The HomMed Sentry IIIB-F Patient Monitor System is designed to measure Patient Vital Signs in the home by patients or in clinical environments by health care providers. The HomMed Sentry IIIB-F Patient Monitor System is available with physicians' orders only. The HomMed Sentry IIIB-F Patient Monitor System measures the following parameters: Non-Invasive Blood Pressures (Systolic and Mean Arterial Pressure), Functional Oxygen Saturation (%SpO₂), Peripheral Pulse Rate (PPR), Pulse Strength, Oral Temperature and Patient Weight via an external scale. The HomMed Sentry IIIB-F Patient Monitor System's optional, compatible devices extend those measurements to glucometer, spirometer, electrocardiogram (ECG) and prothrombin time (PT/INR) monitoring and digital image acquisition. The patient parameter data is collected and displayed by the HornMed Sentry IIIB-F Patient Monitor System. Data can be transmitted via the communication module to a central station where the patient data can be viewed and analyzed.
Device Story
Portable patient vital signs monitor; collects NIBP, SpO2, pulse, oral temperature, weight; optional modules for glucometry, spirometry, ECG, PT/INR, and digital images. Used in home or clinical settings by patients or healthcare providers. Data displayed locally; transmitted via pager network (Skytel/PageNet) or landline modem to central station for retrospective review/analysis by clinicians. Facilitates remote monitoring of physiological functions to support clinical decision-making.
Clinical Evidence
Bench testing only. Testing included EMC, electrical, mechanical durability, safety (operator and patient), and temperature/humidity testing. Results demonstrated compliance with applicable standards (EN 60601-1, IEC 601-1-2, ISO 10993) and performance within specifications.
Technological Characteristics
Portable monitor; internal communication module for data transmission. Sensors: NIBP cuff, pulse oximetry probe, electronic thermometer (Welch Allyn), external scale. Connectivity: Pager network, landline modem. Standards: EN 60601-1 (safety), IEC 601-1-2 (EMC), ISO 10993 (biocompatibility).
Indications for Use
Indicated for patients in home or clinical settings requiring monitoring of vital signs (NIBP, SpO2, pulse, temperature, weight) and optional parameters (glucose, spirometry, ECG, PT/INR, digital images) under physician orders.
Regulatory Classification
Identification
A noninvasive blood pressure measurement system is a device that provides a signal from which systolic, diastolic, mean, or any combination of the three pressures can be derived through the use of tranducers placed on the surface of the body.
Predicate Devices
HomMed Sentry III Patient Monitor System with Card Reader (K014025)
Submission Summary (Full Text)
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## 510(k) Summary
## HomMed Sentry IIIB-F Patient Monitor System
- Consultant Contact: Tommie J. Morgan, Ph.D., President Morgan Consultants Inc. 2018 North Durham Drive Houston, TX 77008 713 880-5111 Voice or 713 880-3494 Fax
- Company: HomMed. LLC 19275 West Capitol Dr., Suite 200 Brookfield , WI 53045 262 783-5440 Voice or 262 783-5441 Fax
HomMed Sentry IIIB-F Patient Monitor System Trade Name:
- Patient Vital Signs Monitor with Options Common Name:
- Classification Name: Cardiovascular and Respiratory Devices, Class II
- Substantial Equivalence Claimed to:
HomMed Sentry III Patient Monitor System with Card Reader K014025
- The HomMed Sentry IIIB-F Patient Monitor System (Sentry IIIB-F) is a portable Device Description: patient vital signs monitoring system. The system measures noninvasive blood pressure, pulse rate, oral temperature, oximetry, and weight. In addition, the system has optional glucometer, spirometer, electrocardiogram (ECG) and prothrombin time (PT/INR) measuring, and digital image acquisition capabilities. The Sentry IIIB-F acquires the patient vital signs data and displays it. The data can also be transmitted via the communication system through the Skytel or PageNet Pager Network to a central station for storage with retrospective display and analysis.
