510(k) Report

510(k) · Cleared

Cleared

Zoll R Series

K120907510(k) TraditionalCleared Sep 25, 2012183-day reviewClass III21 CFR 870.5310

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

Zoll Medical Corporation, World Wide Headquarters · MKJ Automated External Defibrillators (Non-Wearable)

Cleared on Sep 25, 2012 as substantially equivalent to K110361 (Zoll Medical Corporation, World Wide Headquarters, 2011) and 3 other predicates after a 183-day review. Its family tree reaches back 10 generations to 1997. 1 of the 42 devices in its family, counting itself, has a Class I recall. 6 later devices descend from it.

Decided
Sep 25, 2012
Review
183 days
Class
Class III
Product code
MKJ
Recalls
None
Predicates
4

Its longest line of descent runs back 10 generations to K962603 (1997). 35 ancestors in all, the oldest K883375 (1988). 6 later devices descend from it, 2 citing it directly. 1 of the 42 devices in this family, counting this one, has a Class I recall.

  1. Root · 10 generations backK962603 Masimo Set MS-1 Pulse Oximeter & the Lnop Series of Sensors & CablesMasimo Corp. · 1997
  2. 6 generations between
  3. 3 generations backK060559 Zoll R Series DefibrillatorZOLL Medical Corporation · 2006 · Recalled
  4. 2 generations backK081574 Zoll R SeriesZOLL Medical Corporation · 2008
  5. 1 generation backK110361 Zoll R Series with 2010 Aha Guidelines Software UpdateZoll Medical Corporation, World Wide Headquarters · 2011
  6. This deviceK120907 Zoll R SeriesZoll Medical Corporation, World Wide Headquarters · 2012
  7. Descendant · cites it directly · 4 of its ownK133269 Zoll X SeriesZoll Medical Corporation, World Wide Headquarters · 2014
  8. Descendant · 2 generations on · 2 of its ownK141774 Zoll X SeriesZOLL Medical Corporation · 2014
  9. Descendant · 3 generations on · 1 of its ownK202375 ZOLL Propaq MZOLL Medical Corporation · 2021
  10. Descendant · 4 generations on · 0 of its ownK233354 WVSM Pro (Series) (500-0030-XX)Athena Gtx, Inc. · 2024
  11. Descendant · cites it directly · 0 of its ownK150055 OneStep Pediatric CPR Multi-Function ElectrodeBio-Detek, Inc. · 2015
Show all 10 generations
  1. Root · 10 generations backK962603 Masimo Set MS-1 Pulse Oximeter & the Lnop Series of Sensors & CablesMasimo Corp. · 1997
  2. 9 generations backK973887 Masimo Set MS-1P Pulse Oximeter and the Lnop Series of Sensors and…Masimo Corp. · 1998
  3. 8 generations backK982255 Model 2000 Pulse OximeterIvy Biomedical Systems, Inc. · 1998
  4. 7 generations backK991823 N-395 Pulse Oximeter, Model N-395Nellcor Puritan Bennett, Inc. · 1999
  5. 6 generations backK012451 Propaq Encore Models 202, 204, 206; Propaq CS Models 242, 244, 246Welch Allyn Protocol, Inc. · 2001
  6. 5 generations backK032363 Zoll M Series Nibp OptionZoll Medical Corp · 2003
  7. 4 generations backK042007 Zoll E Series DefibrillatorZoll Medical Corp · 2005 · Recalled
  8. 3 generations backK060559 Zoll R Series DefibrillatorZOLL Medical Corporation · 2006 · Recalled
  9. 2 generations backK081574 Zoll R SeriesZOLL Medical Corporation · 2008
  10. 1 generation backK110361 Zoll R Series with 2010 Aha Guidelines Software UpdateZoll Medical Corporation, World Wide Headquarters · 2011
  11. This deviceK120907 Zoll R SeriesZoll Medical Corporation, World Wide Headquarters · 2012

