The Fisio Chamber Spacer is intended to be used by patients who are under the care of treatment of a licensed healthcare professional or physician. The device is intended to be used by these patients to administer aerosolized medication from pressurized Metered-Dose Inhalers, prescribed by a physician or healthcare professional. Environments of use - Home care, nursing homes, sub-acute institutions, and hospitals
Device Story
Fisio Chamber Spacer is a holding chamber for use with pressurized Metered-Dose Inhalers (MDIs). Device consists of a translucent housing, removable end caps, and a one-way valve to prevent exhalation into the chamber; patient interface options include a mouthpiece or face mask. Used in home care, nursing homes, sub-acute institutions, and hospitals by patients under physician care. Device facilitates delivery of aerosolized corticosteroids, anti-cholinergics, B2-sympathomimetics, and non-steroidal chromones to the respiratory system. Patient inhales medication through the chamber; one-way valve ensures unidirectional flow. Benefits include improved aerosol delivery efficiency compared to MDI alone. Device is single-patient, multi-use, and non-sterile.
Clinical Evidence
No clinical data. Evidence consists of bench testing, including comparative particle characterization via cascade impactor, mechanical testing, environmental testing, and simulated life-cycle/cleaning validation. Results demonstrated performance equivalent to the predicate device.
Technological Characteristics
Non-sterile, single-patient, multi-use holding chamber. Components: translucent housing, removable end caps, one-way inhalation valve, mouthpiece or face mask interface. Materials and design equivalent to K010680. No energy source. Manual operation.
Indications for Use
Indicated for any individual under the care of a licensed healthcare professional or physician requiring administration of aerosolized medication from pressurized Metered-Dose Inhalers (MDIs). No contraindications stated.
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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Premarket Notification 510(k) Section 5 - 510(k) Summary
ﺎ
# 510(k) Summary Page 1 of 3 20-Apr-2010
JAN 2 8 2011
| KOO (Shanghai) Industries Co., Ltd. | | | 510(k) K010680<br>Clinical Technologies<br>CT Spacer | K070674<br>Trudell Medical<br>AeroChamber Plus | Proposed<br>Koo Spacer |
|-----------------------------------------|------------------------------------------------------------------|------------------------------------------------------------------------|-----------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------|-----------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------|-------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------|
| 100 Zhongde Road, Dakun Industrial Park | | | For use with MDIs | For use with MDIs | For use with MDIs |
| Songjiang Shanghai 201614 China | | | The CT Spacer is a spacer used with a<br>MDI or a nebulizer to deliver inhalable<br>drug aerosols to a patient. The spacer is<br>to be used by a single patient, for a<br>maximum of 28 days. | The AeroChamber Plus® a VHC with Flow-Vu® IFI<br>is intended to be used by patients who are under the<br>care or treatment of a licensed health care provider<br>or physician. The device is intended to be used by<br>these patients to administer aerosolized medication<br>from most pressurized Metered Dose Inhalers,<br>prescribed by a physician or health care professional.<br>The intended environments for use include the home,<br>hospitals and clinics. | The Fisio Chamber Spacer is intended to be<br>used by patients who are under the care of<br>treatment of a licensed healthcare<br>professional or physician. The device is<br>intended to be used by these patients to<br>administer aerosolized medication from<br>pressurized Metered-Dose Inhalers,<br>prescribed by a physician or healthcare<br>professional |
| Official Contact: | Chris Koo - President | | Not specified | Home, hospitals and clinics. | Home care, nursing homes, sub-acute<br>institutions, and hospitals |
| Proprietary or Trade Name: | Fisio Chamber Spacer | | Yes | Yes | Yes |
| Common/Usual Name: | Spacer / Holding Chamber | | Not specified | All | All |
| Classification Name: | Holding Chambers, Direct Patient Interface<br>NVP - CFR 868.5630 | | Yes | Yes | Yes |
| Predicate Devices: | K010680 – CT Spacer<br>K070674 – Trudell AeroChamber Plus | | Mouthpiece<br>Face Mask | Mouthpiece<br>Face Mask | Mouthpiece<br>Face Mask |
| | T – 011 86 21 57858410 | | Housing | Housing | Housing |
| | F – 011 86 21 57858410 x.107 | | One-way valve to prevent exhalation into<br>chamber | One-way valve to prevent exhalation into chamber | One-way valve to prevent exhalation into<br>chamber |
| | End caps - removable | End caps - removable | End caps - removable | | |
| | | Particle characterization<br>Comparison results found to be equivalent | Particle characterization<br>Mechanical<br>Environmental<br>Simulated life cycle (cleaning)<br>ISO 10993 testing | | |
### Device Description:
The Fisio Chamber Spacer is intended for use in the inhalation of medications delivered via an MDI and for which the medication is to be delivered to the upper and lower respiratory system. The device consists of a translucent housing and mouth piece or face mask and a one-way valve to prevent exhaling into the chamber.
