K Number
K234095
Manufacturer
Date Cleared
2024-06-21

(178 days)

Product Code
Regulation Number
874.1050
Reference & Predicate Devices
Predicate For
N/A
AI/MLSaMDIVD (In Vitro Diagnostic)TherapeuticDiagnosticis PCCP AuthorizedThirdpartyExpeditedreview
Intended Use

This Otonova Pro device is indicated for use when there is a requirement to screen for hearing disorders by objective and non-invasive means. ABR, TEOAE and DPOAE screening test results are automatically interpreted and a clear "Pass' or 'Refer' result is presented to the user. Use of the device is indicated when the patient is unable to give reliable voluntary responses to sound, especially with infants.

Use of the device facilitates the early detection of hearing loss and its characterization. Where the individual to be screened is healthy with no medical conditions related to the ear, as in the case of well-baby hearing screening, the user can be a trained screener. In all other cases the user should be an audiologist or medical professional.

The TEOAE and DPOAE analytical functions of the device are indicated when objective non-invasive clinical investigations require the characterization and monitoring of the peripheral auditory function. For this purpose, the device is intended to be used by audiologists or other professionals skilled in audiology.

These TEOAE and DPOAE tests are applicable to populations of any age to obtain objective evidence of peripheral auditory function.

Device Description

OtoNova is a compact, portable battery-powered electronic device which records physiological responses to sound for the purpose of hearing testing. It Is controlled wirelessly from a local controlling device.

OtoNova has two hardware variants: OtoNova and OtoNova Pro.

Both the OtoNova and OtoNova Pro devices have been directly engineered from Otodynamics' currently marketed Otoport OAE+ABR device, retaining all the testing algorithms of the Otoport OAE+ABR device. The primary aim of the development was to physically separate the control console from the testing device while maintaining the same performance and effectiveness.

Like the predicate Otoport OAE+ABR device, both OtoNova devices can record two different physiological indicators of a functioning auditory system's peripheral response to sound namely a) Otoacoustic emission (OAEs), which are small sounds made by the inner ear in response to acoustic stimulation, and b) Auditory brainstem responses (ABRs) are tiny electrical signals emanating from the auditory brainstem in response to sound. Automatic recognition of an ABR response is referred to as AABR.

During ABR or OAE testing, low-level sounds are delivered to the ear. The responses to multiple presentations of these sounds (either acoustic or electrical responses) are recorded digitally and added together to enhance repeated responses with respect to the random/ noise signals that are always present. The averaged signal is automatically analysed by the device to identify and quantify true physiological response component and to assess the degree of noise contamination. This allows the quality/ accuracy of the recording to be determined for evidence of response validity. The processed data is reported to and displayed on the controlling device.

AI/ML Overview

The provided text describes the regulatory clearance (K234095) for the Otodynamics OtoNova/OtoNova Pro device, comparing it to its predicate device, the Otoport/Otocheck OAE+ABR (K143395). The document focuses on demonstrating substantial equivalence, rather than detailing a specific clinical study with predefined acceptance criteria for AI model performance.

However, based on the information provided, we can infer the acceptance criteria and the study that "proves" the device meets them, primarily through the lens of functional equivalence and clinical agreement with a well-established predicate device. The core argument is that the OtoNova/OtoNova Pro performs audiological tests substantially the same as the predicate device, despite changes in physical design and user interface.

Here's an analysis based on the provided text, structured to answer your questions:


Inferred Acceptance Criteria and Reported Device Performance

The acceptance criteria are not explicitly stated with quantitative metrics for the new device. Instead, the performance is deemed acceptable if it is "substantially the same" or "similar" to the predicate device, which is already legally marketed and presumed efficacious. The "study" is a combination of bench testing and a small clinical validation aimed at demonstrating this equivalence.

Here's a table based on the comparisons made in the document:

Acceptance Criteria (Inferred from Predicate Equivalence)Reported Device Performance (OtoNova/OtoNova Pro)
Electrical Driving Signals Equivalence: Stimulator probe transducer electrical driving signals must be substantially the same as the predicate (within 1dB) across the functional frequency range for TEOAE, DPOAE, and ABR."Found to be substantially the same (to within 1dB) across the functional frequency range."
Acoustic Stimulation Equivalence: Acoustic stimulation delivered by the probe into a calibrated ear simulator must be substantially the same as the predicate (within 1dB) across the functional frequency range for TEOAE, DPOAE, and ABR (including ABR with ear-cup)."Found to be substantially the same (to within 1dB) across the functional frequency range."
Sensitivity to Simulated Responses Equivalence: OAE and ABR responses recorded from a factory-reference 'response simulator' must be substantially the same levels/waveforms as the predicate (within 1dB)."Responses recorded by the OtoNova Pro were substantially the same levels (within 1dB) across the functional frequency for OAEs, and the ABR recorded had substantially the same size and waveform for ABR (within 1dB)."
Clinical Screening Test Result Agreement: OtoNova's Nova-Link should yield the same "Pass," "Refer," or "Invalid test result" as the predicate device under the same screening criteria."OtoNova’s Nova-Link gives same screening test result under the same screening criteria (i.e. clear response, no clear response, invalid result) as the predicate device."
Clinical Physical Characteristics of Recorded Responses Agreement: Physical characteristics of recorded responses (OAE, ABR waveforms) should be similar to the predicate, with marginal variability no wider than the predicate."The physical characteristics of the recorded responses were similar on each device. In the case of marginal response levels, where variability is to be expected, the range of marginality was no wider than for the Otoport OAE+ABR."
Clinical Reported Response Levels (OAE) Agreement: Reported OAE response levels should be the same across frequency as the predicate, within expected tolerance due to subject movement."In the recording of OAE response for clinical purposes the OtoNova and OtoNova Pro the reported response levels were the same across frequency as with the Otoport OAE +ABR device within the tolerance expected due to subject movement."
Clinical Reported Noise Levels Agreement: Reported noise levels should be similar to those reported by the predicate, within the expected intrinsic variability of noise."The reported noise levels reported by Novalink were similar to those reported by the Otoport C. within the expected intrinsic variability of noise."
Usability (Human Factors) Acceptance: Users should be able to sufficiently understand the product/IFU to successfully record tests and use the device per its intended use with no substantial issues."All the 16 users were able to sufficiently understand the OtoNova product/ IFU, to successfully record tests and use the medical device per its intended use... There were no substantial issues found during this OtoNova summative evaluation."

