510(k) Report

510(k) · Cleared

Cleared

Xpress Multi-Sinus Dilation Tool

K121174510(k) SpecialCleared May 17, 201230-day reviewClass I21 CFR 874.4420

Data to Oct 25, 2026 (FDA decisions) Oct 12, 2026 (recalls) Sep 30, 2026 (MAUDE) refreshed weekly, last Nov 3, 2026

Entellus Medical, Inc. · LRC Instrument, Ent Manual Surgical

Cleared on May 17, 2012 as substantially equivalent to K112506 (Entellus Medical, Inc., 2011) after a 30-day review. Its family tree reaches back 15 generations to 1994. 20 later devices descend from it.

Decided
May 17, 2012
Review
30 days
Class
Class I
Product code
LRC
Recalls
None
Predicates
1

Its longest line of descent runs back 15 generations to K936109 (1994). 80 ancestors in all, the oldest K800617 (1980). 20 later devices descend from it, 3 citing it directly.

Other ancestors, by year clearedDescendants, by year cleared 2006: 1 other ancestor2005: 1 other ancestor1998: 7 other ancestors2003: 1 other ancestor2002: 5 other ancestors2000: 12 other ancestors2001: 3 other ancestors1997: 4 other ancestors1996: 8 other ancestors1995: 7 other ancestors1994: 4 other ancestors1992: 3 other ancestors1999: 1 other ancestor1980: 1 other ancestor1993: 1 other ancestor1991: 3 other ancestors1990: 1 other ancestor1989: 1 other ancestor1986: 1 other ancestor2016: 2 descendants cleared2018: 2 descendants cleared2012: 1 descendant cleared2013: 2 descendants cleared2014: 1 descendant cleared2020: 3 descendants cleared2015: 1 descendant cleared2023: 4 descendants cleared2017: 1 descendant cleared2021: 1 descendant cleared2022: 1 descendant cleared2026: 1 descendant clearedK936109 · Sharplan Model 1120 CO2 Surgical Laser · Sharplan Lasers, Inc. · 1994K960521 · Sharplan Lasers, Inc. Silktouch Flash Scanner · Sharplan Lasers, Inc. · 1996K963339 · Coherent Ultrapulse CO2 Surgical Lasers · Coherent Medical Group · 1997K974789 · Coherent Ultrapulse S Series CO2 Surgical Lasers Model C and L · Lumenis, Inc. · 1998K990947 · Modified Versapulse Select Single Wavelength, HO: Yag and Dual Wavelength, HO: Yag/ND: Yag Surgical Lasers and Delivery · Lumenis, Inc. · 1999K011703 · Lumenis Versapulse Powersuite Holmium (HO:Yag) and Dual Wavelength (HO:Yag/ND:Yag) Surgical Lasers and Delivery Devices · Lumenis · 2001 · recalled×2: 2 generations cleared close together, K014290 (2002), K021364 (2002) K030108 · Arthrocare Ent Coblator Surgery System · Arthrocare Corp. · 2003 · recalledK034004 · Diego RF Powered Dissector and Drill System Console · Gyrus Ent LLC · 2004×2: 2 generations cleared close together, K072302 (2008), K081542 (2008) K093007 · Entellus Medical Balloon Device · Entellus Medical, Inc. · 2010K102003 · Xpress Balloon Device · Entellus Medical, Inc. · 2010K112506 · Xpress Multi-Sinus Dilation Tool · Entellus Medical, Inc. · 201119801990200020102020
Other ancestors, by generationDescendants, by generation 4 generations back: 1 other ancestor5 generations back: 2 other ancestors6 generations back: 6 other ancestors7 generations back: 11 other ancestors8 generations back: 16 other ancestors9 generations back: 9 other ancestors10 generations back: 11 other ancestors11 generations back: 5 other ancestors12 generations back: 3 other ancestors13 generations back: 1 other ancestor 1 generation forward: 3 descendants2 generations forward: 3 descendants3 generations forward: 1 descendant4 generations forward: 2 descendants5 generations forward: 3 descendants6 generations forward: 4 descendants7 generations forward: 3 descendants8 generations forward: 1 descendant K112506 · Xpress Multi-Sinus Dilation Tool · Entellus Medical, Inc. · 2011K102003 · Xpress Balloon Device · Entellus Medical, Inc. · 2010K093007 · Entellus Medical Balloon Device · Entellus Medical, Inc. · 2010K081542 · Modification to Entellus Medical