The Fisio Chamber Spacer is intended to be used to inhale aerosolized drugs of approved MDIs from the following groups of active substances:
- · Corticosteroids (anti-inflammatory medications)
- · Anti-cholinergics and B2-sympathomimetics (bronchodilater medications)
- · Non-steroidal chromones (DNCG)
It is a single patient, multi-use non-sterile device.
### Indications for Use:
The Fisio Chamber Spacer is intended to be used by patients who are under the care of treatment of a licensed healthcare professional or physician. The device is intended to be used by these patients to administer aerosolized medication from pressurized Metered-Dose Inhalers, prescribed by a physician or healthcare professional
| Patient Population: | Any individual |
|---------------------|-----------------------------------------------------------------|
| Environment of Use: | Home care, nursing homes, sub-acute institutions, and hospitals |
| Contraindications: | None |
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Premarket Notification 510()
Section 5 – 510(k) Summary
Fisio Spacer
,
# 510(k) Summary
.
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# 510(k) Summary Page 3 of 3 20-Apr-2010
## Substantial Equivalence Discussion
The above table compares the key features of the proposed Fisio Chamber Spacer with the identified predicates and demonstrates that the device can be found to be substantially equivalent.
In summary one can conclude that substantial equivalence is met based upon the following:
### Indications for Use -
The indications for use are nearly identical form the proposed device when compared to the predicates - K010680 - CT Spacer and K070674 - Trudell AeroChamber Plus.
Each device is indicated for use with MDIs of the same category of medications.
### Technology and construction -
The design, fabrication, shape, size, etc. are equivalent to the predicate - K010680 - CT Spacer. This design incorporates a housing, end caps, one way valve for inhalation, patient interface of either a mouthpiece or face mask.
## Environment of Use -
The environments of use are identical to predicate - K070674 - Trudell AcroChamber Plus.
## Patient Population -
The patient population is equivalent to the predicate - K070674 - Trudell AeroChamber Plus.
### Comparative Performance -
We performed comparative particle characterization testing via Cascade Impactor and the results demonstrated equivalent performance to the predicate K070674 - Trudell AeroChamber Plus.
In addition, we performed testing related to simulation life / cleaning validation, environmental and mechanical testing. The results demonstrated that the proposed device either passed or met its performance specifications after each test
All testing demonstrated that the proposed device is substantially equivalent to the predicate devices.
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Image /page/3/Picture/1 description: The image shows the seal of the Department of Health & Human Services (HHS) of the United States. The seal features the department's name encircling a symbol on the right side. The symbol consists of three stylized, curved lines that resemble a human form or a stylized representation of health and well-being.
Food and Drug Administration 10903 New Hampshire Avenue Document Control Room -WO66-G609 Silver Spring, MD 20993-0002
Koo (Shanghai) Industries Company, Limited C/O Mr. Paul Dryden Promedic, Incorporated 24301 Woodsage Drive Bonita Springs, Florida 34134
JAN 2 8 201
Re: K101136
Trade/Device Name: Fisio Chamber Spacer Regulation Number: 21 CFR 868.5630 Regulation Name: Nebulizer Regulatory Class: II Product Code: NVP Dated: January 5, 2011 Received: January 10, 2011
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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Page 2- Mr. Dryden
Enclosure
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 (QS) 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,
Anthony v. m
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
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### Indications for Use Statement
Page 1 of 1
510(k) Number: K101136
Device Name:
Fisio Chamber Spacer
Indications for Use:
The Fisio Chamber Spacer is intended to be used by patients who are under the care of treatment of a licensed healthcare professional or physician. The device is intended to be used by these patients to administer aerosolized medication from pressurized Metered-Dose Inhalers, prescribed by a physician or healthcare professional.
Environments of use - Home care, nursing homes, sub-acute institutions, and hospitals
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)
L. Shulthe
(Division Sign-Off) (Division Sign-Off)
Division of Anesthesiology, General Hospital
Division of Anesthesiology, General Devices Division of Antonio, Dental Devices
510(k) Number: K101136
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.