510(k) · Cleared
ClearedZoll R Series
Data to Oct 25, 2026 (FDA decisions) Oct 12, 2026 (recalls) Sep 30, 2026 (MAUDE) refreshed weekly
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.
- Root · 10 generations backK962603 Masimo Set MS-1 Pulse Oximeter & the Lnop Series of Sensors & CablesMasimo Corp. · 1997
- 6 generations between
- 3 generations backK060559 Zoll R Series DefibrillatorZOLL Medical Corporation · 2006 · Recalled
- 2 generations backK081574 Zoll R SeriesZOLL Medical Corporation · 2008
- 1 generation backK110361 Zoll R Series with 2010 Aha Guidelines Software UpdateZoll Medical Corporation, World Wide Headquarters · 2011
- This deviceK120907 Zoll R SeriesZoll Medical Corporation, World Wide Headquarters · 2012
- Descendant · cites it directly · 4 of its ownK133269 Zoll X SeriesZoll Medical Corporation, World Wide Headquarters · 2014
- Descendant · 2 generations on · 2 of its ownK141774 Zoll X SeriesZOLL Medical Corporation · 2014
- Descendant · 3 generations on · 1 of its ownK202375 ZOLL Propaq MZOLL Medical Corporation · 2021
- Descendant · 4 generations on · 0 of its ownK233354 WVSM Pro (Series) (500-0030-XX)Athena Gtx, Inc. · 2024
- Descendant · cites it directly · 0 of its ownK150055 OneStep Pediatric CPR Multi-Function ElectrodeBio-Detek, Inc. · 2015
Show all 10 generations
- Root · 10 generations backK962603 Masimo Set MS-1 Pulse Oximeter & the Lnop Series of Sensors & CablesMasimo Corp. · 1997
- 9 generations backK973887 Masimo Set MS-1P Pulse Oximeter and the Lnop Series of Sensors and…Masimo Corp. · 1998
- 8 generations backK982255 Model 2000 Pulse OximeterIvy Biomedical Systems, Inc. · 1998
- 7 generations backK991823 N-395 Pulse Oximeter, Model N-395Nellcor Puritan Bennett, Inc. · 1999
- 6 generations backK012451 Propaq Encore Models 202, 204, 206; Propaq CS Models 242, 244, 246Welch Allyn Protocol, Inc. · 2001
- 5 generations backK032363 Zoll M Series Nibp OptionZoll Medical Corp · 2003
- 4 generations backK042007 Zoll E Series DefibrillatorZoll Medical Corp · 2005 · Recalled
- 3 generations backK060559 Zoll R Series DefibrillatorZOLL Medical Corporation · 2006 · Recalled
- 2 generations backK081574 Zoll R SeriesZOLL Medical Corporation · 2008
- 1 generation backK110361 Zoll R Series with 2010 Aha Guidelines Software UpdateZoll Medical Corporation, World Wide Headquarters · 2011
- This deviceK120907 Zoll R SeriesZoll Medical Corporation, World Wide Headquarters · 2012
Showing 5 of 6 descendants. See all descendants
Descendants cleared per year
Class I recalls in this family
- K022732 Infant/Child Reduced Energy Electrodes3 generations back · 2002
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
| Generation | Number | Device | Applicant | Decided | Recalls |
|---|---|---|---|---|---|
| −10 | K962603 | Masimo Set MS-1 Pulse Oximeter & the Lnop Series of Sensors & Cables | Masimo Corp. | 1997 | — |
| −9 | K973887 | Masimo Set MS-1P Pulse Oximeter and the Lnop Series of Sensors and Cables | Masimo Corp. | 1998 | — |
| −8 | K982255 | Model 2000 Pulse Oximeter | Ivy Biomedical Systems, Inc. | 1998 | — |
| −7 | K991823 | N-395 Pulse Oximeter, Model N-395 | Nellcor Puritan Bennett, Inc. | 1999 | — |
| −6 | K012451 | Propaq Encore Models 202, 204, 206; Propaq CS Models 242, 244, 246 | Welch Allyn Protocol, Inc. | 2001 | — |
| −5 | K032363 | Zoll M Series Nibp Option | Zoll Medical Corp | 2003 | — |
| −4 | K042007 | Zoll E Series Defibrillator | Zoll Medical Corp | 2005 | 3 |
