Oral care implement with cavitation system

• US 8,747,005 B2
• Filed: 06/04/2008
• Issued: 06/10/2014
• Est. Priority Date: 06/04/2008
• Status: Active Grant

• Current Assignee: Colgate-Palmolive Company
• Original Assignee: Colgate-Palmolive Company
• Inventors: Kemp, James Herbert, Williams, Malcolm
• Primary Examiner(s): Walczak, David
• Assistant Examiner(s): OLIVER, BRADLEY S
• Application Number:
  US12/159,279
• Publication Number:
  US 20100275394A1
• Time in Patent Office: 2,197 Days
• Field of Search: 15/221, 151/671, 401/132, 401/268
• US Class Current: 401/132
• CPC Class Codes: A46B 13/023 with means for inducing vibration to the bristles
• CPC Class Codes: A46B 15/0016 with enhancing means
• CPC Class Codes: A46B 2200/1066 Toothbrush for cleaning the teeth or dentures A61C17/16 takes precedence; bristles arrangements for toothbrushes A46B9/04
• CPC Class Codes: A61C 17/20 using ultrasonics
• CPC Class Codes: A61C 17/3481 Vibrating brush body, e.g. by using eccentric weights
• CPC Class Codes: A61K 8/11 Encapsulated compositions
• CPC Class Codes: A61K 8/22 Peroxides; Oxygen; Ozone
• CPC Class Codes: A61K 8/347 Phenols
• CPC Class Codes: A61Q 11/00 Preparations for care of the teeth, of the oral cavity or of dentures; Dentifrices, e.g. toothpastes; Mouth rinses

Abstract

An oral care implement generates cavitation within the oral cavity. One or more cavitation cleaning elements may be located in the head area of the oral care implement. The cavitation cleaning element vibrates at a frequency that produces cavitation of fluids within the oral cavity. The oral care implement may include an elastomeric cavitation cleaning element. A cleaning element may be configured to vibratory release an oral care substance from a container; and a body for gripping the implement.

Claims

1. An oral care system comprising:

an oral care implement comprising;

a handle;

a head attached to the handle and defining an oral care region, the oral care region further comprising;

a plurality of stationary tooth cleaning elements;

at least one vibratory cavitation cleaning element operably connected to a motion-producing device that vibrates the vibratory cavitation cleaning element at a predetermined breaking frequency; and

an oral care substance comprising at least one rupturable capsule containing an oral care active agent, the capsule being formed with frangible thin walls and configured to rupture at the predetermined breaking frequency; and

wherein the capsule ruptures to release the active agent when the vibratory cavitation cleaning element vibrates at the predetermined breaking frequency.

2. The oral care system of claim 1, wherein the predetermined breaking frequency is selected to further cause the vibratory cavitation cleaning element to interact with the oral care substance and fluid in the oral care region to produce an imploding bubble matrix that loosens foreign matter from a user'"'"'s teeth.

3. The oral care system of claim 2, wherein the vibratory cavitation cleaning, element is disposed in the center of and spaced inward from arcuate stationary cleaning elements forming an interior space, the arcuate stationary cleaning elements defining a nozzle that produces a flow of a bubble matrix containing the active agent outwards from the nozzle.

4. The oral care system of claim 3, wherein the arcuate stationary cleaning elements are formed from either elastomeric wall segments or tightly packed bristle tufts.

5. The oral care system of claim 3, wherein the arcuate stationary cleaning elements have gaps formed therebetween to provide lateral three-dimensional flow of the bubble matrix outwards from the nozzle to other portions of the oral care region.

6. The oral care 1, stem of claim 1, wherein the rupturable capsule is formed of a material selected from the group consisting of gelative, lactose, and zeolite.

7. The oral care system of claim 1, wherein the active agent is selected from the group consisting of antibacterial agents, whitening agents, anti-sensitivity agents, anti-inflammatory agents, anti-attachment agents, plaque indicator agents, flavorants, sensates, breath freshening agents, gum health agents and colorants.

8. The oral care system of claim 1, wherein the active agent is contained in a vehicle disposed in the capsule that is selected from the group consisting of an aqueous solution, a gel, or a paste.

9. The oral care system of claim 1 wherein the vibratory cavitation cleaning element is at least partially surrounded by the stationary tooth cleaning elements.

10. The oral care system of claim 1 further comprising a plurality of the rupturable capsules.