The BreatheSuite MDI Device is an electronic device intended for single patient use of patients 5 years of aqe and older. It assists patients in recording and monitoring the actuations and technique of prescribed metered dose inhaler (MDI) usage. The BreatheSuite System is composed of the disposable, battery powered, portable BreatheSuite MDI Device and a mobile application. The BreatheSuite MDI Device is an accessory designed to work with an MDI by attaching to the top of the canister of the inhaler. The BreatheSuite MDI Device does not interfere with reqular MDI usage and can be removed and reattached with ease. The BreatheSuite MDI Device does not actuate the inhaler but rather gathers information based on manual MDI usage. The BreatheSuite MDI Device measures the parameters of MDI use and records them for review by the patient. The BreatheSuite application records, stores, and transmits usage events from the BreatheSuite MDI Device to a remote storage system. Furthermore, BreatheSuite MDI reminds the patient of important steps of MDI use through visual feedback in the BreatheSuite application. The output of the BreatheSuite System is not intended to diagnose or replace a diagnosis provided by a licensed physician. The BreatheSuite system is not intended for use as an MDI medication dose counter, nor is it intended to indicate the quantity of medication remaining in an MDI. The BreatheSuite MDI Device is not intended to replace a physician's advice or inhaler labels; patients are expected to always follow their doctor's advice and inhaler labels. The BreatheSuite System can be used both indoors and outdoors as well as in home, work and clinical settings. The BreatheSuite System may also be used in clinical trials where researchers need to know information about use of an MDI Medication(s) by a participant.
Device Story
BreatheSuite MDI Device is a battery-powered, portable accessory that attaches to the top of a metered dose inhaler (MDI) canister. It uses internal sensors to monitor MDI usage and technique, including date/time of use, shaking duration, coordination between actuation and inhalation, and inhalation duration. The device does not actuate the inhaler or interfere with medication delivery. Data is transmitted via Bluetooth Low Energy (BLE) to a mobile application, which records, stores, and transmits events to a remote storage system. The app provides visual feedback to remind patients of correct MDI usage steps. Used in home, work, or clinical settings by patients or in clinical trials. Healthcare providers review the recorded usage and technique data to support patient management. The device does not diagnose, count doses, or indicate remaining medication.
Clinical Evidence
No clinical testing was required. Substantial equivalence was established through non-clinical performance testing, including biocompatibility (ISO 10993), electrical safety (IEC 60601-1), EMC (IEC 60601-1-2), software verification/validation, and performance testing (Delivered Dose Uniformity, Aerosol Particle Size Distribution, depression force, and technique measurement accuracy). Usability evaluation confirmed successful use scenarios.
Technological Characteristics
Microprocessor-controlled electronic accessory; attaches to MDI canister. Features internal sensors for technique measurement, BLE connectivity, and non-rechargeable battery. Complies with IEC 60601-1 (safety), IEC 60601-1-11 (home-use), and IEC 60601-1-2 (EMC). Biocompatibility per ISO 10993. Software verification/validation performed.
Indications for Use
Indicated for patients 5 years of age and older to assist in recording and monitoring actuations and technique of prescribed metered dose inhaler (MDI) usage.
Regulatory Classification
Identification
A nebulizer is a device intended to spray liquids in aerosol form into gases that are delivered directly to the patient for breathing. Heated, ultrasonic, gas, venturi, and refillable nebulizers are included in this generic type of device.
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Image /page/0/Picture/0 description: The image shows the logo of the U.S. Food and Drug Administration (FDA). The logo consists of two parts: the Department of Health & Human Services logo on the left and the FDA logo on the right. The FDA logo includes the letters "FDA" in a blue square, followed by the words "U.S. FOOD & DRUG ADMINISTRATION" in blue text.
