510(k) Report

510(k) · Cleared

Cleared

Atricure Bipolar System

K110117510(k) TraditionalCleared Apr 8, 201180-day reviewClass II21 CFR 878.4400

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

AtriCure, Inc. · OCL Surgical Device, For Cutting, Coagulation, And/Or Ablation Of Tissue, Including Cardiac Tissue

Cleared on Apr 8, 2011 as substantially equivalent to K020919 (AtriCure, Inc., 2002) and 4 other predicates after an 80-day review. Its family tree reaches back 10 generations to 1995. 5 later devices descend from it.

Decided
Apr 8, 2011
Review
80 days
Class
Class II
Product code
OCL
Recalls
None
Predicates
5

Its longest line of descent runs back 10 generations to K942299 (1995). 59 ancestors in all, the oldest K811390 (1981). 5 later devices descend from it, 3 citing it directly.

Other ancestors, by year clearedDescendants, by year cleared 2007: 1 other ancestor2005: 1 other ancestor2004: 3 other ancestors2002: 5 other ancestors2001: 6 other ancestors2003: 2 other ancestors2000: 4 other ancestors1999: 3 other ancestors1998: 5 other ancestors1997: 7 other ancestors1995: 4 other ancestors1994: 1 other ancestor1992: 2 other ancestors1987: 1 other ancestor1988: 1 other ancestor1981: 1 other ancestor1996: 1 other ancestor1991: 1 other ancestor2021: 2 descendants cleared2022: 1 descendant cleared2025: 1 descendant cleared2024: 1 descendant clearedK942299 · Endocare Cryotherapy System · Cytocare, Inc. · 1995K963826 · Endocare Crycare Cryosurgical System · Endocare, Inc. · 1996×2: 2 generations cleared close together, K973686 (1997), K980110 (1998) K011722 · Atricure Bipolar Coagulation System · AtriCure, Inc. · 2001K020919 · Atricure Bipolar System, Models ASU1, ASU2, ASU3, LHP1, LHP2, RHP1 · AtriCure, Inc. · 2002K031247 · Cardioblate Bipolar Radiofrequency Surgical Ablation System · Medtronic Vascular · 2003K060400 · Cardioblate Surgical Ablation Generator, Model 68000; Cardioblate BP2 Surgical Ablation Device, Model 60831; Cardioblat · Medtronic, Inc. · 2006K063630 · Atricure Ablation System · AtriCure, Inc. · 2007K101174 · Atricure Bipolar System Including Isolator Synergy Dual Electrode Clamps Model OLL2, OSL2, EMR2, EML2 · AtriCure, Inc. · 201019801990200020102020
  1. Root · 10 generations backK942299 Endocare Cryotherapy SystemCytocare, Inc. · 1995
  2. 6 generations between
  3. 3 generations backK060400 Cardioblate Surgical Ablation Generator, Model 68000; Cardioblate…Medtronic, Inc. · 2006
  4. 2 generations backK063630 Atricure Ablation SystemAtriCure, Inc. · 2007
  5. 1 generation backK101174 Atricure Bipolar System Including Isolator Synergy Dual Electrode…AtriCure, Inc. · 2010
  6. This deviceK110117 Atricure Bipolar SystemAtriCure, Inc. · 2011
  7. Descendant · cites it directly · 2 of its ownK210477 AtriCure Isolator Encompass Ablation System, GLIDEPATH Magnetic GUIDEAtriCure, Inc. · 2021
  8. Descendant · cites it directly · 2 of its ownK211311 AtriCure Isolator® Synergy™ Surgical Ablation SystemAtriCure, Inc. · 2021
  9. Descendant · 2 generations on · 0 of its ownK252056 Isolator® Synergy™ EnCompass Clamp and Guide system (OLH, OSH, GPM100)AtriCure, Inc. · 2025
  10. Descendant · 2 generations on · 0 of its ownK234151 Isolator Synergy EnCapture Ablation System (EMH)AtriCure, Inc. · 2024
  11. Descendant · cites it directly · 0 of its ownK221358 Isolator® Linear Pen (MLP1); Isolator® Transpolar™ Pen (MAX1, MAX5)…AtriCure, Inc. · 2022
Show all 10 generations
  1. Root · 10 generations backK942299 Endocare Cryotherapy SystemCytocare, Inc. · 1995
  2. 9 generations backK963826 Endocare Crycare Cryosurgical SystemEndocare, Inc. · 1996
  3. 8 generations backK973686 Endocare Cryocare Cryosurgical SystemEndocare, Inc. · 1997
  4. 7 generations backK980110 Endocre Cryocare Cryosurgical SystemEndocare, Inc. · 1998
  5. 6 generations backK011722 Atricure Bipolar Coagulation SystemAtriCure, Inc. · 2001
  6. 5 generations backK020919 Atricure Bipolar System, Models ASU1, ASU2, ASU3, LHP1, LHP2, RHP1AtriCure, Inc. · 2002
  7. 4 generations backK031247 Cardioblate Bipolar Radiofrequency Surgical Ablation SystemMedtronic Vascular · 2003
  8. 3 generations backK060400 Cardioblate Surgical Ablation Generator, Model 68000; Cardioblate…Medtronic, Inc. · 2006
  9. 2 generations backK063630 Atricure Ablation SystemAtriCure, Inc. · 2007
  10. 1 generation backK101174 Atricure Bipolar System Including Isolator Synergy Dual Electrode…AtriCure, Inc. · 2010
  11. This deviceK110117 Atricure Bipolar SystemAtriCure, Inc. · 2011

