The Fetal Monitors are intended for non-invasive monitoring of fetal and maternal physiological parameters during antepartum examination, labor and delivery. They are intended to be used only by trained and qualified personnel in antepartum examination rooms, labor and delivery rooms.
Device Story
Fetal monitors (F30, F45, F50, F80, F85, F90) provide continuous monitoring, display, and recording of fetal/maternal parameters. Inputs: Pulsed Wave Doppler (PWD) ultrasound for fetal heart rate (FHR); pressure-sensitive tocodynamometer (TOCO) for uterine activity (UA); ECG electrodes for maternal heart rate; SpO2 sensors; temperature sensors; respiration rate via thoracic impedance. Principle: PWD detects frequency shifts from fetal heart motion; TOCO measures abdominal wall pressure; oscillometric method for NIBP; light spectra/volume tracing for SpO2. Output: Real-time waveforms, numerical values, and printed reports. Used in antepartum, labor, and delivery rooms by trained clinicians. Benefits: Continuous physiological surveillance to support clinical decision-making during labor and delivery.
Clinical Evidence
Bench testing only. Compliance with IEC 60601-1 (safety), IEC 60601-1-2 (EMC), NEMA UD 2-2004 (acoustic output), IEC 60601-1-8 (alarms), and ISO 10993 (biocompatibility) verified. No clinical data presented.
Technological Characteristics
Multi-parameter monitor; PWD ultrasound (1 MHz); TOCO transducer; ECG (3/5/12-lead); NIBP (oscillometric); SpO2 (LED/optical); temperature (thermal resistance); respiration (thoracic impedance). Connectivity: AC/DC power. Standards: IEC 60601-1, IEC 60601-1-2, NEMA UD 2-2004, IEC 60601-1-8, ISO 10993-5/10. Form factor: Bedside monitor.
Indications for Use
Indicated for non-invasive monitoring of fetal and maternal physiological parameters in pregnant women during antepartum examination, labor, and delivery. Used by trained personnel in clinical settings.
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.
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Project #: M0212013A
This 510(k) Summary of 510(k) safety and effectiveness information is being submitted in accordance with requirements of SMDA 1990 and Title 21, CFR Section 807.92.
The assigned 510(k) Number: K131941
- Date of Preparation: 08/19/2013 l.
- 2. Sponsor Identification
Guangdong Biolight Meditech Co., Ltd Innovation First Road, Technology Innovation Coast Zhuhai, Guangdong, 519085, China
Establishment Registration Number: 3007305624
Contact Person: Ms. Liang, Jing Position: R&D Director Tel: +86-756-3399967 Fax: +86-756-3399989 Email: liang_j@blt.com.cn
## 3. Submission Correspondent
Ms. Diana Hong & Mr. Lee Fu Mid-Link Consulting Co., Ltd P.O. Box 120-119 Shanghai, 200120, China Tel: +86-21-22815850 Fax: 240-238-7587 Email: info@mid-link.net
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Project #: M0212013A
- Proposed Device Identification 4.
Proposed Device Name: Fetal monitors Proposed Device Model: F30, F45, F50, F80, F85 and F90
Classification:
Regulation No .: 21 CFR part 884.2740; Regulation Name: System, Monitoring, Perinatal; Product Code: HGM: Device Class: Class II;
Intended Use Statement
The Fetal Monitors are intended for non-invasive monitoring of fetal and maternal physiological parameters during antepartum examination, labor and delivery. They are intended to be used only by trained and qualified personnel in antepartum examination rooms, labor and delivery rooms.
#### Predicate Device Identification 5.
510(k) Number: K100797 Product Name: Edan F9 Express Dual Fetal/Maternal Monitor Manufacturer: Edan Instrument Inc
## Device Description . 6.
The proposed fetal monitors, including F30, F45, F50, F85 and F90 are intended for providing continuous monitoring, displaying, printing and recording of basic fetal and maternal parameters. including uterine activity (UA), dual fetal heart rate (FHR) and fetal movement (ITM), and extended maternal parameters, including electrocardiograph (ECG), non-invasive blood pressure (NIBP) . Pulse Oxygen Saturation (SpO2) , Pulse Rate (PR), Temperature (TEMP) and Respiration Rate (RESI').
