Cerner FetaLink+ is a software-only application intended for use on iOS mobile devices by obstetrical healthcare clinicians to view near real time the simultaneous measurement of fetal heart rate(s) and uterine contractions waveforms in one view. FetaLink+transforms the ongoing measurements into a visual wave display which conveys the frequency, duration and relative strength of uterine contractions combined with the patient data of pregnant women in the antepartum and/or intrapartum phases of pregnancy.
Device Story
Cerner FetaLink+ is a software application for iOS devices (iPhone/iPad) used by obstetrical clinicians to remotely view near-real-time fetal and maternal monitoring data. The device receives waveform data (fetal heart rates, uterine contractions) and clinical patient information (e.g., maternal vitals, cervical status) from existing hospital fetal monitoring systems. It transforms these inputs into a visual waveform display and patient census list. Clinicians use the mobile interface to monitor laboring patients, view historical waveform data, and check annotations. The device facilitates clinical decision-making by providing remote access to patient status, allowing clinicians to assess the frequency, duration, and strength of contractions alongside fetal heart rate patterns. It is intended for use in clinical environments where network validation has been performed by the customer.
Clinical Evidence
Bench testing only. Validation included unit, functional, regression, exploratory, and assembly testing to ensure functional requirements and hazard mitigations were met. Formative and summative usability testing with task-based walkthroughs and questionnaires evaluated user interface errors, leading to design refinements. Interference testing confirmed no adverse impact from proximity to other clinical devices.
Technological Characteristics
Software-only application for iOS 5.1. Operates on mobile handheld devices with touchscreen/virtual keyboard. Displays read-only waveform data and patient clinical information. Connectivity requires customer-performed network validation. No specific hardware materials or energy sources; relies on host mobile device hardware.
Indications for Use
Indicated for obstetrical healthcare clinicians to monitor pregnant patients in antepartum and/or intrapartum phases. Displays fetal heart rate(s) and uterine contraction waveforms, plus maternal clinical data.
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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Cerner Corporation
Cerner FetaLink+ ™
K 121758
510(k) Summary
# 510(k) Summary
Submitter's Name: Submitter's Address:
Submitter's Telephone:
Submitter's Contact:
Cerner Corporation 10234 Marion Park Drive Kansas City, MO 64137
816-221-1024
Shelley S. Looby, Director Regulatory Affairs 816-201-1368 (office) 816-885-3069 (mobile) slooby@cerner.com
Date 510(k) Summary Prepared:
September 10, 2012
Trade/Proprietary Name: Cerner FetaLink+™ (Version 1.0) FetaLink+™ Common/Usual Name: Classification Name: Obstetrical and Gynecological Monitoring Devices Classification Regulation: 884.2740 Regulation Description: Perinatal Monitoring System and AccessoriesProduct Code: HGM Classification: Class II
Predicate Device:
Manufacturer:
AirStrip OB®
AirStrip Technologies 335 E Sonterra Blvd Suite 200 San Antonio, TX 78258
510(k) Number:
K090269
OCT 9 2012
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510(k) Summary
### Description of the Device
Cerner FetaLink+ is the software application that runs on the user's iPhone or iPad. The application displays patient clinical waveform data including maternal heart rates, maternal oxygen saturation, maternal blood pressure, and uterine contractions. Within the application, the user can view annotations associated to waveform data. .
### Statement of Intended Use
Cerner FetaLink+ is a software-only application intended for use on iOS mobile devices by obstetrical healthcare clinicians to view near real time the simultaneous measurement of fetal heart rate(s) and uterine contractions waveforms in one view. FetaLink+transforms the ongoing measurements into a visual wave display which conveys the frequency, duration and relative strength of uterine contractions combined with the patient data of pregnant women in the antepartum and/or intrapartum phases of pregnancy.
Summary of the technological characteristics of the device compared to the predicate device
| Company | Cerner Corporation | AirStrip Technologies |
|------------------------|----------------------------------------------------------------------|--------------------------------------------------------|
| Model | FetaLink+ | Airstrip OB |
| System Characteristics | | |
| Operating<br>System | IOS 5.1 | IOS 5.0, Android, Blackberry,<br>Windows Mobile |
| Operator<br>Interfaces | Mobile hand-held device with<br>touch screen and virtual<br>keyboard | Mobile hand-held device with<br>touch screen or keypad |
Information to support substantial equivalence claims is summarized below.
