MODIFICATION TO PHILIPS AVALON FETAL MONITORS FM20 AND FM30
Applicant
Philips Medizin Systeme Boeblingen GmbH
Product Code
HGM · Obstetrics/Gynecology
Decision Date
Aug 24, 2006
Decision
SESE
Submission Type
Special
Regulation
21 CFR 884.2740
Device Class
Class 2
Indications for Use
The Philips Avalon Fetal Monitors FM20 and FM30 are intended for non-invasive and invasive monitoring of the physiological parameters of pregnant women during antepartum testing and labor and delivery. The Avalon FM20 and FM30 are intended for monitoring fetal and maternal heart rates, uterine activity, maternal non-invasive blood pressure (NIBP) and maternal oxygen saturation (SpO2). The Avalon FM20 and FM30 are intended for generating alarms, for displaying, storing and recording patient data and related waves. The Avalon FM20 and FM30 are intended for use by trained health care professionals in labor and delivery rooms and in antepartum testing areas. They are not intended for use in intensive care units, operating rooms or outside the health care facilities.
Device Story
Avalon FM20/FM30 are fetal monitors for labor/delivery and antepartum care. Inputs include ultrasound transducers for fetal heart rate, tocodynamometers for uterine activity, and sensors for maternal ECG, NIBP, and SpO2. Device processes physiological signals to display, store, and record patient data and waveforms; generates alarms for abnormal readings. Operated by trained healthcare professionals in clinical settings. Modification adds capability to monitor fetal heart rates of triplets. Output provides real-time monitoring data to clinicians to support clinical decision-making during labor and delivery, potentially improving fetal and maternal outcomes.
Clinical Evidence
Bench testing only. Verification, validation, and regression testing performed to confirm performance, functionality, and reliability of the modified device against predicate specifications. No clinical data presented.
Technological Characteristics
Fetal monitoring system including ultrasound transducers (e.g., M2736A), tocodynamometers, and maternal vital sign sensors. Connectivity includes patient data display, storage, and recording. Software-based signal processing for fetal/maternal heart rate, uterine activity, NIBP, and SpO2. Class II device.
Indications for Use
Indicated for use by trained health care professionals to monitor physiological parameters (uterine activity, heart rate, ECG, SpO2, NIBP, pulse rate) of pregnant women and fetal heart rates of single fetuses, twins, and triplets in labor/delivery rooms and antepartum testing areas.
Regulatory Classification
Identification
A perinatal monitoring system is a device used to show graphically the relationship between maternal labor and the fetal heart rate by means of combining and coordinating uterine contraction and fetal heart monitors with appropriate displays of the well-being of the fetus during pregnancy, labor, and delivery. This generic type of device may include any of the devices subject to §§ 884.2600, 884.2640, 884.2660, 884.2675, 884.2700, and 884.2720. This generic type of device may include the following accessories: Central monitoring system and remote repeaters, signal analysis and display equipment, patient and equipment supports, and component parts.
Predicate Devices
Philips Avalon Fetal Monitors FM20 and FM30 (K052795)
Submission Summary (Full Text)
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#### 510 (k) Summary
This summary of 510(k) safety and effectiveness information is submitted in accordance with the requirements of the Safe Medical Devices Act of 1990 and 21 C.F.R. §807.92.
- 1. The submitter of this premarket notification is: Markus Stacha Philips Medizin Systeme Boeblingen GmbH Hewlett-Packard-Str. 2 D-71034 Boeblingen, Germany
Tel: ++49 7031 463-2840 Fax: ++49 7031 463-2442 Email: markus.stacha@philips.com
This summary was prepared on July 21, 2006.
- 2. The name of the devices is the Philips Avalon Fetal Monitors FM20 and FM30. Classification names are as follows:
| Device Panel | Classification | ProCode | Description |
|-----------------------------------------------------------|----------------|----------------------------------------------------------------|-----------------------------------------------------------|
| Obstetrical and<br>Gynecological<br>Monitoring<br>Devices | \$884.2660, II | MAA<br>HEL<br>HEK<br>KNG | Fetal ultrasonic monitor and<br>accessories |
| | \$884.2675, II | HGP | Fetal scalp circular (spiral)<br>electrode and applicator |
| | \$884.2700, II | HGS<br>KXO<br>HFO<br>HFN | Intrauterine pressure monitor<br>and accessories |
| | \$884.2720, II | HFM | External uterine contraction<br>monitor and accessories |
| | \$884.2740, II | HGM | Perinatal monitoring system and<br>accessories |
| Circulatory<br>System Devices | \$884.2960, II | HGL | Obstetric ultrasonic transducer<br>and accessories |
| | \$870.1100, II | DSJ | Alarm, Blood Pressure |
| | \$870.1110, II | DSK | Computer, Blood Pressure |
| | \$870.1130, II | DXN | System, Measurement, Blood-<br>Pressure, Non-Invasive |
| | \$870.2060, II | DRQ | Amplifier and Signal<br>Conditioner, Transducer Signal |
| | \$870.2300, II | DRT | Monitor, Cardiac (incl.<br>Cardiotachometer & Rate Alarm) |
| | \$870.2340, II | DPS | Electrocardiograph |
| | \$870.2600, I | DRJ | System, Signal Isolation |
| | \$870.2700, II | DQA | Oximeter |
| | \$870.2810, I | DSF | Recorder, Paper Chart |
| \$870.2900, I | DSA | Cable, Transducer and<br>Electrode, incl. Patient<br>Connector | |
- 3. The modified devices Philips Avalon Fetal Monitors FM20 and FM30 are substantially equivalent to previously cleared
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Philips Avalon Fetal Monitors FM20 and FM30 marketed pursuant to K052795.
