CN202146339U - Knife head of ultrasonic bone knife with double-arc edge - Google Patents
Knife head of ultrasonic bone knife with double-arc edge Download PDFInfo
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- CN202146339U CN202146339U CN201120246720U CN201120246720U CN202146339U CN 202146339 U CN202146339 U CN 202146339U CN 201120246720 U CN201120246720 U CN 201120246720U CN 201120246720 U CN201120246720 U CN 201120246720U CN 202146339 U CN202146339 U CN 202146339U
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- knife
- blade
- point
- cutter head
- circular arc
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Abstract
The utility model discloses a knife head of an ultrasonic bone knife with a double-arc edge, comprising a knife blade and a knife tip; an included angle is formed between the longitudinal axle wire of the knife blade and the longitudinal axle wire of the knife tip; a knife edge is arranged at the right front end of the knife tip; the center of the knife edge is located on the longitudinal axle wire of the knife tip; and arc grooves are formed between the center of the knife edge and two edges of the knife tip. By adopting the technical scheme in the utility model, the surgical field is open and clear, the operation and the use are convenient, the load capability is strong, the cutting speed is increased and the cutting amounts and the shapes of bones can be accurately controlled.
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 is following problem in 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 is high, and production cost is high.
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, and surgical field of view is open clear, is convenient to manipulate, and carrying load ability is powerful, improves cutting speed, and can accurately control cutting output and the shape to bone.
For reaching this purpose, this utility model adopts following technical scheme:
A kind of pair of circular arc sword piezosurgery osteotomy cutter head; Comprise blade and point of a knife; Present angle between the longitudinal central axis line of blade and the longitudinal central axis line of point of a knife; The positive front end of point of a knife is provided with blade, and the longitudinal central axis line that is centered close to point of a knife of blade all is a circular groove between two edges of blade center and point of a knife.
Angle between the longitudinal central axis line of blade and the longitudinal central axis line of point of a knife be 0 spend to 90 the degree.
Angle between the longitudinal central axis line of blade and the longitudinal central axis line of point of a knife be 10 spend to 70 the degree.
Angle between the two ends line of the circular groove between said blade center and the point of a knife edge and the horizontal line at blade center be 15 spend to 75 the degree.
Angle between the two ends line of the circular groove between said blade center and the point of a knife edge and the horizontal line at blade center be 30 spend to 60 the degree.
The thickness of said point of a knife is greater than the thickness of said blade.
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 through arc transition, and positive die nut position is set.
Adopted the technical scheme of this utility model, carrying load ability is stronger, and deep efficient is high, speed is fast, has reduced operating time, reduces less patient suffering, reduces doctor's labor intensity; Because point of a knife has certain flexibility, surgical field of view is openr clear, is convenient to more manipulate; 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 local enlarged diagram of two circular arc sword piezosurgery osteotomy cutter heads in this utility model specific embodiment one.
Fig. 5 is the local structure for amplifying sketch map of two circular arc sword piezosurgery osteotomy cutter heads in this utility model specific embodiment two.
The specific embodiment
Further specify the technical scheme of this utility model below in conjunction with accompanying drawing and through the specific embodiment.
The main thought of this utility model technical scheme is on the planform of piezosurgery osteotomy cutter head.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 local enlarged diagram of two circular arc sword piezosurgery osteotomy cutter heads in this utility model specific embodiment one.Like Fig. 2, Fig. 3 and shown in Figure 4, what this pair circular arc sword piezosurgery osteotomy cutter head adopted is single main toothing, comprises blade 1, point of a knife 2, blade 4 and connecting thread 5.
Present angle δ between the longitudinal central axis line of blade and the longitudinal central axis line of point of a knife; Angle δ be 0 spend to 90 the degree, usual range be 10 spend to 70 the degree, natural shape is at a tilt angle between point of a knife and the whole cutter; Make be cut in use between place and the cutter also can natural shape at a tilt angle; Reach the effect of bowin knife, thereby enlarged surgical field of view, be convenient to operate piezosurgery osteotomy more.
Between two edges of blade center and point of a knife all is circular groove, and blade center and the point of a knife scope of the angle β between the horizontal line at two ends line and the blade center of the circular groove between the edge are on one side spent to 75 degree 15, and commonly used is 30 to spend to 60 and spend; The scope of the angle theta between the two ends line of the circular groove between blade center and the point of a knife another side edge and the horizontal line at blade center is spent to 75 degree 0, and commonly used is 30 to spend to 60 degree; Angle beta and angle θ can the combination in any collocation.
Positive front end at point of a knife is provided with blade 3; The longitudinal central axis line that is centered close to point of a knife of blade; This structure all converges at the energy that ultrasonic transducer produced the knife edge part (the most effectively working portion) of piezosurgery osteotomy cutter head; Converge and be a bit, make the knife edge part of cutter head have the strongest energy output, reach the strongest work.
