The UniProbe Adapter Cable allows specified Nellcor brand reusable and patient-dedicated oxygen sensors to be used with specified Ohmeda and Ohmeda-compatible Marquette Tram pulse oximetry monitors, to provide noninvasive measurement of oxygen saturation and pulse rate. The intended patient population for the UniProbe Adapter Cable includes adult, pediatric and neonatal patients. Use with any particular patient requires selection of an appropriate Nellcor brand oxygen sensor. The UniProbe Adapter Cable may be used in any hospital-type environment where the specified compatible monitors may be used. The UniProbe is contraindicated for use during MRI scanning. The UniProbe Adapter Cable is NOT intended for use in the home care environment. The UniProbe Adapter Cable is a prescription device and is to be used by qualified health care professionals only.
Device Story
UniProbe Adapter Cable enables use of Nellcor brand pulse oximetry sensors with Ohmeda and Ohmeda-compatible Marquette Tram monitors; facilitates substitution of Nellcor sensors for Ohmeda sensors. Device consists of molded plastic housing containing analog printed circuit boards; no software-driven circuitry. Connects via 9-pin sensor connector to Nellcor sensor; connects to monitor via Hypertronics connector; requires external power via front panel, rear panel, or AC wall power configurations. Used by qualified healthcare professionals in hospital settings to monitor SpO2 and pulse rate. Output displayed on compatible host monitor; assists clinicians in patient oxygenation assessment. Benefits include expanded sensor compatibility for existing monitoring infrastructure.
Clinical Evidence
Clinical evidence includes in vitro and in vivo testing. Co-oximeter correlation study performed across 70%-100% saturation range using Marquette TRAM and Ohmeda 3740 monitors with various UniProbe configurations. Results confirmed oxygen saturation accuracy equivalent to predicate OxyTip A/P sensor combinations.
Technological Characteristics
Analog circuit-based adapter cable; molded plastic housing; 9-pin sensor connector; Hypertronics monitor connector; coaxial barrel power connector. Three configurations (UP12A, UP12B, UP12C) based on power source (front panel, rear panel, or AC wall power). No software or firmware. Designed for use with Nellcor sensors and Ohmeda/Marquette monitors.
Indications for Use
Indicated for noninvasive measurement of arterial oxygen saturation and pulse rate in adult, pediatric, and neonatal patients in hospital environments. Contraindicated for use during MRI scanning. 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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> Nellcor Puritan Bennett UniProbe Adapter Cable 510(k) Summary December 3, 1998 Page 1 of 5
# 1. COMPANY INFORMATION
Establishment:
Nellcor Puritan Bennett Inc. 4280 Hacienda Drive Pleasanton, CA 94588
Official Correspondent:
Sheryll A. Mathews Sr. Requlatory Affairs Specialist
#### DEVICE NAME . 2.
Proprietary:
Common/Usual:
Classification:
UniProbe Adapter Cable
Adapter Cable
Oximeter, 74DQA
#### EQUIVALENT DEVICE 3.
The UniProbe/Nellcor brand sensor combination used in conjunction with the specified Ohmeda or Ohmeda-compatible Marquette Tram monitors is substantially equivalent to the specified monitors used in conjunction with an Ohmeda sensor. The 510(k) numbers for the specified monitors/Ohmeda sensor combination are listed below;
| Product | 510(k) Number | Date Cleared |
|------------------------------------------|---------------|--------------|
| Ohmeda Biox 3700/3700e<br>Pulse Oximeter | K850494 | 3/28/85 |
| Ohmeda Biox 3740 Pulse<br>Oximeter | K872772 | 10/7/87 |
| Ohmeda Biox 3760 Pulse<br>Oximeter | K874104 | 12/3/87 |
| Ohmeda 3800 Pulse<br>Oximeter | K962127 | 10/10/96 |
| Marquette Tram Modules | K921669 | 5/7/93 |
Nellcor Puritan Bennett Inc. 510(k) Premarket Notification UniProbe Adapter Cable #K982728 Additional Information - Confidential
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P. 4
Nellcor Puritan Bennett UniProbe Adapter Cable 510(k) Summary December 3, 1998 Page 2 of 5
#### DEVICE DESCRIPTION 4.
:
The UniProbe Adapter Cable allows specified Nellcor brand reusable and patient-dedicated oxygen sensors to be used with specified Ohmeda and Ohmeda-compatible Marquette Tram pulse oximetry monitors, to provide noninvasive measurement of arterial oxygen saturation and pulse rate.
