510(k) · Cleared
ClearedExSpiron 1Xi
Data to Oct 25, 2026 (FDA decisions) Oct 12, 2026 (recalls) Sep 30, 2026 (MAUDE) refreshed weekly
Respiratory Motion, Inc. · BZK Spirometer, Monitoring (W/Wo Alarm)
Cleared on May 9, 2017 as substantially equivalent to K130170 (Respiratory Motion, Inc., 2013) after a 281-day review. Its family tree reaches back 24 generations to 1994. 3 later devices descend from it.
- Decided
- May 9, 2017
- Review
- 281 days
- Class
- Class II
- Product code
- BZK
- Recalls
- None
- Predicates
- 1
Its longest line of descent runs back 24 generations to K941811 (1994). 150 ancestors in all, the oldest K844187 (1985). 3 later devices descend from it, 1 citing it directly.
- Root · 24 generations backK941811 HP M1175A, M1176A, Component Monitoring SystemHewlett-Packard Co. · 1994
- 20 generations between
- 3 generations backK060541 The Philips MP20,MP30,MP40,MP50,MP60,MP70,MP80 and MP90 Intellivue…Philips Medizin Systeme Boblingen GmbH · 2006 · Recalled
- 2 generations backK120087 ExspironRespiratory Motion, Inc. · 2012
- 1 generation backK130170 Exspiron 1XIRespiratory Motion, Inc. · 2013
- This deviceK162131 ExSpiron 1XiRespiratory Motion, Inc. · 2017
- Descendant · cites it directly · 2 of its ownK173181 ExSpiron 1XiRespiratory Motion, Inc. · 2018
- Descendant · 2 generations on · 0 of its ownK260226 ElintMAX Respiratory Monitor (ElintMAX Monitor A1)Amptron Medical, Inc. · 2026
- Descendant · 2 generations on · 0 of its ownK192595 ExSpiron 2XiRespiratory Motion · 2019
Show all 24 generations
- Root · 24 generations backK941811 HP M1175A, M1176A, Component Monitoring SystemHewlett-Packard Co. · 1994
- 23 generations backK960934 HP M1205A Omnicare Component Monitor System Model 24Hewlett-Packard Co. · 1996
- 22 generations backK981376 Hewlett-Packard M1205A Viridia 24 CTHewlett-Packard Co. · 1999
- 21 generations backK990125 HP Viridia Component Monitoring System, Model Rev. KHewlett-Packard GmbH · 1999
- 20 generations backK990972 HP Viridia Component Monitoring System, HP Viridia CMS 24/26, HP…Hewlett-Packard GmbH · 1999
- 19 generations backK013199 Philips Component Compact Monitor,Model M1275B, Philips Compenent…Philips Medical Systems, Inc. · 2001
- 18 generations backK020531 Philips Multi-Parameter Module, Model M3001A; Philips Component…Philips Medical Systems · 2002
- 17 generations backK021778 Philips Component Compact Monitor, Release a.04, Model #M1275BPhilips Medical Systems · 2002
- 16 generations backK023871 M3046A (M2/M3/M4) Compact Portable Patient Monitor and MP60 & MP70…Philips Medical Systems · 2002
- 15 generations backK030038 Philips MP60, MP70 and MP90 Intellivue Patient Monitors with Portal…Philips Medical Systems, Inc. · 2003
- 14 generations backK031481 The Philips Intellivue MP60, MP70, and MP90 Patient Monitors…Philips Medizin Systeme Boblingen GmbH · 2003
- 13 generations backK032858 The Philips Intellivue MP40, MP50, MP60, MP70,and MP90 Patient…Philips Medizin Systeme Boblingen GmbH · 2003
- 12 generations backK040304 Philips Intellivue Patient Monitor, Models MP40 & MP50Philips Medizin Systeme Boeblingen GmbH · 2004
- 11 generations backK041235 Philips MP20, MP30, MP40, MP50. MP60, MP70 and MP90 Intellivue…Philips Medizin Systeme Boeblingen GmbH · 2004
- 10 generations backK042845 The Philips MP20, MP30, MP40, MP50, MP60, MP70, and MP90 Intellivue…Philips Medizin Systeme Boblingen GmbH · 2004
- 9 generations backK050141 The Philips MP20, MP30, MP40, MP50, MP60, MP70 and MP90 Intellivue…Philips Medizin Systeme Boeblingen GmbH · 2005
- 8 generations backK050762 Philips Intellivue Patient Monitor, Models MP20, MP30, MP40, MP50…Philips Medizin Systeme Boeblingen GmbH · 2005
- 7 generations backK051106 The Philips MP20, MP30, MP40, MP50, MP60, MP70, MP80 and MP90…Philips Medizin Systeme Boeblingen GmbH · 2005
- 6 generations backK052801 Intellivue Patient Monitors with Release C.02, Models MP20, MP30…Philips Medizin Systeme Boeblingen GmbH · 2005
