CN102525598B - Cutting edge structure for bone cutting tool - Google Patents
Cutting edge structure for bone cutting tool Download PDFInfo
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- CN102525598B CN102525598B CN201210018692.3A CN201210018692A CN102525598B CN 102525598 B CN102525598 B CN 102525598B CN 201210018692 A CN201210018692 A CN 201210018692A CN 102525598 B CN102525598 B CN 102525598B
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- cutting edge
- bone
- cutting tool
- edge structure
- bone cutting
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Abstract
The invention belongs to the field of surgery, in particular relates to a cutting edge structure for a bone cutting tool and resolves the problem that an existing bone cutting tool is poor in stability and prone to slide in operation processes. A plurality of concave-convex structures extending to the end of a cutting edge are positioned on one side of the cutting edge, and the other side of the cutting edge is a smooth surface. The cutting edge structure for the bone cutting tool has the advantages of being high in using stability, greatly reducing risks in surgeries, in addition being convenient to maintain and prolonging service life of the bone cutting tool.
Description
Technical field
The invention belongs to surgery's category, be specifically related to a kind of cutting edge structure of bone cutting tool (as osteotome, osteotome, bone gouge etc.).
Background technology
The bone cutting tools such as osteotome, osteotome, bone gouge are the basic operative apparatuses of bone-culting operation, are widely used in the bone-culting operation of orthopaedics, the department of stomatology and other section office.When these instruments cut for bone, often need to punch hard cortical bone.Skeleton surface mostly is irregular arc, simultaneously because the instruments such as anatomical structure is limit, osteotome can not be squeezed into perpendicular to bone surface, even needs left and right, 30 °, inclination angle to squeeze into.These factors cause traditional cutting edge structure bone cutting tool in the time knocking for the first time, to have the risk that can not effectively enter sclerotin and slide to a side.It is more obvious when this slippage is squeezed into soft tissue (as annulus fibrosus disci intervertebralis) in the time of bone surface residual fraction soft tissue or with osteotome.The slippage of osteotome, except making troubles to operation technique, causes the risk of surrounding tissue damage simultaneously, and especially at spinal surgery, in the situation that spinal cord exposes, the pair damage that osteotome slippage causes may cause postoperative cerebral cerebrospinal fluid leakage, paralysis.
Summary of the invention
The present invention is in order to solve existing bone cutting tool poor stability, and the problem of easily sliding in operation process provides anti-skidding and has been convenient to a kind of cutting edge structure of the bone cutting tool of safeguarding.
The present invention adopts following technical scheme to realize:
A kind of cutting edge structure of bone cutting tool, cutting edge one side is provided with some concaveconvex structures that extend to blade end, and the opposite side of cutting edge is an even surface.
The start-up portion of concaveconvex structure is positioned at cutter hub.The concave portion of concaveconvex structure and the cross sectional shape of convex portion are triangle, rectangle, trapezoidal or arc.Shape or the gradual change from top to bottom such as from top to bottom of the cross sectional shape of concave portion and convex portion.
One side surface of bone cutting tool cutting edge structure of the present invention is provided with some concaveconvex structures that extend to blade end, the cutting edge shape of bone cutting tool is continuously concavo-convex shape like this, protuberance is easily broken through cortical bone, enter after cortical bone, bone cutting tool is difficult for changing to power position, and follow-up process of giving power also can not be slided.Wear and tear at blade in addition, the not sharp or concaveconvex structure of cutting edge is when impaired, even surface one side of polishing cutting edge, blade can become sharp with polishing, and along with the polishing of even surface, the continuous concaveconvex structure at blade place can restore to the original state with polishing, does not affect the stability that osteotome further uses.This bone cutting tool is squeezed into soft tissue at bone surface residual fraction soft tissue or with osteotome, has equally the stability that substantially exceeds common bone cutting tool during as annulus fibrosus disci intervertebralis.
Applicant also once attempted osteotome cutting edge to do engrail, and crown just can thrust hard cortical bone under slight external force like this, can effectively prevent that slippage from producing.But because cutting object is hard sclerotin, cutting edge is understood rust very soon, need daily polishing to safeguard.After the polishing of zigzag cutting edge, can fade away, and polish and can only sharpen sawtooth tip, cannot polish to the retraction part of sawtooth, thereby cannot effectively cut sclerotin.
