The OxiMax Pulse Oximetry System is indicated for the continuous non-invasive monitoring of functional oxygen saturation of arterial hemoglobin (SpO2) and pulse rate. It is intended for use with neonatal, pediatric, and adult patients during both no motion conditions and for patients who are either well or poorly perfused, in hospital-type facilities, intra-hospital transport, and home environments. These devices are for prescription use only.
Device Story
Sensors utilize red and infrared LEDs to transmit light through tissue; photodiode detects signal variations caused by pulsatile blood flow. Integrated memory chip stores sensor model, calibration data, and patient history (SpO2/pulse rate alarm events). Used in hospitals, transport, and home environments by clinicians or patients. Oximeter processes sensor signals via algorithm to output real-time SpO2, pulse rate, and pulse amplitude. Data portability allows patient history to travel with the sensor, facilitating assessment upon transfer between care points. Benefits include continuous, non-invasive monitoring of oxygenation status.
Clinical Evidence
Clinical studies conducted per 21 CFR Parts 812, 50, and 56 to support SpO2 accuracy specifications. No specific numerical results (e.g., sensitivity/specificity) provided in the summary document.
Technological Characteristics
Adhesive pulse oximetry sensors; red and infrared LED light sources; photodiode detector. Includes memory chip for sensor data and patient history storage. Compatible with Nellcor OxiMax-capable monitors. Non-invasive optical sensing principle.
Indications for Use
Indicated for continuous non-invasive monitoring of SpO2 and pulse rate in neonatal, pediatric, and adult patients. Suitable for well or poorly perfused patients under no-motion conditions in hospital, transport, or home settings. Prescription use only.
Regulatory Classification
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.
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NOW : 0 2005
tyco
Healthcare
# Nellcor
4280 Hacienda Drive Pleasanton, CA 94588
Tele: 925 463-4000 Fax: 925 463-4020
### 510(k) Summary
| Submitted by: | Nellcor Puritan Bennett, Inc.<br>4280 Hacienda Drive<br>Pleasanton, CA 94588 |
|------------------------------------------|-------------------------------------------------------------------------------------------------------------------------------------------------------------------------|
| Company Contact: | James Patrick Garvey II, RRT, RAC<br>Regulatory Affairs Manager<br>(925) 463-4479 - Phone<br>(925) 463-4020 - FAX |
| Date Summary Prepared: | July 5, 2005 |
| Product Name: | Nellcor OxiMax Pulse Oximetry Sensors, models<br>MAX-A, MAX-AL, MAX-N, MAX-P, MAX-I and<br>MAX-FAST |
| Common Name: | Oxygen Sensor |
| Classification: | Patient Transducer and Electrode Cable (including<br>connector) (74DQA) per 21CFR §870.2700 |
| Legally Marketed<br>(Unmodified) Device: | Nellcor OxiMax Pulse Oximetry Sensors, models<br>MAX-A, MAX-AL, MAX-N, MAX-P, MAX-I and<br>MAX-FAST (cleared via K012891, March 07, 2002 and<br>K021089, June 19, 2002) |
#### DEVICE DESCRIPTION
Nellcor OxiMax Pulse Oximetry Sensors, models MAX-AL, MAX-AL, MAX-P, MAX-I and MAX-FAST are designed for continuous, non-invasive monitoring of functional oxygen saturation of arterial hemoglobin (SpO2) and pulse rate in conjunction with a Nellcor pulse oximeter. Nellcor OxiMax Pulse Oximetry Sensors, models MAX-A, MAX-AL, MAX-N, MAX-P, MAX-I and MAX-FAST are intended for prescription use with adult, pediatric and neonatal patients in hospitals, hospital-type facilities, intra-hospital transport, and home environments.
These OxiMax sensors each contain a memory chip carrying information about the sensor which the oximeter needs for correct operation including sensor model, Advanced Signal Evaluation, and data set revision. The memory chip is also cable of storing including in-sensor data when connected to an OxiMax-capable monitor, and lot code.
