Sealing retainer for extended wear hearing devices
First Claim
1. A multi seal system for retaining an extended wear hearing device within a bony portion of an ear canal, the system comprising:
- at least a first seal and a second seal, at least one of the seals including a curved shell having a shell wall and defining an apex portion, an opening at the apex portion, a cavity for retention of a hearing device component, and a longitudinal axis, the shell wall having an inwardly facing interior surface and an outwardly facing exterior surface and being formed at least in part from a resilient material having sound attenuating properties, and the inwardly facing interior surface of the shell wall having a longitudinally extending scalloped shape configured to distribute compressive forces applied to a shell perimeter.
0 Assignments
0 Petitions
Accused Products
Abstract
An embodiment provides a seal for retaining a hearing device within the ear canal comprising a curved shell having an opening at a shell apex portion. The shell defines a cavity for retention of a device component. An interior surface of a shell wall has a scalloped shape configured to distribute compressive forces applied to the shell perimeter such that when the shell is positioned in the canal, the shell wall conforms to the shape of the canal to maintain an acoustical seal between a shell exterior surface and the canal walls. The scalloped shape can be configured to produce a substantially constant amount of inward deformation of a shell wall independent of a force application point on a shell perimeter. The shell can include a coating to retain the seal in the canal and/or to promote asparagine growth into the coating to fastenly retain the seal in the canal.
97 Citations
24 Claims
-
1. A multi seal system for retaining an extended wear hearing device within a bony portion of an ear canal, the system comprising:
at least a first seal and a second seal, at least one of the seals including a curved shell having a shell wall and defining an apex portion, an opening at the apex portion, a cavity for retention of a hearing device component, and a longitudinal axis, the shell wall having an inwardly facing interior surface and an outwardly facing exterior surface and being formed at least in part from a resilient material having sound attenuating properties, and the inwardly facing interior surface of the shell wall having a longitudinally extending scalloped shape configured to distribute compressive forces applied to a shell perimeter. - View Dependent Claims (2, 3, 4, 5, 6, 7, 8, 9)
-
10. A system for retaining a hearing device within an ear canal, the system comprising:
a first seal and a second seal, the first seal including a curved shell having a shell wall formed at least in part from a resilient material having sound attenuating properties, the shell wall defining an apex portion, an opening at the apex portion, an outer surface that is configured to abut the ear canal, and an interior surface that defines a cavity for a first portion of the hearing device, the shell wall interior surface having a plurality of indentations that extend into the shell wall toward the outer surface such that each indentation defines an open end and a close end and the closed end is closer to the outer surface than the open end. - View Dependent Claims (11, 12, 13, 14, 15, 16, 17, 18, 19, 20, 21, 22, 23, 24)
Specification