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WO2025046357A1 - Dispositifs et procédés de détection d'humidité - Google Patents

Dispositifs et procédés de détection d'humidité Download PDF

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Publication number
WO2025046357A1
WO2025046357A1 PCT/IB2024/057715 IB2024057715W WO2025046357A1 WO 2025046357 A1 WO2025046357 A1 WO 2025046357A1 IB 2024057715 W IB2024057715 W IB 2024057715W WO 2025046357 A1 WO2025046357 A1 WO 2025046357A1
Authority
WO
WIPO (PCT)
Prior art keywords
processor
contact
moisture
housing
hearing device
Prior art date
Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
Pending
Application number
PCT/IB2024/057715
Other languages
English (en)
Inventor
Sören NILSSON
Clas Johansson
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
Cochlear Ltd
Original Assignee
Cochlear Ltd
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Application filed by Cochlear Ltd filed Critical Cochlear Ltd
Publication of WO2025046357A1 publication Critical patent/WO2025046357A1/fr
Pending legal-status Critical Current
Anticipated expiration legal-status Critical

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Classifications

    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04R—LOUDSPEAKERS, MICROPHONES, GRAMOPHONE PICK-UPS OR LIKE ACOUSTIC ELECTROMECHANICAL TRANSDUCERS; DEAF-AID SETS; PUBLIC ADDRESS SYSTEMS
    • H04R25/00—Deaf-aid sets, i.e. electro-acoustic or electro-mechanical hearing aids; Electric tinnitus maskers providing an auditory perception
    • H04R25/45—Prevention of acoustic reaction, i.e. acoustic oscillatory feedback
    • H04R25/453—Prevention of acoustic reaction, i.e. acoustic oscillatory feedback electronically
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04R—LOUDSPEAKERS, MICROPHONES, GRAMOPHONE PICK-UPS OR LIKE ACOUSTIC ELECTROMECHANICAL TRANSDUCERS; DEAF-AID SETS; PUBLIC ADDRESS SYSTEMS
    • H04R2225/00—Details of deaf aids covered by H04R25/00, not provided for in any of its subgroups
    • H04R2225/61—Aspects relating to mechanical or electronic switches or control elements, e.g. functioning
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04R—LOUDSPEAKERS, MICROPHONES, GRAMOPHONE PICK-UPS OR LIKE ACOUSTIC ELECTROMECHANICAL TRANSDUCERS; DEAF-AID SETS; PUBLIC ADDRESS SYSTEMS
    • H04R2225/00—Details of deaf aids covered by H04R25/00, not provided for in any of its subgroups
    • H04R2225/67—Implantable hearing aids or parts thereof not covered by H04R25/606
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04R—LOUDSPEAKERS, MICROPHONES, GRAMOPHONE PICK-UPS OR LIKE ACOUSTIC ELECTROMECHANICAL TRANSDUCERS; DEAF-AID SETS; PUBLIC ADDRESS SYSTEMS
    • H04R2460/00—Details of hearing devices, i.e. of ear- or headphones covered by H04R1/10 or H04R5/033 but not provided for in any of their subgroups, or of hearing aids covered by H04R25/00 but not provided for in any of its subgroups
    • H04R2460/13—Hearing devices using bone conduction transducers
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04R—LOUDSPEAKERS, MICROPHONES, GRAMOPHONE PICK-UPS OR LIKE ACOUSTIC ELECTROMECHANICAL TRANSDUCERS; DEAF-AID SETS; PUBLIC ADDRESS SYSTEMS
    • H04R25/00—Deaf-aid sets, i.e. electro-acoustic or electro-mechanical hearing aids; Electric tinnitus maskers providing an auditory perception
    • H04R25/30—Monitoring or testing of hearing aids, e.g. functioning, settings, battery power
    • H04R25/305—Self-monitoring or self-testing
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04R—LOUDSPEAKERS, MICROPHONES, GRAMOPHONE PICK-UPS OR LIKE ACOUSTIC ELECTROMECHANICAL TRANSDUCERS; DEAF-AID SETS; PUBLIC ADDRESS SYSTEMS
    • H04R25/00—Deaf-aid sets, i.e. electro-acoustic or electro-mechanical hearing aids; Electric tinnitus maskers providing an auditory perception
    • H04R25/35—Deaf-aid sets, i.e. electro-acoustic or electro-mechanical hearing aids; Electric tinnitus maskers providing an auditory perception using translation techniques
    • H04R25/353—Frequency, e.g. frequency shift or compression

Definitions

  • the present disclosure relates to moisture sensing devices and methods.
  • Medical devices have provided a wide range of therapeutic benefits to recipients over recent decades.
  • Medical devices can include internal or implantable components/devices, external or wearable components/devices, or combinations thereof (e.g., a device having an external component communicating with an implantable component).
  • Medical devices such as traditional hearing aids, partially or fully-implantable hearing prostheses (e.g., bone conduction devices, mechanical stimulators, cochlear implants, etc.), pacemakers, defibrillators, functional electrical stimulation devices, and other medical devices, have been successful in performing lifesaving and/or lifestyle enhancement functions and/or recipient monitoring for a number of years.
  • a hearing device comprises a moisture sensor and at least first and second contacts coupled to the moisture sensor. Each of the first contact and the second contact is exposed outside of the hearing device.
  • the moisture sensor senses when an attribute between the first contact and the second contact is indicative of moisture.
  • a method comprises generating a measurement using a first contact and a second contact in a hearing device; and adapting a processor in the hearing device to an environment based on the measurement being indicative of moisture.
  • a non-transitory computer readable storage medium comprises computer readable instructions stored thereon for causing a processor in a medical device to measure an impedance between a first contact and a second contact, wherein the first contact and the second contact are exposed to an environment outside a housing of the medical device; and detect moisture outside the housing based on the impedance measured between the first contact and the second contact.
  • an electronic device comprises a housing, a sound input component, and a processor configured to measure impedance between conductors that are exposed outside the housing.
  • the processor is further configured to adjust input from the sound input component in response to determining that the impedance between the conductors is indicative of moisture.
  • Figure 1 is a diagram that illustrates portions of a typical person's ear and a perspective view of a percutaneous bone conduction device positioned behind an outer ear of a recipient.