That is, the UniProbe Adapter Cable allows the user to substitute Nellcor brand sensors for Ohmeda brand sensors when measuring SpO2 with the specified Ohmeda and Ohmeda-compatible Marquette Tram pulse oximetry monitors.
The UniProbe has been designed and tested to be compatible with the following monitors:
Ohmeda Models: 3700, 3700e, 3740, 3760, 3800
Marquette Tram® Models (Ohmeda compatible): 200, 200A, 200SL, 400A, 400SL, 600, 600A, 600SL, 800A, 800SL
The major components of the UniProbe are a molded plastic housing that contains a pair of printed circuit boards sandwiched together. The circuit consists primarily of analog components with no software driven circuitry. The UniProbe's body is approximately 6 inches long with a 10 foot sensor cable attached at one end and a power cable and monitor cable attached at the other end.
The sensor cable is approximately ten feet long and terminates in a 9-pin sensor connector that accepts a Nellcor brand oximetry sensor.
The power cable and monitor cable emerge together from the opposite end of the housing and are approximately eighteen inches long.
The power cable terminates in a coaxial barrel connector (power plug) that connects to one of three possible power connectors, depending on the model of monitor it is used with.
The monitor cable has a Hypertronics connector (monitor connector) that plugs into the sensor (Patient or SpO2) port of the oximeter.
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Nellcor Puritan Bennett UniProbe Adapter Cable 510(k) Summary December 3, 1998 Page 3 of 5
> The UniProbe is supplied in 3 different configurations depending on the Ohmeda or Ohmeda-compatible Marquette Tram monitor used. Power must be supplied to the UniProbe using one of three different power connectors as listed in the following table:
| Compatible Monitor | UniProbe<br>Configuration<br>Model Number | Power Connector |
|--------------------------|-------------------------------------------|-------------------|
| Marquette Tram Monitors | UP12A | Front Panel Power |
| Ohmeda 3740, 3760 | UP12B | Rear Panel Power |
| Ohmeda 3700, 3700e, 3800 | UP12C | AC Wall Power |
The Front Panel Power Connector (part of configuration UP12A) is designed to plug into the "DISPL" socket on the front panel of the Marquette Tram. The UniProbe's power plug plugs into a mating connector mounted within the Front Panel Power Connector.
The Rear Panel Power Connector (part of configuration UP12B) connects between the oximeter's own power cord and rear panel power inlet. The UniProbe's power plug plugs into a mating connector mounted within the Rear Panel Power Connector.
The AC Wall Power Connector (part of configuration UP12C) consists of a switching power supply that connects to the power plug of the UniProbe.
A UniProbe Adapter Cable is shipped with one power connector, Velcro strips and a DFU in a carton.
#### 5. INTENDED USE
The UniProbe Adapter Cable allows specified Nellcor brand reusable and patient-dedicated oxygen sensors to be used with specified Ohmeda and Ohmeda-compatible Marquette Tram pulse oximetry monitors, to provide noninvasive measurement of oxygen saturation and pulse rate.
Nellcor Puritan Bennett Inc. 510(k) Premarket Notification UniProbe Adapter Cable #K982728 Additional Information - Confidential
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Nellcor Puritan Bennett UniProbe Adapter Cable 510(k) Summarv December 3, 1998 Page 4 of 5
> The intended patient population for the UniProbe includes adult, pediatric and neonatal patients. Use with any particular patient requires selection of an appropriate Nellcor brand oxygen sensor.
The UniProbe may be used in any hospital or hospital-type environment where the specified compatible monitors may be used. The UniProbe is contraindicated for use during MRI scanning. The UniProbe is NOT intended for use in the home care environment. The UniProbe is a prescription device and is to be used by qualified health care professionals only.
### TECHNOLOGICAL CHARACTERISTICS હ.
The new device (a UniProbe/Nellcor brand sensor used with an Ohmeda or Ohmeda-compatible Marquette Tram monitor) and the predicate devices (Ohmeda 3700, 3700e, 3740, 3760, 3800 pulse oximeters and Ohmeda-compatible Marquette Tram monitors all used with an OxyTip sensor), all measure oxygen saturation and pulse rate using equivalent technology. The technological characteristics of the new device and the currently marketed predicate devices are equivalent.
