K100285 · Respironics New Jersey, Inc. · CAF · Jun 29, 2010 · Anesthesiology
Device Facts
Record ID
K100285
Device Name
LITETOUCH MASK
Applicant
Respironics New Jersey, Inc.
Product Code
CAF · Anesthesiology
Decision Date
Jun 29, 2010
Decision
SESE
Submission Type
Traditional
Regulation
21 CFR 868.5630
Device Class
Class 2
Attributes
Therapeutic, Pediatric, 3rd-Party Reviewed
Indications for Use
The LiteTouch medium mask for ages 1-5 is to be used with OptiChamber Advantage Valved Holding Chambers. The mask is intended to be used to help administer aerosolized medication from most pressurized metered dose inhalers used with valved holding chambers as prescribed by a physician or health care professional. The intended environments for use include homes, hospitals, and clinics.
Device Story
LiteTouch mask is a patient-interface accessory for OptiChamber Advantage Valved Holding Chambers; facilitates delivery of aerosolized medication from pMDIs to patients (ages 1-5) unable to use standard mouthpieces or coordinate hand-breath timing. Device consists of a cushion plate and flap valve; attaches to the distal end of the spacer. During use, patient exhales through mask; valve prevents room air entry during inhalation. Valve movement provides visual feedback of mask-to-face seal and patient breathing rate. Used in homes, hospitals, and clinics; operated by caregivers or patients. Benefits include improved medication delivery efficiency through effective seal and simplified inhalation process.
Clinical Evidence
No clinical data. Substantial equivalence supported by bench testing only, including fine particle dose recovery (using Ventolin, Flovent, Atrovent) and leak testing under various tilt angles and applied forces compared to predicate and other market-available masks.
Technological Characteristics
Consists of a flap valve and cushion plate. Operates as a passive interface for valved holding chambers. No energy source. Non-electronic. Dimensions/materials not specified beyond functional components. Standalone accessory for use with OptiChamber systems.
Indications for Use
Indicated for pediatric patients aged 1-5 years requiring administration of aerosolized medication from pressurized metered dose inhalers (pMDIs) via a valved holding chamber, specifically for patients unable to use a spacer mouthpiece or lacking hand-breath coordination.
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.
Predicate Devices
AeroChamber Max Valved Holding Chamber Small and Medium Mask (K032972)
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# JUN 2 9 2010
# Section 5
# 510(K) SUMMARY
Prepared: October 15, 2009
This summary of 510(k) safety and effectiveness information is being submitted in accordance with the requirements of SMDA 1990 and 21 CFR Part 807.92.
The assigned 510(k) number is: K100285
### 1. Submitter's Identification:
Respironics New Jersey, Inc. 5 Wood Hollow Road Parsippany, New Jersey 07054 Phone: 973-581-6008 Fax: 973-599-5650 Contact Name: Lauren Ziegler e-mail: lauren.ziegler@respironics.com
Establishment Registration Number : 2243193
# Official Correspondent:
Lauren Ziegler Director, QA, RA, and Clinical Affairs 5 Wood Hollow Road Parsippany, New Jersey 07054 Phone: 973-581-6008 Fax: 973-599-5650 e-mail: Lauren.ziegler@respironics.com
2. Name of the Device:
> LiteTouch mask Common Name or Classification Name (21 CFR Part 807.87) of Device: Mask, 21 CFR Part 868.5630. Device Classification: CAF
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## Predicate Device Information: 3.
Identification of legally marketed device which we claim substantial equivalence to: AeroChamber Max Valved Holding Chamber Small and Medium Mask K032972 AeroChamber Plus Valved Holding Chamber (K992917) Trudell Medical International. 725 Third Street London, Ontario Canada, N5V 5G4
# Device Description: 4.
The LiteTouch mask is a Class II device. It is a mask for use with Respironics' OptiChamber Valved Holding Chamber (K962822).
The LiteTouch mask is a mask that utilizes the same operating principles as the AeroChamber Max Valved Holding Chamber Small and Medium Mask (K032972). The difference between the LiteTouch mask and the AeroChamber Max Valved Holding Chamber Small and Medium Mask is that, the LiteTouch mask does not come assembled to the chamber and the exhalation valve is located in different positions and is not of the same shape. (See picture below).
Image /page/1/Figure/5 description: The image is a diagram of a face mask with two labeled parts. The first labeled part, "Face Plate Cushion Assembly", is labeled with the number 1. The second labeled part, "Flap Valve", is labeled with the number 2.
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The objective in using a mask is to have patients who are unable to use a spacer mouthpiece or have difficulty with hand-breath coordination get their medication through normal breathing pattern.
