Electric dental flosser

• US 5,279,314 A
• Filed: 12/23/1991
• Issued: 01/18/1994
• Est. Priority Date: 12/23/1991
• Status: Expired due to Fees

• Current Assignee: Louis, D.D.S. Poulos
• Original Assignee: Advanced Dental Research Corporation
• Inventors: Hofheins, Leonard L., Thornock, Del M., Poulos, Louis
• Primary Examiner(s): Mancene, Gene
• Assistant Examiner(s): CHERICHETTI, CINDY
• Application Number:
  US07/812,725
• Time in Patent Office: 757 Days
• Field of Search: 132/322, 132/323, 132/324, 132/325, 132/329
• US Class Current: 132/322
• CPC Class Codes: A61C 15/047 power-driven

Abstract

A light electric dental flosser with a rechargeable battery compartment includes a motor casing, interchangeably individualized head units, and disposable plastic floss tips that snap mount within the hinged end of the head unit. The floss tips exhibit bidirectional flossing motion provided from a motion translation system including an eccentric cam, a yoke, and an output shaft with a cam follower mechanism that follows a generally Z-shaped tracking surface with a vertical track component and a horizontal track component enabled by the yoke to complete the resulting "Z" movement. The floss tips have a molded-in filament and are molded from a shock absorbing substance which absorbs the vertical component of the "Z" shaped motion upon the application of pressure to the filament thereby outputting horizontal motion until the filament passes through the contact area between two teeth. In an automatic mode, an infrared sensor in the head activates the motor when the line of sight between infrared sensors is broken by the filament approaching a contact area between two teeth.

Claims

1. A powered dental flossing device comprising:

a housing;

a power source;

motion translation means operatively connected to the power source for producing a bidirectional pattern of motion having horizontal and vertical components relative to a vertical side surface of the teeth;

cleaning tip means operatively connected to the motion translation means and having filament means that outputs the bidirectional pattern of motion; and

means for producing only the horizontal component at the filament means in a first phase in response to pressure above a predetermined amount on the filament at a contact area between two teeth and for providing both the horizontal and vertical component at the filament means in a second flossing phase in an interproximal area between said two teeth.

2. The flossing device of claim 1 further comprising at least one head means attached to the housing means and housing the motion translation means.

3. The flossing device of claim 2 wherein the cleaning tip means is disposable.

4. The flossing device of claim 3 wherein the head means defines means for exposing the cleaning tip means for removal therefrom.

5. The flossing device of claim 2 further comprising sensing means for detecting the filament means in proximity to the teeth.

6. The flossing device of claim 5 further comprising a switch means operatively connected to the sensing means for signalling activation of the power source.

7. The flossing device of claim 6 wherein the sensing means comprises infrared sensors for detecting the filament means in proximity to the teeth.

8. The flossing device of claim 6 wherein the sensing means comprises stress sensor means for detecting contact between the filament means and the teeth.

9. The flossing device of claim 6 wherein the sensing means comprises electric switch means for detecting contact between the filament means and the teeth.

10. The flossing device of claim 6 further comprising illumination means operatively connected to the switch means for illuminating the teeth.

11. The flossing device of claim 2 wherein the means for producing only the horizontal component is a shock-absorbing material for absorbing the vertical component while the filament means is in a contact area between two teeth.

12. The flossing device of claim 11 wherein the cleaning tip means is made from the shock-absorbing material.

13. The flossing device of claim 11 wherein a shaft of the motion translating means is made from the shock-absorbing material.

14. The flossing device of claim 2 wherein the means for producing only the horizontal component is a mechanical clutch for disengaging production of the vertical component by the motion translation means while the filament means is in a contact area between two teeth.

15. The flossing device of claim 2 wherein the means for producing only the horizontal component is at least one spring means for dampening the vertical component while the filament means is in a contact area between two teeth.

16. The flossing device of claim 2 wherein the means for producing only the horizontal component is a sensor for deactivating the vertical component while the filament means is in a contact area between two teeth.

17. The flossing device of claim 1 wherein the power source comprises a motor energized by a battery having a recharging means.

18. The flossing device of claim 17 wherein the motor operates at an RPM and a torque sufficient to overcome a contact friction of the teeth.

19. The flossing device of claim 2 wherein the motion translation means comprises a cam means connected to a yoke means, the yoke means further connected to an output shaft, the output shaft having cam follower means for following a tracking surface.

20. The flossing device of claim 19 wherein the cam means provides the horizontal component of the bidirectional pattern of motion, and the tracking surface provides the vertical component.

21. The flossing device of claim 2 wherein the at least one head means comprises a plurality of interchangeable, individualized, removable heads.

