WO2002039920A1 - A dental capsule - Google Patents

A dental capsule Download PDF

Info

Publication number
WO2002039920A1
WO2002039920A1 PCT/AU2001/001477 AU0101477W WO0239920A1 WO 2002039920 A1 WO2002039920 A1 WO 2002039920A1 AU 0101477 W AU0101477 W AU 0101477W WO 0239920 A1 WO0239920 A1 WO 0239920A1
Authority
WO
WIPO (PCT)
Prior art keywords
dental
container portion
nozzle
capsule
dental capsule
Prior art date
Application number
PCT/AU2001/001477
Other languages
French (fr)
Inventor
Joshua James Cheetham
Paul James Farrar
Original Assignee
Sdi Limited
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Application filed by Sdi Limited filed Critical Sdi Limited
Priority to AU2002223269A priority Critical patent/AU2002223269A1/en
Publication of WO2002039920A1 publication Critical patent/WO2002039920A1/en

Links

Classifications

    • A—HUMAN NECESSITIES
    • A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
    • A61C—DENTISTRY; APPARATUS OR METHODS FOR ORAL OR DENTAL HYGIENE
    • A61C5/00—Filling or capping teeth
    • A61C5/60—Devices specially adapted for pressing or mixing capping or filling materials, e.g. amalgam presses
    • A61C5/66—Capsules for filling material
    • A—HUMAN NECESSITIES
    • A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
    • A61C—DENTISTRY; APPARATUS OR METHODS FOR ORAL OR DENTAL HYGIENE
    • A61C5/00—Filling or capping teeth
    • A61C5/60—Devices specially adapted for pressing or mixing capping or filling materials, e.g. amalgam presses
    • A61C5/62—Applicators, e.g. syringes or guns

Definitions

  • the present invention relates to a dental capsule.
  • a dental capsule for dispensing a dental substance characterised by comprising a nozzle and a container portion arranged to contain a dental substance, the container portion having an open end arranged to receive a plunger, and wherein the container portion includes at least one air conduit such that, in use, when the plunger is received in the open end of the container portion and moved toward the dental substance, air within the container portion between the plunger and the dental substance is displaced by the plunger and expelled from the container portion through the or each air conduit.
  • Figure 1 is a cross sectional view of a dental capsule in accordance with the present invention
  • Figure 2 is a cut away perspective view of a first end of the dental capsule of Figure 1
  • Figure 3 a is an end view of the first end of a dental capsule in accordance with the present invention
  • Figure 3b is an end view of the first end of an alternative embodiment of a dental capsule in accordance with the present invention
  • Figure 3 c is an end view of the first end of a further alternative embodiment of a dental capsule in accordance with the present invention.
  • a dental capsule 10 having a nozzle 12, a container portion 14 and a plunger 16.
  • the container portion 14 is enclosed at a second end 24 thereof by a part spherical end portion 26 and is open at a first end 22.
  • the container portion 14 has an exterior surface 18 which is substantially cylindrical in cross sectional shape from the first end 22 of the container portion 14 to the part spherical end portion 26.
