Bone conduction hearing aid devices and methods

• US 7,664,277 B2
• Filed: 05/29/2007
• Issued: 02/16/2010
• Est. Priority Date: 05/30/2006
• Status: Active Grant

• Current Assignee: Sonitus Medical, Inc.
• Original Assignee: Sonitus Medical, Inc.
• Inventors: Abolfathi, Amir, Spiridigliozzi, John
• Primary Examiner(s): Chin, Vivian
• Assistant Examiner(s): Saunders, Jr., Joseph
• Application Number:
  US11/754,833
• Publication Number:
  US 20070291972A1
• Time in Patent Office: 994 Days
• Field of Search: 381/151, 381/312, 381/315, 381/322, 381/324, 381/326, 381/328, 381/380, 600/25, 607/56, 607/57
• US Class Current: 381/151
• CPC Class Codes: A61C 8/0093 Features of implants not otherwise provided for
• CPC Class Codes: A61C 8/0098 Immediate loaded implants
• CPC Class Codes: B33Y 80/00 Products made by additive manufacturing
• CPC Class Codes: H04R 1/46 Special adaptations for use as contact microphones, e.g. on musical instrument, on stethoscope throat mountings H04R1/14
• CPC Class Codes: H04R 2225/31 Aspects of the use of accumulators in hearing aids, e.g. rechargeable batteries or fuel cells
• CPC Class Codes: H04R 2225/67 Implantable hearing aids or parts thereof not covered by H04R25/606
• CPC Class Codes: H04R 2420/07 Applications of wireless loudspeakers or wireless microphones
• CPC Class Codes: H04R 2460/01 Hearing devices using active noise cancellation
• CPC Class Codes: H04R 2460/13 Hearing devices using bone conduction transducers
• CPC Class Codes: H04R 25/554 using a wireless connection, e.g. between microphone and amplifier or using Tcoils
• CPC Class Codes: H04R 25/602 of batteries
• CPC Class Codes: H04R 25/604 of acoustic or vibrational transducers
• CPC Class Codes: H04R 25/606 acting directly on the eardrum, the ossicles or the skull, e.g. mastoid, tooth, maxillary or mandibular bone, or mechanically stimulating the cochlea, e.g. at the oval window
• CPC Class Codes: H04R 3/04 for correcting frequency response

Abstract

Methods and apparatus for transmitting vibrations via an electronic and/or transducer assembly through a tooth or teeth are disclosed herein. The assembly may include a bracket which is adhered or affixed onto the tooth or teeth and an electronics and/or transducer assembly which may be removably coupled to the bracket. The electronic and/or transducer assembly may receive incoming sounds either directly or through a receiver to process and amplify the signals and transmit the processed sounds via a vibrating transducer element coupled to the bracket for transmission into the underlying tooth or other bone structure.

Claims

1. An apparatus for transmitting vibrations via at least one tooth to facilitate hearing in a patient, comprising:

a bracket affixed to a surface of the at least one tooth; and

a housing assembly configured to engage more than one side of the at least one tooth without requiring anatomical modification of the at least one tooth,

wherein the housing assembly is removably coupled to the bracket such that an actuatable transducer is placed in vibratory communication with the bracket and wherein the transducer conducts vibrations directly into the surface via the bracket.

2. The apparatus of claim 1 wherein the bracket is affixed to the surface via an adhesive or cement.

3. The apparatus of claim 2 wherein the adhesive or cement is selected from the group consisting of zinc oxide eugenol, zinc phosphate, zinc silico-phosphate, zinc polyacrylate, zinc-polycarboxylate, glass ionomer, resin-based, and silicate-based cements.

4. The apparatus of claim 1 wherein the bracket defines one or more projections configured to securely mate with the housing assembly so as to inhibit or prevent disconnection of the housing assembly when coupled to one another.