#### INTENDED USE
The OxiMax Pulse Oximetry System is indicated for the continuous non-invasive monitoring of functional oxygen saturation of arterial hemoglobin (SpO2) and pulse rate. It is intended for use with neonatal, pediatric, and adult patients during both no motion conditions and for patients who are either well or poorly perfused, in hospital-type facilities, intra-hospital transport, and home environments. These devices are for prescription use only.
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# TECHNOLOGICAL CHARACTERISTICS
The OxiMax Pulse Oximetry System measures functional oxygen saturation non-invasively via a light signal interacting with tissue, by utilizing the time-varying changes in tissue optical properties that occur with pulsatile blood flow. Red and infrared light-emitting diodes (LEDs) are utilized as light sources. A photodiode acting as a photo detector senses the signal strengths of the two wavelengths of light, which vary with the amount of light transmitted through the tissue. The pulse oximeter receives this electrical information from the sensor and processes the information by use of an algorithm to provide real time values of SpO2, pulse rate and pulse amplitude.
Nellcor brand sensors containing OxiMax technology are compatible with the N-595, other Nellcor oximeters and instruments containing Nellcor oximetry, or with instruments licensed to use Nellcor sensors (Nellcor-compatible instruments). OxiMax Sensor Technology, including insensor data, allows OxiMax-cable oximeters to write data to and read data from OxiMax adhesive sensors allowing patient history, namely SpO2 and pulse rate alarm events, to travel with the patient, and enabling quick patient assessment upon transfer to a new point of care.
# TESTS PERFORMED TO SUPPORT DETERMINATION OF SUBSTANTIAL EQUIVALENCE
Clinical tests were performed to support accuracy specifications for SpO2 performance. Clinical studies were conducted following regulations under Title 21 of the Code of Federal Regulations (21 CFR), Part 812 - Investigational Device Exemptions, Part 50 - Protection of Human Subjects and Part 56 - Institutional Review Boards.
## CONCLUSION
The device characteristics and results of clinical testing demonstrate that the revision to the labeling does not raise new questions of safety or effectiveness when compared to the legally marketed predicate devices.
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DEPARTMENT OF HEALTH & HUMAN SERVICES
Image /page/2/Picture/11 description: The image is a seal for the Department of Health & Human Services - USA. The seal is circular with the text "DEPARTMENT OF HEALTH & HUMAN SERVICES - USA" around the edge. In the center of the seal is an abstract image of an eagle.
Food and Drug Administration 9200 Corporate Boulevard Rockville MD 20850
NOV 1 0 2005
Mr. James Patrick Garvey Regulatory Affairs Manager Nellcor Puritan Bennett, Incorporated 4280 Hacienda Drive Pleasanton, California 94588-2719
Re: K052186
Trade/Device Name: Nellcor® OxiMax® Pulse Oximetry Sensors, Models MAX-A, MAX-AL, MAX-N, MAX-P, MAX-1 and MAX-FAST Regulation Number: 870.2700 Regulation Name: Oximeter Regulatory Class: II Product Code: DQA Dated: October 14, 2005 Received: October 17, 2005
Dear Mr Garvey:
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 (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. 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 (PMA), it may be subject to such 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.
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Page 2 - Mr. Garvey
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); good manufacturing practice requirements as set forth in the quality systems (QS) regulation (21 CFR Part 820); and if applicable, the electronic product radiation control provisions (Sections 531-542 of the Act); 21 CFR 1000-1050.
This letter will allow you to begin marketing your device as described in your Section 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), please contact the Office of Compliance at (240) 276-0120. Also, please note the regulation entitled, "Misbranding by reference to premarket notification" (21CFR Part 807.97). You may obtain other general information on your responsibilities under the Act from the Division of Small Manufacturers, International and Consumer Assistance at its toll-free number (800) 638-2041 or (301) 443-6597 or at its Internet address http://www.fda.gov/cdrh/industry/support/index.html.
