RELAY INTERFACE FOR CONNECTING AN IMPLANTED MEDICAL DEVICE TO AN EXTERNAL ELECTRONICS DEVICE
20220331599 · 2022-10-20
Inventors
Cpc classification
A61N1/37247
HUMAN NECESSITIES
A61N1/37282
HUMAN NECESSITIES
International classification
Abstract
An interface relay system for use with a fully implantable medical devices that permits transcutaneous coupling of the implanted medical device to a consumer electronics device. In one embodiment, coupling the implanted medical device to the external electronics device provides a back-up source of power for operating the implanted medical device. In another embodiment, coupling the implanted medical device to the external electronics device allows for providing unidirectional and/or bidirectional data transfer between the devices. In one arrangement, the consumer electronics device may be connectable to a communications/data network to allow for network communication between the implantable medical device and a remote processing platform/server.
Claims
1. A system for use with an implantable medical device, comprising: an implant interface device comprising: a housing adapted for external mounting proximate to an implanted medical device; a cable extending from the housing and terminating in a connector adapted for connection with a mating port; a wireless transceiver for transcutaneously transmitting at least one of power or data received via the connector to an implanted medical device and transcutaneously receiving communications from the implanted medical device; and a consumer electronics device including: a power source; a processor; a communications port, wherein the connector of the implant interface device is selectively connectable with the communications port; and a wireless interface for interconnecting the consumer electronics device to a communications network, wherein the consumer electronics device is operative for at least one of transmitting data originating from the implantable medical device to the communications network and transmitting data originating from the communications network to the implantable medical device.
2. The system of claim 14, wherein the consumer electronics device comprises a mobile phone.
3. The system of claim 2, wherein the mobile phone interconnects to a data network.
4. The system of claim 1, wherein the consumer electronic device further comprises: a communications protocol stored in an electronic memory device of the portable consumer electronics device, wherein the communications protocol enables the consumer electronic device to receive and output data via the communications port.
5. The system ref claim 1, wherein the consumer electronics device further comprises: a microphone or speaker for generating an audio output signal, wherein the audio output signal is provided to the implant interface device, wherein the implant interface device provides the audio signal to an implanted hearing instrument.
6. The device of claim 1, wherein the implant interface device further comprises an electronic memory device, the memory device including: an implant communication protocol; at least one consumer electronics device communication protocol; and a controller, wherein the controller utilizes the implant communication protocol and the consumer electronics device communication protocol to exchange data between the implantable medical device and the consumer electronics device.
7. A method for use with an implantable medical device, comprising: positioning an external interface device proximate to an implanted medical device, wherein the external interface device includes a wireless transmitter adapted to transcutaneously transmit power to a receiver of the implanted medical device; interconnecting a cable of the external interface device with a port of a consumer electronics device, wherein the cable interconnects to a power source within the consumer electronics device; utilizing the external interface device, adapting power received from the consumer electronics for transcutaneous transmission; and transcutaneously transmitting power to the implantable medical device, wherein the implantable medical device is at least partially powered by the consumer electronic device.
8. The method of claim 7, wherein interconnecting the cable comprises interconnecting the cable with a mobile phone.
9. The method of claim 7, further comprising: utilizing the external interface device, transmitting data between the implanted medical device and the consumer electronics device.
10. The method of claim 7, wherein the implanted medical device is neural stimulation device.
11. A method for use with an implantable hearing instrument, comprising: positioning an external interface device proximate to an implanted hearing instrument, wherein the external interface device includes a wireless transmitter adapted to transcutaneously, communicate with a wireless transmitter of the implanted hearing instrument; establishing data communication between the external interface device and a consumer electronics device having a network interface connectable to data network; utilizing the consumer electronics device, transmitting data parameters via the network interface to a platform in the data network, wherein the data parameters are transcutaneously obtained from the implantable hearing instrument by the external interface device; receiving fitting parameters via the network interface of the consumer electronics device, wherein the fitting parameters are generated in response to the data parameters; and transcutaneously transmitting the fitting parameters to the implantable hearing instrument using the external interface device.