- The HomMed Sentry IIIB-F is intended for in home and/or healthcare facility Indications for Use: applications under physician orders. The use of the system is to allow retrospective review of certain patient physiological functions. The HomMed Sentry IIIB-F can measure and display patient data including noninvasive blood pressure, pulse rate, oral temperature, oximetry, and weight. Additionally, the patient vital signs data can be communicated to a central review station via a pager network with a backup landline telephone modem for telephone communication with the central pager network if necessary.
Sentry IIIB-F provides a noninvasive blood pressure (NIBP) monitor for measurements of a patient's systolic, diastolic, and mean arterial (MAP) blood pressures; pulse oximeter, acquires a pulse rate using an oximeter; oral temperature via an electronic thermometer; weight from an electronic scale. All data collected from these functions as well as optional glucometry, ECG devices, PT/INR monitor and acquired digital images are sent through an internal communication module.
The device will provide fast, reliable measurements on patients when using the appropriate blood pressure cuff. Sentry IIIB-F's pulse oximetry works with the
3/8/04
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Sentry pulse oximetry probes provided by HomMed, providing Sp02 anc pulse rate on all patients. The electronic thermometry requires use of the Welch Allyn oral thermometry probe and probe covers. It provides only cral temperature information.
Comparison with Predicate Devices:
This HomMed Sentry IIIB-F allows uncomplicated measurement and remote monitoring of patient vital signs including weight utilizing the existing technologies of the predicate device, HomMed Sentry III Patient Monitor System with Card Reader.
Determination of Substantial Equivalence:
The performance of each component of the HomMed Sentry IIIB-F has been confirmed to be equivalent to the predicate device HomMed Sentry III Patient Monitor System with Card Reader.
Compliance to Standards and Regulations:
The HomMed Model Sentry 111B-F complies with the following national and international standards:
| Safety | | EN 60601-1 | Medical Electrical Safety |
|--------|--|-------------------|---------------------------|
| | | IEC 601-1-2 | EMC Compliance |
| | | ISO 10993-5,10-11 | Biocompatibility |
Performance Data:
The HomMed Sentry IIIB-F is utilized within the environments for which it and Sentry III with Card Reader are marketed. The Sentry IIIB-F performs consistent with guidelines and standards found in the FDA reviewer's guides for respiratory devices and electronic thermometers. EMC, electrical, mechanical durability, safety (operator and patient), and temperature/humidity testing has been completed demonstrating compliance with applicable standards. The test results demonstrated that the Sentry IIIB-F is in compliance with the guidelines and standards referenced in the FDA reviewer's quides and that it performed within its specifications and functional requirements.
The HomMed Sentry IIIB-F performance is consistent with the HomMed Sentry III with Card Reader performance. Testing done on the Sentry III IIIB-F assures compliance with applicable electrical, safety and healthcare standards. Thus it is the HomMed position that the HomMed Sentry IIIB-F performs as well as the legally marketed predicate device.
This summary of 510(k) safety and effectiveness information is being submitted in accordance with the requirements of FDA regarding patient monitors.
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Image /page/2/Picture/2 description: The image shows the logo for the U.S. Department of Health & Human Services. The logo consists of a circular seal with the words "DEPARTMENT OF HEALTH & HUMAN SERVICES USA" arranged around the perimeter. Inside the circle is a stylized symbol that resembles three abstract shapes, possibly representing human figures or abstract forms. The logo is black and white.
Food and Drug Administration 9200 Corporate Boulevard Rockville MD 20850
AUG 1 0 2004
HomMed, LLC c/o Tommie J. Morgan, Ph.D. President Morgan Consultants Inc. 2018 North Durham Drive Houston, TX 77008
Re: K040651
Ro40031
Trade Name: HomMed Sentry IIIB-F Patient Monitor System Regulation Number: 21 CFR 870.2920 Regulation Name: Telephone Electrocardiograph Transmitter and Receiver Regulatory Class: II (two) Product Code: DXH Dated: July 29, 2004 Received: July 30, 2004
Dear Dr. Morgan:
We have reviewed your Section 510(k) premarket notification of intent to market the device t We have reviewed your Section 9 ro(t) premained is substantially equivalent (for the indications for use stated in the enclosure) to legally marketed predicate devices marketed in interstate for use stated in the encrosule) to regally manat date of the Medical Device Amendments, or to commerce prior to May 26, 1970, the characters and other of the Federal Food, Drug, devices that have been recalssinod in accessful of a premarket approval application (PMA).
