The INOmax® DSIR Plus delivery system delivers INOMAX® (nitric oxide for inhalation) therapy gas into the inspiratory limb of the patient breathing circuit in a way that provides a constant concentration of nitric oxide (NO), as set by the user, to the patient throughout the inspired breath. It uses a specially designed injector module, which enables tracking of the ventilator waveforms and the delivery of a synchronized and proportional dose of NO. It may be used with most ventilators. The INOmax® DSIR Plus provides continuous integrated monitoring of inspired O2, NO2, and NO, and a comprehensive alarm system. The INOmax® DSIR Plus incorporates a battery that provides up to 6 hours of uninterrupted NO delivery in the absence of an external power source. The INOmax® DSIR Plus includes a backup NO delivery capability that provides a fixed flow of NO which along with user supplied 10 L/min of oxygen provides 20 ppm in the gas flow to a patients breath. It may also use the INOblender® for backup.
Device Story
System delivers INOMAX (nitric oxide) gas into patient breathing circuit; uses injector module to track ventilator waveforms for synchronized, proportional NO delivery. Dual-channel architecture: delivery channel (CPU, flow controller, injector) and monitoring channel (CPU, gas cells for NO, NO2, O2, user interface/alarms). Monitoring system can shut down delivery if NO concentration exceeds 100 ppm. Includes battery for 6 hours of operation and backup NO delivery mode (fixed flow with 10 L/min O2). Used in NICU and transport settings by clinicians. Output provides constant NO concentration; enables clinicians to manage therapy via integrated monitoring and alarms. Benefits include precise, synchronized gas delivery and safety monitoring for neonates.
Clinical Evidence
No clinical data. Substantial equivalence supported by bench testing and validation of ventilator/gas delivery system protocols.
Technological Characteristics
Dual-channel system (delivery and monitoring). Components: delivery unit, blender, stand/cart, NO gas tanks. Sensing: NO, NO2, O2 gas cells. Power: AC/Battery (6-hour capacity). Connectivity: interfaces with various ventilators/breathing circuits. Software: dual-CPU architecture for independent delivery and monitoring.
Indications for Use
Indicated for neonates requiring nitric oxide (NO) inhalation therapy. Used in NICU and during neonatal transport.
Regulatory Classification
Identification
The nitric oxide administration apparatus is a device used to add nitric oxide to gases that are to be breathed by a patient. The nitric oxide administration apparatus is to be used in conjunction with a ventilator or other breathing gas administration system.
Special Controls
The special control for this device is FDA's “Guidance Document for Premarket Notification Submissions for Nitric Oxide Administration Apparatus, Nitric Oxide Analyzer, and Nitrogen Dioxide Analyzer.”
The special control developed by the agency is a guidance document, entitled Guidance Document for Premarket Notification Submissions for Nitric Oxide Delivery Apparatus, Nitric Oxide Analyzer and Nitrogen Dioxide Analyzer. This guidance document identifies the risks associated with these types of devices and contains information that will help manufacturers address those risks. This document is available on FDA's website at http://www.fda.gov/cdrh/ode/1157.pdf.
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Mallinckrodt Manufacturing LLC % Jamie Yieh Director, Global Regulatory Affairs Mallinckrodt Hospital Products Inc. 1425 U.S. Route 206 Bedminster, New Jersey 07921
Re: K200389
Trade/Device Name: INOmax DSIR Plus Regulation Number: 21 CFR 868.5165 Regulation Name: Nitric Oxide Administration Apparatus Regulatory Class: Class II Product Code: MRN, MRQ, MRP Dated: May 15, 2020 Received: May 18, 2020
Dear Jamie Yieh:
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. Although this letter refers to your product as a device, please be aware that some cleared products may instead be combination products. The 510(k) Premarket Notification Database located at https://www.accessdata.fda.gov/scripts/cdrh/cfdocs/cfpmn/pmn.cfm identifies combination product submissions. 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
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requirements, including, but not limited to: registration and listing (21 CFR Part 807); labeling (21 CFR Part 801); medical device reporting of medical device-related adverse events) (21 CFR 803) for devices or postmarketing safety reporting (21 CFR 4, Subpart B) for combination products (see https://www.fda.gov/combination-products/guidance-regulatory-information/postmarketing-safety-reportingcombination-products); good manufacturing practice requirements as set forth in the quality systems (OS) regulation (21 CFR Part 820) for devices or current good manufacturing practices (21 CFR 4, Subpart A) for combination products; and, if applicable, the electronic product radiation control provisions (Sections 531-542 of the Act); 21 CFR 1000-1050.