Showing 5 of 6 descendants. See all descendants

Descendants cleared per year

2014: 32015: 12021: 12024: 1
2014high 3 (2014) · low 0 (2016)2026

Class I recalls in this family

Most influential descendants

Showing 5 of 6 · See all
  • K133269Zoll X SeriesZoll Medical Corporation, World Wide Headquarters · 2014 · cites it directly4descendants
  • K141774Zoll X SeriesZOLL Medical Corporation · 2014 · 2 generations on2descendants
  • K202375ZOLL Propaq MZOLL Medical Corporation · 2021 · 3 generations on1descendant
  • K233354WVSM Pro (Series) (500-0030-XX)Athena Gtx, Inc. · 2024 · 4 generations on0descendants
  • K150055OneStep Pediatric CPR Multi-Function ElectrodeBio-Detek, Inc. · 2015 · cites it directly0descendants
View FIG. 1 as a table

Line of descent and top descendants

GenerationNumberDeviceApplicantDecidedRecalls
−10K962603Masimo Set MS-1 Pulse Oximeter & the Lnop Series of Sensors & CablesMasimo Corp.1997—
−9K973887Masimo Set MS-1P Pulse Oximeter and the Lnop Series of Sensors and CablesMasimo Corp.1998—
−8K982255Model 2000 Pulse OximeterIvy Biomedical Systems, Inc.1998—
−7K991823N-395 Pulse Oximeter, Model N-395Nellcor Puritan Bennett, Inc.1999—
−6K012451Propaq Encore Models 202, 204, 206; Propaq CS Models 242, 244, 246Welch Allyn Protocol, Inc.2001—
−5K032363Zoll M Series Nibp OptionZoll Medical Corp2003—
−4K042007Zoll E Series DefibrillatorZoll Medical Corp20053
−3K060559Zoll R Series DefibrillatorZOLL Medical Corporation20061
−2K081574Zoll R SeriesZOLL Medical Corporation2008—
−1K110361Zoll R Series with 2010 Aha Guidelines Software UpdateZoll Medical Corporation, World Wide Headquarters2011—
0 (this device)K120907Zoll R SeriesZoll Medical Corporation, World Wide Headquarters2012—
+1K133269Zoll X SeriesZoll Medical Corporation, World Wide Headquarters2014—
+2K141774Zoll X SeriesZOLL Medical Corporation2014—
+3K202375ZOLL Propaq MZOLL Medical Corporation2021—
+4K233354WVSM Pro (Series) (500-0030-XX)Athena Gtx, Inc.2024—
+1K150055OneStep Pediatric CPR Multi-Function ElectrodeBio-Detek, Inc.2015—

Other ancestors by year cleared

Year clearedDevicesWith a Class I recall
198810
199310
199510
199630
199810
199940
200010
200110
200231
200410
200520
200610
200810
201140

Descendants by year cleared

Year clearedDevicesWith a Class I recall
201430
201510
202110
202410
FIG. 1 — Lineage of K120907, 1997–2024Source: FDA 510(k) summaries, read by 510(k) Report · How lineage is built

Get the monthly Device Review Tracker

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.

1 device in this family has a Class I recall. A 510(k) Report weighs predicate choices, recall history and review times for a new device like this one.

  • Candidate predicates for a device like this, rankedin the report
  • Recall history across each candidate’s familyin the report
Get a 510(k) Report

What was it cleared against? (4)