- 7. Non-Clinical Test Conclusion
Non clinical tests were conducted to verify that the proposed device met all design specifications as was Substantially Equivalent (SE) to the predicate device. The test results demonstrated that the proposed device complies with the following standards:
- IEC 60601-1, Medical Electrical Equipment Part 1: General Requirements for Safety, 1988; a) Amendment 1, 1991-11, Amendment 2, 1995.
- IEC 60601-1-2:2007, Medical Electrical Equipment Part 1-2: General Requirements for Salety b) E2-2
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Project #: M0212013A
Collateral Standard: Electromagnetic Compatibility -- Requirements and Tests.
- NEMA UD 2-2004 (R2009), Acoustic Output Measurement Standard for Diagnostic Ultrasound c) Equipment Revision 3 .
- d) IEC 60601-1-8 Ed. 2:2006-10, Medical electrical equipment - Part 1-8: General requirements for basic safety and essential performance - Collateral Standard: General requirements, tests and guidance for alarm systems in medical electrical equipment and medical electrical systems.
- ISO 10993-5:2009 Biological evaluation of medical devices -- Part 5: Tests for In Vitro e) cytotoxicity :
- ISO 10993-10:2002 AMD1 2006, Biological Evaluation of Medical Devices Part 10: Tests for t) irritation and delayed-type hypersensitivity;
- 8. Substantially Equivalent (SE) Discussion
The following table compares the Fetal Monitors to the predicate devices with respect to intended use, technological characteristics and principles of operation, etc.
| Item | Proposed Devices | Predicate Devices | |
|---------------------------|--------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------|------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------|----------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------|
| Product Code | HGM | HGM | |
| Regulation Number | 21 CFR 884.2740 | 21 CFR 884.2740 | |
| Intended Use | The Fetal Monitors are intended for non-invasive<br>monitoring of fetal and maternal physiological<br>parameters during antepartum examination, labor<br>and delivery. They are intended to be used only<br>by trained and qualified personnel in antepartum<br>examination rooms, labor and delivery rooms. | F9 Express fetal & maternal monitor is<br>intended for monitoring physiological<br>parameters of pregnant women during<br>ante-parturn examination, labor and<br>delivery. It is intended to be used<br>only by trained and qualified personnel<br>in antepartum examination rooms, labor<br>and delivery rooms. F9 Express fetal &<br>maternal monitor is intended for<br>providing NonStress testing or fetal<br>monitoring for pregnant women from<br>the 28th week of gestation. In addition, it<br>provides a solution for maternal vital signs<br>monitoring. | |
| Sterile | No | No | |
| Single Use | No | No | |
| Energy Source | AC Power / DC Power | AC Power / DC Power | |
| Safety | Comply with IEC 60601-1 | Comply with IEC 60601-1 | |
| EMC | Comply with IEC 60601-1-2 | Comply with IEC 60601-1-2 | |
| Acoustic Output | Track 1 | Track 1 | |
| Alarming | Comply with NEMA UD2 | Comply with NEMA UD2 | |
| Biocompatibility | Comply with IEC 60601-1-8 | Comply with IEC 60601-1-8 | |
| | No cytotoxicity, irritation and sensitization | No cytotoxicity, irritation and sensitization | |
| Principle of Operation | Fetal Heart Rate | The proposed fetal monitors adopt Pulsed Wave<br>Doppler (PWD). The transducer will emit<br>ultrasonic beam with low energy; Due to the beat<br>of the fetal heart, there will be a relative motion<br>between the fetal heart and ultrasonic beam,<br>which will cause the frequency change of the<br>reflection ultrasonic wave compared with the<br>transmission ultrasonic wave. Fetal heart rate can<br>be calculated based on this frequency change. | The proposed fetal monitors adopt Pulsed<br>Wave Doppler (PWD). The transducer will<br>emit ultrasonic beam with low energy; Due<br>to the beat of the fetal heart, there will be a<br>relative motion between the fetal heart and<br>ultrasonic beam, which will cause the<br>frequency change of the reflection ultrasonic<br>wave compared with the transmission<br>ultrasonic wave. Fetal heart rate can be<br>calculated based on this frequency change. |