Beneficial effect of the present invention: stability in use is high, has greatly reduced the risk of performing the operation, and in addition, is convenient to safeguard the service life of having improved bone cutting tool.
Brief description of the drawings
Fig. 1 is structural representation of the present invention,
Fig. 2 is the rearview of Fig. 1,
In figure: 1-handle of a knife, 2-cutter hub, 3-blade, 4-concave portion, 5-convex portion.
Detailed description of the invention
A kind of cutting edge structure of bone cutting tool, cutting edge one side is provided with some concaveconvex structures that extend to blade 3 ends, and the opposite side of cutting edge is an even surface.The start-up portion of concaveconvex structure is positioned at cutter hub 2.The concave portion 4 of concaveconvex structure and the cross sectional shape of convex portion 5 are triangle, rectangle, trapezoidal or arc.Shape or the gradual change from top to bottom such as from top to bottom of the cross sectional shape of concave portion 4 and convex portion 5.
The present invention adopts the mode that concaveconvex structure is set in cutting edge one side, forms continuous concaveconvex structure at blade place, plays anti-skidding effect.When cutting edge rust, need polishing while safeguarding, even surface one side of polishing cutting edge, blade can become sharp with polishing, and the continuous concaveconvex structure at blade place can recover with polishing, plays anti-skiddingly, and is convenient to the object of safeguarding.
Claims (4)
1. a kind of cutting edge structure of bone cutting tool, is characterized in that cutting edge one side is provided with some concaveconvex structures that extend to blade (3) end, and the opposite side of cutting edge is an even surface.
2. a kind of cutting edge structure of bone cutting tool according to claim 1, is characterized in that the described concave portion (4) of concaveconvex structure and the cross sectional shape of convex portion (5) are triangle, rectangle, trapezoidal or arc.
3. a kind of cutting edge structure of bone cutting tool according to claim 2, the cross sectional shape that it is characterized in that described concave portion (4) and convex portion (5) shape or the gradual change from top to bottom such as from top to bottom.
4. according to a kind of cutting edge structure of the bone cutting tool described in claim 1 or 2 or 3, it is characterized in that the start-up portion of concaveconvex structure is positioned at cutter hub (2).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201210018692.3A CN102525598B (en) | 2012-01-20 | 2012-01-20 | Cutting edge structure for bone cutting tool |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201210018692.3A CN102525598B (en) | 2012-01-20 | 2012-01-20 | Cutting edge structure for bone cutting tool |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN102525598A CN102525598A (en) | 2012-07-04 |
| CN102525598B true CN102525598B (en) | 2014-07-30 |
Family
ID=46334486
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201210018692.3A Active CN102525598B (en) | 2012-01-20 | 2012-01-20 | Cutting edge structure for bone cutting tool |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN102525598B (en) |
Citations (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN1561919A (en) * | 2004-03-22 | 2005-01-12 | 清华大学 | Supersonic skeleton cutting instrument |
| CN2776307Y (en) * | 2005-03-23 | 2006-05-03 | 刘昌水 | New type scalper |
| CN201042455Y (en) * | 2007-03-05 | 2008-04-02 | 纪建军 | Bone knife for fetching bone |
Family Cites Families (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN201456154U (en) * | 2009-07-16 | 2010-05-12 | 上海昆杰五金工具有限公司 | Combined structural woodworking chisel |
-
2012
- 2012-01-20 CN CN201210018692.3A patent/CN102525598B/en active Active
Patent Citations (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN1561919A (en) * | 2004-03-22 | 2005-01-12 | 清华大学 | Supersonic skeleton cutting instrument |
| CN2776307Y (en) * | 2005-03-23 | 2006-05-03 | 刘昌水 | New type scalper |
| CN201042455Y (en) * | 2007-03-05 | 2008-04-02 | 纪建军 | Bone knife for fetching bone |
Also Published As
| Publication number | Publication date |
|---|---|
| CN102525598A (en) | 2012-07-04 |
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