510(k) · Cleared
ClearedSiemens-Elema AB Servo Ventilator 900 C
Data to Oct 25, 2026 (FDA decisions) Oct 12, 2026 (recalls) Sep 30, 2026 (MAUDE) refreshed weekly
Siemens Elema AB · CBK Ventilator, Continuous, Facility Use
Cleared on May 5, 1981 after a 14-day review. FDA has not posted a summary or statement for it, so its predicates are not known. 12 of the 52 devices in its family, counting itself, have a Class I recall. 51 later devices descend from it.
- Decided
- May 5, 1981
- Review
- 14 days
- Class
- Class II
- Product code
- CBK
- Recalls
- None
- Predicates
- 0
51 later devices descend from it, 2 citing it directly. 12 of the 52 devices in this family, counting this one, have a Class I recall.
- This deviceK811102 Siemens-Elema AB Servo Ventilator 900 CSiemens Elema AB · 1981
- Descendant · cites it directly · 44 of its ownK955324 Bipap S/T-D 30 SystemRespironics, Inc. · 1996
- Descendant · 2 generations on · 42 of its ownK982454 Bipap Vision Ventilatory SupportRespironics, Inc. · 1998 · Recalled
- Descendant · 3 generations on · 14 of its ownK082660 V60 Ventilator, Model V8000Respironics California, Inc. · 2009 · Recalled (Class I)
- Descendant · 3 generations on · 11 of its ownK053168 Bipap FocusRespironics (Ireland) Limited · 2006 · Recalled
- Descendant · 4 generations on · 10 of its ownK071560 Provent Nasal Dilator, Model BR2Ventus Medical, Inc. · 2008
Showing 5 of 51 descendants. See all descendants
Descendants cleared per year
Class I recalls in this family
Most influential descendants
Showing 5 of 51 · See all- K955324Bipap S/T-D 30 SystemRespironics, Inc. · 1996 · cites it directly44descendants
- K982454Bipap Vision Ventilatory SupportRespironics, Inc. · 1998 · 2 generations on42descendants
- K082660V60 Ventilator, Model V8000Respironics California, Inc. · 2009 · 3 generations on14descendants
- K053168Bipap FocusRespironics (Ireland) Limited · 2006 · 3 generations on11descendants
- K071560Provent Nasal Dilator, Model BR2Ventus Medical, Inc. · 2008 · 4 generations on10descendants
View FIG. 1 as a table
Line of descent and top descendants
| Generation | Number | Device | Applicant | Decided | Recalls |
|---|---|---|---|---|---|
| 0 (this device) | K811102 | Siemens-Elema AB Servo Ventilator 900 C | Siemens Elema AB | 1981 | — |
| +1 | K955324 | Bipap S/T-D 30 System | Respironics, Inc. | 1996 | — |
| +2 | K982454 | Bipap Vision Ventilatory Support | Respironics, Inc. | 1998 | 2 |
| +3 | K082660 | V60 Ventilator, Model V8000 | Respironics California, Inc. | 2009 | Class I |
| +3 | K053168 | Bipap Focus | Respironics (Ireland) Limited | 2006 | 1 |
| +4 | K071560 | Provent Nasal Dilator, Model BR2 | Ventus Medical, Inc. | 2008 | — |
Descendants by year cleared
| Year cleared | Devices | With a Class I recall |
|---|---|---|
| 1996 | 1 | 0 |
| 1998 | 2 | 0 |
| 2002 | 1 | 1 |
| 2004 | 4 | 1 |
| 2006 | 1 | 0 |
| 2007 | 1 | 0 |
| 2008 | 2 | 1 |
| 2009 | 3 | 1 |
| 2010 | 2 | 0 |
| 2011 | 2 | 1 |
| 2012 | 6 | 3 |
| 2013 | 1 | 0 |
| 2014 | 2 | 1 |
| 2015 | 1 | 0 |
| 2017 | 1 | 0 |
| 2018 | 1 | 0 |
| 2019 | 1 | 1 |
| 2020 | 3 | 1 |
| 2021 | 1 | 1 |
| 2022 | 2 | 0 |
| 2023 | 3 | 0 |
| 2024 | 4 | 0 |
| 2025 | 3 | 0 |
| 2026 | 3 | 0 |
Sources: FDA 510(k) database (decision fields), FDA recall and enforcement reports, and MAUDE; processed by 510(k) Report. Verify on FDA.gov · Methodology and accuracy.
12 devices in this family have a Class I recall. 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 CBK device
- #1 K252663 Inbentus Versatilescore 16.0 · 17 generations · no Class I recall
- #2 Held for the reportin the report
- #3 Held for the reportin the report
What was it cleared against?
FDA has not posted a summary or statement for it, so its predicates are not known.
What descends from it? (51)
See all 512 later devices cite it directly; ranked here by how many devices descend from each in turn.
Has anything in its family been recalled? (12 Class I)
No FDA recall names this device.