| −3 | K060559 | Zoll R Series Defibrillator | ZOLL Medical Corporation | 2006 | 1 |
| −2 | K081574 | Zoll R Series | ZOLL Medical Corporation | 2008 | — |
| −1 | K110361 | Zoll R Series with 2010 Aha Guidelines Software Update | Zoll Medical Corporation, World Wide Headquarters | 2011 | — |
| 0 (this device) | K120907 | Zoll R Series | Zoll Medical Corporation, World Wide Headquarters | 2012 | — |
| +1 | K133269 | Zoll X Series | Zoll Medical Corporation, World Wide Headquarters | 2014 | — |
| +2 | K141774 | Zoll X Series | ZOLL Medical Corporation | 2014 | — |
| +3 | K202375 | ZOLL Propaq M | ZOLL Medical Corporation | 2021 | — |
| +4 | K233354 | WVSM Pro (Series) (500-0030-XX) | Athena Gtx, Inc. | 2024 | — |
| +1 | K150055 | OneStep Pediatric CPR Multi-Function Electrode | Bio-Detek, Inc. | 2015 | — |
Other ancestors by year cleared
| Year cleared | Devices | With a Class I recall |
|---|---|---|
| 1988 | 1 | 0 |
| 1993 | 1 | 0 |
| 1995 | 1 | 0 |
| 1996 | 3 | 0 |
| 1998 | 1 | 0 |
| 1999 | 4 | 0 |
| 2000 | 1 | 0 |
| 2001 | 1 | 0 |
| 2002 | 3 | 1 |
| 2004 | 1 | 0 |
| 2005 | 2 | 0 |
| 2006 | 1 | 0 |
| 2008 | 1 | 0 |
| 2011 | 4 | 0 |
Descendants by year cleared
| Year cleared | Devices | With a Class I recall |
|---|---|---|
| 2014 | 3 | 0 |
| 2015 | 1 | 0 |
| 2021 | 1 | 0 |
| 2024 | 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.
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
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.
| Type | Number | Device | Decided |
|---|---|---|---|
| * | K110361 | Zoll R Series with 2010 Aha Guidelines Software UpdateSummary 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… | 2011 |
| * | K111594 | Zoll E SeriesSummary 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… | 2011 |
| * | K110978 | Onestep Pediatric Mfe'sSummary 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… | 2011 |
| * | K110742 | Onestep Adult Multi-Function ElectrodeSummary 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… | 2011 |
What descends from it? (6)
2 later devices cite it directly; ranked here by how many devices descend from each in turn.
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 devicesMKJ 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
2026 to Oct 25, outlined.
Median 510(k) review, days · MKJ
156in 2015
Receipt to decision; years with fewer than 3 clearances left blank.
Recalls per year · MKJ
1in 2025
Class I (23 since 2007) Class II/III not classified
Adverse event reports per year · MKJ
13,315in 2025
MAUDE reports naming product code MKJ, 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 | 7 | 69 | 12 | 3,958 |
| 2008 | 13 | 141 | 24 | 4,752 |
| 2009 | 8 | 165 | 37 | 6,782 |
| 2010 | 4 | 250 | 35 | 7,399 |
| 2011 | 11 | 36 | 7 | 8,170 |
| 2012 | 10 | 197 | 5 (1) | 9,732 |
| 2013 | 7 | 191 | 4 | 14,955 |
| 2014 | 11 | 196 | 24 (15) | 15,399 |
| 2015 | 6 | 156 | 1 | 16,129 |
| 2016 | 0 | — | 2 (1) | 17,062 |
| 2017 | 4 | — | 6 (4) | 16,684 |
| 2018 | 20 | — | 3 | 16,591 |
| 2019 | 25 | — | 6 (2) | 16,861 |
| 2020 | 52 | — | 2 | 16,197 |
| 2021 | 41 | — | 4 | 16,300 |
| 2022 | 19 | — | 3 | 14,867 |
| 2023 | 24 | — | 11 | 13,766 |
| 2024 | 27 | — | 5 | 15,109 |
| 2025 | 48 | — | 1 | 13,315 |
| 2026 | 31 | — | 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.
https://510kreport.com/device/K120907 · printed Nov 6, 2026
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