To promote the movement of oxygen into a patient's tissues by causing him to resvire oxygen at a pressure that is greater than that of the earth's atmosphere (i.e., 1 ATA). Specifically, the BARA-MED® and the predicate devices are indicated for air or gas embolism; carbon monoxide poisoning and carbon monoxide poisoning complicated by cyanide poisoning; clostridial myositis and myonecrosis (gas gangrene); crush injury, compartment syndrome, and other acute traumatic ischemias; decompression sickness; enhancement of healing in selected problem wounds; exceptional blood loss (anemia); intracranial abscess; necrotizing soft tissue infections; refractory osteomyelitis; delayed radiation injury (soft tissue and bony necrosis); compromised skin grafts and flaps; thermal burns.
Device Story
BARA-MED® is an acrylic monoplace hyperbaric chamber; provides hyperbaric oxygen therapy by pressurizing and ventilating the chamber with pure oxygen. Patient breathes chamber atmosphere at pressures >1 ATA. Operator controls pressure-time profiles and oxygen ventilation rates via pneumatic or electronic systems. Used in clinical settings to promote tissue oxygenation for various medical conditions. Output is the controlled hyperbaric environment; allows physician-prescribed treatment delivery. Benefits include enhanced healing and treatment of specific ischemic or toxic conditions.
Clinical Evidence
Bench testing only. Device performance demonstrated through compliance with ASME Boiler and Pressure Vessel Code, ASME PVHO-1, and NFPA 99 standards.
Technological Characteristics
Acrylic monoplace hyperbaric chamber. Materials and construction comply with ASME Boiler and Pressure Vessel Code Section VIII, ASME PVHO-1-1997, and NFPA 99. Operates via pneumatic or electronic pressure/ventilation control systems. Standalone device.
Indications for Use
Indicated for patients requiring hyperbaric oxygen therapy for conditions including air/gas embolism, carbon monoxide poisoning, gas gangrene, crush injury/acute traumatic ischemia, decompression sickness, problem wounds, anemia, intracranial abscess, necrotizing soft tissue infections, refractory osteomyelitis, radiation injury, compromised skin grafts/flaps, and thermal burns.
Regulatory Classification
Identification
A hyperbaric chamber is a device that is intended to increase the environmental oxygen pressure to promote the movement of oxygen from the environment to a patient's tissue by means of pressurization that is greater than atmospheric pressure. This device does not include topical oxygen chambers for extremities (§ 878.5650).
{0}------------------------------------------------
K993010
# 510(k) SUMMARY
# Environmental Tectonics Corporation's BARA-MED® Acrylic Monoplace Hyperbaric Chamber
### SUBMITTER'S NAME AND ADDRESS
Environmental Tectonics Corporation ("ETC") Hyperbaric Division 125 James Way Southampton, PA 18966
# CONTACT PERSON AND TELEPHONE/FACSIMILE NUMBERS
Micheal W. Allen Director, Hyperbaric Division Environmental Tectonics Corporation 125 James Way Southampton, PA 18966
Phone: (215) 355-9100. Ext. 373 Facsimile: (215) 357-4000
## DATE PREPARED: September 3, 1999
## NAME OF DEVICE
Trade of Proprietary Name: BARA-MED® Clinical Acrylic Monoplace Hyperbarid Chamber
Common Name: Hyperbaric Chamber
Classification Name: Hyperbaric chamber, 21 C.F.R. § 868.5470
#### PREDICATE DEVICES
- Dixie Manufacturing Co.'s Dixie 800-45 (pre-amendment device) �
- Perry Baromedical's Sigma I (pre-amendment device) �
- Sechrist Industry's Sechrist 2500 (pre-amendment device) �
- Sechrist Industry's Sechrist 2500E (K934164) �
- Sechrist Industry's Sechrist 3200 (K950386) �
{1}------------------------------------------------
# DEVICE DESCRIPTION/SUBSTANTIAL EQUIVALENCE
The BARA-MED® and its predicate devices have the same intended use: to promote the movement of oxygen into a patient's tissues by causing him to resvire oxygen at a pressure that is greater than that of the earth's atmosphere (i.e., 1 ATA). Specifically, the BARA-MED® and the predicate devices are indicated for air or gas embolism; carbon monoxide poisoning and carbon monoxide poisoning complicated by cyanide poisoning; clostridial myositis and myonecrosis (gas gangrene); crush injury, compartment syndrome, and other acute traumatic ischemias; decompression sickness; enhancement of healing in selected problem wounds; exceptional blood loss (anemia); intracranial abscess; necrotizing soft tissue infections; refractory osteomyelitis; delayed radiation injury (soft tissue and bony necrosis); compromised skin grafts and flaps; thermal burns. These indications for use are in accordance with the recommendations made by the Undersea and Hyperbaric Medical Society for the medical application of hyperbaric chambers.