  • a dental substance 25 can thus be stored within the container portion 14 in a region extending from the second end 24 towards the first end 22.
  • the exterior surface 18 includes a flange portion 28 adjacent the first end 22 of the container portion 14.
  • the flange portion 28 allows the dental capsule 10, in use, to be held within an applicator of known type (not shown).
  • the nozzle 12 is substantially tubular, and extends from the second end 24 of the
  • the nozzle 14 is substantially circular in cross section, and extends from the part spherical end portion 26 of the container portion 14 to an outer end 30 remote from the container portion 14.
  • the nozzle 14 is of substantially constant external cross section along a length of the nozzle 14 extending from the container portion 14, and includes a dispensing region 32 with a reduced cross sectional dimension adjacent the outer end 30.
  • the nozzle 14 has an internal diameter less than 0.6mm, and a length greater than 10mm.
  • the container portion 14 has an inner surface 20 which generally follows the shape of the exterior surface 18, having a substantially cylindrical portion extending from the first end 22 to the part spherical end portion 26.
  • the inner surface 20 of the part spherical end portion 26 of the container portion 14 also includes a substantially planar portion 34 at the second end 24 of the container portion 14.
  • the substantially planar portion 34 is oriented in substantially the same direction as the nozzle 12.
  • Other forms of the invention may include an inner surface 20 which is part spherical at the second end 24, with no planar portion 34.
  • the inner surface 20 of the container portion 14 further includes at least one air conduit 36 in the form of a groove or grooves extending longitudinally from the first end 22 of the container portion 14 to a location 38 adjacent, in use, the dental substance 25.
  • the groove or grooves may be rectangular, part circular or triangular in cross section as shown in Figures 3a, 3b and 3c respectively.
  • the plunger 16 is substantially cylindrical, and has an external cross sectional shape arranged to engage with the internal surface 20 of the container portion 14 such that, in use, the plunger 16 substantially seals against the inner surface 20 of the container portion 14 between the location 38 and the part-spherical end portion 26.
  • the end of the plunger 16 arranged to be inserted into the container portion 14 may be part spherical in shape.
  • the container 14 is filled with a dental substance 25 from the second end 24 to around the location 38.
  • the plunger 16 is then introduced into the first end 22 of the container portion 14. Whilst the plunger travels between the first end 22 and the location 38, any air located between the plunger 16 and the dental substance 25 is displaced by the plunger, and is exhausted through the air conduits 36. Once the plunger has contacted with the dental substance 25, further pressure applied by a user causes the dental substance to be expelled through the outer end 30 of the nozzle 12.

