CN103706856A - T-shaped knife of interbody fusion cage - Google Patents
T-shaped knife of interbody fusion cage Download PDFInfo
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- CN103706856A CN103706856A CN201310684133.0A CN201310684133A CN103706856A CN 103706856 A CN103706856 A CN 103706856A CN 201310684133 A CN201310684133 A CN 201310684133A CN 103706856 A CN103706856 A CN 103706856A
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- knife
- blade surface
- handle
- fusion device
- lumbar fusion
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Abstract
The invention relates to the field of medical apparatus and instruments and particularly relates to a T-shaped knife of an interbody fusion cage. The T-shaped knife of the interbody fusion cage provided by the invention is mainly used for processing interbody fusion cages and comprises a cutting edge with a cone structure and a hilt with a cylindrical structure, wherein the cutting edge and the hilt are integrally formed, the cutting edge comprises a front blade surface arranged on the front end face, an upper blade surface, a lower blade surface and a rear blade surface connected with the hilt, the rear blade surface is arranged to form an included angle of 82.5 degrees with the side face of the hilt, the upper blade surface is arranged to form an included angle of 29 degrees with the side face of the hilt, and the lower blade surface is arranged to form an included angle of 29 degrees with the side face of the hilt. The T-shaped knife of the interbody fusion cage provided by the invention has a reasonable structure, recesses with negative angles can be processed in a machining process of complicated pore cavities by means of the actuate angles arranged between the cutting edges and the hilt, and the recesses are formed for one time, so that the processing efficiency and uniformity are greatly improved, and a large-space straight groove is arranged to ensure easy discharge of cutting chips so as to prolong the service life of the cutter.
Description
Technical field
The present invention relates to medical instruments field, particularly the T-shaped cutter of a kind of Invasive lumbar fusion device.
Background technology
T-shaped cutter is the cutter being assemblied on milling machine for the T-shaped groove of milling workpiece, lateral grooves.T-shaped cutter is again T-shaped milling cutter, semicircle milling cutter, cotter mill cutter, perfectly processing T type groove, lateral grooves processing.At high temperature can maintain normal cutting ability.
Common T-shaped cutter is the T-shaped cutter of circular arc at present, and its blade is circular arc, can only machining angle be generally the T-shaped groove at 90 ° of angles, the structure processing is single, and often knife bar takies more processing space, causes the minimizing in chip removal space, easily cause tool wear and crumble.And chip removal freely can not produce burr and cut at the endoporus processing and port, need tool changing deburring chamfering again, reduced production efficiency.
Summary of the invention
The object of the invention is to defect and deficiency for prior art, a kind of rational in infrastructure, T-shaped cutter of Invasive lumbar fusion device that can process negative angle groove is provided.
For achieving the above object, the present invention is by the following technical solutions:
The T-shaped cutter of a kind of Invasive lumbar fusion device of the present invention, be mainly used in processing Invasive lumbar fusion device, comprise the blade of integrated frustum structure and the handle of a knife of cylindrical-shaped structure, described blade comprises the lip surface that is arranged at front end face, sword face on one, one lower blade surface and the rear edge face being connected with described handle of a knife, the cross-sectional diameter of described blade increases to rear edge face gradually from described lip surface, and the diameter of described rear edge face is greater than the cross-sectional diameter of described handle of a knife, described lower blade surface is provided with two straight troughs, the side of described rear edge face and described handle of a knife is 82.5 ° of angle settings, the side of described upper sword face and described handle of a knife is 29 ° of angle settings, the side of described lower blade surface and described handle of a knife is 29 ° of angle settings.
Further, described rear edge face is the setting of circular arc interface with the junction of described upper sword face and lower blade surface respectively.
Further, the radius of corner of described circular arc interface is 0.3 millimeter.
Further, described blade and handle of a knife are concentric setting.
Further, described straight trough extends to described handle of a knife from described lower blade surface.
Further, described straight trough faces toward along the axle center of described blade.
Further, described handle of a knife end is provided with a location division.
Further, described location division and the transition of described handle of a knife chamfering.