Also, please note the regulation entitled, "Misbranding by reference to premarket notification" (21 CFR Part 807.97). For questions regarding the reporting of adverse events under the MDR regulation (21 CFR Part 803), please go to https://www.fda.gov/medical-device-safety/medical-device-reportingmdr-how-report-medical-device-problems.
For comprehensive regulatory information about mediation-emitting products, including information about labeling regulations, please see Device Advice (https://www.fda.gov/medicaldevices/device-advice-comprehensive-regulatory-assistance) and CDRH Learn (https://www.fda.gov/training-and-continuing-education/cdrh-learn). Additionally, you may contact the Division of Industry and Consumer Education (DICE) to ask a question about a specific regulatory topic. See the DICE website (https://www.fda.gov/medical-device-advice-comprehensive-regulatoryassistance/contact-us-division-industry-and-consumer-education-dice) for more information or contact DICE by email (DICE@fda.hhs.gov) or phone (1-800-638-2041 or 301-796-7100).
Sincerely,
Todd Courtney Assistant Director DHT1C: Division of ENT, Sleep Disordered Breathing, Respiratory and Anesthesia Devices OHT1: Office of Ophthalmic, Anesthesia, Respiratory, ENT and Dental Devices Office of Product Evaluation and Quality Center for Devices and Radiological Health
Enclosure
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## Indications for Use
510(k) Number (if known) K200389
Device Name INOmax® DSIR Plus
#### Indications for Use (Describe)
The INOmax® DSIR Plus delivery system delivers INOMAX® (nitric oxide for inhalation) therapy gas into the inspiratory limb of the patient breathing circuit in a way that provides a constant concentration of nitric oxide (NO), as set by the user, to the patient throughout the inspired breath. It uses a specially designed injector module, which enables tracking of the ventilator waveforms and the delivery of a synchronized and proportional dose of NO. It may be used with most ventilators.
The INOmax® DSIR Plus provides continuous integrated monitoring of inspired O2, NO2, and NO, and a comprehensive alarm system.
The INOmax® DSIR Plus incorporates a battery that provides up to 6 hours of uninterrupted NO delivery in the absence of an external power source.
The INOmax® DSIR Plus includes a backup NO delivery capability that provides a fixed flow of NO which along with user supplied 10 L/min of oxygen provides 20 ppm in the gas flow to a patients breath. It may also use the INOblender® for backup.
The target patient population is controlled by the drug labeling for INOMAX® and is currently neonates. The primary targeted clinical setting is the Neonatal Intensive Care Unit (NICU) and secondary targeted clinical setting is the transport of neonates.
Type of Use (Select one or both, as applicable)
| <span style="font-size: 10pt">☑ Prescription Use (Part 21 CFR 801 Subpart D)</span> |
|-------------------------------------------------------------------------------------|
| <span style="font-size: 10pt">☐ Over-The-Counter Use (21 CFR 801 Subpart C)</span> |
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# 510(K) SUMMARY
In accordance with 21 CFR 807.92 the following summary of information is provided:
## Submitter Information
| Date: | February 14, 2020 | |
|---------------------------|-----------------------------------------------------------------------------------|--|
| Company: | Mallinckrodt Manufacturing, LLC<br>6603 Femrite Drive<br>Madison, Wisconsin 53718 | |
| Contact Person: | Jamie Yieh<br>Director, Regulatory Affairs, Devices | |
| Email: | Jamie.Yieh@mnk.com | |
| Telephone: | 908-238-6738 | |
| FAX: | 908-238-6402 | |
| Secondary Contact Person: | David Trueblood | |
| Email: | David.Trueblood@mnk.com | |
| Telephone: | 608-395-3910 | |
### Identification of the Device
| Device Trade Name: | INOmax DSIR® Plus (Delivery System) |
|------------------------|-------------------------------------------------------------------------------------------------------|
| Common Name: | Nitric Oxide Administration Apparatus (primary)<br>Nitric Oxide Analyzer<br>Nitrogen Dioxide Analyzer |
| Classification Name: | Apparatus, Nitric Oxide Delivery, or Apparatus, Nitric<br>Oxide Backup Delivery |
| Device Classification: | Class II – 21 CFR 868.5165 |
| Product Code: | MRN (Primary), MRQ, MRP |
| Predicate Device(s): | K131686 |
The INOmax DSR® Plus uses a "dual-channel" design to ensure the Description of Device safe delivery of INOMAX®. The first channel has the delivery CPU, the flow controller and the injector module to ensure the accurate delivery of NO. The second channel is the monitoring system, which includes a separate monitor CPU, the gas cells (NO, NO2, and O2 cells) and the user interface including the display and alarms. The dual-channel approach to delivery and monitoring permits INOMAX® delivery independent of monitoring but also allows the monitoring system to shutdown INOMAX® delivery if it detects a fault in the
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delivery system such that the NO concentration could become greater than 100 ppm.
