Pre-dosed applicator and applicator system

• US 6,929,475 B1
• Filed: 10/04/2002
• Issued: 08/16/2005
• Est. Priority Date: 10/04/2002
• Status: Expired due to Fees

• Current Assignee: Centrix, Inc.
• Original Assignee: Centrix, Inc.
• Inventors: Dragan, William B.
• Primary Examiner(s): BUMGARNER, MELBA N
• Application Number:
  US10/264,921
• Time in Patent Office: 1,047 Days
• Field of Search: 433/80, 433/89, 433/90, 604/1, 604/2, 604/218, 401/119
• US Class Current: 433/89
• CPC Class Codes: A61C 19/063 Medicament applicators for teeth or gums, e.g. treatment with fluorides
• CPC Class Codes: A61C 5/60 Devices specially adapted for pressing or mixing capping or filling materials, e.g. amalgam presses
• CPC Class Codes: A61C 5/66 Capsules for filling material
• CPC Class Codes: A61C 5/68 Mixing dental material components for immediate application to a site to be restored, e.g. a tooth cavity

Abstract

An applicator for applying a material such as a chemical or a medicament. A material to be applied is placed on an absorbent portion of the applicator, such as a flocked end, sponge or foam, brush, or other equivalent absorbent substance. After drying, the material is in an inactive stable state on the applicator. When desired, the inactive stable material is activated by water or other solvent. In another embodiment, a package containing an applicator end having a pre-dosed dry inactive stable material is combined with a second material so that a two-part or multi-component material may be easily dispensed and activated. The package containing the first and second component may be a tray, a capsule, or a tip end syringe. The pre-dosed single use applicator may be used to apply a variety of materials, such as chemicals or medicaments, to the surface or site desired without complicated and messy mixing or cross-contamination.

Claims

1. A pre-dosed application system for dispensing material with multiple components comprising:

a cannula having a bore and a discharge end;

an absorbent substance applicator portion pre-dosed with a first dry inactive material attached to said cannula adjacent the discharge end; and

a container coupled to the bore of said cannula opposite the discharge end, said container containing a second activating material, whereby when the first dry inactive material is combined with the second activating material a desired material is formed.

2. A pre-dosed application system for dispensing material with multiple components as in claim 1 wherein:

said container comprises a capsule attached to said cannula.

3. A pre-dosed application system for dispensing material with multiple components as in claim 1 wherein:

the absorbent substance applicator portion is selected from the group consisting of flock, foam, bristles, and cotton.

4. A pre-dosed application system for dispensing material with multiple components as in claim 1 wherein:

said container comprises a syringe.

5. A pre-dosed application system for dispensing material with multiple components as in claim 4 wherein:

the absorbent substance applicator portion is selected from the group consisting of flock, foam, bristles, and cotton.

6. A pre-dosed application system for dispensing material with multiple components comprising:

a capsule having an open rear end and a discharge end;

a piston placed within the open rear end;

a cannula having an applicator end, said cannula attached to the discharge end of said capsule;

an absorbent substance placed on the applicator end of said cannula;

a first dry inactive material contained within said absorbent substance; and

a second activating material placed within said capsule,

whereby when the first dry inactive material is combined with the second activating material upon advancing said piston a desired material is formed.

7. A pre-dosed application system for dispensing material with multiple components as in claim 6 wherein:

the absorbent substance is selected from the group consisting of flock, foam, bristles, and cotton.

8. A pre-dosed application system for dispensing material with multiple components as in claim 6 wherein:

said cannula comprises metal.

9. A pre-dosed application system for dispensing material with multiple components as in claim 6 further comprising:

means, formed on said capsule, for attaching said capsule to a dispenser.