12. The method of claim 11, wherein: the implantable medical device comprises an implantable hearing instrument; and the method further comprises: receiving an audio stimulation signal via the network interface; and providing the audio stimulation signal to the implanted hearing instrument, wherein the data parameters are generated in response to the audio stimulation signal.
13. The method of claim 12, wherein providing the audio stimulation signal comprises: generating an ambient audio signal in response to the audio stimulation signal, wherein the implantable hearing instrument receives the audio stimulation signal via a microphone.
14. The method of claim 12, wherein providing the audio stimulation signal comprises: utilizing the external interface device to transcutaneously transmit the audio stimulation signal to a signal processor of the implantable hearing instrument.
15. The method of claim 11, further comprising: operating a controller in the interface device to utilize an implant communication protocol and a consumer electronics device communication protocol to translate signals received from one of the implantable hearing instrument and the consumer electronics device in to a form receivable by the other of the implantable hearing instrument and the consumer electronics device.
Description
BRIEF DESCRIPTION OF THE DRAWINGS
[0026] For a more complete understanding of the present invention and further advantages thereof, reference is now made to the following detailed description taken in conjunction with the drawings in which:
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DETAILED DESCRIPTION
[0039] Reference will now be made to the accompanying drawings, which at least assist in illustrating the various pertinent features of the presented inventions. In this regard, the following description of a fully implantable hearing instrument is presented for purposes of illustration and description. Furthermore, the description is not intended to limit the inventions to the forms disclosed herein. Consequently, variations and modifications commensurate with the following teachings, and skill and knowledge of the relevant art, are within the scope of the presented inventions. The embodiments described herein are further intended to explain the best modes known of practicing the inventions and to enable others skilled in the art to utilize the inventions in such, or other embodiments and with various modifications required by the particular application(s) or use(s) of the presented inventions.
[0040]
[0041] In the illustrated system of
[0042] The transducer 140 is supportably connected to a positioning system 110, which in turn, is connected to a bone anchor 116 mounted within the patient's mastoid process (e.g., via a hole drilled through the skull). The transducer 140 includes a connection apparatus 112 for connecting the transducer 140 to the ossicles 120 of the patient. In a connected state, the connection apparatus 112 provides a communication path for acoustic stimulation of the ossicles 120, e.g., through transmission of vibrations to the incus 122.
[0043] During normal operation, acoustic signals are received subcutaneously at the microphone 130. Upon receipt of the acoustic signals, a signal processor within the implant housing 100 processes the signals to provide a processed audio drive signal (e.g., a transducer drive signal) via wire 106 to the transducer 140. As will be appreciated, the signal processor may utilize digital processing techniques to provide frequency shaping, amplification, compression, and other signal conditioning, including conditioning based on patient-specific fitting parameters. The audio drive signal causes the transducer 140 to transmit vibrations at acoustic frequencies to the connection apparatus 112 to effect the desired sound sensation via mechanical stimulation of the incus 122 of the patient. These vibrations are then transmitted from the incus 122 to the stapes 124, effecting a stimulation of the cochlea 126.
[0044] To power the fully implantable hearing instrument system of
[0045] Use of such fully implantable hearing instruments can present various difficulties to users. For instance, while onboard power supply of the implantable instruments are typically sized to provide one or more days of continuous use without recharge, there can be instances when a user fails to recharge their unit and desires a backup power source. Further, adjusting a fully implantable hearing instrument typically requires an in-depth fitting process where a user must travel to an audiologist having specialized equipment that allows the audiologist to communicate with the implanted hearing instrument and obtain information from the unit in order to generate new and/or alter existing fitting parameters. It is against this background that various aspects of the presented inventions are provided.