  • Figure 2 is a functional block diagram of one example of a bone conduction device.
  • Figure 3 is a diagram that depicts an exemplary embodiment of a transcutaneous bone conduction device that includes an external device and an implantable component.
  • Figure 4 is a diagram that depicts an exemplary embodiment of a transcutaneous bone conduction device that includes an external device and an implantable component.
  • Figure 5A is a diagram that illustrates an example of an electronic device that includes a moisture sensor.
  • Figure 5B is a diagram that illustrates an example of an electronic device that includes a moisture sensor and three external conductive contacts.
  • Figure 6 is a diagram that illustrates an example of an electronic device that includes a housing and a processor positioned inside the housing.
  • the techniques presented herein are primarily described herein with reference to an illustrative medical device, namely a bone conduction device. However, it is to be appreciated that the techniques presented herein may also be used with a variety of other devices that provide a wide range of benefits to recipients, patients, healthcare providers, relatives of recipients, or other users of the devices. As examples, the techniques presented herein can be used in or with consumer electronics, Internet-of-Things (loT) devices, wireless devices, audio equipment, sound processing devices, computing systems (e.g., servers in data centers), networking devices, and various types of software systems, such as databases, machine learning and artificial intelligence systems, etc.
  • LoT Internet-of-Things
  • the techniques presented herein may be used in or with medical devices such as cochlear implants and other hearing prostheses, including acoustic hearing aids, bone conduction devices, middle ear auditory prostheses, direct acoustic stimulators, other electrically stimulating auditory prostheses (e.g., auditory brain stimulators), etc.
  • the techniques presented herein may also be used in or with vestibular devices (e.g., vestibular implants), visual devices (i.e., bionic eyes), sensors, pacemakers, drug delivery systems, defibrillators, functional electrical stimulation devices, catheters, seizure devices (e.g., devices for monitoring and/or treating epileptic events), sleep apnea devices, electroporation, etc.
  • the techniques presented herein may be used in or with air purifiers or air sensors (e.g., automatically adjust depending on environment), hospital beds, identification (ID) badges/bands, or other hospital equipment or instruments.
  • ID identification
  • a hearing device can deliver sound signals to a user in any form, including in the form of acoustical stimulation, mechanical stimulation, electrical stimulation, etc., and/or can operate to suppress all or some sound signals.
  • a hearing device can be a device for use by a hearing-impaired person (e.g., hearing aids, middle ear auditory prostheses, bone conduction devices, direct acoustic stimulators, electro-acoustic hearing prostheses, auditory brainstem stimulators, bimodal hearing prostheses, bilateral hearing prostheses, dedicated tinnitus therapy devices, tinnitus therapy device systems, combinations or variations thereof, etc.), a device for use by a person with normal hearing (e.g., consumer devices that provide audio streaming, consumer headphones, earphones, and other listening devices), a hearing protection device, etc.
  • a hearing-impaired person e.g., hearing aids, middle ear auditory prostheses, bone conduction devices, direct acoustic stimulators, electro-acoustic hearing prostheses, auditory brainstem stimulators, bimodal hearing prostheses, bilateral hearing prostheses, dedicated tinnitus therapy devices, tinnitus therapy device systems, combinations or
  • any teaching herein with respect to a sensory prosthesis corresponds to a disclosure of utilizing those teachings in/with a hearing implant and in/with a retinal implant, unless otherwise specified, providing the art enables such.
  • any teachings herein corresponds to a disclosure of utilizing those teachings with a cochlear implant, a bone conduction device (active and passive transcutaneous bone conduction devices, and percutaneous bone conduction devices) and a middle ear implant, providing that the art enables such, unless otherwise noted.
  • any teaching herein with respect to a specific sensory prosthesis corresponds to a disclosure of utilizing those teachings in/with any of the aforementioned hearing prostheses, and visa-versa. Corollary to this is at least some teachings detailed herein can be implemented in somatosensory implants and/or chemosensory implants. Accordingly, any teaching herein with respect to a sensory prosthesis corresponds to a disclosure of utilizing those teachings with/in a somatosensory implant and/or a chemosensory implant.
  • any disclosure herein with respect to a hearing prosthesis corresponds to a disclosure of another embodiment of utilizing the associated teachings with respect to any of the other devices or prostheses noted herein, whether a species of a hearing prosthesis, or a species of a sensory prosthesis, such as a retinal prosthesis.
  • any disclosure herein with respect to evoking a hearing percept corresponds to a disclosure of evoking other types of neural percepts in other embodiments, such as a visual/sight percept, a tactile percept, a smell precept or a taste percept, unless otherwise indicated and/or unless the art does not enable such.
  • Any disclosure herein of a device, system and/or method that is used to or results in ultimate stimulation of the auditory nerve corresponds to a disclosure of an analogous stimulation of the optic nerve utilizing analogous components, methods, and/or systems.
  • FIG. 1 is a diagram that illustrates portions of a typical person's ear.
  • the ear shown in FIG. 1 includes an outer ear 101, a middle ear 102, and an inner ear 103.
  • the outer ear 101 includes an auricle 105 and an ear canal 106.
  • An acoustic pressure or sound wave 107 is collected by auricle 105 and channeled into and through ear canal 106.
  • a tympanic membrane 104 Disposed across the distal end of ear canal 106 is a tympanic membrane 104 which vibrates in response to sound wave 107. This vibration is coupled to oval window or fenestra ovalis 110 through the bones of the middle ear 102.
  • the bones of the middle ear 102 include the malleus 112, the incus 113, and the stapes 114, collectively referred to as the ossicles.
  • the ossicles are positioned in the middle ear cavity 111 and serve to filter and amplify the sound wave 107, causing oval window 110 to articulate (vibrate) in response to the vibration of tympanic membrane 104.
  • This vibration of the oval window 110 sets up waves of fluid motion of the perilymph within cochlea 139.
  • Such fluid motion activates tiny hair cells (not shown) inside of cochlea 139. Activation of the hair cells causes appropriate nerve impulses to be generated and transferred through the spiral ganglion cells (not shown) and auditory nerve 116 to the brain (also not shown) where they are perceived by the recipient as sound.