RS-Series System · Entellus Medical, Inc. · 2008K072302 · Entellus Medical RS-Series System · Entellus Medical, Inc. · 2008K034004 · Diego RF Powered Dissector and Drill System Console · Gyrus Ent LLC · 2004K030108 · Arthrocare Ent Coblator Surgery System · Arthrocare Corp. · 2003 · recalledK021364 · Modification to Entec Plasma Wands · Arthrocare Corp. · 2002K014290 · Entec Plasma Wands · Arthrocare Corp. · 2002K011703 · Lumenis Versapulse Powersuite Holmium (HO:Yag) and Dual Wavelength (HO:Yag/ND:Yag) Surgical Lasers and Delivery Devices · Lumenis · 2001 · recalledK990947 · Modified Versapulse Select Single Wavelength, HO: Yag and Dual Wavelength, HO: Yag/ND: Yag Surgical Lasers and Delivery · Lumenis, Inc. · 1999K974789 · Coherent Ultrapulse S Series CO2 Surgical Lasers Model C and L · Lumenis, Inc. · 1998K963339 · Coherent Ultrapulse CO2 Surgical Lasers · Coherent Medical Group · 1997K960521 · Sharplan Lasers, Inc. Silktouch Flash Scanner · Sharplan Lasers, Inc. · 1996K936109 · Sharplan Model 1120 CO2 Surgical Laser · Sharplan Lasers, Inc. · 1994−15−10−50+5
  1. Root · 15 generations backK936109 Sharplan Model 1120 CO2 Surgical LaserSharplan Lasers, Inc. · 1994
  2. 11 generations between
  3. 3 generations backK093007 Entellus Medical Balloon DeviceEntellus Medical, Inc. · 2010
  4. 2 generations backK102003 Xpress Balloon DeviceEntellus Medical, Inc. · 2010
  5. 1 generation backK112506 Xpress Multi-Sinus Dilation ToolEntellus Medical, Inc. · 2011
  6. This deviceK121174 Xpress Multi-Sinus Dilation ToolEntellus Medical, Inc. · 2012
  7. Descendant · cites it directly · 17 of its ownK121943 Xpress Multi-Sinus Dilation ToolEntellus Medical, Inc. · 2012
  8. Descendant · 2 generations on · 14 of its ownK132440 Xpress Multi-Sinus Dilation ToolEntellus Medical, Inc. · 2013
  9. Descendant · 3 generations on · 13 of its ownK142252 XprESS Multi-Sinus Dilation ToolEntellus Medical, Inc. · 2014
  10. Descendant · 4 generations on · 11 of its ownK152434 XprESS Multi-Sinus Dilation SystemEntellus Medical, Inc. · 2015
  11. Descendant · 5 generations on · 9 of its ownK163509 XprESS ENT Dilation SystemEntellus Medical, Inc. · 2017
Show all 15 generations
  1. Root · 15 generations backK936109 Sharplan Model 1120 CO2 Surgical LaserSharplan Lasers, Inc. · 1994
  2. 14 generations backK960521 Sharplan Lasers, Inc. Silktouch Flash ScannerSharplan Lasers, Inc. · 1996
  3. 13 generations backK963339 Coherent Ultrapulse CO2 Surgical LasersCoherent Medical Group · 1997
  4. 12 generations backK974789 Coherent Ultrapulse S Series CO2 Surgical Lasers Model C and LLumenis, Inc. · 1998
  5. 11 generations backK990947 Modified Versapulse Select Single Wavelength, HO: Yag and Dual…Lumenis, Inc. · 1999
  6. 10 generations backK011703 Lumenis Versapulse Powersuite Holmium (HO:Yag) and Dual Wavelength…Lumenis · 2001 · Recalled
  7. 9 generations backK014290 Entec Plasma WandsArthrocare Corp. · 2002
  8. 8 generations backK021364 Modification to Entec Plasma WandsArthrocare Corp. · 2002
  9. 7 generations backK030108 Arthrocare Ent Coblator Surgery SystemArthrocare Corp. · 2003 · Recalled
  10. 6 generations backK034004 Diego RF Powered Dissector and Drill System ConsoleGyrus Ent LLC · 2004
  11. 5 generations backK072302 Entellus Medical RS-Series SystemEntellus Medical, Inc. · 2008
  12. 4 generations backK081542 Modification to Entellus Medical RS-Series SystemEntellus Medical, Inc. · 2008
  13. 3 generations backK093007 Entellus Medical Balloon DeviceEntellus Medical, Inc. · 2010
  14. 2 generations backK102003 Xpress Balloon DeviceEntellus Medical, Inc. · 2010
  15. 1 generation backK112506 Xpress Multi-Sinus Dilation ToolEntellus Medical, Inc. · 2011
  16. This deviceK121174 Xpress Multi-Sinus Dilation ToolEntellus Medical, Inc. · 2012

