Enabling device for implantable medical devices
First Claim
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1. A method comprising:
- receiving at a hearing prosthesis a first transmission of a signal;
starting a timer for an interval of time in which to receive a second transmission of the signal;
determining whether the hearing prosthesis received the second transmission of the signal prior to an expiration of the timer;
in response to determining that the hearing prosthesis received the second transmission of the signal prior to the expiration of the timer, delivering a first stimulus to a body part of a recipient; and
in response to determining that the hearing prosthesis failed to receive the second transmission of the signal prior to the expiration of the timer, delivering a second stimulus to the body part, whereina current of the first stimulus is greater than a current of the second stimulus; and
the first stimulus and the second stimulus cause the recipient to perceive at least a portion of a sound.
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Abstract
Methods and devices for determining the operating mode of an implantable medical device are disclosed. A first device transmits a keep-alive signal to an implantable medical device. If the implantable medical device receives the keep-alive signal within a first time interval, the implantable medical device operates in a normal operating mode. If the implantable medical device does not receive the keep-alive signal with the first time interval, at least a portion of the implantable medical device is deactivated.
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Citations
28 Claims
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1. A method comprising:
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receiving at a hearing prosthesis a first transmission of a signal; starting a timer for an interval of time in which to receive a second transmission of the signal; determining whether the hearing prosthesis received the second transmission of the signal prior to an expiration of the timer; in response to determining that the hearing prosthesis received the second transmission of the signal prior to the expiration of the timer, delivering a first stimulus to a body part of a recipient; and in response to determining that the hearing prosthesis failed to receive the second transmission of the signal prior to the expiration of the timer, delivering a second stimulus to the body part, wherein a current of the first stimulus is greater than a current of the second stimulus; and the first stimulus and the second stimulus cause the recipient to perceive at least a portion of a sound. - View Dependent Claims (2, 3, 4, 5, 6)
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7. A method comprising:
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determining a number of missed signals in a sample interval, wherein the number of missed signals includes a first number of time intervals in which a hearing prosthesis configured to stimulate a body part of a recipient to cause a recipient to perceive a portion of a sound failed to receive a signal, and wherein the sample interval comprises a second number of time intervals in which the signal could have been received; making a first determination that includes determining whether the number of missed signals is less than a first value that represents a first allowable number of time intervals in which the hearing prosthesis failed to receive the signal; and selecting an operating mode of the hearing prosthesis implantable medical device based on the first determination, wherein a maximum amplitude of a stimulus delivered by the hearing prosthesis to the body part depends on the operating mode. - View Dependent Claims (8, 9, 10, 11, 12, 13, 14, 15, 16)
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17. A system comprising:
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a remote device configurable to transmit a signal; and a hearing prosthesis configured to receive the signal within in a time interval, wherein in response to the hearing prosthesis failing to receive the signal within the time interval, a component of the hearing prosthesis reduces amplitudes of stimuli delivered to a recipient that cause the recipient to perceive at least a portion of a sound. - View Dependent Claims (18, 19, 20, 21, 22, 23, 24)
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25. A device comprising:
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a sensor configured to receive a sound from an environment; a sound processor configured to receive a sensor output from the sensor and generate a processed signal based on the sensor output; a stimulating component configured to generate a stimulus that stimulates a body part associated with auditory perception in a human body; an output component configured to send an output signal to the stimulating component, wherein the output signal includes information used to generate the stimulus; a receiver configured to receive a first signal from a remote device; and a processor configured to; determine whether the receiver received the first signal within a first time interval; send a first control signal to the output component in response to determining that the receiver received the signal within the first time interval, wherein the first control signal causes the output component to include the processed signal in the output signal; and send a second control signal to the output component in response to determining that the receiver failed to receive the signal within the first time interval, wherein the second control signal causes the output component to include a portion of the processed signal in the output signal. - View Dependent Claims (26, 27, 28)
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Specification