Ultrasonic tip for an apicoectomy, and method for manufacturing same
원문보기
IPC분류정보
국가/구분
United States(US) Patent
등록
국제특허분류(IPC7판)
B22F-003/24
A61C-003/03
A61B-017/00
A61B-017/32
출원번호
US-0581449
(2010-08-25)
등록번호
US-9060828
(2015-06-23)
우선권정보
KR-10-2010-0016889 (2010-02-25)
국제출원번호
PCT/KR2010/005706
(2010-08-25)
§371/§102 date
20121101
(20121101)
국제공개번호
WO2011/105669
(2011-09-01)
발명자
/ 주소
Kwon, Young Sam
Lee, In Hwan
출원인 / 주소
CETATECH, INC.
대리인 / 주소
Heslin Rothenberg Farley & Mesiti P.C.
인용정보
피인용 횟수 :
0인용 특허 :
4
초록▼
The invention relates to a method for manufacturing an ultrasonic tip for an apicoectomy, such that the tip has a shape suitable for the shape of a tooth root, comprising the steps of: forming a feedstock by mixing a metal powder including stainless steel with a binder; injecting the feedstock to fo
The invention relates to a method for manufacturing an ultrasonic tip for an apicoectomy, such that the tip has a shape suitable for the shape of a tooth root, comprising the steps of: forming a feedstock by mixing a metal powder including stainless steel with a binder; injecting the feedstock to form an injection-molded part having a plurality of projections integrally formed on the surface thereof; performing debinding to remove the binder from the injection-molded part; sintering the injection-molded part; and performing annealing to increase the ductility and facilitate the bending of the sintered part.
대표청구항▼
1. A method for manufacturing an ultrasonic tip for an apicoectomy, the method comprising: forming a feedstock by mixing a metal powder including stainless steel with a binder;injecting the feedstock to form an injection-molded part having a plurality of projections integrally formed on the surface
1. A method for manufacturing an ultrasonic tip for an apicoectomy, the method comprising: forming a feedstock by mixing a metal powder including stainless steel with a binder;injecting the feedstock to form an injection-molded part having a plurality of projections integrally formed on the surface thereof;performing debinding to remove the binder from the injection-molded part;sintering the injection-molded part; andperforming annealing to increase a ductility and facilitate a bending of the sintered part,wherein the ultrasonic tip comprises a shank portion, a body portion, and a leading edge portion, and wherein the projections include one or more projections selected from the group consisting of projections having a circular conic shape, a polygonal pyramid shape, a truncated conic shape, a truncated polygonal pyramid shape, a circular cylindrical shape, a polyhedral shape, and an ellipsoidal shape, and wherein the projections are arranged linearly along a length of the leading edge portion, and not spirally along a circumference of the leading edge portion. 2. The method of claim 1, wherein the annealing is performed at a temperature of 400° C. to 1250° C. so that the body portion and the leading edge portion are bendable. 3. The method of claim 2, further comprising: bending a part of the leading edge portion, wherein the bending is performed after the annealing. 4. The method of claim 2, wherein each of the projections has the same size and the same shape. 5. The method of claim 2, wherein the projections have different sizes and different shapes. 6. The method of claim 2, wherein the projections include one or more projections having a circular or elliptical base side. 7. The method of claim 2, wherein the leading edge portion has a cross-sectional area that tapers towards an end of the leading edge portion, wherein the projections become smaller towards the end. 8. A method for manufacturing an ultrasonic tip for an apicoectomy, the method comprising: forming a feedstock by mixing a metal powder including stainless steel with a binder;injecting the feedstock to form an injection-molded part having a plurality of projections integrally formed on the surface thereof;performing debinding to remove the binder from the injection-molded part;sintering the injection-molded part; andperforming annealing to increase a ductility and facilitate a bending of the sintered part, wherein the ultrasonic tip comprises a shank portion, a body portion, and a leading edge portion, and wherein the projections include one or more projections selected from the group consisting of projections having a circular conic shape, a polygonal pyramid shape, a truncated conic shape, a truncated polygonal pyramid shape, a circular cylindrical shape, a polyhedral shape, and an ellipsoidal shape, wherein the leading edge portion has a cross-sectional area that tapers towards an end of the leading edge portion, and wherein the projections become smaller towards the end. 9. The method of claim 8, wherein the annealing is performed at a temperature of 400° C. to 1250° C. so that the body portion and the leading edge portion are bendable. 10. The method of claim 9, further comprising: bending a part of the leading edge portion, wherein the bending is performed after the annealing. 11. The method of claim 9, wherein each of the projections has the same size and the same shape. 12. The method of claim 9, wherein the projections have different sizes and different shapes. 13. The method of claim 9, wherein the projections are arranged linearly along a length of the leading edge portion, or are arranged spirally along a circumference of the leading edge portion. 14. The method of claim 13, wherein the projections are arranged linearly along a length of the leading edge portion. 15. The method of claim 9, wherein the projections include one or more projections having a circular or elliptical base side.
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이 특허에 인용된 특허 (4)
Dan E. Fischer, Endodontic irrigator tips having cannulas with annealed distal portions and related methods.
Hwang, Chul Jin; Park, Hyung Pil; Ko, Young Bae; Heo, Young Moo; Kim, Jong Sun, Method for manufacturing dental scaler tip using powder injection molding process, mold used therein and scaler tip manufactured by the same.
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