The SPO PulseOx 5500 Pulse Oximeter is indicated for use for spot-checking of functional oxygen saturation of arterial hemoglobin (SpO2) and pulse rate of adult and pediatric patients in hospitals, medical facilities, home care, transport and sub-acute environments. The SPO PulseOx 7500 Pulse Oximeter, a small, wrist-worn device, is indicated for use in measuring, displaying and storing functional oxygen saturation of arterial hemoglobin (SpO2) and pulse rate. It may be used for spot checking and/or data collection and recording of adult and pediatric patients in hospitals, medical facilities, ambulatory, sub-acute and sleep study environments.
Device Story
PulseOx 5500 (finger) and 7500 (wrist-worn) pulse oximeters; monitor arterial hemoglobin oxygen saturation (SpO2) and pulse rate. Reflective pulse oximetry principle; sensor emits light at visible and infrared wavelengths; measures reflected light intensity changes to calculate oxygen saturation. Components: sensor block, analog block, controller, LCD display, battery. Used by clinicians or patients in hospitals, medical facilities, home care, transport, sub-acute, ambulatory, and sleep study environments. Output displayed on LCD; 7500 model includes data storage. Provides non-invasive monitoring to assist clinical decision-making regarding patient oxygenation status.
Clinical Evidence
Validated via three clinical studies: comparison of PulseOx vs. Masimo/Radical vs. arterial blood sampling; comparison of PulseOx 5500/7500 vs. Masimo/Radical; and comparison of reflectance pulse oximeter accuracy vs. standard pulse oximeter in adults. Meta-analysis performed comparing device performance to blood sampling results; results showed sufficient correlation to gold standard.
Technological Characteristics
Reflective pulse oximetry; visible and infrared light sources. Components: sensor block, analog block, controller, LCD display, battery. Standards: IEC 60601-1 (safety), IEC 60601-1-2 (EMC). Software validation per IEC 60601-1-4 and FDA software guidance.
Indications for Use
Indicated for spot-checking and/or data collection/recording of SpO2 and pulse rate in adult and pediatric patients in clinical, home, transport, ambulatory, and sleep study settings.
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.
3100 WristOx Wrist Pulse Oximeter (Nonin Medical Inc., K030668)
Submission Summary (Full Text)
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Image /page/0/Picture/1 description: The image shows the logo for the U.S. Department of Health & Human Services. The logo is circular and contains the text "DEPARTMENT OF HEALTH & HUMAN SERVICES - USA" around the perimeter. Inside the circle is a stylized image of an eagle with three lines representing its wings and body.
Public Health Service
Food and Drug Administration 9200 Corporate Boulevard Rockville MD 20850
SPO Medical Equipment Limited C/O Ms. Ahava M. Stein Consulting 20 Hata'as Street, Suite 213 44425 Kfar Saba ISRAEL
Re: K040178
Trade/Device Name: PulseOx 7500 WristWatch Device, PulseOx 5500 Finger Device Regulation Number: 870.2700 Regulation Name: Oximeter Regulatory Class: II Product Code: DQA Dated: August 17, 2004 Received: August 23, 2004
Dear Ms. Stein:
This letter corrects our substantially equivalent letter of September 10, 2004.
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 (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 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.
SEP 2 8 2004
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o 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/dsma/dsmamain.html
Sincerely yours,
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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## Indications for Use Statement
510(k) Number (if known): K040178
Device Name:
PulseOx 5500 Finger Device
Indications For Use:
The SPO PulseOx 5500 Pulse Oximeter is indicated for use for spot-checking of functional oxygen saturation of arterial hemoglobin (SpO2) and pulse rate of adult and pediatric patients in hospitals, medical facilities, home care, transport and sub-acute environment.
Com Suom
(Division Sign-Off)
Division of Anesthesiology, General Hospital,
Infection Control, Dental Devices
510(k) Number: K040178
AND/OR
Prescription Use _ V (Part 21 CFR 801 Subpart D) Over-The-Counter Use (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)
Page 1 of 1
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## Indications for Use Statement
510(k) Number (if known): K040178
Device Name:
PulseOx 7500 WristWatch Device
Indications For Use:
The SPO PulseOx 7500 Pulse Oximeter, a small, wrist-worn device, is indicated for use in measuring, displaying and storing functional oxygen saturation of arterial hemoglobin (SpO2) and pulse rate. It may be used for spot checking and/or data collection and recording of adult and pediatric patients in hospitals, medical facilities, ambulatory, sub-acute and sleep study environments.
