Reported Reactions

Devices › Automated external defibrillators (non-wearable)

Device brand name · Defibrillators automatic external

Lifepak R 1000 Defibrillator: medical device reports filed with FDA

1,080 reports name it, 2012–2026. Manufacturer given most often on reports: Physio-Control. Product code MKJ.

1,080
device reports naming the brand
0% of all MAUDE reports · about 75 a year
30
reports, 12 months to August 2026
25 in the 12 months before
96.4%
classified as malfunction
96.8% across the product code
3.3%
classified as death, as reported
36 reports · not verified by FDA

1,080 medical device reports received by FDA name the brand "Lifepak R 1000 Defibrillator" (defibrillators automatic external); the manufacturer given most often on reports is Physio-Control; received from January 2012 to August 2026. Brand names are as the reporter or manufacturer wrote them, so one product can appear under several spellings.

30 reports arrived in the 12 months to August 2026, up 20% from 25 in the 12 months before. FDA releases MAUDE data monthly; reports can arrive months after an event, so the newest months grow in later releases. The event types recorded are malfunction (96.4%), death (3.3%) and injury (0.3%); across all automated external defibrillators (non-wearable) reports (product code MKJ) death is recorded in 1.7% and malfunction in 96.8%. Event type is the reporter's classification of the report, not a verified outcome.

The device problems coded most often are failure to power up (23.7%), device operates differently than expected (15.9%) and power problem (7.1%). The patient problems coded most often are no patient involvement, death and not applicable. FDA states that "MDR data alone cannot be used to establish rates of events, evaluate a change in event rates over time or compare event rates between devices. The number of reports cannot be interpreted or used in isolation to reach conclusions about the existence, severity, or frequency of problems associated with devices." It adds that the reporting system "has limitations, including the potential submission of incomplete, inaccurate, untimely, unverified, or biased data."

Reports by month, five years

047Sep 2021: 3Oct 2021: 5Nov 2021: 7Dec 2021: 22022Jan 2022: 6Feb 2022: 4Mar 2022: 1Apr 2022: 2May 2022: 3Jun 2022: 1Jul 2022: 1Aug 2022: 1Sep 2022: 1Oct 2022: 0Nov 2022: 4Dec 2022: 02023Jan 2023: 2Feb 2023: 0Mar 2023: 4Apr 2023: 0May 2023: 3Jun 2023: 2Jul 2023: 2Aug 2023: 1Sep 2023: 4Oct 2023: 4Nov 2023: 2Dec 2023: 42024Jan 2024: 0Feb 2024: 3Mar 2024: 3Apr 2024: 7May 2024: 6Jun 2024: 3Jul 2024: 3Aug 2024: 3Sep 2024: 1Oct 2024: 3Nov 2024: 2Dec 2024: 42025Jan 2025: 3Feb 2025: 1Mar 2025: 1Apr 2025: 1May 2025: 2Jun 2025: 3Jul 2025: 2Aug 2025: 2Sep 2025: 3Oct 2025: 2Nov 2025: 0Dec 2025: 52026Jan 2026: 3Feb 2026: 1Mar 2026: 5Apr 2026: 2May 2026: 3Jun 2026: 4Jul 2026: 0Aug 2026: 2

Reports by the month FDA received them. FDA releases MAUDE data monthly; reports can arrive months after an event, so the newest months grow in later releases.

By year received

0851702012: 5320122013: 842014: 16420142015: 1702016: 12620162017: 1082018: 8820182019: 512020: 5020202021: 512022: 2420222023: 282024: 3820242025: 252026: 202026

Event type and report source

Event type, as classified on the report

Death3.3%36
Injury0.3%3
Malfunction96.4%1,041
Other0%0
Not given0%0

Who filed the report

Manufacturer report100%1,080
Voluntary report0%0
User facility report0%0
Distributor report0%0
Not given0%0

Grey bar: all 269,686 reports carrying product code MKJ. Event type is the filer's classification and is not verified by FDA.

Device problems coded

Device problem (FDA code)ReportsShareShare across product code
Failure to power up25623.7%13%
Device operates differently than expectedthe device behaved unexpectedly17215.9%11.8%
Power problem777.1%1%
No display/image575.3%4.2%
Failure to run on ac/dc514.7%0.9%
Device inoperablethe device could not be used474.4%1.9%
Device displays incorrect message454.2%11.6%
Failure to sense423.9%0.7%
Unexpected shutdown403.7%1.8%
Failure to deliver energy383.5%0.7%
Electrical /electronic property probleman electrical or electronic problem373.4%1.9%
Device sensing problem363.3%0.7%
Failure to charge343.1%2.5%
Failure to deliver shock/stimulation312.9%1.8%
Premature discharge of battery262.4%1%
Connection problema connection problem211.9%0.5%
Defibrillation/stimulation problem211.9%3.2%
Unintended power up201.9%0.1%
Incorrect interpretation of signal181.7%0.4%
Inappropriate/inadequate shock/stimulation161.5%0.5%

FDA's device problem codes as entered on the report; one report can carry several. Generic codes such as "no apparent adverse event" are left out.

