K082966 · Covidien, Formerly Nellcor Puritan Bennett, Inc. · CBK · Oct 31, 2008 · Anesthesiology
Device Facts
Record ID
K082966
Device Name
PB 540 VENTILATOR
Applicant
Covidien, Formerly Nellcor Puritan Bennett, Inc.
Product Code
CBK · Anesthesiology
Decision Date
Oct 31, 2008
Decision
SESE
Submission Type
Special
Regulation
21 CFR 868.5895
Device Class
Class 2
Attributes
Therapeutic, Pediatric
Indications for Use
The PB 540 Ventilator is indicated for the continuous or intermittent mechanical ventilatory support of patients weighing at least 5 kg who require mechanical ventilation. The ventilator is a restricted medical device intended for use by qualified, trained personnel under the direction of a physician. Specifically, the ventilator is applicable for adult and pediatric patients who require the following general types of ventilatory support, as prescribed by an attending physician: - Positive Pressure ventilation - Assist/Control, SIMV, or CPAP modes of ventilation - Breath types including Volume, Pressure Control and Pressure Support. The ventilator is suitable for use in institutional, home, and transport settings. It is not intended for use as an emergency transport ventilator.
Device Story
PB 540 Ventilator provides mechanical ventilatory support; inputs include pressure and flow sensor data; system utilizes low-inertia micro-turbine flow generator and proportional electronically driven valve; microprocessor controls actuators via specific algorithms; produces positive pressure ventilation in Assist/Control, SIMV, or CPAP modes; supports volume, pressure control, and pressure support breath types; used in institutional, home, and transport settings by qualified, trained personnel under physician direction; output allows clinicians to manage patient respiratory needs; benefits include continuous or intermittent ventilatory support for patients weighing at least 5 kg.
Clinical Evidence
Bench testing only. Functional testing confirmed performance specifications met. Software tested per 2005 FDA guidance. No clinical data provided.
Technological Characteristics
Gas delivery system with low-inertia micro-turbine (brushless motor) and proportional electronically driven valve. Includes pressure and flow sensors. Microprocessor-controlled. Suitable for institutional, home, and transport use. Software-controlled.
Indications for Use
Indicated for continuous or intermittent mechanical ventilatory support for adult and pediatric patients weighing at least 5 kg. Contraindicated for use with anesthetic gases and as an emergency transport ventilator.
Regulatory Classification
Identification
A continuous ventilator (respirator) is a device intended to mechanically control or assist patient breathing by delivering a predetermined percentage of oxygen in the breathing gas. Adult, pediatric, and neonatal ventilators are included in this generic type of device.
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# KO82966
# 510(k) SUMMARY
### OCT 3 1 2008
## PB 540 Ventilator
#### Submitter Information
Covidien, formerly Nellcor Puritan Bennett Inc. 6135 Gunbarrel Avenue Boulder, CO 80301
| Submitter's Name | Tina O'Brien |
|--------------------------|------------------------------------------------|
| | Regulatory Affairs Associate II |
| Telephone | 303.305.2382 |
| Fax | 303.305.2212 |
| Submission Correspondent | Tina O'Brien |
| | Regulatory Affairs Associate II |
| | Covidien, formerly Nellcor Puritan Bennett Inc |
| | 6135 Gunbarrel Ave |
| | Boulder, CO 80301 |
| Telephone | 303-305-2512 |
| Fax | 303-305-2212 |
#### Device Name
.
| Proprietary Name | PB 540 Ventilator |
|---------------------|-------------------------------------------------------------|
| Common Name | Ventilator, continuous, facility use |
| Classification Name | CBK, Ventilator, continuous, facility use (21 CFR 868.5895) |
#### Device Information
The PB 540 Ventilator is intended to provide continuous or intermittent mechanical ventilatory support as prescribed for patients weighing at least 5kg. The ventilator provides assist/control, SIMV, and CPAP modes of ventilation, and is intended for use in institutional, home, or transport settings. The PB 540 is not intended for use as an emergency transport ventilator.
:
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#### Predicate Device Equivalence
This submission is for a modification to a previously cleared device, the Puritan Bennett Legendair XL2 Ventilator (K070899). The modified device has the following similarities to predicate device:
- I has the same indicated use;
- t uses the same operating principles;
- 1 incorporates the same basic design;
- 1 has the same useful life.
In summary, the PB 540 described in this submission is, in our opinion, substantially equivalent to the predicate device.
The term "Substantial Equivalence" as used in this 510(k) Premarket Notification submission is limited to the definition of Substantial Equivalence found in the Federal Food, Drug, and Cosmetic Act, 21 CFR § 807, Subpart E. A determination of substantial equivalency under this submission is not intended to have any bearing whatsoever on the resolution of patent infringement suits or any other patent matters. No statements related to, or in support of, substantial equivalence in this submission shall be construed as an admission against interest under the US Patent Laws or their application by the courts..
#### Device Description
The PB 540 Ventilator gas delivery system is composed of a flow generator capable of supplying a sufficient range of flows and pressures that is then controlled by a three-way valve enabling piloting of the expiration valve. The flow generator is a low-inertia micro-turbine driven by a brushless electric motor and the valve is a proportional electronically driven valve.