Showing 5 of 20 descendants. See all descendants

Descendants cleared per year

2012: 12013: 22014: 12015: 12016: 22017: 12018: 22020: 32021: 12022: 12023: 42026: 1
2012high 4 (2023) · low 0 (2019)2026

Most influential descendants

Showing 5 of 20 · See all
  • K121943Xpress Multi-Sinus Dilation ToolEntellus Medical, Inc. · 2012 · cites it directly17descendants
  • K132440Xpress Multi-Sinus Dilation ToolEntellus Medical, Inc. · 2013 · 2 generations on14descendants
  • K142252XprESS Multi-Sinus Dilation ToolEntellus Medical, Inc. · 2014 · 3 generations on13descendants
  • K152434XprESS Multi-Sinus Dilation SystemEntellus Medical, Inc. · 2015 · 4 generations on11descendants
  • K163509XprESS ENT Dilation SystemEntellus Medical, Inc. · 2017 · 5 generations on9descendants
View FIG. 1 as a table

Line of descent and top descendants

GenerationNumberDeviceApplicantDecidedRecalls
−15K936109Sharplan Model 1120 CO2 Surgical LaserSharplan Lasers, Inc.1994—
−14K960521Sharplan Lasers, Inc. Silktouch Flash ScannerSharplan Lasers, Inc.1996—
−13K963339Coherent Ultrapulse CO2 Surgical LasersCoherent Medical Group1997—
−12K974789Coherent Ultrapulse S Series CO2 Surgical Lasers Model C and LLumenis, Inc.1998—
−11K990947Modified Versapulse Select Single Wavelength, HO: Yag and Dual Wavelength, HO…Lumenis, Inc.1999—
−10K011703Lumenis Versapulse Powersuite Holmium (HO:Yag) and Dual Wavelength…Lumenis20012
−9K014290Entec Plasma WandsArthrocare Corp.2002—
−8K021364Modification to Entec Plasma WandsArthrocare Corp.2002—
−7K030108Arthrocare Ent Coblator Surgery SystemArthrocare Corp.20031
−6K034004Diego RF Powered Dissector and Drill System ConsoleGyrus Ent LLC2004—
−5K072302Entellus Medical RS-Series SystemEntellus Medical, Inc.2008—
−4K081542Modification to Entellus Medical RS-Series SystemEntellus Medical, Inc.2008—
−3K093007Entellus Medical Balloon DeviceEntellus Medical, Inc.2010—
−2K102003Xpress Balloon DeviceEntellus Medical, Inc.2010—
−1K112506Xpress Multi-Sinus Dilation ToolEntellus Medical, Inc.2011—
0 (this device)K121174Xpress Multi-Sinus Dilation ToolEntellus Medical, Inc.2012—
+1K121943Xpress Multi-Sinus Dilation ToolEntellus Medical, Inc.2012—
+2K132440Xpress Multi-Sinus Dilation ToolEntellus Medical, Inc.2013—
+3K142252XprESS Multi-Sinus Dilation ToolEntellus Medical, Inc.2014—
+4K152434XprESS Multi-Sinus Dilation SystemEntellus Medical, Inc.2015—
+5K163509XprESS ENT Dilation SystemEntellus Medical, Inc.2017—

