Reported Reactions

Devices

Device brand name · Nucleus hybrid cochlear implant system

Nucleus Hybrid L24: medical device reports filed with FDA

216 reports name it, 2016–2026. Manufacturer given most often on reports: Cochlear.

216
device reports naming the brand
0% of all MAUDE reports · about 23 a year
22
reports, 12 months to August 2026
12 in the 12 months before
3.7%
classified as malfunction
62.3% across all reports
0%
classified as death, as reported
0 reports · not verified by FDA

216 medical device reports received by FDA name the brand "Nucleus Hybrid L24" (nucleus hybrid cochlear implant system); the manufacturer given most often on reports is Cochlear; received from December 2016 to August 2026. Brand names are as the reporter or manufacturer wrote them, so one product can appear under several spellings.

22 reports arrived in the 12 months to August 2026, up 83% from 12 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 injury (96.3%) and malfunction (3.7%). Event type is the reporter's classification of the report, not a verified outcome.

The device problems coded most often are therapeutic or diagnostic output failure (10.2%), insufficient device problem information (7.9%) and output problem (5.6%). The patient problems coded most often are appropriate clinical signs, symptoms and conditions term/code not available, hearing impairment and pain. 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

048Sep 2021: 2Oct 2021: 2Nov 2021: 2Dec 2021: 02022Jan 2022: 0Feb 2022: 1Mar 2022: 0Apr 2022: 0May 2022: 0Jun 2022: 4Jul 2022: 2Aug 2022: 3Sep 2022: 4Oct 2022: 0Nov 2022: 0Dec 2022: 42023Jan 2023: 6Feb 2023: 0Mar 2023: 0Apr 2023: 4May 2023: 4Jun 2023: 0Jul 2023: 4Aug 2023: 0Sep 2023: 2Oct 2023: 0Nov 2023: 2Dec 2023: 22024Jan 2024: 8Feb 2024: 0Mar 2024: 2Apr 2024: 0May 2024: 4Jun 2024: 0Jul 2024: 3Aug 2024: 0Sep 2024: 0Oct 2024: 0Nov 2024: 0Dec 2024: 02025Jan 2025: 2Feb 2025: 0Mar 2025: 5Apr 2025: 0May 2025: 2Jun 2025: 0Jul 2025: 1Aug 2025: 2Sep 2025: 2Oct 2025: 4Nov 2025: 2Dec 2025: 22026Jan 2026: 1Feb 2026: 0Mar 2026: 2Apr 2026: 0May 2026: 2Jun 2026: 5Jul 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

019372016: 320162017: 212018: 1320182019: 372020: 2520202021: 242022: 1820222023: 242024: 1720242025: 222026: 122026

Event type and report source

Event type, as classified on the report

Death0%0
Injury96.3%208
Malfunction3.7%8
Other0%0
Not given0%0

Who filed the report

Manufacturer report65.3%141
Voluntary report0%0
User facility report0%0
Distributor report34.7%75
Not given0%0

Grey bar: all 26,136,888 MAUDE reports. Event type is the filer's classification and is not verified by FDA.

Device problems coded

Device problem (FDA code)ReportsShare
Therapeutic or diagnostic output failure2210.2%
Insufficient device problem information177.9%
Output problem125.6%
Device dislodged or dislocated52.3%
Expulsion52.3%
Migrationthe device moved from where it was placed41.9%
Failure to deliver shock/stimulation31.4%
Circuit failure20.9%
Impedance problem20.9%
Migration or expulsion of device20.9%
Noise, audible20.9%
Unexpected therapeutic results20.9%
Application program problem10.5%
Extrusion10.5%
Low impedance10.5%
Patient-device incompatibilitythe device did not suit the patient10.5%
Positioning failure10.5%
Positioning problem10.5%

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
Appropriate clinical signs, symptoms and conditions term/code not available7233.3%
Hearing impairment5826.9%
Painpain, site not specified94.2%
Head injurya head injury73.2%
Bacterial infectiona bacterial infection41.9%
Tissue breakdown41.9%
Undesired nerve stimulation31.4%
Discomfortdiscomfort20.9%
Tinnitusringing in the ears20.9%
Dizzinesslight-headedness or unsteadiness10.5%
Headachehead pain10.5%
Implant pain10.5%
Medical device site infectioninfection at the device site10.5%
Necrosisdeath of tissue10.5%
Necrosis of flap tissue10.5%

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

In context

MeasureNucleus Hybrid L24All MAUDE reports
Reports21626,136,888
Share of that pool—0%
Classified as death, per 1,000 reports09
Classified as injury96.3%36.2%
Classified as malfunction3.7%62.3%
Filed by the manufacturer65.3%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."

Questions about Nucleus Hybrid L24 reports

How many FDA reports name Nucleus Hybrid L24?

216 medical device reports in the openFDA MAUDE release of 28 Sep 2026, covering reports received through August 2026; 22 in the latest 12 months.

What kinds of events are reported?

injury (96.3%) and malfunction (3.7%). "Event type" is how the report was classified when filed: death, injury, malfunction or other.

What device problems are coded?

therapeutic or diagnostic output failure (10.2%), insufficient device problem information (7.9%), output problem (5.6%), device dislodged or dislocated (2.3%) and expulsion (2.3%). These are FDA's device problem codes as entered on the report.

Who files these reports?

manufacturer reports (65.3%) and distributor reports (34.7%). Manufacturers and user facilities are required to report; voluntary reports come from health professionals and the public.

Do these reports show that Nucleus Hybrid L24 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.