and Cosmetic Act (Act) that do not require approval of a premarket approval post of and Cosment Act (Act) that do not require appro the general controls provisions of the Act. The I ou may, merciole, manel the act include requirements for annual registration, listing of general controls provisions of the rise 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 II your device is classified (see above) me existing major regulations affecting your device can
may be subject to such additional controls. Existing major regulations ED t may be subject to suen additional connections, Title 21, Parts 800 to 898. In addition, FDA may be found in the Ood of I casa announceming your device in the Federal Register.
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Page 2 - Tommie J. Morgan, Ph.D.
Please be advised that FDA's issuance of a substantial equivalence determination does not mean Please be advised that I DA 3 issuation of a basean. In other requirements of the Act that FDA has made a decommation administered by other Federal agencies. You must of any I edital statutes and regalations and admited to: registration and listing (21 compry with an the Act 3 requirements, news 801); good manufacturing practice requirements as set CFK Fatt 807), fabeing (21 OFR Part 820); and if applicable, the electronic form in the quality systems (Sections 531-542 of the Act); 21 CFR 1000-1050. product radiation control provisions (Seting your device as described in your Section 510(k) This letter witi anow you to ogen manies. By
premarket notification. The FDA finding of substantial equivalence of your device to a legally prematics notheation: The PDF Intentigation 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 11 you ucate specific advice for your act (301) 594-4646. Also, please note the regulation entitled, Contact the Office of Come of Come are to premarket notification" (21CFR Part 807.97) you may obtain. Other general information on your responsibilities under the Act may be obtained from the Oiller general information on your respational 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,
Neil R.P. Ogden
Bram D. Zuckerman, M Director Division of Cardiovascular Devices Office of Device Evaluation Center for Devices and Radiological Health
Enclosure
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| 510(k) Number (if known): | K04065 |
|---------------------------|--------|
|---------------------------|--------|
## Device Name: HomMed Sentry IIIB-F Patient Monitor System
## Indications for Use
The HomMed Sentry IIIB-F Patient Monitor System is designed to measure Patient Vital Signs in the home by patients or in clinical environments by health care providers. The HomMed Sentry IIIB-F Patient Monitor System is available with physicians' orders only.
The HomMed Sentry IIIB-F Patient Monitor System measures the following parameters: Non-Invasive Blood Pressures (Systolic and Mean Arterial Pressure), Functional Oxygen Saturation (%SpO₂), Peripheral Pulse Rate (PPR), Pulse Strength, Oral Temperature and Patient Weight via an external scale. The HomMed Sentry IIIB-F Patient Monitor System's optional, compatible devices extend those measurements to glucometer, spirometer, electrocardiogram (ECG) and prothrombin time (PT/INR) monitoring and digital image acquisition. The patient parameter data is collected and displayed by the HornMed Sentry IIIB-F Patient Monitor System. Data can be transmitted via the communication module to a central station where the patient data can be viewed and analyzed.
Prescription Use X (21 CFR 807 Subpart D)
Over-th
(21 CE
Over-the-Counter Use (21 CFR 807 Subpart C)
(PLEASE DO NOT WRITE BELOW THIS LINE - - CONTINUE ON ANOTHER PAGE IF NEEDED)
AND/OR
Concurrence of CDRH, Office of Device Evaluation (ODE)
| (Division Sign-Off) | |
|------------------------------------|---------|
| Division of Cardiovascular Devices | |
| 510(k) Number | K040651 |
Page 1 of ___
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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.
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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.
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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.
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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.
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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.
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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.
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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.