  • FIG. 1 also shows a perspective view of a percutaneous bone conduction device 100 positioned behind an outer ear 101 of a recipient and includes a sound input component 126 to receive sound wave 107.
  • the sound input component 126 can be a microphone, telecoil or similar.
  • sound input component 126 can be located, for example, on or in bone conduction device 100, or on a cable extending from bone conduction device 100.
  • bone conduction device 100 includes a sound processor (not shown), a power source, a vibrating electromagnetic actuator and/or various other operational components.
  • sound input component 126 converts received sound signals into electrical signals. These electrical signals are processed by the sound processor.
  • the sound processor generates control signals that cause the actuator to vibrate. In other words, the actuator converts the electrical signals into mechanical force to impart vibrations to skull bone 136 of the recipient.
  • Bone conduction device 100 further includes coupling apparatus 140 to attach bone conduction device 100 to the recipient.
  • coupling apparatus 140 is attached to an anchor system (not shown) implanted in the recipient.
  • An exemplary anchor system (also referred to as a fixation system) can include a percutaneous abutment fixed to the recipient's skull bone 136. The abutment extends from skull bone 136 through muscle 134, fat 128, and skin 132 so that coupling apparatus 140 can be attached thereto.
  • a percutaneous abutment provides an attachment location for coupling apparatus 140 that facilitates efficient transmission of mechanical force.
  • FIG. 2 A functional block diagram of one example of a bone conduction device 200 is shown in Figure (FIG.) 2.
  • Sound 207 is received by sound input component 202.
  • sound input component 202 is a microphone configured to receive sound 207, and to convert sound 207 into electrical signal 222.
  • electrical signal 222 is output by sound input component 202 to electronics module 204.
  • Electronics module 204 is configured to convert electrical signal 222 into adjusted electrical signal 224.
  • Electronics module 204 can include a sound processor, control electronics, transducer drive components, and a variety of other elements.
  • transducer module 206 receives adjusted electrical signal 224 and generates a mechanical output force in the form of vibrations that are delivered to the skull of the recipient via anchor system 208, which is coupled to bone conduction device 200. Delivery of this output force causes motion or vibration of the recipient's skull, thereby activating the hair cells in the recipient's cochlea (not shown) via cochlea fluid motion.
  • FIG. 2 also illustrates power module 210.
  • Power module 210 provides electrical power to one or more components of bone conduction device 200.
  • power module 210 has been shown connected only to user interface module 212 and electronics module 204.
  • power module 210 can be used to supply power to any electrically powered circuits/components of bone conduction device 200.
  • the power module 210 can provide power to or charge an internal battery of an implantable component of the bone conduction device 200 or one of the implantable components disclosed herein with respect to FIGS. 3 or 4.
  • User interface module 212 which is included in bone conduction device 200, allows the recipient to interact with bone conduction device 200.
  • user interface module 212 can allow the recipient to adjust the volume, alter the speech processing strategies, power on/off the device, view status information on a visual indicator (e.g., LED(s), one or more displays, or similar), etc.
  • user interface module 212 communicates with electronics module 204 via signal line 228.
  • Bone conduction device 200 can further include an external interface module 214 that can be used to connect electronics module 204 to an external device, such as a fitting system.
  • the external device can obtain information from the bone conduction device 200 (e.g., the current parameters, data, alarms, etc.) and/or modify the parameters of the bone conduction device 200 used in processing received sounds and/or performing other functions.
  • information from the bone conduction device 200 e.g., the current parameters, data, alarms, etc.
  • sound input component 202, electronics module 204, transducer module 206, power module 210, user interface module 212, and external interface module 214 have been shown as integrated in a single housing, referred to as housing 225, of the bone conduction device 200.
  • housing 225 a single housing
  • one or more of the illustrated components can be housed in separate or different housings.
  • direct connections between the various modules and devices are not necessary and that the components can communicate, for example, via wireless connections.
  • FIG. 3 is a diagram that depicts an exemplary embodiment of a transcutaneous bone conduction device 300 that includes an external device 340 and an implantable component 350.
  • the transcutaneous bone conduction device 300 of FIG. 3 is a passive transcutaneous bone conduction device in that a vibrating actuator 342 is located in the external device 340. Vibrating actuator 342 is located in housing 344 of the external device 340, and is coupled to plate 346. Plate 346 can be in the form of a permanent magnet and/or in another form that generates and/or is reactive to a magnetic field, or otherwise permits the establishment of magnetic attraction between the external device 340 and the implantable component 350 sufficient to hold the external device 340 against the skin of the recipient.
  • the vibrating actuator 342 is a component that converts electrical signals into vibration.
  • sound input component 126 converts sound into electrical signals.
  • the transcutaneous bone conduction device 300 provides these electrical signals to vibrating actuator 342, or to a sound processor (not shown) that processes the electrical signals, and then provides those processed signals to vibrating actuator 342.
  • the vibrating actuator 342 converts the electrical signals (processed or unprocessed) into vibrations. Because vibrating actuator 342 is mechanically coupled to plate 346, the vibrations are transferred from the vibrating actuator 342 to plate 346.
  • Implanted plate assembly 352 is part of the implantable component 350, and is made of a ferromagnetic material that can be in the form of a permanent magnet, that generates and/or is reactive to a magnetic field, or otherwise permits the establishment of a magnetic attraction between the external device 340 and the implantable component 350 sufficient to hold the external device 340 against the skin of the recipient. Accordingly, vibrations produced by the vibrating actuator 342 of the external device 340 are transferred from plate 346 across the skin to implantable plate 355 of plate assembly 352. This process may be accomplished as a result of mechanical conduction of the vibrations through the skin, resulting from the external device 340 being in direct contact with the skin and/or from the magnetic field between the two plates. These vibrations are transferred without penetrating the skin with a solid object such as an abutment as detailed above with respect to a percutaneous bone conduction device.
  • a solid object such as an abutment as detailed above with respect to a percutaneous bone conduction device.
  • implanted plate assembly 352 is substantially rigidly attached to bone fixture 246B in this embodiment.
  • implantable plate assembly 352 includes through hole 354 that is contoured to the outer contours of the bone fixture 246B.
  • This through hole 354 thus forms a bone fixture interface section that is contoured to the exposed section of the bone fixture 246B.
