The SmartTouch is intended for single-patient use as an electronic data capture accessory for recording actuations of prescribed MDI usage. This may be used in the following applications: - In clinical trials, where researchers need to know when a patient has actuated their trial MDI . medication; - In clinical practice, where specialists, general practitioners, nurses, and educators need to know if . a patient has actuated their prescribed MDI medication. - In self-management, where patients need to track their medication use as part of their . management plan. The SmartTouch is not intended to indicate remaining quantity of medication in an MDI and does not include a dose counting function.
Device Story
SmartTouch is a clip-on electronic accessory for Metered Dose Inhalers (MDI). It uses optical and pressure sensors to detect and log the date and time of MDI actuations. The device features an LED indicator and a control button for status checks and manual communication initiation. Data is transmitted wirelessly via Bluetooth to a communications device for remote review by clinicians or researchers. Used in clinical trials, clinical practice, and patient self-management to monitor medication adherence. It does not measure remaining medication or count doses. The device benefits patients and providers by providing objective, time-stamped compliance data to support treatment management.
Clinical Evidence
No clinical data. Safety and effectiveness were established through bench testing, including functional verification of the MDI presence and actuation sensor system, software verification, and compliance with IEC 60601 series standards (electrical safety, EMC, environmental performance) and FCC radio frequency regulations.
Technological Characteristics
Clip-on MDI accessory; microprocessor-controlled; internal battery power; optical and pressure sensors for actuation detection; Bluetooth wireless connectivity; software-based data logging. Complies with IEC 60601 series and FCC standards.
Indications for Use
Indicated for single-patient use to record actuations of prescribed Metered Dose Inhalers (MDI). Applicable for patients in clinical trials, clinical practice (monitored by specialists, GPs, nurses, educators), and self-management plans. Not for dose counting or indicating remaining medication quantity.
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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K 133951
Image /page/0/Picture/1 description: The image shows the date APR 2 5 2014 at the top. Below the date is the logo for nexus6 LTD. The logo is black and white.
Nexus 6 Limited Suite 205, 8 Commerce Street, Auckland 1010, New Zealand PO Box 106-612, Auckland 1143, New Zealand Phone +64 9 307 2771
20 December 2013
### 510(k) SUMMARY
This summary of 510(k) sofety and effectiveness information is submitted in accordance with the requirements of 21 CFR §807.92:
#### (a)(1) Submitter Information
| Company Details: | Refer to information above |
|------------------|-------------------------------------------|
| Contact Person: | Garth Sutherland, Chief Executive Officer |
#### (a)(2) Name of the Device
| Model Number / Name: | SmartTouch |
|----------------------|------------------------------------------------------|
| Classification Name: | Nebulizer (Direct Patient Interface) |
| | Anesthesiology Devices 21 CFR 868 5630 Class II, CAF |
#### (a)(3) Identification of Legally Marketed Devices
K091803, SmartTrack System, Nexus6 Limited
#### (a)(4) Description of the Device
SmartTouch is used to provide a compliance monitoring for use of a Metered Dose Inhaler (MDI).
SmartTouch is a clip-on device that attaches externally around the enclosure of an MDI. Optical and pressure sensor methods are used to detect MDI presence and actuation, and the device logs the usage history of the MDI. The device includes an LED indicator and control button to check device status and manually initiate communications functions. The SmartTouch has a Bluetooth interface to wirelessly exchange data with a communications device.
# (a){5) Statement of the Intended Use
The SmartTouch is intended for single-patient use as an electronic data capture accessory for recording actuations of prescribed MDI usage. This may be used in the following applications:
- In clinical trials, where researchers need to know when a patient has actuated their trial MDI . medication;
- In clinical practice, where specialists, general practitioners, nurses, and educators need to know if . a patient has actuated their prescribed MDI medication.
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- In self-management, where patients need to track their medication use as part of their management plan.
The SmartTouch is not intended to indicate remaining quantity of medication in an MDI and does not include a dose counting function.
#### (a)(6) Technological Characteristics Summary
Technological characteristics of the SmartTouch are largely equivalent to the predicate device listed above. Equivalent features between the devices include: configuration in attaching to the outside of an MDI enclosure: microprocessor control and use of an internal clock, to log date and time of MDI actuations; power supply from an internal battery; interface to a communications device to upload MDI usage data; and capability to provide compliance data for further analysis using remote review software.
The sensor technology used to detect MDI actuation is different from the predicate device, as is the communications technology. These aspects of the device have been verified by non-clinical testing to establish equivalent performance to the predicate device.
