公开(公告)号：US20230047075A1

公开(公告)日：2023-02-16

申请号：US17902239

申请日：2022-09-02

Applicant: Cochlear Limited

Inventor： Joris Walraevens ,  Patrik Kennes ,  Vicente Osorio ,  Stijn Eeckhoudt ,  Koen Erik Van den Heuvel

IPC: H04R1/08 ,  A61N1/36 ,  A61N1/05 ,  H04R1/02

Abstract: Disclosed examples generally include methods and apparatuses related to microphone units, such as may be found in implantable medical devices (e.g., cochlear implants). Microphone units generally include a microphone element connected to a chamber having a concave floor with the chamber covered by a membrane. Microphone units can be configured to produce an output based on pressure waves (e.g., sound waves) that reach the membrane. In an example, a microphone unit has a pressurized gas within the chamber below the membrane such that, while in a static state, the membrane deflects away from the chamber floor.

公开(公告)号：US11956581B2

公开(公告)日：2024-04-09

申请号：US17902239

申请日：2022-09-02

Applicant: Cochlear Limited

Inventor： Joris Walraevens ,  Patrik Kennes ,  Vicente Osorio ,  Stijn Eeckhoudt ,  Koen Erik Van den Heuvel

IPC: A61N1/36 ,  A61N1/05 ,  H04R1/02 ,  H04R1/08 ,  H04R1/22 ,  H04R25/00 ,  H04R31/00

CPC classification number: H04R1/08 ,  A61N1/0541 ,  A61N1/36038 ,  H04R1/02 ,  H04R1/222 ,  H04R25/405 ,  H04R25/604 ,  H04R25/606 ,  H04R31/003 ,  H04R2201/003 ,  H04R2225/41 ,  H04R2225/67 ,  H04R2410/05

Abstract: Disclosed examples generally include methods and apparatuses related to microphone units, such as may be found in implantable medical devices (e.g., cochlear implants). Microphone units generally include a microphone element connected to a chamber having a concave floor with the chamber covered by a membrane. Microphone units can be configured to produce an output based on pressure waves (e.g., sound waves) that reach the membrane. In an example, a microphone unit has a pressurized gas within the chamber below the membrane such that, while in a static state, the membrane deflects away from the chamber floor.