Landscapes

  • Health & Medical Sciences (AREA)
  • Oral & Maxillofacial Surgery (AREA)
  • Dentistry (AREA)
  • Epidemiology (AREA)
  • Life Sciences & Earth Sciences (AREA)
  • Animal Behavior & Ethology (AREA)
  • General Health & Medical Sciences (AREA)
  • Public Health (AREA)
  • Veterinary Medicine (AREA)
  • Dental Tools And Instruments Or Auxiliary Dental Instruments (AREA)

Abstract

A dental capsule (10) for dispensing a dental substance comprises a container portion (14), a nozzle (12) and a plunger (16). The container portion (14) includes air conduits (36) on an inner surface thereof, allowing air trapped between the plunger (16) and the dental substance to be expelled.

Description

TITLE "A DENTAL CAPSULE"
BRIEF DESCRIPTION OF THE INVENTION The present invention relates to a dental capsule.
SUMMARY OF THE INVENTION
In accordance with one aspect of the present invention there is provided a dental capsule for dispensing a dental substance characterised by comprising a nozzle and a container portion arranged to contain a dental substance, the container portion having an open end arranged to receive a plunger, and wherein the container portion includes at least one air conduit such that, in use, when the plunger is received in the open end of the container portion and moved toward the dental substance, air within the container portion between the plunger and the dental substance is displaced by the plunger and expelled from the container portion through the or each air conduit.
BRIEF DESCRIPTION OF THE DRAWINGS
The present invention will now be described, by way of example, with reference to the accompanying drawings, in which: Figure 1 is a cross sectional view of a dental capsule in accordance with the present invention; Figure 2 is a cut away perspective view of a first end of the dental capsule of Figure 1; Figure 3 a is an end view of the first end of a dental capsule in accordance with the present invention;
Figure 3b is an end view of the first end of an alternative embodiment of a dental capsule in accordance with the present invention; and Figure 3 c is an end view of the first end of a further alternative embodiment of a dental capsule in accordance with the present invention.
DESCRIPTION OF THE INVENTION
Referring to the Figures, there is shown a dental capsule 10 having a nozzle 12, a container portion 14 and a plunger 16.
The container portion 14 is enclosed at a second end 24 thereof by a part spherical end portion 26 and is open at a first end 22. The container portion 14 has an exterior surface 18 which is substantially cylindrical in cross sectional shape from the first end 22 of the container portion 14 to the part spherical end portion 26. A dental substance 25 can thus be stored within the container portion 14 in a region extending from the second end 24 towards the first end 22.
The exterior surface 18 includes a flange portion 28 adjacent the first end 22 of the container portion 14. The flange portion 28 allows the dental capsule 10, in use, to be held within an applicator of known type (not shown). The nozzle 12 is substantially tubular, and extends from the second end 24 of the
container portion 14 in a direction approximately 45° to a longitudinal axis of the container portion 14. The nozzle 14 is substantially circular in cross section, and extends from the part spherical end portion 26 of the container portion 14 to an outer end 30 remote from the container portion 14. The nozzle 14 is of substantially constant external cross section along a length of the nozzle 14 extending from the container portion 14, and includes a dispensing region 32 with a reduced cross sectional dimension adjacent the outer end 30. Preferably the nozzle 14 has an internal diameter less than 0.6mm, and a length greater than 10mm.
The container portion 14 has an inner surface 20 which generally follows the shape of the exterior surface 18, having a substantially cylindrical portion extending from the first end 22 to the part spherical end portion 26. The inner surface 20 of the part spherical end portion 26 of the container portion 14 also includes a substantially planar portion 34 at the second end 24 of the container portion 14. The substantially planar portion 34 is oriented in substantially the same direction as the nozzle 12. Other forms of the invention may include an inner surface 20 which is part spherical at the second end 24, with no planar portion 34. The inner surface 20 of the container portion 14 further includes at least one air conduit 36 in the form of a groove or grooves extending longitudinally from the first end 22 of the container portion 14 to a location 38 adjacent, in use, the dental substance 25. The groove or grooves may be rectangular, part circular or triangular in cross section as shown in Figures 3a, 3b and 3c respectively. The plunger 16 is substantially cylindrical, and has an external cross sectional shape arranged to engage with the internal surface 20 of the container portion 14 such that, in use, the plunger 16 substantially seals against the inner surface 20 of the container portion 14 between the location 38 and the part-spherical end portion 26. The end of the plunger 16 arranged to be inserted into the container portion 14 may be part spherical in shape.
In use, the container 14 is filled with a dental substance 25 from the second end 24 to around the location 38. The plunger 16 is then introduced into the first end 22 of the container portion 14. Whilst the plunger travels between the first end 22 and the location 38, any air located between the plunger 16 and the dental substance 25 is displaced by the plunger, and is exhausted through the air conduits 36. Once the plunger has contacted with the dental substance 25, further pressure applied by a user causes the dental substance to be expelled through the outer end 30 of the nozzle 12.
Modifications and variations as would be apparent to a skilled addressee are deemed to be within the scope of the present invention. In particular, it is to be appreciated that the configuration of the air conduits may be altered without departing from the scope of the present invention.

