The present subject matter relates generally to hearing assistance devices and in particular to a ball and socket connection for a hearing assistance device.
Hearing assistance devices, such as hearing aids, typically include a housing or shell with internal components such as a signal processor, a microphone and a receiver housed in a receiver case. The housing or shell of a hearing assistance device has a size limitation based on the application. Specifically, devices that include an in-the-ear portion have housings that are constrained by the geometry of the inner ear of the wearer. Constraints for the device housing or shell generally include a relatively small size, sharp bends and a rounded shape.
Receiver cases currently have a cylindrical receiver spout that connects to other components or receptacles of a hearing assistance device. Once engaged, the cylindrical receiver spout does not allow significant movement of the receiver case with respect to the other components, such as a sound tube. Improper fit can cause feedback and it can be difficult to obtain a proper acoustical seal between the receiver case and other components. In addition, connections to industry standard ear canal buds and wax protection devices can be challenging based on these constraints.
Accordingly, there is a need in the art for apparatus and methods to provide improved connections for components of hearing assistance devices.
Disclosed herein, among other things, are apparatus and methods to provide improved connections for components of hearing assistance devices. Various embodiments include an apparatus including a receiver case configured to house a hearing assistance device receiver, the receiver case including a spherical receiver spout having an opening. The apparatus also includes a receptacle housing having a spherical socket adapted to mate with the spherical receiver spout to form a ball and socket connection. An insert within the spherical socket is configured to establish a retained interference fit with the opening of the receiver spout when the connection is formed so as to create an acoustic seal therebetween.
Various embodiments include a method of making a hearing assistance device connector with an acoustical seal. A receiver case is provided to house a hearing assistance device receiver, the receiver case including a spherical receiver spout, the spherical receiver spout including an opening having a radially concave contour. A receptacle housing is provided including a spherical socket adapted to mate with the spherical receiver spout to form a ball and socket connection. A convex insert is provided within the spherical socket, the convex insert configured to establish a retained interference fit with the concave opening of the receiver spout when the connection is formed so as to create an acoustic seal therebetween.
In various embodiments, a hearing assistance device includes a housing having a receiver case and a sound tube within the housing. The receiver case includes a spherical receiver spout, and the sound tube is adapted to mate with the spherical receiver spout to form a ball and socket connection. After the receiver spout is mated with the sound tube, the receiver case is configured to be oriented at a desired angle with respect to the sound tube to conform to an inner surface of the housing, in various embodiments.
This Summary is an overview of some of the teachings of the present application and not intended to be an exclusive or exhaustive treatment of the present subject matter. Further details about the present subject matter are found in the detailed description and appended claims. The scope of the present invention is defined by the appended claims and their legal equivalents.
The following detailed description of the present subject matter refers to subject matter in the accompanying drawings which show, by way of illustration, specific aspects and embodiments in which the present subject matter may be practiced. These embodiments are described in sufficient detail to enable those skilled in the art to practice the present subject matter. References to “an”, “one”, or “various” embodiments in this disclosure are not necessarily to the same embodiment, and such references contemplate more than one embodiment. The following detailed description is demonstrative and not to be taken in a limiting sense. The scope of the present subject matter is defined by the appended claims, along with the full scope of legal equivalents to which such claims are entitled.
The present detailed description will discuss hearing assistance devices using the example of hearing aids. Hearing aids are only one type of hearing assistance device. Other hearing assistance devices include, but are not limited to, those in this document. It is understood that their use in the description is intended to demonstrate the present subject matter, but not in a limited or exclusive or exhaustive sense.
Hearing assistance device receivers in an ear canal may include a receiver encased in either a stock injection molded housing or affixed to a custom cast ear canal impression. Ear buds and or wax protection systems can be applied to the distal end of these housings. In cases where ball and socket designs currently are used there may be insufficiencies in either design or real-estate to incorporate an acoustic seal. The present subject matter uses a ball and socket as a mounting feature to maintain a sealing element in various applications. In various embodiments, the present subject matter is used in custom assembly applications, such as custom fit devices. In various embodiments, the present subject matter is used in standard fit devices. In various embodiments, the present subject matter is used to retain a mounting sleeve that allows the use of replaceable industry standard ear buds and wax protection devices. In various embodiments, the present subject matter provides a means for blind quick connect and disconnect, among other things.
The present subject matter includes embodiments providing a ball and socket coupling for a hearing assistance device with an in-situ acoustic seal and mounting interface. Various embodiments include a method of making a hearing assistance device connector with an acoustical seal. In various embodiments, a receiver case is provided to house a hearing assistance device receiver, the receiver case including a spherical receiver spout, the spherical receiver spout including an opening having a radially concave contour. In various embodiments, a receptacle housing is provided that includes a spherical socket adapted to mate with the spherical receiver spout to form a ball and socket connection. In various embodiments a convex insert is provided within the spherical socket, the convex insert configured to establish a retained interference fit with the concave opening of the receiver spout when the connection is formed so as to create an acoustic seal therebetween. The ball and socket with insert includes a tight acoustic seal, in various embodiments. The convex insert and concave opening afford variations in angular alignment of the ball and socket while maintaining the acoustic seal. In various embodiments, the ball and socket coupling is for quick connection and disconnection inside a single hearing assistance device module (ear mold) or receiver-in-the-canal (RIC) receiver housing. In one embodiment, no wires pass through the connection. The convex insert is bonded within the spherical socket, in an embodiment. In another embodiment, the convex insert is molded within the spherical socket. The portion of the opening including the radially concave contour can be referred to as a lip, in various embodiments. The shape of the lip permits higher gain receivers in custom applications, according to various embodiments.
