Abstract: An ear-wearable electronic device includes aa shell having a uniquely-shaped outer surface that corresponds uniquely to an ear geometry of a user of the ear-wearable device. The device includes a mounting structure that is formed contiguously with the shell and intersects an inner surface of the shell. The mounting structure includes a mounting surface operable to fixably mount an interchangeable device to the shell. The mounting structure defines a void that extends from the inner surface to the outer surface of the shell. The mounting structure has a reference feature that is positioned relative to the outer surface of the shell such that the interchangeable device is located at a target orientation relative to the outer surface.

Abstract: A method comprises obtaining ear modeling data representing a 3-dimensional (3D) impression of an ear surface of an ear of a patient; determining, based on the ear modeling data, values of landmarks of the ear, wherein the landmarks include ear canal landmarks of an ear canal, and determining the values of the landmarks comprises: predicting an ear aperture plane of an aperture of the ear; determining a plurality of cross-sectional planes that are aligned with the ear aperture plane; for each of the cross-sectional planes: determining an intersection boundary of the cross-sectional plane representing a line of intersection between the cross-sectional plane and the ear canal; and determining a centroid of the intersection boundary of the cross-sectional plane; and determining values of the ear canal landmarks based on the centroids.

Abstract: Various embodiments of a hearing device and a system including such device are disclosed. The device includes an enclosure having a front housing and a rear housing. The enclosure further includes an isolator disposed between the front housing and the rear housing. The isolator includes a body, a first sleeve disposed at the first end of the body, and a second sleeve disposed at the second end of the body. A second end of the front housing is connected to the first sleeve of the isolator and a second end of the rear housing is connected to the second sleeve of the isolator. The hearing device further includes a first sensor disposed in the front housing, a second sensor disposed in the rear housing, and a receiver disposed at least partially within the body of the isolator.

Abstract: A method for manufacturing a hearing instrument includes placing a component support structure at least partially in a bath of a resin liquid, wherein one or more operative components of the hearing instrument are attached to or contained within the component support structure prior to the component support structure being at least partially placed in the bath of the resin liquid. While the component support structure is at least partially in the bath, volumetric 3-dimensional (3D) printing is performed to form a shell of the hearing instrument attached to the component support structure.

Abstract: An ear-wearable electronic device has a shell with an outer surface. A mounting void goes through the outer surface of the shell and exposes an internal volume of the shell. The mounting void is located at an ear-contacting region of the shell. The ear-wearable device includes a photoplethysmography sensor assembly having an optical transmission structure mounted in the mounting void and having a distal end exposed proximate the outer surface. The distal end of the optical transmission structure conforms to the outer surface of the shell at the ear-contacting region. The distal end is in contact with ear tissue of a user of the ear-wearable electronic device during use.

Abstract: An ear-wearable electronic device includes aa shell having a uniquely-shaped outer surface that corresponds uniquely to an ear geometry of a user of the ear-wearable device. The device includes a mounting structure that is formed contiguously with the shell and intersects an inner surface of the shell. The mounting structure includes a mounting surface operable to fixably mount an interchangeable device to the shell. The mounting structure defines a void that extends from the inner surface to the outer surface of the shell. The mounting structure has a reference feature that is positioned relative to the outer surface of the shell such that the interchangeable device is located at a target orientation relative to the outer surface.

Abstract: A method for manufacturing a hearing instrument includes placing a component support structure at least partially in a bath of a resin liquid, wherein one or more operative components of the hearing instrument are attached to or contained within the component support structure prior to the component support structure being at least partially placed in the bath of the resin liquid. While the component support structure is at least partially in the bath, volumetric 3-dimensional (3D) printing is performed to form a shell of the hearing instrument attached to the component support structure.

Abstract: Various embodiments of a hearing assistance device and a method of forming such device are disclosed. The device includes a housing having a shell and a frame disposed at least partially within the shell. An inner surface of the shell and at least a portion of the frame define a void. Further, an indentation hardness value of the frame is greater than an indentation hardness value of the shell. The hearing assistance device also includes hearing assistance components that are disposed at least partially within the void.

Abstract: Various embodiments of a hearing assistance device and a method of forming such device are disclosed. The device includes a housing having a shell and a frame disposed at least partially within the shell. An inner surface of the shell and at least a portion of the frame define a void. Further, an indentation hardness value of the frame is greater than an indentation hardness value of the shell. The hearing assistance device also includes hearing assistance components that are disposed at least partially within the void.

Abstract: Various embodiments of a hearing assistance device and a method of forming such device are disclosed. The device includes a housing having a shell and a frame disposed at least partially within the shell. An inner surface of the shell and at least a portion of the frame define a void. Further, an indentation hardness value of the frame is greater than an indentation hardness value of the shell. The hearing assistance device also includes hearing assistance components that are disposed at least partially within the void.