510(k) · Cleared
Recalled · Class II · 2019Nasal Alar SpO2 Sensor
Data to Oct 25, 2026 (FDA decisions) Oct 12, 2026 (recalls) Sep 30, 2026 (MAUDE) refreshed weekly
Xhale, Inc. · DQA Oximeter
Cleared on Jul 27, 2017 as substantially equivalent to K143216 (Xhale, Inc., 2015) after a 73-day review. Its family tree reaches back 19 generations to 1994. 1 later device descends from it. It has been recalled once.
- Decided
- Jul 27, 2017
- Review
- 73 days
- Class
- Class II
- Product code
- DQA
- Recalls
- 1
- Predicates
- 1
Its longest line of descent runs back 19 generations to K941811 (1994). 79 ancestors in all, the oldest K863784 (1986). 1 later device descends from it, 1 citing it directly.
- Root · 19 generations backK941811 HP M1175A, M1176A, Component Monitoring SystemHewlett-Packard Co. · 1994
- 15 generations between
- 3 generations backK121912 E1 Ear SensorsMasimo Corporation · 2012
- 2 generations backK122996 Assurance Alar Sensor Model 10078; AB-N Adapter Cable Model 10085Xhale · 2013
- 1 generation backK143216 Assurance Alar / Nasal SpO2 SensorXhale, Inc. · 2015 · Recalled
- This deviceK171423 Nasal Alar SpO2 SensorXhale, Inc. · 2017
- Descendant · cites it directly · 0 of its ownK253887 Nasal Alar SpO2 Sensor (989803205381); Nasal Alar SpO2 Sensor…Philips Medizin Systeme · 2026
Show all 19 generations
- Root · 19 generations backK941811 HP M1175A, M1176A, Component Monitoring SystemHewlett-Packard Co. · 1994
- 18 generations backK960934 HP M1205A Omnicare Component Monitor System Model 24Hewlett-Packard Co. · 1996
- 17 generations backK981376 Hewlett-Packard M1205A Viridia 24 CTHewlett-Packard Co. · 1999
- 16 generations backK990125 HP Viridia Component Monitoring System, Model Rev. KHewlett-Packard GmbH · 1999
- 15 generations backK990972 HP Viridia Component Monitoring System, HP Viridia CMS 24/26, HP…Hewlett-Packard GmbH · 1999
- 14 generations backK013199 Philips Component Compact Monitor,Model M1275B, Philips Compenent…Philips Medical Systems, Inc. · 2001
- 13 generations backK020531 Philips Multi-Parameter Module, Model M3001A; Philips Component…Philips Medical Systems · 2002
- 12 generations backK021778 Philips Component Compact Monitor, Release a.04, Model #M1275BPhilips Medical Systems · 2002
- 11 generations backK023871 M3046A (M2/M3/M4) Compact Portable Patient Monitor and MP60 & MP70…Philips Medical Systems · 2002
- 10 generations backK030038 Philips MP60, MP70 and MP90 Intellivue Patient Monitors with Portal…Philips Medical Systems, Inc. · 2003
- 9 generations backK031481 The Philips Intellivue MP60, MP70, and MP90 Patient Monitors…Philips Medizin Systeme Boblingen GmbH · 2003
- 8 generations backK032858 The Philips Intellivue MP40, MP50, MP60, MP70,and MP90 Patient…Philips Medizin Systeme Boblingen GmbH · 2003
- 7 generations backK040259 Masimo Set Intellivue Pulse Oximeter ModuleMasimo Corp. · 2004
- 6 generations backK041815 LNCS Oximetry SensorsMasimo Corp. · 2004
- 5 generations backK051212 Modification to LNCS Oximetry SensorsMasimo Corporation · 2005 · Recalled
- 4 generations backK101031 Masimo Disposable Oximetry Ear Sensor, Model E1Masimo Corporation · 2010
- 3 generations backK121912 E1 Ear SensorsMasimo Corporation · 2012
- 2 generations backK122996 Assurance Alar Sensor Model 10078; AB-N Adapter Cable Model 10085Xhale · 2013
- 1 generation backK143216 Assurance Alar / Nasal SpO2 SensorXhale, Inc. · 2015 · Recalled