[0046] Relay Interface
[0047]
[0048] As illustrated in
[0049] In one arrangement, the relay interface 200 is a passive device that contains no internal power source. See
[0050] Typically, when interconnected to a consumer electronic device, power received from that consumer electronic device via the connector will be DC power. It will be appreciated that in order to transmit the power transcutaneously, that power must be converted to an alternating current (e.g., AC power). Accordingly, the power control circuitry 220 includes an inverter that allows for converting the DC power to AC power. Further, the power control circuitry may further include voltage regulators or power converters that allow for modulating, for example, voltage levels received from the consumer electronic device to a voltage that is acceptable by the implanted hearing instrument. In this regard, the power control circuitry is operative to receive a first electrical signal from the consumer electronic device and provide a second electrical signal to the implanted hearing instrument where the second electrical signal is in a form that is compatible with the implanted hearing instrument.
[0051] In another arrangement, the relay interface 200 further includes a controller 224 that permits data communication between the consumer electronic device 150 and the implanted medical device 100. See
[0052] One or more of these elements can include instructions that are stored on storage media. The instructions can be retrieved and executed by a processing system. Further, portions or such instructions may be implemented as software, hardware and/or firmware. Some examples of storage media are memory devices and integrated circuits. The instructions are operational when executed by the processor/controller to direct the system to operate in accordance with functionality described herein. The term processor or controller refers to a single processing device or group of inter-operational processing devices. Some examples of processing systems are integrated circuits and logic circuitry. Those skilled in the art are familiar with instructions processing systems and storage media.
[0053] In a yet further arrangement, a wireless relay interface is provided that is adapted for remote RE interconnection (e.g., several feet or meters) with the implanted medical device. See
[0054] The wireless relay interface may be connected to a port of the consumer electronics device (e.g., plug in) or may communicate with the consumer electrics device via a second wireless interface 232. That is, the wireless relay interface may wirelessly communicate with both the implanted medical device 100 and the consumer electronics device 150. Again, a controller 224 within the wireless relay interface will be operative to access protocols for both the implanted medical device and one or more consumer electronic devices to allow conversion of signals received from one of these devices into a form that is compatible with the other device.
[0055] The relay interfaces may include further components as well. For instance, when utilized for purposes of fitting an implanted hearing instrument, the relay interfaces may include tone generators and/or speakers (not shown) that allow these devices to generate ambient output signals for use in a fitting procedure. Likewise, these devices may themselves include a power source that may provide back-up power for an implanted medical device.
[0056] The ability to interconnect a consumer electronic device to the implantable hearing instrument utilizing a relay interface provides numerous advantages. For instance, many consumer electronic devices include a graphical user interfaces and/or input means that permit for inputting information to the consumer electronic device, which may be provided to the implanted medical device. Likewise, these graphical user interfaces may be utilized to provide instructions to users or technicians that are adjusting the medical devices. Accordingly, to provide such interface functions, the consumer electronic device 150 will typically include a specialized application that allows for communication with the relay interface and a specific implanted medical device. Furthermore, such an application may also allow for the consumer electronic device to provide information received from the implanted medical device to a communications network. Such communications network may include, without limitation, telephony networks as well as data networks. Further, such data networks may include local networks as well as wide area networks and/or internet. In this regard, a consumer electronic device may be utilized to send information received from the medical device to a remote platform for processing. Alternatively, the consumer electronic device 150 may be utilized to download information from a remote platform/location for provision to the implanted medical device.
[0057] Fitting Application
[0058] In the case of implanted hearing instruments, individual fitting of the hearing instrument is typically required. Such fitting often necessitates an audiologist applying various audio inputs to a hearing instrument and adjusting the various settings of that instrument. In this regard, the speech signal processing of the implanted hearing instrument (e.g., algorithms therein) may be altered to provide improved hearing for a specific individual. Furthermore, such algorithms may be updated from time to time as new or improved processing methods are generated. Accordingly, as new algorithms or alterations for existing algorithms are developed, it is desirable to update such hearing instruments. Typically, this has required a patient to visit an audiologist who specializes in fitting the specific implanted hearing instrument. Use of the relay interface that allows for interconnecting the implanted hearing instrument to a remote processing platform may streamline this operation.