  • the sections are sized and dimensioned such that at least a slip fit or an interference fit exists with respect to the sections.
  • Plate screw 356 is used to secure plate assembly 352 to bone fixture 246B. As can be seen in FIG.
  • the head of the plate screw 356 is larger than the hole through the implantable plate assembly 352, and thus the plate screw 356 positively retains the implantable plate assembly 352 to the bone fixture 246B.
  • the portions of plate screw 356 that interface with the bone fixture 246B substantially correspond to an abutment screw, thus permitting plate screw 356 to readily fit into an existing bone fixture used in a percutaneous bone conduction device.
  • plate screw 356 is configured so that the same tools and procedures that are used to install and/or remove an abutment screw from bone fixture 246B can be used to install and/or remove plate screw 356 from the bone fixture 246B.
  • FIG. 4 is a diagram that depicts an exemplary embodiment of a transcutaneous bone conduction device 400 that includes an external device 440 and an implantable component 450.
  • the transcutaneous bone conduction device 400 of FIG. 4 is an active transcutaneous bone conduction device in that the vibrating actuator 452 is located in the implantable component 450.
  • a vibratory element in the form of vibrating actuator 452 is located in housing 454 of the implantable component 450.
  • the vibrating actuator 452 is a device that converts electrical signals into vibration.
  • External device 440 includes a sound input component 126 that converts sound into electrical signals.
  • the transcutaneous bone conduction device 400 provides these electrical signals to vibrating actuator 452, or to a sound processor (not shown) that processes the electrical signals, and then provides those processed signals to the implantable component 450 through the skin of the recipient via a magnetic inductance link.
  • a transmitter coil 442 of the external device 440 transmits these signals to implanted receiver coil 456 located in housing 458 of the implantable component 450.
  • the vibrating actuator 452 converts the electrical signals into vibrations.
  • the vibrating actuator 452 is mechanically coupled to the housing 454. Housing 454 and vibrating actuator 452 collectively form a vibrating element.
  • the housing 454 is substantially rigidly attached to bone fixture 246B.
  • housing 454 includes through hole 462 that is contoured to the outer contours of the bone fixture 246B.
  • Housing screw 464 is used to secure housing 454 to bone fixture 246B.
  • the portions of housing screw 464 that interface with the bone fixture 246B substantially correspond to an abutment screw, thus permitting housing screw 464 to readily fit into an existing bone fixture used in a percutaneous bone conduction device (or an existing passive bone conduction device such as that detailed above).
  • housing screw 464 is configured so that the same tools and procedures that are used to install and/or remove an abutment screw from bone fixture 246B can be used to install and/or remove housing screw 464 from the bone fixture 246B.
  • Electronic devices can be carried, or worn, by a person.
  • Electronic devices that are either carried or worn include cellular phones, cellular phone "hands-free" audio devices such as Bluetooth-connected devices, audio players, watches, and hearing devices, such as hearing prostheses.
  • Each of these electronic devices can include a number of electrical and/or mechanical components that are disposed within a housing to protect the components from damage that can occur from a number of different causes.
  • the electrical and/or mechanical components of electronic devices can be damaged from exposure to normal wear and tear, from being dropped or otherwise impacted by an external object, and/or from exposure to environmental elements such as the sun, heat, cold and/or moisture.
  • the electronic device In the event that a component of an electronic device is damaged, the proper operation of the electronic device can become impaired, and the electronic device may no longer function properly, thereby shortening the effective service life of the electronic device. If the electronic device is a hearing device, such as a component of a hearing prosthesis, the recipient may lose the ability to hear, which is undesirable. In addition, damage to a hearing device can cause significant inconvenience and expense to repair or replace the damaged hearing device.
  • a hearing device that a recipient wears externally can be exposed to moisture under various conditions.
  • an externally worn hearing device can be exposed to moisture when the recipient takes a shower or bath, when the recipient swims in a body of water, or when the recipient is exposed to rain.
  • Exposing a hearing device that contains electronic components, such a hearing prosthesis, to moisture can damage the electronic components or cause the electronic components to cease functioning properly.
  • a bone conduction device such as one of the bone conduction devices disclosed herein with respect to FIGS. 1-4, can malfunction when exposed to water.
  • an acoustics sound processor in any of the bone conduction devices of FIGS. 1-4 is submerged in water, there is a very significant risk that the acoustics sound processor may start amplifying feedback, which can generate strong and unpleasant sounds that are audible to the recipient.
  • sound from the vibrating actuator 452 may be transferred to a microphone in sound input component 126 via the water. The sound received by the microphone from the vibrating actuator may cause the acoustics sound processor to generate feedback that is unpleasant to the recipient.
  • a hearing device includes a moisture sensor and conductive contacts coupled to the moisture sensor.
  • the hearing device can, for example, have two, three, or more conductive contacts that are coupled to the moisture sensor. Each of the conductive contacts is exposed to an environment outside of the hearing device.
  • the moisture sensor can measure an attribute using the conductive contacts. The moisture sensor determines when the attribute is indicative of moisture.
  • the moisture sensor can measure the impedance between the conductive contacts and determine when the measured impedance is indicative of moisture.
  • moisture includes moisture in the form of a liquid or solution including water, as well as moisture present in gas or air as humidity.
  • impedance refers to electrical impedance and includes the reciprocal of the electrical conductance (also referred to herein as conductance).
  • a measurement of the impedance between conductive contacts as used herein also includes a measurement of the conductance (or conductivity) between the conductive contacts. Measurements of the impedance (or conductance) between the conductive contacts can include measurements of the resistance, capacitance, and/or inductance between the conductive contacts, or reciprocals thereof.
  • the hearing device can also include a processor.
  • the moisture sensor can generate a moisture detection signal that indicates when an attribute (e.g., the impedance) measured between the conductive contacts is indicative of moisture.
  • the moisture detection signal can be provided to the processor.
  • the hearing device can adapt the processor to an environment outside the hearing device based on the moisture detection signal indicating an attribute that is indicative of moisture.
  • the hearing device can, for example, reduce feedback to the processor based on the moisture detection signal being indicative of a measurement of the impedance between the conductive contacts that is indicative of moisture.
  • the processor can adjust input from a sound input component in the hearing device in response to determining that the impedance between the conductive contacts is indicative of moisture.
