The EXHALOMETER™ EX100 is intended to measure the tidal volume, minute volume and respiration rate being delivered to the patient via expiratory ports of resuscitation devices such as transport ventilators and resuscitators. The device is primarily used by Emergency Medical Technicians during emergency transport operations and can also be used for intra-hospital transport. The device is used for indicating how well the resuscitator is functioning. In addition, the device is used for periodically checking the adequacy of the ventilation effort of patients who have initiated spontaneous respiration. The EXHALOMETER can also be used for training and developing resuscitation techniques.
Device Story
Self-contained, battery-powered analyzer; connects to expiratory port of resuscitation devices via filter assembly. Measures exhaled air flow; calculates tidal volume, minute volume, and respiration rate. Used by EMTs in emergency transport and intra-hospital settings. Ruggedized design for shock, vibration, and temperature extremes. Provides real-time data via front-panel LCD; displays readings, graphics, and visual alarms. Assists clinicians in verifying resuscitator performance and patient ventilation adequacy; supports training in resuscitation techniques.
Indicated for patients receiving ventilation via resuscitation devices or transport ventilators; used by EMTs for monitoring tidal volume, minute volume, and respiration rate during emergency or intra-hospital transport; used to assess resuscitator function and spontaneous ventilation effort.
Regulatory Classification
Identification
A monitoring spirometer is a device used to measure continuously a patient's tidal volume (volume of gas inhaled by the patient during each respiration cycle) or minute volume (the tidal volume multiplied by the rate of respiration for 1 minute) for the evaluation of the patient's ventilatory status.
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Image /page/0/Picture/1 description: The image shows the logo for the U.S. Department of Health and Human Services. The logo consists of a stylized eagle with three bars representing its wings. The eagle is enclosed in a circle with the text "DEPARTMENT OF HEALTH AND HUMAN SERVICES - USA" around the perimeter of the circle. The text is in all capital letters.
Food and Drug Administration 9200 Corporate Boulevard Rockville MD 20850
MAR - 8 2006
Caldyne, Incorporated C/O Mr. Tom Shanks MD Ventures 29201 Via Norte Palm Beach Gardens, Florida 33410
Re: K051279
Trade/Device Name: Caldyne, Incorporated Exhalometer EX100, Model EX100 Regulation Number: 21 CFR 868.1850 Regulation Name: Monitoring Spirometer Regulatory Class: II Product Code: BZK, CAH Dated: September 2, 2005 Received: September 6, 2005
Dear Mr. Shanks:
This letter corrects our substantially equivalent letter of September 7, 2005.
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 (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 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. Tom Shanks
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 continue 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 Office of Compliance at (240) 276-0120. Also, please note the regulation entitled, "Misbranding by reference to premarket notification" (21CFR Part 807.97). 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) 443-6597 or at its Internet address http://www.fda.gov/cdrh/dsma/dsmamain.html
Sincerely yours,
Chiu Lin, Ph.D.
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 STATEMENT
510(k) Number (if known):
Device Name:
EXHALOMETER™ EX100
Indications for Use:
The EXHALOMETER™ EX100 is intended to measure the tidal volume, minute volume and respiration rate being delivered to the patient via expiratory ports of resuscitation devices such as transport ventilators and resuscitators. The device is primarily used by Emergency Medical Technicians during emergency transport operations and can also be used for intra-hospital transport. The device is used for indicating how well the resuscitator is functioning. In addition, the device is used for periodically checking the adequacy of the ventilation effort of patients who have initiated spontaneous respiration. The EXHALOMETER can also be used for training and developing resuscitation techniques.
## (PLEASE NO NOT WRITE BELOW THIS LINE -- CONTINUE ON ANOTHER PAGE IF NEEDED)
Concurrence of CRDH, Office of Device Evaluation (ODE)
OR
(Division Sign-Off) Division of Anesthesiology, General Hospital, Infection Control, Dental Devices
Over-the-Counter Use
Prescription Use
(per 21 CFR 801 109)
**X**
510(k) Number.
OR
(Optional Format 1-2-96)
0010
3
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K051279
SE 9/7/05
#### 510(k) SUMMARY 4.0
In accordance with 21 CFR section 807.92, CALDYNE, Inc. is submitting the following 510(k) summary:
#### Submitter Information: 4.1
CALDYNE, Inc. Contact: Mark Grady, President 2425 Maryland Rd. Willow Grove, PA 19090 USA Phone Number: (215) 830-3076
FDA Registration No.: Pending Owner / Operator No .: Pending
#### Preparer of Submission and Contact for Information: 4.2
### MD Ventures
Tom Shanks*, Principal 29201 Via Norte Temecula, CA 92591 Telephone: (951) 506-2674 Fax: (951) 506-3040
*Submission contact for correspondence and additional information.