| | Manual<br>Fetal<br>Movement | A kick counter is provided with the proposed<br>fetal monitors. A pregnant woman may count the<br>numbers of movements she feels her fetus make,<br>by kicking the counter. The monitor will record,<br>display and print the number kicked. | A kick counter is provided with the proposed<br>fetal monitors. A pregnant woman may<br>count the numbers of movements she feels<br>her fetus make, by kicking the counter. The<br>monitor will record, display and print the<br>number kicked. |
| | Automatic<br>Fetal<br>Movement | FM THRESHOLD (Fetal movement threshold):<br>threshold of the occurrence of automatic fetal<br>movement, can be adjusted from 10% to 80%,<br>FM THRESHOLD represents the percentage of<br>fetal activity intensity, when select 10%, a slight<br>variation of the fetus means a fetal movement;<br>while when select 80%, a strong variation of the<br>fetus means a fetal movement, and it is advised<br>to set to 40%-60%. When FM COUNT is set for<br>AUTO, it means in case of automatic fetal<br>movement, the set is effective.<br>Fetal movement: when the FM COUNT is set for<br>AUTO, if the former and later difference of the<br>fetal movement curve value is more than or<br>equal to the set FM threshold, then the system<br>will automatically add up a FM count. When it<br>frozen, the value has no meaning.<br>AFM (fetal movement curve): display or close<br>AFM on the interface. AFM is a yellow curve | FM THRESHOLD (Fetal movement<br>threshold): threshold of the occurrence of<br>automatic fetal movement, can be adjusted<br>from 10% to 80%, FM THRESHOLD<br>represents the percentage of fetal activity<br>intensity, when select 10%, a slight variation<br>of the fetus means a fetal movement; while<br>when select 80%, a strong variation of the<br>fetus means a fetal movement, and it is<br>advised to set to 40%-60%. When FM<br>COUNT is set for AUTO, it means in case<br>of automatic fetal movement, the set is<br>effective.<br>Fetal movement: when the FM COUNT is<br>set for AUTO, if the former and later<br>difference of the fetal movement curve value<br>is more than or equal to the set FM<br>threshold, then the system will automatically<br>add up a FM count. When it frozen, the<br>value has no meaning. |
| | | | |
| | | relative amounts of diagram, which is related to<br>fetal heart rate and fetal heart amplitude. When<br>one of them has changed, can cause fluctuation<br>in the energy diagram. | close AFM on the interface. AFM is a<br>yellow curve displayed in TOCO area,<br>which means the energy diagram of fetal<br>movement. It is a kind of relative amounts of<br>diagram, which is related to fetal heart rate<br>and fetal heart amplitude. When one of them<br>has changed, can cause fluctuation in the<br>energy diagram. |
| Principle of | Uterine | A pressure-sensitive contraction transducer, | A pressure-sensitive contraction transducer, |
| Operation | Activity | called tocodynamometer (TOCO), is employed | called tocodynamometer (TOCO), is |
| | | in the UA measurement. This TOCO sensor has a | employed in the UA measurement. This |
| | | flat area that is fixed to the skin of a pregnant | TOCO sensor has a flat area that is fixed to |
| | | woman by a band around the belly. The pressure | the skin of a pregnant woman by a band |
| | | required to flatten a section of the wall correlates | around the belly. The pressure required to |
| | | with the internal pressure, thereby providing a | flatten a section of the wall correlates with<br>the internal pressure, thereby providing a<br>measurement of it. |
| | | measurement of it. | |
| | ECG | Before mechanical systole, the heart firstly | Before mechanical systole, the heart firstly |
| | | produces electrical excitement, which results in | produces electrical excitement, which results |
| | | biological current, and conducts the current to | in biological current, and conducts the |
| | | the body surface through tissue and humour. | current to the body surface through tissue |
| | | Different potential changes take place at various | and humour. Different potential changes take |
| | | parts of the body, thus body-surface potential | place at various parts of the body, thus |
| | | differences are formed. Record the changing | body-surface potential differences are |
| | | potential differences to form the dynamic curve, | formed. Record the changing potential |
| | | i.e. ECG, also called body-surface ECG or | differences to form the dynamic curve, i.e. |
| | | regular ECG. | ECG, also called body-surface ECG or |
| | | Through many electrodes connected with ECG…
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.