  • the hearing device can reduce feedback by decreasing a gain that the processor applies to sound signals received from a microphone in the hearing device.
  • the sound signals received from the microphone are processed by the processor and provided to an ear of the recipient (e.g., using a hearing prosthesis).
  • FIG. 5A is a diagram that illustrates an example of an electronic device 500 that includes a moisture sensor 510.
  • the electronic device 500 can be, for example, a wearable consumer electronic device or a wearable hearing device such as a hearing aid or a hearing (i.e., auditory) prothesis (e.g., one of the bone conduction devices disclosed herein with respect to FIGS. 1-4), a retinal prosthesis, a vestibular device, a seizure device, a tinnitus therapy device, a pacemaker, a drug delivery device, a defibrillator, a functional electrical stimulation device, etc.
  • the moisture sensor 510 can be, for example, an electrical component, such as a processor or a controller circuit, or a portion of a processor or controller circuit.
  • the electronic device 500 of FIG. 5A includes a housing 505 that houses the moisture sensor 510.
  • the electronic device 500 also includes two electrical conductors 501-502 that are coupled to inputs of the moisture sensor 510.
  • the electronic device 500 also includes two external conductive contacts 511 and 512 that are exposed at an external surface of the housing 505, as shown in FIG. 5A.
  • device 500 can include any number of two or more conductors coupled to any number of two or more external conductive contacts.
  • the conductive contacts 511-512 are exposed to an environment outside of the housing 505.
  • the conductive contacts 511-512 can extend above the external surface of the housing 505 or be positioned below the external surface of the housing 505.
  • the electrical conductors 501 and 502 are coupled to conductive contacts 511 and 512, respectively.
  • the conductive contacts 511 and 512 are coupled to the inputs of the moisture sensor 510 through the electrical conductors 501 and 502, respectively.
  • one or both of conductive contacts 511-512 can be a microphone, a microphone cover, a lead, a pin (e.g., a charge pin for a sound processor), a pad, a screw, a bolt, a conductive button, or an electrode.
  • Moisture sensor 510 is a component that is configured to measure an attribute or measurable unit using the conductive contacts 511 and 512 and sense when the attribute or measurable unit is indicative of moisture.
  • the moisture sensor 510 can be configured to measure the electrical impedance (also referred to herein simply as impedance) between the conductive contacts 511 and 512 that are exposed to the environment outside of housing 505.
  • the impedance between the conductive contacts 511- 512 is high when the conductive contacts 511-512 are exposed in an air environment outside housing 505.
  • the impedance between conductive contacts 511-512 decreases when conductive contacts 511-512 are exposed to moisture (e.g., a liquid) outside housing 505.
  • the sensitivity of moisture sensor 510 in detecting the change of impedance caused by the presence of moisture can vary depending on the type of electronic device 500.
  • the electronic device 500 (and other electronic devices disclosed herein) can be enclosed in a moisture resistant covering (e.g., made of plastic) that helps to protect the electronic device from exposure to moisture.
  • a moisture resistant covering e.g., made of plastic
  • the moisture resistant covering can be part of, or separate from, the housing 505. If the electronic device 500 includes a moisture resistant covering, the conductive contacts 511 and 512 also extend to an outer surface of, or outside, the moisture resistant covering.
  • the moisture sensor 510 can also measure the electrical conductance (also referred to herein as conductance) between conductive contacts 511-512. Measurements of impedance performed by a moisture sensor as used herein also include any measurements of the conductance performed by the moisture sensor.
  • the conductance between conductive contacts 511-512 increases when the conductive contacts 511-512 are exposed to moisture (e.g., a liquid) outside housing 505.
  • the moisture sensor 510 receives values that are indicative of the impedance or conductance between conductive contacts 511-512 (e.g., voltage or current) through the electrical conductors 501 and 502, respectively.
  • the electronic device 500 can also include one or more additional electrical conductors (or leads) coupled to moisture sensor 510 for desired operation of electronic device 500 in a particular end-use application.
  • electronic device 500 includes a conductor 503 that is coupled to an output of the moisture sensor 510.
  • the moisture sensor 510 generates a moisture detection signal on conductor 503 that is indicative of the impedance (or conductance) measured between the conductive contacts 511-512.
  • the moisture sensor 510 causes the moisture detection signal to indicate when the moisture sensor 510 has detected moisture outside housing 505 based on a measurement of the impedance between conductive contacts 511-512.
  • the moisture detection signal is communicated from the moisture sensor 510 through conductor 503 to another device or component of the electronic device 500 for performing other functions.
  • the moisture sensor 510 can be part of an electrical component, such as a processor or controller, that performs one or more functions in response to the moisture sensor 510 detecting moisture based on the impedance between contacts 511-512.
  • the predefined functions performed in the aqua mode of operation can include, for example, generating an alarm, and/or suspending or otherwise altering operation of one or more electrical and/or mechanical components disposed in electronic device 500 to preserve the functionality of the electrical and/or mechanical components and thus the integrity of the electronic device 500.
  • the predefined functions performed in the aqua mode of operation can, for example, adapt the electronic device 500 to a moist environment outside the electronic device 500.
  • the predefined functions that the electronic device 500 performs in the aqua mode of operation can include reducing feedback in audio signals received from a microphone in the electronic device 500 based on the measurement of the impedance generated by moisture sensor 510 being indicative of moisture.
  • the feedback can be, for example, audio feedback from an acoustic path between an audio input (e.g., one or more microphones) and an audio output (e.g., vibrations generated by a bone conduction device).
  • the electronic device 500 can reduce feedback in audio signals from a microphone by automatically performing frequency shifting of the audio signals or decreasing or otherwise adjusting a gain (or gain setting) applied to the audio signals from the microphone (e.g., to a predefined gain or adaptively) based on the measurement of the impedance being indicative of moisture during the aqua mode of operation.
  • the electronic device 500 can mitigate feedback in audio signals from a sound input device by another algorithm.
  • the electronic device 500 can, for example, automatically perform a measurement of the feedback in the audio signals from the microphone during the aqua mode of operation. If the measured feedback is greater than a threshold, the electronic device 500 can reduce the gain applied to the audio signals or shift frequencies of the audio signals.