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
*K110361Zoll R Series with 2010 Aha Guidelines Software Update
Summary page 5
…ge Substantial Equivalence: The features and functions of the proposed ZOLL R Series are substantially equivalent to the currently marketed ZOLL R Series (K110361) cleared for use on March 8, 2011 and the currently marketed ZOLL E Series (K111594) cleared for use on August 17, 20…
Zoll Medical Corporation, World Wide Headquarters2011—
*K111594Zoll E Series
Summary page 5
…ies are substantially equivalent to the currently marketed ZOLL R Series (K110361) cleared for use on March 8, 2011 and the currently marketed ZOLL E Series (K111594) cleared for use on August 17, 2011. The features and functions of the modified pediatric electrode are substantially…
Zoll Medical Corporation, World Wide Headquarters2011—
*K110978Onestep Pediatric Mfe's
Summary page 5
…he features and functions of the modified pediatric electrode are substantially equivalent to the currently marketed Bio-Detek One- Step Pediatric Electrode (K110978) cleared for use on May 13, 2011 and the currently marketed Bio-Detek One-Step CPR Electrode (K110742) cleared for us…
ZOLL Medical Corporation2011—
*K110742Onestep Adult Multi-Function Electrode
Summary page 5
…ently marketed Bio-Detek One- Step Pediatric Electrode (K110978) cleared for use on May 13, 2011 and the currently marketed Bio-Detek One-Step CPR Electrode (K110742) cleared for use on April 13, 2011. Comparison of Technological Characteristics The proposed ZOLL R Series features d…
ZOLL Medical Corporation20111

What descends from it? (6)

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

NumberDeviceApplicantDecidedDescendants
K133269Zoll X SeriesZoll Medical Corporation, World Wide Headquarters20144
K150055OneStep Pediatric CPR Multi-Function ElectrodeBio-Detek, Inc.20150

Has anything in its family been recalled? (1 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.

  • K022732Infant/Child Reduced Energy ElectrodesMedtronic Physio-Control Corp. · 2002 · 3 generations back · ◆ in the 2002 ancestors bar of FIG. 12 Class I recalls

What does this lineage say?

  • The line of descent spans 15 years and passes through 7 companies; a new generation was cleared every 1.6 years on median.
  • 9 of the 35 ancestors have a recall of any class; 1 has a Class I recall.
  • Of its descendants, K133269 (Zoll Medical Corporation, World Wide Headquarters, 2014) has gone furthest, with 4 descendants of its own.

How does its category compare?

All MKJ devices

MKJ Automated External Defibrillators (Non-Wearable): FDA decisions, review times, recalls and adverse event reports over 20 years. 2012, this device’s year, is highlighted.

FDA decisions per year · MKJ

48in 2025

2007: 72008: 132009: 82010: 42011: 112012: 102013: 72014: 112015: 62017: 42018: 202019: 252020: 522021: 412022: 192023: 242024: 272025: 482026 (partial year): 31
2007high 52 (2020) · low 0 (2016)2026

2026 to Oct 25, outlined.

Median 510(k) review, days · MKJ

156in 2015

2007: 69 days median2008: 141 days median2009: 165 days median2010: 250 days median2011: 36 days median2012: 197 days median2013: 191 days median2014: 196 days median2015: 156 days median
2007high 250 (2010) · low 36 (2011)2026

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

Recalls per year · MKJ

1in 2025

2007: 122008: 242009: 372010: 352011: 72012: 5, 1 Class I2013: 42014: 24, 15 Class I2015: 12016: 2, 1 Class I2017: 6, 4 Class I2018: 32019: 6, 2 Class I2020: 22021: 42022: 32023: 112024: 52025: 12026 (partial year): 3
2007high 37 (2009) · low 1 (2015)2026

Class I (23 since 2007) Class II/III not classified

Adverse event reports per year · MKJ

13,315in 2025

2007: 3,9582008: 4,7522009: 6,7822010: 7,3992011: 8,1702012: 9,7322013: 14,9552014: 15,3992015: 16,1292016: 17,0622017: 16,6842018: 16,5912019: 16,8612020: 16,1972021: 16,3002022: 14,8672023: 13,7662024: 15,1092025: 13,315
2007high 17,062 (2016) · low 3,958 (2007)2025

MAUDE reports naming product code MKJ, 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
2007769123,958
200813141244,752
20098165376,782
20104250357,399
2011113678,170
2012101975 (1)9,732
20137191414,955
20141119624 (15)15,399
20156156116,129
20160—2 (1)17,062
20174—6 (4)16,684
201820—316,591
201925—6 (2)16,861
202052—216,197
202141—416,300
202219—314,867
202324—1113,766
202427—515,109
202548—113,315
202631—3—

What is it indicated for?

