CN201920845U - Rotary cutter bar used for minimally invasive intervertebral disc surgery - Google Patents
Rotary cutter bar used for minimally invasive intervertebral disc surgery Download PDFInfo
- Publication number
- CN201920845U CN201920845U CN2010206530193U CN201020653019U CN201920845U CN 201920845 U CN201920845 U CN 201920845U CN 2010206530193 U CN2010206530193 U CN 2010206530193U CN 201020653019 U CN201020653019 U CN 201020653019U CN 201920845 U CN201920845 U CN 201920845U
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- rotary
- cutter
- cut
- intervertebral disc
- rotary cutter
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Abstract
The utility model relates to a rotary cutter bar for a minimally invasive intervertebral disc surgery, which is composed of a bar body, an end part rotary cutter (4) and a conveying cutter (3), wherein the end part rotary cutter (4) and the bar body are arranged on the same bar body, and the conveying cutter (3) is arranged at the middle part of the bar body. The rotary cutter bar for the minimally invasive intervertebral disc surgery is characterized in that the rotary cutting knife edges of the rotary cutter (4) and the conveying cutter (3) are designed according to the Archimedes spiral. As the rotary cutting knife edges are designed according to the Archimedes spiral, the rotary cutter bar not only has ideal cutting speed but also can fast and stably eliminate the materials which have been cut down.
Description
Technical field
This utility model relates to medical instruments field, especially a kind of rotary-cut knife bar that is used for Wicresoft's intervertebral disc operation.
Background technology
Intervertebral disc is that it is the important composition unit that constitutes human body support frame vertebra, can bear bigger bending and torque load between human spine two vertebral bodys, by the seal that cartilaginous lamina, fibrous ring, vertebral pulp are formed.After people's adolescence, degenerative change appears in the various tissues of human body, and wherein the variation of spinal disc takes place early, mainly is caused by nucleus dehydrates.Dehydration back intervertebral disc loses normal elasticity and tension force, on this basis because heavier wound or repetitious not obvious damage, causes fibrous ring weak or break, and vertebral pulp will form traditional intervertebral disc prolapse by this place is outstanding.Outstanding intervertebral disc pressuring neural root and produce injured nerve root and hinder symptom, thus the generation of the different all kinds of lumbar disc diseases of numerous appearance symptoms caused.
In recent years, adopt the method treatment prolapse of lumbar intervertebral disc that gets involved to obtain very large progress in the world, wherein special instrument is extractd nucleus pulposus has become one of basic skills commonly used.These class methods are by " windowing " in fibrous ring, and the outgrowth nucleus pulposus of extracing the intervertebral disc centre is intrinsic pressure to reduce intervertebral disc, reaches the effect of indirect decompression.The intervertebral disc operation rotary cut device has become a kind of special-purpose operating theater instruments of comparatively generally using in carrying out this type of operation.
This intervertebral disc operation rotary cut device that uses mainly comprises two parts, operating grip and rotary-cut knife bar at present.Because the rotary-cut knife bar is directly to contact diseased region, and the main member that the nucleus pulposus of pathological changes is excised, so the direct overall process of influence operation of the quality of its serviceability, also be one of key factor that determines surgical effect.According to the research of the inventor, find that existing rotary-cut knife bar in use exists chip removal to transmit unsettled phenomenon to existing rotary-cut knife bar behaviour in service.
Summary of the invention
The purpose of the present utility model: be intended to propose the rotary-cut knife bar of a kind of novel Wicresoft intervertebral disc operation, wish that it can not only finish the rotary-cut task apace, also can get rid of the smear metal that produces in the rotary-cut process fast and reposefully simultaneously.
This rotary-cut knife bar that is used for Wicresoft's intervertebral disc operation, the conveying cutter that is arranged on the end rotary-cut cutter on the same body of rod by the body of rod with the body of rod and is arranged on body of rod middle part constitutes, and it is characterized in that: described rotary-cut cutter designs according to spiral of Archimedes with the rotary-cut blade of carrying cutter.
The length of described rotary-cut cutter and conveying cutter cutter hub is at 2.5 ~ 5mm.
The spacing of conveying cutter bottom is arrived at 15 ~ 80mm in described rotary-cut cutter top
This rotary-cut knife bar that is used for Wicresoft's intervertebral disc operation according to above technical scheme proposition, because the rotary-cut blade is designed according to spiral of Archimedes, therefore this rotary-cut knife bar not only has ideal cutting speed, simultaneously also can be fast, reposefully with the material eliminating of cut.
