CN202086574U - Tool bit for ultrasonic osteotome with two circular arc-shaped edges - Google Patents
Tool bit for ultrasonic osteotome with two circular arc-shaped edges Download PDFInfo
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- CN202086574U CN202086574U CN2011201356157U CN201120135615U CN202086574U CN 202086574 U CN202086574 U CN 202086574U CN 2011201356157 U CN2011201356157 U CN 2011201356157U CN 201120135615 U CN201120135615 U CN 201120135615U CN 202086574 U CN202086574 U CN 202086574U
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- knife
- cutter head
- point
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Abstract
The utility model discloses a tool bit for an ultrasonic osteotome with two circular arc-shaped edges. The tool bit for an ultrasonic osteotome comprises a blade and a tool nose; the tool nose is positioned at the front end of the blade; the center of the tool nose is positioned on the lengthways axis of the tool bit; and circular arc-shaped grooves are formed between the center of the tool nose and two edges of the blade. By adopting the technical scheme of the utility model, the cutting speed can be improved, the operation time can be reduced, and the amount and the shape that a bone is cut can be controlled accurately.
Description
Technical field
This utility model relates to technical field of medical instruments, relates in particular to a kind of pair of circular arc sword piezosurgery osteotomy cutter head.
Background technology
In bone surgery, often use piezosurgery osteotomy to bone cut, grinding, planing, scraping or any reshaping.As shown in Figure 1, present piezosurgery osteotomy cutter head is multiple tooth, and the point of a knife part of broad is arranged, and how the point of a knife part is not effectively main cutting part.
There are the following problems for this piezosurgery osteotomy cutter head: cutting speed is slow, and efficient is low, and carrying load ability is poor, wastes energy; Fracture easily, service life is low; Complex-shaped, difficulty of processing height, production cost height.
The utility model content
The purpose of this utility model is to propose a kind of pair of circular arc sword piezosurgery osteotomy cutter head, can improve cutting speed, reduces operating time, and can accurately control cutting output and shape to bone.
For reaching this purpose, this utility model by the following technical solutions:
A kind of pair of circular arc sword piezosurgery osteotomy cutter head comprises blade and point of a knife, and described point of a knife is positioned at the positive front end of blade, on the longitudinal central axis line that is centered close to cutter head of point of a knife, all is circular groove between two edges of nose center and blade.
The thickness of described point of a knife is greater than the thickness of described blade.
Angle between the two ends line of the circular groove between described nose center and the blade edge and the horizontal line of nose center be 15 spend to 75 the degree.
Angle between the two ends line of the circular groove between described nose center and the blade edge and the horizontal line of nose center be 30 spend to 60 the degree.
Also comprise blade and connecting thread, blade one end connects blade, and an end is connected with connecting thread, and blade one end is thick cylinder, and an end is thin cylinder, and is middle by arc transition, and positive die nut position is set, and connecting thread is used for being connected with ultrasonic transducer.
Adopted the technical solution of the utility model, deep efficient height, speed are fast, have reduced operating time, reduce patient's misery, reduce doctor's labor intensity; The cutter head exquisiteness is small and exquisite, can accurately control cutting output and shape to bone, reduces the deep loss amount in the art, accelerates patient's recovery time; Hemostasis blood coagulation effect is arranged in deep process, reduce intraoperative blood loss; Reduce difficulty of processing, reduced production cost.
Description of drawings
Fig. 1 is the structural representation of piezosurgery osteotomy cutter head in the prior art scheme.
Fig. 2 is the structural representation of two circular arc sword piezosurgery osteotomy cutter heads in this utility model specific embodiment one.
Fig. 3 is the side schematic view of two circular arc sword piezosurgery osteotomy cutter heads in this utility model specific embodiment one.
Fig. 4 is the partial enlarged drawing of two circular arc sword piezosurgery osteotomy cutter heads in this utility model specific embodiment one.
Fig. 5 is the structural representation of two circular arc sword piezosurgery osteotomy cutter heads in this utility model specific embodiment two.
The specific embodiment
Further specify the technical solution of the utility model below in conjunction with accompanying drawing and by the specific embodiment.
The main thought of technical solutions of the utility model is on the planform of piezosurgery osteotomy cutter head, point of a knife is positioned on the central axis of whole cutter head, thereby the energy that ultrasonic transducer produced is all converged at the point of a knife part (the most effective working portion) of piezosurgery osteotomy cutter head, converge and be a bit, make the point of a knife of cutter head partly have the strongest energy output, reach the strongest work effect.
Fig. 2 is the structural representation of two circular arc sword piezosurgery osteotomy cutter heads in this utility model specific embodiment one.Fig. 3 is the side schematic view of two circular arc sword piezosurgery osteotomy cutter heads in this utility model specific embodiment one.As shown in Figures 2 and 3, what this pair circular arc sword piezosurgery osteotomy cutter head adopted is single main serrated knife point structure, comprises blade 1, point of a knife 2, connecting thread 3 and blade 4.
Point of a knife is positioned at the positive front end of blade, can be with whole energy centralizations of piezosurgery osteotomy to the point of a knife part.On the longitudinal central axis line that is centered close to cutter head of point of a knife, all be circular groove between two edges of nose center and blade.
Fig. 4 is the partial enlarged drawing of two circular arc sword piezosurgery osteotomy cutter heads in this utility model specific embodiment one.As shown in Figure 4, on one side angle β between the horizontal line of two ends line and nose center of circular groove between nose center and the blade edge 15 spend to 75 degree, commonly used is 30 spends to 60 and spends.
