510(k) · Cleared
ClearedCO2 Sampling Line
Data to Oct 25, 2026 (FDA decisions) Oct 12, 2026 (recalls) Sep 30, 2026 (MAUDE) refreshed weekly
Tylenol Medical Instruments Co., Ltd. · CCK Analyzer, Gas, Carbon-Dioxide, Gaseous-Phase
Cleared on Feb 6, 2019 as substantially equivalent to K151421 (Salter Labs, 2016) after a 196-day review. Its family tree reaches back 2 generations to 1986. 1 later device descends from it.
- Decided
- Feb 6, 2019
- Review
- 196 days
- Class
- Class II
- Product code
- CCK
- Recalls
- None
- Predicates
- 1
Its longest line of descent runs back 2 generations to K863703 (1986). 7 ancestors in all. 1 later device descends from it, 1 citing it directly.
- Root · 2 generations backK863703 Salter Labs Model 4000 Nasal CO2 Sample LineSalter Labs · 1986
- 1 generation backK151421 Nasal CO2 Sample Line, Oral Nasal CO2 Sampling Cannula, O2…Salter Labs · 2016
- This deviceK181981 CO2 Sampling LineTylenol Medical Instruments Co., Ltd. · 2019
- Descendant · cites it directly · 0 of its ownK251216 0184 CO2 Sampling line; 0184T CO2 Sampling line; 0139 CO2 Sampling…Barbaras Development, Inc. · 2025
Most influential descendants
Showing 1 of 1 · See all- K2512160184 CO2 Sampling line; 0184T CO2 Sampling line; 0139 CO2 Sampling line; 0182 CO2…Barbaras Development, Inc. · 2025 · cites it directly0descendants
View FIG. 1 as a table
Line of descent and top descendants
| Generation | Number | Device | Applicant | Decided | Recalls |
|---|---|---|---|---|---|
| −2 | K863703 | Salter Labs Model 4000 Nasal CO2 Sample Line | Salter Labs | 1986 | — |
| −1 | K151421 | Nasal CO2 Sample Line, Oral Nasal CO2 Sampling Cannula, O2 Oral/Nasal Co2… | Salter Labs | 2016 | — |
| 0 (this device) | K181981 | CO2 Sampling Line | Tylenol Medical Instruments Co., Ltd. | 2019 | — |
| +1 | K251216 | 0184 CO2 Sampling line; 0184T CO2 Sampling line; 0139 CO2 Sampling line; 0182… | Barbaras Development, Inc. | 2025 | — |
Other ancestors by year cleared
| Year cleared | Devices | With a Class I recall |
|---|---|---|
| 1986 | 1 | 0 |
| 1987 | 2 | 0 |
| 1989 | 2 | 0 |
Descendants by year cleared
| Year cleared | Devices | With a Class I recall |
|---|---|---|
| 2025 | 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 CCK? 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 CCK device
- #1 K253030 Capnostream™35 Portable Respiratory Monitor…score 15.8 · 16 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 |
|---|---|---|---|
| * | K151421 | Nasal CO2 Sample Line, Oral Nasal CO2 Sampling Cannula, O2 Oral/Nasal Co2 Cannula…Summary page 4…ion Name: Carbon dioxide gas analyzer Product Code: CCK Regulatory Class: Class II Predicate Device(s): K151421- Nasal CO2 Sample Line; O2 Delivery/CO2 Sampling Nasal Cannula; Oral/Nasal CO2 Sampling… | 2016 |
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 |
|---|---|---|---|
| K251216 | 0184 CO2 Sampling line; 0184T CO2 Sampling line; 0139 CO2 Sampling line; 0182 CO2… | 2025 | 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?
- The line of descent spans 33 years and passes through 2 companies; a new generation was cleared every 29.4 years on median.
- 2 of the 7 ancestors have a recall of any class.
- Of its descendants, K251216 (Barbaras Development, Inc., 2025) has gone furthest, with 0 descendants of its own.
How does its category compare?
All CCK devicesCCK Analyzer, Gas, Carbon-Dioxide, Gaseous-Phase: FDA decisions, review times, recalls and adverse event reports over 20 years. 2019, this device’s year, is highlighted.
FDA decisions per year · CCK
3in 2025
2026 to Oct 25, outlined.
Median 510(k) review, days · CCK
169in 2025
Receipt to decision; years with fewer than 3 clearances left blank.
Recalls per year · CCK
1in 2022
Class I (8 since 2007) Class II/III not classified
Adverse event reports per year · CCK
1,259in 2025
MAUDE reports naming product code CCK, 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 | 5 | 56 | 0 | 7 |
| 2008 | 3 | 248 | 1 | 20 |
| 2009 | 3 | 101 | 19 | 21 |
| 2010 | 3 | 125 | 4 | 12 |
| 2011 | 2 | — | 14 | 18 |
| 2012 | 7 | 150 | 3 | 13 |
| 2013 | 4 | 132 | 2 (1) | 28 |
| 2014 | 9 | 166 | 0 | 51 |
| 2015 | 5 | 105 | 1 | 114 |
| 2016 | 2 | — | 0 | 88 |
| 2017 | 5 | 134 | 0 | 58 |
| 2018 | 6 | 296 | 5 | 63 |
| 2019 | 7 | 261 | 7 (7) | 141 |
| 2020 | 4 | 188 | 1 | 2,302 |
| 2021 | 4 | 227 | 0 | 2,272 |
| 2022 | 3 | 226 | 1 | 2,475 |
| 2023 | 4 | 555 | 0 | 1,637 |
| 2024 | 3 | 592 | 0 | 1,216 |
| 2025 | 3 | 169 | 0 | 1,259 |
| 2026 | 3 | 224 | 0 | — |
What is it indicated for?
The CO2 Sample Lines are intended to be used where exhaled gas is monitored.
The intended population: Patients requiring expired gas monitoring, adult to pediatrics
The intended environment of use:Hospital-OR, sub-acute, and pre-hospital settings
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/K181981 · printed Nov 6, 2026
Cite this page
510(k) Report. “K181981: CO2 Sampling Line.” Lineage record from FDA 510(k) data and the FDA summary. Updated Nov 3, 2026. Accessed Nov 6, 2026. https://510kreport.com/device/K181981
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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