Description of drawings
Fig. 1 is this utility model structural representation;
Fig. 2 is the enlarged diagram of rotary-cut cutter.
Among the figure: 2-body of rod middle part, 1-knife bar upper end 3-carries cutter 4-rotary-cut cutter.
The specific embodiment
This rotary-cut knife bar that is used for Wicresoft's intervertebral disc operation as shown in the figure, it is a kind of improvement to existing cutting knife bar.Rotary-cut knife bar after the improvement, the conveying cutter 3 that is arranged on the end rotary-cut cutter 4 on the same body of rod by the body of rod with the body of rod and is arranged on body of rod middle part constitutes, and it is characterized in that: described rotary-cut cutter 4 designs according to spiral of Archimedes with the rotary-cut blade of carrying cutter 3.
The cutter hub length of described rotary-cut cutter 4 and conveying cutter 3 is at 2.5 ~ 5mm.
Spacing between described rotary-cut cutter 4 and the conveying cutter 3 is at 15 ~ 80mm.
The spacing of the spiral of Archimedes of described rotary-cut cutter 4 cutter hubs is at 0.6 ~ 0.8mm.
This novel rotary-cut knife bar that is used for Wicresoft's intervertebral disc operation, the rotary-cut cutter 4 that not only is installed in the knife bar bottom has good rotary cutting function, and under the cooperation of the conveying cutter 3 that is arranged on body of rod middle part, finishes the chip removal effect again.Not only unobstructed, also very stable.
Claims (4)
1. rotary-cut knife bar that is used for Wicresoft's intervertebral disc operation, the conveying cutter (3) that is arranged on the end rotary-cut cutter (4) on the same body of rod by the body of rod with the body of rod and is arranged on body of rod middle part constitutes, and it is characterized in that: described rotary-cut cutter (4) designs according to spiral of Archimedes with the rotary-cut blade of carrying cutter (3).
2. a kind of rotary-cut knife bar that is used for Wicresoft's intervertebral disc operation as claimed in claim 1 is characterized in that: the cutter hub length of described rotary-cut cutter (4) and conveying cutter (3) is at 2.5 ~ 5mm.
3. a kind of rotary-cut knife bar that is used for Wicresoft's intervertebral disc operation as claimed in claim 1 is characterized in that: the spacing of conveying cutter (3) bottom is arrived at 15 ~ 80mm in described rotary-cut cutter (4) top.
4. a kind of rotary-cut knife bar that is used for Wicresoft's intervertebral disc operation as claimed in claim 1 is characterized in that: the spacing of the spiral of Archimedes of described rotary-cut cutter (4) cutter hub is at 0.6 ~ 0.8mm.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2010206530193U CN201920845U (en) | 2010-12-10 | 2010-12-10 | Rotary cutter bar used for minimally invasive intervertebral disc surgery |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2010206530193U CN201920845U (en) | 2010-12-10 | 2010-12-10 | Rotary cutter bar used for minimally invasive intervertebral disc surgery |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN201920845U true CN201920845U (en) | 2011-08-10 |
Family
ID=44424721
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN2010206530193U Expired - Fee Related CN201920845U (en) | 2010-12-10 | 2010-12-10 | Rotary cutter bar used for minimally invasive intervertebral disc surgery |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN201920845U (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106333746A (en) * | 2016-10-31 | 2017-01-18 | 上海瑞柯恩激光技术有限公司 | Tissue crusher tool bit and laser treatment device |
| CN107212911A (en) * | 2017-06-30 | 2017-09-29 | 李恰 | A kind of intervertebral disc operation peeling knife |
-
2010
- 2010-12-10 CN CN2010206530193U patent/CN201920845U/en not_active Expired - Fee Related
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106333746A (en) * | 2016-10-31 | 2017-01-18 | 上海瑞柯恩激光技术有限公司 | Tissue crusher tool bit and laser treatment device |
| CN107212911A (en) * | 2017-06-30 | 2017-09-29 | 李恰 | A kind of intervertebral disc operation peeling knife |
| CN107212911B (en) * | 2017-06-30 | 2023-12-15 | 李恰 | Rotary cutter for intervertebral disc operation |
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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: 20110810 Termination date: 20171210 |