The Seattle-PAP is intended to provide continuous positive airway pressure (CPAP) to spontaneously breathing neonates and infants, up to weights of 10 kg, requiring respiratory support due to conditions associated with prematurity, such as Respiratory Distress Syndrome, or other conditions where CPAP is required or desired and prescribed by a physician. It is for use only by trained medical personnel in hospital clinical environment, such as the Neonatal Intensive Care Unit (NICU) and Pediatric Intensive Care Unit (PICU).
Device Story
Seattle-PAP is a bubble CPAP system for neonates/infants (up to 10 kg) in NICU/PICU settings. Device consists of a water reservoir with a lid and an adjustable bubble tube. Clinician inserts the expiratory limb of a breathing circuit into the funnel-swivel of the bubble tube. Gas bubbling through the water column creates CPAP pressure and oscillations in the expiratory limb. Pressure is adjusted by changing the tube depth in the water. The system assists spontaneous breathing, reducing work of breathing for patients with respiratory distress. Operated by trained medical personnel; provides non-invasive respiratory support.
Clinical Evidence
Bench testing only. Testing included accuracy and repeatability of Mean Airway Pressure (MAP), adjustability (4.5 to 10 cm H2O), flow rate performance (4-12 Lpm), endurance (180 hours), and environmental/mechanical stress testing (temperature, humidity, vibration, shock). Results demonstrated performance within specifications and equivalence to the predicate.
Technological Characteristics
Bubble CPAP system; water reservoir with adjustable tube depth. Materials are downstream of patient, outside direct/indirect gas pathway. Operates via gas flow through water column to generate pressure oscillations. Pressure range 4.5-10 cm H2O; flow range 4-12 Lpm. Single-use, disposable. No electronic components or software.
Indications for Use
Indicated for spontaneously breathing neonates and infants up to 10 kg requiring respiratory support for conditions like Respiratory Distress Syndrome or other conditions requiring CPAP. Contraindicated for non-spontaneous breathing patients and those with congenital abnormalities where positive pressure is contraindicated (e.g., diaphragmatic hernia, tracheo-oesophageal fistula).
Regulatory Classification
Identification
A noncontinuous ventilator (intermittent positive pressure breathing-IPPB) is a device intended to deliver intermittently an aerosol to a patient's lungs or to assist a patient's breathing.
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#### 510(k) Summary Page I of 5
| Date prepared: | 8-Oct-13 |
|----------------------------------------------------------------------------|-----------------------------------------------------------------|
| Seattle Children's Hospital<br>4800 Sand Point Way NE<br>Seattle, WA 98105 | Tel - 206-884-5138<br>Fax - 206-985-3134 |
| Official Contact: | Erik Lausund<br>VP, Research Ops & Logistics |
| Proprietary or Trade Name: | Seattle-PAP |
| Common/Usual Name: | Bubble CPAP System |
| Classification Name/Code: | BZD - Noncontinuous ventilator (IPPB)<br>CFR 868.5905, Class II |
| Device: | Seattle-PAP |
| Predicate Devices: | K100011 - Fisher & Paykel - Bubble CPAP System |
#### Device Description:
Seattle-PAP is a bubble continuous positive airway pressure (CPAP) device. Seattle-PAP is installed at the end of an expiratory limb, distal to the patient, in a continuous gas flow breathing system. Seattle-PAP is intended to assist spontaneous breathing in neonates and infants, up to weights of 10 kg.
Seattle-PAP is comprised of two key elements; a water container and a tube inserted into the water. The Water Reservoir contains the water and has a Lid permanently attached to help prevent splashing and spillages. The Lid has an integrated Water Level Adjustment Port, so a clinician can adjust the water level in the Reservoir, if necessary, without disconnecting the breathing circuit.
