UNI-VENT 731 SERIES MODEL EMV+ PORTABLE CRITICAL CARE VENTILATOR
Applicant
Impact Instrumentation, Inc.
Product Code
CBK · Anesthesiology
Decision Date
Apr 7, 2011
Decision
SESE
Submission Type
Traditional
Regulation
21 CFR 868.5895
Device Class
Class 2
Attributes
Therapeutic, Pediatric
Indications for Use
The Model 731EMV+ (EMV+) is indicated for use in the management of infant through adult patients weighing ≥5 kg with acute or chronic respiratory failure or during resuscitation by providing continuous positive-pressure ventilation. It is appropriate for use in hospitals, outside the hospital, during transport and in austere environments where it may be exposed to rain, dust, rough handling and extremes in temperature and humidity. With an appropriate third-party filter in place, it may be operated in environments where chemical and/or biological toxins are present (see External Filter Use). It is not intended to operate in explosive environments. The EMV+ is intended for use by skilled care providers with knowledge of mechanical ventilation, emergency medical services (EMS) personnel with a basic knowledge of mechanical ventilation and by first responders under the direction of skilled medical care providers.
Device Story
Portable critical care ventilator for hospital, transport, and austere environments; provides continuous positive-pressure ventilation. Inputs include patient respiratory parameters; device transforms inputs via pressure/volume targeting to deliver breaths. Modes include Assist/Control (AC), Synchronized Intermittent Mandatory Ventilation (SIMV), and Continuous Positive Airway Pressure (CPAP). Features include Pressure Support (PS) and Noninvasive Positive Pressure (NPPV) with automatic leak compensation (0-15 L/min). Operated by skilled clinicians, EMS personnel, or first responders. Output is mechanical ventilation support; healthcare providers monitor settings and patient response to manage respiratory failure. Benefits include portable, ruggedized life support in extreme conditions.
Clinical Evidence
No clinical data submitted. Bench testing only.
Technological Characteristics
Portable critical care ventilator. Materials and power systems unchanged from predicate. Sensing/actuation: pressure/volume-targeted ventilation. Connectivity: standalone. Standards: ASTM F1100-90, IEC 60601-1, ISO 9919:2005, Mil-Std-461F, Mil-Std-810F. Software: updated to include SIMV and CPAP modes with leak compensation.
Indications for Use
Indicated for infant through adult patients (≥5 kg) with acute or chronic respiratory failure or requiring resuscitation. Contraindicated for use in explosive environments.
Regulatory Classification
Identification
A continuous ventilator (respirator) is a device intended to mechanically control or assist patient breathing by delivering a predetermined percentage of oxygen in the breathing gas. Adult, pediatric, and neonatal ventilators are included in this generic type of device.
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Image /page/0/Picture/0 description: The image shows a logo for IMPACT Instrumentation Inc. The logo features the word "IMPACT" in large, bold letters, superimposed over a world map. Above the logo, there is a handwritten number, "K103318". The logo is simple and clean, with a focus on the company name and a global image.
APR - 7 2011
27 Fairfield Place, West Caldwell, NJ 07006. P.O Box 508, West Caldwell, NJ 07007-0508
## 510(k) Summary
This 510(k) summary consists of a table with the information required in the 510(k) Summary Checklist from the FDA Guidance document. It also includes the completed checklist with approval signature.