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| Company | Cerner Corporation | AirStrip Technologies |
|----------------------------------------|---------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------|--------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------|
| Model | FetaLink+ | Airstrip OB |
| Network<br>Validation<br>Required? | Yes. It is the customer's<br>responsibility to perform network<br>validation. | Yes. It is the customer's<br>responsibility to perform network<br>validation. |
| Patient List | View census (all laboring<br>patients), grouped by location.<br>Displays the following<br>demographic information on the<br>patient list:<br>Patient First Name Patient Middle Name Patient Last Name Patient Age Physician Name Patient Photo | View census (all laboring<br>patients), grouped by location.<br>Displays the following<br>demographic information on the<br>patient list:<br>Patient First Name Patient Middle Name Patient Last Name Patient Age Physician Name |
| Target<br>Population | Pregnant patients monitored on<br>various fetal monitoring medical<br>devices | Pregnant patients monitored on<br>various fetal monitoring medical<br>devices |
| Company | Cerner Corporation | AirStrip Technologies |
| Model | FetaLink+ | Airstrip OB |
| Clinical Data | Displays the following clinical<br>information relevant to<br>pregnancy:<br>• Gravida<br>• Para<br>• Maternal Temperature<br>• Maternal Pulse<br>• Maternal Systolic BP<br>• Maternal Diastolic BP<br>• Maternal SPO2<br>• Cervical Dilation<br>• Cervical Effacement<br>• Fetal Station<br>• Fetal Count<br>• Membrane Status<br>• Epidural Status<br>• EDD<br>• EGA | Displays the following clinical<br>information relevant to<br>pregnancy:<br>• Gravida<br>• Para<br>• Maternal Temperature<br>• Maternal Pulse<br>• Maternal Systolic BP<br>• Maternal Diastolic BP<br>• Maternal SPO2<br>• Cervical Dilation<br>• Cervical Effacement<br>• Fetal Station<br>• Fetal Count<br>• Membrane Status<br>• Epidural Status<br>• EDD |
| Live waveform<br>data | Graphical display of fetal heart<br>rates and contraction data in<br>near real time. Specifically: Will<br>display the following read-only<br>waveform elements:<br>• Baby 1 Heart Rate<br>Waveform Data<br>• Baby 2 Heart Rate<br>Waveform Data<br>• Baby 3 Heart Rate<br>Waveform Data<br>• Baby 4 Heart Rate<br>Waveform Data<br>• Maternal Uterine Activity<br>Waveform Data<br>• Annotations | Graphical display of fetal heart<br>rates and contraction data in<br>near real time. Specifically: Will<br>display the following read-only<br>waveform data elements:<br>• Baby 1 Heart Rate<br>Waveform Data<br>• Baby 2 Heart Rate<br>Waveform Data<br>• Maternal Uterine Activity<br>Waveform Data<br>• Annotations |
| Company | Cerner Corporation | AirStrip Technologies |
| Model | FetaLink+ | Airstrip OB |
| Historical view<br>of waveform<br>data | Ability to navigate to view<br>historical waveform data of the<br>current monitored episode.<br>Specifically: Will display the<br>following read-only historical<br>waveform data elements:<br>Baby 1 Heart Rate<br>Waveform Data Baby 2 Heart Rate<br>Waveform Data Baby 3 Heart Rate<br>Waveform Data Baby 4 Heart Rate<br>Waveform Data Maternal Uterine Activity<br>Waveform Data Annotations | Ability to navigate to view<br>historical waveform data of the<br>current monitored episode.<br>Specifically: Will display the<br>following read-only historical<br>waveform data elements:<br>Baby 1 Heart Rate<br>Waveform Data Baby 2 Heart Rate<br>Waveform Data Maternal Uterine Activity<br>Waveform Data Annotations |
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Like Airstrip OB, Cerner FetaLink+ is designed to be used by obstetrical health providers in a clinical setting. Both systems share the capabilities listed below:
- · Provide a dynamic near real time view of the graphical display of the relationship between fetal heart rates and contraction data which can be accessed remotely using a hand held device
## Summary of Performance Testing
The testing performed was intended to ensure the functional requirements have been implemented and that hazards identified in the Device Hazard Analysis have been mitigated.
Cerner's validation demonstrated that all functional requirements and hazard analysis software mitigations for Cerner FetaLink+ were executed and the expected results achieved. Based on the results of the testing performed, Cerner FetaLink+ was evaluated to be a safe and effective device for use in a live patient environment.