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 through arc transition, and positive die nut position is set, and connecting thread is used for being 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 local structure for amplifying sketch map 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 a of point of a knife passes through the circular arc R transition greater than the thickness b 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; Be merely the preferable specific embodiment of this utility model; But the protection domain of this utility model is not limited thereto; Anyly be familiar with this technological people in the technical scope that this utility model disclosed, the variation that can expect easily or replacement all should be encompassed within the protection domain of this utility model.Therefore, the protection domain of this utility model should be as the criterion with the protection domain of claim.
Claims (7)
1. two circular arc sword piezosurgery osteotomy cutter head; It is characterized in that; Comprise blade and point of a knife, present angle between the longitudinal central axis line of blade and the longitudinal central axis line of point of a knife, the positive front end of point of a knife is provided with blade; The longitudinal central axis line that is centered close to point of a knife of blade all is a circular groove between two edges of blade center and point of a knife.
2. a kind of pair of circular arc sword piezosurgery osteotomy cutter head according to claim 1 is characterized in that, the angle between the longitudinal central axis line of blade and the longitudinal central axis line of point of a knife be 0 spend to 90 the degree.
3. a kind of pair of circular arc sword piezosurgery osteotomy cutter head according to claim 1 is characterized in that, the angle between the longitudinal central axis line of blade and the longitudinal central axis line of point of a knife be 10 spend to 70 the degree.
4. a kind of pair of circular arc sword piezosurgery osteotomy cutter head according to claim 1 is characterized in that, the angle between the two ends line of the circular groove between said blade center and the point of a knife edge and the horizontal line at blade center be 15 spend to 75 the degree.
5. a kind of pair of circular arc sword piezosurgery osteotomy cutter head according to claim 1 is characterized in that, the angle between the two ends line of the circular groove between said blade center and the point of a knife edge and the horizontal line at blade center be 30 spend to 60 the degree.
6. a kind of pair of circular arc sword piezosurgery osteotomy cutter head according to claim 1 is characterized in that the thickness of said point of a knife is greater than the thickness of said blade.
7. according to the described a kind of pair of circular arc sword piezosurgery osteotomy cutter head of arbitrary claim among the claim 1-6, it is characterized in that, also comprise blade and connecting thread; Blade one end connects blade; One end is connected with connecting thread, and blade one end is thick cylinder, and an end is thin cylinder; Middle through arc transition, and positive die nut position is set.
Priority Applications (2)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201120246720U CN202146339U (en) | 2011-07-14 | 2011-07-14 | Knife head of ultrasonic bone knife with double-arc edge |
| PCT/CN2012/072759 WO2013007116A1 (en) | 2011-07-13 | 2012-03-21 | Ultrasonic osteotome head |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201120246720U CN202146339U (en) | 2011-07-14 | 2011-07-14 | Knife head of ultrasonic bone knife with double-arc edge |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN202146339U true CN202146339U (en) | 2012-02-22 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201120246720U Expired - Lifetime CN202146339U (en) | 2011-07-13 | 2011-07-14 | Knife head of ultrasonic bone knife with double-arc edge |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN202146339U (en) |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| WO2012149837A1 (en) * | 2011-05-03 | 2012-11-08 | 江苏水木天蓬科技有限公司 | Piezosurgery tool bit |
| WO2013007116A1 (en) * | 2011-07-13 | 2013-01-17 | 北京水木天蓬医疗技术有限公司 | Ultrasonic osteotome head |
| EP3025659A4 (en) * | 2013-07-22 | 2017-01-11 | Cao, Qun | Piezosurgery tool bit and piezosurgery tool having same |
-
2011
- 2011-07-14 CN CN201120246720U patent/CN202146339U/en not_active Expired - Lifetime
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| WO2012149837A1 (en) * | 2011-05-03 | 2012-11-08 | 江苏水木天蓬科技有限公司 | Piezosurgery tool bit |
| WO2013007116A1 (en) * | 2011-07-13 | 2013-01-17 | 北京水木天蓬医疗技术有限公司 | Ultrasonic osteotome head |
| EP3025659A4 (en) * | 2013-07-22 | 2017-01-11 | Cao, Qun | Piezosurgery tool bit and piezosurgery tool having same |
| US10085761B2 (en) | 2013-07-22 | 2018-10-02 | Qun Cao | Tool bit of ultrasonic osteotome and ultrasonic osteotome including the same |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| DD01 | Delivery of document by public notice | ||
| DD01 | Delivery of document by public notice |
Addressee: Beijing SMTP Technology Co.,Ltd. Document name: Notice of examination and approval of fee reduction |
|
| CX01 | Expiry of patent term | ||
| CX01 | Expiry of patent term |
Granted publication date: 20120222 |