Study Details:

  1. A table of acceptance criteria and the reported device performance: See table above.

  2. Sample sized used for the test set and the data provenance:

    • Clinical Testing: "data collected from 20 volunteer adult subjects" for functional equivalence comparison between OtoNova Pro and the predicate Otoport. The text does not specify the country of origin, but the company is based in the UK and the prior validation of the predicate included trials in "USA, Brazil, Israel and UK," implying international data.
    • Clinical Testing (Predicate Validation): The predicate's ABR infant screening algorithm was validated on "70 infants performed at Otodynamics Ltd" and independently trialed in "collaborating hospitals in USA, Brazil, Israel and UK." The algorithm was validated from "1078 tests files." This data is retrospective for the predicate's prior clearance, but serves as the basis for asserting current device's equivalence.
    • Human Factors/Usability Testing: "16 participants external to Otodynamics." Provenance not specified but likely conducted in the UK given the company's location.
  3. Number of experts used to establish the ground truth for the test set and the qualifications of those experts:

    • For the current device's clinical testing, the "ground truth" is highly comparative to the predicate device's output. The subjective assessment of "similar," "no wider than," and "within expected tolerance" implies expert judgment, but the number and qualifications of experts involved in data interpretation for this specific equivalence trial are not provided.
    • For the predicate's ABR template, it was derived from a database of "1000 infant's ABR screening response waveforms independently collected using the Otodynamics ILO88 instrument... as part of a multicenter investigation into the Identification of Neonatal Hearing Impairment." This suggests a consensus-based ground truth from a large research study, likely involving multiple clinical experts (audiologists, researchers specialized in neonatal hearing). Their specific qualifications aren't listed, but the citation to a scientific publication (Norton et al., 2000) implies peer-reviewed clinical expertise.
  4. Adjudication method (e.g. 2+1, 3+1, none) for the test set: Not explicitly stated. Given the nature of objective audiometric measurements (Pass/Refer based on algorithms comparing to criteria, and quantitative signal levels), adjudication in the typical sense of human reader consensus for subjective interpretations (like radiology reads) is less applicable. The "ground truth" is intrinsically linked to the device algorithms and their comparison to the predicate's algorithms, which are well-established.

  5. If a multi-reader multi-case (MRMC) comparative effectiveness study was done, If so, what was the effect size of how much human readers improve with AI vs without AI assistance: Not applicable. This device is not an AI interpretation model for human readers. It's a diagnostic/screening device that produces objective measurements and automatically interpreted Pass/Refer results. The "AI" (automated interpretation) is core to the device's function, not an assistance tool for human interpretation.

  6. If a standalone (i.e. algorithm only without human-in-the-loop performance) was done: Yes, in essence, the "bench tests" and the comparison of the algorithms' outputs (Pass/Refer, quantitative levels) can be considered a standalone assessment of the device's core functionality as an automated system. The device automatically analyzes the recorded physiological responses and presents a clear "Pass" or "Refer" result, which is the algorithm's standalone output.

  7. The type of ground truth used (expert consensus, pathology, outcomes data, etc.):

    • Primary Ground Truth: For the current device, the ground truth is established by functional and clinical equivalence to a legally marketed predicate device. The presumption is that the predicate's performance is already validated against a clinical ground truth.
    • Underlying Ground Truth (for predicate's algorithms):
      • OAE Screening: Based on the "Rhode Island Hearing Screening Assessment Project" and its reported algorithm, which was verified against clinical outcomes or established audiometric standards for hearing screening.
      • ABR Screening: Derived from a database of "1000 infant's ABR screening response waveforms Independently collected" as part of a "multicenter investigation into the Identification of Neonatal Hearing Impairment" (Norton et al., 2000). This implies a large-scale clinical dataset with established diagnoses/outcomes as the ultimate ground truth for the ABR algorithm's development.
  8. The sample size for the training set:

    • The document explicitly states that the OtoNova/OtoNova Pro uses the "same DSP firmware algorithms" as the predicate device. Therefore, there was no new training set specifically for this device's algorithms.
    • The training data implied for the predicate's ABR algorithm development was a database of "1000 infant's ABR screening response waveforms." This served as the basis for the "newborn ABR template" used by both devices.
    • The OAE algorithm's "training" or validation was performed as part of the "Rhode Island Hearing Screening Assessment Project," though no specific sample size for a "training set" is provided for that.
  9. How the ground truth for the training set was established:

    • For the ABR "training" (template creation): The "newborn ABR template" was derived from "1000 infant's ABR screening response waveforms independently collected." The ground truth for these 1000 waveforms would have been established through a comprehensive clinical protocol, likely involving repeated measures, follow-up diagnostics, and potentially consensus interpretation by expert audiologists from the multicenter investigation. The goal was to characterize "normal" ABR responses in neonates.
    • For the OAE algorithm: While not explicitly detailed as a "training set," the underlying principles and validation came from the "Rhode Island Hearing Screening Assessment Project," suggesting that the "Pass/Refer" criteria were correlated with actual hearing status as determined by more definitive diagnostic tests, forming the ground truth.

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Image /page/0/Picture/0 description: The image contains the logos of the Department of Health and Human Services and the Food and Drug Administration (FDA). The Department of Health and Human Services logo is on the left, and the FDA logo is on the right. The FDA logo includes the letters "FDA" in a blue square, followed by the words "U.S. Food & Drug Administration" in blue text.

June 21, 2024

Otodynamics % Chandler Thames Quality/Regulatory Consultant Rook Quality Systems 1155 Mount Vernon Hwy Suite 800 Dunwoody, Georgia 30338

Re: K234095

Trade/Device Name: OtoNova/OtoNova Pro Regulation Number: 21 CFR 874.1050 Regulation Name: Audiometer Regulatory Class: Class II Product Code: EWO, GWJ Dated: Mav 21, 2024 Received: May 21, 2024

Dear Chandler Thames:

We have reviewed your section 510(k) premarket notification of intent to market the device referenced above and have determined the device is substantially equivalent (for the indications for use stated in the enclosure) to legally marketed predicate devices marketed in interstate commerce prior to May 28, 1976, the enactment date of the Medical Device Amendments, or to devices that have been reclassified in accordance with the provisions of the Federal Food, Drug, and Cosmetic Act (the Act) that do not require approval of a premarket approval application (PMA). You may, therefore, market the device, subject to the general controls provisions of the Act. Although this letter refers to your product as a device, please be aware that some cleared products may instead be combination products. The 510(k) Premarket Notification Database available at https://www.accessdata.fda.gov/scripts/cdrh/cfdocs/cfpmn/pmn.cfm identifies combination product submissions. The general controls provisions of the Act include requirements for annual registration, listing of devices, good manufacturing practice, labeling, and prohibitions against misbranding and adulteration. Please note: CDRH does not evaluate information related to contract liability warranties. We remind you, however, that device labeling must be truthful and not misleading.

If your device is classified (see above) into either class II (Special Controls) or class III (PMA), it may be subject to additional controls. Existing major regulations affecting your device can be found in the Code of Federal Regulations, Title 21, Parts 800 to 898. In addition, FDA may publish further announcements concerning your device in the Federal Register.

Additional information about changes that may require a new premarket notification are provided in the FDA guidance documents entitled "Deciding When to Submit a 510(k) for a Change to an Existing Device"

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(https://www.fda.gov/media/99812/download) and "Deciding When to Submit a 510(k) for a Software Change to an Existing Device" (https://www.fda.gov/media/99785/download).

