CN2522039Y - Pedicle screw drilling guide device - Google Patents
Pedicle screw drilling guide device Download PDFInfo
- Publication number
- CN2522039Y CN2522039Y CN 01259813 CN01259813U CN2522039Y CN 2522039 Y CN2522039 Y CN 2522039Y CN 01259813 CN01259813 CN 01259813 CN 01259813 U CN01259813 U CN 01259813U CN 2522039 Y CN2522039 Y CN 2522039Y
- Authority
- CN
- China
- Prior art keywords
- guider
- connecting rod
- guide device
- pedicle screw
- support
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Expired - Fee Related
Links
- 238000005553 drilling Methods 0.000 title claims abstract description 10
- 238000000034 method Methods 0.000 claims abstract description 20
- 238000013461 design Methods 0.000 description 3
- 238000013459 approach Methods 0.000 description 2
- 238000009434 installation Methods 0.000 description 2
- 239000000523 sample Substances 0.000 description 2
- 238000001356 surgical procedure Methods 0.000 description 2
- 238000012790 confirmation Methods 0.000 description 1
- 238000011161 development Methods 0.000 description 1
- 238000005516 engineering process Methods 0.000 description 1
- 238000010079 rubber tapping Methods 0.000 description 1
- 210000000115 thoracic cavity Anatomy 0.000 description 1
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- Surgical Instruments (AREA)
Abstract
The drilling guide device for pedicle screw is used for accurately controlling the drilling in pedicle screw and consists of two parts, namely a spherical guide device and a support, wherein the two parts are used for adjusting angles in two vertical directions simultaneously, and the support is fixed on spinous process. The brackets are connected with each other through bracket connecting rods. The spherical guider is connected with the support connecting rod through the guider connecting rod, and the spherical guider can move along a Cartesian coordinate system and a polar coordinate system along the support connecting rod. The hole can be drilled in the vertebral pedicle along the direction of the vertebral pedicle precisely only by adjusting the position and the direction and fixing.
Description
This utility model belongs to the medical surgical instrument of spinal surgery (orthopaedics) usefulness.
In recent years, along with the development of spinal surgery, multiple internal fixation of spine apparatus occurred, especially most widely used with the pedicle screw fixation technology, effect is best, as: apparatuses such as Steffee and Dick.It is the most important with the installation of pedicle screw that such apparatus is installed.Because screw is to reach vertebral body from pedicle of vertebral arch, operation has great risk, even when veteran doctor also makes mistakes unavoidably, especially to the installation of the pedicle screw of last thoracic vertebra and cervical vertebra, in case direction is held inaccurate, will cause the failure of severe complications and operation.
The purpose of this utility model provides a kind of approach direction of accurate guiding pedicle screw, the deviation of direction when avoiding screw to be screwed into and the severe complication that occurs and the failure of operation.
Basic design of the present utility model is, the pedicle screw drilling guide device is made up of two parts, and a part is for being fixed in the support of spinous process, and another part be the spherical guider of adjustment angle on two vertical direction simultaneously.
By the above-mentioned pedicle screw guider that designs, in use, the doctor is measuring earlier support and is wanting angle between the pedicle of vertebral arch of fixed two spinous process lines and the stubborn screw of desire on the X-ray film of side position before operation, measure pedicle of vertebral arch admedian angle of inclination on cross section again on the CT sheet.During operation, expose support and want articular process on fixed spinous process and the fixed pedicle of vertebral arch of screw desire, mix up the incline direction of spherical guider by top two angles having measured, the pedicle screw guider is installed on spinous process, choose into point, elder generation to piercing pedicle of vertebral arch, takes the photograph the direction boring that sheet confirms that back reuse bradawl is controlled along spherical guider with the suitable guider institute of pedicle probe prosecutor, can arrive vertebral body along pedicle of vertebral arch and get out the approach duct.Be screwed into pedicle screw along the duct.
Below in conjunction with drawings and Examples this utility model is described further:
Accompanying drawing 1, front view of the present utility model
Accompanying drawing 2, vertical view of the present utility model
Accompanying drawing 3, left view of the present utility model
The A-A cutaway view of accompanying drawing 4, spherical guider of the present utility model
The B-B cutaway view of accompanying drawing 5, guider connecting rod and support connecting rod junction
Among the figure: the spherical guider of 1-
2-spinous process fixed support
3-guider connecting rod
4-support connecting rod
5-" ten " word fixed mount (indicating angle index)
6-spinous process fixed support is tightened screw
7-connecting rod hold-down nut
Two parts of the present utility model are formed: be fixed on the supraspinous spinous process fixed support 2 of vertebrae, regulate the spherical guider 1 of direction.They are connected with guider connecting rod 3 by support connecting rod 4, and spherical guider 1 can be moved along Di Kaer coordinate system and polar coordinate system.
