摘要:
A transducer mounting system including a retention apparatus to provide an efficient detachable interconnection between a pivotable member and the mounting system. According. to one aspect, the retention apparatus is configured to travel along a predetermined path between an unlocked position and unlocked position to secure a transducer in a desired orientation relative to an auditory component. According to this aspect, the retention apparatus may include a compressible member to frictionally capture and positionally fix the pivotable member relative to the mounting system.
摘要:
An implantable hearing aid system that includes a transducer housing that is rotatable relative to a transducer mounting apparatus to orient the transducer for interfacing with an auditory component. According to one aspect of the invention, during rotation, a s center of rotation of the transducer housing remains positionally fixed. In this regard, the transducer includes an actuator member that is advanceable relative to the transducer housing to interface with the auditory component, subsequent to orientation of the transducer housing.
摘要:
Apparatus and methods are provided for maintaining a desired centered relationship between a vibratory actuator of an implantable hearing aid transducer and an auditory component post-implantation. In certain embodiments, at least two guide members may extend beyond a distal end of a vibratory actuator for positioning on opposing sides of an auditory component. The guide arms may be employed to restrict post-implantation auditory component movement, and additionally or alternatively, to apply a spring-loading force against an auditory component to reposition and thereby center such auditory component in the event of post-implantation auditory component movement. In certain embodiments, a distal end may be provided on a vibratory actuator, wherein the distal end has a plurality of differently-shaped concave surfaces. A selected one of the different concave surfaces may be positioned for contact engagement with an auditory component to optimize surface engagement. In one embodiment, a contact surface may be rotatably and pivotably disposed at the distal end of a vibratory actuator to facilitate positioning of the contact surface at an optimal orientation relative to an auditory component.
摘要:
An implanted microphone is provided that has reduced sensitivity to vibration and attendant acceleration forces. In this regard, the microphone differentiates between the desirable and undesirable components of a transcutaneously received signal. More specifically, the present invention utilizes an output that is indicative of acceleration forces acting on the implanted microphone (e.g., an acceleration signal) to counteract and/or cancel the effects of acceleration induced pressures in an output signal of a microphone diaphragm. This may be done in a variety of ways, including but not limited to, pneumatically, mechanically, electrical analog, or digitally, or combinations thereof. In one arrangement, the generated output may be filtered to match the an acceleration response of the output signal of the microphone diaphragm such that upon removal of the motion signal from the microphone output, the remaining signal is an acoustic signal.
摘要:
A system for reducing the vibration sensitivity of an implantable microphone without an equal or greater reduction in sound sensitivity. The system reduces non-ambient vibrations by placing at least one compliant member into the path of transmission for tissue-borne vibration, but not into the path for ambient sound-induced vibration. More particularly, a compliant member is interposed along the path between a source of non-ambient vibration and an implanted microphone. In one aspect, a compliant base member is disposed between an implanted microphone and an implant wearer's skull. In another aspect, a microphone is compliantly suspended relative to an implant housing using a support membrane. In either aspect, the compliant member (i.e., base member and/or membrane) and the supported member (i.e., housing and/or microphone) define a supported system having a natural or resonant frequency. This natural frequency may be set to a value to advantageously isolate the microphone against transmitted vibration.
摘要:
An implantable hearing aid transducer interface disposable between an implantable transducer and a mounting apparatus and having at least a portion that is displaceable in response to a predeterminable range of transducer movement. According to one aspect of the invention, the predeterminable range of transducer movement includes movement in response to a physiological movement of an auditory component that results in pressure on the implantable transducer. In this case, the compliant interface permits adaptive movement of the implantable transducer in response to the pressure to maintain a desired interface between the implantable transducer and an auditory component. According to another aspect, the predeterminable range of transducer movement may be transducer vibration resulting from an acoustic stimulation of an auditory component by the implantable transducer. In this case, the compliant interface reduces the transmission of transducer vibration over a feedback path to a microphone of a hearing aid.
摘要:
An implantable hearing aid transducer apparatus provides a simplified approach for interface with a middle ear component. The transducer includes a transducer housing, an actuator for middle ear coupling, and a driver having a magnet or coil interconnected to the actuator to induce movement in response to driver signals. In one feature, the actuator may be advanceable through an aperture of the housing independent from operation of the driver. In another feature, a portion of the transducer may be rotatable. In another feature, a retention apparatus may function to selectively secure a rotatable portion of the housing in a selected position. In an additional feature, a seal may be disposed around a driver component and connected to the actuator.
摘要:
An implantable hearing aid transducer interface disposable between an implantable transducer and a mounting apparatus and having at least a portion that is displaceable in response to a predeterminable range of transducer movement. According to one aspect of the invention, the predeterminable range of transducer movement includes movement in response to a physiological movement of an auditory component that results in pressure on the implantable transducer. In this case, the compliant interface permits adaptive movement of the implantable transducer in response to the pressure to maintain a desired interface between the implantable transducer and an auditory component. According to another aspect, the predeterminable range of transducer movement may be transducer vibration resulting from an acoustic stimulation of an auditory component by the implantable transducer. In this case, the compliant interface reduces the transmission of transducer vibration over a feedback path to a microphone of a hearing aid.