Your device is also subject to, among other requirements, the Quality System (QS) regulation (21 CFR Part 820), which includes, but is not limited to, 21 CFR 820.30. Design controls; 21 CFR 820.90. Nonconforming product; and 21 CFR 820.100, Corrective and preventive action. Please note that regardless of whether a change requires premarket review. the OS regulation requires device manufacturers to review and approve changes to device design and production (21 CFR 820.30 and 21 CFR 820.70) and document changes and approvals in the device master record (21 CFR 820.181).

Please be advised that FDA's issuance of a substantial equivalence determination does not mean that FDA has made a determination that your device complies with other requirements of the Act or any Federal statutes and regulations administered by other Federal agencies. You must comply with all the Act's requirements, including, but not limited to: registration and listing (21 CFR Part 807); labeling (21 CFR Part 801); medical device reporting of medical device-related adverse events) (21 CFR Part 803) for devices or postmarketing safety reporting (21 CFR Part 4, Subpart B) for combination products (see https://www.fda.gov/combination-products/guidance-regulatory-information/postmarketing-safety-reportingcombination-products); good manufacturing practice requirements as set forth in the quality systems (QS) regulation (21 CFR Part 820) for devices or current good manufacturing practices (21 CFR Part 4, Subpart A) for combination products; and, if applicable, the electronic product radiation control provisions (Sections 531-542 of the Act); 21 CFR Parts 1000-1050.

Also, please note the regulation entitled, "Misbranding by reference to premarket notification" (21 CFR 807.97). For questions regarding the reporting of adverse events under the MDR regulation (21 CFR Part 803), please go to https://www.fda.gov/medical-device-safety/medical-device-reportingmdr-how-report-medical-device-problems.

For comprehensive regulatory information about mediation-emitting products, including information about labeling regulations, please see Device Advice (https://www.fda.gov/medicaldevices/device-advice-comprehensive-regulatory-assistance) and CDRH Learn (https://www.fda.gov/training-and-continuing-education/cdrh-learn). Additionally, you may contact the Division of Industry and Consumer Education (DICE) to ask a question about a specific regulatory topic. See the DICE website (https://www.fda.gov/medical-device-advice-comprehensive-regulatoryassistance/contact-us-division-industry-and-consumer-education-dice) for more information or contact DICE by email (DICE@fda.hhs.gov) or phone (1-800-638-2041 or 301-796-7100).

Sincerely.

Shuchen Peng -S

Shu-Chen Peng, Ph.D. Assistant Director DHT1B: Division of Dental and ENT Devices OHT1: Office of Ophthalmic, Anesthesia, Respiratory, ENT and Dental Devices Office of Product Evaluation and Quality Center for Devices and Radiological Health

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Indications for Use

510(k) Number (if known) K234095

Device Name OtoNova/OtoNova Pro

Indications for Use (Describe)

This Otonova Pro device is indicated for use when there is a requirement to screen for hearing disorders by objective and non-invasive means. ABR, TEOAE and DPOAE screening test results are automatically interpreted and a clear "Pass' or 'Refer' result is presented to the user. Use of the device is indicated when the patient is unable to give reliable voluntary responses to sound, especially with infants.

Use of the device facilitates the early detection of hearing loss and its characterization. Where the individual to be screened is healthy with no medical conditions related to the ear, as in the case of well-baby hearing screening, the user can be a trained screener. In all other cases the user should be an audiologist or medical professional.

The TEOAE and DPOAE analytical functions of the device are indicated when objective non-invasive clinical investigations require the characterization and monitoring of the peripheral auditory function. For this purpose, the device is intended to be used by audiologists or other professionals skilled in audiology.

These TEOAE and DPOAE tests are applicable to populations of any age to obtain objective evidence of peripheral auditory function.

Type of Use ( Select one or both, as applicable )
Prescription Use (Part 21 CFR 801 Subpart D)
Over-The-Counter Use (21 CFR 801 Subpart C)

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SUBMITTER

Otodynamics Ltd 30-38 Beaconsfield Rd Hatfield, Hertfordshire AL10 8BB, United Kingdom

Phone: +44 1707 267540 Email: daniel.budd@otodynamics.com

Contact Person: Daniel Budd, QA Manager Date Prepared: 9 April.2024

DEVICE

Trade Name:OtoNova/OtoNova Pro
Common Name:OtoNova/OtoNova Pro
Classification Name:Audiometer / Evoked response auditory stimulator(874.1050 & 882.1900)
Regulatory Class:II
Product Codes:EWO & GWJ

PREDICATE DEVICE

The legally marketed device to which equivalence is being claimed [807.92(a)(3)] is the Otoport/ Otocheck OAE+ABR ™, K143395.

This predicate has not been the subject of any design-related recalls.

DEVICE DESCRIPTION

OtoNova is a compact, portable battery-powered electronic device which records physiological responses to sound for the purpose of hearing testing. It Is controlled wirelessly from a local controlling device.

OtoNova has two hardware variants: OtoNova and OtoNova Pro, illustrated below in Figure 1.

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FIGURE 1

Image /page/4/Picture/1 description: The image shows two different versions of the OtoNova device. The OtoNova on the left has 3 single AABR electrode connectors and a single probe connector. The OtoNova Pro on the right has 1 combined AABR electrode connector and 2 probe connectors. Both devices have indicators for L/R ear, sensors, test and device status.

  • . OtoNova (left) has 3 separate connectors for 3 ABR electrode connections and accepts one probe. The OtoNova Pro (right) has a combined electrode connector and accepts 2 probes (red and blue sockets).
  • . The OtoNova and OtoNova Pro perform the same audiological tests. The devices are controlled wirelessly from a separate controlling device. This can be a PC, a laptop or Android tablet running the supplied 'Nova-Link' software.

Figure 2 illustrates the configuration of OtoNova Pro in use. The test operator commands the OtoNova Pro from the supplied Nova-Link application running on the controlling device. OtoNova operates in the same way.

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Figure 2. Operation of the OtoNova with Nova-Link

Image /page/5/Figure/1 description: The image shows the OtoNova Pro testing device and its various applications. The device can be used with an OAE probe or electrodes for infants. It can wirelessly transfer processed test data between the device and a controller via Bluetooth. The controlling device can print or export reports to a PC, and an operator can conduct tests via the controlling device running Nova-Link software.

Both the OtoNova and OtoNova Pro devices have been directly engineered from Otodynamics' currently marketed Otoport OAE+ABR device, retaining all the testing algorithms of the Otoport OAE+ABR device. The primary aim of the development was to physically separate the control console from the testing device while maintaining the same performance and effectiveness.

Separation of testing and controlling devices provides several advantages to the user. It gives greater freedom for the relative positioning of patient and tester within the test environment. This may be advantageous when testing infants, children, or when testing a patient from outside of a test booth. It also provides choice of controlling processor and display. For example, a tablet allows the operator to observe tests and records on a full size display screen, rather than on a diminutive handheld device screen. It also allows access other services on the controlling device.