In various embodiments, a ball receiver spout and a socket receptacle is provided for a custom hearing assistance device with a built in elastomeric seal. This allows for replacement of the cable/receiver assembly with reuse of the custom shell, in various embodiments. In some applications it affords fitting options in hearing assistance device shells that are too small for existing solutions by elimination of unnecessary wall sections and allows greater flexibility in off axis insertions. In standard or non-custom applications, an embodiment includes a stock housing that provides for a onetime assembly to the ball socket. In this configuration, the housing serves as a mounting point for traditional wax protection devices and ear canal buds. In various embodiments, a spout that can accept a wax barrier or wax guard such as a waxceptor can be used with the present subject matter. In other embodiments, a nano-coated spout with built-in wax protection can be used with the present subject matter, such as the built-in wax protection coating disclosed in commonly-owned U.S. patent application Ser. No. 13/404,496, entitled OMNIPHOBIC PERFORATED BARRIER FOR HEARING AID TRANSDUCERS, which is hereby incorporated by reference it its entirety.
In various embodiments, the receptacle housing 322 includes a polymer housing. In various embodiments, the polymer housing reinforces the receiver/spout assembly and provides a biocompatibility barrier. The receptacle housing is configured to include an interface for elastomeric ear buds and/or a wax protection device, in various embodiments. In various embodiments, the convex insert is an elastomeric component adapted to be molded or bonded inside the receptacle housing. In various embodiments, the insert includes a liquid injection molded (LIM) insert. The socket provides a stock snap receptacle that includes the LIM insert to allow replacement of the receiver/cable assembly and reuse of a custom ear mold, in various embodiments. The spherical receiver spout and the spherical socket are configured to provide for connection and disconnection at various degrees of on and off vertical axial alignment, in various embodiments.
The present subject matter provides many benefits, including providing a sealing element to enhance output, controlling port geometry for reliable response shape, and providing a universal quick connector to allow use in custom and stock applications. Further benefits include providing a sealing socket enabling utilization of higher gain receivers while minimizing acoustic leakage. In addition, the utility of the snap design affords quick and easy replacement of components requiring service while retaining the still functioning components. This should minimize the time the patient is without a hearing device.
According to various embodiments, a receiver spout is configured as to enable a quick connect and disconnect at various degrees on and off vertical axial alignment with repeatable reliability. The acoustic opening in the spout is encompassed by a radial concave contour, in various embodiments. This acts as a seal receptacle to allow the use of higher gain receivers while limiting acoustic leakage back into the receiver cavity thereby directing all amplification into the ear canal. In various embodiments, the receptacle housing is manufactured as to allow an elastomeric component to be molded or bonded inside the receptacle housing. The elastomeric component has a convex shape that complements the concave seal feature in the spout that upon insertion of the spout establishes a retained interference thereby creating an acoustic seal element, in various embodiments. The receptacle housing is designed to feature interfaces for industry standard elastomeric buds and wax protection devices, in various embodiments. This housing may or may not feature an elastomeric seal as its purpose is to provide a barrier between the ear canal and the metallic components of the receiver, act as a retainer and receptacle for separate replaceable standard ear buds at a fixed distance so as to ensure a proper and repeatable response from the receiver, and/or act as a retainer and receptacle for separate replaceable wax protection device. The convex insert and concave opening afford variations in range of motion and in angular alignment of the ball and socket while maintaining the acoustic seal.
Modern hearing instruments include a housing or shell with internal components such as a signal processor, a microphone and a receiver housed in a receiver case. The signal processor includes, but is not limited to, a digital signal processor (DSP), a microprocessor, and a microcontroller. Various memory devices including volatile and nonvolatile memory can be used. The housing or shell of a hearing assistance device has a size limitation based on the application. Specifically, devices that include an in-the-ear portion have housings that are constrained by the geometry of the inner ear of the wearer. Constraints for the device housing or shell generally include a relatively small size (miniaturization), sharp bends and a rounded shape. Receiver cases currently have a cylindrical receiver spout that connects to a sound tube within the hearing assistance device housing. Once engaged, the cylindrical receiver spout does not allow significant movement of the receiver case with respect to the sound tube, which prevents a proper fit into the curved volumes of hearing assistance device housings or shells. In addition, improper fit can cause feedback where a receiver case is forced into contact with the curved interior surface of a device housing or shell.