| Description of<br>Required<br>Information | Information |
|---------------------------------------------------------|--------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------|
| Owner's<br>Name | Leslie H. Sherman (President) |
| Address | 27 Fairfield Place, West Caldwell NJ 07006 |
| Phone | 973-882-1212 |
| Fax | 973-882-4993 |
| Contact<br>Person | Susan McNevin Ph.D., CQA/ CQE<br>Quality Engineer |
| Date this<br>Summary was<br>prepared | January 4, 2011 |
| Trade name of<br>device | Uni-Vent® 731 Series Model EMV+® Portable Critical Care Ventilator |
| Common<br>name | ventilator |
| Classification<br>name | Continuous Ventilator (21 CFR 868.5895, Product Codes CBK, DQA) |
| Legally<br>marketed<br>device –<br>Equivalence<br>Claim | This device has updated software from the Predicate EMV+ ventilator (K091238). This update provides SIMV (Synchronized Intermittent Mandatory Ventilation) and CPAP (Continuous Positive Airway Pressure) modes with ventilator support options of Pressure Support and Leak Compensation. |
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| Description of<br>Required<br>Information | Information | | | | | | | | | | | | | | | | |
|------------------------------------------------------------------------------------------------------------------------------------------------------------|----------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------|--|--|--|--|--|--|--|--|--|--|--|--|--|--|--|--|
| Description of<br>the device | MODES OF OPERATION<br>The EMV+ offers a range of modes using both pressure and volume targeting that can be selected to optimally manage the patient.<br><br>Assist/Control (AC): patient receives either controlled or assisted breaths. When the patient triggers an assisted breath they receive a breath based on either the volume or pressure target.<br><br>Synchronized Intermittent Mandatory Ventilation (SIMV): patient receives controlled breaths based on the set breathing rate. Spontaneous breaths can be either unsupported or supported using Pressure Support. (The software implementation allows for devices to be configured with and without the SIMV mode feature.)<br><br>Continuous Positive Airway Pressure (CPAP): patient receives constant positive airway pressure while breathing spontaneously. Spontaneous breaths can be either demand flow or supported using Pressure Support. | | | | | | | | | | | | | | | | |
| | ADDITIONAL ADJUNCTS OF OPERATION<br>In addition to Modes of Operation, the EMV+ also provides various adjuncts that can be used to manage the patient. Two adjuncts are Pressure Support (PS) and Noninvasive Positive Pressure (NPPV). The table below shows which adjuncts can be used with which modes. It is possible to use more than one adjunct, if the mode permits. | | | | | | | | | | | | | | | | |
| Mode Breath<br>Target Pressure Support<br>(PS) Noninvasive Positive Pressure<br>Ventilation (NPPV) AC V & P No No SIMV V & P Yes No CPAP N/A Yes Yes | | | | | | | | | | | | | | | | | |
| | Pressure Support (PS): can be used to assist spontaneous breaths in both SIMV and CPAP modes.<br><br>Noninvasive Positive Pressure (NPPV): provides flow during the expiratory phase to maintain the baseline pressure (CPAP) in spontaneously breathing patients with a leaking airway or facemask. The amount of leak compensation depends on the leak flow rate during the expiratory period and ranges from 0 to 15 liters/min and is automatically adjusted by the ventilator in order to maintain the CPAP target. | | | | | | | | | | | | | | | | |
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| Description of<br>Required<br>Information | Information | | | | | | |
|----------------------------------------------------------------|------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------|--|--|--|--|--|--|
| Intended Use<br>of Device | The Intended Use is the same as the Predicate device (K091238):<br>"The Model 731EMV+ (EMV+) is indicated for use in the management of<br>infant through adult patients weighing ≥5 kg with acute or chronic respiratory<br>failure or during resuscitation by providing continuous positive-pressure<br>ventilation. It is appropriate for use in hospitals, outside the hospital, during<br>transport and in austere environments where it may be exposed to rain, dust,<br>rough handling and extremes in temperature and humidity. With an<br>appropriate third-party filter in place, it may be operated in environments<br>where chemical and/or biological toxins are present (see External Filter Use).<br>It is <b>not</b> intended to operate in explosive environments. The EMV+ is<br>intended for use by skilled care providers with knowledge of mechanical<br>ventilation, emergency medical services (EMS) personnel with a basic<br>knowledge of mechanical ventilation and by first responders under the<br>direction of skilled medical care providers. " | | | | | | |
