[특허]Dental syringe tip

Dental syringe tip 원문보기

IPC분류정보
국가/구분	United States(US) Patent 등록
국제특허분류(IPC7판)	A61C-005/04
출원번호	US-0477631 (1990-02-09)
발명자 / 주소	Dragan William B. (85 Burr St. Easton CT 06612)
인용정보	피인용 횟수 : 34 인용 특허 : 0

초록 ▼

This disclosure is directed to a dental syringe and a disposable syringe tip for use therewith, and more particularly to an improved syringe tip constructed to minimize the entrainment of air by the material being extruded and to provide a dentist with a maximum of visibility during use. The syringe tip includes a cylindrical body portion to define a reservoir that is provided with a conically shaped, closed front end and a full opening at the other end, which is adapted to be sealed by a displaceable piston. The closed front end is provided with an internal frusto-conical chamber disposed in communication with an angularly offset discharge nozzle having its passageway at the inner end thereof disposed contiguous to the blunt end of the internally disposed frusto-conical chamber; and the disposable piston having a frusto-conical end portion to complement the shape of the internal front end of the syringe tip to enhance the complete evacuation of the material disposed within the syringe tip without the entrainment of any air. In an embodiment of this invention, the syringe tip is provided with a color code comprising a colored sealing cap and/or a colored piston for identifying the type and/or shade of the material contained therein.

대표청구항 ▼

A syringe tip for use in a dental syringe for the placement of a predetermined amount of a viscous dental filling material in a tooth comprising: a body portion having a generally cylindrical shape to define a reservoir portion for containing a predetermined amount of dental filling material, said body portion having an opening co-extensive to the cylindrical shape of said reservoir portion at one end thereof, a series of longitudinally extending ribs circumferentially spaced about the external surface of said body portion, said ribs extending along a substantial length of said syringe tip, a laterally extending flange circumscribing said opening, and said body portion having a tapering sealed end at the other end thereof disposed in axial alignment with the axis of said body portion, said tapering sealed end having an internal conically shaped wall surface tapering toward said sealed end to define a blunt internal end wall, said internal conically shaped wall surface defining an internally frustro conical chamber being disposed in open communication with said reservoir portion, and a discharge nozzle angularly disposed relative to said sealed tip end, said discharge nozzle having an inlet disposed contiguous to said blunt end wall, said discharge nozzle including a passageway through which the material contained in said reservoir portion is adapted to be extruded, and a displaceable piston for sealing the open end of said reservoir portion.

이 특허를 인용한 특허 (34)

Joachim E. Klee DE; Hans-Heinrich Horhold DE; Frank Claussen DE, .alpha., .omega.-methacrylate terminated macromonomer compounds.
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Simon, Boris, Application pen.
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Peuker, Marc; Boehm, Andreas J., Application tip and system for dispensing a dental material.
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Kenneth S. Peterson ; Phillip Edward Mark, Applicator tip for dental materials.
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Spreizer, Heinrich, Capsule and piston.
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Muhlbauer Ernst (Elbgaustrasse 248 22547 Hamburg DEX), Delivery syringe for dental compound.
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Dragan, William B.; Rowe, Gordon, Dental capsule for placement of high viscosity dental composite material with reduce extrusion force.
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Dragan William B., Dental capsule for placement of ultra-high viscosity dental composite material.
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William B. Dragan, Dental capsule for placement of ultra-high viscosity dental composite material.
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Dragan William B. ; Discko ; Jr. John J., Dental container type applicator.
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Klee Joachim E.,DEX ; Leube Walter,DEX, Dental polymer product.
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Petrich Robert W. ; Martin Thomas W. ; Kvitrud James R., Dispensing cartridge with stepped chamber.
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Goodis, Charles J., Endodontic files and obturator devices and methods of manufacturing same.
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Goodis, Charles J., Endodontic files and obturator devices and methods of manufacturing same.
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Fischer,Dan E.; Lewis,Paul, Fiber-coated dental infusor systems and methods of use.
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Mark Phillip E., Fluid applicator.
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Mössle, Walter, Hand apparatus for dispensing a pasty filler mass and container for receiving a curable medical filler mass.
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Mossle, Walter, Hand apparatus, in particular for dental purposes, for dispensing a pasty filler mass.
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Mössle, Walter, Hand apparatus, in particular for dental purposes, for dispensing a pasty filler mass.
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Pond Gary J., Handheld device for applying dental materials.
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Grutzner Andreas (Reichenan DEX), Hue and lightness identification system for dental products.
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Joachim E. Klee DE; Holger Frey DE; Dirk Holter DE; Rolf Mulhaupt DE, Liquid crystalline (meth)acrylate compounds, composition and method.
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Klee Joachim E.,DEX ; Frey Holger,DEX ; Holter Dirk,DEX ; Mulhaupt Rolf,DEX, Liquid crystalline (meth)acrylate compounds, composition and method.
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Evers, Markus; Walz, Uwe; Grutzner, Andreas E.; Klee, Joachim E., Method for dispensing dental materials.
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Limaye, Amit; Levine, Claire L.; Rosen, Edward J.; Reiners, Rick P.; deFreese, Matthew J., Needle hub for medical syringe.
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Limaye, Amit; Levine, Claire L.; Rosen, Edward J.; Reiners, Rick P.; deFreese, Matthew J., Needle hub for medical syringe.
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Joachim E. Klee DE; Uwe Walz DE, Polymerizable compounds and compositions.
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Perrin, Ian James, Shape optimized headers and methods of manufacture thereof.
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Wong Nelson J. ; Montgomery John W., Step-back eliminating tapered dental cutting instruments for improved root canal treatment and method.
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Wong Nelson J. ; Montgomery John W., Step-back eliminating tapered dental cutting instruments for improved root canal treatment and method.
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Limaye, Amit; Levine, Claire L.; Rosen, Edward J.; deFreese, Matthew J.; Reiners, Rick P., Syringe with visually coded needle hub.
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Limaye, Amit; Levine, Claire; deFreese, Matthew; Reiners, Rick; Rosen, Edward, Syringe with visually coded needle hub.
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Limaye, Amit; Levine, Claire; deFreese, Matthew; Reiners, Rick; Rosen, Edward, Syringe with visually coded needle hub.
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Jessop,Neil; McLean,Bruce S.; Tuttle,Richard; Bills,Dan J.; Sheetz,Jared, Venting syringe plunger.
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IPC	Description
A	생활필수품
A62	인명구조; 소방(사다리 E06C)
A62B	인명구조용의 기구, 장치 또는 방법(특히 의료용에 사용되는 밸브 A61M 39/00; 특히 물에서 쓰이는 인명구조 장치 또는 방법 B63C 9/00; 잠수장비 B63C 11/00; 특히 항공기에 쓰는 것, 예. 낙하산, 투출좌석 B64D; 특히 광산에서 쓰이는 구조장치 E21F 11/00)
A62B-1/08	.. 윈치 또는 풀리에 제동기구가 있는 것

내보내기 구분	파일저장 인쇄 메일전송
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Dental syringe tip 원문보기

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이 특허를 인용한 특허 (34)

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이 특허를 인용한 특허 (34)

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