Sincerely yours,
Clare
Chiu Lin, Ph.D. Director Division of Anesthesiology, General Hospital, Infection Control and Dental Devices Office of Device Evaluation Center for Devices and Radiological Health
Enclosure
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510(k) Number (if known):
OxiMax Pulse Oximetry Sensors, models MAX-A, MAX-AL, Device Name: MAX-N, MAX-P, MAX-I and MAX-FAST
Indications For Use:
The Nellcor OxiMax Pulse Oximetry Sensors, models MAX-A, MAX-AL, MAX-N, MAX-P, MAX-I and MAX-FAST are indicated for single patient use when continuous noninvasive arterial oxygen saturation and pulse rate monitoring are required for patients in the sizes indicated in the respective sensor directions for use.
Prescription Use: Yes (per 21 CFR 801.109)
(PLEASE DO NOT WRITE BELOW THIS LINE - CONTINUE ON ANOTHER PAGE IF NEEDED)
Concurrence of CDRH, Office of Device Evaluation (ODE)
Ques Sefrom
ision Sign-Off
Sign-Off)
ision of Anesthesiology, General Hospital,
fection Control, Dental Devices
Number: K052186
Two short videos show you everything — or skip straight to the written tutorial if you'd rather read. You can reopen this any time from the Tutorial button in the top bar.
Part 1 — Search, results, and everyday workflows 16 min
Part 2 — Embeddings: the galaxy map 3 min
1. Search: exact and fuzzy
Type a phrase like "coronary artery calcification" into the search box. You get two kinds of results. Exact results match the literal phrase — prefix searches work ("coronary artery calcificati") but suffix searches do not. Fuzzy results match on the meaning and intent of your phrase rather than the exact words, and are sorted by relevance score. Hover over the Exact or Fuzzy badge on any row to see exactly why it matched.
Use the checkboxes above the results to narrow: SaMD keeps only software-only devices, AI / ML keeps only devices with AI.
Exact vs. fuzzy search: what's the difference?
Exact matches on the literal phrase (prefix search works, suffix does not). Fuzzy matches on the meaning and intent of the phrase rather than the exact words. Hover over the badge on any row to see why it matched.
You search "coronary artery calcification" and want only software devices with AI. What two filters do you apply?
Narrow by SaMD (software-only devices), then narrow by AI/ML (devices with AI).
2. The results table
Scroll right in the results table. The intended use is extracted for you — no need to open the PDF. The device story gives a high-level snapshot of what the device does and how it's used. The AI Performance sub-table shows each output name, acceptance criteria, observed values, and development/test dataset descriptions — the same format Innolitics uses for regulatory strategy outputs, and the fastest high-level fingerprint of an AI device. It is AI-generated but has been very reliable in practice.
Where do you find a device's intended use without opening the PDF?
Scroll right in the search results table. The intended use column is extracted for you; no need to dig into the 510(k) summary PDF.
What does the AI Performance sub-table show, and why is it useful?
Output name, acceptance criteria, observed values, development dataset description, and test dataset description. It's the same format we use for regulatory strategy output and Fast 510(k) input, and the fastest high-level fingerprint of an AI device. AI-generated but reliable in practice.
3. Judging fuzzy relevance
Fuzzy results trail off in relevance as you scroll. Use three signals to decide how far down to go: the fuzzy badge explanations, the intended use column, and whether your target output (e.g., Cobb angle) still appears in the AI Performance sub-table. Once it stops appearing, you're past the relevant zone. A top hit with a low score (~0.4) and a stretched explanation is a hint the closest predicates are far away — the project may be headed for De Novo. Note the fuzzy search is a pattern match: it doesn't handle negation ("not") well, and hardware devices can appear — filter by SaMD/AI ML to cut them.
How do you judge how far down fuzzy search results to go?
Use the relevancy signals: the fuzzy badge explanations, the intended use column, and whether the target output (e.g., Cobb angle) still appears in the AI Performance sub-table. Once it stops appearing, results are trailing off in relevancy.
