The LNCS oximetry sensors are interest of the continuous of inctional oxygen saturation of arterial The LNCS oximetry sensors are miended tot the commonly of themseling of the more of the more of the mater patients in hospitals, hospital-type facilities, mobile, and home environments.
Device Story
LNCS Oximetry Sensors are disposable and reusable sensors designed for non-invasive optical assessment of tissue oxygenation; they utilize emitters and detectors to measure functional arterial hemoglobin oxygen saturation (SpO2) and pulse rate. The sensors are compatible with Masimo SET and Nellcor pulse oximeter monitors. Used in hospitals, hospital-type facilities, mobile, and home environments, the sensors provide data to the host monitor, which processes the signals to display SpO2 and pulse rate. This information assists clinicians in patient monitoring and clinical decision-making regarding oxygenation status. The sensors benefit patients by providing continuous, real-time monitoring of vital signs.
Clinical Evidence
Clinical studies were conducted on healthy adult volunteers using LNCS disposable sensors with Nellcor N-200 instruments. Subjects underwent progressive induced hypoxia under no-motion conditions. Arterial blood samples were measured via CO-Oximeter as the reference. Results demonstrated an accuracy of <2% SpO2 ARMS in the 70%-100% SaO2 range for adults, pediatrics, and infants, and <3% ARMS for neonates.
Technological Characteristics
Non-invasive optical sensor using emitters and detectors. Materials are identical to Masimo's LNOP sensors (non-toxic, non-irritating, non-sensitizing). Compatible with Masimo SET and Nellcor pulse oximeter monitors. Environmental testing performed per November 1993 Reviewers Guidance (electrical, mechanical).
Indications for Use
Indicated for continuous monitoring of functional arterial oxygen saturation (SpO2) and pulse rate in adult, pediatric, and neonatal patients in hospital, hospital-type, mobile, and home environments, including patients who are well or poorly perfused, under both motion and no-motion conditions.
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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K05/2/2
010
# JUL 122005 510(k) SUMMARY
Image /page/0/Picture/2 description: The image shows the logo and contact information for Masimo. The logo is a stylized wordmark with the company name in bold, sans-serif font. Below the logo is the address: 40 Parker, Irvine, CA 92618. The telephone number is 949-297-7000 and the fax number is 949-297-7001.
| Submitted by: | Masimo Corporation<br>40 Parker<br>Irvine, CA 92618<br>949-297-7000<br>FAX 949-297-7001 |
|---------------------------------------|-----------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------|
| Company Contact: | James J. Cronin, Vice President, Regulatory Affairs/Quality Assurance |
| Date Summary Prepared: | May 10, 2005 |
| Trade Name | LNCS Oximetry Sensors |
| Common Name | Oximeter Sensor |
| Classification Name and Product Code: | Oximeter (74DQA) (870.2700)<br>Cable, Transducer and Electrode (74DSA) (870.2900)<br>Oximeter, Ear (74DPZ) (870.2710) |
| Substantially Equivalent Devices: | LNCS Oximetry Sensors<br>510(k) Number – K041815<br>SPO2.COM A, P, I, N, RS-I Pulse Oximeter Sensors 510(k) Number -- K0332<br>Nellcor N-395 Pulse Oximeter – K991823<br>Nellcor N-200 Pulse Oximeter - K863784 |
# Device Description
The LNCS Oximetry Sensors are fully compatible disposable and reusable sensors for use with Masimo SET and Masimo SET The LNCS Oximetry Sensors are tuly computible disposed and the use oximeter montiors. There is no
compatible pulse oximeter monitors and that the sate and that the eased with compatible pulse oximeter montors and Nellor and Neticor composible pass and also be used with Nellcor and change in acciginal pulse oximeter monitors.
# Intended Use
The LNCS oximetry sensors are interest of the continuous of inctional oxygen saturation of arterial The LNCS oximetry sensors are miended tot the commonly of themseling of the more of the more of the mater patients in hospitals, hospital-type facilities, mobile, and home environments.
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# 510(k) SUMMARY
### Technology Comparison
The LNCS oximetry sensors are equivalent in intended use, design, principles of operation, materials, and performance to I he LNCS oximery sensors an identical principles of non-invasive optical assessment of tissue oxygenation using emitters and detectors.
The LNCS oximetry sensors are designed, and manufactured for full compatibility with Masimo SET and Masims . I lie LNCS oximenty and Nellcor and Nellcor compatible pulse oximeter monitors. The LNCS oximetry SET companition pulse of exact materials and components as used in the predicate devices.
The accuracy of the LNCS oximetry sensors is equivalent to those of the predicate devices.
#### Performance Testing
#### Biocompatibility
All the patient contacting materials used in the LNCS sensors are the same materials that are used in Masimo's LNOP All the patient comacing materials used in the materials were non-toxic, non-irritating, and non sensitizing.