Most influential descendants

Showing 5 of 5 · See all
  • K210477AtriCure Isolator Encompass Ablation System, GLIDEPATH Magnetic GUIDEAtriCure, Inc. · 2021 · cites it directly2descendants
  • K211311AtriCure Isolator® Synergy™ Surgical Ablation SystemAtriCure, Inc. · 2021 · cites it directly2descendants
  • K252056Isolator® Synergy™ EnCompass Clamp and Guide system (OLH, OSH, GPM100)AtriCure, Inc. · 2025 · 2 generations on0descendants
  • K234151Isolator Synergy EnCapture Ablation System (EMH)AtriCure, Inc. · 2024 · 2 generations on0descendants
  • K221358Isolator® Linear Pen (MLP1); Isolator® Transpolar™ Pen (MAX1, MAX5), Coolrail® Linear…AtriCure, Inc. · 2022 · cites it directly0descendants
View FIG. 1 as a table

Line of descent and top descendants

GenerationNumberDeviceApplicantDecidedRecalls
−10K942299Endocare Cryotherapy SystemCytocare, Inc.1995—
−9K963826Endocare Crycare Cryosurgical SystemEndocare, Inc.1996—
−8K973686Endocare Cryocare Cryosurgical SystemEndocare, Inc.1997—
−7K980110Endocre Cryocare Cryosurgical SystemEndocare, Inc.1998—
−6K011722Atricure Bipolar Coagulation SystemAtriCure, Inc.2001—
−5K020919Atricure Bipolar System, Models ASU1, ASU2, ASU3, LHP1, LHP2, RHP1AtriCure, Inc.2002—
−4K031247Cardioblate Bipolar Radiofrequency Surgical Ablation SystemMedtronic Vascular2003—
−3K060400Cardioblate Surgical Ablation Generator, Model 68000; Cardioblate BP2 Surgical…Medtronic, Inc.2006—
−2K063630Atricure Ablation SystemAtriCure, Inc.2007—
−1K101174Atricure Bipolar System Including Isolator Synergy Dual Electrode Clamps Model…AtriCure, Inc.2010—
0 (this device)K110117Atricure Bipolar SystemAtriCure, Inc.2011—
+1K210477AtriCure Isolator Encompass Ablation System, GLIDEPATH Magnetic GUIDEAtriCure, Inc.2021—
+1K211311AtriCure Isolator® Synergy™ Surgical Ablation SystemAtriCure, Inc.2021—
+2K252056Isolator® Synergy™ EnCompass Clamp and Guide system (OLH, OSH, GPM100)AtriCure, Inc.2025—
+2K234151Isolator Synergy EnCapture Ablation System (EMH)AtriCure, Inc.2024—
+1K221358Isolator® Linear Pen (MLP1); Isolator® Transpolar™ Pen (MAX1, MAX5), Coolrail®…AtriCure, Inc.2022—

Other ancestors by year cleared

Year clearedDevicesWith a Class I recall
198110
198710
198810
199110
199220
199410
199540
199610
199770
199850
199930
200040
200160
200250
200320
200430
200510
200710

Descendants by year cleared

Year clearedDevicesWith a Class I recall
202120
202210
202410
202510
FIG. 1 — Lineage of K110117, 1995–2025Source: 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 OCL? 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 OCL device

  1. #1 K252056 Isolator® Synergy™ EnCompass Clamp and Guide…score 13.0 · 12 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? (5)