The tube is comprised of a Funnel-Swivel that is permanently attached to Bubble Tube. The Funnel-Swivel helps prevent spillages when filling the Water Reservoir initially and can rotate to help reduce tension that may build up in the expiratory limb of the breathing circuit. The expiratory end of the patient's breathing circuit, distal to the patient, is inserted into the center of the Funnel-Swivel. A Bubble Tube Lock mechanism is used to ensure the depth of the tube in the water does not change unintentionally.
The gas bubbling out of the end of the Tube creates air pressure oscillations in the breathing circuit. These pressure oscillations do not adversely affect the performance of the Seattle-PAP device, i.e. the ability to deliver the desired CPAP pressure accurately.
#### Indications for Use:
The Seattle-PAP is intended to provide continuous positive airway pressure (CPAP) to spontaneously breathing neonates and infants, up to weights of 10 kg, requiring respiratory
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#### 510(k) Summary Page 2 of 5 8-Oct-13
support due to conditions associated with prematurity, such as Respiratory Distress Syndrome, or other conditions where CPAP is required or desired and prescribed by a physician.
It is for use only by trained medical personnel in hospital clinical environment, such as the Neonatal Intensive Care Unit (NICU) and Pediatric Intensive Care Unit (PICU).
#### Patient Population:
Neonates and infants up to weights of 10 kg
#### Environment of Use:
Hospital clinical environment, such as the Neonatal Intensive Care Unit (NICU) and Pediatric Intensive Care Unit (PICU).
#### Contraindications
- . Non-spontaneous breathing patient
- Congenital abnormalities or malfunctions where positive pressure therapies are . contraindicaated (e.g., diaphragmatic hernia and tracheo-oesophageal fistula)
#### Predicate Device Comparison:
# Table 1 - Comparison to Predicates with Similar Technology and Indications for Use
| | Proposed device | Predicate |
|------------------------|-------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------|--------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------|
| 510(k) | | K100011 |
| Manufacturer | | Fisher & Paykel |
| Device Name | Seattle-PAP | Bubble CPAP |
| Product Code | BZD | BZD |
| CFR | 868.5905 | 868.5905 |
| Indications for<br>Use | The Seattle-PAP is intended to<br>provide continuous positive airway<br>pressure (CPAP) to spontaneously<br>breathing neonates and infants, up to<br>weights of 10 kg, requiring respiratory<br>support due to conditions associated<br>with prematurity, such as Respiratory<br>Distress Syndrome, or other<br>conditions where CPAP is required or<br>desired and prescribed by a physician.<br>It is for use only by trained medical<br>personnel in hospital clinical<br>environment, such as the Neonatal<br>Intensive Care Unit (NICU) and<br>Pediatric Intensive Care Unit (PICU). | Intended to provide continuous positive<br>airway pressure (CPAP) to spontaneously<br>breathing neonates and infants, up to<br>weights of 10 kg, requiring respiratory<br>support due to conditions associated with<br>prematurity, such as Respiratory Distress<br>Syndrome, or other conditions where<br>CPAP is required or desired and<br>prescribed by a physician. |
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# 510(k) Summary Page 3 of 5 8-Oct-13
| | Proposed device<br>Seattle-PAP | Predicate<br>K100011<br>Fisher & Paykel - Bubble CPAP |
|-------------------------------------------------------------|-----------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------|-----------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------|
| Environment of<br>Use | Hospital clinical environment, NICU and<br>PICU | Hospital clinical environment, NICU and<br>PICU |
| Patient<br>population | Neonates and infants, up to weights of<br>10 kg | Neonates and infants, up to weights of 10<br>kg |
| Prescriptive | Yes, for use by trained medical<br>personnel | Yes, for use by trained medical personnel |