Cune Suliom
(Division Sign-Off) (Division of Anesthesiology, General Hospital, Infection Control, Dental Devices
K 040 178 510(k) Number:
Prescription Use V (Part 21 CFR 801 Subpart D) AND/OR
Over-The-Counter Use (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)
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K040178
SEP 1 0 2004
# SECTION 7 - SUMMARY OF SAFETY AND EFFECTIVENESS
### Applicant: 1.
SPO Medical Equipment Ltd. Kfir Barkan Bldg. 3 Hagavish Str. P.O.B. 2454 Kfar Saba 44425 ISRAEL Tel: +972-8-6842332 Fax: +972-8-6842374
### Corresponding Official: 2.
Ahava M. Stein, Consultant A. Stein - Regulatory Affairs Consulting Beit Hapa'amon (Box 124) 20 Hata'as Str., Suite 213 44425 Kfar Saba, ISRAEL Tel: +972-9-7670002 Fax: +972-9-7668534
### Device Name and Classification 3.
Pulse Oximeter, CFR classification section 870.2700
#### Device trade or proprietary name: 4.
PulseOx 5500 Finger Device PulseOx 7500 WristWatch Device
#### Common Name: 5.
Pulse Oximeter
#### Classification Name: 6.
CFR classification section 870.2700 and product code DQA, Class II.
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### Description of the Device 7.
The SPO PulseOx pulse oximeter devices monitor the oxygen saturation levels in the blood I no or oximetry, i.e., changes in light intensity as the light is reflected back from human of purse onlinery, now different wavelengths (in the visible and infrared wavelength) are used. Comparisons between the standard signal and the variances can be used to calculate the oxygen saturation of arterial blood. The SPO PulseOx pulse oximeter devices are based the onygon battlizes the reflective method whereby the sensor is located on one side of the relevant body part so as to measure the necessary parameters.
The main components of the SPO pulse oximeter devices are a sensor block, analog block, controller, LCD display and battery.
#### Intended Use: 8.
### PulseOx 5500
The SPO PulseOx 5500 Pulse Oximeter is indicated for use for spot-checking of functional oxygen saturation of arterial hemoglobin (SpO2) and pulse rate of adult and pediatric patients in hospitals, medical facilities, home care, transport and sub-acute environments.
### PulseOx 7500
The SPO PulseOx 7500 Pulse Oximeter, a small, wrist-worn device, is indicated for use is measuring, displaying and storing functional oxygen saturation of arterial hemoglobin (SpO2) and pulse rate. It may be used for spot checking and/or data collection and recording of adult and pediatric patients in hospitals, medical facilities, ambulatory, subacute and sleep study environments.
#### Performance Data: 9.
The following performance tests have been performed on the SPO pulse oximeter devices:
### Bench Studies
Bench studies were performed to verify that the PulseOx devices meet their specifications. Tests results showed that the devices perform within their specification and according to the requirements of FDA Draft Guidance Document of the Non-Invasive Pulse Oximeter.
### Software Validation
Software Validation according to the IEC60601-1-4 standard and the FDA Guidance for the Content of PreMarket Submissions for Software Contained in Medical Devices.
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## Electrical Safety and Electromagnetic Compliance
The device was tested according to the following recognized standards:
IEC 60601-1 Medical Electrical Equipment - Part 1: General Requirements for Safety;
IEC 60601-1-2 Collateral Standard: Electromagnetic Compatibility - Requirements and Tests.
Test results showed that the PulseOx device meet the requirements of these standards.
## Environmental Testing
The PulseOx device will undergo environmental and mechanical testing in accordance With FDA Reviewer Guidance for Premarket Notification Submissions; November 1993; With I DA Reviewer Gallanov Tor Free Branch; Division of Cardiovascular, Respiratory and Neurological Devices.
### Clinical Studies
The performance of the PulseOx devices was validated by three clinical studies:
- A comparison of PulseOx, Masimo/Radical and Arterial Blood Sampling. .
- A comparison of PulseOx 5500/7500 models to Masimo/Radical. .
- A comparison of Palse and accuracy of a reflectance pulse oximeter in comparison to . a standard pulse oximeter in adult patients.
In addition, a meta-analysis was performed to compare the performance of the PulseOx m uddition, a mone anding testing results in accordance with FDA Draft Guidance de rices to orood sampling results results show a sufficient correlation to the Gold Standard.
#### Predicate Devices 10.
The PulseOx pulse oximeter devices are substantially equivalent to the combination of the The I dise Oximetry device (manufactured by Nonin Medical Inc., and subject of Onlyx 9700 I also Oximely at 1100 (the PulSox-3 (manufactured by Minolta and the subject of 510(k) document no. K984570), the Masimo Radical Pulse Oximeter (manufactured by Masimo Corp. and the subject of 510(k) document no. K992340) and to the 3100 WristOx Wrist Pulse Oximeter (manufactured by Nonin Medical Inc. and subject of 510(k) document no. K030668).
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### Technological Characteristics Compared to Predicate Device 11.
The technological characteristics, e.g., overall design, materials, mechanism of action, The toolmological enaracteristics, etc., and the intended use of the PulseOx mode of operation, performance entiraly equivalent to the predicate devices cited above as demonstrated in Section 3 of the 510(k) submission.
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.