The INOmax® DSIR Plus delivery system delivers INOMAX® (nitric Intended Use oxide for inhalation) therapy gas into the inspiratory limb of the patient breathing circuit in a way that provides a constant concentration of nitric oxide (NO), as set by the user, to the patient throughout the inspired breath. It uses a specially designed injector module, which enables tracking of the ventilator waveforms and the delivery of a synchronized and proportional dose of NO. It may be used with most ventilators.
The INOmax® DSIS Plus provides continuous integrated monitoring of inspired O2, NO2, and NO, and a comprehensive alarm system.
The INOmax® DSIR Plus incorporates a battery that provides up to 6 hours of uninterrupted NO delivery in the absence of an external power source.
The INOmax® DSIR Plus includes a backup NO delivery capability that provides a fixed flow of 250 mL/min of NO which along with user supplied 10 L/min of oxygen provides 20 ppm in the gas flow to a patients breathing circuit. It may also use the INOblender® for backup.
The target patient population is controlled by the drug labeling for INOMAX® and is currently neonates. The primary targeted clinical setting is the Neonatal Intensive Care Unit (NICU) and secondary targeted clinical setting is the transport of neonates.
All revisions of INOmax DSm® Plus utilize component technology to Technology deliver Nitric Oxide gas to the patient. The components consist of the Delivery System unit, the blender, a stand/cart and the NO gas tanks. In this revision of the INOmax DSm® Plus, the only changes to the device includes the labeling for compatibility with respiratory care device.
# Determination of Substantial Equivalence
The modified INOmax DSm® Plus has the same intended use as the previously cleared INOmax DSm . All features are identical except those described in the table below.
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| Feature / Specification | INOmax DSIR® - K131686 | INOmax DSIR® Plus with additional<br>ventilator and breathing devices |
|----------------------------------------------------------|----------------------------------------------------------------------------------------------------------------------------------------------|---------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------|
| Labeling for<br>compatibility with<br>ventilator devices | A variety of transport,<br>neonatal, adult/ped, high<br>frequency and anesthesia<br>ventilators, nasal CPAP and<br>nasal high flow cannulas. | Additional ventilator devices include:<br>Covidien PB 980 (K131252) GE Healthcare Carescape R860 (K142679) Fisher & Paykel Healthcare RT330 Breathing Circuit and Optiflow Jr (Class I, 510(k) Exempt under 21 CFR 868.5340)) Bunnell Inc Life Pulse 204 (P850064) Drager Perseus A500 (K133886) Fisher & Paykel Healthcare Airvo 2 (K131895) Drager Carina (K072885) Maquet Servo u/n (K151814) Hamilton C3 (K161450) IMT Medical Bellavista (K163127) Maquet Flow-i (K160665) Bio-Med TV-100 (K173973) Phillips V60 (K102985) |
## Comparison to Predicate Device
### Summary of Nonclinical Tests
In the most recent predicate 510(k) [K131686], the Ventilator/Gas Delivery System Validation Test Protocol was accepted and the outcomes were used as justification on clearance of the submission and modification in labelling for compatibility with respiratory care device.
Specifically in K131686 clearance, the labelling of the INOmax DSIR was being updated to add the following compatible respiratory care devices:
- Hamilton C1 Ventilator (K120574)
- Hamilton T1 Ventilator (K120670)
The Ventilator/Gas Delivery System Validation Test Protocol was used to validated the hazards were mitigated. Since the 510(k) clearance, the protocol has had insignificant differences between validation protocol versions. Ultimately, the requirements necessary for the operation of the INOmax DSIR passed.
Mallinckrodt now has combined the data into a Summary of Bench Testing. This Bench Testing was conducted across all platforms to demonstrate that the INOmax DSIR® Plus performs within
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published specifications. The Hazards identified were from Risk Input that were thru Ventilator Validation based on a protocol which again was recently cleared thru K131686.
# Summary of Clinical Tests
The subject of this premarket submission, INOmax DSn® Plus with updated labeling to interface with additional ventilator and breathing devices, did not require clinical studies to support substantial equivalence.
## Conclusion
Mallinckrodt Manufacturing, LLC considers the INOmax DSm® Plus to be as safe and as effective as the predicate device, with performance substantially equivalent to the predicate device.
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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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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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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.
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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.
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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.
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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.