22. A powered dental flossing device comprising:

a housing means;

a power source within the housing means;

motion translation means attached to the power source for outputting a bidirectional pattern of motion having a vertical component relative to a vertical side surface of the teeth and a horizontal component;

at least one removable head means housing the motion translation means;

tip means attached to the motion translation means and having filament means outputting the bidirectional pattern of motion; and

means for dampening the vertical component in response to pressure above a predetermined amount on the filament means in a contact area between two teeth.

23. The flossing device of claim 22 wherein the tip means is disposable.

24. The flossing device of claim 22 further comprising sensing means for detecting the filament means in proximity to the teeth.

25. The flossing device of claim 24 further comprising a switch means operatively connected to the sensing means for signalling the battery to activate the power source.

26. The flossing device of claim 24 wherein the sensing means comprises infrared sensors for detecting the filament means in proximity to the teeth.

27. The flossing device of claim 24 wherein the sensing means comprises stress sensor means for detecting contact between the filament means and the teeth.

28. The flossing device of claim 24 wherein the sensing means comprises electric switch means for detecting contact between the filament means and the teeth.

29. The flossing device of claim 24 further comprising light means operatively connected to the switch means for illuminating the teeth.

30. The flossing device of claim 22 wherein the power source comprises a motor energized by a battery.

31. The flossing device of claim 22 wherein the motion translation means comprises a cam means defining first attachment means for connection at a first end to the power source and second attachment means at a second end for connection to a yoke means, the yoke means further connected to an output shaft, the output shaft having cam follower means for following a tracking surface.

32. The flossing device of claim 31 wherein the cam means provides a horizontal component of the bidirectional movement, and the tracking surface includes a vertical track section for providing the vertical component of the bidirectional movement.

33. A dental flossing unit for operative engagement by a low powered device having an output shaft, the flossing unit comprising:

a housing;

motion translation means in the housing and operatively connected to the output shaft for outputting a bidirectional pattern of motion having horizontal and vertical components;

cleaning tip means operatively connected to the motion translation means and defining filament means; and

means for producing only the horizontal component in response to pressure above a predetermined amount on the filament means encountered at a contact area between two teeth and for producing both the horizontal and vertical components while the filament means is in an interproximal area between said two teeth.

34. The flossing device of claim 33 further comprising sensing means for detecting the filament means in proximity to the teeth.

35. The flossing device of claim 34 further comprising a switch means operatively connected to the sensing means for signalling activation of the powered device.

36. The flossing device of claim 34 wherein the sensing means comprises infrared sensors for detecting the filament means in proximity to the teeth.

37. The flossing device of claim 34 wherein the sensing means comprises stress sensor means for detecting contact between the filament means and the teeth.

38. The flossing device of claim 34 wherein the sensing means comprises electric switch means for detecting contact between the filament means and the teeth.

39. The flossing device of claim 34 further comprising light means operatively connected to the switch means for illuminating the teeth.

40. The flossing device of claim 33 wherein the motion translation means comprises a cam means defining first attachment means for connection at a first end to the shaft of the powered device and second attachment means at a second end for connection to a yoke means, the yoke means further connected to an output shaft, the output shaft having cam follower means for following a tracking surface.

41. The flossing device of claim 40 wherein the cam means provides the horizontal component of the bidirectional movement, and the tracking surface includes a vertical track section for providing the vertical component of the bidirectional movement.

42. The flossing device of claim 33 wherein the means for producing only the horizontal component is a shock-absorbing material for absorbing the vertical component when the filament means is in a contact area between two teeth.

43. The flossing device of claim 42 wherein the cleaning tip means is made from the shock-absorbing material.

44. The flossing device of claim 42 wherein a shaft of the motion translating means is made from the shock-absorbing material.

45. The flossing device of claim 33 wherein the means for producing only the horizontal component is a mechanical clutch for disengaging production of the vertical component by the motion translation means while the filament means is in a contact area between two teeth.

46. The flossing device of claim 33 wherein the means for producing only the horizontal component is at least one spring means for dampening the vertical component while the filament means is in a contact area between two teeth.

47. The flossing device of claim 33 wherein the means for producing only the horizontal component is a sensor for deactivating the vertical component while the filament means is in a contact area between two teeth.

48. The flossing device of claim 33 wherein the powered device operates at an RPM and a torque sufficient to overcome a high contact friction produced by substantial contact between tow teeth.

49. The flossing device of claim 33 wherein the head means defines means for exposing the cleaning tip means for removal therefrom.

50. A floss tip made from a resilient plastic material, the floss tip for attachment to a dental flossing device having a tip mounting means, the floss tip comprising:

a unitary body having a first end and a second end;

an attachment means defined in the first end for attaching the floss tip to the tip mounting means;

a pair of tines defined in the second end, each tine having at least one notch defined therein; and

a floss filament means spanning the pair of tines, the at least one notch in conjunction with the resilient plastic material absorbs a vertical powered motion component of the dental flossing device when sufficient pressure is applied to the floss filament means.

51. The floss tip of claim 50 wherein the tip is removable and disposable.