  • the predefined functions that the electronic device 500 performs in the aqua mode of operation can include muting a microphone in the electronic device 500.
  • the microphone can be, for example, one or both of contacts 511-512.
  • the electronic device 500 can be, for example, an auditory prothesis (e.g., a bone conduction device) or hearing aid that provides acoustic signals to an ear of a recipient using the audio signals from the microphone.
  • the software program running in electronic device 500 can automatically exit the aqua mode of operation and return to a normal mode of operation.
  • the software program running in electronic device 500 can, for example, cease to reduce the feedback in audio signals received from a sound input device (e.g., a microphone) based on the moisture detection signal on conductor 503 indicating that the impedance between the contacts 511 and 512 is indicative of air.
  • a sound input device e.g., a microphone
  • the electronic device 500 can automatically enter and exit the aqua mode of operation using the moisture sensor 510 when a user enters and exits water (e.g., a pool), or is otherwise exposed to moisture.
  • FIG. 5B is a diagram that illustrates an example of an electronic device 550 that includes a moisture sensor 530 and three external conductive contacts 531, 532, and 533.
  • the electronic device 550 can be, for example, a wearable consumer electronic device or a hearing device such as a hearing aid or a hearing (i.e., auditory) prothesis (e.g., one of the bone conduction devices disclosed herein with respect to FIGS. 1-4), a retinal prosthesis, a vestibular device, a seizure device, a tinnitus therapy device, a pacemaker, a drug delivery device, a defibrillator, a functional electrical stimulation device, etc.
  • Moisture sensor 530 can be, for example, an electrical component, such as a processor or a controller circuit, or a portion of a processor or controller circuit.
  • the electronic device 550 also includes a housing 520 and four electrical conductors 521, 522, 523, and 524 that are coupled to moisture sensor 530.
  • the housing 520 houses the moisture sensor 530 and the electrical conductors 521-524.
  • the three conductive contacts 531-533 are exposed at an external surface of the housing 520, and also extend to the surface of, or outside of, any moisture resistant covering over housing 520. Thus, the conductive contacts 531-533 are exposed to an environment outside of housing 520. In some embodiments, the conductive contacts 531-533 can extend above the external surface of the housing 520 or be positioned below the external surface of the housing 520.
  • the conductive contacts 531-533 are coupled to electrical conductors 521-523, respectively.
  • the conductive contacts 531-533 are coupled to inputs of the moisture sensor 530 through the electrical conductors 521-523, respectively.
  • one or more of the conductive contacts 531-533 can be a microphone, a microphone cover, a lead, a pin (e.g., a charge pin for a processor), a pad, a screw, a bolt, a conductive button, or an electrode.
  • a pin e.g., a charge pin for a processor
  • device 550 can include any number of three or more conductors coupled to any number of three or more external conductive contacts.
  • Moisture sensor 530 is a component that is configured to measure an attribute or measurable unit using the conductive contacts 531-533 and determine when the attribute or measurable unit is indicative of moisture.
  • the moisture sensor 530 can be configured to measure the impedance (or conductance) between any two or more of the three conductive contacts 531-533.
  • the impedance between the conductive contacts 531-533 is high when the conductive contacts are exposed to air and decreases when the conductive contacts are exposed to moisture (e.g., water) outside housing 520.
  • the moisture sensor 530 generates a moisture detection signal at an output on conductor 524 that is indicative of the impedance measured between two or more of the conductive contacts 531-533.
  • the moisture sensor 530 provides the moisture detection signal through conductor 524 to a further device or component of the electronic device 550 for performing other functions.
  • the moisture detection signal indicates when the moisture sensor 530 has detected moisture outside housing 520 based on a measurement of the impedance or conductance between any two or more of the conductive contacts 531-533.
  • the electronic device 550 is configured to perform one or more additional functions in response to the moisture detection signal being indicative of moisture.
  • one of the conductive contacts 531-533 can be placed on electronic device 550 farther away from the two other conductive contacts to reduce the risk of falsely detecting moisture, for example, when a user holds a finger across the two conductive contacts that are closer together.
  • the third conductive contact allows the moisture sensor 530 to be able to more rapidly detect when the electronic device 550 is taken out of water.
  • the electronic device 550 can, for example, automatically perform one or more predefined functions using software that implements an aqua mode of operation in response to the moisture sensor 530 detecting moisture between two or more of the conductive contacts 531-533.
  • the predefined functions performed by the electronic device 550 in the aqua mode of operation can include any of the functions described above with respect to FIG. 5A, such as, reducing feedback in audio signals received from a microphone (e.g., by decreasing a gain applied to, or shifting frequencies of, the audio signals), measuring feedback, muting a microphone, generating an alarm, and/or suspending or otherwise altering operation of one or more components in the electronic device to preserve the functionality of these components and the integrity of the electronic device 500.
  • Software operating in the electronic device 550 can automatically enter the aqua mode of operation in response to the moisture sensor 530 detecting moisture between two or more of the conductive contacts 531-533.
  • the software can automatically exit the aqua mode of operation, and can return to a normal mode of operation, in response to moisture sensor 530 no longer detecting moisture between two or more of the conductive contacts 531-533 (e.g., detecting air between contacts 531-533).
  • moisture sensors have been described and illustrated for purposes of reference and example, it is to be understood that moisture sensors that operate using principals other than impedance or conductance, can be used in conjunction with electronic devices as disclosed herein without departing from the scope of this disclosure.
  • Electronic devices as disclosed herein, comprising the use of a moisture sensor include all types of electronic devices comprising electrical and/or mechanical components disposed therein, and that can be held or worn by a user and as a result may be subjected to a high-moisture environment.
  • Examples of electronic devices include, but are not limited to, battery-powered audio, video, audio/video devices, wireless or "hands-free” microphones and receivers (such as Bluetooth connected devices that are worn on a person's head), and hearing devices including hearing prostheses and hearing aids.
  • FIG. 6 is a diagram that illustrates an example of an electronic device 600 that includes a housing 610 and a processor 601 positioned inside the housing 610.
  • the electronic device 600 can be, for example, a wearable consumer electronic device or a hearing device such as a hearing aid or a hearing prothesis (e.g., one of the bone conduction devices disclosed herein with respect to FIGS. 1-4), a retinal prosthesis, a vestibular device, a seizure device, a tinnitus therapy device, a pacemaker, a drug delivery device, a defibrillator, a functional electrical stimulation device, etc.