Claims

1. A dental capsule for dispensing a dental substance characterised by comprising a nozzle and a container portion arranged to contain a dental substance, the container portion having an open end arranged to receive a plunger, and wherein the container portion includes at least one air conduit such that, in use, when the plunger is received in the open end of the container portion and moved toward the dental substance, air within the container portion between the plunger and the dental substance is displaced by the plunger and expelled from the container portion through the or each air conduit.
2. A dental capsule as claimed in claim 1, characterised in that the container portion has an inner surface and the or each air conduit extends from the open end along the inner surface of the container portion.
3. A dental capsule as claimed in claim 2, characterised in that the or each air conduit is a groove within the inner surface.
4. A dental capsule as claimed in claim 3, characterised in that the or each air conduit extends in a longitudinal direction along the dental capsule.
5. A dental capsule as claimed in claim 3 or claim 4, characterised in that the or each groove is substantially rectangular in cross section.
6. A dental capsule as claimed in claim 3 or claim 4, characterised in that the or each groove is part circular in cross section.
7. A dental capsule as claimed in claim 3 or claim 4, characterised in that the or each groove is substantially triangular in cross section.
8. A dental capsule as claimed in any one of claims 2 to 7, characterised in that the dental capsule includes a nozzle extending from the container portion, and the inner surface includes a planar region adjacent the nozzle oriented in substantially the same direction as the nozzle.
9. A dental capsule as claimed in claim 8, characterised in that the nozzle includes a dispensing region at an outer end thereof, the dispensing region being smaller in cross sectional dimension than the remainder of the nozzle.
10. A dental capsule as claimed in any of the preceding claims, characterised in that the length of the nozzle is greater than 10 mm.
11. A dental capsule as claimed in any of the preceding claims, characterised in that the nozzle has an internal diameter of less than 0.6 mm.
PCT/AU2001/001477 2000-11-15 2001-11-14 A dental capsule WO2002039920A1 (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
AU2002223269A AU2002223269A1 (en) 2000-11-15 2001-11-14 A dental capsule

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
AUPR1464A AUPR146400A0 (en) 2000-11-15 2000-11-15 A dental capsule
AUPR1464 2000-11-15

Publications (1)

Publication Number Publication Date
WO2002039920A1 true WO2002039920A1 (en) 2002-05-23

Family

ID=3825505

Family Applications (1)

Application Number Title Priority Date Filing Date
PCT/AU2001/001477 WO2002039920A1 (en) 2000-11-15 2001-11-14 A dental capsule

Country Status (2)

Country Link
AU (1) AUPR146400A0 (en)
WO (1) WO2002039920A1 (en)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP2167169B2 (en) † 2007-06-14 2016-03-09 Sanofi-Aventis Deutschland GmbH Double chamber cartridges with attachment

Citations (7)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3291128A (en) * 1964-01-24 1966-12-13 John G O'neil Hypodermic syringe construction with sealable vent means
CH580962A5 (en) * 1974-08-26 1976-10-29 Kyburz Hans Piston type ampoule closure - with air vent channel on the piston and O-ring or end flange seal
US4852772A (en) * 1987-12-07 1989-08-01 Genesis Industries, Incorporated Dispenser for viscous fluids
EP0248210B1 (en) * 1986-05-02 1991-11-06 Sunstar Kabushiki Kaisha Syringe
DE19700480A1 (en) * 1997-01-09 1998-07-16 Saremco Ag Dental cartridge used for filling teeth
US6213980B1 (en) * 1999-10-26 2001-04-10 Path Fill facilitating unit dose injection cartridge and filling method
US6261094B1 (en) * 2000-04-19 2001-07-17 Centrix, Inc. Dental capsule for placement of ultra-high viscosity dental composite material

Patent Citations (7)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3291128A (en) * 1964-01-24 1966-12-13 John G O'neil Hypodermic syringe construction with sealable vent means
CH580962A5 (en) * 1974-08-26 1976-10-29 Kyburz Hans Piston type ampoule closure - with air vent channel on the piston and O-ring or end flange seal
EP0248210B1 (en) * 1986-05-02 1991-11-06 Sunstar Kabushiki Kaisha Syringe
US4852772A (en) * 1987-12-07 1989-08-01 Genesis Industries, Incorporated Dispenser for viscous fluids
DE19700480A1 (en) * 1997-01-09 1998-07-16 Saremco Ag Dental cartridge used for filling teeth
US6213980B1 (en) * 1999-10-26 2001-04-10 Path Fill facilitating unit dose injection cartridge and filling method
US6261094B1 (en) * 2000-04-19 2001-07-17 Centrix, Inc. Dental capsule for placement of ultra-high viscosity dental composite material

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP2167169B2 (en) † 2007-06-14 2016-03-09 Sanofi-Aventis Deutschland GmbH Double chamber cartridges with attachment

Also Published As

Publication number Publication date
AUPR146400A0 (en) 2000-12-07

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