[0059] Historically, audiologists have been provided with updated fitting parameters and/or updated algorithms as they have been become available. This process relied on the audiologist to ensure that the latest revisions or versions of such fitting parameters/algorithms are utilized. However, experience has shown that many audiologists do not maintain up-to-date databases. Accordingly, some patients may not receive the latest revisions for their implanted devices.
[0060] A further problem with current fitting procedures is that the algorithms that generate fitting parameters for the implanted hearing instrument are typically very computationally intensive. In this regard, it is not uncommon for a desktop computer to require anywhere from 2 to 15 minutes to process information received from an implanted hearing instrument in order to generate new more optimal fitting parameters for that instrument; simplified fittings are often performed to fit schedules rather than patients. In such an arrangement, after the audiologist applies various audio stimulation and receives these parameters, the audiologist and the patient are required to wait while the new fitting parameters are generated. Due to the time required to generate the parameters, the doctor and patient often lack the patience to perform multiple fitting iterations.
[0061] It has been recognized that by processing fitting algorithms at a remote location various efficiencies may be achieved. For instance, communication over a network allows for providing test parameters obtained from a patient to a remote location (e.g., network platform) that may be maintained by, for example, the maker of the implantable device. In this regard, the remote platform may have the latest up-to-date algorithms. Furthermore, such a network platform may be designed to provide high-speed processing of the test data parameters/samples/responses obtained from a patient. In this regard, test parameters received an implanted hearing instrument in response to applied audio stimuli are typically small data files. For instance, during fitting a patient may move their head in various different postures (i.e., 4 to 5 different postures) prior to receiving an audio input signal/tone. A sample and/or user response is taken at each posture. Such samples may include the response of the implanted hearing instrument to the audio input signal, which may be collected using the relay interface. Such samples and responses have very small sizes sometimes on the order of a few kbytes per sample and may be efficiently transferred to a remote server via a data network. However, the remote server may utilize multiple processors to process complex fitting algorithms in view of the received data samples/responses. For instance, such a remote server may utilize a graphics processing unit (GPU) that utilizes multiple parallel processing paths to reduce the processing time for a data set. Accordingly, the processing times for processing a data set and generating fitting information may be reduced from a few minutes to a few seconds or less, including transfer time over the data network. In this regard, the patient and the doctor are more likely to tolerate multiple iterations of fitting to determine more optimal fitting parameters for a particular patient.
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[0065] In fitting applications, it may be beneficial that the c consumer electronic device 150 provide a graphical user interface that allows for the user to receive instructions and/or input information. Such a system is illustrated in
[0066] In various arrangements, the fitting application 154 may be supported/stored on the consumer electronic device 150 or may be supported via a remote server as a webpage. As shown, the application 154 may permit the selective adjustment of different frequency ranges (e.g., 500 Hz, 1000 Hz etc.) utilizing, for instance, slide adjustors 156. Other fitting parameters may likewise be adjusted. In addition to permitting the adjustment of one or more fitting parameters, the application may permit the output of testing tones/signals. As may be appreciated, various test signals, such as speech intelligibility databases and audio environments, that generate audio signals for fitting and testing purposes may be of considerable size. In some cases, these programs require over a gigabyte of storage. The present system also permits streaming of test signals from the remote platform. That is, instead of storing the signal generation program locally, the outputs of the program may be streamed to the consumer electronic device via the network. The consumer electronics device may include storage (e.g., a buffer) to allow temporary storage of this information prior to desired output as a testing signal.
