(152 days)
The Nihon Kohden TG-901T CO2 Sensor is intended for medical purposes to measure the concentration of carbon dioxide in a gas mixture to aid in determining the patient's ventilatory status. The device is intended as an indicator of patient carbon dioxide concentration during expiration and is not intended as the sole basis for medical diagnosis.
The Nihon Kohden CO2 Sensor Kit, model number TG-901T, is intended for medical purposes to measure the concentration of carbon dioxide in a gas mixture to aid in determining the patient's ventilatory status. The device is intended as an indicator of patient carbon dioxide concentration during expiration and is not intended as the sole basis for medical diagnosis.
The provided text for the Nihon Kohden TG-901T CO2 Sensor Kit does not contain a detailed study proving the device meets specific acceptance criteria in the manner requested.
The 510(k) summary focuses on establishing substantial equivalence to a predicate device (OLG-1100A PocketCap CO2 Monitor) rather than presenting a performance study with defined acceptance criteria for the new device.
Here's a breakdown of what can and cannot be extracted from the given text based on your request:
1. A table of acceptance criteria and the reported device performance
- Cannot be provided. The document states: "To date, no performance standards or special controls are known or established for this device as required by Section 514 of the Food, Drug and Cosmetic Act and implemented by 21 CFR Part 861."
- It mentions "electromagnetic, environmental, safety and performance testing procedures" were done and "verified the operation of the device," but no specific acceptance criteria or performance results (e.g., accuracy, precision, bias) are reported.
2. Sample sized used for the test set and the data provenance (e.g. country of origin of the data, retrospective or prospective)
- Cannot be provided. The document does not describe a clinical or performance test set with sample sizes, data provenance, or study design (retrospective/prospective).
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)
- Cannot be provided. No information on experts or ground truth establishment is present as no specific test set is described.
4. Adjudication method (e.g. 2+1, 3+1, none) for the test set
- Cannot be provided. No adjudication method is mentioned as there's no described test set requiring it.
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
- Cannot be provided. This device is a CO2 sensor, not an AI-assisted diagnostic tool. Therefore, an MRMC study or AI-related metrics are not applicable.
6. If a standalone (i.e. algorithm only without human-in-the-loop performance) was done
- Cannot be provided. The device is a sensor, not an algorithm in the context of typical standalone AI performance. Its "performance" would relate to its measurement accuracy, which is not detailed.
7. The type of ground truth used (expert concensus, pathology, outcomes data, etc)
- Cannot be provided. No ground truth type is mentioned as no specific performance study is detailed with an associated ground truth. For a CO2 sensor, the "ground truth" for performance testing would typically be accurate measurements from a reference standard gas analyzer.
8. The sample size for the training set
- Cannot be provided. This is not an AI/machine learning device, so the concept of a "training set" in that context does not apply.
9. How the ground truth for the training set was established
- Cannot be provided. See point 8.
Summary of available information regarding performance:
The document states:
- "The TG-901T was subject to electromagnetic, environmental, safety and performance testing procedures. These tests verified the operation of the device."
- The device is intended "to measure the concentration of carbon dioxide in a gas mixture to aid in determining the patient's ventilatory status."
- "The device is intended as an indicator of patient carbon dioxide concentration during expiration and is not intended as the sole basis for medical diagnosis."
- It is intended for "patients of ages three (3) years and older."
- "This device is not recommended for patients with low tidal volume such as patients younger than three (3) years of age or weighing less 22 pounds or patients with a respiration rate greater than or equal to 60 breaths per minute."
Conclusion:
The provided 510(k) summary for the Nihon Kohden TG-901T CO2 Sensor Kit serves the purpose of demonstrating substantial equivalence for regulatory approval. It does not include the type of detailed performance study data, acceptance criteria, sample sizes, or ground truth information typically found for devices requiring a more comprehensive clinical or standalone validation. The focus is on verifying operation and adherence to general safety and performance testing, rather than reporting quantitative performance against specific acceptance metrics.
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NIHON KOHDEN January 7, 1999
510(k) NOTIFICATION TG-901T CO2 Sensor Kit
SECTION 2 - 510(K) SUMMARY
Name and Address of Applicant Nihon Kohden America, Inc. Attn: Regulatory Affairs 2601 Campus Drive Irvine, California 92612-1601
Nihon Kohden Corporation 31-4 Nishiochiai, 1-Chome Shinjuku-ku, Tokyo, 161 Japan
The TG-901T CQ2 Sensor Kit is classified as Class II by the Division of Anesthesiology Devices and the Anesthesiology Device Classification Panel under 21 CFR Part 868.1400 "Analyzer, Gas, Carbon dioxide, Gaseous-phase" as per part 73 CCK.
Common names for the TG-901T CO2 Sensor Kit include CO2 Analyzer and CO2 Indicator.
The predicate device is the OLG-1100A PocketCap CO2 Monitor per 510(k) # K964305, commercial distribution certification dated February 19, 1997.
