Hearing aid transducer support

• US 5,836,863 A
• Filed: 08/07/1996
• Issued: 11/17/1998
• Est. Priority Date: 08/07/1996
• Status: Expired due to Fees

• Current Assignee: Saint Croix Medical, Inc., St Croix Medical Incorporated
• Original Assignee: St Croix Medical Incorporated
• Inventors: Kroll, Kai, Bushek, Donald J.
• Primary Examiner(s): Jastrzab, Jeffrey R.
• Assistant Examiner(s): Ruddy, David M.
• Application Number:
  US08/695,099
• Time in Patent Office: 832 Days
• Field of Search: 600/25, 600/136, 600/137, 600/55, 600/56, 381/68.1-69, 607/136, 607/137, 607/55, 607/56
• US Class Current: 600/25
• CPC Class Codes: A61F 2/18 Internal ear or nose parts, e.g. ear-drums implants for middle ear ventilation or drainage A61F11/202
• CPC Class Codes: A61F 2002/183 Ear parts
• 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

Abstract

A support for input and output transducers of a hearing aid is implanted in the middle ear. The support, which is attached to the mastoid bone, can be a single component or comprise two adjustable components. In one embodiment, an arm extends from the proximal end of the support towards an access hole created behind the outer ear, where the arm is attached for further stability. In another embodiment, the arm extends outside the access hole, where it is mounted subcutaneously to the mastoid bone with a mechanical fastener. The support provides positional adjustability, stability, and is invisible externally.

Claims

1. A support system for coupling at least two transducer to at least two auditory elements within a middle ear, the support system comprising:

a support member;

a mechanical-to-electrical first transducer mounted to a first mounting portion of the support member and proportioned for coupling to a first auditory element in the middle ear; and

an electrical-to-mechanical second transducer mounted to a second mounting portion of the support member, which is fixably attached to the first mounting portion of the support member, and the second transducer proportioned for coupling to a second auditory element in the middle ear, said support member including at least one pair of mutually alignable slotted opening portions for maintaining said first and second transducers at a spacing to conform to anatomical requirements of a patient.

2. The support system of claim 1, in which the support member comprises a single component.

3. The support system of claim 1, in which the support member comprises first and second components.

4. The support system of claim 3, in which the first and second components are adjustably coupled to each other with a mechanical fastener.

5. The support system of claim 4, in which the mechanical fastener comprises a captured, self-tapping bone screw.

6. The support system of claim 4, in which each of the first and second components comprises at least one slotted opening, and a first slotted opening in the first component is mutually-aligned with at least a portion of a second slotted opening in the second component, and the mechanical fastener is adapted for extending through the mutually-aligned slotted openings in the first and second components and the mechanical fastener is proportioned for affixation to a mastoid portion of a temporal bone, such that the first and second components are adjustably coupled to each other.

7. The support system of claim 6, in which the adjustable coupling of the first and second components permits slidable positioning of the first component with respect to the second component.

8. The support system of claim 6, in which the adjustable coupling of the first and second components permits radial positioning of the first component with respect to at least the mechanical fastener.

9. The support system of claim 4, in which the first and second components are adjustably coupled to each other by a pair of slotted openings in each of the first and second components, and a first mechanical fastener extends through the slotted opening in the first component and through the second component, and a second mechanical fastener extends through the slotted opening in the second component and through the first component.

10. The support system of claim 9, in which the adjustable coupling of the first and second components allows for slidable positioning of the first component with respect to the second component.

11. The support system of claim 9, in which at least one of the first and second mechanical fasteners extends outwardly from the support system such that it is adapted to be coupled to at least a mastoid portion of a temporal bone.

12. The support system of claim 1, in which the support member further comprises an arm for adding stability to the support.

13. The support system of claim 12, further comprising at least one fastener proportioned for affixing the arm to at least a mastoid portion of a temporal bone.

14. The support system of claim 12, further comprising at least one lip extending radially from the arm for adding stability to the support.

15. The support system of claim 14, further comprising at least one fastener adapted for affixing the lip to at least a mastoid portion of a temporal bone.

16. The support system of claim 1, in which at least one of the first and second transducers is an input transducer for receiving mechanical vibrations from at least one of the auditory elements and converting the received mechanical vibrations to electrical signals.

17. The support system of claim 1, in which at least one of the first and second transducers is an output transducer for receiving electrical signals and converting the received electrical signals to mechanical vibrations capable of being coupled to at least one of the auditory elements.