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
*K020919Atricure Bipolar System, Models ASU1, ASU2, ASU3, LHP1, LHP2, RHP1
Summary page 1
…the ablation of cardiac tissue during surgery. Predicate Devices The predicate devices for the AtriCure Bipolar System include the AtriCure Bipolar System (K02091 9), the AtriCure Transpolar System (K052893), the AtriCure Ablation System (K063630), the AtriCure Bipolar System (K043579),…
AtriCure, Inc.2002—
*K052893Atricure Transpolar System
Summary page 1
…ry. Predicate Devices The predicate devices for the AtriCure Bipolar System include the AtriCure Bipolar System (K02091 9), the AtriCure Transpolar System (K052893), the AtriCure Ablation System (K063630), the AtriCure Bipolar System (K043579), and the AtriCure Bipolar System inc…
AtriCure, Inc.2005—
*K063630Atricure Ablation System
Summary page 1
…ces for the AtriCure Bipolar System include the AtriCure Bipolar System (K02091 9), the AtriCure Transpolar System (K052893), the AtriCure Ablation System (K063630), the AtriCure Bipolar System (K043579), and the AtriCure Bipolar System including Isolator Synergy Dual Electrode Clamps (…
AtriCure, Inc.2007—
*K043579Atricure Bipolar System
Summary page 1
…lude the AtriCure Bipolar System (K02091 9), the AtriCure Transpolar System (K052893), the AtriCure Ablation System (K063630), the AtriCure Bipolar System (K043579), and the AtriCure Bipolar System including Isolator Synergy Dual Electrode Clamps (K101 174). Device Description Th…
AtriCure, Inc.2007—
*K101174Atricure Bipolar System Including Isolator Synergy Dual Electrode Clamps Model OLL2…
Summary page 1
…AtriCure Ablation System (K063630), the AtriCure Bipolar System (K043579), and the AtriCure Bipolar System including Isolator Synergy Dual Electrode Clamps (K101 174). Device Description The AtriCure Bipolar System includes a hand held, single use, bipolar radiofrequency (RF) surg…
AtriCure, Inc.2010—

Also cleared against K020919: 8 other devices →

What descends from it? (5)

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

NumberDeviceApplicantDecidedDescendants
K210477AtriCure Isolator Encompass Ablation System, GLIDEPATH Magnetic GUIDEAtriCure, Inc.20212
K211311AtriCure Isolator® Synergy™ Surgical Ablation SystemAtriCure, Inc.20212
K221358Isolator® Linear Pen (MLP1); Isolator® Transpolar™ Pen (MAX1, MAX5), Coolrail® Linear…AtriCure, Inc.20220

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 16 years and passes through 5 companies; a new generation was cleared every 1.2 years on median.
  • 3 of the 59 ancestors have a recall of any class.
  • Of its descendants, K210477 (AtriCure, Inc., 2021) has gone furthest, with 2 descendants of its own.
  • 8 other devices also cite its predicate K020919.

How does its category compare?

All OCL devices

OCL Surgical Device, For Cutting, Coagulation, And/Or Ablation Of Tissue, Including Cardiac Tissue: FDA decisions, review times, recalls and adverse event reports over 20 years. 2011, this device’s year, is highlighted.

FDA decisions per year · OCL

1in 2025

2007: 32008: 52009: 22010: 22011: 22012: 62013: 22014: 12017: 12018: 22019: 62020: 12021: 22022: 22024: 12025: 1
2007high 6 (2012) · low 0 (2015)2026

2026 to Oct 25, outlined.

Median 510(k) review, days · OCL

85in 2019

2007: 139 days median2008: 81 days median2012: 75 days median2019: 85 days median
2007high 139 (2007) · low 75 (2012)2026

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

Recalls per year · OCL

1in 2021

2008: 12009: 12010: 22013: 12016: 12019: 42020: 42021: 1
2007high 4 (2019) · low 0 (2007)2026

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

Adverse event reports per year · OCL

46in 2025

2009: 82010: 232011: 212012: 212013: 132014: 152015: 312016: 762017: 552018: 612019: 492020: 372021: 632022: 592023: 992024: 592025: 46
2007high 99 (2023) · low 0 (2007)2025

MAUDE reports naming product code OCL, 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
2007313900
200858110
20092—18
20102—223
20112—021
2012675021
20132—113
20141—015
20150—031
20160—176
20171—055
20182—061
2019685449
20201—437
20212—163
20222—059
20230—099
20241—059
20251—046
20260—0—

What is it indicated for?

The AtriCure Bipolar System is intended for the ablation of caridac tissue during surgery.

Indications for use as stated in the FDA summary.

Cite this page

510(k) Report. “K110117: Atricure Bipolar System.” Lineage record from FDA 510(k) data and the FDA summary. Updated Nov 3, 2026. Accessed Nov 6, 2026. https://510kreport.com/device/K110117

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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