Implantable transducer for hearing aids and process for tuning the frequency response of one such transducer

An implantable, electromagnetic hearing aid transducer, comprising:

• a static transducer part including,
• a transducer housing hermetically sealed on all sides and
• a ring coil arrangement fixedly mounted in the transducer housing;
• a dynamic part, adapted to be coupled to a body part of an implant wearer, including,
• at least one connecting element forming a movable, mechanical connection relative to the static transducer part, and
• a permanent magnet arrangement which interacts with the ring, coil arrangement to vibrate in the direction of an axis of the ring coil arrangement,
• wherein the at least one connecting element is a multifunction element having at least one of the functions of forming at least part of a support for the dynamic part and part of the hermetically sealed transducer housing and further having mechanical properties selected for achieving a specifically set frequency response for the implantable transducer, and
• wherein part of the support of the permanent magnet arrangement is a perforated flexible membrane located between the static transducer part and the dynamic part of the implantable transducer.

An implantable, electromagnetic hearing aid transducer, comprising:

• a static transducer part including,
• a transducer housing hermetically sealed on all sides, and
• a ring coil arrangement fixedly mounted in the transducer housing;
• a dynamic part, adapted to be coupled to a body part of an implant wearer, including,
• at least one connecting element forming a movable, mechanical connection relative to the static transducer part, and
• a permanent magnet arrangement which interacts with the ring coil arrangement to vibrate in the direction of an axis of the ring coil arrangement,
• wherein the at least one connecting element is a multifunctional element having at least one of the functions of forming at least part of a support for the dynamic part and part of the hermetically sealed transducer housing and further having mechanical properties selected for achieving a specifically set frequency response for the implantable transducer, and
• wherein the permanent magnet arrangement is mounted on a rod which is supported to be axially adjustable at two, spaced apart locations of the transducer housing by connecting elements.

An implantable, electromagnetic hearing aid transducer, comprising:

• a static transducer part including,
• a transducer housing hermetically sealed on all sides, and
• a ring coil arrangement fixedly mounted in the transducer housing;
• a dynamic part, adapted to be coupled to a body part of an implant wearer, including,
• at least one connecting element forming a movable, mechanical connection relative to the static transducer part, and
• a permanent magnet arrangement which is accommodated in its own, hermetically sealed, biocompatible housing and which interacts with the ring coil arrangement to vibrate in the direction of an axis of the ring coil arrangement,
• wherein the at least one connecting element is a multifunctional element having at least one of the functions of forming at least part of a support for the dynamic part and part of the hermetically sealed transducer housing and further having mechanical properties selected for achieving a specifically set frequency response for the implantable transducer.

An implantable, electromagnetic hearing aid transducer, comprising:

• a static transducer part including,
• a transducer housing hermetically sealed on all sides, and
• a ring coil arrangement fixedly mounted in the transducer housing;
• a dynamic part, adapted to be coupled to a body part of an implant wearer, including,
• at least one connecting element forming a movable, mechanical connection relative to the static transducer part,
• a permanent magnet arrangement which interacts with the ring coil arrangement to vibrate in the direction of an axis of the ring coil arrangement,
• a rod on which the permanent magnet arrangement is mounted, and
• at least one attenuation element in the form of a plug of viscous material which interacts with the dynamic part of the implantable transducer,
• wherein the at least one connecting element is a multifunctional element having at least one of the functions of forming at least part of a support for the dynamic part and part of the hermetically sealed transducer housing and further having mechanical properties selected for achieving a specifically set frequency response for the implantable transducer, and
• wherein the rod penetrates the plug of viscous material.