| Comparison<br>Technological<br>Characteristics<br>to Predicate | The changes modify the specification of the device in the following manner:<br>EMV+ (K091238) Modified EMV+ Operating Mode: AC Operating Mode: AC, SIMV, CPAP with<br>and without Pressure support and<br>with and without Noninvasive Positive<br>Pressure Ventilation (NPPV) PEEP: 0 to 25 cm H2O PEEP: 0 to 25 cm H2O (The minimum<br>PEEP in CPAP-NPPV is 3 cm H20) There is no change to the product materials or biocompatibility. There is no change to the power input or battery usage. There is no change to Impact®'s intended use statement. There is no change to the devices' fundamental scientific technology. The operating principals remain the same. The modified EMV+ provides the<br>operator methods consistent with the standard of care for managing patients<br>with acute or chronic respiratory failure. | | | | | | |
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| Description of<br>Required<br>Information | Information | | | | | | | | | | | | | | |
|---------------------------------------------|----------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------|--|--|--|--|--|--|--|--|--|--|--|--|--|--|
| Non-Clinical<br>Performance<br>data | This device meets the same performance criteria as the Predicate (K091238).<br>These criteria are specified by: | | | | | | | | | | | | | | |
| | Standard Standard Title ASTM F1100-90 Ventilators Intended for use in Critical Care IEC 60601-1 Medical Electrical Equipment - Part 1, General<br>Requirements for Safety ISO 9919:2005 Medical electrical equipment- particular requirements<br>for the basic safety and essential performance of pulse<br>oximeter equipment for medical use Additional Environmental Standards: Mil-Std-461F Requirements for the Control of Electromagnetic<br>Interference Characteristics of Subsystems and<br>Equipment Mil-Std-810F Environmental Engineering Considerations and<br>Laboratory Tests | | | | | | | | | | | | | | |
| Clinical<br>Performance | N/A. No clinical performance data is being submitted. | | | | | | | | | | | | | | |
| Safe and<br>Effective as<br>Predicate | The device design and development process is the same as the Predicate<br>(K091238). It was in accordance with: | | | | | | | | | | | | | | |
| | ISO 13485 Quality Systems - Medical Devices ISO 14971 Medical Devices - Application of Risk Management to<br>Medical Devices | | | | | | | | | | | | | | |
| | The resulting device being submitted is as safe and effective as the Predicate<br>(K091238). | | | | | | | | | | | | | | |
| Other<br>Information<br>requested by<br>FDA | Impact Instrumentation, Inc. will provide the FDA with any additional required<br>information. | | | | | | | | | | | | | | |
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Image /page/4/Picture/1 description: The image shows the logo for the Department of Health & Human Services USA. The logo features a stylized eagle with its wings spread, and the text "DEPARTMENT OF HEALTH & HUMAN SERVICES USA" is arranged in a circular pattern around the eagle. The logo is black and white.
Food and Drug Administration 10903 New Hampshire Avenue Document Control Room -WO66-G609 Silver Spring. MD 20993-0002
Susan McNevin. Ph.D Quality Engineer Impact Instrumentation, Incorporated 27 Fairfield Place West Caldwell, New Jersey 07006
## APR - 7 2011
Re: K103318
Trade/Device Name: Uni-Vent®) 731 Series Model EMV4® Portable Critical Care Ventilator Regulation Number: 21 CFR 868.5895 Regulation Name: Continuous Ventilator Regulatory Class: II Product Code: CBK and DQA Dated: March 30, 2011 Received: March 31, 2011
Dear Dr. McNevin:
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.
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Page 2 - Dr. McNevin
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 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/ReportalProblem/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/ResourcesforYou/Industry/default.htm.
Sincerely yours,
Wh for
Anthony Watson, B.S., M.S., M.B.A. Director Division of Anesthesiology, General Hospital, Infection Control and Dental Devices Office of Device Evaluation Center for Devices and Radiological Health
Enclosure
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## Indications for Use
510(k) Number (if known):
Device Name: Uni-Vent®) 731 Series Model EMV+® Portable Critical Care Ventilator
Indications For Use:
The Model 731EMV+ (EMV+) is indicated for use in the management of infant through adult patients weighing ≥5 kg with acute or chronic respiratory failure or during resuscitation by providing continuous positive-pressure ventilation. It is appropriate for use in hospitals, outside the hospital, during transport and in austere environments where it may be exposed to rain, dust, rough handling and extremes in temperature and humidity. With an appropriate third-party filter in place, it may be operated in environments where chemical and/or biological toxins are present (see External Filter Use). It is not intended to operate in explosive environments. The EMV+ is intended for use by skilled care providers with knowledge of mechanical ventilation, emergency medical services (EMS) personnel with a basic knowledge of mechanical ventilation and by first responders under the direction of skilled medical care providers.
Prescription Use AND/OR Over-The-Counter Use (Part 21 CFR 801 Subpart D) (21 CFR 801 Subpart C)
(PLEASE DO NOT WRITE BELOW THIS LINE-CONTINUE ON ANOTHER PAGE IF NEEDED)
Concurrence of CDRH, Office of Device Evaluation (ODE)
L. Schultheis
(Division Sign-Off)
Division of Anesthesiology, General Hospital
Infection Control and Dental Devices
\$10(k) Number: 103318
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.