These two actuators are controlled according to specific control algorithms by a microprocessor receiving information from the pressure and flow sensors built into the ventilator.
#### Indication for Use
The PB 540 is indicated for the continuous or intermittent mechanical ventilatory support of patients weighing at least 5 kg who require mechanical ventilation. The ventilator is a restricted medical device intended for use by qualified, trained personnel under the direction of a physician. Specifically, the ventilator is applicable for adult and pediatric patients who require the following general types of ventilatory support, as prescribed by an attending physician:
- . Positive Pressure ventilation
- Assist/Control, SIMV, or CPAP modes of ventilation ◆
- Breath types including Volume, Pressure Control and Pressure Support. .
The ventilator is suitable for use in institutional, home, and transport settings. It is not intended for use as an emergency transport ventilator.
#### Contraindications
This ventilator is not for use with anesthetic gases, and is not intended for use as an emergency transport ventilator.
i
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#### Summary of Performance Testing
- 1. Functional testing confirms that the PB 540 Ventilator is capable of meeting its stated performance specifications. The device passed all tests.
- 2. Testing confirms that the PB 540 Ventilator complies with the applicable portions of the July 1995 "Draft Reviewer Guidance for Ventilators" published by the Division of Cardiovascular, Respiratory, and Neurological Devices. The device passed all applicable tests.
- 3. All software is tested in accordance with the "Guidance for the Content of Premarket Submissions for Software Contained in Medical Devices" dated May 2005. The devices passed all tests.
#### Conclusions
We conclude that the PB 540 Ventilator meets the stated performance specifications and criteria referenced above and that the device and its accessories will operate safely in its intended environment and will be effective in fulfilling the intended use.
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Image /page/3/Picture/1 description: The image shows the logo for the U.S. Department of Health & Human Services. The logo is a circular seal with the words "DEPARTMENT OF HEALTH & HUMAN SERVICES - USA" around the perimeter. Inside the circle is a stylized image of a caduceus, which is a symbol of medicine.
Food and Drug Administration 9200 Corporate Boulevard Rockville MD 20850
# OCT 31 2008
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Ms. Tina O'Brien Regulatory Affairs Associate II Covidien, Formerly Nellcor Puritan Bennett, Incorporated 6135 Gunbarrel Avenue Boulder, Colorado 80301
Re: K082966
Trade/Device Name: PB 540 Ventilator Regulation Number: 21 CFR 868.5895 Regulation Name: Continuous Ventilator Regulatory Class: II Product Code: CBK Dated: October 3, 2008 Received: October 6, 2008
Dear Ms. O'Brien:
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.
If your device is classified (see above) into either class II (Special Controls) or class III (PMA), it may be subject to such 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. Cooper
THE COLLECTION CHICAL CONSULTION CONSULTION CONSULTER CONSULTER CONTRAL CONTRACT
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); 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. This letter will allow you to begin marketing your device as described in your Section 510(k) premarket notification. The FDA finding of substantial equivalence of your device to a legally marketed predicate device results in a classification for your device and thus, permits your device to proceed to the market.
If you desire specific advice for your device on our labeling regulation (21 CFR Part 801), please contact the Center for Devices and Radiological Health's (CDRH's) Office of Compliance at (240) 276-0115. Also, please note the regulation entitled, "Misbranding by reference to premarket notification" (21CFR Part 807.97). For questions regarding postmarket surveillance, please contact CDRH's Office of Surveillance and Biometric's (OSB's) Division of Postmarket Surveillance at 240-276-3474. For questions regarding the reporting of device adverse events (Medical Device Reporting (MDR)), please contact the Division of Surveillance Systems at 240-276-3464. 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 (240) 276-3150 or at its Internet address http://www.fda.gov/cdrh/industry/support/index.html.
Sincerely yours,
Sincerely yours,
Chiu Lin, Ph.D. 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:
. Ship from the same of the start of the same to the comments
Device Name: PB 540 Ventilator
#### Indications for Use:
The PB 540 Ventilator is indicated for the continuous or intermittent mechanical ventilatory support of palients weighing at least 5 kg who require mechanical ventilator is a restricted medical device intended for use by qualified, trained personnel under the direction of a physician. Specifically, the ventilator is applicable for adult and pediatric patients who require the following general types of ventilatory support, as prescribed by an attending physician:
- Positive Pressure ventilation .
- Assist/Control, SIMV, or CPAP modes of ventilation .
- Breath types including Volume, Pressure Control and Pressure Support. .
The ventilator is suitable for use in institutional, home, and transport settings. It is not intended for use as an emergency transport ventilator.
L.M. Hamid.
(Division Sign-Off) Division of Anesthesiology, General Hospital Infection Control, Dental Devices
510(k) Number:
Prescription Use (Part 21 CFR 801 Subpart D) AND/OR
Over-The-Counter Use (21 CFR 801 Subpart C)
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Concurrence of CDRH, Office of Device Evaluation (ODE)
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.