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510(k) Data Aggregation
(413 days)
The Fundus Photo Digital Imaging System Model CFD-440 Model is intended to capture, archive, and display digital images of the retina and surrounding areas of the eye.
The Fundus Photo Digital Imaging System Model CFD-440 is an automated imaging device used in conjunction with an ophthalmic fundus camera that requires minimal intervention during the capture of an image. The system is simple to use and requires nominal training for a user to become proficient. Like the predicate device, the Fundus Photo Digital Imaging System Model CFD-440 is an accessory attachment comprised of a digital imaging camera or cameras, computer hardware and software platform intended to capture, store, archive, and display images acquired by the fundus camera.
The provided text describes the Fundus Photo Digital Imaging System Model CFD-440, a device intended to capture, archive, and display digital images of the retina and surrounding areas of the eye. It is an accessory attachment that works with existing ophthalmic fundus cameras. The 510(k) summary focuses on demonstrating substantial equivalence to a predicate device (Zeta Diagnostic Retinal Imaging System, K02216), rather than detailing specific acceptance criteria in terms of clinical performance metrics for the CFD-440 itself.
The document states: "Fundus Photo has performed software verification, validation and performance tests. The results indicate that the Fundus Photo Digital Imaging System Model CFD-440 is substantially equivalent to the software standards exhibited by the predicate device." However, no specific performance metrics, acceptance criteria, or the details of these performance tests are provided beyond this general statement.
Therefore, many of the requested details about acceptance criteria and the study proving the device meets them cannot be extracted from this document, as the submission focuses on demonstrating equivalence in intended use, principles of operation, and technological characteristics rather than quantitative performance against defined acceptance criteria.
Here's a breakdown of what can and cannot be answered based on the provided text:
1. A table of acceptance criteria and the reported device performance
- Acceptance Criteria: Not explicitly stated in the document in terms of quantitative performance metrics (e.g., resolution, accuracy, sensitivity, specificity). The primary "acceptance criteria" for the 510(k) submission appears to be demonstrating substantial equivalence to the predicate device.
- Reported Device Performance: No specific quantitative performance data is provided. The document states that "software verification, validation and performance tests" were done and "the results indicate that the Fundus Photo Digital Imaging System Model CFD-440 is substantially equivalent to the software standards exhibited by the predicate device."
2. Sample size used for the test set and the data provenance (e.g. country of origin of the data, retrospective or prospective)
- Not specified in the provided text.
3. Number of experts used to establish the ground truth for the test set and the qualifications of those experts (e.g. radiologist with 10 years of experience)
- Not applicable/Not specified as no such test set or ground truth establishment is detailed in the submission.
4. Adjudication method (e.g. 2+1, 3+1, none) for the test set
- Not applicable/Not specified.
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, as this device is a digital imaging system, not an AI or diagnostic aid that assists human readers.
6. If a standalone (i.e. algorithm only without human-in-the loop performance) was done
- Not applicable. The device is an imaging system, not a standalone diagnostic algorithm. Its performance is tied to the images it captures, stores, and displays, which are then interpreted by a human user.
7. The type of ground truth used (expert consensus, pathology, outcomes data, etc.)
- Not applicable/Not specified. The submission focuses on substantial equivalence in function and technical characteristics, not diagnostic accuracy against a ground truth.
8. The sample size for the training set
- Not applicable/Not specified. The device is not an AI/ML algorithm that requires a "training set" in the conventional sense. Its development involved software verification and validation, but not machine learning training.
9. How the ground truth for the training set was established
- Not applicable/Not specified.
In summary, the provided 510(k) submission for the Fundus Photo Digital Imaging System Model CFD-440 is focused on demonstrating substantial equivalence to a predicate device based on intended use, principles of operation, and technological characteristics (hardware and software functions). It does not present detailed performance studies against specific clinical acceptance criteria, nor does it involve aspects like AI algorithms, human-reader studies, or ground truth establishment in the context of diagnostic accuracy.
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(321 days)
Kowa VX-10 is intended for taking pictures of fundus images with mydriatic or without mydriatic.
KOWA VX-10 is a fundus image shooting device which delivers both functions of mydriatic and non-mydriatic, and is capable of shooting with 35mm film, Polaroid film or video camera by replacing the shooting unit in a similar to the predicate devices. The non-mydriatic function uses infrared light as does CANON Cr6-45nm, and alignment and focusing are made from the built-in monitor. A Xenon flash lamp is used for shooting. When mydriatic shooting function is used, visible light is used for observation, and alignment and focusing are made manually by looking into the finder as in FX-500. A Xenon flash lamp is used for shooting. Furthermore, like FX-500, it is capable of fluorescein angiographic fundus shooting.
The provided document is a 510(k) premarket notification for the Kowa VX-10 Fundus Camera. This type of submission focuses on demonstrating substantial equivalence to a legally marketed predicate device, rather than proving that the device meets specific performance acceptance criteria through a clinical study with defined endpoints.
