Reported Reactions

Devices › Stimulator, electrical, implanted, for parkinsonian symptoms

Device brand name · Stimulator electrical implanted for parkinsonian tremor

Vercise Genus: medical device reports filed with FDA

1,014 reports name it, 2021–2026. Manufacturer given most often on reports: Boston Scientific Neuromodulation. Product code NHL.

1,014
device reports naming the brand
0% of all MAUDE reports · about 193 a year
338
reports, 12 months to August 2026
236 in the 12 months before
17.2%
classified as malfunction
9.9% across the product code
2.4%
classified as death, as reported
24 reports · not verified by FDA

FDA's MAUDE database holds 1,014 reports that name the brand "Vercise Genus" (stimulator electrical implanted for parkinsonian tremor), received between April 2021 and August 2026; the manufacturer given most often on reports is Boston Scientific Neuromodulation. Spellings of one product vary from report to report.

338 reports arrived in the 12 months to August 2026, up 43% from 236 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 (80.5%), malfunction (17.2%) and death (2.4%); across all stimulator, electrical, implanted, for parkinsonian symptoms reports (product code NHL) death is recorded in 2.3% and malfunction in 9.9%. Event type is the reporter's classification of the report, not a verified outcome.

The device problems coded most often are unexpected therapeutic results (25.9%), battery problem (13.3%) and charging problem (7.2%). The patient problems coded most often are shaking/tremors, bacterial infection and discomfort. 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

01938Sep 2021: 7Oct 2021: 2Nov 2021: 3Dec 2021: 52022Jan 2022: 4Feb 2022: 7Mar 2022: 6Apr 2022: 8May 2022: 5Jun 2022: 5Jul 2022: 4Aug 2022: 11Sep 2022: 10Oct 2022: 2Nov 2022: 8Dec 2022: 42023Jan 2023: 2Feb 2023: 14Mar 2023: 9Apr 2023: 7May 2023: 10Jun 2023: 23Jul 2023: 14Aug 2023: 14Sep 2023: 15Oct 2023: 26Nov 2023: 37Dec 2023: 122024Jan 2024: 13Feb 2024: 18Mar 2024: 24Apr 2024: 24May 2024: 20Jun 2024: 23Jul 2024: 15Aug 2024: 17Sep 2024: 8Oct 2024: 35Nov 2024: 10Dec 2024: 242025Jan 2025: 7Feb 2025: 19Mar 2025: 19Apr 2025: 23May 2025: 16Jun 2025: 13Jul 2025: 32Aug 2025: 30Sep 2025: 33Oct 2025: 30Nov 2025: 24Dec 2025: 272026Jan 2026: 27Feb 2026: 19Mar 2026: 20Apr 2026: 28May 2026: 34Jun 2026: 23Jul 2026: 38Aug 2026: 35

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

01372732021: 2920212022: 7420222023: 18320232024: 23120242025: 27320252026: 2242026

Event type and report source

Event type, as classified on the report

Death2.4%24
Injury80.5%816
Malfunction17.2%174
Other0%0
Not given0%0

Who filed the report

Manufacturer report100%1,014
Voluntary report0%0
User facility report0%0
Distributor report0%0
Not given0%0

Grey bar: all 1,824 reports carrying product code NHL. Event type is the filer's classification and is not verified by FDA.

Device problems coded

Device problem (FDA code)ReportsShareShare across product code
Unexpected therapeutic results26325.9%18.3%
Battery problema problem with the battery13513.3%3.4%
Charging problem737.2%4.4%
Wireless communication problema wireless connection problem595.8%3.4%
Migrationthe device moved from where it was placed545.3%7.5%
High impedance494.8%8.3%
Intermittent energy output484.7%1.9%
Inappropriate/inadequate shock/stimulation414%2.3%
Inappropriate or unexpected reset403.9%1.1%
Premature discharge of battery343.4%1.6%
Off-label use191.9%0.9%
Overheating of device101%0.6%
Delayed charge time90.9%0.6%
Positioning problem70.7%0.4%
Device displays incorrect message50.5%0.3%
Nonstandard device50.5%0.5%
Power problem30.3%0.1%
Low impedance20.2%0.5%
Defective devicethe device was defective10.1%0.8%
Device contaminated during manufacture or shipping10.1%0%

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
Shaking/tremors13112.9%
Bacterial infectiona bacterial infection12312.1%
Discomfortdiscomfort777.6%
Swelling/ edema717%
Movement disorder696.8%
Undesired nerve stimulation575.6%
Erythemaskin redness484.7%
Painpain, site not specified484.7%
Purulent discharge303%
Fluid discharge262.6%
Speech disordera speech problem252.5%
Impaired healingslow healing232.3%
Implant pain232.3%
Erosion222.2%
Falla fall222.2%

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

In context

MeasureVercise GenusProduct code NHLAll MAUDE reports
Reports1,0141,82426,136,888
Share of that pool—55.6%0%
Classified as death, per 1,000 reports24239
Classified as injury80.5%87.7%36.2%
Classified as malfunction17.2%9.9%62.3%
Filed by the manufacturer100%97.3%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 NHL

BrandReportsLatest 12 monthsClassified as death
Vercise? Cartesia?9081322.4%
Vercise Gevia?355262.3%
Vercise274430.4%
Vercise Pc156151.3%
SureTek?151310%
Infinity 7 Implantable Pulse Generator1,2581470.5%
Infinity 5 Implantable Pulse Generator320220.6%
Dbs23902.9%

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 Vercise Genus reports

How many FDA reports name Vercise Genus?

1,014 medical device reports in the openFDA MAUDE release of 28 Sep 2026, covering reports received through August 2026; 338 in the latest 12 months.

What kinds of events are reported?

injury (80.5%), malfunction (17.2%) and death (2.4%). "Event type" is how the report was classified when filed: death, injury, malfunction or other.

What device problems are coded?

unexpected therapeutic results (25.9%), battery problem (13.3%), charging problem (7.2%), wireless communication problem (5.8%) and migration (5.3%). 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 Vercise Genus 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.