The BARA-MED® and its predicate devices have very similar general principles of operation. All of these chambers are pressurized and ventilated continuously with pure oxygen, and the patient breathes the chamber atmosphere. Also, in each of the chambers, the pressure-time profile i.e., the rate and direction of pressure change and the time held at any particular pressure), as well as the oxygen ventilation rate of any treatment, are controlled by the chamber's operator, either directly by means of a pneumatic or electronic system, or indirectly by means of an automatic electronic system. The purposes of such controls are to be able to conduct the particular hyperbaric oxygen treatment prescribed by the physician in a way that is save and comfortable for the patient, and to be able to respond appropriately and effectively to any contingency circumstance.
The ETC BARA-MED® is designed and manufactured in accordance with the applicable sections of:
- ASME Boiler and Presser Vessel Code, Section VII, Rules for ● Construction of Pressure Vessels, Division 1, 1998 Edition.
- . ASME PVHO-1-1997, Safety Standard for Pressure Vessels for Human Occupancy.
- NFPA 99, Standard for Health Care Facilities, Chapter 19, 199 . Edition.
In all respects, the BARA-MED® is substantially equivalent to one or more clinical monoplace hyperbaric chambers that are legally marketed for the conduct of hyperbaric oxygen therapy.
{2}------------------------------------------------
# PERFORMANCE DATA
Testing was indicated to demonstrate that the device meets the standards referenced above.
{3}------------------------------------------------
Image /page/3/Picture/1 description: The image shows the logo for the U.S. Department of Health & Human Services. The logo consists of a circular seal with the text "DEPARTMENT OF HEALTH & HUMAN SERVICES - USA" around the perimeter. Inside the circle is an abstract symbol resembling an eagle or bird with three stylized wing-like shapes.
Public Health Service
Food and Drug Administration 9200 Corporate Boulevard Rockville MD 20850
MAY 3 0 2000
Environmental Tectonics Corp. C/O Hogan & Hartson L.L.P. 555 Thirteenth Street, N.W. Washington, DC 20004
Re: K993010 Rasa-Med, Acrylic Monoplace Hyperbaric Chamber Regulatory Class: II (two) 73 CBF Product Code: Dated: February 28, 2000 Received: March 1, 2000
Dear Mr. Holstein:
We have reviewed your Section 510(k) notification of intent to market we nave reviewed your beceien drown have determined the device is the device fereiched above and indications for use stated in the Substantially equivalence (essent to the devices marketed in encrosure) to regarif marito May 28, 1976, the enactment date of the Interstate Commerce prior co the devices that have been reclassified in accordance with the provisions of the Federal Food, Drug, and In accordance with the provident of ce, market the device, subject to the general controls provisions of the Act. The general controls che general conclude requirements for annual registration, pisting of devices, good manufacturing practice, labeling, and prohibitions against misbranding and adulteration.
If your device is classified (see above) into either class II (Special II your device ID Class III (Premarket Approval), it may be subject to such controls) of Craco - Existing major regulations affecting your device aan be found in the Code of Federal Regulations, Title 21, Parts 800 A substantially equivalent determination assumes compliance to 895. ed 653. If babbandad in the Practice requirements, as set with the Ourchio System Regulation (QS) for Medical Devices: General regulation (21 CFR Part 820) and that, through periodic QS ocheral regaracton od Drug Administration (FDA) will verify such assumptions. Failure to comply with the GMP regulation may result in assumptions. Turrare of comp-in, FDA may publish further announcements regaratory acurrently in the Federal Register. Please note: this concerning your dovemarket notification submission does not affect any reopone of your pat have under sections 531 through 542 of the Act obrigation you might have andric Product Radiation Control provisions, or other Federal laws or regulations.
{4}------------------------------------------------
#### Page 2 - Mr. Howard Holstein
This letter will allow you to begin marketing your device as described in your 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 and additionally 809.10 for in vitro diagnostic devices), please contact the Office of Compliance at (301) 594-4648. Additionally, for questions on the promotion and advertising of your device, please contact the Office of Compliance at (301) 594-4639. Also, please note the regulation entitled, "Misbranding by reference to premarket notification" (21 CFR 807.97). Other general information on your responsibilities under the Act may be obtained from the Division of Small Manufacturers Assistance at its toll-free number (800) 638-2041 or (301) 443-6597, or at its internet address "http://www.fda.gov/cdrh/dsma/dsmamain.html".
