Abstract: A piezoelectric sensor and amplifier for use with an auditory aid device are disclosed. The piezoelectric sensor includes a top sensor and a bottom sensor disposed on opposite surfaces of a flex printed circuit board. The top and bottom sensors are made of a piezoelectric material, such as PVDF. Further, the piezoelectric sensor is adapted to be implanted into a subject's ear, where the piezoelectric sensor is cantilevered with the free, or distal end, touching the umbo. The proximal end is held in place by a support that is affixed to the ear. Additionally, the piezoelectric sensor is shaped so that the width of the distal end is less than the width at the proximal end. Further, the piezoelectric sensor generates differential signals, which are then amplified using a differential amplifier circuit.

Abstract: To account for the anatomical variability of the round window, and its surrounding bony structure, and ensure the safety of the delicate round window membrane (RWM) and structures in the cochlea closely adjacent to the RWM, the disclosure provides devices and methods that safely and effectively couple the motion of a variety of actuators to the RWM.

Abstract: This disclosure features elongated prosthetic devices that can be used to repair, e.g., resurface or occlude, a defect of a semicircular canal, e.g., a superior semicircular canal dehiscence, as well as methods of making and using these devices. For example, the devices can be made using three-dimensional (3D) printing.

Abstract: To account for the anatomical variability of the round window, and its surrounding bony structure, and ensure the safety of the delicate round window membrane (RWM) and structures in the cochlea closely adjacent to the RWM, the disclosure provides devices and methods that safely and effectively couple the motion of a variety of actuators to the RWM.

Abstract: This disclosure features elongated prosthetic devices that can be used to repair, e.g., resurface or occlude, a defect of a semicircular canal, e.g., a superior semicircular canal dehiscence, as wellmethods of making and using these devices. For example, the devices can be made using three-dimensional (3D) printing.

Abstract: This disclosure describes techniques and systems to aid hearing of subjects using implantable systems, e.g., fully implantable systems, which include a piezoelectric sensor to generate electric signals from detected acoustic vibrations of middle ear ossicles. The systems can include, for example, middle ear implants and cochlear implants.