5. The apparatus of claim 1 wherein the bracket comprises a rail upon which the housing assembly slides.

6. The apparatus of claim 1 wherein the bracket assembly is integrated with an oral appliance which is configured to be placed upon and conform to the at least one tooth.

7. The apparatus of claim 1 wherein the bracket comprises a magnetic portion which is configured to couple to a complementary magnetic portion contained within the housing assembly.

8. The apparatus of claim 1 wherein the bracket comprises a cylindrical housing configured to receive the housing assembly having a threaded outer surface.

9. The apparatus of claim 1 wherein the bracket comprises a releasable retaining tab configured to engage an opening along the housing assembly.

10. The apparatus of claim 1 wherein the bracket defines an opening configured to receive a protruding stop projecting from the housing assembly.

11. The apparatus of claim 1 wherein the bracket comprises a biasing element configured to urge the housing assembly into a secure engagement via a retaining step.

12. The apparatus of claim 1 wherein the bracket and housing assembly are coupled via a temporary adhesive or cement.

13. The apparatus of claim 1 wherein the housing assembly comprises a processor in communication with the actuatable transducer.

14. The apparatus of claim 13 further comprising a battery contained within the housing assembly.

15. The apparatus of claim 1 wherein the housing assembly comprises an alignment member configured to align the housing relative to the bracket.

16. The apparatus of claim 1 further comprising an alignment tool having at least two members projecting distally, wherein the two members each define an alignment channel for slidingly receiving the housing assembly.

17. The apparatus of claim 1 further comprising at least one additional actuatable transducer in vibratory communication with the surface.

18. The apparatus of claim 17 wherein the at least one additional actuatable transducer is disposed within or upon at least one additional bracket affixed to a surface of an additional tooth.

19. The apparatus of claim 17 wherein each transducer is configured to provide a sound or vibrational queue indicative of a direction in which sound is detected relative to an orientation of a user.

20. A method of transmitting vibrations via at least one tooth, comprising:

affixing a bracket onto a surface of the at least one tooth;

coupling a removable housing assembly onto the bracket, wherein the housing assembly is configured to engage more than one side of the at least one tooth without requiring anatomical modification of the at least one tooth; and

actuating a transducer within the housing assembly which is in vibratory communication with the bracket such that the transducer conducts vibrations directly into the surface via the bracket.

21. The method of claim 20 wherein affixing comprises adhering the bracket onto the surface via an adhesive or cement.

22. The method of claim 21 wherein adhering comprises permanently adhering the bracket onto the surface.

23. The method of claim 20 wherein coupling comprises magnetically coupling the housing assembly onto the bracket.

24. The method of claim 20 wherein coupling comprises sliding the housing assembly upon a rail defined along the bracket.

25. The method of claim 20 wherein coupling comprises screwing the housing assembly into a threaded receiving channel of the bracket.

26. The method of claim 20 wherein coupling further comprises securing the housing assembly to the bracket via a locking tab.

27. The method of claim 20 wherein coupling further comprises securing the housing assembly to the bracket via a stop member protruding from the housing assembly into the bracket.

28. The method of claim 20 wherein coupling further comprises securing the housing assembly to the bracket via a biasing element compressing a retaining step between the housing assembly and the bracket.

29. The method of claim 20 wherein coupling comprises positioning the housing assembly onto the bracket via an alignment tool.

30. The method of claim 20 wherein coupling comprises adhering the housing assembly to the bracket via a temporary adhesive or cement.

31. The method of claim 20 further comprising receiving an electronic signal representative of a received audio signal prior to actuating a transducer.

32. The method of claim 31 wherein receiving further comprises processing the electronic signal via a processor.

33. The method of claim 20 wherein actuating comprises actuating the transducer to correspond to a perceived audio signal.

34. The method of claim 20 further comprising actuating at least one additional transducer in vibratory communication with at least one additional bracket affixed upon an additional tooth.

35. The method of claim 20 further comprising removing the housing assembly from the bracket.