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Cerner Corporation
As part of the development and release process, the software goes through internal testing, which includes the following:
- . Unit Testing (Verification)
- . Functional Testing (Validation)
- Regression Testing .
- Exploratory Testing .
- Assembly Testing ●
## Conclusions
Functional testing, which validated that all functional requirements for the software have been met, were completed prior to formative and summative usability with no outstanding issues identified.
Formative and summative usability, which involved task-based walkthroughs and post-test questionnaire, evaluated possible use errors in the user interface. Based on the results, changes were implemented to mitigate identified use errors.
The results of summative usability and the mitigations applied based on those results show that residual risk has been reduced as low as reasonably practicable.
Interference testing was completed in order to identify and mitigate any risks of interference from clinical or non-clinical devices used in close proximity to the mobile device on which the software resides.
FetaLink+has been found to be adequately safe and effective for the intended users, its intended uses, and use environments.
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## DEPARTMENT OF HEALTH & HUMAN SERVICES
Image /page/6/Picture/1 description: The image shows the seal of the Department of Health and Human Services (HHS) of the United States. The seal features a stylized eagle with three lines forming its body and wings, symbolizing health, services, and people. The eagle is encircled by the words "DEPARTMENT OF HEALTH & HUMAN SERVICES - USA" in a circular arrangement.
#### Public Health Service
OCT
Food and Drug Administration 10903 New Hampshire Avenue Document Control Room -WO66-G609 Silver Spring, MD 20993-0002
9 2012
Ms. Shelley S. Looby. MT(ASCP)BB Director, Regulatory Affairs/Quality Assurance Cerner Corporation 10234 Marion Park Drive KANSAS CITY MO 64137
Re: K121758
> Trade/Device Name: Cerner FetaLink+TM Regulation Number: 21 CFR§ 884.2740 Regulation Name: Perinatal monitoring system and accessories Regulatory Class: II Product Code: HGM Dated: September 17, 2012 Received: September 19, 2012
Dear Ms. Looby:
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 application (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. Please note: CDRH does not evaluate information related to contract liability warranties. We remind you, however, that device labeling must be truthful and not misleading.
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.
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); medical device reporting (reporting of medical
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device-related adverse events) (21 CFR 803); 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.
If you desire specific advice for your device on our labeling regulation (21 CFR Part 801), please go to http://www.fda.gov/AboutFDA/CentersOffices/CDRH/CDRHOffices/ucm115809.htm for the Center for Devices and Radiological Health's (CDRH's) Office of Compliance. Also, please note the regulation entitled, "Misbranding by reference to premarket notification" (21CFR Part 807.97). For questions regarding the reporting of adverse events under the MDR regulation (21 CFR Part 803), please go to
http://www.fda.gov/MedicalDevices/Safety/ReportaProblem/default.htm for the CDRH's Office of Surveillance and Biometrics/Division of Postmarket Surveillance.
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) 796-7100 or at its Internet address
http://www.fda.gov/MedicalDevices/Resourcesfor You/Industry/default.htm.
Sincerely yours,
Sincerely yours,
Benjamin K. Evans
Benjamin R. Fisher, Ph.D. Director Division of Reproductive, Gastro-Renal, and Urological Devices Office of Device Evaluation Center for Devices and Radiological Health
Enclosure
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## Indications for Use
510(k) Number (if known): K121758 Device Name: Cerner FetaLink+ ™
Indications for Use:
Cerner FetaLink+ is a software-only application intended for use on iOS mobile devices by obstetrical healthcare clinicians to view near real time the simultaneous measurement of fetal heart rate(s) and uterine contractions waveforms in one view. FetaLink+transforms the ongoing measurements into a visual wave display which conveys the frequency, duration and relative strength of uterine contractions combined with the patient data of pregnant women in the antepartum and/or intrapartum phases of pregnancy.
Prescription Use _X .__ (Part 21 CFR 801 Subpart D) Over-The-Counter Use _n.a._ (21 CFR 801 Subpart C)
(PLEASE DO NOT WRITE BELOW THIS LINE – CONTINUE ON ANOTHER PAGE IF NEEDED)
Denjar.
(Division Sign-Of
Concurrence of CDRH, Office of Device Evaluation (ODE)
090 2012
AND/OR
(Division Sign-Off)
Division of Reproductive, Gastro-Renal, and
Urological Devices
510(k) Number K121758
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.