CN2607961Y - Self-limiting safety knife for laminectomy - Google Patents
Self-limiting safety knife for laminectomy Download PDFInfo
- Publication number
- CN2607961Y CN2607961Y CN 03202474 CN03202474U CN2607961Y CN 2607961 Y CN2607961 Y CN 2607961Y CN 03202474 CN03202474 CN 03202474 CN 03202474 U CN03202474 U CN 03202474U CN 2607961 Y CN2607961 Y CN 2607961Y
- Authority
- CN
- China
- Prior art keywords
- knife
- laminectomy
- utility
- cutter hub
- model
- 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
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Abstract
The utility model relates to a medical appliance, in particular to a laminectomy knife for a laminectomy operation. The laminectomy knife consists of a knife body [1] and a handle [2]. The knife body [1] is arranged on the handle [2], The top side of the knife body [1] has an edge [3]. The utility model is characterized in that a shoulder bulge [4] is arranged on the near top end of the knife body [1]. The utility model overcomes the defects of the existing bone knife that bone cutting depth can not be controlled which hurts the nerves or spinal cord, the utility model has the advantages of simple operation, safety, high efficiency and easy promotion.
Description
Technical field
This utility model relates to a kind of medical instruments, especially the required knife for laminectomy of vertebral plate decompression.
Technical background
Traditional vertebral plate decompression instrument often adopts laminectomy rongeur, but wastes time and energy, inefficiency, and the used time of performing the operation is longer, and amount of bleeding is bigger.For this reason, there are many scholars once to appeal to use osteotome and carry out the vertebral plate decompression, but used osteotome all is that the steel cutter hub that its top Tapes has the sword face is installed on the osteotome handle at present, this osteotome does not have positioner because of it, make in concrete use, usually increase the injured nerve root because exert oneself excessive, in addition because perform the operation deeply Spinal Cord, risk is bigger, and it is wide to be difficult to vertebra.
Technical conceive
This utility model is at the deficiencies in the prior art part, the self-limiting safety knife for laminectomy of a kind of handling safety, convenience and high-effective and labour-saving is provided, formed by handle of a knife and cutter hub, described cutter hub is installed on the handle of a knife, the top Tapes of cutter hub has the sword face, and it is protruding to it is characterized in that proximal portion at cutter hub is provided with shoulder.
This utility model is owing to be provided with the sword face at the top of cutter hub, and it is protruding to be provided with shoulder at the cutter hub proximal portion, in operation process, as long as impact handle of a knife can be easily top sword face by cutter hub make cutter hub thrust diaphysis, and under the protruding effect of shoulder, it is dark cutter hub to be thrust again, have easy and simple to handle, safe, efficient, be convenient to advantages such as vertebra is wide.
Description of drawings
Figure one is a structural representation of the present utility model
Specific embodiment
Shown in figure one, cutter hub 1 is fixed on the handle of a knife 2, and is provided with sword face 3 at the top of cutter hub 1, and is provided with shoulder protruding 4 at the proximal portion of cutter hub 1.
Claims (1)
1. a self-limiting safety knife for laminectomy is made up of cutter hub [1] and handle of a knife [2], and described cutter hub [1] is installed on the handle of a knife [2], is provided with sword face [3] at the top of cutter hub [1], it is characterized in that the proximal portion of described cutter hub [1] is provided with shoulder protruding [4].
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 03202474 CN2607961Y (en) | 2003-01-24 | 2003-01-24 | Self-limiting safety knife for laminectomy |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 03202474 CN2607961Y (en) | 2003-01-24 | 2003-01-24 | Self-limiting safety knife for laminectomy |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN2607961Y true CN2607961Y (en) | 2004-03-31 |
Family
ID=34157838
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN 03202474 Expired - Fee Related CN2607961Y (en) | 2003-01-24 | 2003-01-24 | Self-limiting safety knife for laminectomy |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN2607961Y (en) |
-
2003
- 2003-01-24 CN CN 03202474 patent/CN2607961Y/en not_active Expired - Fee Related
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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: 20040331 Termination date: 20120124 |