| Principle of<br>Operation | Expiratory limb of a breathing circuit<br>connected to a column that is submerged<br>in water. The water column acts to<br>provide pressure when exhaling, CPAP.<br>The column is adjustable. | Expiratory limb of a breathing circuit<br>connected to a column that is submerged<br>in water. The water column acts to<br>provide pressure when exhaling, CPAP.<br>The column is adjustable. |
| Pressure<br>Oscillations | Pressure oscillations are created as gas<br>exits the Bubble Tube. | Pressure oscillations are created as gas<br>exits the Bubble Tube. |
| Placed in<br>expiratory limb<br>of breathing<br>circuit | Yes | Yes |
| Single use,<br>disposable | Yes | Yes |
| Pressure range | 4.5 to 10 cm H₂O | 3 to 10 cm H₂O |
| Accuracy<br>As measured<br>during<br>comparative<br>testing | Specified as +/- 1 cm H₂O<br>Tested accuracy = - 0.21 to +0.17 H₂O | Not specified in available documentation.<br>Tested accuracy -0.09 to +0.52 H₂O |
| Gas flow range | 4 to 12 Lpm | 4 to 15 Lpm |
| Material<br>biocompatibility | All materials are out of direct or indirect<br>gas pathway | All materials are out of direct or indirect<br>gas pathway |
| Non-clinical<br>Performance<br>Testing | Environmental conditions, storage,<br>operational, aging and endurance testing<br>Mechanical Drop test<br>Accuracy<br>Reproducibility of MAP<br>Repeatability of performance | Accuracy<br>Reproducibility of MAP |
| Standards | None under section 514 | None under section 514 |
Based upon the above comparative table it is our view that there are no significant differences that affect the safety or effectiveness of the intended device as compared to the predicate device.
The data presented in the comparative table above indicate no significant differences between the intended device and the predicate device that affect the safety or effectiveness of the respective devices.
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# 510(k) Summary Page 4 of 5
8-Oct-13
The Seattle Children's Hospital Seattle-PAP is viewed as substantially equivalent to the predicate devices because:
#### Indications -
- . The intended use to provide continuous positive airway pressure (CPAP) to spontaneously breathing neonates and infants, up to weights of 10 kg, requiring respiratory support due to conditions associated with prematurity, such as Respiratory Distress Syndrome, or other conditions where CPAP is required or desired and prescribed by a physician is identical to the predicate.
- . Discussion - The indications for use are identical to the predicate Fisher & Paykel -Bubble CPAP (K 100011)
## Technology and Mode of Operation -
- The concept of a tube / column submerged in water to create CPAP is identical to the � predicate Fisher & Paykel - Bubble CPAP (K 100011)
- . The ability to adjust the pressure by changing the column depth in water is identical to the predicate.
- . Creates pressure oscillations in the expiratory limb of the breathing circuit from the gas bubbling out the end of the tube under water.
- . The performance specifications are almost identical to the predicate.
- . Discussion - The technology and mode operation are identical to the predicate Fisher & Paykel - Bubble CPAP (K100011)
#### Environment of Use -
- Identical to predicate Fisher & Paykel Bubble CPAP (K100011) .
- . Discussion - The environments of use are identical to the predicate's.
#### Differences -
No differences between the proposed device would raise any new safety or risk concerns, thus the two devices can be found to be substantially equivalent.
#### Non-clinical Testing Summary -
We have performed a number of tests appropriate for the proposed device. These tests include:
- Repeatability and Accuracy of Mean Airway Pressure (MAP)
- Reproducibility of Mean Airway Pressure (MAP) .
- Accuracy to control MAP .
- Comparison of MAP control Seattle-PAP vs. Predicate Fisher & Paykel (K100011) .
- . Adjustability of device from 4.5 to 10 cm H3O
- . Measured MAP at various flow rates 4 -12 Lpm
- Endurance testing for 180 hours and performance
- . Storage - high temperature
- . Operational - high temperature
- Storage low temperature .
- Operational low temperature .
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# 510(k) Summary Page 5 of 5
#### 8-Oct-13
- High Humidity operational / storage .
- . Age testing
- Vibration sinusoidal .