Principles of operation

Like the predicate Otoport OAE+ABR device, both OtoNova devices can record two different physiological indicators of a functioning auditory system's peripheral response to sound namely a) Otoacoustic emission (OAEs), which are small sounds made by the inner ear in response to acoustic stimulation, and b) Auditory brainstem responses (ABRs) are tiny electrical signals emanating from the auditory brainstem in response to sound. Automatic recognition of an ABR response is referred to as AABR.

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During ABR or OAE testing, low-level sounds are delivered to the ear. The responses to multiple presentations of these sounds (either acoustic or electrical responses) are recorded digitally and added together to enhance repeated responses with respect to the random/ noise signals that are always present. The averaged signal is automatically analysed by the device to identify and quantify true physiological response component and to assess the degree of noise contamination. This allows the quality/ accuracy of the recording to be determined for evidence of response validity. The processed data is reported to and displayed on the controlling device.

Impaired/ defective ears do not produce a response which meets the pass criteria of the pass criteria of the OtoNova are the same as those of the predicate Otoport device. In SCREENING applications all failures to record a clear response which are not attributable to technical issues (e.g., an excess of noise or insufficient test duration) are recommended to be referred for further audiological investigations to determine if there is a hearing problem. Both serious and trivial ear problems (e.g., a blocked ear canal) can prevent the criteria being met and so cause a test failure. Technically inadequate recordings are recommended to be repeated after addressing the technical issues.

In CLINICAL OAE applications the strength of the OAE response is measured at differing stimulus frequencies and stimulus levels. The analysis is intended to be used as one input to a diagnostic process in conjunction with other audiometric tests, or as a means of monitoring cochlea status over time.

Both OAE and ABR responses are acoustically stimulated. The stimulus is delivered to the ear by an inserted earphone device called a 'probe'. The probe contains a microphone which also records the OAE response, and the acoustic stimulus given.

Figure 3 shows compatible Otodynamics probes intended for stimulation and recording of DPOAE, TEOAEs, and for both TEOAEs and DPOAE. These are the UPD, UPS and XPD probes respectively.

Image /page/6/Figure/5 description: The image shows three different types of otodynamics probes labeled UPD, UPS, and XPD. Each probe has a different design and color scheme. The UPD probe is white with a gray tip, the UPS probe is brown and white, and the XPD probe is white with a blue tip. The probes are labeled as Figure 3 and are likely part of a study or presentation on otodynamics.

The ABR response can be acoustically stimulated by any one of these probes but it is recorded electrically via 3 disposable self-adhesive conducting pads called 'electrodes', which are placed on the scalp (Fig 4).

Image /page/6/Picture/7 description: The image shows a small, white, oval-shaped object with a circular base. The object appears to be made of a translucent material, possibly plastic, with a white border. At the center of the circular base, there is a small, silver-colored button or contact point. The object is casting a shadow on a white background.

Figure 4 Otodynamics Electrodes (AABR testing)

For ABR stimulation the probe may be inserted into the ear canal (as for OAEs) or into a plastic cushioned

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'ear cup' which is placed over the ear. ABRs recording with OtoNova are intended for infant screening only.

Both OtoNova and OtoNovaPro variants offer the same two modes of hearing function assessment, that is OAE and AABR, separately or in combination, with optional levels of utilities.

The hearing test functions available on a device are identified by 6 OtoNova model names as follows:

  • OtoNova OAE,
  • OtoNova AABR,
  • OtoNova OAE+AABR
  • OtoNova Pro OAE,
  • OtoNova Pro AABR,
  • OtoNova Pro OAE+ABR

The level of utilities available is further determined by the Nova-Link program and the installed application package. There are three variants of Nova-Link application levels:

SCREENER, CLINICAL and ADVANCED CLINICAL.

These are available on both standard OtoNova and OtoNova Pro.

SCREENER LEVEL functionality provides Basic OAE and or AABR screening with preset automated pass/refer test protocols.

CLINICAL LEVEL provides all of the SCREENING LEVEL functionality plus detailed OAE analysis over a selectable frequency range at configurable stimulus levels. If AABR is enabled, examination of the ABR screening waveform and test conditions are available. No ABR diagnostic information is provided.

ADVANCED CLINICAL LEVEL functionality provides the same screening and clinical tests with enhanced user protocol definitions.

INDICATIONS FOR USE

The OtoNova device is indicated for use when there is a requirement to screen for hearing disorders by objective and non-invasive means. ABR, TEOAE and DPOAE screening test results are automatically interpreted and a clear 'Pass' or 'Refer' result is presented to the user. Use of the device is indicated when the patient is unable to give reliable voluntary responses to sound, especially with infants. Use of the device for screening facilitates the early detection of hearing loss and its characterization.

Where the individual to be screened is healthy with no medical conditions related to the case of well-baby hearing screening, the user can be a trained screener. In all other cases the user should be an audiologist or medical professional.

The TEOAE and DPOAE analytical functions of the device are indicated when objective non-invasive clinical investigations require the characterization and monitoring of the functional status of the peripheral auditory function. For this purpose, the device is intended to be used by audiologists or other professionals skilled in audiology. These TEOAE and DPOAE tests are applicable to populations of any age to obtain objective evidence of peripheral auditory function.

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COMPARISON OF TECHNOLOGICAL CHARACTERISTICS WITH THE PREDICATE DEVICE

The same Otoacoustic Emissions (OAEs) & Auditory Brainstem Response (ABR) techniques, algorithms and principles of response analysis are utilized in both the subject and predicate devices.

The OtoNova reproduces the Otoport/Otocheck OAE+ABR predicate device with regard to its acoustic stimulation, response gathering, analysis, display, and report generation database capabilities. The OtoNova has the same intended uses and fulfills the same roles as the predicate device.

Basis of the screening functions of the OtoNova and OtoONova Pro

The OAE and ABR screening functions of the OtoNova and OtoNova Pro are identical to the Otoport OAE+ABR predicate device (K143395).

The OAE infant screening function of OtoNova (subject) and Otoport (predicate), via its stimulus levels and pass criteria is as developed and verified in the Rhode Island Hearing Screening Assessment Project and reported in "The Rhode Island Hearing Assessment Project:Implications for universal newborn hearing screening. Seminars in Hearing 1993, Volume 14 Number 1. ". That algorithm now in use on the OtoNova requires a response to a nonlinear transient stimulus at 84dBSPL peak equivalent level, of 6dB or more greater than the measured noise level ( ie signal to noise level) in at least two half octave frequency bands between 1 and 4kHz.

The ABR infant screening function of the OtoNova presents a short chirp stimuli at 35dBHL or 40dBHL, and an requires a response waveform with a standard Fsp statistic of at least 3.1 (elevated according to noise levels) in addition to a waveform match to a newborn ABR template.

The stimulus level of the short chirp provided by the Otonova is automatically adjusted to the recommended dBHL sound level according to our measurements of hearing threshold of this stimulus in 25 healthy young adults with no hearing problems, using the Otoport and Otodynamics probe.