#### 4.3 Name of Device:
| Proprietary Name: | CALDYNE Inc.'s EXHALOMETER™ EX100. |
|----------------------|-----------------------------------------------|
| Common Name: | Respiratory Monitor or Ventilator Monitor. |
| Classification Name: | Monitoring Spirometer, [21 CFR 868.1850(a)]. |
| Regulation Number: | 21 CFR 868.1850(a) for Monitoring Spirometers |
| Product Code: | BZK |
| Class: | Class II (performance standards) |
0012
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#### 4.4 Substantial Equivalence:
This submission establishes the substantial equivalence of the CALDYNE, Inc. EXHALOMETER™ EX100 to two predicate devices:
- The StarTrack Infant Graphics Monitor, K983274, SE letter: 12/09/98. (1)
- The Newport Compass Exhaled Tidal Volume Monitor, K973314, (2) SE letter: 10/25/93.
#### Description of the Device: 4.5
The EXHALOMETER™ EX100 is a device that is a self contained and internally powered analyzer designed to connect to a specially designed filter assembly, which in turn, connects to the expiratory port of resuscitation devices such as transport ventilators and resuscitators. The device measures exhaled air from the patient and provides data that indicates the tidal volume, minute volume, and respiration rate being delivered to the patient. The patient does not inhale through the device.
This device is primarily used by Emergency Medical Technicians and has been designed to be rugged enough to reliably operate in environments encountered in emergency transport operation, including a wide range of temperatures, shock and vibration and electro-magnetic fields. The device and its parts have been designed with adequate mechanical strength so that when subjected to mechanical stress caused by normal use such as pushing, impact, dropping, and rough handling, the will device function normally and will present no potential safety hazard to the patient.
#### Intended Use of the Device: 4.6
The EXHALOMETER™ EX100 is intended to measure the tidal volume, minute volume, and respiration rate being delivered to the patient. The device is primarily used by Emergency Medical Technicians during emergency transport operations and can also be used for intra-hospital transport. The device is used for accessing how well the resuscitator is functioning. In addition, the device is used for periodically checking the adequacy of the ventilation effort of patients who have initiated spontaneous The EXHALOMETER can also be used for training and developing respiration. resuscitation techniques.
#### Technological Characteristics in Comparison to the Predicates: 4.7
The CALDYNE, Inc. EXHALOMETER EX100 is substantial equivalent to the two predicate devices with respect to the following design characteristics and functions:
- The devices are intended for the measurement and display of the patient's 1. expiratory flow, respiration rate, tidal volume, minute volume, and respiration rate.
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- These devices are used for assessing resuscitator function and adequacy of 2. ventilation efforts.
- 3. The devices are intended for use in intra-hospital environments and patient transport.
- The device housing components are fabricated from the same or similar plastic 4. resin materials used in the predicate devices. The devices use front panel LCD screens to display readings, graphics, and values as well as providing visual alarms and messages.
- ട. The devices use pressure transducers and embedded software (not operator programmable) that contain algorithms for calculating air flow values and rates.
#### 4.8 Conclusions drawn from the Non-Clinical Tests:
Data provided in this submission indicate that the basic functional characteristics of the CALDYNE. Inc. EXHALOMETER EX100 are substantially equivalent to those of the predicate devices. Test data also demonstrates that the device is safe and effective and functions according to its indications for use as well as meeting the requirements of the device's design specifications.
- 1. The instrument provides expiratory flow measurements (via bar graph) with accuracy of displayed parameters that are within ± 10% of the actual value.
- 2. The device displays digital exhalation tidal volumes in milliliters accurate within ± 2% of the performance curve.
- 3. The instrument displays digital expiration minute volumes (amount of gas exhaled during previous one-minute period expressed in Liters) ± 10% of the actual value. .
- 4. The device displays total number of respiration per minute during the previous minute
- The Filter Attachment was underwent Viral Filtration Efficiency (VFE) testing ട്. and demonstrated the Filter Attachment, at an increased challenge, to be %VFE = > 99.83% and thus prevent contamination of the device by bacteria and viruses.
- The software (which is embedded within the device and not programmable by റ. the user) has been verified to function correctly as designed and to operate the device according to the device design specifications and requirements.
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.