Comparative Performance Evaluations:
The safety and effectiveness of the UniProbe Adapter Cable has been demonstrated by design and testing. Environmental and EMC testing has been conducted as recommended by the applicable sections of the Reviewer's Guidance for Premarket Notification Submissions. November 1993. Testing results demonstrated that all applicable requirements have been met.
The accuracy and performance of the Ohmeda or Ohmeda-compatible Marquette Tram monitor/UniProbe/Nelicor brand sensor combinations have been demonstrated through in vitro and in vivo clinical testing. The Ohmeda 3740/OxyTip A/P combination was compared to the Ohmeda 3700, 3740, 3760, 3800, Tram 600/UniProbe/D25 combination, Test results confirmed that the oxygen saturation accuracy performance of the UniProbe/D25 combination was equivalent to the OxyTip A/P across the recommended device line.
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Nellcor Puritan Bennett UniProbe Adapter Cable 510(k) Summary December 3, 1998 Page 5 of 5
> To further demonstrate that the UniProbe met the stated accuracy specifications, a Co-oximeter Correlation Study (blood study over the specified saturation range of 70% - 100%) was performed using the Marquette TRAM with UP12A, Ohmeda 3740 with UP12B and Ohmeda 3740 with UP12C. These systems are considered representative of all specified Ohmeda and Ohmeda compatible Marquette monitors when used with the appropriate UniProbe Adapter Cable.
The results of the Co-oximeter Correlation Study clearly demonstrate that the UniProbe, when used with the specified Ohmeda or Ohmeda compatible Marquette monitors, meets the stated accuracy specifications.
Nellcor Puritan Bennett Inc. 510(k) Premarket Notification UniProbe Adapter Cable #K982728 Additional Information - Confidential
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Food and Drug Administration 9200 Corporate Boulevard Rockville MD 20850
DEC 7 1998
Ms. Sherry Mathews Nellcor Puritan Bennett Inc. 4280 Hacienda Drive Pleasanton, CA 94588-2719
Re: K982728 UniProbe Adapter Cable Models UP12A, UP12B and UP12C Requlatory Class: II (two) Product Code: 74 DQA Dated: Undated Received: November 20, 1998
Dear Ms. Mathews:
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 Existing major regulations affecting your device additional controls. can be found in the Code of Federal Regulations, Title 21, Parts 800 A substantially equivalent determination assumes compliance to 895. with 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 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 regulations.
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## Page 2 - Ms. Sherry Mathews
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 requlation (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 regulation entitled, "Misbranding by reference to premarket notification" (21 CFR 807.97). Other general 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,
Thomas J. Callahan
Thomas J. Callahan, Ph.D. Director Division of Cardiovascular, Respiratory, and Neurological Devices Office of Device Evaluation Center for Devices and Radiological Health
Enclosure
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Page of
510(k) Number (if known):
To be assigned K962728
Nellcor Puritan Bennett UniProbe Adapter Cable Device Name:
Indications For Use:
The UniProbe Adapter Cable allows specified Nellcor brand reusable and patient-dedicated oxygen sensors to be used with specified Ohmeda-compatible Marquette Tram pulse oximetry monitors, to provide noninvasive measurement of oxygen saturation and pulse rate.
The intended patient population for the UniProbe Adapter Cable includes adult, pediatric and neonatal patients. Use with any particular patient requires selection of an appropriate Nellcor brand oxygen sensor.
The UniProbe Adapter Cable may be used in any hospital-type environment where the specified compatible monitors may be used. The UniProbe is contraindicated for use during MRJ scanning. The UniProbe Adapter Cable is NOT intended for use in the home care environment. The UniProbe Adapter Cable is a prescription device and is to be used by qualified health care professionals only,
(PLEASE DO NOT WRITE BELOW THIS LINE - CONTINUE ON ANOTHER PAGE IF NEEDED)
Concurrence of CDRH, Office of Device Evaluation (ODE)
Prescription Use (Per 21 CFR 801.109)
OR
Over-The-Counter Use
(Optional Format 1-2-96)
Mark Kramer
(Division Sign-Off)
Division of Cardiovascular, Respiratory, and Neurological Devices 510(k) Number
Nellcor Puritan Bennett Inc. 510(k) Premarket Notification UniProbe Adapter Cable #K982728 Additional Information - Confidential
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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.