- . Vibration - random
- . Shock
- . Discussion - The performance testing, post-conditioning and comparative testing all demonstrated that the Seattle-PAP met its performance specifications and was substantially equivalent to the predicate K 100011.
# Biocompatibility of Materials -
- Materials are typical of the predicate .
- The device is downstream of the patient, on the expiratory limb. The device is o not in the direct or indirect gas pathway.
- Discussion No ISO 10993 testing is required. ●
## Substantial Equivalence Conclusion -
The sponsor has demonstrated through performance testing, design and features, and non-clinical testing that the proposed device and predicate have been found to be substantially equivalent to the predicate.
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Image /page/5/Picture/1 description: The image shows the logo for the Department of Health & Human Services USA. The logo features a stylized eagle with three swooping lines representing its wings. The text "DEPARTMENT OF HEALTH & HUMAN SERVICES USA" is arranged in a circular fashion around the eagle.
Food and Drug Administration 10903 New Hampshire Avenue Document Control Center - WO66-G609 Silver Spring, MD 20993-0002
October 11, 2013
Seattle Children's Hospital C/O Mr. Paul Dryden Regulatory Consultant 1900 Ninth Avenue SEATTLE WA 98101
Re: K131502
Trade/Device Name: Seattle-PAP Regulation Number: 21 CFR 868.5905 Regulation Name: Noncontinuous ventilator (IPPB) Regulatory Class: II Product Code: BZD Dated: September 9, 2013 Received: September 11, 2013
Dear Mr. Dryden:
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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Please be advised that FDA's issuance of a substantial equivalence determination does not mean that FDA has made a determination that vour 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 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" (21CFR Part 807.97). For questions regarding the reporting of adverse events under the MDR regulation (21 CFR Part 803), please go to
http://www.fda.gov/MedicalDevices/Safety/ReportalProblem/default.htm for the CDRH's Office of Surveillance and Biometrics/Division of Postmarket Surveillance.
You may obtain other general information on your responsibilities under the Act from the Division of Small Manufacturers, International and Consumer Assistance at its toll-free number (800) 638-2041 or (301) 796-7100 or at its Internet address
http://www.fda.gov/MedicalDevices/ResourcesforYou/Industrv/default.htm.
Sincerely yours.
Tejashri Purohit-Sheth, M.D.
Clinical Deputy Director
DAGRID
FOR Kwame Ulmer, M.S. Acting Division 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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# Indications for Use Statement
Page I of I
510(k) Number:
(To be assigned)
Seattle-PAP Device Name:
Indications for Use:
The Seattle-PAP is intended to provide continuous positive airway pressure (CPAP) to spontaneously breathing neonates and infants, up to weights of 10 kg, requiring respiratory support due to conditions associated with prematurity, such as Respiratory Distress Syndrome, or other conditions where CPAP is required or desired and prescribed by a physician.
It is for use only by trained medical personnel in hospital clinical environment, such as the Neonatal Intensive Care Unit (NICU) and Pediatric Intensive Care Unit (PICU).
Prescription Use XX (Part 21 CFR 801 Subpart D)
or
Over-the-counter use (21 CFR 807 Subpart C)
(PLEASE DO NOT WRITE BELOW THIS LINE-CONTINUE ON ANOTHER PAGE IF NEEDED)
Concurrence of CDRH. Office of Device Evaluation (ODE)
K131502
Image /page/7/Picture/14 description: The image shows the name "Anya C. Harry -S" in large, bold font. To the right of the name, there is some smaller text that reads "DN: c=US, o=U.S. Government, ou=HHS, ou=FDA, ou=People, cn=Anya C. Harry -S, 0.9.2342,19200300.100.1.1=0011315590". The text appears to be a digital signature or certificate information associated with the name.
Digitally signed by Anya C. Harry -S DN: c=US, o=U.S. Government, ou=HHS, 0.9.2342.19200300.100.1.1=0011315590 Date: 2013.10.11 13:21:16 -04'00
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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
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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.