Patient problems coded

Patient problem (FDA code)ReportsShare
No patient involvement67262.2%
Deaththe patient died; cause not stated by this term343.1%
Not applicable282.6%
Ventricular fibrillationa chaotic rhythm from the lower heart chambers20.2%
Asystole10.1%
Coma10.1%
Ischemia10.1%

Patient problem codes are present mainly in reports filed since 2019 and are often blank.

In context

MeasureLifepak R 1000 DefibrillatorProduct code MKJAll MAUDE reports
Reports1,080269,68626,136,888
Share of that pool—0.4%0%
Classified as death, per 1,000 reports33179
Classified as injury0.3%0.7%36.2%
Classified as malfunction96.4%96.8%62.3%
Filed by the manufacturer100%99.3%94.9%

Shares are of reports, not of devices in use. FDA states that "MDR data alone cannot be used to establish rates of events, evaluate a change in event rates over time or compare event rates between devices. The number of reports cannot be interpreted or used in isolation to reach conclusions about the existence, severity, or frequency of problems associated with devices." It adds that the reporting system "has limitations, including the potential submission of incomplete, inaccurate, untimely, unverified, or biased data."

Other brands with product code MKJ

BrandReportsLatest 12 monthsClassified as death
M Series27,11242.3%
Heartstart Mrx18,59200.7%
HeartStart MRx -EMS Defibrillator16,166330.8%
Heart Start XL15,944950.9%
R Series Defibrillator15,39300.9%
X Series13,9831,6922.7%
HeartStart XL+ Defibrillator/Monitor13,1882100.4%
Heartstart Onsite10,96400.8%
Aed Plus9,2254232.2%
Heartsine Samaritan 300p And Pad Pak8,19700.3%
E Series Defibrillator8,05201.5%
Lifepak R 15 Monitor/Defibrillator6,1174631.4%
Heartstart Frx5,97821.3%
Efficia Dfm1005,07600.6%
LIFEPAK 15 defibrillator/monitor4,7163691%

Ordered by report count for navigation only. FDA states that "MDR data alone cannot be used to establish rates of events, evaluate a change in event rates over time or compare event rates between devices. The number of reports cannot be interpreted or used in isolation to reach conclusions about the existence, severity, or frequency of problems associated with devices." It adds that the reporting system "has limitations, including the potential submission of incomplete, inaccurate, untimely, unverified, or biased data." FDA also states that "common products may have a higher number of adverse events due to the higher total number of people using the product."

Questions about Lifepak R 1000 Defibrillator reports

How many FDA reports name Lifepak R 1000 Defibrillator?

1,080 medical device reports in the openFDA MAUDE release of 28 Sep 2026, covering reports received through August 2026; 30 in the latest 12 months.

What kinds of events are reported?

malfunction (96.4%), death (3.3%) and injury (0.3%). "Event type" is how the report was classified when filed: death, injury, malfunction or other.

What device problems are coded?

failure to power up (23.7%), device operates differently than expected (15.9%), power problem (7.1%), no display/image (5.3%) and failure to run on ac/dc (4.7%). These are FDA's device problem codes as entered on the report.

Who files these reports?

manufacturer reports (100%). Manufacturers and user facilities are required to report; voluntary reports come from health professionals and the public.

Do these reports show that Lifepak R 1000 Defibrillator was at fault?

No. FDA states that "MDR data alone cannot be used to establish rates of events, evaluate a change in event rates over time or compare event rates between devices. The number of reports cannot be interpreted or used in isolation to reach conclusions about the existence, severity, or frequency of problems associated with devices." It adds that the reporting system "has limitations, including the potential submission of incomplete, inaccurate, untimely, unverified, or biased data." FDA adds that "a causal relationship cannot be established between product and reactions listed in a report."

How do I report a problem with a medical device?

Through FDA MedWatch (Form FDA 3500 for health professionals and consumers), or to the manufacturer. See the guide on how to report.

Where this comes from. Counts are built from the openFDA Device Adverse Event (MAUDE) bulk export released 28 Sep 2026, which holds reports FDA received through 31 Aug 2026. Brand, generic and manufacturer names are as written on the reports; product code names come from FDA's device classification. A report counts here when any device it lists carries this brand name after punctuation and capitalisation are normalised. No report narrative, lot number, patient detail or reporter identity is published. See the methodology and sources; FDA's record is authoritative, and corrections are handled within five working days.

Drug data (FAERS) through 30 Jun 2026; device data (MAUDE) through 31 Aug 2026. Not medical advice.