- This deviceK171423 Nasal Alar SpO2 SensorXhale, Inc. · 2017
Most influential descendants
Showing 1 of 1 · See all- K253887Nasal Alar SpO2 Sensor (989803205381); Nasal Alar SpO2 Sensor (989803205391); Nasal Alar…Philips Medizin Systeme · 2026 · cites it directly0descendants
View FIG. 1 as a table
Line of descent and top descendants
| Generation | Number | Device | Applicant | Decided | Recalls |
|---|---|---|---|---|---|
| −19 | K941811 | HP M1175A, M1176A, Component Monitoring System | Hewlett-Packard Co. | 1994 | — |
| −18 | K960934 | HP M1205A Omnicare Component Monitor System Model 24 | Hewlett-Packard Co. | 1996 | — |
| −17 | K981376 | Hewlett-Packard M1205A Viridia 24 CT | Hewlett-Packard Co. | 1999 | — |
| −16 | K990125 | HP Viridia Component Monitoring System, Model Rev. K | Hewlett-Packard GmbH | 1999 | — |
| −15 | K990972 | HP Viridia Component Monitoring System, HP Viridia CMS 24/26, HP Viridia… | Hewlett-Packard GmbH | 1999 | — |
| −14 | K013199 | Philips Component Compact Monitor,Model M1275B, Philips Compenent Rack, Model… | Philips Medical Systems, Inc. | 2001 | — |
| −13 | K020531 | Philips Multi-Parameter Module, Model M3001A; Philips Component Compact… | Philips Medical Systems | 2002 | — |
| −12 | K021778 | Philips Component Compact Monitor, Release a.04, Model #M1275B | Philips Medical Systems | 2002 | — |
| −11 | K023871 | M3046A (M2/M3/M4) Compact Portable Patient Monitor and MP60 & MP70 Intellivue… | Philips Medical Systems | 2002 | — |
| −10 | K030038 | Philips MP60, MP70 and MP90 Intellivue Patient Monitors with Portal Technology… | Philips Medical Systems, Inc. | 2003 | — |
| −9 | K031481 | The Philips Intellivue MP60, MP70, and MP90 Patient Monitors, Release a.20 | Philips Medizin Systeme Boblingen GmbH | 2003 | — |
| −8 | K032858 | The Philips Intellivue MP40, MP50, MP60, MP70,and MP90 Patient Monitors… | Philips Medizin Systeme Boblingen GmbH | 2003 | — |
| −7 | K040259 | Masimo Set Intellivue Pulse Oximeter Module | Masimo Corp. | 2004 | — |
| −6 | K041815 | LNCS Oximetry Sensors | Masimo Corp. | 2004 | — |
| −5 | K051212 | Modification to LNCS Oximetry Sensors | Masimo Corporation | 2005 | 5 |
| −4 | K101031 | Masimo Disposable Oximetry Ear Sensor, Model E1 | Masimo Corporation | 2010 | — |
| −3 | K121912 | E1 Ear Sensors | Masimo Corporation | 2012 | — |
| −2 | K122996 | Assurance Alar Sensor Model 10078; AB-N Adapter Cable Model 10085 | Xhale | 2013 | — |
| −1 | K143216 | Assurance Alar / Nasal SpO2 Sensor | Xhale, Inc. | 2015 | 1 |
| 0 (this device) | K171423 | Nasal Alar SpO2 Sensor | Xhale, Inc. | 2017 | — |
| +1 | K253887 | Nasal Alar SpO2 Sensor (989803205381); Nasal Alar SpO2 Sensor (989803205391)… | Philips Medizin Systeme | 2026 | — |
Other ancestors by year cleared
| Year cleared | Devices | With a Class I recall |
|---|---|---|
| 1986 | 1 | 0 |
| 1987 | 1 | 0 |
| 1989 | 1 | 0 |
| 1990 | 3 | 0 |
| 1992 | 4 | 0 |
| 1993 | 2 | 0 |
| 1994 | 3 | 0 |
| 1995 | 4 | 0 |
| 1996 | 2 | 0 |
| 1997 | 4 | 0 |
| 1998 | 5 | 0 |
| 1999 | 8 | 0 |
| 2000 | 11 | 0 |
| 2001 | 3 | 0 |
| 2002 | 5 | 0 |
| 2003 | 2 | 0 |
| 2006 | 1 | 0 |
Descendants by year cleared
| Year cleared | Devices | With a Class I recall |
|---|---|---|
| 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 DQA? 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 DQA device
- #1 K221282 Empatica Health Monitoring Platformscore 20.1 · 38 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 |
