K032491 · Imagyn Medical Technologies, Inc. · DSB · Sep 4, 2003 · Cardiovascular
Device Facts
Record ID
K032491
Device Name
ECOM CV4 ENDOTRACHEAL CARDIAC OUTPUT MONITOR
Applicant
Imagyn Medical Technologies, Inc.
Product Code
DSB · Cardiovascular
Decision Date
Sep 4, 2003
Decision
SESU
Submission Type
Special
Regulation
21 CFR 870.2770
Device Class
Class 2
Indications for Use
The ECOM CV4 (Endotracheal Cardiac Output Monitor) System is intended for the monitoring of cardiac output by impedance cardiography while providing airway management by oral intubation with an ECOM Endotracheal Tube. The ECOM CV4 System is indicated for use in patients who are expected to be intubated for 24 hours or less and in whom an arterial pressure line is used. The ECOM CV4 System will display the R-Wave Detection and the Impedance Waveforms as well as the patient's Cardiac Output (CO), Stroke Volume (SV), Heart Rate (HR), Systolic and Diastolic Pressures.
Device Story
System comprises ECOM CV4 endotracheal tube and monitor; inputs include high-frequency, low-amplitude electrical current applied via tube to tracheal mucosa; device measures resulting voltage/impedance; monitor also processes ECG and arterial pressure signals via external cables. System displays R-Wave, impedance waveforms, cardiac output (CO), stroke volume (SV), heart rate (HR), and blood pressures. Used in clinical settings for intubated patients; operated by clinicians. Output provides real-time hemodynamic monitoring to assist clinical decision-making during short-term airway management. Benefits include integrated airway and hemodynamic monitoring.
Clinical Evidence
Clinical performance tested with clinical data; results met acceptance criteria. Specific metrics not provided in summary.
Technological Characteristics
Impedance plethysmograph; utilizes high-frequency, low-amplitude electrical current. Components include endotracheal tube, monitor, tube cable, arterial pressure cable, ECG cable, and lead wire. Tested for electrical safety, ASTM standards, and biocompatibility.
Indications for Use
Indicated for patients requiring oral intubation for 24 hours or less who also require an arterial pressure line for monitoring.
Regulatory Classification
Identification
An impedance plethysmograph is a device used to estimate peripheral blood flow by measuring electrical impedance changes in a region of the body such as the arms and legs.
Special Controls
*Classification.* Class II (special controls). The device, when it is a body composition analyzer which is not intended to diagnose or treat any medical condition, is exempt from the premarket notification procedures in subpart E of part 807 of this chapter subject to the limitations in § 870.9.
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## 510(k) Summary - ECOM CV4 System
| 510(k)<br>Summary | This summary of 510(k) safety and effectiveness information is being<br>submitted in accordance with the requirements of 21 C.F.R. § 807.92. |
|--------------------------|-------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------|
| Submitter | Imagyn Medical Technologies, Inc.<br>1 Park Plaza, Suite 1100<br>Irvine, CA 92614 |
| Contact Person | Julie Powell<br>Vice President Quality Assurance / Regulatory Affairs<br>Imagyn Medical Technologies, Inc.<br>1 Park Plaza, Suite 1100<br>Irvine, CA 92614<br>Phone: 269 623 6836<br>Fax: 269 623 6836<br>E Mail: julie.powell@imagyn.com |
| Date Prepared | August 8, 2003 |
| Name | ECOM™ CV4 Endotracheal Cardiac Output Monitor |
| Classification<br>Names | Impedance plethysmograph |
| Device<br>Classification | Regulatory Class: II<br>Product Code: DSB<br>Classification Panels: Cardiovascular Device Panel<br>Regulation Number: 21 CFR 870.2770 |
| Predicate<br>Device(s) | Imagyn Medical Technologies, Inc.<br>ECOM Endotracheal Cardiac Output Monitor<br>510(k) number K021174<br>Clearance date April 29, 2003 |
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| Performance<br>Standards | Performance standards have not been established by the FDA under section<br>514 of the Federal, Food, Drug and Cosmetic Act |
|----------------------------|----------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------|
| Device<br>Description | The ECOM CV4 System consists of an ECOM CV4 Endotracheal Tube and<br>an integrated ECOM CV4 Monitor. The ECOM CV4 Monitor includes a Tube<br>Cable, Arterial Pressure Cable, ECG Cable, ECG Lead Wire, and power<br>cordset. |
| | The ECOM CV4 System applies a high frequency, low amplitude electrical<br>current and measures the resulting voltage directly from the tracheal mucosa<br>by way of an ECOM CV4 Endotracheal Tube. The ECOM CV4 Monitor will<br>display the tube and surface R-Wave and the Impedance Waveforms as well<br>as the patient's Caridac Output (CO), Heart Rate (HR), Stroke Volume (SV),<br>Systolic and Diastolic Pressures. |
| Indications for<br>Use | The ECOM CV4 (Endotracheal Cardiac Output Monitor) System is intended<br>for the monitoring of cardiac output by impedance cardiography while<br>providing airway management by oral intubation with an ECOM Endotracheal<br>Tube. The ECOM CV4 System is indicated for use in patients who are<br>expected to be intubated for 24 hours or less and in whom an arterial pressure<br>line is used. |
| | The ECOM CV4 System will display the R-Wave Detection and the<br>Impedance Waveforms as well as the patient's Cardiac Output (CO), Stroke<br>Volume (SV), Heart Rate (HR), Systolic and Diastolic Pressures. |
| Nonclinical<br>Performance | The ECOM CV4 System was tested and passed all required electrical safety,<br>ASTM, and biocompatibility testing. |
| Clinical<br>Performance | The ECOM CV4 System performance was tested with clinical data and the results<br>met the acceptance criteria. |
| Conclusion | The ECOM CV4 System is substantially equivalent to the 510(k) cleared<br>(K021174) ECOM System. |
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Image /page/2/Picture/1 description: The image is a black and white logo for the U.S. Department of Health & Human Services. The logo features a circular border with the text "DEPARTMENT OF HEALTH & HUMAN SERVICES - USA" arranged around the perimeter. Inside the circle is a stylized image of an eagle or bird with three lines representing its wings or feathers, and below that, three human profiles facing to the right.