To use the LiteTouch mask, the user needs to unpack the mask and attach it to the mouthpiece end of the spacer. The MDI (including the actuator) is inserted into the opening in the MDI adaptor at the distal end of the spacer. The MDI and the spacer combination should be shaken vigorously just prior to inhalation. The patient should exhale normally through the mask. The valve from the mask prevents room air from entering the mask as the patient inhales. The valve's opening and closing movement also indicates that there is an effective mask/face seal; that the patient is breathing and how fast the patient is breathing.
The LiteTouch mask comprises of a Flap Valve and a Cushion plate.
# 5. Intended Use:
The LiteTouch medium mask for ages 1-5 is to be used with OptiChamber Advantage Valved Holding Chambers. The mask is intended to be used to help administer aerosolized medication from most pressurized metered dose inhalers used with valved holding chambers as prescribed by a physician or health care professional. The intended environments for use include homes, hospitals, and clinics.
# 6. Comparison to Predicate Devices:
The subject LiteTouch mask and the predicate device (AeroChamber Max Valved Holding Chamber Small and Medium Mask (K032972) are indicated for the same intended use. The difference between the LiteTouch mask and the AeroChamber Max Valved Holding Chamber Small and Medium Mask is that, the LiteTouch mask does not come assembled to the chamber and the exhalation valve is located in different locations and is not of the same shape.
# 7. Discussion of Non-Clinical Tests Performed for Determination of Substantial Equivalence are as follows:
The LiteTouch medium mask was tested while attached to the OptiChamber Valved Holding Chamber in comparison with the OptiChamber Valved Holding Chamber (K962822) for Fine particle Dose (Reference table 1 below).
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# FINE PARTICLE DOSE COMPARISON (0.4-4.7µg)
| Devices | Drugs | | |
|-------------------------------|----------|---------|----------|
| | Ventolin | Flovent | Atrovent |
| OptiChamber with LiteTouch | 21.1 | 18.5 | 3.7 |
| OptiChamber without LiteTouch | 29.5 | 27.1 | 5.4 |
FINE PARTICLE DOSE PERCENTAGE (Drug mass recovered) OCA with LiteTouch vs OCA without LiteTouch (%)
| Devices | Drugs | | |
|---------------------------------------------------------------------------------|----------|---------|----------|
| (OptiChamber with LiteTouch<br>$\div$<br>Optichamber without LiteTouch)<br>*100 | Ventolin | Flovent | Atrovent |
| 71.5 | 68.3 | 68.5 | |
Table 1
The LiteTouch medium mask was also tested during inhalation in comparison with other facemasks to determine leaks (Reference table 2 below).
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| | | | | | | | | | | | | | DCAICCS | | | | | | | | | | | | |
|--------------------------------------------------------------------------------------------------------------------------------------------------------------------------------|--------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------|---------------------|---------------|----|------------|----------------------------|-----------------|------|-----------------------|--------------|-----------|------------------|---------|------------|-------------------------------------------------------------------------------------------------------------------------------------------------------------|-----------|----------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------|---------|---------|----------|------|--------------------|------------|---------|--------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------|
| rce | | Litetouch (softSeal | | | mask | | | | AeroChamber Plus masl | | | )ptiChamber mask | | (Pediatric | | | eroChamber | Max | mas | | | PocketChamber mask | | | |
| | - డిం | -10° | 00 | 50 | 100<br>1 0 | -50 | -10° | no | ಕೊ | 100 | -ಕಿಂ | -100 | 00<br>C | ട്രം | 100 | -50 | -10°<br>------------------------------------------------------------------------------------------------------------------------------------------------------------------------------ | 00 | నం | 100 | -50 | -10° | 00 | ਦੇ ਹ | 100<br>1 0 |
| 10 | -----------------------------<br>13.8 | 79.6 | 0 77<br>6.1 W | 23 | 81.4 | 75 7<br>i | 79 | 74.2 | 89.5 | 076 | 65.2 | 14.2<br>t | ર 8 | 78.1 | 96.3 | રતું ર | 77 7<br>4.4 | 73.6 | 93.3 | C<br>97. | 98.8 | C<br>97 | 08 | 99.4 | 1 00 |