The newborn ABR template used as in integral part of the OtoNova and Otoport devices was derived from a database 1000 infant's ABR screening response waveforms independently collected using the Otodynamics ILO88 instrument (K962995) as part of the a multicenter investigation into the Identification of Neonatal Hearing Impairment as reported in " Identification of Neonatal Hearing lmpairment: Summary and Recommendations Norton, Susan J.; Gorga, Michael P.; Widen, Judith E.; Folsom, Richard C.; Sininger, Yvonne; Cone-Wesson, Barbara; Vohr, Betty R.; Fletcher, Kristin A. Ear and Hearing 21(5):p 529-535, October 2000.

The complete ABR infant screening algorithm of the Otoport OAE+ABR device - now duplicated in the OtoNova- was validated on 70 infants performed at Otodynamics Ltd and was then independently trialled in collaborating hospitals in USA, Brazil, Israel and UK . The algorithm was validated from 1078 tests files and results provided by these trials. Separately and independently the performance of the Otoport OAE+ABR screening function was evaluated on 56 neonates at a UK hospital by direct comparison with a Natus ABR screening product.

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Table 1 Equivalence Table.

Subject DevicePredicate DeviceDiscussion
OtoNova/OtoNova ProOtoport/Otocheck OAE+ABR (K143395)
Common NameAudiometer Evoked response auditory stimulator.Audiometer Evoked response auditory stimulatorsame
RegulatonNumbersAudiometer 21 CFR 874.1050, Evoked response auditory stimulator 21 CFR882.1900Audiometer 21 CFR 874.1050, Evoked response auditory stimulator 21 CFR882.1900same
ClassificationProduct CodesIIIIsame
Product CodesEWO & GWJEWO & GWJsame
Intended UseFor use in the detection hearing disorders in infants with AABR or OAEs,B8and to provide objective input from OAEs for use as part of a diagnosticaudiological test battery with infants children and adults.For use in the detection hearing disorders in infants with AABR or OAEs, andto provide objective input from OAEs for use as part of a diagnosticaudiological test battery with infants children and adults.same
Indications forUseThis Otonova Pro device is indicated for use when there is a requirementto screen for hearing disorders by objective and non-invasive means. ABR,TEOAE and DPOAE screening test results are automatically interpretedand a clear 'Pass' or 'Refer' result is presented to the user.Use of the device is indicated when the patient is unable to give reliablevoluntary responses to sound, especially with infants.Use of the device facilitates the early detection of hearing loss and itscharacterization.Where the individual to be screened is healthy with no medical conditionsrelated to the ear, as in the case of well-baby hearing screening, theuser can be a trained screener. In all other cases the user should be anaudiologist or medical professional.The TEOAE and DPOAE analytical functions of the device areindicated when objective non-invasive clinical investigations require thecharacterization and monitoring of the functional status of the peripheralauditory function. For this purpose, the device is intended to be used byaudiologists or other professionals skilled in audiology. These TEOAE andDPOAE tests are applicable to populations of any age to obtain objectiveevidence of peripheral auditory function.The Otoport/Otocheck OAE+ABR device is indicated for use when there is arequirement to screen for hearing disorders by objective and non-invasivemeans. Test results are automatically interpreted and a clear 'Pass' or'Refer' result is presented to the user.Use of the device is indicated when the patient is unable to give reliablevoluntary responses to sound, especially with infants.Use of the device facilitates the early detection of hearing loss and itscharacterization.Where the individual to be screened is healthy with no medical conditionsrelated to the ear, as in the case of well-baby hearing screening, the user canbe a trained. In all other cases the user should be an audiologist or medicalprofessional.The device is also indicated when objective non-invasive clinicalinvestigations require the characterization and monitoring of the functionalstatus of the peripheral auditory function using otoacoustic emissions(OAEs). It may also be used in populations of any age to obtain objectiveevidence of normal peripheral auditory function.Similar. The OtoNova and OtoNova Pro manualsexplicitly name the OAE's used.
Overall DeviceDesignPortable device (120mm x 79mm x 26mm; 170g)Stimulates the ear with quiet sounds.Non-invasive, records physiological responses to these sounds.Automatically evaluates the evidence for a responseTransmitsprocessed results by bluetooth wireless connection to thecontrolling device (tablet). Controlling device displays a concise resultsabout the presence or absence of responsesSaves a detailed record of the test on the controlling deviceAs a screener the device alerts to the possibility of hearing loss and inclinical use documents the status of the ear by OAEsHandheld device (197mm x 70mm x 30mm; 250g)Stimulates the ear with quiet sounds.Non-invasive, records physiological responses to these sounds.Automatically evaluates the evidence for a responseDisplays a concise results about the presence or absence responses onits integral display.Saves a detailed record of the testDevice alerts to the possibility of hearing loss and documents the statusof the earSimilar. The only significant differences betweendevice designs is that in the OtoNova there is aseparation of testing device from controllingdevice via a bluetooth wireless link. The subjectdevice is of lighter weight and smaller body. It isto be marketed as portable for use a controllingdevice which runs the supplied Nova-Linksoftware. The predicate is a self containedhandheld device with its own diplay screen andkeypad, making it heavier and larger.
User ControlsVia touch screen or keyboard of the controlling device running the suppliedNova-Link software which wirelessly commands the OtoNova test deviceVia soft keypad on the handheld deviceEquivalent.The OtoNova's 'Nova-Link' softwareprovides the same control functions via touchscreen or keyboard of the controlling device, asdoes the Otoport OAE+ABR device via itskeypad.D13
TestSpecificationsABR Stimulus for infant screening Chirp 30-45dBnHL . 35 & 40dBnHL, recom-mended. 60dBnHL available as a training aid only , not for screeningDPOAEs.Frequency ratio F2/F1 1.22. F2 frequency range 1-8kHz ,Stimulus levels for screening L1/L2 preset 65/55, 60/55 or 65/50dBSPLStimulus levels ofr clinical use L1 & L2 configurable 40-75dBSPLTEOAE Half octave analysis. Frequency range 1-6kHzStimulus levels for screening 84dBSPLpeStimulus levels for clinical use configurable 74- 84dBSPLpe,Advanced clinical 60-90dBSPLpeABR Stimulus for infant screening Chirp 30-45dBnHL, 35&40dB recom-mended. 60dBnHL available as a training aid only,not for screeningDPOAEs.Frequency ratio F2/F1 1.22. F2 frequency range 1-8kHz ,Stimulus levels for DP screening L1/L2 65/55dBSPL (confgurable)Stimulus levels ofr clinical use L1 & L2 configurable 40-75dBSPLTEOAE Half octave analysis. Frequency range 1-6kHzStimulus levels for screening 84dBSPLpe recommended, configurable 60-84dBSPLpeStimulus levels for clinical use configurable 60-84dBSPLpeSimilar. The OtoNova stimulus frequency rangeare the same as the predicate device. Bothpredicate and subject devices cover the mostcommonly used and validate stimlus levels . TheOtoNova screening settings do not providestimulus levels no longer judged appropriate forscreening, but these are available on the clinicalmode.
AutomaticscreeningdecisionsIn screening mode OtoNova automatically provides an on screen 'Pass, Referor invalid test result', plus indications of the reason for test invalidity.In screening mode Otoport OAE+ABR automatically provides an onscreen 'Pass, Refer or invalid test' result, plus indications of the reasonfor test invalidity.Same
Stimuluscalibrationwith inserted probe - In-the-ear self calibrationFor AABR with ear-cup, stimulus is preset to dial level.with inserted probe - In-the-ear self calibrationFor AABR with ear-cup, stimulus is preset to dial level.Same
DeviceComponents /FeaturesStimulates the ear with either transient or tonal sounds via an insertedearpieceStimulates the ear with either transient or tonal sounds via an insertedearpieceSame
Registers interfering acoustic noise and advises users when this is too largefor testing to take place.Registers interfering acoustic noise and advises users when this is too largefor testing to take place.
Implements otoacoustic emission technology to record TEOAE and DPOAEsresponses to sound applied via an inserted earpiece (probe)Implements otoacoustic emission technology to record TEOAE and DPOAEsresponses to sound applied via an inserted earpiece (probe)
Provides an intensity and frequency analysis of the OAE response,numerically and graphicallyProvides an intensity and frequency analysis of the OAE response,numerically and graphically
Automatically determines and displays the presence or absence of a normalTEOAE or DPOAE responseAutomatically determines and displays the presence or absence of a normalTEOAE or DPOAE response
Implements auditory brainstem response (ABR) technology to record electrophysiological responses via surface electrodesImplements auditory brainstem response (ABR) technology to record electrophysiological responses via surface electrodes
Stimulates the ear for ABR screening at 30,35,40,or 45dBnHLStimulates the ear for ABR screening at 30,35,40,or 45dBnHL
Registers interfering electrical noise and advises users when this is too largefor testing to take place.Registers interfering electrical noise and advises users when this is too largefor testing to take place.
Registers the electrical impedance of electrode connections to the patientand advises users when this is too large for testing to take placeRegisters the electrical impedance of electrode connections to the patientand advises users when this is too large for testing to take place
Performs statistical analysis on the ABR response to decide if it is presentand normalPerforms statistical analysis on the ABR response to decide if it is presentand normal
Automatically determines and displays the presence or absence of a normalABR responseAutomatically determines and displays the presence or absence of a normalABR response
Serves as a hearing based on the presence or absence of a normal OAE orABR responseServes as a hearing based on the presence or absence of a normal OAE orABR response
PopulationOAEs Infant, child and adult, AABR, infantOAEs Infant and adult, AABR, infantSame
Intended userTrained screener and professionalsTrained screener and professionalsSame