BreatheSuite Inc Brett Vokey Founder & CEO Suite 301 - 215 Water Street St. John's Newfoundland. Canada A1C 6C9
# Re: K203155
Trade/Device Name: BreatheSuite MDI Device Regulation Number: 21 CFR 868.5630 Regulation Name: Nebulizer Regulatory Class: Class II Product Code: CAF Dated: August 15, 2021 Received: August 17, 2021
Dear Brett Vokey:
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 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
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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 (QS) 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 medical devices and radiation-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.
Brandon L. Blakely, Ph.D. Acting Assistant Director DHT1C: Division of 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) K201355
Device Name BreatheSuite MDI Device
#### Indications for Use (Describe)
The BreatheSuite MDI Device is an electronic device intended for single-patient use of patients 5 years of age and older. It assists patients in recording and monitoring the actuations and technique of prescribed metered dose inhaler (MDI) usage. The BreatheSuite System is composed of the disposable, battery powered, portable BreatheSuite MDI Device and a mobile application.
The BreatheSuite MDI Device is an accessory designed to work with an MDI by attaching to the top of the canister of the inhaler. The BreatheSuite MDI Device does not interfere with regular MDI usage and can be reattached with ease. The BreatheSuite MDI Device does not actuate the inhaler but rather gathers information based on manual MDI usage.
The BreatheSuite MDI Device measures the parameters of MDI use and records them for review by the patient. The BreatheSuite application records, stores, and transmits usage events from the BreatheSuite MDI Device to a remote storage system. Furthermore, BreatheSuite MDI reminds the patient of important steps of MDI use through visual feedback in the BreatheSuite application.
The output of the BreatheSuite System is not intended to diagnose or replace a diagnosis provided by a licensed physician. The BreatheSuite system is not intended for use as a MDI medication dose counter, nor is it intended to indicate the quantity of medication remaining in an MDI. The BreatheSuite MDI Device is not intended to replace a physician's advice or inhaler labels; patients are expected to always follow their doctor's advice and inhaler labels.
The BreatheSuite System can be used both indoors as well as in home and work settings.
The BreatheSuite System may also be used in clinical trials where researchers need to know information about use of a MDI Medication(s) by a participant.
| Type of Use (Select one or both, as applicable) | |
|-------------------------------------------------|---------------------------------------------|
| Prescription Use (Part 21 CFR 801 Subpart D) | Over-The-Counter Use (21 CFR 801 Subpart C) |
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# 510(k) Summary As required by 21 CFR 807.92(c) for BreatheSuite MDI Device
Founder and CEO
Phone number: 709-765-1002
- 1. Submission Sponsor BreatheSuite Inc. Suite 301 – 215 Water Street St. John's, Newfoundland, Canada A1C 6C9 Phone: 709-765-1002 Contact: Brett Vokey, Founder and CEO 2. Submission Correspondent Brett Vokey
- September 14th, 2021 3. Date Prepared
#### 4. Device Identification
| Trade or Proprietary Name: | BreatheSuite MDI Device |
|----------------------------|----------------------------------------------|
| Common or Usual Name: | BreatheSuite MDI Device; BreatheSuite Device |
| Classification Name: | Nebulizer |
| Classification Regulation: | 868.5630 |
| Product Code: | CAF |
| Device Class: | Class II |
| Classification Panel: | Anesthesiology |
- 5. Legally Marketed Predicate Device Primary Predicate Device: Propeller System Model 2 (K142516)
- Reference Predicate Device: CapMedic (K183586)
# 6. Device Description
The BreatheSuite MDI Device is a Metered Dose Inhaler (MDI) accessory that monitors inhaler usage and inhaler technique metrics.
The BreatheSuite MDI Device mounts on top of an MDI to measure when and how patients use their inhalers. The device uses internal sensors to record parameters of MDI use and technique including date and time of usage; MDI shaking duration; coordination between MDI actuation and the start of inhalation; and inhalation duration.
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By pairing with the BreatheSuite app via Bluetooth Low Energy (BLE) communications, the user receives reports on each inhaler dosage and on their inhalation technique. The user may share their use and technique information with their physicians and/or healthcare providers.