Sincerely yours,
Mark N Millenson
James E. Dillard III Director Division of Cardiovascular and Respiratory Devices Office of Device Evaluation Center for Devices and Radiological Health
Enclosure
{5}------------------------------------------------
Page 1 of 1
510(k) Number (if known):
Device Name: BARA-MED® ACRYLIC MONOPLACE CHAMBER
Indications For Use:
All of the contemporary substantially equivalent systems listed in Attachment 12 are used for the same indications as listed in the Hyperbaric Oxygen Therapy: Committee Report, Undersea and Hyperbaric Medical Society, Inc., Revised 1999.
- Air or Gas Embolism .
- Carbon Monoxide Poisoning and Carbon Monoxide Poisoning complicated by Cyanide . Poisoning
- Clostridial Myositis and Myonecrosis (Gas Gangrene) ●
- Crush Injury, Compartment Syndrome and other Acute Traumatic Ischemias .
- Decompression Sickness .
- Enhancement of Healing in Selected Problem Wounds ●
- Exceptional Blood Loss (Anemia) .
- . Intracranial Abscess
- Necrotizing Soft Tissue Infections .
- Osteomyelitis (Refractory) .
- Delayed Radiation Injury (Soft Tissue and Bony Necrosis) .
- Skin Grafts and Flaps (Compromised) ●
- Thermal Burns .
# (PLEASE DO NOT WRITEW BELOW THIS LINE -- CONTINUE ON ANOTHER PAGE IF NEEDED)
Concurrence of CDRH, Office of Device Evaluation (ODE)
Mark A. Mcllven K993610
Division Sign Off
Division of Cardiovascular, Respiratory, and Neurological Devices 93010 519(k) Number _
(Optional Format 3-10-98)
Predicate graph will load when search results are available.
Embedding visualization will load when search results are available.
PDF viewer will load when search results are available.
Loading panels...
Select an item from Submissions
Click any panel, subpart, regulation, product code, or device to see details here.
Section Matches
Results will appear here.
Product Code Matches
Results will appear here.
Special Control Matches
Results will appear here.
Loading collections...
Loading
My Alerts
You will receive email notifications based on the filters and frequency you set for each alert.
Sort by:
Create Alert
Search Filters
Agent Token
Create a read-only bearer token for Claude, ChatGPT, or other agents that can call HTTP APIs.
Copy this now. It will not be shown again.
Connected apps
Apps you authorized through browser sign-in. Disconnecting revokes their access immediately.
Learn the FDA Browser
Two short videos show you everything — or skip straight to the written tutorial if you'd rather read. You can reopen this any time from the Tutorial button in the top bar.
Part 1 — Search, results, and everyday workflows 16 min
Part 2 — Embeddings: the galaxy map 3 min
1. Search: exact and fuzzy
Type a phrase like "coronary artery calcification" into the search box. You get two kinds of results. Exact results match the literal phrase — prefix searches work ("coronary artery calcificati") but suffix searches do not. Fuzzy results match on the meaning and intent of your phrase rather than the exact words, and are sorted by relevance score. Hover over the Exact or Fuzzy badge on any row to see exactly why it matched.
Use the checkboxes above the results to narrow: SaMD keeps only software-only devices, AI / ML keeps only devices with AI.
Exact vs. fuzzy search: what's the difference?
Exact matches on the literal phrase (prefix search works, suffix does not). Fuzzy matches on the meaning and intent of the phrase rather than the exact words. Hover over the badge on any row to see why it matched.
You search "coronary artery calcification" and want only software devices with AI. What two filters do you apply?
Narrow by SaMD (software-only devices), then narrow by AI/ML (devices with AI).
2. The results table
Scroll right in the results table. The intended use is extracted for you — no need to open the PDF. The device story gives a high-level snapshot of what the device does and how it's used. The AI Performance sub-table shows each output name, acceptance criteria, observed values, and development/test dataset descriptions — the same format Innolitics uses for regulatory strategy outputs, and the fastest high-level fingerprint of an AI device. It is AI-generated but has been very reliable in practice.
Where do you find a device's intended use without opening the PDF?
Scroll right in the search results table. The intended use column is extracted for you; no need to dig into the 510(k) summary PDF.
What does the AI Performance sub-table show, and why is it useful?
Output name, acceptance criteria, observed values, development dataset description, and test dataset description. It's the same format we use for regulatory strategy output and Fast 510(k) input, and the fastest high-level fingerprint of an AI device. AI-generated but reliable in practice.
