Sonic dental device

• US RE36,699 E
• Filed: 08/25/1998
• Issued: 05/16/2000
• Est. Priority Date: 12/30/1992
• Status: Expired due to Fees

• Current Assignee: Amden Corporation
• Original Assignee: Ronald K. Murayama
• Inventors: Murayama, Ronald K.
• Primary Examiner(s): Burr, Edgar
• Assistant Examiner(s): COLILLA, DANIEL JAMES
• Application Number:
  US09/139,545
• Time in Patent Office: 630 Days
• Field of Search: 433/118, 433/119, 132/322, 601/2
• US Class Current: 433/118
• CPC Class Codes: A61C 15/047 power-driven
• CPC Class Codes: A61C 17/20 using ultrasonics

Abstract

An electric device which removes supragingival and sub-gingival plaque and undesirable debris from the interproximal surfaces between teeth is described. This device utilizes a combination of sonic energy and dental floss which is secured between two tines, the tines being part of a flexible fork which is removable from a powered handle which contains batteries and an electric motor. The electric motor, which is coupled to an eccentrically mounted disc on an output shaft, revolves at sonic frequencies which in turn generates sonic energy that is transmitted to the flexible fork which holds the floss. The sonic energy is synchronized and in tune with the natural resonance frequencies of the fork thereby stimulating the resonance action of oscillating vertical and/or elliptical movement of the fork which in turn imparts cleaning energy to and enhances the cleaning properties of the floss. The flexible fork may be removed from the handle and replaced with other dental cleaning tools such as a brush, a pick, and/or a tray attachment.

Claims

1. A device for cleaning teeth comprising

a handle containing an eccentric counterweight attached to a motor for rotating the counterweight and producing vibrational energy in frequencies between 2,000 and 20,000 cpm,

a floss-holding member comprising a pair of tines for holding a strand of floss therebetween, the floss-holding member being detachably attached to the handle for allowing the vibrational energy produced by the counterweight to induce a resonance action in the floss-holding member for moving the strand of floss, and

a dental mouth tray member which is attachable to the handle in place of the floss-holding member.

2. The device of claim 1 wherein the frequency of the vibrational energy induces a resonance action in the dental mouth tray member to cause the dental mouth tray member to move.

3. A device for cleaning teeth comprising

a handle containing an eccentric counterweight attached to a motor for rotating the counterweight and producing vibrational energy in frequencies between 2,000 and 20,000 cpm,

a power supply for energizing the motor,

a floss-holding member comprising a pair of tines for holding a strand of floss therebetween, the floss-holding member being detachably attached to the handle for allowing the vibrational energy produced by the motor to be transmitted to the floss-holding member to cause the floss-holding member to move and thereby the strand of floss to move, and

a dental mouth tray member which is attachable to the handle in place of the floss-holding member,

wherein the frequency of the vibrational energy induces a resonance action in the dental mouth tray member to cause the dental mouth tray member to move.

4. A device for cleaning teeth comprising

a handle containing an eccentric counterweight attached to a motor for rotating the counterweight and producing vibrational energy in frequencies between 2,000 and 20,000 cpm, and

a floss-holding member comprising a pair of tines for holding a strand of floss therebetween, the floss-holding member being detachably attached to the handle for allowing the vibrational energy produced by the counterweight to induce a resonance action in the floss-holding member for moving the strand of floss.

5. The device of claim 4 further including a different dental cleaning tool which is attachable to the handle in place of the floss-holding member.

6. The device of claim 5 wherein the different dental cleaning tool comprises a toothbrush member.

7. The device of claim 6 wherein the frequency of the vibrational energy induces a resonance action in the toothbrush member to cause the toothbrush member to move.

8. The device of claim 5 wherein the different dental cleaning tool comprises a toothpick member.

9. The device of claim 8 wherein the frequency of the vibrational energy induces a resonance action in the toothpick member to cause the toothpick member to move.

10. A method of cleaning tooth surfaces comprising the steps of

(a) removably attaching a floss-holding member to a handle containing an eccentric counterweight attached to a motor for rotating the counterweight, (b) attaching dental floss to the floss-holding member, (c) inserting the dental floss between teeth, (d) inducing movement in the floss-holding member through rotating the eccentric counterweight thereby producing vibrational energy in frequencies between 2,000 and 20,000 cpm for inducing resonance action in the floss-holding member for causing the dental floss to move between the teeth, and

(e) attaching a different dental cleaning tool to the handle in place of the floss-holding member.

11. A method of cleaning tooth surfaces comprising the steps of

(a) attaching dental floss to a floss-holding member,

(b) inserting the dental floss between two teeth, and

(c) inducing movement in the floss-holding member through rotating an eccentric counterweight thereby producing vibrational energy in frequencies between 2,000 and 20,000 cpm for inducing resonance action in the floss-holding member which causes the dental floss to move between the two teeth.