  • the processor 601 is configured to fit within the housing 610.
  • Processor 601 can include hardware or software processors (e.g., Central Processing Units) that can obtain and execute instructions.
  • the processor 601 can communicate with and control the performance of other components of the electronic device 600.
  • the processor 601 also includes circuitry and/or software that functions as a moisture sensor.
  • the processor 601 can also include circuitry and software that functions as a sound processor, for example, if electronic device 600 is a hearing aid or hearing prothesis.
  • the moisture sensor in processor 601 is able to detect moisture outside the housing 610.
  • the electronic device 600 includes three conductive contacts 621, 622, and 623 that are electrically coupled to inputs of the processor 601 through electrical conductors 611, 612, and 613, respectively.
  • the conductive contacts 621-623 are exposed at an external surface of the housing 610 of electronic device 600, as shown in FIG. 6.
  • the conductive contacts 621-623 are exposed to an environment outside of the housing 610.
  • the conductive contacts 621-623 can extend above the external surface of the housing 610 or be positioned below the external surface of the housing 610.
  • device 600 can include any number of three or more conductors coupled to any number of three or more external conductive contacts.
  • one or more of the conductive contacts 621-623 can be a microphone, a microphone cover, a lead, a pin, a pad, a screw, a bolt, a conductive button, or an electrode.
  • two or three of conductive contacts 621-623 (and/or additional conductive contacts not shown in FIG. 6) can be conductive pins or pads, such as charging pins for the processor 601.
  • two or three of conductive contacts 621-623 can include microphones or conductive covers for microphones (e.g., metal meshes covering microphones) that connect to conductive pins on processor 601.
  • two or three of conductive contacts 621, 622, or 623 can be conductive leads that are extensions of conductors 611, 612, or 613, respectively.
  • Two of the conductive contacts 621-623 can be placed on electronic device 600 close together and the third conductive contact can be placed on device 600 farther away from the two other conductive contacts to reduce the risk of falsely detecting moisture, as described herein with respect to FIG. 5B.
  • the moisture sensor in the processor 601 is configured to measure an attribute or measurable unit using the conductive contacts 621-623 and determine when the attribute or measurable unit is indicative of moisture.
  • the moisture sensor in the processor 601 can detect moisture outside the housing 610 by measuring the impedance (or conductance) between any two or more of the three conductive contacts 621-623.
  • the moisture sensor in processor 601 can then compare the calculated resistance to one or more predetermined thresholds, or a range of predetermined values, to determine whether moisture is present outside housing 610 between the measured contacts 621/622/623.
  • the processor 601 can use electrochemical impedance spectroscopy (EIS) to calculate the impedance outside of housing 610 using conductive contacts 621-623 as electrodes.
  • EIS electrochemical impedance spectroscopy
  • the electronic device 600 includes other components in housing 610 that are in communication with the processor 601. As shown in FIG. 6, these components include input devices 602, a user interface 603 (e.g., a visual indicator like one or more light-emitting diodes (LEDs), displays, or similar that can be viewed from outside of housing 610), a memory component 604 (such as a Flash memory or random access memory), and wireless communication components 606 (such as a wireless antenna and transceiver) for communicating with an external wireless device (e.g., a consumer device such as a phone or computer, or a hearing device such as an auditory prosthesis).
  • the input devices 602 can include, for example, one or more microphones that sense sound in the environment of the electronic device 600 and provide one or more audio signals that are indicative of the sensed sound to the processor 601.
  • the memory 604 is one or more software-based or hardware-based computer- readable storage media operable to store information accessible by the processor 601.
  • the memory 604 can store instructions executable by the processor 601 to implement applications or cause performance of operations described herein, as well as store other data.
  • the memory 604 can be volatile memory (e.g., random access memory or RAM), nonvolatile memory (e.g., flash memory or read-only memory or ROM), or combinations thereof.
  • the memory 604 can include transitory memory or non-transitory memory.
  • the memory 604 can also include one or more removable or non-removable storage devices.
  • the memory 604 can include non-transitory computer readable storage media, such as RAM, ROM, EEPROM (Electronically-Erasable Programmable Read-Only Memory), flash memory, optical disc storage, magnetic storage, solid state storage, or any other memory media usable to store information for later access.
  • the memory 604 encompasses a modulated data signal (e.g., a signal that has one or more of its characteristics set or changed in such a manner as to encode information in the signal), such as a carrier wave or other transport mechanism and includes any information delivery media.
  • the memory 604 can include wired media such as a wired network or direct-wired connection, and wireless media such as acoustic, radio-frequency, infrared and other wireless media or combinations thereof.
  • the electronic device 600 can include other components, such as a system bus, component interfaces, a graphics system, a power source (e.g., a battery), among other components.
  • the processor 601 can include software that is configured to provide a variety of different outputs and/or perform various functions based on a moisture detection output generated by the moisture sensor indicating the presence of moisture outside of housing 610.
  • the processor 601 can, for example, include software that performs one or more predefined functions in an aqua mode of operation to improve the experience of a user of the electronic device 600 in response to the moisture sensor detecting moisture between two or more of the conductive contacts 621-623.
  • the software can, for example, automatically enter the aqua mode of operation in response to the moisture sensor detecting moisture.
  • the processor 601 can send a signal to the user interface 603 to light one or more LEDs to indicate the presence of moisture outside of housing 610.
  • the processor 601 can store one or more values in memory 604 that are generated by the moisture sensor in processor 601 or transmit values generated by the moisture sensor through the wireless link components 606 to an external wireless device.
  • the wireless link components 606 can provide wireless communications and can support one or more of a variety of communication technologies and protocols, such as ETHERNET, cellular, BLUETOOTH, near-field communication, and RF (radio-frequency), among others.
  • the values stored in memory 604 or transmitted to the external wireless device can include, for example, the impedance or conductance values measured by the moisture sensor or values generated by the moisture sensor indicating that moisture has been detected outside of housing 610 between two or more of the conductive contacts 611-613 (e.g., a time of detection or a threshold reached).