### 7. Intended Use
The BreatheSuite MDI Device is an electronic device intended for single patient use of patients 5 years of aqe and older. It assists patients in recording and monitoring the actuations and technique of prescribed metered dose inhaler (MDI) usage. The BreatheSuite System is composed of the disposable, battery powered, portable BreatheSuite MDI Device and a mobile application.
The BreatheSuite MDI Device is an accessory designed to work with an MDI by attaching to the top of the canister of the inhaler. The BreatheSuite MDI Device does not interfere with reqular MDI usage and can be removed and reattached with ease. The BreatheSuite MDI Device does not actuate the inhaler but rather gathers information based on manual MDI usage.
The BreatheSuite MDI Device measures the parameters of MDI use and records them for review by the patient. The BreatheSuite application records, stores, and transmits usage events from the BreatheSuite MDI Device to a remote storage system. Furthermore, BreatheSuite MDI reminds the patient of important steps of MDI use through visual feedback in the BreatheSuite application.
The output of the BreatheSuite System is not intended to diagnose or replace a diagnosis provided by a licensed physician. The BreatheSuite system is not intended for use as an MDI medication dose counter, nor is it intended to indicate the quantity of medication remaining in an MDI. The BreatheSuite MDI Device is not intended to replace a physician's advice or inhaler labels; patients are expected to always follow their doctor's advice and inhaler labels.
The BreatheSuite System can be used both indoors and outdoors as well as in home, work and clinical settings.
The BreatheSuite System may also be used in clinical trials where researchers need to know information about use of an MDI Medication(s) by a participant.
# 8. Comparison of Technological Characteristics
Technological characteristics of the BreatheSuite MDI Device are equivalent to the primary and reference predicate device listed above. They are both microprocessor-controlled electronic devices that fit onto the top of an MDI, using a combination of sensors to detect inhaler use which is logged to compile inhaler usage history.
The BreatheSuite MDI Device has equivalent technological characteristics to the predicate device in terms of:
- . Attachment to the top of a compatible MDI canister.
- . Microprocessor control and use of an internal clock to log date and time of inhaler usage events.
- Power supply being an internal non-rechargeable battery and shelf life.
- Wireless data transmission through Bluetooth Low Energy.
- No interference with inhaler operation, medication delivery, label obstruction or dose counter. .
- Application that records, stores and transmits usage events from the device to a remote . storage system.
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The BreatheSuite MDI Device has differing technological characteristics from the predicate device in terms of:
- . Additional sensors to capture inhaler usage technique parameters.
- . Unique housing shape to accommodate additional internal sensors to measure inhaler technique characteristics.
- . Unique device electronics updated to current technology and to accommodate additional sensors to measure inhaler technique.
These design changes were verified by non-clinical testing to establish equivalent performance to the predicate device.
# 9. Non-Clinical Performance Testing
Non-clinical testing and evaluation of the BreatheSuite MDI has been completed to demonstrate substantial equivalence including biocompatibility evaluation, electrical safety and electromagnetic compatibility testing, software verification and validation testing, performance testing, and usability evaluation.
# Biocompatibility Evaluation
The biocompatibility evaluation for the BreatheSuite MDI Device was conducted in accordance with the FDA quidance Use of International Standard ISO 10993-1, "Biological evaluation of medical devices - Part 1: Evaluation and testing within a risk management process" (16 Jun 2016), to meet requirements from the following standards: ISO 10993-1:2009 (biocompatibility), ISO 10993-5:2009 (cytotoxicity) and ISO 10993-10:2010 (sensitization and intracutaneous irritation).