4. Device detail page: chat and citations
Click a device name to open its detail page: device facts on the left, a chat window on the right. Ask something like "Describe the training data". The answer carries little citation bubbles — click one to jump to the highlighted passage in the source PDF, so you can verify every AI answer against the document. There's also a Download PDF button for sharing.
How do you verify an AI chat answer on the device detail page?
Click the citation bubbles to jump to the relevant highlight in the source document.
Reading rule for every project: how many summaries do you read in full?
At least the three most relevant 510(k) or De Novo summaries, in full. After that, use targeted chat questions to confirm your memory quickly. The tool supports this professional habit — it doesn't replace it.
5. Side-by-side comparison
Select multiple rows in the results table (aim for under ~10), then open the PDF Viewer tab. Ask one question — it goes to all selected devices in parallel, each with citations. This is the fastest way to compare and contrast devices: training data, PCCP scope, how they handled adding new scanners, and so on.
What does the side-by-side PDF viewer mode do?
Select multiple devices, open the PDF viewer tab, and ask one question (e.g., "Describe the training data"). It queries all selected devices simultaneously with citations, so you can compare and contrast quickly.
6. Collections
With rows selected, go to the Collections tab and create a labeled collection (e.g., "Cobb Angle Project"). Reload that selection any time — before a client call, pull up the collection and ask questions across all of its devices at once.
How do you save a set of selected devices for later use?
Select the rows, go to the Collections tab, and create a labeled collection (e.g., "Cobb Angle Project"). You can reload the selection anytime and carry it into the PDF viewer and other tabs that support selections.
7. Product codes and the regulations tree
Click a product code in the results to jump to it in the regulations tree — identification text, sibling product codes, and devices you can open in a PDF viewer on the right. Click a regulation number to see its identification, special controls, and related product codes. You can also search by product code or regulation number at the top of the tree. Always read the special controls if any exist for your device — it broadens your search and sharpens pre-kickoff research.
What can you do from the regulations tree view?
Browse product codes and regulation numbers, read the identification text and special controls, browse sibling product codes, open device PDFs on the right, and search by product code or regulation number at the top of the tree.
8. Chart view
Click Show Chart and segment by regulation number (or product code) to see which regulations dominate your result set. Clicking a regulation takes you into the regulations tree. Great for spotting that most matches are, say, hardware laparoscopic devices — a cue to go back and filter.
How do you see which regulations dominate a search result set?
Click "Show Chart" and segment by Regulation Number. Clicking a regulation takes you to the regulations tree.
9. The predicate graph
Open the Predicates tab for a family-tree view of predicate relationships. Click a node to trace its parents and children; selections from search carry over pre-selected. Commonly predicated devices are worth reading — a lot of people predicated them for a reason. The visual lineage is also handy on client calls, e.g. to show how a predicate family evolved and justify why your predicate still holds.
In the predicate graph, why are commonly predicated devices worth reading?
A lot of people predicated them for a reason. Clicking a node traces parents and children, and selections from search carry over pre-selected.
10. Embeddings: the galaxy map
The Embeddings tab plots every matching document in a 2-D "galaxy map" where semantically similar devices cluster together. Hover or click clusters to explore, and let AI label the clusters for you. Embeddings beat product codes for grouping: two devices can carry different product codes (LLZ vs. QIH) yet do the same thing — the embedding captures the meaning of the intended use and device story. This is also exactly how retrieval-augmented generation (RAG) works under the hood, and it makes a great visual on client calls.
Try it yourself
Head to the search page and work through a few of these AI/ML fuzzy searches to build intuition: perivascular fat on CT · aortic valve calcification opportunistic screening on noncontrast CT · breast cancer prediction on digital pathology slides · autism detection · gestational age prediction · a hearing aid that can also detect a pulse · foundation model based analysis of ECG · large language models · penetration test. Watch how the relevance scores, intended use, and AI Performance tables tell you when results stop being meaningful.