbing section, be easy to judge collinear direction.
In the technique scheme, described measuring junction is provided with scale, is convenient to directly read the nail road degree of depth.
Further technical scheme is, scale extension on the described measuring junction is arranged to holding end, also include a cursor type sleeve that is sheathed on the body, when fathoming, on the cortical layer of sleeve landing to pedicle of vertebral arch, read the reading of sleeve position, be the nail road degree of depth, make read more convenient with accurately.
In the technique scheme, that slubbing section shape in the described measuring junction is selected from is cylindrical, sphere or rectangle, because boring good nail road is distributed in the pedicle of vertebral arch of both sides, difform depth finder, under X-ray, be convenient to distinguish the and arranged on left and right sides pedicle nail road direction and the degree of depth separately, help correct adjustment.
Because the technique scheme utilization, this utility model compared with prior art has following advantage:
1. because measuring junction of the present utility model adopts the alternate integrated structure of thickness, be easy to judge the identical situation of depth finder axis, location and pedicle of vertebral arch axis in the art under the C arm machine, reduce the erroneous judgement that causes because of visual error, improve the accuracy that pedicle screw is implanted.
2. utilize the tube-in-tube structure of cursor type to read scale, make the numerical value that reads more accurate, also be convenient to read.
3. two kinds of difform location depth finders are adopted in the judgement in and arranged on left and right sides pedicle nail road, under X-ray, be easy to distinguish left and right sides pedicle of vertebral arch, be convenient to adjust more accurately.
Description of drawings
Accompanying drawing 1 is the structural representation of this utility model embodiment one;
Accompanying drawing 2 is the structural representation of opposite side depth finder among this utility model embodiment one;
Accompanying drawing 3 is the structural representation of this utility model embodiment two;
Accompanying drawing 4 is the A-A cut-away view of Fig. 3;
Accompanying drawing 5 is the structural representation of this utility model embodiment three.
Wherein: [1], holding end; [2], measuring junction; [3], slubbing section; [4], details section; [5], sleeve; [6], scale.
The specific embodiment
Below in conjunction with drawings and Examples this utility model is further described:
Embodiment one: shown in accompanying drawing 1,2, location, a kind of pedicle nail road depth finder, it comprises the body that a 20cm is long, body is made up of holding end 1 and measuring junction 2, described measuring junction 2 is 15cm, form with details section 4 by integrated a plurality of slubbing sections 3, described slubbing section 3 joins end to end successively with details section 4, spaced apart, described measuring junction 2 is provided with scale 6, and for the ease of identification and arranged on left and right sides pedicle nail road under X-ray, the slubbing section 3 of one of them depth finder is spherical, and another is a rectangle.
Embodiment two: referring to accompanying drawing 3, shown in 4, location, a kind of pedicle nail road depth finder, it comprises the body that a 10cm is long, body is made up of holding end 1 and measuring junction 2, and comprise that also one is sheathed on the cursor type sleeve 5 on the body, described measuring junction 2 is 6cm, form with details section 4 by integrated a plurality of slubbing sections 3, described slubbing section 3 joins end to end successively with details section 4, and spaced apart, described measuring junction 2 is provided with scale 6, and extension is arranged to holding end 1, for the ease of an identification left side under X-ray, the position of depth finder in the pedicle nail road, right both sides, the slubbing section 3 of one of them depth finder is cylindrical, and another is spherical.
Embodiment three: shown in accompanying drawing 5, location, a kind of pedicle nail road depth finder, it comprises the body that a 25cm is long, body is made up of holding end 1 and measuring junction 2, described measuring junction 2 is 20cm, form with details section 4 by integrated a plurality of slubbing sections 3, described slubbing section 3 joins end to end successively with details section 4, spaced apart, described measuring junction 2 is provided with scale 6, and extends and to be arranged to holding end 1, for the ease of an identification left side under X-ray, the position of depth finder in the pedicle nail road, right both sides, the slubbing section 3 of one of them depth finder is a rectangle, and another is spherical.
Claims (4)
1. depth finder is located in a pedicle nail road, it comprises a body, described body is made up of holding end [1] and measuring junction [2], it is characterized in that: described measuring junction [2] is made up of integrated a plurality of slubbing sections [3] and details section [4], described slubbing section [3] joins end to end successively with details section [4], and is spaced apart.
2. location, pedicle nail according to claim 1 road depth finder, it is characterized in that: described measuring junction [2] is provided with scale [6].
3. location, pedicle nail according to claim 2 road depth finder is characterized in that: scale [6] extension on the described measuring junction [2] is arranged to holding end [1], also includes a cursor type sleeve [5] that is sheathed on the body.
4. pedicle nail according to claim 1 road location depth finder is characterized in that: slubbing section [3] shape in the described measuring junction [2] is selected from cylindrical, sphere or rectangle.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CNU2005200711086U CN2787161Y (en) | 2005-04-22 | 2005-04-22 | Nail track positioning probe for pedicle of vertebral arch |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CNU2005200711086U CN2787161Y (en) | 2005-04-22 | 2005-04-22 | Nail track positioning probe for pedicle of vertebral arch |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN2787161Y true CN2787161Y (en) | 2006-06-14 |
Family
ID=36785457
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CNU2005200711086U Expired - Fee Related CN2787161Y (en) | 2005-04-22 | 2005-04-22 | Nail track positioning probe for pedicle of vertebral arch |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN2787161Y (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN107496021A (en) * | 2017-08-03 | 2017-12-22 | 中国人民解放军第二军医大学第二附属医院 | Pedicle screw inserts dynamic monitoring system and method |
| CN109009482A (en) * | 2018-10-10 | 2018-12-18 | 创生医疗器械（中国）有限公司 | Synthetism plate bolt dipstick |
-
2005
- 2005-04-22 CN CNU2005200711086U patent/CN2787161Y/en not_active Expired - Fee Related
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN107496021A (en) * | 2017-08-03 | 2017-12-22 | 中国人民解放军第二军医大学第二附属医院 | Pedicle screw inserts dynamic monitoring system and method |
| CN107496021B (en) * | 2017-08-03 | 2019-09-10 | 中国人民解放军第二军医大学第二附属医院 | Pedicle screw is placed in dynamic monitoring system and method |
| CN109009482A (en) * | 2018-10-10 | 2018-12-18 | 创生医疗器械（中国）有限公司 | Synthetism plate bolt dipstick |
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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: 20060614 |