Angle theta between the two ends line of the circular groove between another side nose center and the blade edge and the horizontal line of nose center is 15 to spend to 75 degree, and commonly used is 30 spends to 60 degree, and angle β and angle theta can the combination in any collocation.
Blade one end connects blade, and an end is connected with connecting thread, and blade one end is thick cylinder, and an end is thin cylinder, and is middle by arc transition, and positive die nut position is set, and connecting thread is connected with ultrasonic transducer.The connecting thread of cutter head afterbody is connected with specific ultrasonic transducer, and tightens, again ultrasonic transducer is connected in specific ultrasonic main frame, can carry out work with corresponding spanner.
Fig. 5 is the structural representation of two circular arc sword piezosurgery osteotomy cutter heads in this utility model specific embodiment two.As shown in Figure 5, the structure of this pair circular arc sword piezosurgery osteotomy cutter head and the structure basically identical of the two circular arc sword piezosurgery osteotomy cutter heads in the specific embodiment one, just the thickness of point of a knife passes through arc transition greater than the thickness of blade between point of a knife and the blade.
The width that cuts out of point of a knife just greater than the thickness of blade, in operation process, the cutter stuck phenomenon just can not occur pressing from both sides when cutting the darker groove of thicker bone or cutting, window type otch so in use.In addition, point of a knife thickness has greatly also increased point of a knife intensity, has improved the service life of cutter head relatively.
The above; it only is the preferable specific embodiment of this utility model; but protection domain of the present utility model is not limited thereto; anyly be familiar with the people of this technology in the disclosed technical scope of this utility model; the variation that can expect easily or replacement all should be encompassed within the protection domain of the present utility model.Therefore, protection domain of the present utility model should be as the criterion with the protection domain of claim.
Claims (5)
1. a two circular arc sword piezosurgery osteotomy cutter head is characterized in that comprise blade and point of a knife, described point of a knife is positioned at the positive front end of blade, on the longitudinal central axis line that is centered close to cutter head of point of a knife, all is circular groove between two edges of nose center and blade.
2. a kind of pair of circular arc sword piezosurgery osteotomy cutter head according to claim 1 is characterized in that the thickness of described point of a knife is greater than the thickness of described blade.
3. according to claim 1 or 2 described a kind of pair of circular arc sword piezosurgery osteotomy cutter heads, it is characterized in that, the angle between the two ends line of the circular groove between described nose center and the blade edge and the horizontal line of nose center be 15 spend to 75 the degree.
4. a kind of pair of circular arc sword piezosurgery osteotomy cutter head according to claim 3 is characterized in that, the angle between the two ends line of the circular groove between described nose center and the blade edge and the horizontal line of nose center be 30 spend to 60 the degree.
5. according to claim 1 or 2 described a kind of pair of circular arc sword piezosurgery osteotomy cutter heads, it is characterized in that, also comprise blade and connecting thread, blade one end connects blade, and an end is connected with connecting thread, and blade one end is thick cylinder, one end is thin cylinder, middle by arc transition, and positive die nut position is set, connecting thread is used for being connected with ultrasonic transducer.
Priority Applications (2)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2011201356157U CN202086574U (en) | 2011-05-03 | 2011-05-03 | Tool bit for ultrasonic osteotome with two circular arc-shaped edges |
| PCT/CN2012/071952 WO2012149837A1 (en) | 2011-05-03 | 2012-03-05 | Piezosurgery tool bit |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2011201356157U CN202086574U (en) | 2011-05-03 | 2011-05-03 | Tool bit for ultrasonic osteotome with two circular arc-shaped edges |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN202086574U true CN202086574U (en) | 2011-12-28 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN2011201356157U Expired - Lifetime CN202086574U (en) | 2011-05-03 | 2011-05-03 | Tool bit for ultrasonic osteotome with two circular arc-shaped edges |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN202086574U (en) |
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102475567A (en) * | 2011-05-03 | 2012-05-30 | 江苏水木天蓬科技有限公司 | Ultrasonic bone knife head |
| WO2012149837A1 (en) * | 2011-05-03 | 2012-11-08 | 江苏水木天蓬科技有限公司 | Piezosurgery tool bit |
| CN104323820A (en) * | 2014-11-05 | 2015-02-04 | 中国人民解放军第二军医大学 | Vertebral arch pedicle bone chisel with arc-shaped cutting edge and application thereof |
| CN106102623A (en) * | 2014-07-02 | 2016-11-09 | 奥林巴斯株式会社 | Ultrasonic probe and ultrasonic operation system |
-
2011
- 2011-05-03 CN CN2011201356157U patent/CN202086574U/en not_active Expired - Lifetime
Cited By (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102475567A (en) * | 2011-05-03 | 2012-05-30 | 江苏水木天蓬科技有限公司 | Ultrasonic bone knife head |
| WO2012149837A1 (en) * | 2011-05-03 | 2012-11-08 | 江苏水木天蓬科技有限公司 | Piezosurgery tool bit |
| CN102475567B (en) * | 2011-05-03 | 2014-07-09 | 江苏水木天蓬科技有限公司 | Ultrasonic bone knife head |
| CN106102623A (en) * | 2014-07-02 | 2016-11-09 | 奥林巴斯株式会社 | Ultrasonic probe and ultrasonic operation system |
| CN106102623B (en) * | 2014-07-02 | 2018-09-28 | 奥林巴斯株式会社 | Ultrasonic probe and ultrasonic operation system |
| CN104323820A (en) * | 2014-11-05 | 2015-02-04 | 中国人民解放军第二军医大学 | Vertebral arch pedicle bone chisel with arc-shaped cutting edge and application thereof |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| CX01 | Expiry of patent term | ||
| CX01 | Expiry of patent term |
Granted publication date: 20111228 |