|---|---|---|---|
| * | K143216 | Assurance Alar / Nasal SpO2 SensorSummary page 4…Product Classification – DQA 21 CFR 870.2700 Class II Predicate Device: K143216 – Xhale Assurance™ Alar / Nasal SpO2 sensor Device Description: Xhale is seeking an expansion of indications to change patient… | 2015 |
| † | K122996 | Assurance Alar Sensor Model 10078; AB-N Adapter Cable Model 10085 | 2013 |
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 |
|---|---|---|---|
| K253887 | Nasal Alar SpO2 Sensor (989803205381); Nasal Alar SpO2 Sensor (989803205391); Nasal Alar… | 2026 | 0 |
Has anything in its family been recalled? (0 Class I)
Recalls of this device
| Date | Class | Recall | Root cause | Reason |
|---|---|---|---|---|
| May 8, 2019 | Class II | Z-2133-2019 | Device Design | These Instructions for Use has missing instructions related to the checking and changing of the application site procedure. |
No ancestor or descendant has a Class I recall.
What does this lineage say?
- The line of descent spans 23 years and passes through 9 companies; a new generation was cleared every 6 months on median.
- 7 of the 79 ancestors have a recall of any class.
- Of its descendants, K253887 (Philips Medizin Systeme, 2026) has gone furthest, with 0 descendants of its own.
How does its category compare?
All DQA devicesDQA Oximeter: FDA decisions, review times, recalls and adverse event reports over 20 years. 2017, this device’s year, is highlighted.
FDA decisions per year · DQA
15in 2025
2026 to Oct 25, outlined.
Median 510(k) review, days · DQA
182in 2025
Receipt to decision; years with fewer than 3 clearances left blank.
Recalls per year · DQA
3in 2024
Class I (0 since 2007) Class II/III not classified
Adverse event reports per year · DQA
399in 2025
MAUDE reports naming product code DQA, 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 | 20 | 122 | 6 | 325 |
| 2008 | 22 | 97 | 5 | 312 |
| 2009 | 35 | 117 | 29 | 281 |
| 2010 | 29 | 127 | 4 | 185 |
| 2011 | 15 | 195 | 1 | 164 |
| 2012 | 14 | 120 | 0 | 322 |
| 2013 | 15 | 182 | 0 | 468 |
| 2014 | 11 | 175 | 2 | 1,124 |
| 2015 | 13 | 158 | 1 | 2,082 |
| 2016 | 14 | 246 | 0 | 1,775 |
| 2017 | 9 | 200 | 0 | 1,190 |
| 2018 | 18 | 260 | 32 | 694 |
| 2019 | 19 | 158 | 0 | 548 |
| 2020 | 15 | 126 | 0 | 426 |
| 2021 | 10 | 174 | 0 | 553 |
| 2022 | 20 | 265 | 0 | 478 |
| 2023 | 13 | 317 | 0 | 392 |
| 2024 | 14 | 285 | 3 | 545 |
| 2025 | 15 | 182 | 0 | 399 |
| 2026 | 8 | 187 | 0 | — |
What is it indicated for?
The Nasal Alar SpO2 Sensor is indicated for single patient use for continuously noninvasive monitoring of functional oxygen saturation of arterial hemoglobin (SpO2) and pulse rate from the nasal ala of adult and pediatric patients (at least 4 years and older and weighing >15 kg), who are well or poorly perfused. The sensor can be used in a variety of healthcare environments where compatible pulse oximetry monitors are indicated for use, under professional supervision.
Indications for use as stated in the FDA summary.
https://510kreport.com/device/K171423 · printed Nov 6, 2026
Cite this page
510(k) Report. “K171423: Nasal Alar SpO2 Sensor.” Lineage record from FDA 510(k) data and the FDA summary. Updated Nov 3, 2026. Accessed Nov 6, 2026. https://510kreport.com/device/K171423
Report an extraction error
Are you the manufacturer?
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