12. The method of claim 11 comprising the further steps of

(a) removing the floss holding member,

(b) attaching a toothbrush member, and

(c) inducing movement in the toothbrush member through rotating an eccentric counterweight thereby producing vibrational energy in frequencies between 2,000 and 20,000 cpm for inducing resonance action in the toothbrush member for causing the toothbrush member to move.

13. The method of claim 11 comprising the further steps of

(a) removing the floss holding member,

(b) attaching a toothpick member, and

(c) inducing movement in the toothpick member through rotating an eccentric counterweight thereby producing vibrational energy in frequencies between 2,000 and 20,000 cpm for inducing resonance action in the toothpick member for causing the toothpick member to move.

14. A device for cleaning teeth comprising

a handle containing a motor which rotates an eccentric counterweight thereby producing vibrational energy in frequencies between 2,000 and 20,000 cpm,

a floss-holding member comprising a pair of tines for holding a strand of floss therebetween, the floss-holding member being attached to the handle to allow the vibrational energy produced by the motor to be transmitted to the floss-holding member to cause the floss-holding member to move and thereby the strand of floss to move, the floss-holding member being detachable from the handle, and

a dental mouth tray member is attachable to the handle in place of the floss-holding member,

wherein the frequency of the vibrational energy induces a resonance action in the dental mouth tray member to cause the dental mouth tray member to move. .Iadd.

15. A device for cleaning teeth comprising

a handle containing an eccentric counterweight attached to a motor for rotating the counterweight and producing vibrational energy in frequencies between 8,000 and 20,000 cpm;

and

a dental cleaning member detachably attached to the handle, the dental cleaning member having a material composition, size, shape and mass defining a natural resonance frequency in resonance with the frequencies in the sonic range for allowing the vibrational energy produced by the counterweight to induce a resonance action in the dental cleaning member for moving the dental cleaning member in a reciprocating movement in a plane. .Iaddend..Iadd.16. The device of claim 15, wherein said dental cleaning member comprises a toothbrush member. .Iaddend..Iadd.17. The device of claim 15, wherein said dental cleaning member comprises a dental mouth tray member. .Iaddend..Iadd.18. The device of claim 15, wherein said

16. dental cleaning member comprises a toothpick member. .Iaddend..Iadd.19. The device of claim 15, wherein the dental cleaning member comprises a floss-holding member. .Iaddend..Iadd.20. A device for cleaning teeth comprising

a handle containing an eccentric counterweight attached to a motor for rotating the counterweight and producing vibrational energy in frequencies between 8,000 and 20,000 cpm;

and

a dental cleaning member detachably attached to the handle, the dental cleaning member having a material composition, size, shape and mass defining a natural resonance frequency in resonance with the frequencies in the sonic range for allowing the vibrational energy produced by the counterweight to induce a resonance action in the dental cleaning member for reciprocating the dental cleaning member in a plane. .Iaddend..Iadd.21. The device of claim 20, wherein said dental cleaning member comprises a toothbrush member. .Iaddend..Iadd.22. The device of claim 20, wherein said dental cleaning member comprises a dental mouth tray member. .Iaddend..Iadd.23. The device of claim 20, wherein said

17. dental cleaning member comprises a toothpick member. .Iaddend..Iadd.24. A device for cleaning teeth, comprising:

a handle containing an eccentric counterweight attached to a motor for rotating the counterweight to produce sonic range vibrational energy between 8,000 and 20,000 cpm, and

a dental cleaning member coupled to the handle, the dental cleaning member having a configuration defining a natural resonance frequency in resonance with the sonic range vibrational energy such that the sonic vibrational energy induces a resonance action in the dental cleaning member for moving

18. the dental cleaning member. .Iaddend..Iadd.25. The device of claim 24, wherein the dental cleaning member comprises a toothbrush member. .Iaddend..Iadd.26. The device of claim 24, wherein the dental cleaning member comprises a floss-holding member. .Iaddend..Iadd.27. The device of claim 24, wherein the dental cleaning member is detachable from the

19. handle. .Iaddend..Iadd.28. A device for cleaning teeth, comprising:

a handle containing an eccentric counterweight attached to a motor for rotating the counterweight to produce sonic range vibrational energy between 8,000 and 20,000 cmp, and

a dental cleaning member coupled to the handle, the dental cleaning member having a material composition, size, shape and mass defining a natural resonance frequency tuned to the sonic range vibrational energy such that the sonic range vibrational energy induces a resonance action in the dental cleaning member for reciprocating the dental cleaning member in a plane. .Iaddend..Iadd.29. The device of claim 28, wherein the dental cleaning member comprises a toothbrush member. .Iaddend..Iadd.30. The device of claim 28, wherein the dental cleaning member comprises a floss-holding member. .Iaddend..Iadd.31. The device of claim 28, wherein the dental cleaning member is detachable from the handle. .Iaddend.