(104 days)
The ViOptix ODISsey Tissue Oximeter is intended to non-invasively estimate the percent oxygen saturation (StO2) in a volume of tissue. This is performed in medical environments including physician offices, hospitals, ambulatory care and Emergency Medical Services.
The ODISsey Tissue Oximeter is indicated for use in monitoring patients during circulatory or perfusion examinations of skeletal muscle or when there is a suspicion of compromised circulation.
The ODISsey Tissue Oximeter is an optically based device that noninvasively estimates the percent oxygen saturation (StO2) in a volume of tissue underneath the sensor.
This document describes an animal study used to demonstrate the performance of the ViOptix ODISsey Tissue Oximeter.
1. Table of Acceptance Criteria & Reported Device Performance
| Acceptance Criteria | Reported Device Performance |
|---|---|
| Correlation with Gold Standard CO-Oximeter | "Excellent correlation" with Radiometer OSM3™ Hemoximeter (CO-Oximeter) values for tissue oxygen saturation (StO2) on surgically removed and perfused dog limbs. |
| Correlation with Predicate Device (InSpectra™ Tissue Spectrometer) | "Excellent correlation" with Hutchinson's InSpectra™ Tissue Spectrometer values for tissue oxygen saturation (StO2) on surgically removed and perfused dog limbs. |
Note: The document does not specify quantitative acceptance criteria (e.g., a specific correlation coefficient or accuracy range). The reported performance is qualitative ("excellent correlation").
2. Sample Size & Data Provenance
- Test Set Sample Size: The study used three dog limbs.
- Data Provenance: Animal study, specifically using surgically removed and perfused dog limbs. The country of origin is not specified but is implicitly the location of the ViOptix, Inc. in Fremont, CA, or the testing facility they contracted. This is a prospective study.
3. Number of Experts and Qualifications for Ground Truth
- The ground truth was established by a Radiometer OSM3™ Hemoximeter (CO-Oximeter), which is described as a "gold standard." There is no mention of human experts establishing or adjudicating the ground truth in this specific animal study documentation. The CO-Oximeter itself serves as the reference measurement.
4. Adjudication Method for the Test Set
- None (as ground truth was established by an instrument, not human experts).
5. Multi-Reader Multi-Case (MRMC) Comparative Effectiveness Study
- No, an MRMC comparative effectiveness study was not conducted according to this document. The study focuses on comparing the device's readings against a "gold standard" instrument and a predicate device.
6. Standalone (Algorithm Only) Performance Study
- Yes, this constitutes a standalone performance study. The device, the ViOptix ODISsey Tissue Oximeter, directly measured StO2 in tissue, and its output was compared to reference measurements. There is no human intervention in the device's measurement process itself.
7. Type of Ground Truth Used
- Instrumental Gold Standard: The ground truth for tissue oxygen saturation (StO2) was established by a Radiometer OSM3™ Hemoximeter (CO-Oximeter), which is referred to as a "gold standard."
8. Sample Size for the Training Set
- The document does not provide information regarding a training set. This is a performance validation study, not a description of the algorithm development or internal training.
9. How Ground Truth for the Training Set Was Established
- As no information on a training set is provided, the method for establishing its ground truth is not applicable/not available in this document.
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JAN 1 0 2005
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44061-B Old Warm Springs Blvd Fremont, CA 94538 510-226-2860 info@vioptix.com
SUMMARY
510-226-5860
510-226-5864
Submitter's name: Address:
ViOptix, Inc. 44061-B Old Warms Springs Blvd. Fremont, CA 94538
Phone: Fax number:
Name of contact person:
Name of the device:
Classification name:
Trade or proprietary name:
Common or usual name:
Greg Holland Requlatory Specialists, Inc 3722 Ave. Sausalito Irvine, CA 92606 Phone: 949-262-0411
Date the summary was prepared: September 27, 2004
ViOptix ODISsey Tissue Oximeter Tissue Oximeter Tissue Spectrometer
The legally marketed device to which we are claiming equivalence [807.92(a)(3)]:
K012759 and K023938, InSpectra Tissue Spectrometer System, Model 325, manufactured by Hutchinson Technology Inc. and the Biospectrometer NB Oximeter Model 1111 K963903, also manufactured by Hutchinson Technology.
Oximeter
Description of the device:
The ODISsey Tissue Oximeter is an optically based device that noninvasively estimates the percent oxygen saturation (StO2) in a volume of tissue underneath the sensor.
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Indications:
The ViOptix ODISsey Tissue Oximeter is intended to non-invasively estimate the percent oxygen saturation (StO2) in a volume of tissue. This is performed in medical environments including physician offices, hospitals, ambulatory care and Emergency Medical Services.
The ODISsey Tissue Oximeter is indicated for use in monitoring patients during circulatory or perfusion examinations of skeletal muscle or when there is a suspicion of compromised circulation.
Summary of the technological characteristics of our device compared to the predicate device:
Technological Characteristics
The technological characteristics of the ODISsey ™ Tissue Oximeter, Model Oxy-2 are similar to those of the cited predicate devices, as well as similar devices based on near-infrared technology. These devices are equivalent in terms of design, functionality, principles of operation, performance specifications and indications for use. When compared to the predicate device, ODISsey ™ Tissue Oximeter, Model Oxy-2 does not raise new technological issues.
Indications for Use .
Oximeters and perfusion monitors are used to measure oxygen saturation in the arteries or tissues, or to assess the amount of oxygen delivered to the tissues. Substantial equivalence for the ODISsey ™ Tissue Oximeter, Model Oxy-2 is supported by the predicate devices with identical indications for use.