SafetycharacteristicsElectrically isolated. Acoustic stimulation levels physically constrained andmonitored with active protection against single faults.Electrically isolated. Acoustic stimulation levels physically constrained andmonitored with active protection against single faults.Same
Probe: plastic encapsulated insert earphone containing microphone andreceiver, fitted with disposable single use plastic tip both as used with thepredicate.Probe: plastic encapsulated insert earphone containing microphone andreceiver, fitted with disposable single use plastic tipSame
Surface, disposable self-adhesive skin electrodesSurface, disposable self-adhesive skin electrodesSame
Materials ofConstructionElectronic circuitry providing stimulation drive to the probe, amplificationfor the signals, received from the probe microphone and electrodes, signalprocessing for response enhancement and noise rejection andmicroprocessor for signal and statistical analysis, rechargeable battery,m=power managment, LEDs to indicate states, bluetooth communicationmodules for reception of commands form the conrolling computer and thetransmission of processed test data to the conrolling devce all encapsulatein a plastic housing,Electronic circuitry providing stimulation drive to the probe, amplificationfor the signals, received from the probe microphone and electrodes, signalprocessing for response enhancement and noise rejection andmicroprocessor for signal and statistical analysis, rechargeable battery,power managment, graphic display unit and data input keypad, andbluetooth module for tramission of test data to third party computer allencapsulated in a plasticSimilar. All devices have similar circuits andfirmware providing the testing functions. Thedifferences are that in the subject devicebluetooth communication is two way and isupdated during testing, whereas it is one way inthe predicate device and it post test.Also the subject device hardware does notinclude a data input keypad or a graphic displayas this is provided by the controlling device.D37
SterileNoNosame
Duration ofplacementLess than 5 minutes per earLess than 5 minutes per earsame
Usage ofPatient contactitemsAcoustic probe tip and electrodes are single patient use only as used on thepredicate deviceAcoustic probe tip and electrodes are single patient use onlysame
Electrode,number andAnatomicalplacementScalp, forehead, nape, shoulderScalp, forehead, nape, shouldersame
Number ofElectrodes33same
ElectrodeSocketConnectorOtoNova: Three Single Pin electrode Socket Connectors, compatible with DIN42-802 Type ST 'Touchproof' terminated electrode cablesOtoNova Pro: One 4 Pin Plug & Sock+B34et Connector and is compatiblelwith the supplied combined electrode cable.Otoport OAE+ABR has three Single Pin electrode Socket Connectors,compatible with DIN 42-802 Type ST 'Touchproof' terminated electrodecablesSimilar. The OtoNova and the predicate deviceare similar in their use of three single electrodepin plugs and socket connectors.The exact sameelectrode cables and electrodes are used inOtoNova and predicate Otoport ABR.The OtoNova Pro uses a 4 pin plug and socketconnector- combining 3 electrode connectionsand an electrical interference screen.The 4 pin single electrode cable socket of theOtoNova Pro provides a simpler method ofconnection for the user and incorrectconnections are eliminated.In the OtoNova basic version incorrect electrodewires montage is mitigated by clear color codingof the electrode cables and sockets. Thischange in connector on OtoNova Pro affords lessparts/ with easier use while the functionalityremains the same and the residual user risksremain low/ are acceptable.D42
BatteryLithium-ion BatteryLithium-ion BatterySame
Battery voltageoperatingrange:3.2-4.2V3.2-4.2VSame
SourceSource: 1000mAh lithium polymer internal rechargeable cellsSource: 1000mAh lithium polymer internal rechargeable cellsSame
Electrode CableOtoNova: compatible with DIN 42-802 Type ST 'Touchproof' terminatedelectrode cables - with snap electrode connectors.OtoNova Pro: Supplied 3 electrode combination cable with snap connectorscompatible with DIN 42-802 Type ST 'Touchproof' terminated electrodecables with snap elelctroc connectorsOtoNova:SameOtoNova Pro:similar, with the added simplicity ofa single connection for the 3 electrodes
ProbeConnector(14 pin) 'Medi-Snap' connector push pull connector(8 pin) 'Triad' connector metal collar to screw lock in placeSimilar. The probe connector for the subjectdevice is a 14 pin "Medi-Snap" connector whilethe predicate device uses an 8 pin "Triad"connector. The addition 8 pins of the Medi-Snapconnector are note currently used.The OtoNova / OtoNova Pro UPD and UPSprobes are equivalent with legacy probes ofpredicate Otoport OAE+ABR which have been inservice for 20+years. The only difference is theconnectors.The Medi-Snap probe connector of the OtoNova
serves the same purpose is the Triad connectorof the preducate but its insertion and removalare mechanically different. Instead of a screwedcollar locking method, the Medi -Snap features aPush-in- Pull-out mechanism with adequateretention when in. This provides an easier userexperience and reduces risk of connector pindamage by mishandling. Connector damage
ProbesOtoNova and OtoNova Pro accept UPS, UPD probesOtoNova Pro is additionally compatible with Otodynamics XPD probes andcan accept two probes.All compatable probes include a chip containing calibration data.Otoport OAE+ABR accepts UGS, UGD, and XGD probesAll compatable probes include a chip containing calibration data.Similar. The OtoNova Pro is compatible with allOtodynamics probes which the predicateOtoport devices are compatible if fitted with aMedi-Snap connector or via a connector adaptorOtoNova (not pro) does not recognise the XPDprobe because it has a differently structuredcalibration chipOtoNova and OtoNova Pro probes have adifferent 'push pull' connector than predicateOtoport probes but are acoustically andmechanically identically. This connectordifference is indicated by the 'P' in their name eg
Number ofProbesConnectedOtoNova - 1 probeOtoNova Pro 2 probesThe Otoport OAE+ABR can operate with one probe or two probes with thebinaural optionThe subject and predicate base models (OtoNovaand Otoport) are similar while the OtoNova Proand Otoport OAE+ABR can similarly accept twoprobes
DeviceComponents /FeaturesA handheld battery powered hearing screening device which is wirelesslycontrolled (Bluetooth) by an Android or Windows PC device to display andcommunicate processed real time data.A handheld battery powered hearing screening device with integral keypadand display which shows processed real time dataSimilar. The OtoNova controlling processorprovides all the functionality of the Otoportinterface, but on a larger screen with theconvenience of touch screen function.The wireless connection between the OtoNovacontroller device running Nova-Link softwareand the OtoNova test hardware gives greaterfreedom to the operator, better positioningthemselves relative to the patient. The residualusers risks are found to be low/ are acceptable.
User InterfaceThe OtoNova's 'Novalink' software runs on the selected controlling deviceand provides complete user control over the OtoNova testing hardware.Nova-Link displays test progress, test results, and saves tests in the in-builtdatabase.Optionally, Novalink database contents can be securely transferred toOtodynamics Otolink software for review, printing or archiving. Novalink isinstalled from Google play for Android devices or from Microsoft Store forPC devices"The Otoport preinstalled software provide complete user control over thetesting hardware inside the Otoport and displays test progress, test results,and tests saved in the in-built database.Optionally, Otoport database contents can be securely transferred toOtodynamics Otolink software for review, printing or archiving.Otoport firmware can be securely updated from Otolink"Similar. There are no significant functionaldifferences for the user between the OtoNovacontrol program Nova-Link and Otoport built incontrol software.Differences are cosmetic, and ergonomic -resulting form the larger display screen, touchscreen controll and large storage capacitybecause of access to the controlling deviceprocessor and memory
Data TransferOtoNova and OtoNova Pro test devices transfer processed test data to thethird party controlling computer device wirelessly via bluetooth (4.2) as thetest progresses. The controlling devide also commands the test device viabluetooth.Otoport OAE+ABR can transfer completed and saved test records to a thirdparty computer either wirelessly via bluetooth (2.0), or via a wired USB1.1or 2.0 connectionSimilar. The subject and predicate both useBluetooth to tranfer processed test databetween test and computer devices. Whereas thepredication only transfered completed and filestest records, the subject device uses bluetooth tocommand the testing device as well as to recieveprocessed test results from the test device astesting progresses. Bluetooth 4.2 is more robustthan bluetooth 2. The OtoNova devices do nothave a USB port. The controling device will haveUSB which can be used to securely transfer filedtest records to a PC.
Chargingcompatible with wireless chargers (transmitters) meeting WPC Qi standardv1.1 or v1.2Charging is via a charging/data connector on the device - which connects toOtodynamics PSU (charging) or to PC USB port (USB 1.1or 2.0) via a DataCable.Equivalent. The wireless charging of the OtoNovais advantageous because it requires no electricalconnection of the device. This enhances itscleanability.
Power StatesIntelligent multi-level power control forcharging/testing/idle/sleepIntelligent multi-level power control forcharging/testing/idle/sleep/shutdownSimilar. The power states of OtoNova areidentical to the Otoport except for the renamingof 'shutdown' (predicate) as Flight Mode(subject).When the subject sleeps detects physicalmovement and then actively searches for its hostcontroller by bluetooth advertising information.For air transported this function must bedisabled. The shutsdown state is named'FlightMode' to make this clear. It is notnecessary for the OtoNova to be toally powereddown at any other time as the sleep mode cansustain operational battery charge for more thanone month.
Charge Time3.5 Hrs to 100%4 Hrs to 100%Similar. The subject device has a slightly shorterbattery charging time at 3.5 hours versus thepredicate device's 4 hours. This is advantageousfor the user. The battery usage time of OtoNovais many times that of the predicate devicebecause it does nothave to power a displayscreen.
Maxconsumptionwhen testing:0.5W1WSimilar. The subject device uses less power thanthe predicate Otoport (0.5W vs 1W) because it isnot powering an LCD display, which thepredicate Otoport has.
Maxconsumptionwhen charging:2.5W2.5WSame