Defibrillator Function Intended Use - Manual Operation Use of the R Series products in the manual mode for defibrillation is indicated on victims of cardiac arrest where there is apparent lack of circulation as indicated by: Unconsciousness. Absence of breathing. Absence of pulse. This product should be used only by qualified medical personnel for converting ventricular fibrillation and rapid ventricular tachycardia to sinus rhythm or other cardiac…

Read the full statement (1,091 words)

Defibrillator Function

Intended Use - Manual Operation

Use of the R Series products in the manual mode for defibrillation is indicated on victims of cardiac arrest where there is apparent lack of circulation as indicated by:

Unconsciousness.

Absence of breathing.

Absence of pulse.

This product should be used only by qualified medical personnel for converting ventricular fibrillation and rapid ventricular tachycardia to sinus rhythm or other cardiac rhythms capable of producing hemodynamically significant heart beats.

In manual mode, the unit can also be used for synchronized cardioversion of certain atrial or ventricular arrhythmias. A qualified physician must decide when synchronized cardioversion is appropriate.

The advisory function should be used to confirm ventricular fibrillation or wide complex ventricular tachycardia (greater than 150 beats per minute) in patients meeting the three conditions indicating lack of circulation (listed above).

Intended Use - Semiautomatic Operation (AED)

R Series products are designed for use by emergency care personnel who have completed training and certification requirements applicable to the use of a defibrillator where the device operator controls delivery of shocks to the patient.

They are specifically designed for use in early defibrillation programs where the delivery of a defibrillator shock during resuscitation involving CPR, transportation, and definitive care are incorporated into a medically-approved patient care protocol.

Use of the R Series in the Semiautomatic mode for defibrillation is indicated on victims of cardiac arrest where there is apparent lack of circulation as indicated by:

Unconsciousness.

Absence of breathing.

Absence of pulse.

Specifications for the EGG rhythm analysis function are provided in the section, "EGG Rhythm Analysis Algorithm Accuracy" on page A-29.

When the patient is less than 8 years of age or weighs less that 55 lbs. (25 Kg), you must use ZOLL pediatric defibrillation electrodes. Do not delay therapy to determine patients exact age or weight.

Intended Use - ECG Monitoring.

The unit is intended for use when EGG monitoring is indicated to evaluate the patient's heart rate or EGG morphology. In EGG monitoring mode, the unit is intended to be used by personnel who are qualified by training in the use of the RSeries defibrillator, basic life and/or advanced life support, or other physician-authorized emergency medical training.

Intended Use - Real CPR Help

The Real CPR Help function provides visual and audio feedback designed to encourage rescuers to perform chest compressions at the AHA/ERC recommended rate of 100 compressions per minute. Voice and visual prompts encourage a compression depth in accordance with AHA and/or FRC recommendations of 2 inches (5cm) minimum for adult patients.

External Pacemaker (Optional)

Intended Use - Pacemaker

This product can be used for temporary external cardiac pacing in conscious or unconscious patients as an alternative to endocardial stimulation.

The purposes of pacing include:

-Resuscitation from standstill or bradycardia of any etiology.

Noninvasive pacing has been used for resuscitation from cardiac standstill, reflex vagal standstill, drug-induced standstill (due to procainamide, quinidine, digitalis, b-blockers, verapamil, etc.) and unexpected circulatory arrest (due to anesthesia, surgery, angiography, and other therapeutic or diagnostic procedures). It has also been used for temporary acceleration of bradycardia in Stokes-Adams disease and sick-sinus syndrome. It is safer, more reliable, and more rapidly applied in an emergency than endlocardial or other temporary electrodes.

