摘要:
A mechanical stimulator for evoking a hearing percept by directly generating waves of fluid motion of fluid in a recipient's scala tympani. The stimulator comprises a sound processing unit configured to process a received sound signal; and an implantable stimulation arrangement, comprising: an actuator configured to receive electrical signals representing the processed sound signal and configured to vibrate in response to the electrical signals, a stapes prosthesis having first and second ends, the first end having a surface configured to be positioned abutting the round window in the recipient's cochlea, and wherein the first end surface is substantially orthogonal to a longitudinal axis extending through the actuator, an elongate rod extending longitudinally from the actuator connecting the actuator to the stapes prosthesis such that vibration of the actuator results in waves of fluid motion in a recipient's scala tympani that evoke a hearing percept of the received sound signal.
摘要:
A system for rehabilitating the hearing of a recipient. The system comprises: an elongate hollow access device having a symmetrical shape about a longitudinal axis through the center of the device, and comprising first and second ends each having apertures therein which have their geometric centers positioned at the longitudinal axis, wherein the access device is configured to be at least partially positioned in the mastoid bone of the recipient, such that the first end is positioned adjacent the surface of the mastoid bone, and the second end is inserted into the cochlea, and a first membrane disposed across the aperture at the first end of the device configured to vibrate in response to an acoustic sound signal presented there to, and wherein the access device has a cross-sectional diameter along its length that provides a desired amplification of the received sound signal.
摘要:
A bone conduction device, comprising: a sound input element configured to receive an acoustic sound signal; an electronics module configured generate an electrical signal representing said acoustic sound signal; and a transducer, comprising a mass configured to move in a rotational direction, configured to generate a vibrational force in a tangential direction with respect to a recipient's bone.
摘要:
An elongated implantable electrode assembly includes a set of electrode pads arranged in a pre-selected pattern, and a plurality of longitudinal wires, each wire being connected to at least one pad. The electrode assembly is formed by first depositing the pads on a sacrificial layer, adding wires to the pad, embedding the pads and wires in a carrier and then removing the sacrificial layer. These steps can be performed using photolithographic techniques.
摘要:
Methods of forming a feedthrough using a mold that defines a cavity when closed and includes one or more cores configured to move in and out of the mold cavity. The methods include injecting non-electrically conductive powder injection molding (PIM) feedstock into the mold cavity to form an insulative body around a portion of each of the cores disposed in the mold cavity, removing each of the cores from the insulative body to form one or more core cavities in the insulative body, injecting electrically conductive PIM feedstock into the core cavities to form one or more conductors in the core cavities, respectively, and sintering the insulative body and the conductors to form the feedthrough.
摘要:
Methods of forming feedthroughs for hermetically sealed housings using powder injection molding, including positioning a plurality of separate electrically conductive elements in a mold, injecting non-electrically conductive powder injection molding (PIM) feedstock into the mold to form a plurality of insulative bodies around the conductive elements, sintering the insulative bodies to form the plurality of feedthroughs physically connected to one another via the conductive elements; and severing the conductive elements between neighboring insulative bodies.
摘要:
A stimulating medical device comprising a stimulating assembly implantable proximate to nerve cells of a recipient having at least one agent delivery port and a plurality of electrical contacts; an electrical stimulation controller configured to generate electrical stimulation signals for application to a first population of the nerve cells via one or more of the plurality of electrical contacts; a pharmaceutical agent source configured to provide a pharmaceutical agent to the at least one delivery port for application to a second population of the nerve cells; and a pharmaceutical agent controller configured to control one or more of the pharmaceutical agent source and the at least one delivery port to cause selective application of the pharmaceutical agent to the second population of nerve cells.
摘要:
A stimulating medical device comprising a stimulating assembly implantable proximate to nerve cells of a recipient having at least one agent delivery port and a plurality of electrical contacts; an electrical stimulation controller configured to generate electrical stimulation signals for application to a first population of the nerve cells via one or more of the plurality of electrical contacts; a pharmaceutical agent source configured to provide a pharmaceutical agent to the at least one delivery port for application to a second population of the nerve cells; and a pharmaceutical agent controller configured to control one or more of the pharmaceutical agent source and the at least one delivery port to cause selective application of the pharmaceutical agent to the second population of nerve cells.
摘要:
A bone conduction device, comprising: a sound input element configured to receive an acoustic sound signal; an electronics module configured generate an electrical signal representing said acoustic sound signal; and a transducer, comprising a mass configured to move in a rotational direction, configured to generate a vibrational force in a tangential direction with respect to a recipient's bone.
摘要:
An implantable tissue-stimulating device comprising a carrier member having a plurality of electrodes mounted thereon, and at least one signal transmitting wire extending through at least a portion of the carrier member and adapted to transmit signals through the carrier member to and/or from the electrodes. The number of wires within the carrier member is less than the number of electrodes mounted thereon.