30. The implantable hearing aid system of claim 1 in which the first transducer comprises a microphone.

18. An implantable hearing aid system, the system comprising:

an electronics unit;

a support member,

a first transducer mounted to a first mounting portion of the support member, the first transducer proportioned for coupling to a first auditory element in the middle ear, and the first transducer electrically-coupled to the electronics unit; and

a second transducer mounted to a second mounting portion of the support member, which is fixably attached to the first mounting portion of the support member, the second transducer proportioned for coupling to a second auditory element in the middle ear, the second transducer electrically-coupled to the electronics unit, said support member including at least one universal connector adjacent to at least one of the mounting portions for adjusting the position of the respective transducer with respect to the support.

31. The implantable hearing aid system of claim 18 in which the first transducer comprises a microphone.

19. A support system for mounting at least two transducers to at least two auditory elements within a middle ear, the support system comprising:

a support member including first and second components;

a mechanical fastener adjustably coupling the first and second components;

a first transducer mounted to a first mounting portion of the support member and proportioned for coupling to a first auditory element in the middle ear;

a second transducer mounted to a second mounting portion of the support member and the second transducer proportioned for coupling to a second auditory element in the middle ear; and

wherein each of the first and second components comprises at least one slotted opening, and a first slotted opening in the first component is mutually-aligned with at least a portion of a second slotted opening in the second component, and the mechanical fastener extends through the mutually-aligned slotted openings in the first and second components and the mechanical fastener is proportioned for affixation to a mastoid portion of a temporal bone, such that the first and second components are adjustably coupled to each other.

20. The support system of claim 19, in which the adjustable coupling of the first and second components permits slidable positioning of the first component with respect to the second component.

21. The support system of claim 19, in which the adjustable coupling of the first and second components permits radial positioning of the first component with respect to at least the mechanical fastener.

22. A support system for mounting at least two transducers to at least two auditory elements within a middle ear, the support system comprising:

a support member including first and second components;

a mechanical fastener adjustably coupling the first and second components;

a first transducer mounted to a first mounting portion of the support member and proportioned for coupling to a first auditory element in the middle ear;

a second transducer mounted to a second mounting portion of the support member and the second transducer proportioned for coupling to a second auditory element in the middle ear; and

wherein the first and second components are adjustably coupled to each other by a pair of slotted openings in each of the first and second components, and a first mechanical fastener extends through a slotted opening in the first component and through the second component, and a second mechanical fastener extends through a slotted opening in the second component and through the first component.

23. The support system of claim 22, in which the adjustable coupling of the first and second components allows for slidable positioning of the first component with respect to the second component.

24. The support system of claim 22, in which at least one of the first and second mechanical fasteners extends outwardly from the support system such that it is adapted to coupling to at least a mastoid portion of a temporal bone.

25. A support system for coupling a transducer to an auditory element within a middle ear, the support system comprising:

a support member,

a mechanical-to-electrical first transducer, proportioned for coupling to a first auditory element in the middle ear;

an electrical-to-mechanical second transducer, proportioned for coupling to a second auditory element in the middle ear; and

a universal connector, coupling one of said first transducer or said second transducer to the support member, for adjusting the position of the first transducer or the second transducer with respect to the support member.

26. The support system of claim 25, wherein the universal connector includes a ball-and-socket joint.

27. The support system of claim 25, wherein the support member includes a slotted opening.

28. The support system of claim 27, wherein the support member further comprises a mechanical fastener that is proportioned for extending through the slotted opening in the support member.

29. The support system of claim 25, further comprising an electronics unit.

32. The implantable hearing aid system of claim 25 in which the first transducer comprises a microphone.

33. A support system for coupling at least two transducers to a support member positioned between two auditory elements within a middle ear, the support system comprising:

a support member;

a mechanical-to-electrical first transducer mounted to a first mounting portion of the support member and proportioned for receiving mechanical vibrations from a first auditory element in the middle ear and converting the mechanical vibration to electrical signals;

an electrical-to-mechanical second transducer mounted to a second mounting portion of the support member, which is fixably attached to the first mounting portion of the support member, and the second transducer proportioned for coupling to a second auditory element in the middle ear; and

said support member including at least one universal connector adjacent to at least one of the mounting portions for adjusting the position of the respective transducer with respect to the support member.

34. The implantable hearing aid system of claim 33 in which the first transducer comprises a microphone.