Performance Testing
Bench testing, biocompatibility testing, and animal studies, were performed to demonstrate the product functions as intended. The ODISsey ™ Tissue Oximeter, Model Oxy-2 is designed to comply with the requirements of electrical safety, laser safety, and electromagnetic compatibility requirements.
Animal Testing
The ViOptix ODISsey™ Tissue Oximeter product performance was evaluated against a "gold standard" CO-Oximeter and a FDA cleared predicate device from Hutchinson Testing was performed by measuring tissue oxygen saturation (StO2) on three dog limbs surgically removed and perfused with an extracorporeal blood circulation system. Oxygen perfusion was controlled and monitored by
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a Radiometer OSM3™ Hemoximeter (CO-Oximeter). The ViOptix StO2 values were then compared with those from the CO-Oximeter and a Hutchinson's InSpectra™ Tissue Spectrometer. These results show excellent correlation with both the "gold standard" and the predicate device.
CONCLUSION
Based on the design, technology, performance and functional testing, intended use, and clinical evaluation, the ODISsey ™ Tissue Oximeter, Model Oxy-2 is substantially equivalent to the devices currently marketed under the Federal Food, Drug and Cosmetic Act. The ODISsey ™ Tissue Oximeter, Model Oxy-2 raises no new issues of safety or effectiveness. Therefore, safety and effectiveness are reasonably assured, and substantial equivalence is supported, justifying 510(k) clearance of the ODISsey ™ Tissue Oximeter, Model Oxy-2.
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Public Health Service
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JAN 1 0 2005
Food and Drug Administration 9200 Corporate Boulevard Rockville MD 20850
ViOptix, Inc. c/o Mr. Greg Holland Regulatory Specialists, Inc. 3722 Ave. Sausalito Irvine, CA 92606
Re: K042657
Trade Name: ODISsey Tissue Oximeter Regulation Number: 21 CFR 870.2700 Regulation Name: Oximeter Regulatory Class: II (two) Product Code: MUD Dated: December 27, 2004 Received: December 28, 2004
Dear Mr. Holland:
We have reviewed your Section 510(k) premarket notification of intent to market the indication we nave reviewed your bocure is substantially equivalent (for the indications relerenced above and nave determined in the enclicate devices marketed in interstate for use stated in the encrosule) to regars manatinent date of the Medical Device American France Friend Free d. Frya commerce prior to may 26, 1976, the encordance with the provisions of the Federal Food. Drug. devices that have been recalismou in accera approval of a premarket approval application (PMA).
and Cosmetic Act (Act) that do not require approval of a premarket approval ap and Cosment Act (Rel) market the device, subject to the general controls provisions of the Act. The I ou may, merciole, market the act include requirements for annual registration, listing of general controls provisions of as tice, labeling, and prohibitions against misbranding and adulteration.
If your device is classified (see above) into either class II (Special Controls) or class III (PMA), in If your device is classified (500 a0070) ins existing major regulations affecting your device can
may be subject to such additional controls. Existing major regulations and may be subject to suell additional connections, Title 21, Parts 800 to 898. In addition, FDA may be found in the Oous neements concerning your device in the Federal Register.
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Page 2 – Page 2 - Mr. Greg Holland
Please be advised that FDA's issuance of a substantial equivalence determination does not mean Please be advised that 1 Dris issuation or our device complies with other requirements of the Act that IDA has made a deceminations administered by other Federal agencies. You must of ally rederal statutes and regulations and limited to: registration and listing (21 CFR Part 807); labeling (21 CFR Part 801); good manufacturing practice requirements as set CrK Part 807), labeling (21 CFR Part 807), good maximal (20); and If applicable, the electronic (200), 1959 forth in the quality systems (Sections 531-542 of the Act); 21 CFR 1000-1050. product radiation control provisions (Decizens over device as described in your Section 510(k) I his letter will anow you to begin mankeang your antial equivalence of your device to a legally premarket notification. The PDA miams of basification 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), please If you desire specific acvice for Jour acon 2011 276-0120. Also, please note the regulation entitled, Comaci the Office of Compulance in (21CFR Part 807.97). You may obtain Misoranting by relective to promantonibilities under the Act from the Division of Small other general information on your response 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,
B. Blumma for
D.D. Zuckerman, MD
Brand D. Zuckerman, MD Director Division of Cardiovascular Devices Office of Device Evaluation Center for Devices and Radiological Health
Enclosure
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Indications for Use Statement
510(k) Number (if known):
Device Name: ViOptix ODISsey Tissue Oximeter
Indications For Use:
The ViOptix ODISsey Tissue Oximeter is intended to non-invasively estimated The VOplix ODISSey Tissue Oximotor is wolume of tissue. This is performed the percent oxygen saturation (SCS2) in a violes, hospitals, ambulatory care and Emergency Medical Services.
The ODISsey Tissue Oximeter is indicated for use in monitoring patients The ODISSey Trisue Oximeter to muleations of skeletal muscle or when there is a suspicion of compromised circulation.
Prescription Use _____________________________________________________________________________________________________________________________________________________________ (Part 21 CFR 801 Subpart D)
Over-The-Counter Use AND/OR (21 CFR 807 Subpart C)
(PLEASE DO NOT WRITE BELOW THIS LINE-CONTINUE ON ANOTHER PAGE IF NEEDED)
Concurrence of CDRH, Office of Device Evaluation (ODE)
Blummera
(Division Sign-Off) Division of Cardiovascular Devices 510(k) Number
Page 1 of ____________________________________________________________________________________________________________________________________________________________________
§ 870.2700 Oximeter.
(a)
Identification. An oximeter is a device used to transmit radiation at a known wavelength(s) through blood and to measure the blood oxygen saturation based on the amount of reflected or scattered radiation. It may be used alone or in conjunction with a fiberoptic oximeter catheter.(b)
Classification. Class II (performance standards).