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510(k) Data Aggregation

    K Number
    K153060
    Manufacturer
    Date Cleared
    2015-11-10

    (20 days)

    Product Code
    Regulation Number
    872.1800
    Reference & Predicate Devices
    Why did this record match?
    Device Name :

    Digital Dental Intra Oral Sensor, EzSensor Classic, EzSensor HD, HDI-P, HDI-S

    AI/MLSaMDIVD (In Vitro Diagnostic)TherapeuticDiagnosticis PCCP AuthorizedThirdpartyExpeditedreview
    Intended Use

    Digital Dental Intra Oral Sensor is intended to collect dental x-ray photons and convert them into electronic impulses that may be stored, viewed and manipulated for diagnostic use by dentists.

    Device Description

    Digital Dental Intra Oral Sensor is a device which acquires digital intra-oral images. Direct digital systems acquire images with a sensor that is connected to a computer to produce an image almost instantaneously following exposure. The primary advantage of direct sensor systems is the speed with which images are acquired. For patient comfort, the ergonomic design is based on human intraoral anatomy.

    • Excellent image quality based on advanced CMOS technology
    • More comfortable sensor ergonomic shape for the human oral structure
    • Lower dose exposure (Compared to film sensor)
    • Enhanced durability
    • Easy-to-use USB interface
    AI/ML Overview

    The provided document is a 510(k) summary for the Rayence Co., Ltd. Digital Dental Intra Oral Sensor. This type of submission focuses on demonstrating substantial equivalence to a predicate device rather than providing detailed clinical study results designed to prove device performance against specific acceptance criteria.

    Therefore, the document does not contain the information requested for acceptance criteria and a study proving the device meets those criteria in the typical sense of a clinical trial. Instead, it relies on demonstrating similar performance to a legally marketed predicate device through non-clinical testing.

    Here's what can be extracted and what is missing based on your request:

    1. Table of Acceptance Criteria and Reported Device Performance

    The document measures performance characteristics like DQE, MTF, Pixel Pitch, and Sensor Dimensions against those of a predicate device. It doesn't explicitly state "acceptance criteria" but rather demonstrates "equivalence" to the predicate.

    CharacteristicAcceptance Criteria (Implicit: Equivalent to Predicate)Reported Device Performance (Proposed Device)Predicate Device Performance
    Sensor Dimension (mm) (±10%)Equivalent to Predicate or justified differencesSize 1.0: 36.8 x 25.4
    Size 1.5: 39.5 x 29.2
    Size 2.0: 42.9 x 31.3Size 1.0: 37.6 x 25.4
    Size 1.5: 39.5 x 29.2
    Sensor Thickness (mm)Equivalent to Predicate4.84.8
    Active Area (mm)Equivalent to Predicate or justified differencesSize 1.0: 30.01 x 20.01
    Size 1.5: 33.00 x 23.98
    Size 2.0: 35.99 x 25.99Size 1.0: 30.01 x 20.00
    Size 1.5: 33.00 x 23.98
    Pixel Pitch (µm) (Full Resolution)Equivalent to Predicate14.814.8
    Pixel Pitch (µm) (Binning mode)Equivalent to Predicate29.629.6
    DQE (6 lp/mm) (Full Resolution)Equivalent to Predicate0.380.38
    DQE (6 lp/mm) (Binning mode)Equivalent to Predicate0.340.34
    MTF (3 lp/mm) (Full Resolution)Equivalent to Predicate0.6420.642
    MTF (3 lp/mm) (Binning mode)Equivalent to Predicate0.6300.630
    Electrical, Mechanical, Environmental SafetyCompliance with IEC 60601-1: 2005 + CORR.1(2006) + CORR(2007)Performed and Compliant(Not explicitly stated for predicate in summary, but assumed compliant)
    EMC TestingCompliance with IEC 60601-1-2:2007Performed and Compliant(Not explicitly stated for predicate in summary, but assumed compliant)
    Dynamic RangeSame as predicate deviceSame dynamic range(Not explicitly stated with a value, but equivalence claimed)

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

    • The document explicitly states: "Clinical images were not necessary to establish substantial equivalence based on the modifications to the device. The laboratory performance data shows that the subject device operates similar to the predicate device." Therefore, there was no clinical test set in the traditional sense with human patient data.
    • The comparison was done with laboratory performance data. The provenance of this laboratory data (e.g., specific lab, country) is not detailed. It's an internal test report.

    3. Number of experts used to establish the ground truth for the test set and the qualifications of those experts:

    • Not applicable, as no clinical test set with human data and expert ground truth was used.

    4. Adjudication method (e.g., 2+1, 3+1, none) for the test set:

    • Not applicable, as no clinical test set with human data and associated adjudication was used.

    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:

    • No MRMC study was done, nor is this device described as an AI-assisted device. The device is a digital intra-oral sensor for image acquisition.

    6. If a standalone (i.e. algorithm only without human-in-the-loop performance) was done:

    • The device itself is a standalone hardware component (sensor). The "performance" being evaluated is its technical characteristics (DQE, MTF, etc.) demonstrating equivalence to a predicate, not an algorithmic diagnostic output. The document states that "The DQE, MTF and linear response to X-ray exposure test demonstrated that the subject sensor performed equivalently compared to the predicate device with the same dynamic range." This is a standalone device performance evaluation, but not in the context of an AI algorithm's diagnostic accuracy.

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

    • Not applicable, as the evaluation was based on non-clinical, laboratory performance measurements (e.g., DQE, MTF values, physical dimensions) compared to a predicate device's specifications. The ground truth for these measurements would be the reference standards and protocols used in the laboratory setting to measure these physical properties.

    8. The sample size for the training set:

    • Not applicable. This is a 510(k) submission for a hardware device (digital x-ray sensor) demonstrating substantial equivalence to a predicate through non-clinical bench testing. It does not involve machine learning or AI models with training sets.

    9. How the ground truth for the training set was established:

    • Not applicable, as there is no training set for an AI model mentioned.
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