Reported Reactions

Devices › Stimulator, hypoglossal nerve, implanted, apnea

Device brand name · Inspire model 4340 respiratory sensing lead

Inspire Model 4340 Respiratory Sensing Lead: medical device reports filed with FDA

272 reports name it, 2020–2026. Manufacturer given most often on reports: Inspire Medical Systems. Product code MNQ.

272
device reports naming the brand
0% of all MAUDE reports · about 42 a year
36
reports, 12 months to August 2026
47 in the 12 months before
29.8%
classified as malfunction
4.5% across the product code
0%
classified as death, as reported
0 reports · not verified by FDA

FDA's MAUDE database holds 272 reports that name the brand "Inspire Model 4340 Respiratory Sensing Lead" (inspire model 4340 respiratory sensing lead), received between January 2020 and August 2026; the manufacturer given most often on reports is Inspire Medical Systems. Spellings of one product vary from report to report.

36 reports arrived in the 12 months to August 2026, down 23% from 47 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 (70.2%) and malfunction (29.8%); across all stimulator, hypoglossal nerve, implanted, apnea reports (product code MNQ) death is recorded in 0.1% and malfunction in 4.5%. Event type is the reporter's classification of the report, not a verified outcome.

The device problems coded most often are device sensing problem (36.4%), migration (9.9%) and malposition of device (4.8%). The patient problems coded most often are pneumothorax, pain and foreign body in patient. 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

0713Sep 2021: 2Oct 2021: 12Nov 2021: 4Dec 2021: 02022Jan 2022: 5Feb 2022: 0Mar 2022: 4Apr 2022: 2May 2022: 5Jun 2022: 2Jul 2022: 0Aug 2022: 2Sep 2022: 2Oct 2022: 2Nov 2022: 6Dec 2022: 82023Jan 2023: 3Feb 2023: 1Mar 2023: 3Apr 2023: 3May 2023: 2Jun 2023: 2Jul 2023: 0Aug 2023: 5Sep 2023: 3Oct 2023: 3Nov 2023: 5Dec 2023: 32024Jan 2024: 4Feb 2024: 4Mar 2024: 5Apr 2024: 13May 2024: 2Jun 2024: 6Jul 2024: 4Aug 2024: 5Sep 2024: 5Oct 2024: 3Nov 2024: 3Dec 2024: 62025Jan 2025: 4Feb 2025: 2Mar 2025: 6Apr 2025: 1May 2025: 7Jun 2025: 5Jul 2025: 3Aug 2025: 2Sep 2025: 2Oct 2025: 5Nov 2025: 2Dec 2025: 22026Jan 2026: 5Feb 2026: 3Mar 2026: 3Apr 2026: 6May 2026: 4Jun 2026: 1Jul 2026: 0Aug 2026: 3

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

030602020: 1920202021: 5620212022: 3820222023: 3320232024: 6020242025: 4120252026: 252026

Event type and report source

Event type, as classified on the report

Death0%0
Injury70.2%191
Malfunction29.8%81
Other0%0
Not given0%0

Who filed the report

Manufacturer report100%272
Voluntary report0%0
User facility report0%0
Distributor report0%0
Not given0%0

Grey bar: all 3,571 reports carrying product code MNQ. Event type is the filer's classification and is not verified by FDA.

Device problems coded

Device problem (FDA code)ReportsShareShare across product code
Device sensing problem9936.4%3.3%
Migrationthe device moved from where it was placed279.9%6%
Malposition of device134.8%1%
Detachment of device or device componentpart of the device came off114%0.5%
Migration or expulsion of device114%4.6%
Material twisted/bent62.2%0.5%
Positioning problem62.2%0.3%
Improper or incorrect procedure or method31.1%0.3%
Impedance problem20.7%0.2%
Material split, cut or torn20.7%0.2%
Corrodedthe device corroded10.4%0%
Device dislodged or dislocated10.4%0.2%
Material puncture/hole10.4%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
Pneumothoraxa collapsed lung7126.1%
Painpain, site not specified5620.6%
Foreign body in patientpart of a device left in the patient93.3%
Erosion82.9%
Twiddlers syndrome51.8%
Bacterial infectiona bacterial infection41.5%
Dyspneashortness of breath41.5%
Wound dehiscencea wound reopened41.5%
Implant pain31.1%
Coughcough20.7%
Device embedded in tissue or plaque20.7%
Seromaa collection of fluid under the skin20.7%
Abscessa collection of pus10.4%
Back painback pain10.4%
Burning sensationa burning feeling10.4%

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

In context

MeasureInspire Model 4340 Respiratory Sensing LeadProduct code MNQAll MAUDE reports
Reports2723,57126,136,888
Share of that pool—7.6%0%
Classified as death, per 1,000 reports019
Classified as injury70.2%95.3%36.2%
Classified as malfunction29.8%4.5%62.3%
Filed by the manufacturer100%95%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 MNQ

BrandReportsLatest 12 monthsClassified as death
Inspire Model 3028 IPG1,4372980.3%
Inspire Model 4063 Stimulation Lead1,3134260%
Inspire V IPG Model 31501661630%
Dexcom G71,3945830.1%

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 Inspire Model 4340 Respiratory Sensing Lead reports

How many FDA reports name Inspire Model 4340 Respiratory Sensing Lead?

272 medical device reports in the openFDA MAUDE release of 28 Sep 2026, covering reports received through August 2026; 36 in the latest 12 months.

What kinds of events are reported?

injury (70.2%) and malfunction (29.8%). "Event type" is how the report was classified when filed: death, injury, malfunction or other.

What device problems are coded?

device sensing problem (36.4%), migration (9.9%), malposition of device (4.8%), detachment of device or device component (4%) and migration or expulsion of device (4%). 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 Inspire Model 4340 Respiratory Sensing Lead 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.