Other ancestors by year cleared

Year clearedDevicesWith a Class I recall
198010
198610
198910
199010
199130
199230
199310
199440
199570
199680
199740
199870
199910
2000120
200130
200250
200310
200510
200610

Descendants by year cleared

Year clearedDevicesWith a Class I recall
201210
201320
201410
201510
201620
201710
201820
202030
202110
202210
202340
202610
FIG. 1 — Lineage of K121174, 1994–2026Source: FDA 510(k) summaries, read by 510(k) Report · How lineage is built

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Notable FDA decisions, review times and new Class I recalls. See an issue.

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 LRC? 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 LRC device

  1. #1 K230258 BB 8 Sinus Dilation Kitscore 11.1 · 20 generations · no Class I recall
  2. #2 Held for the reportin the report
  3. #3 Held for the reportin the report
Get a 510(k) 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.

TypeNumberDeviceApplicantDecidedRecalls
*K112506Xpress Multi-Sinus Dilation ToolEntellus Medical, Inc.2011—

Also cleared against K112506: 1 other device →

What descends from it? (20)

See all 20

3 later devices cite it directly; ranked here by how many devices descend from each in turn.

NumberDeviceApplicantDecidedDescendants
K121943Xpress Multi-Sinus Dilation ToolEntellus Medical, Inc.201217
K181838Sinusway Dilation System3nt Medical, Ltd.20180
K153341Relieva Scout Multi-Sinus Dilation SystemAcclarent, Inc.20160

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 18 years and passes through 7 companies; a new generation was cleared every 1.1 years on median.
  • 6 of the 80 ancestors have a recall of any class.
  • Of its descendants, K121943 (Entellus Medical, Inc., 2012) has gone furthest, with 17 descendants of its own.
  • 1 other device also cites its predicate K112506.

How does its category compare?

All LRC devices

LRC Instrument, Ent Manual Surgical: FDA decisions, review times, recalls and adverse event reports over 20 years. 2012, this device’s year, is highlighted.

FDA decisions per year · LRC

1in 2023

2008: 22009: 12010: 22011: 62012: 72013: 72014: 32015: 62016: 32017: 22018: 12019: 12020: 42022: 12023: 1
2007high 7 (2012) · low 0 (2007)2026

2026 to Oct 25, outlined.

Median 510(k) review, days · LRC

131in 2020

2011: 106 days median2012: 50 days median2013: 104 days median2014: 29 days median2015: 105 days median2016: 100 days median2020: 131 days median
2007high 131 (2020) · low 29 (2014)2026

Receipt to decision; years with fewer than 3 clearances left blank.

Recalls per year · LRC

1in 2024

2023: 12024: 1
2007high 1 (2023) · low 0 (2007)2026

Class I (0 since 2007) Class II/III not classified

Adverse event reports per year · LRC

44in 2025

2007: 12009: 82010: 112011: 142012: 482013: 532014: 532015: 412016: 392017: 322018: 422019: 192020: 202021: 232022: 252023: 142024: 512025: 44
2007high 53 (2013) · low 0 (2008)2025

MAUDE reports naming product code LRC, not matched to any one device; reports are not rates.

View these four charts as a table
YearDecisionsMedian 510(k) review, daysRecalls (Class I)MAUDE reports
20070—01
20082—00
20091—08
20102—011
20116106014
2012750048
20137104053
2014329053
20156105041
20163100039
20172—032
20181—042
20191—019
20204131020
20210—023
20221—025
20231—114
20240—151
20250—044
20260—0—

What is it indicated for?

To access and treat the frontal recesses, sphenoid sinus ostia and maxillary ostia/ethmoid infundibula in adults using a trans-nasal approach. The bony sinus outflow tracts are remodeled by balloon displacement of adjacent bone and paranasal sinus structures.

Indications for use as stated in the FDA summary.

Cite this page

510(k) Report. “K121174: Xpress Multi-Sinus Dilation Tool.” Lineage record from FDA 510(k) data and the FDA summary. Updated Nov 3, 2026. Accessed Nov 6, 2026. https://510kreport.com/device/K121174

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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