- 5 generations backK053522 Philips MP40, MP50, MP60, MP70, MP80 and MP90 Intellivue Patient…Philips Medizin Systeme Boeblingen GmbH · 2006
- 4 generations backK060221 The Phillips, Model MP20,MP30,MP40,MP50,MP60,MP70,MP80,and MP90…Philips Medizin Systeme Boeblingen GmbH · 2006
- 3 generations backK060541 The Philips MP20,MP30,MP40,MP50,MP60,MP70,MP80 and MP90 Intellivue…Philips Medizin Systeme Boblingen GmbH · 2006 · Recalled
- 2 generations backK120087 ExspironRespiratory Motion, Inc. · 2012
- 1 generation backK130170 Exspiron 1XIRespiratory Motion, Inc. · 2013
- This deviceK162131 ExSpiron 1XiRespiratory Motion, Inc. · 2017
Most influential descendants
Showing 3 of 3 · See allView FIG. 1 as a table
Line of descent and top descendants
| Generation | Number | Device | Applicant | Decided | Recalls |
|---|---|---|---|---|---|
| −24 | K941811 | HP M1175A, M1176A, Component Monitoring System | Hewlett-Packard Co. | 1994 | — |
| −23 | K960934 | HP M1205A Omnicare Component Monitor System Model 24 | Hewlett-Packard Co. | 1996 | — |
| −22 | K981376 | Hewlett-Packard M1205A Viridia 24 CT | Hewlett-Packard Co. | 1999 | — |
| −21 | K990125 | HP Viridia Component Monitoring System, Model Rev. K | Hewlett-Packard GmbH | 1999 | — |
| −20 | K990972 | HP Viridia Component Monitoring System, HP Viridia CMS 24/26, HP Viridia… | Hewlett-Packard GmbH | 1999 | — |
| −19 | K013199 | Philips Component Compact Monitor,Model M1275B, Philips Compenent Rack, Model… | Philips Medical Systems, Inc. | 2001 | — |
| −18 | K020531 | Philips Multi-Parameter Module, Model M3001A; Philips Component Compact… | Philips Medical Systems | 2002 | — |
| −17 | K021778 | Philips Component Compact Monitor, Release a.04, Model #M1275B | Philips Medical Systems | 2002 | — |
| −16 | K023871 | M3046A (M2/M3/M4) Compact Portable Patient Monitor and MP60 & MP70 Intellivue… | Philips Medical Systems | 2002 | — |
| −15 | K030038 | Philips MP60, MP70 and MP90 Intellivue Patient Monitors with Portal Technology… | Philips Medical Systems, Inc. | 2003 | — |
| −14 | K031481 | The Philips Intellivue MP60, MP70, and MP90 Patient Monitors, Release a.20 | Philips Medizin Systeme Boblingen GmbH | 2003 | — |
| −13 | K032858 | The Philips Intellivue MP40, MP50, MP60, MP70,and MP90 Patient Monitors… | Philips Medizin Systeme Boblingen GmbH | 2003 | — |
| −12 | K040304 | Philips Intellivue Patient Monitor, Models MP40 & MP50 | Philips Medizin Systeme Boeblingen GmbH | 2004 | — |
| −11 | K041235 | Philips MP20, MP30, MP40, MP50. MP60, MP70 and MP90 Intellivue Patient Monitors | Philips Medizin Systeme Boeblingen GmbH | 2004 | — |
| −10 | K042845 | The Philips MP20, MP30, MP40, MP50, MP60, MP70, and MP90 Intellivue Patient… | Philips Medizin Systeme Boblingen GmbH | 2004 | — |
| −9 | K050141 | The Philips MP20, MP30, MP40, MP50, MP60, MP70 and MP90 Intellivue Patient… | Philips Medizin Systeme Boeblingen GmbH | 2005 | — |
| −8 | K050762 | Philips Intellivue Patient Monitor, Models MP20, MP30, MP40, MP50, MP60, MP70… | Philips Medizin Systeme Boeblingen GmbH | 2005 | — |
| −7 | K051106 | The Philips MP20, MP30, MP40, MP50, MP60, MP70, MP80 and MP90 Intellivue… | Philips Medizin Systeme Boeblingen GmbH | 2005 | — |
| −6 | K052801 | Intellivue Patient Monitors with Release C.02, Models MP20, MP30, MP40, MP50… | Philips Medizin Systeme Boeblingen GmbH | 2005 | — |
| −5 | K053522 | Philips MP40, MP50, MP60, MP70, MP80 and MP90 Intellivue Patient Monitors… | Philips Medizin Systeme Boeblingen GmbH | 2006 | — |
| −4 | K060221 | The Phillips, Model MP20,MP30,MP40,MP50,MP60,MP70,MP80,and MP90 Intellivue… | Philips Medizin Systeme Boeblingen GmbH | 2006 | — |
| −3 | K060541 | The Philips MP20,MP30,MP40,MP50,MP60,MP70,MP80 and MP90 Intellivue Atient… | Philips Medizin Systeme Boblingen GmbH | 2006 | 2 |
| −2 | K120087 | Exspiron | Respiratory Motion, Inc. | 2012 | — |
| −1 | K130170 | Exspiron 1XI | Respiratory Motion, Inc. | 2013 | — |
| 0 (this device) | K162131 | ExSpiron 1Xi | Respiratory Motion, Inc. | 2017 | — |