* As a standby when standstill or bradycardia might be expected.

Noninvasive pacing can be useful as a standby when cardiac arrest or symptomatic bradycardia might be expected due to acute myocardial infarction, drug toxicity, anesthesia, or surgery. It is also useful as a temporary treatment in patients awaiting pacemaker implants or the introduction of transvenous therapy. Instandby pacing applications, noninvasive pacing might provide an alternative to transvenous therapy that avoids the risks of displacement, infection, hemorrhage, embolization, perforation, phlebitis, and mechanical or electrical stimulation of ventricular tachycardia or fibrillation associated with endocardial pacing.

* Suppression of tachycardia.

Increased headt rates in response to external pacing often suppress ventricular ectopic activity and might prevent tachycardia.

Pediatric Pacing

Pacing can be performed on pediatric patients weighing 33 lb. (15 kg) or less using ZOLL pediatric hands-free therapy electrodes. Prolonged pacing (inexcess of 30 minutes), particularly in neonates, can cause burns. Periodic inspection of the underlying skin is recommended.

intended Use - SpO2 Monitoring

The RSeries pulse oximeter, with the Masimo@ SET@ technology and the LNCS@ series of oximeter sensors, is indicated for the continuous, noninvasive monitoring of arterial oxygen saturation (SpO 2) and pulse rate during both no motion and patient motion conditions for adult patients, and no motion conditions for pediatric and neonatal patients in a hospital or prehospital environment.

Intended Use - EtCO2 Monitoring

The ZOLL R Series EtCO2 option with Respironics Novametrix technology is indicated for the continuous noninvasive monitoring of end tidal carbon dioxide (EtCO2) and respiration rate in patients requiring ventilator support, in-hospital transport, or anesthesia.

This option uses the CAPNOSTAT 5 Mainstream C02 sensor attached to an airway adapter that connects to an endotracheal tube, mask or disposable mouthpiece.

The R Series EtCO2 option is designed to monitor adult, pediatric. and neonatal patients.

The following substances can influence C02 measurements made with the CAPNOSTAT 5 C02 sensor:

elevated oxygen levels

nitrous oxide

halogenated agents

The R Series EtCO2 option provides settings for high oxygen and/or nitrous oxide compensation. Halogenated anesthetic agents alter C02 readings, but the RSeries unit will monitor C02 within specifications when these agents are present at normal clinical levels. The presence of Desflurane in the exhaled breath beyond normal values (5%) may positively bias measured carbon dioxide values by up to an additional 3 mmHg.

The R Series EtCO2 option is intended for use only with the ZOLL/Respironics Novametrix CAPNOSTAT 5 Mainstream C02 Sensor and mainstream airway adapters.

The R Series EtCO2 option can be used on adult patients (21 years of age and older) and on pediatric patients, as described in the following table:

Pediatric Subpopulation Approximate Age Range

Newborn (neonate) Birth to 1 month of age

Infant 1 month to 2 years of age

Child 2 to 12 years of age

Adolescent 12-21 years of age

Intended Use - NIBP

The ZOLL R Series NIBP option is indicated for the non-invasive measurement of arterial blood pressure for resting patients in critical care and in-hospital transport.

The R Series NIBP option is designed to measure blood pressure for adult patients (21 years of age and older) and for pediatric patients, as described in the following table:

Pediatric Subpopulation Approximate Age Range

Newborn (neonate) Birth to 1 month of age

Infant 1 month to 2years of age

Child 2 to 12 years of age

Adolescent T12-1 years of age

Indications for use as stated in the FDA summary.

Cite this page

510(k) Report. “K120907: Zoll R Series.” Lineage record from FDA 510(k) data and the FDA summary. Updated Nov 3, 2026. Accessed Nov 6, 2026. https://510kreport.com/device/K120907

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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