Relatives with a Class I recall
Class I is FDA’s most serious recall class. A recall in the family tree is context for this device, not evidence about it.
- K112114Maquet Flow-I C20, Maquet Flow-I C30, Maquet Flow-I C40Maquet Critical Care AB · 2012 · 3 generations on · ◆ in the 2012 descendants bar of FIG. 11 Class I recall
- K023350Esprit Ventilator with Respiratory MechanicsRespironics California, Inc. · 2002 · 3 generations on · ◆ in the 2002 descendants bar of FIG. 11 Class I recall
- K072885Carina System, Model 8419350; Carina Basic Device, Model 5704110Draeger Medical AG & Co. KG · 2008 · 3 generations on · ◆ in the 2008 descendants bar of FIG. 11 Class I recall
- K082660V60 Ventilator, Model V8000Respironics California, Inc. · 2009 · 3 generations on · ◆ in the 2009 descendants bar of FIG. 13 Class I recalls
- K034040Esprit Ventilator, Model V1000Respironics, Inc. · 2004 · 4 generations on · ◆ in the 2004 descendants bar of FIG. 11 Class I recall
- K113053Bipap a 30 Ventilatory Support SystemRespironics, Inc. · 2012 · 4 generations on · ◆ in the 2012 descendants bar of FIG. 15 Class I recalls
- K102985V60 Ventilator with PPV and Auto-Trak+ Software OptionsRespironics, Inc. · 2011 · 4 generations on · ◆ in the 2011 descendants bar of FIG. 18 Class I recalls
- K133958Flow-I Anesthesia System C20, C30 & C40Maquet Critical Care AB · 2014 · 4 generations on · ◆ in the 2014 descendants bar of FIG. 12 Class I recalls
- K121623Bipap a 40 Ventilatory Support SystemRespironics, Inc. · 2012 · 5 generations on · ◆ in the 2012 descendants bar of FIG. 13 Class I recalls
- K181166Trilogy EvoRespironics, Inc. · 2019 · 6 generations on · ◆ in the 2019 descendants bar of FIG. 131 Class I recalls
- K191027Flow-i Anesthesia System, Flow-c Anesthesia System, Flow-e Anesthesia SystemMaquet Critical Care AB · 2020 · 6 generations on · ◆ in the 2020 descendants bar of FIG. 18 Class I recalls
- K193586Vivo 45 LSBreas Medical AB · 2021 · 7 generations on · ◆ in the 2021 descendants bar of FIG. 11 Class I recall
Nearest 5 of 12; all are on the web page.
What does this lineage say?
- Of its descendants, K955324 (Respironics, Inc., 1996) has gone furthest, with 44 descendants of its own.
How does its category compare?
All CBK devicesCBK Ventilator, Continuous, Facility Use: FDA decisions, review times, recalls and adverse event reports over 20 years.
FDA decisions per year · CBK
4in 2025
2026 to Oct 25, outlined.
Median 510(k) review, days · CBK
163in 2025
Receipt to decision; years with fewer than 3 clearances left blank.
Recalls per year · CBK
14in 2024
Class I (81 since 2007) Class II/III not classified
Adverse event reports per year · CBK
13,991in 2025
MAUDE reports naming product code CBK, 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 | 11 | 142 | 17 | 1,531 |
| 2008 | 18 | 115 | 23 | 1,933 |
| 2009 | 12 | 122 | 8 | 1,766 |
| 2010 | 14 | 150 | 9 | 1,799 |
| 2011 | 13 | 192 | 12 | 1,877 |
| 2012 | 17 | 207 | 2 (1) | 5,509 |
| 2013 | 5 | 277 | 5 (2) | 7,921 |
| 2014 | 5 | 439 | 5 (4) | 7,600 |
| 2015 | 7 | 266 | 6 (4) | 11,876 |
| 2016 | 4 | 323 | 4 (1) | 16,056 |
| 2017 | 6 | 280 | 1 | 14,451 |
| 2018 | 4 | 183 | 3 (3) | 9,849 |
| 2019 | 8 | 435 | 14 (13) | 9,100 |
| 2020 | 5 | 176 | 4 | 11,096 |
| 2021 | 6 | 267 | 21 (19) | 13,322 |
| 2022 | 0 | — | 8 (4) | 15,974 |
| 2023 | 5 | 309 | 4 (3) | 24,928 |
| 2024 | 9 | 203 | 14 (14) | 20,336 |
| 2025 | 4 | 163 | 0 | 13,991 |
| 2026 | 3 | 235 | 15 (13) | — |
https://510kreport.com/device/K811102 · printed Nov 6, 2026
Cite this page
510(k) Report. “K811102: Siemens-Elema AB Servo Ventilator 900 C.” Lineage record from FDA 510(k) data and the FDA summary. Updated Nov 3, 2026. Accessed Nov 6, 2026. https://510kreport.com/device/K811102
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Record history
- FDA decision record loaded May 2, 2026
- Lineage and recalls computed Nov 3, 2026
- Page last updated Nov 3, 2026