| +1 | K173181 | ExSpiron 1Xi | Respiratory Motion, Inc. | 2018 | — |
| +2 | K260226 | ElintMAX Respiratory Monitor (ElintMAX Monitor A1) | Amptron Medical, Inc. | 2026 | — |
| +2 | K192595 | ExSpiron 2Xi | Respiratory Motion | 2019 | — |
Other ancestors by year cleared
| Year cleared | Devices | With a Class I recall |
|---|---|---|
| 1985 | 1 | 0 |
| 1987 | 1 | 0 |
| 1989 | 2 | 0 |
| 1990 | 5 | 0 |
| 1991 | 6 | 0 |
| 1992 | 6 | 0 |
| 1993 | 5 | 0 |
| 1994 | 2 | 0 |
| 1995 | 5 | 0 |
| 1996 | 8 | 0 |
| 1997 | 7 | 0 |
| 1998 | 13 | 0 |
| 1999 | 9 | 0 |
| 2000 | 19 | 0 |
| 2001 | 5 | 0 |
| 2002 | 10 | 0 |
| 2003 | 8 | 0 |
| 2004 | 10 | 0 |
| 2005 | 1 | 0 |
| 2006 | 2 | 0 |
| 2009 | 1 | 0 |
Descendants by year cleared
| Year cleared | Devices | With a Class I recall |
|---|---|---|
| 2018 | 1 | 0 |
| 2019 | 1 | 0 |
| 2026 | 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 BZK? 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 BZK device
- #1 K260226 ElintMAX Respiratory Monitor (ElintMAX Monitor…score 19.5 · 26 generations · no Class I recall
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 |
|---|---|---|---|
| * | K130170 | Exspiron 1XISummary page 4…: II Product Code: BZK, BZQ Predicate ExSpiron 1Xi Respiratory Monitor, marketed by Respiratory Motion, Inc, Waltham, MA devices: (K130170). Device The ExSpiron 1Xi is a noninvasive respiratory monitoring system that graphically displays Description:… | 2013 |
What descends from it? (3)
1 later device cites it directly; ranked here by how many devices descend from each in turn.
| Number | Device | Decided | Descendants |
|---|---|---|---|
| K173181 | ExSpiron 1Xi | 2018 | 2 |
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 23 years and passes through 7 companies; a new generation was cleared every 4 months on median.
- 15 of the 150 ancestors have a recall of any class.
- Of its descendants, K173181 (Respiratory Motion, Inc., 2018) has gone furthest, with 2 descendants of its own.
How does its category compare?
All BZK devicesBZK Spirometer, Monitoring (W/Wo Alarm): FDA decisions, review times, recalls and adverse event reports over 20 years. 2017, this device’s year, is highlighted.
FDA decisions per year · BZK
2in 2019
2026 to Oct 25, outlined.
Median 510(k) review, days · BZK
71in 2009
Receipt to decision; years with fewer than 3 clearances left blank.
Recalls per year · BZK
2in 2011
Class I (0 since 2007) Class II/III not classified
Adverse event reports per year · BZK
2in 2020
MAUDE reports naming product code BZK, 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 | 0 | — | 0 | 0 |
| 2008 | 1 | — | 0 | 0 |
| 2009 | 3 | 71 | 0 | 1 |
| 2010 | 0 | — | 0 | 0 |
| 2011 | 1 | — | 2 | 0 |
| 2012 | 1 | — | 0 | 1 |
| 2013 | 1 | — | 0 | 73 |
| 2014 | 0 | — | 0 | 31 |
| 2015 | 0 | — | 0 | 12 |
| 2016 | 0 | — | 0 | 1 |
| 2017 | 1 | — | 0 | 1 |
| 2018 | 2 | — | 0 | 1 |
| 2019 | 2 | — | 0 | 0 |
| 2020 | 0 | — | 0 | 2 |
| 2021 | 0 | — | 0 | 0 |
| 2022 | 0 | — | 0 | 0 |
| 2023 | 0 | — | 0 | 0 |
| 2024 | 0 | — | 0 | 0 |
| 2025 | 0 | — | 0 | 0 |
| 2026 | 1 | — | 0 | — |
What is it indicated for?
ExSpiron 1Xi is indicated for use by healthcare professionals in healthcare facilities, such as post-operative care and
critical care units, to monitor breathing in adult (at least 21 years old) patients.
ExSpiron 1Xi is a non-invasive monitor that graphically displays lung volume against time and reports an approximate
value of:
* Minute Ventilation (MV)
* Tidal volume (TV)
* Respiratory rate (RR)
ExSpiron 1Xi measurements are used as an adjunct to other clinical information.
Indications for use as stated in the FDA summary.
https://510kreport.com/device/K162131 · printed Nov 6, 2026
Cite this page
510(k) Report. “K162131: ExSpiron 1Xi.” Lineage record from FDA 510(k) data and the FDA summary. Updated Nov 3, 2026. Accessed Nov 6, 2026. https://510kreport.com/device/K162131
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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