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Summary of Non-Clinical testing

The OtoNova and OtoNova Pro use the same DSP firmware algorithms and amplifier circuitry as the predicate Otoport device and are designed to provide the same stimulations and register the same responses in the same conditions. This functional equivalence was verified by bench tests that compared the stimuli delivered and the response recorded by the 3 devices. OtoNova and OtoNova Pro are operated from a tablet controlling device running Nova-Link software. The Otoport is a self -contained test device with its own firmware.

For each device the electrical driving signals delivered by the stimulator 'probe' transducers during testing were measured on subject and predicate devices using calibrated equipment for each testing mode (i.e. TEOAE DPOAE and ABR) and compared. They were found to be substantially the same (to within 1dB) across the functional frequency range.

The acoustic stimulation delivered by the probe into a standard calibrated acoustic ear simulator was recorded for subject and predicate devices for each test mode (TEOAE, DPOAE, ABR) and also for ABR test stimulation in the 'earcup' stimulus delivery device. They were found to be substantially the same (to within 1dB) across the functional frequency range.

The sensitivity of each device to simulated DPOAE, TEOAE and ABR responses was recorded by fitting the probe and electrodes to Otodynamics' factory-reference 'response simulator'. Each device received the same simulated response signals. The responses recorded by the OtoNova Pro were substantially the same levels (within 1dB) across the functional frequency for OAEs, and the ABR recorded had substantially the same size and waveform for ABR (within 1dB).

