Convertibility of a bone conduction device

Patent metadata

Field	Value
Publication number	US-11546708-B2
Application number	US-202017101229-A
Country	US
Kind code	B2
Filing date	Nov 23, 2020
Priority date	May 24, 2011
Publication date	Jan 3, 2023
Grant date	Jan 3, 2023

Abstract

An external component of a bone conduction device, including a vibrator and a platform configured to transfer vibrations from the vibrator to skin of the recipient, wherein the vibrator and platform are configured to quick connect and quick disconnect to and from, respectively, one another.

First claim

What is claimed is:

1. A device, comprising:
a vibratory component; and
a vibration isolator, wherein
the device is an implantable component of a transcutaneous bone conduction device, and at least one of:
(i) the vibration isolator is made of silicone;
(ii) the vibration isolator is exposed to body fluids when the device is implanted in a human; or
(iii) the device is configured so that, with the aid of the vibration isolator, a total amount of vibrational energy transferred into bone is concentrated over a smaller area relative to that which would be the cased in the absence of the vibration isolator.

2. The device of claim 1 , wherein: the device is configured so that the vibration isolator increases the vibrational energy imparted to a given location of a skull bone relative to that which would be the case in the absence of the vibration isolator.

3. The device of claim 1 , wherein:
the vibration isolator is made of a material that resists bonding with bone.

4. The device of claim 1 , wherein:
the device includes an implantable receiver coil in an enclosure separate from the housing; and
the device includes an electrical lead assembly extending from the enclosure, wherein the enclosure is spaced away from the housing and the electrical lead assembly extends from the enclosure towards the housing.

5. The device of claim 1 , wherein the vibration isolator is exposed to body fluids when the device is implanted in a human.

6. The device of claim 1 , wherein the device is configured so that, with the aid of the vibration isolator, a total amount of vibrational energy transferred into bone is concentrated over a smaller area relative to that which would be the cased in the absence of the vibration isolator.

7. The device of claim 1 , the vibration isolator is made of silicone.

8. A device, comprising:
a vibration generator, wherein
the device is an implantable component of a transcutaneous bone conduction device configured to be mounted to bone of a human,
the device includes silicone, and
the silicone prevents formation of a bond in a path between the vibration generator and bone so that transmission of vibration from the vibration generator to the bone is reduced relative to that which would be the case in the absence of the silicone.

9. The device of claim 8 , wherein:
the device includes a securement screw configured to secure the device relative to bone of the human; and
the securement screw extends through a hole in the silicone.

10. The device of claim 8 , wherein:
a securement screw configured to secure the device relative to bone of the human extends through a hole in the silicone.

11. The device of claim 8 , wherein:
the device includes a housing containing the vibration generator; and
the silicone is directly against an outer surface of the housing.

12. The device of claim 11 , wherein:
with respect to a side of the housing facing the silicone, the area of the side is greater than an area of the silicone in contact with the outer surface.

13. The device of claim 11 , wherein:
the vibration generator is an actuator.

14. The device of claim 8 , wherein:
the device includes a housing in which the vibration generator is located;
the device includes an implantable receiver coil in an enclosure at a location spaced away from the housing; and
with respect to structure of the device, the structure establishes a solid path extending from the housing to the enclosure that bypasses the silicone.

15. A method, comprising: capturing sound external to a human recipient; transcutaneously transmitting a signal based on the captured sound to an implantable hearing prosthesis implanted in the human recipient; and generating vibrations, based on the transcutaneously transmitted signal, inside a housing of an implantable hearing prosthesis implanted in a human recipient, wherein the vibrations travel from the cite of generation of the vibrations to bone of the recipient and then to an inner ear of the human to evoke a bone conduction hearing percept, and of paths through structure of the implantable hearing prosthesis from the cite of generation to bone for the vibrations to travel, some but not all of the paths purposely attenuate vibrational energy.

16. The method of claim 15 , further comprising:
transcutaneously receiving, via an inductance link, the transcutaneously transmitted signal from with an implanted receiver coil located in an enclosure implanted in the recipient, wherein
the implantable hearing prosthesis includes a vibration isolator located against the housing, and
with respect to direction normal to an overall tangent surface of the bone and away from the bone, a topmost portion of the enclosure is located at a higher height from the bone than a topmost portion of the vibration isolator.

17. The method of claim 15 , wherein:
the implantable hearing prosthesis includes a vibration isolator located against the housing, and
with respect to direction normal to an overall tangent surface of the bone and away from the bone, the entire housing is at a different level than the entire vibration isolator that is in contact with the housing.

18. The method of claim 15 , wherein:
the implantable hearing prosthesis is held to the recipient via a bone screw; and
the implantable hearing prosthesis includes a silicone material that purposely attenuates the vibrations, which silicone material is interposed between the bone screw and the housing.

19. The method of claim 15 , wherein:
the implantable hearing prosthesis is held to the recipient via a bone screw;
the implantable hearing prosthesis includes a silicone material that purposely attenuates the vibrations, which silicone material is interposed between the bone screw and the housing; and
the housing is not in direct contact with the bone screw.

20. The method of claim 15 , wherein:
the attenuation of the vibrational energy is achieved via silicon establishing a vibration isolator.

Assignees

• Morris David Nathan
• Andersson Marcus
• Bjoern Goeran
• Asnes Kristian Gunnar
• Van Himbeeck Carl
• Cochlear Ltd

Inventors

• Morris David Nathan
• Andersson Marcus
• Björn Göran
• Asnes Kristian Gunnar
• Van Himbeeck Carl

Classifications

• H04R2225/67

  Implantable hearing aids or parts thereof not covered by H04R25/606 · CPC title

• H04R11/00

  Transducers of moving-armature or moving-core type (acoustic diaphragm of magnetisable material directly coacting with electromagnet H04R13/00) · CPC title

• H04R25/606 Primary

  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 title

• H04R2460/13

  Hearing devices using bone conduction transducers · CPC title