## Environmental Testing
Applicable environmetal testing per the Reviewers Guidance for Premarket Submissions - November 1993, i.e. electrical, mechanical and environmental were performed and all tests passed
#### Clinical Testing
Clinical studies were performed using the LNCS Disposable oximetry sensors with Nellcor N-200 instruments on healthy adult volunteer subjects during no motion conditions who were subjected to a progressive induced Instruitents on nealthy addit volunt value with the instruments against the arterial hemoglobin ifyposal and neasuring the arterial blood samples with a CO-Oximeter. Clinical testing of the LNCS Disposable and Uxygun dolor in an accuracy of less than 2% SpO2 AxMs in the range of 70%-100% SaO2 for adults, pediatrics and infants and less than 3% ARMS for neonates.
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Image /page/2/Picture/2 description: The image shows the logo for the U.S. Department of Health and Human Services. The logo consists of a circular seal with the text "DEPARTMENT OF HEALTH AND HUMAN SERVICES - USA" arranged around the perimeter. Inside the circle is a stylized image of an eagle with its wings spread, composed of three parallel lines.
JUL 1 2 2005
Food and Drug Administration 9200 Corporate Boulevard Rockville MD 20850
4
James J. Cronin James J. Grom...
Vice President, Regulatory Affairs/Quality Assurance Masimo Corporation 40 Parker Irvine, California 92618
Re: K051212
K051212
Trade/Device Name: Modification to LCN Oximetry Sensors Regulation Number: 21 CFR 870.2700 Regulation Name: Oximeter Sensor Regulatory Class: Class II Product Code: DQA Dated: June 30, 2005 Received: July 1, 2005
Dear Mr. Cronin:
We have reviewed your Section 510(k) premarket notification of intent to market the indication we have reviewed your Section >><<<<>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>> for use stated in the enclosure) to legally marketed predicate devices marketed in interstate for use stated in the encrosule) to regally manatise producal Device Amendments, or to commerce prior to May 26, 1770, the chasiness and of the Federal Food. Drug, devices that have been reclassince in accerdance was a proval approval approval application (PMA).)
and Cosmetic Act (Act) that do not require approval of a premarket approva and Cosment Act (Act) that do not require approvisions of the general controls provisions of the Act. The You may, therefore, market the do received be requirements for annual registration, listing of general controls provisions of the Fiel 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 If your device is classified (Scc above) into existing major regulations affecting your device can
may be subject to such additional controls. Existing major regulations ED may be subject to such additional controlls. Entroling and to 898. In addition, FDA may be found in the Ood of Poussal Sincerning your device in the Federal Register.
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Page 2 - Mr. Cronin
Please be advised that FDA's issuance of a substantial equivalence determination does not mean Please be advised that I Dri- s issuation or our device complies with other requirements of the Act that FDA has made a decemination administered by other Federal agencies. You must of any Federal statutes and regulations anninesses of 3 mot limited to: registration and listing (21 Comply with an the Act 3 requirements, n.c.i.e.s.
CFR Part 807); labeling (21 CFR Part 801); good manufacturing practice requirements as set CFR Part 807), labeling (21 CFR Part 820); and if applicable, the electronic form in the quality systems (Sections 531-542 of the Act); 21 CFR 1000-1050.
product radiation control provisions (Sections 531-542 of the Act); 21 CFR 1000-1050. product radiation control provisions (Decleils over of Sectibed in your Section 510(k) I his letter will andw you to oegin manceing your antial equivalence of your device to a legally premarket nothication. The PDA miding 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 advice for your ac (240) 276-0120. Also, please note the regulation entitled, Colliact the Office of Complians in (21CFR Part 807.97). You may obtain "Misorallumig by relevel to premaritoritive under the Act from the Division of Small other gelleral Information on your response Assistance at its toll-free number (800) 638-204 or Manufacturers, Internet address http://www.fda.gov/cdrh/industry/support/index.html.
Sincerely yours,
Auyxubeom for
Chin Lin, Ph.D.
Chin 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):
#### LNCS Sensors Device Name:
# Indications For Use:
The LNCS Sensors are indicated for the continuous nonitoring of functional-oxygen saturation of arterial The LNCS Sensors are indicated tor the communes with and with recident of the t, and neouatal hemoglobin (SpO), and pulse rate (measured by an SpO-sellson for ass who box 7 man 7
patients during both no motion conditions, and for patients who are well or poorly perfus patients during oour no mobile, and home environments.
Prescription Use X (Per 21 CFR 801 Subpart D) AND/OR
Over-The-Counter Use (Per 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)
Auy Salom
Division Sign-Off) islon of Angethesiology, General Hospital, Infection Control, Dental Devices
510(k) Number:
009
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.