Beneficial effect of the present invention is: the present invention is rational in infrastructure, by the acute angle between blade and handle of a knife, arrange, make in complexity vestibule process, can process the groove of negative angle, one-shot forming, greatly improved working (machining) efficiency and uniformity, and the smear metal that is arranged so that of large space straight trough can more easily discharge, increase the service life of cutter.
Accompanying drawing explanation
Fig. 1 is overall structure schematic diagram of the present invention;
Fig. 2 is the local structure for amplifying schematic diagram of blade of the present invention.
In figure: 1-blade, 2-handle of a knife, 3-straight trough, 11-lip surface, the upper sword face of 12-, 13-lower blade surface, 14-rear edge face, 21-location division.
The specific embodiment
Below in conjunction with accompanying drawing, the present invention is further illustrated.
As Fig. 1, shown in Fig. 2, the T-shaped cutter of a kind of Invasive lumbar fusion device of the present invention, be mainly used in processing Invasive lumbar fusion device, comprise the blade 1 of integrated frustum structure and the handle of a knife 2 of cylindrical-shaped structure, blade 1 and handle of a knife 2 are concentric setting, blade 1 comprises the lip surface 11 that is arranged at front end face, sword face 12 on one, one lower blade surface 13 and the rear edge face 14 being connected with handle of a knife 2, the cross-sectional diameter of blade 1 increases to rear edge face 14 gradually from lip surface 11, and the diameter of rear edge face 14 is greater than the cross-sectional diameter of handle of a knife 2, lower blade surface 13 is provided with two straight troughs 3, rear edge face 14 is 82.5 ° of settings with the side angle b of handle of a knife 2, upper sword face 12 is 29 ° of angle settings with the side of handle of a knife 2, lower blade surface 13 is 29 ° of settings with the side angle a of handle of a knife 2.Rear edge face 14 is 82.5 ° with the angle of handle of a knife 2 sides, makes to form acute angle between blade 1 rear end face and handle of a knife 2, when processing vestibule, can process the groove of negative angle, and one-shot forming, has greatly improved working (machining) efficiency and uniformity.
It should be noted that, rear edge face 14 is the setting of circular arc interface with the junction of upper sword face 12 and lower blade surface 13 respectively.Preferably, the radius of corner R of circular arc interface is 0.3 millimeter.The intensity of blade 1 has not only been strengthened in circular arc setting, and has avoided user's careless scratch in the process of taking.
Meanwhile, two straight troughs 3 extend to handle of a knife 2 from lower blade surface 13, and this straight trough 3 faces toward along the axle center of blade 1.This straight trough 3 is for holding smear metal scrap fallaway in process, straight trough 3 extends to handle of a knife 2 places, exactly in order to strengthen chip removal space, avoids cutter because chip removal does not freely cause wearing and tearing and crumbles, and has improved the service life of working (machining) efficiency and cutter.
Then, handle of a knife 2 ends are provided with a location division 21, this location division 21 and handle of a knife 2 chamfering transition.
The T-shaped cutter of Invasive lumbar fusion device of the present invention, by the acute angle between blade 1 and handle of a knife 2, arrange, make in complexity vestibule process, can process the groove of negative angle, one-shot forming, greatly improved working (machining) efficiency and uniformity, and the smear metal that is arranged so that of large space straight trough 3 can more easily discharge, increase the service life of cutter.
The above is only better embodiment of the present invention, and the equivalence of doing according to structure, feature and principle described in patent claim of the present invention therefore all changes or modifies, and is included in patent claim of the present invention.
Claims (8)
1. the T-shaped cutter of Invasive lumbar fusion device, be mainly used in processing Invasive lumbar fusion device, it is characterized in that: comprise the blade of integrated frustum structure and the handle of a knife of cylindrical-shaped structure, described blade comprises the lip surface that is arranged at front end face, sword face on one, one lower blade surface and the rear edge face being connected with described handle of a knife, the cross-sectional diameter of described blade increases to rear edge face gradually from described lip surface, and the diameter of described rear edge face is greater than the cross-sectional diameter of described handle of a knife, described lower blade surface is provided with two straight troughs, the side of described rear edge face and described handle of a knife is 82.5 ° of angle settings, the side of described upper sword face and described handle of a knife is 29 ° of angle settings, the side of described lower blade surface and described handle of a knife is 29 ° of angle settings.
