Reported Reactions

Devices › Hearing aid, bone conduction, implanted

Device brand name · Cochlear baha connect system

BIA400 Implant 4mm w Abutment 14mm: medical device reports filed with FDA

205 reports name it, 2017–2026. Manufacturer given most often on reports: Cochlear Bone Anchored Solutions. Product code MAH.

205
device reports naming the brand
0% of all MAUDE reports · about 22 a year
25
reports, 12 months to August 2026
28 in the 12 months before
0.5%
classified as malfunction
0.5% across the product code
0%
classified as death, as reported
0 reports · not verified by FDA

FDA's MAUDE database holds 205 reports that name the brand "BIA400 Implant 4mm w Abutment 14mm" (cochlear baha connect system), received between January 2017 and July 2026; the manufacturer given most often on reports is Cochlear Bone Anchored Solutions. Spellings of one product vary from report to report.

25 reports arrived in the 12 months to August 2026, down 11% from 28 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 (99.5%) and malfunction (0.5%); across all hearing aid, bone conduction, implanted reports (product code MAH) death is recorded in 0% and malfunction in 0.5%. Event type is the reporter's classification of the report, not a verified outcome.

The device problems coded most often are loss of osseointegration (27.3%), patient device interaction problem (22.4%) and failure to osseointegrate (2.9%). The patient problems coded most often are inadequate osseointegration, skin infection and appropriate clinical signs, symptoms and conditions term/code not available. 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

059Sep 2021: 0Oct 2021: 4Nov 2021: 0Dec 2021: 22022Jan 2022: 2Feb 2022: 4Mar 2022: 3Apr 2022: 0May 2022: 0Jun 2022: 2Jul 2022: 4Aug 2022: 0Sep 2022: 2Oct 2022: 0Nov 2022: 8Dec 2022: 22023Jan 2023: 0Feb 2023: 0Mar 2023: 2Apr 2023: 2May 2023: 0Jun 2023: 0Jul 2023: 2Aug 2023: 0Sep 2023: 0Oct 2023: 0Nov 2023: 0Dec 2023: 02024Jan 2024: 2Feb 2024: 0Mar 2024: 2Apr 2024: 0May 2024: 0Jun 2024: 0Jul 2024: 0Aug 2024: 2Sep 2024: 2Oct 2024: 2Nov 2024: 2Dec 2024: 22025Jan 2025: 0Feb 2025: 0Mar 2025: 4Apr 2025: 3May 2025: 9Jun 2025: 2Jul 2025: 0Aug 2025: 2Sep 2025: 0Oct 2025: 0Nov 2025: 6Dec 2025: 22026Jan 2026: 5Feb 2026: 4Mar 2026: 4Apr 2026: 0May 2026: 2Jun 2026: 0Jul 2026: 2Aug 2026: 0

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

017332017: 820172018: 2020182019: 2920192020: 3320202021: 2320212022: 2720222023: 620232024: 1420242025: 2820252026: 172026

Event type and report source

Event type, as classified on the report

Death0%0
Injury99.5%204
Malfunction0.5%1
Other0%0
Not given0%0

Who filed the report

Manufacturer report62.9%129
Voluntary report0%0
User facility report0%0
Distributor report37.1%76
Not given0%0

Grey bar: all 6,708 reports carrying product code MAH. Event type is the filer's classification and is not verified by FDA.

Device problems coded

Device problem (FDA code)ReportsShareShare across product code
Loss of osseointegration5627.3%13.6%
Patient device interaction problem4622.4%28%
Failure to osseointegrate62.9%8.3%
Therapeutic or diagnostic output failure52.4%0.3%
Detachment of device or device componentpart of the device came off42%0.5%
Insufficient device problem information42%2%
Loosening of implant not related to bone-ingrowth21%1.7%
Unexpected therapeutic results21%0.1%
Osseointegration problem10.5%0.8%

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
Inadequate osseointegration3115.1%
Skin infection3115.1%
Appropriate clinical signs, symptoms and conditions term/code not available2411.7%
Impaired healingslow healing157.3%
Painpain, site not specified136.3%
Bacterial infectiona bacterial infection104.9%
Host-tissue reaction104.9%
Fluid discharge94.4%
Hemorrhage/blood loss/bleeding62.9%
Head injurya head injury52.4%
Headachehead pain42%
Cellulitisa skin infection31.5%
Hearing impairment31.5%
Inflammationinflammation31.5%
Discomfortdiscomfort21%

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

In context

MeasureBIA400 Implant 4mm w Abutment 14mmProduct code MAHAll MAUDE reports
Reports2056,70826,136,888
Share of that pool—3.1%0%
Classified as death, per 1,000 reports009
Classified as injury99.5%96%36.2%
Classified as malfunction0.5%0.5%62.3%
Filed by the manufacturer62.9%72.4%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 MAH

BrandReportsLatest 12 monthsClassified as death
Asku4,7522101.1%
BIA400 Implant 4mm w Abutment 10mm833680%
Ponto799420%
BIA400 Implant 4mm w Abutment 12mm673350%
BIA400 Implant 4mm w Abutment 8mm502330%
BA400 Abutment 10mm419180%
BA400 Abutment 12mm321210%
Ba400 Abutment 8mm31270%
Flange Fixture And Abutment2,92000%
Vibrant Soundbridge1,265820%
BIM400 Implant Magnet1,1551530%
Flange Fixture St 4mm W Baha Abutment19790%
Bi300 Implant 3mm181190%
BI300 Implant 4 mm314280%
Bonebridge485990%

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 BIA400 Implant 4mm w Abutment 14mm reports

How many FDA reports name BIA400 Implant 4mm w Abutment 14mm?

205 medical device reports in the openFDA MAUDE release of 28 Sep 2026, covering reports received through August 2026; 25 in the latest 12 months.

What kinds of events are reported?

injury (99.5%) and malfunction (0.5%). "Event type" is how the report was classified when filed: death, injury, malfunction or other.

What device problems are coded?

loss of osseointegration (27.3%), patient device interaction problem (22.4%), failure to osseointegrate (2.9%), therapeutic or diagnostic output failure (2.4%) and detachment of device or device component (2%). These are FDA's device problem codes as entered on the report.

Who files these reports?

manufacturer reports (62.9%) and distributor reports (37.1%). Manufacturers and user facilities are required to report; voluntary reports come from health professionals and the public.

Do these reports show that BIA400 Implant 4mm w Abutment 14mm 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.