Therefore, the document does not contain the following information:
- A table of acceptance criteria and reported device performance based on a dedicated study.
- Sample sizes used for a test set, data provenance, number of experts for ground truth, or adjudication methods for such a test set.
- Information about a multi-reader multi-case (MRMC) comparative effectiveness study, including effect size.
- Results from a standalone (algorithm only) performance study.
- The type of ground truth used to establish performance metrics (e.g., pathology, outcomes data).
- Sample size for a training set or how ground truth for a training set was established.
Instead, the document focuses on comparing the Kowa VX-10's features, indications for use, and technical specifications to two predicate devices: the CANON Non-Mydriatic Retinal Camera, Model Cr6-45nm, and the KOWA PROFESSIONAL FUNDUS CAMERA MODEL FX-500.
The "study" that proves the Kowa VX-10 meets acceptance criteria, in the context of a 510(k) submission, is a comparison study demonstrating substantial equivalence to predicate devices.
Here's the information derived from the provided text:
1. Table of Acceptance Criteria and Reported Device Performance:
The document does not present explicit "acceptance criteria" in terms of performance metrics (like sensitivity, specificity, accuracy) but rather a comparison of technical specifications and features against predicate devices. The "reported device performance" is essentially that its features and functions are equivalent or superior to the predicates.
| Feature / Criteria | Kowa VX-10 (Reported Performance) | Non-Mydriatic Retinal Camera, Model Cr6-45nm (Predicate 1) | Kowa Professional Fundus Camera Model FX-500 (Predicate 2) |
|---|---|---|---|
| Indications For Use | Taking pictures of fundus images with or without mydriatic. | Taking pictures of retina of human eye without mydriatic. | Taking pictures of eye with mydriatic. |
| Picture Magnifications | Mydriatic: 50° /25°Non-mydriatic:45° /22° | Non-mydriatic: 45° /30° | Mydriatic: 50° /35° |
| Working Distance | 39 mm | 45 mm | 38 mm |
| CCD camera for observation | Same as the Cr6-45nm (Monochrome CCD) | Monochrome CCD | None |
| Record Media | Same as both (35mm film / Polaroid film) | 35mm film / Polaroid film | 35mm film / Polaroid film |
| Video camera connect ability | Same as the Cr6-45nm (Yes) | Yes | No |
| Observation System | Mydriatic: Same as the Fx-500 (Optical finder)Non-mydriatic: LCD | CRT | Optical finder |
| Dioptric Compensation | -32D ~ +35D | -33D ~ +35D | -25D ~ +45D |
| Focusing | Same as the Cr6-45nm (By aligning the split lines) | By aligning the split lines | By focusing two oscillating points |
| Filter for FA | Present | Not present | Present |
| Observation Light Source | Same as the FX-500 (Halogen lamp 50W) | Halogen lamp 75W | Halogen lamp 50W |
| Photographing Light Source | Same as both (Xenon flash lamp 300WS) | Xenon flash lamp 300WS | Xenon flash lamp 300WS |
| Safety | Equivalent to that of the predicate devices. | Demonstrated safety as a cleared device | Demonstrated safety as a cleared device |
| Fundamental Technology | Equivalent to the predicate devices. | Fundamental technology for an ophthalmic camera | Fundamental technology for an ophthalmic camera |
| Basic Functions | No difference in basic functions compared to predicate devices. | Capable of non-mydriatic fundus imaging | Capable of mydriatic and fluorescein angiographic fundus imaging |
| Additional Functionality | "narrow mode" for more detailed shooting. (Narrower than predicates) | Standard image shooting magnifications | Standard image shooting magnifications |
2. Sample size used for the test set and the data provenance:
- Not Applicable. This document describes a 510(k) submission, which relies on demonstrating substantial equivalence to pre-existing devices based on features, specifications, and intended use, rather than a clinical performance study with a test set of patient data.
3. Number of experts used to establish the ground truth for the test set and the qualifications of those experts:
- Not Applicable. See point 2.
4. Adjudication method (e.g. 2+1, 3+1, none) for the test set:
- Not Applicable. See point 2.
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. This device is a fundus camera, which is an imaging acquisition device, not an AI-powered diagnostic tool requiring MRMC studies for human reader improvement.
6. If a standalone (i.e. algorithm only, without human-in-the-loop performance) was done:
- No. This device is a hardware imaging device, not an algorithm.
7. The type of ground truth used (expert consensus, pathology, outcomes data, etc.):
- Not Applicable. The "ground truth" for this submission is the established safety and effectiveness of the predicate devices, which the Kowa VX-10 is aiming to be substantially equivalent to.
8. The sample size for the training set:
- Not Applicable. This is a hardware device; there is no "training set" in the context of machine learning.
9. How the ground truth for the training set was established:
- Not Applicable. See point 8.
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