CN202761386U - Skull milling cutter - Google Patents
Skull milling cutter Download PDFInfo
- Publication number
- CN202761386U CN202761386U CN 201220510009 CN201220510009U CN202761386U CN 202761386 U CN202761386 U CN 202761386U CN 201220510009 CN201220510009 CN 201220510009 CN 201220510009 U CN201220510009 U CN 201220510009U CN 202761386 U CN202761386 U CN 202761386U
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- CN
- China
- Prior art keywords
- cutter
- skull
- tooth
- cutter head
- milling cutter
- 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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- Dental Tools And Instruments Or Auxiliary Dental Instruments (AREA)
Abstract
The utility model relates to the technical field of medical apparatus and provides a skull milling cutter. The skull milling cutter comprises a cutter head and a shank. The cutter head is provided with a plurality of cutter teeth evenly distributed on the peripheral wall of the cutter head, the cutter teeth are provided with blades, cross section of each cutter tooth is in an arced structure, and a surface, contacting with skull, of each cutter tooth is in a recessed arced structure when the cutter tooth is are rotated. The skull milling cutter is more laborsaving to use, and a gap of cut skull crack is narrow so that cutting force experienced by a patient under craniotomy is relieved.
Description
Technical field
This utility model relates to technical field of medical instruments, is specially a kind of skull milling cutter.
Background technology
Operation of opening cranium also claims out the cranium art, is that skull is operating a kind of, refers to open patient's skull by plant equipment, thereby carries out some nonroutine treatments.Operation of opening cranium generally be first with drill for craniotomy after skull gets out the hole, cut open with saw blade or miller for craniotomy again.
Existing skull milling cutter construction as shown in Figure 1, comprise cutter head 11 and handle of a knife 12, one end of cutter head 11 links to each other with handle of a knife 12, handle of a knife 12 is used for cutter head 11 is fixed on miller for craniotomy, cutter head 11 has a plurality of cutters tooth 13 that are centered around on cutter head 11 perisporiums, cutter head 11 is structure as a whole with cutter tooth 13, and cutter tooth 13 is straight triangular prism shape and vertical cutter hub setting.Adopt miller for craniotomy cutting skull faster, more laborsaving than saw blade, but the skull slit of cutting open is wider, the cutting force that patient's skull is born is larger, this mainly is because this straight triangular prism structure of cutter tooth 13 so that 14 pairs of skulls of blade part carry out during cutting is the plane scraped finish, has therefore produced larger frictional force.
The utility model content
Technical problem to be solved in the utility model is: provide a kind of skull milling cutter, the problem that exists to solve prior art.
For solving the problems of the technologies described above, this utility model provides following technical scheme:
The skull milling cutter, comprise cutter head and handle of a knife, described cutter head has a plurality of cutters tooth that are evenly distributed on the described cutter head perisporium, described a plurality of cutter tooth all has blade part, it is characterized in that: the cross section of described cutter tooth is arcuate structure, and the one side that contacts with described skull when rotating is the arcuate structure of indent.
Preferably, the blade part of described cutter tooth is zigzag.
Preferably, described cutter tooth has four.
Preferably, described cutter head and described cutter tooth are structure as a whole.
After having adopted technique scheme, the beneficial effects of the utility model are: because the cross section of described cutter tooth is arcuate structure, and the one side that contacts with described skull when rotating is the arcuate structure of indent, cutting angle when having changed described blade cutting skull, thereby changed the direction of power, not only produce certain cutting force, but also alleviated the plane scraped finish of blade surface and facet, improve cutting efficiency, greatly alleviated the cutting force that the patient bears.
Description of drawings
Fig. 1 is prior art skull milling cutter perspective view;
Fig. 2 is the perspective view of this utility model specific embodiment;
Fig. 3 is this utility model cutter head cross-sectional structure schematic diagram;
Wherein, 11,21: cutter head; 12,22: handle of a knife; 13,23: cutter tooth; 14,24: blade part.
The specific embodiment
Below in conjunction with accompanying drawing the specific embodiment of the present utility model is elaborated.
A kind of skull milling cutter as shown in Figures 2 and 3, comprise cutter head 21 and handle of a knife 22, one end of cutter head 21 links to each other with handle of a knife 22, cutter head 21 has a plurality of cutters tooth 23 that are centered around on cutter head 21 perisporiums, and cutter tooth 23 has blade part 24, and the cross section of cutter tooth 23 is arcuate structure, and the one side that contacts with skull when rotating is the arcuate structure of indent, blade part 24 is zigzag, and cutter tooth 23 has four, and cutter head 21 is structure as a whole with cutter tooth 23.
This utility model not only uses more laborsaving, and the skull slit of cutting open is narrower, has alleviated the cutting force that skull bore when the patient opened cranium.
This utility model is not limited to above-mentioned concrete embodiment, and those of ordinary skill in the art is from above-mentioned design, and without performing creative labour, all conversion of having done all drop within the protection domain of the present utility model.
Claims (4)
1. skull milling cutter, comprise cutter head and handle of a knife, described cutter head has a plurality of cutters tooth that are evenly distributed on the described cutter head perisporium, described a plurality of cutter tooth all has blade part, it is characterized in that: the cross section of described cutter tooth is arcuate structure, and the one side that contacts with described skull when rotating is the arcuate structure of indent.
2. skull milling cutter as claimed in claim 1, it is characterized in that: the blade part of described cutter tooth is zigzag.
3. skull milling cutter as claimed in claim 1 or 2, it is characterized in that: described cutter tooth has four.
4. skull milling cutter as claimed in claim 1, it is characterized in that: described cutter head and described cutter tooth are structure as a whole.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 201220510009 CN202761386U (en) | 2012-09-29 | 2012-09-29 | Skull milling cutter |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 201220510009 CN202761386U (en) | 2012-09-29 | 2012-09-29 | Skull milling cutter |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN202761386U true CN202761386U (en) | 2013-03-06 |
Family
ID=47768000
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN 201220510009 Expired - Fee Related CN202761386U (en) | 2012-09-29 | 2012-09-29 | Skull milling cutter |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN202761386U (en) |
-
2012
- 2012-09-29 CN CN 201220510009 patent/CN202761386U/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: 20130306 Termination date: 20130929 |