#### (b)(1)_Discussion of the Non-Clinical Tests
Non-clinical testing of the SmartTouch has been carried out to cover functional verification and device performance. This included completion of software and device verification procedures, with performance testing of the MDI presence and actuation sensor system to ensure data is logged accurately for MDI usage. This established correct functionality of the SmartTouch according to requirements.
Review and testing of the SmartTouch for compliance to IEC 60601 series standards for electrical safety, electromagnetic compatibility, and environmental performance; and FCC regulations for radio frequency devices; has been completed by external laboratories.
#### (b)(2) Discussion of the Clinical Tests
Clinical testing was not required to demonstrate the safety and effectiveness of the SmartTouch. The product functionality has been adequately assessed by bench testing as above.
### (b)(3) Conclusions Demonstrating Safety, Effectiveness and Performance
Finished device testing carried out for the SmartTouch indicates it meets design and performance functional requirements. Software verification demonstrates that device features are effective, and functions equivalently to the predicate device meets standard requirements for wireless communications, electrical safety, electromagnetic compatibility, and environmental performance.
This information indicates that the SmartTouch is equivalent to the predicate device in terms of device safety and effectiveness.
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# DEPARTMENT OF HEALTH & HUMAN SERVICES
Image /page/2/Picture/1 description: The image shows the logo for the Department of Health & Human Services - USA. The logo consists of a stylized eagle with three wavy lines extending from its body, all in black. The text "DEPARTMENT OF HEALTH & HUMAN SERVICES - USA" is arranged in a circular fashion around the eagle.
Public Health Service
Food and Drug Administration 10903 New Hampshire Avenue Document Control Center - WO66-G609 Silver Spring, MD 20993-0002
April 25, 2014
Nexus6, Ltd. Mr. Garth Sutherland Chief Executive Officer Suite 205 8 Commerce Street Auckland, 1010 New Zeland
Re: K133951
> Trade/Device Name: SmartTouch Regulation Number: 21 CFR 868.5630 Regulation Name: Nebulizer (Nebulizer) Regulatory Class: Class H Product Code: CAF Dated: April 22, 2014 Received: April 23, 2014
Dear Mr. Sutherland,
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 - Mr. Garth Sutherland
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 devicerelated adverse events) (21 CFR 803); good manufacturing practice requirements as set forth in the quality systems (OS) 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 contact the Division of Small Manufacturers, International and Consumer Assistance at its tollfree number (800) 638-2041 or (301) 796-7100 or at its Internet address
http://www.fda.gov/MedicalDevices/ResourcesforYou/Industry/default.htm. 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
http://www.fda.gov/MedicalDevices/Safety/ReportaProblem/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/Resourcesfor You/Industry/default.htm.
Sincerely yours,
Image /page/3/Picture/7 description: The image shows a logo or emblem with some text. The text reads "Tejashri Purohit-Sheth, M.D. Clinical Deputy Director DAGRID". The logo is a stylized design with some intricate details. The text is positioned to the right of the logo.
Erin I. Keith, M.S. Acting Director Division of Anesthesiology, General Hospital, Respiratory, Infection Control and Dental Devices Office of Device Evaluation Center for Devices and Radiological Health
Enclosure
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Image /page/4/Picture/0 description: The image shows the logo for Nexus6 LTD. The logo consists of a plus sign made up of four squares, with the center square being white and the other four squares being gray. To the right of the plus sign is the text "nexus6 LTD" in a sans-serif font.
Nexus6 Limited Suite 205, 8 Commerce Street, Auckland 1010, New Zealand PO Box 106-612, Auckland 1143, New Zealand Phone +64 9 307 2771
20 December 2013
### INDICATIONS FOR USE
KI33951 510(k) Number:
SmartTouch Device Name:
Indications for Use:
The SmartTouch is intended for single-patient use as an electronic data capture accessory for recording actuations of prescribed MDI usage. This may be used in the following applications:
- In clinical trials, where researchers need to know when a patient has actuated their trial MDI . medication;
- In clinical practice, where specialists, general practitioners, nurses, and educators need to know if . a patient has actuated their prescribed MDI medication.
- In self-management, where patients need to track their medication use as part of their . management plan.
The SmartTouch is not intended to indicate remaining quantity of medication in an MDI and does not include a dose counting function.
Prescription Use _____________________________________________________________________________________________________________________________________________________________ (21 CFR 801 Subpart D) AND/OR
Over-The-Counter Use (21 CFR 801 Subpart C)
Concurrence of CDRH, Office of Device Evaluation (ODE)
Deepika A*Lakh 2014.04.25
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Learn the FDA Browser
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.