- 4. The modification of the Philips Avalon Fetal Monitors FM20 and FM30 introduces the capability of monitoring fetal heart rates of triplets.
- 5. The modified devices Philips Avalon Fetal Monitors FM20 and FM30 have the same intended use as the legally marketed predicate device Philips Avalon Fetal Monitors FM20 and FM30. The Philips Avalon Fetal Monitors FM20 and FM30 are intended for non-invasive and invasive monitoring of the physiological parameters of pregnant women during antepartum testing and labor and delivery. The Avalon FM20 and FM30 are intended for monitoring fetal and maternal heart rates, uterine activity, maternal non-invasive blood pressure (NIBP) and maternal oxygen saturation (SpO2). The Avalon FM20 and FM30 are intended for generating alarms, for displaying, storing and recording patient data and related waves. The Avalon FM20 and FM30 are intended for use by trained health care professionals in labor and delivery rooms and in antepartum testing areas. They are not intended for use in
- 6. The modified devices Philips Avalon Fetal Monitors FM20 and FM30 have the same technological characteristics as the legally marketed predicate devices Avalon Fetal Monitors FM20 and FM30.
intensive care units, operating rooms or outside the health
care facilities.
- 7. Verification, validation, and testing activities were conducted to establish the performance, functionality, and reliability characteristics of the modified device with respect to the predicates. Testing involved performance tests, regression tests, and testing from hazard analysis. Pass/Fail criteria were based on the specifications cleared for the predicate devices and test results showed substantial equivalence. The results demonstrate that the Philips Avalon Fetal Monitors FM20 and FM30 meet all reliability requirements and performance claims.
-2-
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Image /page/2/Picture/1 description: The image is a black and white seal for the Department of Health and Human Services - USA. The seal is circular and contains the text "DEPARTMENT OF HEALTH AND HUMAN SERVICES - USA" around the perimeter. In the center of the seal is a stylized image of three human figures, possibly representing health, family, and community.
Food and Drug Administration 9200 Corporate Boulevard Rockville MD 20850
### AUG 2 4 2006
Mr. Markus Stacha Senior Regulatory Affairs Engineer Philips Medizin Systeme Böblingen GmbH Hewlett-Packard-Str. 1 71034 Böblingen GERMANY
Re: K062137
Trade/Device Name: Philips Avalon Fetal Monitors FM20 and FM30 Regulation Number: 21 CFR 884.2740 Regulation Name: Perinatal monitoring system and accessories Regulation Number: 21 CFR 870.1130 Regulation Name: Noninvasive blood pressure measurement system Regulatory Class: II Product Code: HGM and DXN Dated: July 21, 2006 Received: July 26, 2006
Dear Mr. Stacha:
We have reviewed your Section 510(k) premarket 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.
This determination of substantial equivalence applies to the following ultrasound transducer intended for use with the Philips Avalon Fetal Monitors FM20 and FM30, as described in your premarket notification:
Transducer Model Number
M2736A, 1 MHz Ultrasound Transducer
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### Page 2 - Mr. Markus Stacha
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.
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 determination of substantial equivalence is granted on the condition that prior to shipping the first device, you submit a postclearance special report. This report should contain complete information, including acoustic output measurements based on production line devices, requested in Appendix G. (enclosed) of the Center's September 30, 1997 "Information for Manufacturers Seeking Marketing Clearance of Diagnostic Ultrasound Systems and Transducers." If the special report is incomplete or contains unacceptable values (e.g., acoustic output greater than approved levels), then the 510(k) clearance may not apply to the production units which as a result may be considered adulterated or misbranded.
The special report should reference the manufacturer's 510(k) number. It should be clearly and prominently marked "ADD-TO-FILE" and should be submitted in duplicate to:
> Food and Drug Administration Center for Devices and Radiological Health Document Mail Center (HFZ-401) 9200 Corporate Boulevard Rockville, Maryland 20850
This letter will allow you to begin marketing your device as described in your 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 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
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Page 3 -- Mr. Markus Stacha
- -
Manufacturers, International and Consumer Assistance at its toll-free number (800) 638-2041 or (240) 276-3150 or at its Internet address http://www.fda.gov/cdrh/industry/support/index.html
If you have any questions regarding the content of this letter, please contact Mr. Glenn Bell at (301) 594-1180.
Sincerely yours,
David A. Leppsm
for
Nancy C. Brogdon Director, Division of Reproductive, Abdominal and Radiological Devices Office of Device Evaluation Center for Devices and Radiological Health
Enclosures
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# Indications for Use
## 510(k) Number (if known):_KOG2 137
Device Name: Philips Avalon Fetal Monitors FM20 and FM30.
### Indications for Use:
Avalon Fetal Monitor FM30:
Indicated for use by trained health care professionals whenever there is a need for monitoring of the physiological parameters uterine activity, heart rate, ECG, oxygen saturation, non-invasive blood pressure, and pulse rate of pregnant women and the fetal heart rates of single fetuses, twins, and triplets in labor and delivery rooms and in antepartum testing areas.
#### Avalon Fetal Monitor FM20:
Indicated for use by trained health care professionals whenever there is a need for monitoring of the physiological parameters uterine activity, heart rate, non-invasive blood pressure, pulse rate of pregnant women and the fetal heart rates of single fetuses, twins, and triplets in labor and delivery rooms and in antepartum testing areas.
Prescription Use Yes Over-The-Counter Use No AND/OR (Part 21 CFR 801 Subpart D) (21 CFR 807 Subpart C) (PLEASE DO NOT WRITE BELOW THIS LINE-CONTINUE ON ANOTHER PAGE OF NEEDED)
Concurrence of CDRH, Office of Device Evaluation (ODE)
David A. Seymour
(Division Sign-Off) Division of Reproductive, Abdomi 510(k) Number
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.