Reported Reactions

Devices › Hearing aid, bone conduction, implanted

Device brand name · Cochlear baha connect system

BIA400 Implant 4mm w Abutment 10mm: medical device reports filed with FDA

833 reports name it, 2016–2026. Manufacturer given most often on reports: Cochlear Bone Anchored Solutions. Product code MAH.

833
device reports naming the brand
0% of all MAUDE reports · about 84 a year
68
reports, 12 months to August 2026
65 in the 12 months before
0%
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 833 reports that name the brand "BIA400 Implant 4mm w Abutment 10mm" (cochlear baha connect system), received between August 2016 and August 2026; the manufacturer given most often on reports is Cochlear Bone Anchored Solutions. Spellings of one product vary from report to report.

68 reports arrived in the 12 months to August 2026, close to the 65 of 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 (100%); 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 patient device interaction problem (20.4%), loss of osseointegration (19.1%) and insufficient device problem information (1.9%). The patient problems coded most often are skin infection, pain and inadequate osseointegration. 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

0612Sep 2021: 5Oct 2021: 3Nov 2021: 6Dec 2021: 52022Jan 2022: 12Feb 2022: 7Mar 2022: 3Apr 2022: 3May 2022: 6Jun 2022: 4Jul 2022: 2Aug 2022: 10Sep 2022: 2Oct 2022: 5Nov 2022: 5Dec 2022: 32023Jan 2023: 3Feb 2023: 4Mar 2023: 5Apr 2023: 5May 2023: 4Jun 2023: 3Jul 2023: 6Aug 2023: 6Sep 2023: 1Oct 2023: 8Nov 2023: 0Dec 2023: 92024Jan 2024: 4Feb 2024: 2Mar 2024: 2Apr 2024: 1May 2024: 1Jun 2024: 4Jul 2024: 0Aug 2024: 3Sep 2024: 0Oct 2024: 4Nov 2024: 5Dec 2024: 22025Jan 2025: 12Feb 2025: 5Mar 2025: 6Apr 2025: 6May 2025: 11Jun 2025: 4Jul 2025: 3Aug 2025: 7Sep 2025: 7Oct 2025: 4Nov 2025: 11Dec 2025: 52026Jan 2026: 1Feb 2026: 4Mar 2026: 12Apr 2026: 7May 2026: 10Jun 2026: 2Jul 2026: 3Aug 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

0641282016: 2520162017: 942018: 9120182019: 1142020: 12820202021: 1152022: 6220222023: 542024: 2820242025: 812026: 412026

Event type and report source

Event type, as classified on the report

Death0%0
Injury100%833
Malfunction0%0
Other0%0
Not given0%0

Who filed the report

Manufacturer report69.9%582
Voluntary report0%0
User facility report0%0
Distributor report30.1%251
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
Patient device interaction problem17020.4%28%
Loss of osseointegration15919.1%13.6%
Insufficient device problem information161.9%2%
Failure to osseointegrate131.6%8.3%
Osseointegration problem70.8%0.8%
Inadequacy of device shape and/or size40.5%0.5%
Unexpected therapeutic results30.4%0.1%
Output problem20.2%0.1%
Patient-device incompatibilitythe device did not suit the patient20.2%0.2%
Therapeutic or diagnostic output failure20.2%0.3%
Loosening of implant not related to bone-ingrowth10.1%1.7%

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
Skin infection12114.5%
Painpain, site not specified9010.8%
Inadequate osseointegration809.6%
Bacterial infectiona bacterial infection789.4%
Host-tissue reaction607.2%
Appropriate clinical signs, symptoms and conditions term/code not available506%
Impaired healingslow healing495.9%
Fluid discharge273.2%
Skin inflammation/ irritation263.1%
Cellulitisa skin infection253%
Inflammationinflammation232.8%
Skin irritationirritated skin202.4%
Head injurya head injury141.7%
Discomfortdiscomfort111.3%
Swelling/ edema101.2%

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

In context

MeasureBIA400 Implant 4mm w Abutment 10mmProduct code MAHAll MAUDE reports
Reports8336,70826,136,888
Share of that pool—12.4%0%
Classified as death, per 1,000 reports009
Classified as injury100%96%36.2%
Classified as malfunction0%0.5%62.3%
Filed by the manufacturer69.9%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%
Ponto799420%
BIA400 Implant 4mm w Abutment 12mm673350%
BIA400 Implant 4mm w Abutment 8mm502330%
BA400 Abutment 10mm419180%
BA400 Abutment 12mm321210%
Ba400 Abutment 8mm31270%
BIA400 Implant 4mm w Abutment 14mm205250%
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 10mm reports

How many FDA reports name BIA400 Implant 4mm w Abutment 10mm?

833 medical device reports in the openFDA MAUDE release of 28 Sep 2026, covering reports received through August 2026; 68 in the latest 12 months.

What kinds of events are reported?

injury (100%). "Event type" is how the report was classified when filed: death, injury, malfunction or other.

What device problems are coded?

patient device interaction problem (20.4%), loss of osseointegration (19.1%), insufficient device problem information (1.9%), failure to osseointegrate (1.6%) and osseointegration problem (0.8%). These are FDA's device problem codes as entered on the report.

Who files these reports?

manufacturer reports (69.9%) and distributor reports (30.1%). 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 10mm 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.