The spinous process fixed support is tightened by screw 6 and is clamped and fastened on the spinous process.Design grooving shape slotted hole can be tightened with fixed by hold-down nut 7 in the middle of support connecting rod and the guider connecting rod, and guider connecting rod and spherical guider are an overall structure.The core of spherical guider is a spheroid, and as Fig. 4, spheroid top is connecting one and is being with externally threaded bolt, and bolt and spheroid are an integral body, and bolt and ball centre have the duct of a perforation, are guide hole.The spheroid periphery hold a upper and lower side respectively clip 1/6 partly hold ball, spheroid can be done all directions rotation partly holding in the ball.Spherical guider upper end is " ten " word fixed mount 5 that has angle index, fixes the ball-type guider by the nut on tighting a bolt, and prevents rotation, and reads two angular readings on the vertical direction.
Embodiment of the present utility model is described as follows:
1. after the spinous process of spinal column and articular process expose, select two spinous process, fixedly the upper aristate process fixed support 2.
2. the mounting bracket connecting rod 4.
3. guider connecting rod 3 is installed on the support connecting rod 4, thereby also installs spherical guider 1.
4. respectively spherical guider is being mixed up angle (angle is in measuring on the X sheet of spinal column side position He on the CT sheet) on sagittal plane and the coronalplane.
5. spherical guider 1 do up and down and about be adjusted to correct position.
6. pedicle probe (overcoat diameter 4mm sleeve) pierces pedicle of vertebral arch along guide hole, and takes the photograph the sheet confirmation.
7. pierce pedicle of vertebral arch to vertebral body with bradawl along guide hole.
8. extract tapping behind the bradawl, be screwed into pedicle screw.
Claims (5)
1, a kind of pedicle screw drilling guide device, it mainly contains the spinous process fixed support and spherical guider is formed, and connects by the support connecting rod between the spinous process fixed support, and spherical guider is connected with the support connecting rod by the guider connecting rod.
2, pedicle screw drilling guide device according to claim 1 is characterized in that the spinous process fixed support is clamped and fastened on the spinous process by tightening screw.
3, pedicle screw drilling guide device according to claim 1 is characterized in that in the middle of the support connecting rod be groove shape slotted hole, is fixed on the spinous process fixed support with nut screwing clamping.
4, pedicle screw drilling guide device according to claim 1, it is characterized in that guider connects and spherical guider is an overall structure, slotted hole in the form of slot in the middle of the guider connecting rod, be fixed on the support connecting rod by fastening nut, spherical guider upper end is " ten " word fixed mount that has angle index, fixes by nut screwing clamping after adjusting angle.
5, pedicle screw drilling guide device according to claim 1 is characterized in that spherical guider, and its core is a spheroid, the periphery hold a upper and lower side respectively clip 1/6 partly hold ball, spheroid is partly holding in the ball and can rotate to all directions.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 01259813 CN2522039Y (en) | 2001-08-21 | 2001-08-21 | Pedicle screw drilling guide device |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 01259813 CN2522039Y (en) | 2001-08-21 | 2001-08-21 | Pedicle screw drilling guide device |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN2522039Y true CN2522039Y (en) | 2002-11-27 |
Family
ID=33668112
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN 01259813 Expired - Fee Related CN2522039Y (en) | 2001-08-21 | 2001-08-21 | Pedicle screw drilling guide device |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN2522039Y (en) |
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101601600B (en) * | 2009-07-14 | 2011-04-06 | 常州市康辉医疗器械有限公司 | Spinous internal-fixation device |
| CN107411811A (en) * | 2017-07-12 | 2017-12-01 | 中南大学湘雅医院 | Multifunctional guide device for sacral nail placement |
| CN110478020A (en) * | 2019-09-09 | 2019-11-22 | 南京医科大学第二附属医院 | A kind of Via Posterior Spinal Approach sets spike devices and method |
| CN114376695A (en) * | 2022-01-17 | 2022-04-22 | 于小钧 | Centrum positioner that punches |
-
2001
- 2001-08-21 CN CN 01259813 patent/CN2522039Y/en not_active Expired - Fee Related
Cited By (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101601600B (en) * | 2009-07-14 | 2011-04-06 | 常州市康辉医疗器械有限公司 | Spinous internal-fixation device |
| CN107411811A (en) * | 2017-07-12 | 2017-12-01 | 中南大学湘雅医院 | Multifunctional guide device for sacral nail placement |
| CN110478020A (en) * | 2019-09-09 | 2019-11-22 | 南京医科大学第二附属医院 | A kind of Via Posterior Spinal Approach sets spike devices and method |
| CN114376695A (en) * | 2022-01-17 | 2022-04-22 | 于小钧 | Centrum positioner that punches |
| CN114376695B (en) * | 2022-01-17 | 2024-01-12 | 西安市红会医院 | Centrum positioner that punches |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| C19 | Lapse of patent right due to non-payment of the annual fee | ||
| CF01 | Termination of patent right due to non-payment of annual fee |