# Electrical Safety and Electromagnetic Compatibility (EMC) Testing
Electrical safety and EMC testing was conducted by external laboratories on the BreatheSuite MDI Device. The device complies with the following standards: IEC 60601-1:2012 (general safety), IEC 60601-1-11:2015 (home-use safety). IEC 60601-1-2:2014 Ed 4.0 and FCC Part 15 Subpart B & ICES-003:2019 (electromagnetic compatibility). Information was provided according to FDA quidance Information to Support a Claim of Electromagnetic Compatibility (EMC) of Electrically-Powered Medical Devices (11 Jul 2016).
# Software Verification and Validation Testing
Software verification and validation testing was conducted to ensure correct functionality for the BreatheSuite MDI software release, for all software components. Documentation was provided as recommended by FDA quidance Content of Premarket Submissions for Software in Medical Devices (11 May 2005), Off-The-Shelf Software Use in Medical Devices (27 Sep 2019), and Content of Premarket Submissions for Management of Cybersecurity in Medical Devices (2 Oct 2014).
# Performance Testing
Performance testing was conducted to establish correct functionality and compatibility of the BreatheSuite MDI inhaler according to requirements, including:
- . Delivered Dose Uniformity (DDU) and Aerosol Particle Size Distribution (APSD) testing to confirm that the addition of the BreatheSuite MDI Device does not have an effect on medication delivery for compatible MDIs.
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Image /page/6/Picture/1 description: The image shows the logo for BreatheSuite. The logo consists of a stylized pair of wings above the text "BreatheSuite". The wings are blue and are arranged in a V-shape. The text is also blue and is in a sans-serif font.
- Battery performance (Shelf Life) testing to confirm substantial equivalence to the shelf life of . the predicate.
- . MDI Compatibility testing to confirm substantial equivalence to the predicate in terms of compatible MDIs.
- . Dose counting testing to confirm the BreatheSuite MDI Device does not inhibit the dose counter on any compatible metered dose inhaler.
- . Depression Force Testing to confirm the BreatheSuite MDI Device does not change the force required to actuate any compatible metered dose inhaler.
- . Device Fit and Label Obscuration testing to confirm the BreatheSuite MDI Device does not permanently obscure the MDI label.
- . Technique Measurement testing to confirm the BreatheSuite MDI Device obtains and records correct technique information including inhaler shaking, orientation timing and inhalation duration for all compatible MDIs according to requirements.
# Usability Testing
Usability evaluation of the BreatheSuite MDI Device was carried out to evaluate use scenarios and critical tasks indicated by the usability risk analysis for the BreatheSuite MDI Device, and established validity of the results obtained from testing carried out in accordance with the FDA quidance Applying Human Factors and Usability Engineering to Medical Devices (3 Feb 2016).
# 10. Clinical Testing
No clinical testing was required for a determination of substantial equivalence of the BreatheSuite MDI Device. The product functionality has been adequately assessed by non-clinical testing as above.
# 11. Validation Testing for OTC:
Validation testing was completed to ensure that the device and it's provided OTC labelling provided all of the necessary information to support over the counter use.
# 12. Hazard Analysis for OTC:
Hazard Analysis for OTC was completed to specifically identify any issues that could arise related to how the patient obtains and learns about the system, registers for the system, installs the sensor, uses the BreatheSuite MDI device during MDI medication use, reviews their data and obtains help & support. No new concerns of safety with the proposed OTC indication were found.
# 13. Conclusion - Statement of Substantial Equivalence
Completed testing carried out for the BreatheSuite MDI Device indicates it meets design, safety, and performance requirements. Device fit, depression force, shelf life, MDI compatibility and DDU/APSD performance is equivalent to the predicate. Inhaler usage parameters are measured with sufficient accuracy for monitoring inhaler use, and the addition of the new sensors does not adversely affect use of the inhaler. Software verification demonstrates that the device should perform as intended in the specified use conditions, and equivalently to the predicate for common software functions. The device meets standard requirements for biocompatibility, electrical safety, and electromagnetic compatibility. The usability evaluation indicates there are no issues for successful use with the compatible inhaler.
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This information indicates that the BreatheSuite MDI Device is substantially equivalent to the predicate device.
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.