3. Judging fuzzy relevance
Fuzzy results trail off in relevance as you scroll. Use three signals to decide how far down to go: the fuzzy badge explanations, the intended use column, and whether your target output (e.g., Cobb angle) still appears in the AI Performance sub-table. Once it stops appearing, you're past the relevant zone. A top hit with a low score (~0.4) and a stretched explanation is a hint the closest predicates are far away — the project may be headed for De Novo. Note the fuzzy search is a pattern match: it doesn't handle negation ("not") well, and hardware devices can appear — filter by SaMD/AI ML to cut them.
How do you judge how far down fuzzy search results to go?
Use the relevancy signals: the fuzzy badge explanations, the intended use column, and whether the target output (e.g., Cobb angle) still appears in the AI Performance sub-table. Once it stops appearing, results are trailing off in relevancy.
4. Device detail page: chat and citations
Click a device name to open its detail page: device facts on the left, a chat window on the right. Ask something like "Describe the training data". The answer carries little citation bubbles — click one to jump to the highlighted passage in the source PDF, so you can verify every AI answer against the document. There's also a Download PDF button for sharing.
How do you verify an AI chat answer on the device detail page?
Click the citation bubbles to jump to the relevant highlight in the source document.
Reading rule for every project: how many summaries do you read in full?
At least the three most relevant 510(k) or De Novo summaries, in full. After that, use targeted chat questions to confirm your memory quickly. The tool supports this professional habit — it doesn't replace it.
5. Side-by-side comparison
Select multiple rows in the results table (aim for under ~10), then open the PDF Viewer tab. Ask one question — it goes to all selected devices in parallel, each with citations. This is the fastest way to compare and contrast devices: training data, PCCP scope, how they handled adding new scanners, and so on.
What does the side-by-side PDF viewer mode do?
Select multiple devices, open the PDF viewer tab, and ask one question (e.g., "Describe the training data"). It queries all selected devices simultaneously with citations, so you can compare and contrast quickly.
6. Collections
With rows selected, go to the Collections tab and create a labeled collection (e.g., "Cobb Angle Project"). Reload that selection any time — before a client call, pull up the collection and ask questions across all of its devices at once.
How do you save a set of selected devices for later use?
Select the rows, go to the Collections tab, and create a labeled collection (e.g., "Cobb Angle Project"). You can reload the selection anytime and carry it into the PDF viewer and other tabs that support selections.
7. Product codes and the regulations tree
Click a product code in the results to jump to it in the regulations tree — identification text, sibling product codes, and devices you can open in a PDF viewer on the right. Click a regulation number to see its identification, special controls, and related product codes. You can also search by product code or regulation number at the top of the tree. Always read the special controls if any exist for your device — it broadens your search and sharpens pre-kickoff research.
What can you do from the regulations tree view?
Browse product codes and regulation numbers, read the identification text and special controls, browse sibling product codes, open device PDFs on the right, and search by product code or regulation number at the top of the tree.
8. Chart view
Click Show Chart and segment by regulation number (or product code) to see which regulations dominate your result set. Clicking a regulation takes you into the regulations tree. Great for spotting that most matches are, say, hardware laparoscopic devices — a cue to go back and filter.
How do you see which regulations dominate a search result set?
Click "Show Chart" and segment by Regulation Number. Clicking a regulation takes you to the regulations tree.
9. The predicate graph
Open the Predicates tab for a family-tree view of predicate relationships. Click a node to trace its parents and children; selections from search carry over pre-selected. Commonly predicated devices are worth reading — a lot of people predicated them for a reason. The visual lineage is also handy on client calls, e.g. to show how a predicate family evolved and justify why your predicate still holds.
In the predicate graph, why are commonly predicated devices worth reading?
A lot of people predicated them for a reason. Clicking a node traces parents and children, and selections from search carry over pre-selected.
10. Embeddings: the galaxy map
The Embeddings tab plots every matching document in a 2-D "galaxy map" where semantically similar devices cluster together. Hover or click clusters to explore, and let AI label the clusters for you. Embeddings beat product codes for grouping: two devices can carry different product codes (LLZ vs. QIH) yet do the same thing — the embedding captures the meaning of the intended use and device story. This is also exactly how retrieval-augmented generation (RAG) works under the hood, and it makes a great visual on client calls.
Try it yourself
Head to the search page and work through a few of these AI/ML fuzzy searches to build intuition: perivascular fat on CT · aortic valve calcification opportunistic screening on noncontrast CT · breast cancer prediction on digital pathology slides · autism detection · gestational age prediction · a hearing aid that can also detect a pulse · foundation model based analysis of ECG · large language models · penetration test. Watch how the relevance scores, intended use, and AI Performance tables tell you when results stop being meaningful.