Device for dispensing a dental substance and method of dispensing
IPC분류정보
국가/구분
United States(US) Patent
등록
국제특허분류(IPC7판)
B67D-001/00
A61C-009/00
B65D-081/32
B05C-017/005
B05C-017/01
B65D-083/00
출원번호
US-0235139
(2012-07-27)
등록번호
US-9283060
(2016-03-15)
우선권정보
EP-11175728 (2011-07-28)
국제출원번호
PCT/US2012/048561
(2012-07-27)
§371/§102 date
20140129
(20140129)
국제공개번호
WO2013/016642
(2013-01-31)
발명자
/ 주소
Peuker, Marc
Pauser, Helmut
Bertl, Mathias
Althoff, Olaf
출원인 / 주소
3M Innovative Properties Company
대리인 / 주소
Einerson, Nicole J.
인용정보
피인용 횟수 :
1인용 특허 :
12
초록▼
A device for dispensing a dental substance. The device includes a cartridge for containing the dental substance. The cartridge has a plunger, and a dispensing opening. Further the device is operable to urge the dental substance toward the dispensing opening. The device further includes a cutter for
A device for dispensing a dental substance. The device includes a cartridge for containing the dental substance. The cartridge has a plunger, and a dispensing opening. Further the device is operable to urge the dental substance toward the dispensing opening. The device further includes a cutter for cutting off a portion of the dental substance which protrudes over the dispensing opening. The device may particularly facilitate precise dispensation of a high viscosity dental substance.
대표청구항▼
1. A device for dispensing a dental substance, the device comprising: a cartridge for containing the dental substance and a plunger, the cartridge comprising a dispensing opening,a screw mechanism which is operable to urge the dental substance toward the dispensing opening of the cartridge,a closure
1. A device for dispensing a dental substance, the device comprising: a cartridge for containing the dental substance and a plunger, the cartridge comprising a dispensing opening,a screw mechanism which is operable to urge the dental substance toward the dispensing opening of the cartridge,a closure being adapted to openably close the dispensing opening, wherein the closure comprises a cutter for cutting off a portion of the dental substance which protrudes over the dispensing opening, wherein the closure has a closure wall through which an orifice extends, the closure and the cartridge being movable relative to each other between a closed position in which the closure wall covers the dispensing opening and an open position in which the dispensing opening and the orifice overlap at least partially, andthe device being adapted to provide an indication of a predetermined amount of dental substance being dispensed,wherein the indication comprises an audible click provided by a ratchet permitting relative rotation of the plunger and the cartridge in a dispensing direction and restricting rotation in the opposite direction, wherein the ratchet comprises a pawl and a complementary groove, wherein the pawl cooperates with the complementary groove to enable rotation in the opposite direction of the dispensing direction, while the pawl and the complementary groove are engaged, over a predetermined distance, to cause the closure and the cartridge to move relative to each other to the closed position. 2. The device of claim 1, wherein the closure forms or comprises a handle by which the closure can be held and operated by a user of the device. 3. The device of claim 1, wherein the dispensing opening and the orifice have generally circular cross-sections of generally equal diameters. 4. The device of claim 1, wherein the closure forms a slide valve or a rotary slide valve. 5. The device of claim 1, comprising at least a component of a type 0 dental impression material. 6. The device of claim 1, wherein the plunger is threaded and forms part of the screw mechanism. 7. The device of claim 1, wherein the cartridge is adapted for containing two dental substances separate from each other, the cartridge further having a further dispensing opening, and wherein the closure has a further orifice for opening the further dispensing opening in the open position of the closure. 8. The device of claim 1, wherein the pawl of the ratchet cooperates with the complementary groove to enable the rotation in the opposite direction of the dispensing direction to a position where the pawl and the groove are interlocked and further rotation in the opposite direction is restricted. 9. The device of claim 1, wherein the pawl of the ratchet has a general L-shaped structure, and wherein the complementary groove has a complementary L-shaped structure. 10. The device of claim 1, wherein the closure wall forms a circumferential cutting edge delimiting the orifice. 11. The device of claim 10, wherein the cartridge has an outward convex cartridge end face through which the dispensing opening extends, the cartridge end face generally corresponds in shape to a portion of an imaginary sphere, and wherein the cutting edge extends along a line on the same imaginary sphere. 12. A device for dispensing a dental substance, the device comprising: a cartridge for containing the dental substance and a plunger, the cartridge comprising a dispensing opening,a screw mechanism which is operable to urge the dental substance toward the dispensing opening of the cartridge,a closure being adapted to openably close the dispensing opening, wherein the closure comprises a cutter for cutting off a portion of the dental substance which protrudes over the dispensing opening, wherein the closure has a closure wall through which an orifice extends, the closure and the cartridge being movable relative to each other between a closed position in which the closure wall covers the dispensing opening and an open position in which the dispensing opening and the orifice overlap at least partially, andthe device being adapted to provide an indication of a predetermined amount of dental substance being dispensed,wherein the indication comprises an audible click provided by a ratchet permitting relative rotation of the plunger and the cartridge in a dispensing direction and restricting rotation in the opposite direction, wherein the ratchet comprises a pawl and a complementary groove, wherein the pawl and the complementary groove cooperate such that at the point when the pawl enters into the complementary groove, a predetermined amount of rotation in the opposite direction is allowed to enable rotation in the opposite direction of the dispensing direction over a predetermined distance. 13. The device of claim 12, wherein the rotation in the opposite direction of the dispensing direction over the predetermined distance causes the closure and the cartridge to move relative to each other to the closed position. 14. The device of claim 12, wherein the pawl of the ratchet cooperates with the complementary groove to enable the rotation in the opposite direction of the dispensing direction over the predetermined distance to a position where the pawl and the groove are interlocked and further rotation in the opposite direction is restricted. 15. The device of claim 12, wherein the pawl of the ratchet has a general L-shaped structure, and wherein the complementary groove has a complementary L-shaped structure. 16. The device of claim 12, wherein the closure forms or comprises a handle by which the closure can be held and operated by a user of the device. 17. The device of claim 12, wherein the closure wall forms a circumferential cutting edge delimiting the orifice. 18. The device of claim 12, wherein the dispensing opening and the orifice have generally circular cross-sections of generally equal diameters. 19. The device of claim 12, wherein the closure forms a slide valve or a rotary slide valve. 20. The device of claim 12, wherein the plunger is threaded and forms part of the screw mechanism.
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이 특허에 인용된 특허 (12)
Anderson Steven R. (Edina MN), Composite cartridge and device for metering extrusion of contents.
Jimenez, Eduardo J.; Kennedy, Sharon; Sorrentino, Alan; Gatzemeyer, John J.; Rooney, Michael; Fattori, Joseph E., Oral care dispenser and oral care system implementing the same.
Horstman Richard L. ; Oder Reuben E. ; Prosise Robert L. ; Pieper Kathleen A. ; Smith Genevieve R. ; Dirksing Robert S. ; Baggott Susan B., Simplified undirectional twist-up dispensing device with incremental dosing.
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