2. the T-shaped cutter of Invasive lumbar fusion device according to claim 1, is characterized in that: described rear edge face is the setting of circular arc interface with the junction of described upper sword face and lower blade surface respectively.
3. the T-shaped cutter of Invasive lumbar fusion device according to claim 2, is characterized in that: the radius of corner of described circular arc interface is 0.3 millimeter.
4. the T-shaped cutter of Invasive lumbar fusion device according to claim 1, is characterized in that: described blade and handle of a knife are concentric setting.
5. the T-shaped cutter of Invasive lumbar fusion device according to claim 1, is characterized in that: described straight trough extends to described handle of a knife from described lower blade surface.
6. the T-shaped cutter of Invasive lumbar fusion device according to claim 1, is characterized in that: described straight trough faces toward along the axle center of described blade.
7. the T-shaped cutter of Invasive lumbar fusion device according to claim 1, is characterized in that: described handle of a knife end is provided with a location division.
8. the T-shaped cutter of Invasive lumbar fusion device according to claim 7, is characterized in that: described location division and the transition of described handle of a knife chamfering.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201310684133.0A CN103706856A (en) | 2013-12-12 | 2013-12-12 | T-shaped knife of interbody fusion cage |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201310684133.0A CN103706856A (en) | 2013-12-12 | 2013-12-12 | T-shaped knife of interbody fusion cage |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN103706856A true CN103706856A (en) | 2014-04-09 |
Family
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201310684133.0A Pending CN103706856A (en) | 2013-12-12 | 2013-12-12 | T-shaped knife of interbody fusion cage |
Country Status (1)
| Country | Link |
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| CN (1) | CN103706856A (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN112388039A (en) * | 2019-08-14 | 2021-02-23 | 深圳精匠云创科技有限公司 | Forming tool and inner groove machining method |
Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US5704736A (en) * | 1995-06-08 | 1998-01-06 | Giannetti; Enrico R. | Dove-tail end mill having replaceable cutter inserts |
| CN202804304U (en) * | 2012-08-21 | 2013-03-20 | 常州市精刃工具制造有限公司 | Shell clamping groove T-shaped knife |
| CN202845889U (en) * | 2012-09-27 | 2013-04-03 | 常州市兴强工具有限公司 | T-shaped milling cutter |
| CN203018815U (en) * | 2012-12-31 | 2013-06-26 | 泉州市泉永机械发展有限公司 | Milling cutter for processing trapezoidal groove in supporting shaft of supporting wheel of dozer |
| CN103381499A (en) * | 2012-05-03 | 2013-11-06 | 李仕清 | Composite milling cutter |
-
2013
- 2013-12-12 CN CN201310684133.0A patent/CN103706856A/en active Pending
Patent Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US5704736A (en) * | 1995-06-08 | 1998-01-06 | Giannetti; Enrico R. | Dove-tail end mill having replaceable cutter inserts |
| CN103381499A (en) * | 2012-05-03 | 2013-11-06 | 李仕清 | Composite milling cutter |
| CN202804304U (en) * | 2012-08-21 | 2013-03-20 | 常州市精刃工具制造有限公司 | Shell clamping groove T-shaped knife |
| CN202845889U (en) * | 2012-09-27 | 2013-04-03 | 常州市兴强工具有限公司 | T-shaped milling cutter |
| CN203018815U (en) * | 2012-12-31 | 2013-06-26 | 泉州市泉永机械发展有限公司 | Milling cutter for processing trapezoidal groove in supporting shaft of supporting wheel of dozer |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN112388039A (en) * | 2019-08-14 | 2021-02-23 | 深圳精匠云创科技有限公司 | Forming tool and inner groove machining method |
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| PB01 | Publication | ||
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| C02 | Deemed withdrawal of patent application after publication (patent law 2001) | ||
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Application publication date: 20140409 |