[0067] The fitting application 154 also includes various user controls that permit the user or audiologist to control fitting (e.g., output tones) and/or input responses that may be sent to the remote server. For instance, where the consumer electronic device 150 is a mobile phone, a speaker of that phone may be utilized to provide audio stimulation to the user. Further, in arrangements where the audiologist is remotely located from the patient, a message bar within the graphical user interface may permit communication between the audiologist and the user. In this regard, the remote audiologist may request that the user assume various postures prior to applying an audio input signal. Once the user is correctly positioned, they may initiate the tone, for instance, via the touch screen of the device. Such an arrangement may allow users to access specifically trained audiologist who have expertise in fitting and thereby provide improved fitting for the user.
[0068] The ability of a user to receive fittings remotely may provide several additional benefits. For instance, a user may be fit for a particular environment. That is, rather than being fit while in an audiologists office, a user may be fit in an audio environment where, for instance, a certain level of background noise is present (e.g., a work environment). In this regard, a particular fitting of the implanted hearing instrument may be more optimized for a specific use. Likewise, the ability to remotely access a patient database 430, may also permit a user to remotely store a plurality of fittings that may be prepared for differing settings. By way of example only, a user may store fittings for high noise environments, low noise environments, specialized environments such as concerts/listening to music, and/or for enhancing speech intelligibility. The remote storage various fittings for differing environments may allow a user to access and download a particular fitting based on their current needs. Stated otherwise, a user may change between predetermined fittings based on their needs. Further, if updated algorithms are developed, these stored fittings may be automatically updated. In addition to pre-stored fittings, a user may also have the ability to adjust various settings of their hearing instrument. In this regard, a user may be provided an adjustment interface (see e.g.,
[0069] Another benefit of the remote processing capabilities provided by the presented systems is the potential accumulation of data/parameters from multiple medical devices. As will be appreciated, there may be instances where patients having similar underlying conditions and utilize a common implanted medical device having similar settings. New patients having the same or similar underlying conditions may benefit from use similar settings. In this regard, it may be beneficial during a fitting or other adjustment, to provide an initial set of fitting parameters based on similarly situated patients. That is, in another aspect, fittings/parameters of different patients may be accumulated to provide fitting/parameters suggestions for new patients or patients being fit for a specific purpose.
[0070]
[0071] As shown in
[0072]
[0073] In general, the use of a remote server allows for accumulating information associated with multiple fittings and providing suggested fittings based on this information. How this information is categorized is a matter of design choice; well known examples include clustering, nearest neighbor, self-organizing maps, support vector machines, kernel method, and other statistical learning methods. What is important is that a current patient may be compared to previous successful parameters to identify suggested parameters. Of course, such suggested parameters may be altered once received. However, provision of such initial setting may significantly reduce the fitting time.
[0074] Remote Microphone
[0075] In a further arrangement, the ability to interconnect the implanted hearing instrument 90 to a consumer electronic device 150 using the relay interface 200 may allow for utilizing that consumer electronic device 150 as an audio input to the hearing instrument 90. As will be appreciated, many consumer electronic devices such as mobile phones/smart phones include sophisticated microphones. By interconnecting the relay interface to such a phone and utilizing an appropriate application on that phone, the phone may temporarily replace, for example, an implanted microphone of the hearing instrument as the input source for the hearing instrument. This may allow, for example, the user of the hearing instrument to position the consumer electronic device at a desired location (e.g., center of a table) to improve hearing functionality. Further, the application that permits use of the consumer electronics device/phone as an input microphone may provide filtering or other signal processing functions to the implant device.
[0076] The foregoing description of the present invention has been presented for purposes of illustration and description. Furthermore, the description is not intended to limit the invention to the form disclosed herein. Consequently, variations and modifications commensurate with the above teachings, and skill and knowledge of the relevant art, are within the scope of the present invention. The embodiments described hereinabove are further intended to explain best modes known of practicing the invention and to enable others skilled in the art to utilize the invention in such or other embodiments and with various modifications required by the particular application(s) or use(s) of the present invention. It is intended that the appended claims be construed to include alternative embodiments to the extent permitted by the prior art.