Summary of Clinical testing

The operational equivalence of OtoNova Pro and predicate Otoport OAE+ABR devices was verified from data collected from 20 volunteer adult subjects with informed consent , under identical test conditions. The purpose of the trial to the compare physiological response measurement capacity and algorithms of the OtoNova and Otoport devices. Each subject was tested on each device with DPOAE, TEOAE or AABR, in the same session, with the same probe fitting (and electrode fitting for AABR), under the same test conditions. For each test mode data was recorded from a minimum 15 subjects from each device in the same session.

  • a. OtoNova's Nova-Link gives same screening test result under the same screening criteria (i.e. clear response, no clear response, invalid result) as the predicate device. The physical characteristics of the recorded responses were similar on each device. In the case of marginal response levels, where variability is to be expected, the range of marginality was no wider than for the Otoport OAE+ABR.
  • b. In the recording of OAE response for clinical purposes the OtoNova and OtoNova Pro the reported response levels were the same across frequency as with the Otoport OAE +ABR device within the tolerance expected due to subject movement.
  • The reported noise levels reported by Novalink were similar to those reported by the Otoport C. within the expected intrinsic variability of noise.

Based on the close agreement of the clinical test results obtained, and the equivalence of all the physical measurement characteristics of the devices as demonstrated in bench tests, on which the intended infant screening use solely depends, it is concluded that OtoNova Pro devices have the same efficacy

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as the predicate device across all applications, including for infant screening.

Human Factors/ Usability Engineering Testing

The Human Factor (HF) engineering process applied to the OtoNova devices has been in accordance with ANSI/AAMI HE75:2009 Human factors Engineering – Design of medical devices and FDA Guidance Applying Human Factors and Usability Engineering to Medical Devices, Guidance for Industry and Food and Drug Administration Staff, issued February 3, 2016 and IEC 62366-1 Edition 1.0 2015-02.

A summative usability validation study was conducted with 16 participants external to Otodynamics. The study participants were asked to operate the device, run tests and provide user summative evaluation of the OtoNova medical device. The OtoNova simulated users, used only the OtoNova Quick Start guide- an essential OtoNova testing abbreviated IFU, the OtoNova IFU in case they needed further information, and the OtoNova device/ system items.

All the 16 users were able to sufficiently understand the OtoNova product/ IFU, to successfully record tests and use the medical device per its intended use, using only the instructions provided, the OtoNova product and items and the OtoNova User Manual. There were no substantial issues found during this OtoNova summative evaluation. The issues found were not substantial, and improvements were implemented.

User Manual

Improvements and changes to the OtoNova/Otonova Pro IFUs were made throughout the device's development and IFU change histories based on human factors testing data. Subsequently no substantial issues were found during further OtoNova Pro IFU summative evaluations or clinical applications.

Summative use evaluation for the user, patient and the environment concluded that the remaining residual risks are acceptable and that OtoNova as safe and effective as the predicate Otoport OAE+ABR device.

Biocompatibility Testing

The biocompatibility evaluation for the OtoNova Device was conducted in accordance with the FDA Guidance Use of International Standard ISO 10993-1, "Biological evaluation of medical devices - Part 1: Evaluation and testing within a risk management process" issued September 4, 2023, and International Standard ISO 10993-1 "Biological Evaluation of Medical Devices – Part 1: Evaluation and Testing Within a Risk Management Process," FDA recognition number 258.

When used as intended, the OtoNova device will be placed in transient contact with the user's skin during handling and Normal Use; the patient's total cumulative exposure of the device is expected to be < 10 Minutes. The OtoNova device is therefore categorized according to ISO 10993-1 Fifth Edition 2020-08 as surface contacting devices that contact intact skin surfaces only.

Biological considerations for this categorization have included the following tests:

  • . Cytotoxicity,
  • Sensitization, and
  • . Irritation or intracutaneous reactivity.

As such evaluation has been compliance with the requirements of ISO 10993-5:2009-06-1 & ISO 10993-10:2010-08-01.

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Cleaning Validation

The OtoNova Device cleaning processes identified in the product's Instructions for Use have been tested and validated and confirmed as appropriate when considering the intended purpose of the product.

This is to demonstrate that:

  • The risks posed by contaminants and residues to the persons involved in the use of the device have been minimized.
  • . That the product has been designed and manufactured in such a way that it can be used safely with the materials and substances with which it will enter into contact during normal use; and,
  • The manufacturing process is designed in such a way as to eliminate or reduce as far as possible the risk of infection to the User/patient.

A representative sample of the OtoNova device was acquired for testing along with production-equivalent label.

Electrical safety and electromagnetic compatibility (EMC)

Both electrical safety and EMC testing have been conducted on the OtoNova Device. The system complies with ANS/AAM//EC ES60601-1:2005/(R)2012 and A1:2012 for basic safety and essential performance of medical electrical equipment.

The electromagnetic compatibility of the system has been confirmed through third-party testing to collateral standard IEC 60601-1-2 Edition 4.0 2014-02.

Software Verification and Validation Testing

Software verification and validation testing has been conducted in compliance with IEC 62304 Edition 1.1 2015-06 (which is the principal normative standard applied), ANSI/AAMI/IEC ES60601-1:2005/(R)2012 and A1:2012 and the FDA guidance documents "General Principles of Software Validation; Final Guidance for Industry and FDA Staff" (11-Jan-2002) and "FDA Guidance for the Content of Premarket Submissions for Device Software Functions" (14-June-2023).

Cybersecurity

lssues regarding cybersecurity are included at all appropriate phases of the development process. Cybersecurity is addressed in the Software Risk mitigation measures against cybersecurity risks are incorporated into the software requirements specifications.

CONCLUSIONS

The OtoNova Device has the same intended use as the predicate device.

Both the OtoNova and OtoNova Pro models are substantially equivalent to the Otoport/ Otocheck OAE+ABR predicate devices with respect to overall device functions and features.

Functional bench testing supported the electronic and acoustic equivalence of the subject and predicate devices, showing no significant impact on device function.

Clinical measurements supported the substantial equivalence of the audiological performance of the subject and predicate.

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The primary technological differences are a result of the OtoNova device extending the use of Bluetooth technology, which already existing in the predicate device to achieve wireless control of the testing process, on a controlling processor with superior display capabilities.

Useability testing demonstrated that the ergonomic and dimensional differences do not negate the substantial equivalency of the subject device with the predicate on a clinical, biological and technological basis.

The non-clinical testing has supported the safety and functionality of the device. The device is substantially equivalent to the predicate.

§ 874.1050 Audiometer.

(a)
Identification. An audiometer or automated audiometer is an electroacoustic device that produces controlled levels of test tones and signals intended for use in conducting diagnostic hearing evaluations and assisting in the diagnosis of possible otologic disorders.(b)
Classification. Class II. Except for the otoacoustic emission device, the device is exempt from the premarket notification procedures in subpart E of part 807 of this chapter, if it is in compliance with American National Standard Institute S3.6-1996, “Specification for Audiometers,” and subject to the limitations in § 874.9.