The Nihon Kohden CO2 Sensor Kit, model number TG-901T, is intended for medical purposes to measure the concentration of carbon dioxide in a gas mixture to aid in determining the patient's ventilatory status. The device is intended as an indicator of patient carbon dioxide concentration during expiration and is not intended as the sole basis for medical diagnosis. This device is intended for use with patients of ages three (3) years and older. This device is not recommended for patients with low tidal volume such as patients younger than three (3) years of age or weighing less 22 pounds or patients with a respiration rate greater than or equal to 60 breaths per minute.
To date, no performance standards or special controls are known or established for this device as required by Section 514 of the Food, Drug and Cosmetic Act and implemented by 21 CFR Part 861.
The TG-901T is not intended to be sterile.
The TG-901T was subject to electromagnetic, environmental, safety and performance testing procedures. These tests verified the operation of the device.
Therefore, based on the above, Nihon Kohden believes that the TG-901T CO2 Sensor Kit is substantially equivalent to the OLG-1100A Pocket CO2 Monitor.
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Public Health Service
Food and Drug Administration 9200 Corporate Boulevard Rockville MD 20850
JUN d 1999
Mr. Gary Reasoner Director of Program Operations Nihon Kohden 2601 Campus Drive Irvine, CA 92612
K990063/S1 Re: Nihon Kohden TG-901T CO, Sensor Kit With Accessories Requlatory Class: II (two) Product Code: CCK Dated: April 19, 1999 Received: April 20, 1999
Dear Mr. Reasoner:
We have reviewed your Section 510(k) notification of intent to market the device referenced above and we 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 (Act). You may, therefore, market the device, subject to the general controls provisions of the Act. 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.
If your device is classified (see above) into either class II (Special Controls) or class III (Premarket Approval), it may be subject to such additional controls. Existing major regulations affecting your device can be found in the Code of Federal Requlations, Title 21, Parts 800 to A substantially equivalent determination assumes compliance with 895. the Current Good Manufacturing Practice requirements, as set forth in the Quality System Regulation (QS) for Medical Devices: General regulation (21 CFR Part 820) and that, through periodic QS inspections, the Food and
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Drug Administration (FDA) will verify such assumptions. Failure to comply with the GMP regulation may result in regulatory action. In addition, FDA may publish further announcements concerning your device in the Federal Register. Please note: this response to your premarket notification submission does not affect any obligation you might have under sections 531 through 542 of the Act for devices under the Electronic Product Radiation Control provisions, or other Federal laws or requlations.
This letter will allow you to begin marketing your device as described in your 510(k) premarket notification. The FDA finding of substantial equivalence of your device to a legally marketed predicate device results in a classification for your device and thus, permits your device to proceed to the market.
If you desire specific advice for your device on our labeling regulation (21 CFR Part 801 and additionally 809.10 for in vitro diagnostic devices), please contact the Office of Compliance at (301) 594-4648. Additionally, for questions on the promotion and advertising of your device, please contact the Office of Compliance at (301) 594-4639. Also, please note the requlation entitled, "Misbranding by reference to premarket notification" (21CFR 807.97). Other qeneral information on your responsibilities under the Act may be obtained from the Division of Small Manufacturers Assistance at its toll-free number (800) 638-2041 or (301) 443-6597 or at its Internet address "http://www.fda.gov/cdrh/dsma/dsmamain.html".
Sincerely yours,
Atl. A. Ciarkowski
. Thomas J. Callahan, Ph.D. Director Division of Cardiovascular and Respiratory Devices Office of Device Evaluation Center for Devices and Radiological Health
Enclosure
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ATTACHMENT J: Indications for Use Statement
510(k) Number (if known): K990063
Device Name: TG-901T CO2 Sensor
Indications for Use:
The Nihon Kohden TG-901T CO2 Sensor is intended for medical purposes to measure the concentration of The Nulon Kondon't C 7011 of aid in determining the patient's ventilatory status. The device is intended as an indicator of patient carbon dioxide concentration during expiration and is not intended as the sole basis for medical diagnosis.
This device is intended for use with patients three (3) years of age and older. This device is not recommended for patients with low tidal volume such as patients younger than three (3) years of age or weighing less 22 pounds or patients with a respiration rate greater than or equal to 60 breaths per minute.
H. A. Cirlawski.
(Division Sign-Off) Division of Cardiovascular, Respiratory, and Neurological Devices 510(k) Number
Prescription Use (Per 21 CFR 801.109)
§ 868.1400 Carbon dioxide gas analyzer.
(a)
Identification. A carbon dioxide gas analyzer is a device intended to measure the concentration of carbon dioxide in a gas mixture to aid in determining the patient's ventilatory, circulatory, and metabolic status. The device may use techniques such as chemical titration, absorption of infrared radiation, gas chromatography, or mass spectrometry.(b)
Classification. Class II (performance standards).