Methods and apparatus for transmitting vibrations

• US 8,585,575 B2
• Filed: 05/14/2012
• Issued: 11/19/2013
• Est. Priority Date: 10/02/2007
• Status: Active Grant

• Current Assignee: Sonitus Medical, Inc.
• Original Assignee: Sonitus Medical, Inc.
• Inventors: Abolfathi, Amir A.
• Primary Examiner(s): LACYK, JOHN P
• Application Number:
  US13/471,162
• Publication Number:
  US 20120296154A1
• Time in Patent Office: 554 Days
• Field of Search: 600 23- 25, 381312-331, 181126-137
• US Class Current: 600/25
• CPC Class Codes: A61C 8/0075 Implant heads specially designed for receiving an upper structure if separable from the implant A61C8/005
• CPC Class Codes: H04R 2420/07 Applications of wireless loudspeakers or wireless microphones
• 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 25/604 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 25/75 Electric tinnitus maskers providing an auditory perception

Abstract

Methods and apparatus for transmitting vibrations via an electronic and/or transducer assembly through a dental implant are disclosed herein. The assembly may be attached, adhered, or otherwise embedded into or upon the implant to form a hearing assembly. The electronic and 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 a tooth or other bone structure, such as the maxillary, mandibular, or palatine bone structure.

Claims

1. A system for transmitting vibrations via bone or tissue to facilitate hearing in a patient, comprising:

an implant having an implant head and a threaded portion adapted to be positioned below a gum line;

a housing which is sized for placement within a mouth of the patient;

an actuatable transducer disposed within or upon the housing, wherein the transducer is removably coupled to the implant head such that when connected the transducer is in vibratory communication with the implant head and when removed the transducer is not in communication with the implant head; and

at least one microphone external to the mouth of the patient and in communication with the transducer.

2. The system of claim 1 wherein the at least one microphone is configured to be worn by the patient.

3. The system of claim 2 wherein the at least one microphone has a form selected from the group consisting of a watch, necklace, lapel, phone, and belt-mounted device.

4. The system of claim 1 further comprising a charger for charging the transducer.

5. The system of claim 1 wherein the housing is coupled to the implant head through one of:

an electro-magnetic coupling to the implant head, a mechanical coupling to the implant head, a chemical coupling to the implant head.

6. The system of claim 1 further comprising an electronic assembly disposed within of upon the housing and which is in communication with the transducer.

7. The system of claim 6 wherein the electronic assembly is encapsulated within the housing.

8. The system of claim 6 wherein the electronic assembly further comprises a power supply in electrical communication with the transducer.

9. The system of claim 6 wherein the electronic assembly further comprises a processor in electrical communication with the transducer.

10. The system of claim 6 wherein the electronic assembly further comprises a receiver in wireless communication with an externally located transmitter assembly.

11. The system of claim 1 wherein the actuatable transducer is in vibratory communication with a surface of the implant head via an adhesive for maintaining the transducer in contact with the surface.

12. The system of claim 1 wherein the housing comprises a ball adapted to be seated in an indentation above the implant head.

13. The system of claim 1 wherein the implant head is charged with a first magnetic polarity and the housing is charged with an opposite magnetic polarity.

14. The system of claim 13 further comprising at least one biasing element positioned adjacent to the transducer such that the biasing element maintains the transducer against the implant head via a biasing force.

15. The system of claim 14 wherein the at least one biasing element comprises a spring.

16. The system of claim 1 wherein the housing is inserted into the implant head.

17. The system of claim 16 comprising a U-shaped clip to mount the housing to the implant head.

18. The system of claim 1 wherein the housing is secured to the implant head using a screw.

19. The system of claim 1 further comprising an interface layer between the transducer and the implant head through which vibratory communication is maintained.

20. The system of claim 19 wherein the interface layer comprises a plastic or paste material.