Disclosed herein, among other things, are apparatus and methods to provide improved connections for components of hearing assistance devices. In various embodiments, a hearing assistance device includes a housing having a receiver case and a sound tube within the housing. The receiver case includes a spherical receiver spout, and the sound tube is adapted to mate with the spherical receiver spout to form a ball and socket connection. After the receiver spout is mated with the sound tube, the receiver case is configured to be oriented at a desired angle with respect to the sound tube to conform to an inner surface of the housing, in various embodiments.
The present subject matter provides smaller custom device sizes for in-the-ear (ITE), in-the-canal (ITC), completely-in-the-canal (CIC), or invisible-in-canal (IIC) type hearing devices. In addition, the present subject matter provides smaller standard device sizes for BTE, or receiver-in-the-canal (RIC) type devices. Further, the present subject matter provides smaller device sizes for AMP (personal audio amplifier) deep insertion devices, whether custom or standard.
In various embodiments, the hearing assistance device includes a digital hearing assistance device. The digital hearing assistance device includes a housing, a digital signal processor within the housing, and a receiver case within the housing, in various embodiments. The receiver case includes a spherical receiver spout and includes a hearing assistance device receiver, the receiver configured to be connected to the digital signal processor and further configured to play sound processed by the digital signal processor, in various embodiments. Various embodiments of the digital hearing assistance device further include a microphone and an acoustic feedback canceller within the housing.
In custom applications, the present subject matter is beneficial for, among other things, positioning a receiver case deep in a canal tip of a custom hearing aid shell, where an extremely sharp bend of the sound path is required. This allows other components of the hearing aid to be packaged more efficiently and thus reduces the overall size of the hearing aid. In addition, the present subject matter reduces or eliminates mechanical feed back. In various embodiments, the present subject matter reduces or eliminates the need for tube sealant at the junction of the sound tube and the receiver spout. According to various embodiments, the present subject matter employs a universally-shaped short sound tube. According to an embodiment, the sound tube snaps in to the sound hole of a hearing aid shell, such as an ITE shell. The sound tube is glued in to the sound hole, in an embodiment. Once engaged, the receiver position can be oriented in a variety of angles with respect to the sound tube (and with respect to the sound hole in the shell) to fit the shape of the cavity of the shell canal or inner housing. This minimizes contact of the receiver case with the shell, and thereby minimizes transmission of mechanical vibration which can cause feedback in the device. According to various embodiments, the sound tube includes a cylindrically-shaped tube molded from elastomers for the desired properties of ball-socket retention and transmission of vibration. Other materials can be used for the sound tube without departing from the scope of the disclosure. The present subject matter can be manufactured by modifying the receiver spout design and creating molded elastomer universal sound tubes, in various embodiments.
It is further understood that any hearing assistance device may be used without departing from the scope and the devices depicted in the figures are intended to demonstrate the subject matter, but not in a limited, exhaustive, or exclusive sense. It is also understood that the present subject matter can be used with a device designed for use in the right ear or the left ear or both ears of the wearer.
The present subject matter can be used for a variety of hearing assistance devices, including but not limited to, assistive listening devices, tinnitus masking devices, cochlear implant type heating devices, hearing aids, such as behind-the-ear (BTE), in-the-ear (ITE), in-the-canal (ITC), or completely-in-the-canal (CIC) type hearing aids. It is understood that behind-the-ear type hearing aids may include devices that reside substantially behind the ear or over the ear. Such devices may include hearing aids with receivers associated with the electronics portion of the behind-the-ear device, or hearing aids of the type having receivers in the ear canal of the user, such as receiver-in-the-canal (RIC) or receiver-in-the-ear (RITE) designs. It is understood that other hearing assistance devices not expressly stated herein may fall within the scope of the present subject matter.
This application is intended to cover adaptations or variations of the present subject matter. It is to be understood that the above description is intended to be illustrative, and not restrictive. The scope of the present subject matter should be determined with reference to the appended claims, along with the full scope of legal equivalents to which such claims are entitled.
The present application is a continuation of U.S. patent application Ser. No. 15/974,042, filed on May 8, 2018, now issued as U.S. Pat. No. 10,264,374, which is a continuation of U.S. patent application Ser. No. 14/730,474, filed Jun. 4, 2015, now issued as U.S. Pat. No. 9,980,065, which is a continuation of U.S. patent application Ser. No. 13/408,826, filed on Feb. 29, 2012, now issued as U.S. Pat. No. 9,071,918, which application claims the benefit of U.S. Provisional Application No. 61/454,346, filed Mar. 18, 2011, which applications are hereby incorporated by reference in their entirety.
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Number | Date | Country | |
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20190246224 A1 | Aug 2019 | US |
Number | Date | Country | |
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61454346 | Mar 2011 | US |
Number | Date | Country | |
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Parent | 15974042 | May 2018 | US |
Child | 16384245 | US | |
Parent | 14730474 | Jun 2015 | US |
Child | 15974042 | US | |
Parent | 13408826 | Feb 2012 | US |
Child | 14730474 | US |