| ------------------------------------------------------------------------------------------------------------------------------------------------------------------------------ | 612<br>ﻟﻤﺴﺎﻋﺪ ﺍﻟﻤﺴﺘﻮﻯ ﺍﻟﻤﺴﺘﻮﻯ ﺍﻟﻤﺴﺘﻮﻯ ﺍﻟﻤﺴﺘﻮﻯ ﺍﻟﻤﺴﺘﻮﻯ ﺍﻟﻤﺴﺘﻮﻯ ﺍﻟﻤﺴﺘﻮﻯ ﺍﻟﻤﺴﺘﻮﻯ ﺍﻟﻤﺴﺘﻮﻯ ﺍﻟﻤﺴﺘﻮﻯ ﺍﻟﻤﺴﺘﻮﻯ ﺍﻟﻤﺴﺘﻮﻯ ﺍﻟﻤﺴﺘﻮﻯ ﺍﻟﻤﺴﺘﻮﻯ ﺍﻟﻤﺴﺘﻮﻯ ﺍﻟﻤﺴﺘﻮﻯ ﺍﻟﻤﺴﺘﻮﻯ ﺍﻟﻤﺴﺘﻮﻯ ﺍﻟﻤﺴﺘﻮﻯ ﺍﻟﻤﺴﺘﻮﻯ ﺍﻟﻤﺴﺘﻮ | Vou | i | て | <br>r | 73.8<br>TTP://www.firet.re | 76 1<br>/ 0 . 1 | 70.9 | 86.4 | 94.6 | I<br>61.5 | 0<br>i<br>77 | 49.8 | 77 1<br>i | તેર | / 5<br>57 | 73.8 | 68.2 | 84.6 | વેરે તે | 89.4 | 83.8 | /1.6<br>71 | 97 | ووووووووووووووووووووووووووووووووووووووووووووووووووووووووووووووووووووووووووووووووووووووووووووووووووووووووووووووووووووووووووووووووووووووووووووووووووووووووووووووووووووووووووووو |
| | 2.9 | I | | | 46.5 | 67.5 | 76.6 | 60 | 82.4 | में कि<br>91 | રે રે | 66.8 | 48 9 | 678 | う<br>વેત્ત્વના વિદ્યારત તેમ જ દૂધની ડેરી જેવી સવલતો પ્રાપ્ય થયેલી છે. આ ગામનાં લોકોનો મુખ્ય વ્યવસાય ખેતી, ખેતમજૂરી તેમ જ પશુપાલન છે. આ ગામનાં મુખ્યત્વે ખેત | P<br>57 | ಗ<br>74 | ಗ<br>રવ | ಗ<br>74 | 0<br>74 | 75 | y<br>72 | 50 | C<br>02 | ------------------------------------------------------------------------------------------------------------------------------------------------------------------------------<br>00 |
# LEAK TEST RESULTS WITH TILT ANGLES AND APPLIED FORG
Devices
# Table 2
# Force:
.
- , 41b are forces applied to the facemasks while on the face to create a sea
-
- gele (0° is the baseline)
" is the angle of the chine is the baseline creating a gap between the mask and the nose bridge.
" is the angle of the chin tilting 10° upward from . . . . . .
-
- the angle of the chin tilting 5° downward from the baseline creating a gap between the mask and the ch
-
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# 8. Discussion of Clinical Tests Performed:
Not Applicable
# 9. Conclusions:
We have demonstrated that the LiteTouch Mask is as safe and effective as a predicate device, the AeroChamber Max Valved Holding Chamber Small and Medium mask, presently on the market, based on substantially equivalent of effectiveness of the seal to the face, Dead space volume, and resistance to inhalation testing. The performance of the LiteTouch before and after washing is also substantially equivalent. The two devices are also substantially equivalent in terms of their operating principle and indications for use.
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# DEPARTMENT OF HEALTH & HUMAN SERVICES
Image /page/6/Picture/1 description: The image shows the logo for the U.S. Department of Health and Human Services. The logo features a stylized eagle with three lines forming its body and head. The words "DEPARTMENT OF HEALTH & HUMAN SERVICES - USA" are arranged in a circular pattern around the eagle.
Food and Drug Administration 10903 New Hampshire Avenue Document Control Room -WO66-G609 Silver Spring, MD 20993-0002
Respironics New Jersey, Incorporated C/O Mr. Ned Devine Senior Staff Engineer Underwriters Laboratories, Incorporated 333 Pfingsten Road Northbrook, Illinois 60062
JUN 2 9 2010
Re: K100285
Trade/Device Name: LiteTouch Mask Regulation Number: 21 CFR 868.5630 Regulation Name: Nebulizer Regulatory Class: II Product Code: CAF Dated: June 10, 2010 Received: June 14, 2010
Dear Mr. Devine:
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. Devine
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 (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 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/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.
Wh for
Anthony D. 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): K100285
Device Name: LiteTouch mask
Indications for Use:
The LiteTouch medium mask for ages 1-5 is to be used with OptiChamber Advantage Valved Holding Chambers. The mask is intended to be used to help administer aerosolized medication from most pressurized metered dose inhalers used with valved holding chambers as prescribed by a physician or health care professional. The intended environments for use include homes, hospitals, and clinics.
Prescription Use X (Part 21 CFR 801 Subpart D)
AND/OR
Over-The-Counter Use (21 CFR 801 Subpart C)
# (PLEASE DO NOT WRITE BELOW THIS LINE-CONTINUE ON ANOTHER PAGE IF NEEDED)
\$\qquad\$ Concurrence of CDRH, Office of Device Evaluation (ODE)
Division Sign-Off) Jivision of Anesthesiology, General Hospital infection Control, Dental Devices
510(k) Number: K100285 4-2
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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.