510(k) · Cleared
ClearedSleepscan Airflow Pressure Transducer
Data to Oct 25, 2026 (FDA decisions) Oct 12, 2026 (recalls) Sep 30, 2026 (MAUDE) refreshed weekly
Bio-Logic Systems Corp. · MNR Ventilatory Effort Recorder
Cleared on Oct 14, 1997 as substantially equivalent to K913396 (Pro-Tech, Inc., 1992) after a 173-day review. Its family tree reaches back 1 generation to 1992. 1 later device descends from it.
- Decided
- Oct 14, 1997
- Review
- 173 days
- Class
- Class II
- Product code
- MNR
- Recalls
- None
- Predicates
- 1
Its longest line of descent runs back 1 generation to K913396 (1992). 1 later device descends from it, 1 citing it directly.
Most influential descendants
Showing 1 of 1 · See all- K080983Provent Nasal CannulaVentus Medical, Inc. · 2008 · cites it directly0descendants
View FIG. 1 as a table
Line of descent and top descendants
| Generation | Number | Device | Applicant | Decided | Recalls |
|---|---|---|---|---|---|
| −1 | K913396 | Cannula Style Thermocouples | Pro-Tech, Inc. | 1992 | — |
| 0 (this device) | K971501 | Sleepscan Airflow Pressure Transducer | Bio-Logic Systems Corp. | 1997 | — |
| +1 | K080983 | Provent Nasal Cannula | Ventus Medical, Inc. | 2008 | 1 |
Descendants by year cleared
| Year cleared | Devices | With a Class I recall |
|---|---|---|
| 2008 | 1 | 0 |
Sources: FDA 510(k) database (decision fields), the FDA summary (predicates and indications), FDA recall and enforcement reports, and MAUDE; processed by 510(k) Report. Verify on FDA.gov · Methodology and accuracy.
Planning a device in MNR? A 510(k) Report weighs predicate choices, recall history and review times for a new device like this one.
Top candidate predicates for a new MNR device
- #1 K244027 Sansa Hsatscore 18.1 · 12 generations · no Class I recall
- #2 Held for the reportin the report
- #3 Held for the reportin the report
What was it cleared against? (1)
Devices the submitter claimed this one is substantially equivalent to (*), and reference devices cited for a specific test or feature (†), as written in the FDA summary.
| Type | Number | Device | Decided |
|---|---|---|---|
| * | K913396 | Cannula Style ThermocouplesSummary page 1…ration Monitor. CLASSIFICATION NAME: Breathing Frequency Monitor (per CFR 868.1860) PREDICATE DEVICE: Cannula-Style Thermocouple Airflow Sensor, Pro-Tech, Inc.. 510(k) #K913396. DESCRIPTION OF THE DEVICE: The Bio-logic Airflow Pressure Transducer is a small interface device which converts low levels of a… | 1992 |
What descends from it? (1)
1 later device cites it directly; ranked here by how many devices descend from each in turn.
| Number | Device | Decided | Descendants |
|---|---|---|---|
| K080983 | Provent Nasal Cannula | 2008 | 0 |
Has anything in its family been recalled? (0 Class I)
No FDA recall names this device.
No ancestor or descendant has a Class I recall.
What does this lineage say?
How does its category compare?
All MNR devicesMNR Ventilatory Effort Recorder: FDA decisions, review times, recalls and adverse event reports over 20 years.
FDA decisions per year · MNR
10in 2025
2026 to Oct 25, outlined.
Median 510(k) review, days · MNR
165in 2025
Receipt to decision; years with fewer than 3 clearances left blank.
Recalls per year · MNR
1in 2021
Class I (0 since 2007) Class II/III not classified
Adverse event reports per year · MNR
43in 2025
MAUDE reports naming product code MNR, not matched to any one device; reports are not rates.
View these four charts as a table
| Year | Decisions | Median 510(k) review, days | Recalls (Class I) | MAUDE reports |
|---|---|---|---|---|
| 2007 | 6 | 124 | 2 | 1 |
| 2008 | 14 | 118 | 0 | 0 |
| 2009 | 8 | 89 | 1 | 0 |
| 2010 | 0 | — | 0 | 1 |
| 2011 | 9 | 90 | 1 | 1 |
| 2012 | 1 | — | 0 | 1 |
| 2013 | 4 | 161 | 0 | 0 |
| 2014 | 2 | — | 0 | 1 |
| 2015 | 4 | 229 | 0 | 4 |
| 2016 | 3 | 281 | 0 | 10 |
| 2017 | 4 | 275 | 0 | 4 |
| 2018 | 3 | 147 | 0 | 2 |
| 2019 | 8 | 383 | 0 | 3 |
| 2020 | 5 | 192 | 0 | 5 |
| 2021 | 3 | 137 | 1 | 5 |
| 2022 | 7 | 266 | 0 | 4 |
| 2023 | 6 | 183 | 0 | 13 |
| 2024 | 6 | 217 | 0 | 11 |
| 2025 | 10 | 165 | 0 | 43 |
| 2026 | 5 | 227 | 1 | — |
What is it indicated for?
The Bio-logic Airflow Pressure Transducer is indicated for use during sleep disorder studies to detect respiratory airflow
for recording onto a physiological recorder. It is a battery-powered device, with a disposable nasal cannula which
attaches to the patient and plugs into the input of the Airflow Pressure Transducer device. The outputs of the device
provide low-level voltage signals which are intended to be input to a physiological recorder (such as the Bio-logic
Sleepscan product).
It can be used for patients of all ages, from newborn infants through adults, to and including geriatric patients.
Indications for use read by OCR from a scanned FDA summary, so letters may be misread. Check the PDF before quoting it.
https://510kreport.com/device/K971501 · printed Nov 5, 2026
Cite this page
510(k) Report. “K971501: Sleepscan Airflow Pressure Transducer.” Lineage record from FDA 510(k) data and the FDA summary. Updated Nov 3, 2026. Accessed Nov 5, 2026. https://510kreport.com/device/K971501
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Record history
- FDA decision record loaded May 2, 2026
- Summary read Oct 13, 2026 (extraction version 9eaa42aa01ed)
- Lineage and recalls computed Nov 3, 2026
- Page last updated Nov 3, 2026