  • the processor 601 can reduce the power consumption of the electronic device 600 (e.g., to reduce the charge drained from a battery in device 600) by turning off wireless communication with an external wireless device (e.g., a phone or computer) through wireless link components 606 and/or by powering off or disabling the wireless link components 606 (e.g., turning off a 2.4 gigahertz (GHz) Bluetooth link) during the aqua mode of operation based on a measurement of the impedance generated by the moisture sensor being indicative of moisture between contacts 621-623.
  • the wireless communication with the external wireless device may not be functioning when the device 600 is under water.
  • the processor 601 can reduce feedback in audio signals received from one or more microphones (e.g., that are part of input devices 602 or contacts 621-623) during the aqua mode of operation based on the measurement of the impedance generated by the moisture sensor being indicative of moisture.
  • processor 601 can reduce feedback in audio signals from the one or more microphones by decreasing (or otherwise adjusting) a gain or a gain setting applied to the audio signals from the microphones based on the moisture sensor detecting moisture during the aqua mode of operation.
  • processor 601 can reduce feedback in audio signals from the one or more microphones by shifting frequencies of the audio signals from the microphones based on the moisture sensor detecting moisture during the aqua mode of operation.
  • the processor 601 can, for example, automatically measure the feedback and compare the measured feedback to one or more thresholds to determine when to adjust the gain or frequencies of the audio signals.
  • the processor 601 can mute one or more microphones (e.g., that are part of input devices 602 or contacts 621-623) in the electronic device 600 based on the measurement of the impedance generated by the moisture sensor being indicative of moisture.
  • the electronic device 600 can mitigate feedback in audio signals from a sound input device by another algorithm.
  • the electronic device 600 can be a hearing aid or auditory prothesis that provides a sound signal to an ear of the recipient using audio data received from the one or more microphones.
  • the software running in the processor 601 can automatically exit the aqua mode of operation and return to a normal mode of operation in response to the moisture sensor no longer detecting moisture between the contacts 621-623.
  • the software program running in processor 601 can, for example, cease to reduce the feedback in audio signals received from a sound input device (e.g., a microphone) based on the measurement of the impedance between two or more of the contacts 621-623 generated by the moisture sensor being indicative of air.
  • the processor 601 can be configured to enter and exit the aqua mode of operation in response to manual input received from the user through one or more of the input devices 602 (e.g., a button on the surface of device 600).
  • the input devices 602 e.g., a button on the surface of device 600.
  • two or more of the contacts 621-623 are removable (e.g., microphone covers), and the processor 601 is configured to enter and exit the aqua mode of operation in response to the two or more removable contacts 621-623 being placed on, or removed from, the electronic device 600.
  • Electronic devices as disclosed herein comprising the moisture sensor as used in conjunction with a hearing prosthesis, may be configured to provide one or more different types of outputs or functions in response to the detection of moisture outside the electronic device.
  • Such outputs and/or functions can include, but are not limited to, altering the function and/or shutting down one or more of the electrical components of the hearing prosthesis, providing a visual and/or audio alarm or indication to the user or recipient, recording or logging the event into a memory device, and any combination thereof.
  • the electronic device can be configured to recheck the moisture presence once or serially at random or predetermined intervals.
  • any embodiment or any feature disclosed herein can be combined with any one or more other embodiments and/or other features disclosed herein, unless explicitly indicated otherwise. Any embodiment or any feature disclosed herein can be explicitly excluded from use with any one or more other embodiments and/or other features disclosed herein, unless explicitly indicated otherwise. It is noted that any method detailed herein also corresponds to a disclosure of a device and/or system configured to execute one or more or all of the method actions associated with the device and/or system as detailed herein. It is further noted that any disclosure of a device and/or system detailed herein corresponds to a method of making and/or using that device and/or system, including a method of using that device according to the functionality detailed herein.

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  • Health & Medical Sciences (AREA)
  • General Health & Medical Sciences (AREA)
  • Neurosurgery (AREA)
  • Otolaryngology (AREA)
  • Physics & Mathematics (AREA)
  • Engineering & Computer Science (AREA)
  • Acoustics & Sound (AREA)
  • Signal Processing (AREA)
  • Prostheses (AREA)

Abstract

Un dispositif auditif comprend un capteur d'humidité et au moins deux contacts couplés au capteur d'humidité. Chacun des contacts est exposé à l'extérieur du dispositif auditif. Le capteur d'humidité détecte lorsqu'un attribut entre les contacts indique la présence d'humidité. Un procédé comprend la génération d'une mesure entre les contacts dans le dispositif auditif et la diminution de la rétroaction vers un processeur dans le dispositif auditif sur la base de la mesure indiquant la présence d'humidité.
PCT/IB2024/057715 2023-08-29 2024-08-08 Dispositifs et procédés de détection d'humidité Pending WO2025046357A1 (fr)

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US63/535,300 2023-08-29

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Citations (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US20140086440A1 (en) * 2012-09-25 2014-03-27 Paul Francis Holmberg Electronic devices with protective capacity
KR20140084367A (ko) * 2012-12-13 2014-07-07 삼성전자주식회사 사용자의 외부 환경을 고려한 청각 장치 및 방법
KR20150141082A (ko) * 2014-06-09 2015-12-17 삼성전자주식회사 신호 보상 방법 및 장치
US20160059015A1 (en) * 2014-09-02 2016-03-03 Frank Risi Intra-cochlear stimulating assembly insertion
WO2023026240A1 (fr) * 2021-08-26 2023-03-02 Cochlear Limited Détermination d'accès à l'oreille interne

Patent Citations (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US20140086440A1 (en) * 2012-09-25 2014-03-27 Paul Francis Holmberg Electronic devices with protective capacity
KR20140084367A (ko) * 2012-12-13 2014-07-07 삼성전자주식회사 사용자의 외부 환경을 고려한 청각 장치 및 방법
KR20150141082A (ko) * 2014-06-09 2015-12-17 삼성전자주식회사 신호 보상 방법 및 장치
US20160059015A1 (en) * 2014-09-02 2016-03-03 Frank Risi Intra-cochlear stimulating assembly insertion
WO2023026240A1 (fr) * 2021-08-26 2023-03-02 Cochlear Limited Détermination d'accès à l'oreille interne

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