Food and Drug Administration 9200 Corporate Boulevard Rockville MD 20850
Imagyn Medical Technologies, Inc. c/o Ms. Julie Powell Vice President, Quality Assurance Regulatory Affairs 1 Park Plaza, Suite 1100 Irvine, CA 92614
Re: K032491
> Trade Name: ECOM CV4 Endotracheal Cardiac Output Monitor Regulation Number: 21 CFR 870.2770 Regulation Name: Impedance plethysmograph Regulatory Class: II (two) Product Code: DSB Dated: August 8, 2003 Received: August 12, 2003
Dear Ms. Powell:
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). You may, therefore, market the device, subject to the general controls provisions of the Act and the limitations described below. 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.
The Office of Device Evaluation has determined that there is a reasonable likelihood that this device will be used for an intended use not identified in the proposed labeling and that such use could cause harm. Therefore, in accordance with Section 513(i)(1)(E) of the Act, the following limitation must appear in the Warnings section of the device's labeling:
Warning: The irregular tracheal cuff surface of the ECOM tracheal tube presents a potential for local pressure injury to the trachea. The safety of the ECOM tracheal tube for more than 24 hours use has not been established. The ECOM tracheal tube should not be inserted when a duration of intubation longer than 24 hours can be anticipated.
SEP - 4 2003
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Page 2 - Ms. Julie Powell
Please note that the above labeling limitations are required by Section 513(i)(1)(E) of the Act. Therefore, a new 510(k) is required before these limitations are modified in any way or removed from the device's labeling.
The FDA finding of substantial equivalence of your device to a legally marketed predicate device results in a classification for your device and permits your device to proceed to the market. This letter will allow you to begin marketing your device as described in your Section 510(k) premarket notification if the limitation statement described above is added to your labeling.
If vour 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); 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 information about the application of other labeling requirements to your device (21 CFR Part 801), please contact the Office of Compliance at (301) 594-4646. Also, please note the regulation entitled, "Misbranding by reference to premarket notification" (21 CFR Part 807.97). You may obtain other general information on your responsibilities under the Act from the Division of Small Manufacturers, International, and Consumer Assistance at its toll-free number (800) 638-2041 or (301) 443-6597 or at its Internet address http://www.fda.gov/cdrh/dsma/dsmamain.html.
Sincerely yours,
Daniel G. Schultz, M.D. Director Office of Device Evaluation Center for Devices and Radiological Health
Enclosure
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## Indications for Use
Page 1 of 1
## 510(k) Number (if known): K0 3249 /
Device Name: ECOM CV4 Endotracheal Cardiac Output Monitor
Indications for Use:
The ECOM CV4 (Endotracheal Cardiac Output Monitor) System is intended for the monitoring of cardiac output by impedance cardiography while providing airway management by oral intubation with an ECOM Endotracheal Tube. The ECOM System is indicated for use in patients who are expected to be intubated for 24 hours or less and in whom an arterial pressure line is used.
The ECOM CV4 System will display the R-Wave Detection and the Impedance Waveforms as well as the patient's Cardiac Output (CO), Stroke Volume (SV), Heart Rate (HR), Systolic and Diastolic Pressure.
## (PLEASE DO NOT WRITE BELOW THIS LINE-CONTINUE ON ANOTHER PAGE OF NEEDED)
Concurrence of CDRH, Office of Device Evaluation (ODE)
(Division Sign-Off)
Division of Cardiovascular Devices
510(k) Number K032491
(Optional Format 3-10-98)
**Prescription Use Only**
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.