Devices › Hearing aid, bone conduction, implanted
Device brand name · Cochlear baha connect system
Ba400 Abutment 8mm: medical device reports filed with FDA
312 reports name it, 2016–2025. Manufacturer given most often on reports: Cochlear Bone Anchored Solutions. Product code MAH.
- 312
- device reports naming the brand
- 0% of all MAUDE reports · about 32 a year
- 7
- reports, 12 months to August 2026
- 24 in the 12 months before
- 0.3%
- classified as malfunction
- 0.5% across the product code
- 0%
- classified as death, as reported
- 0 reports · not verified by FDA
312 medical device reports received by FDA name the brand "Ba400 Abutment 8mm" (cochlear baha connect system); the manufacturer given most often on reports is Cochlear Bone Anchored Solutions; received from November 2016 to December 2025. Brand names are as the reporter or manufacturer wrote them, so one product can appear under several spellings.
7 reports arrived in the 12 months to August 2026, down 71% from 24 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 (99.4%) and malfunction (0.3%); 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 (41.7%), insufficient device problem information (1.9%) and inadequacy of device shape and/or size (1.3%). The patient problems coded most often are skin infection, impaired healing and host-tissue reaction. 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
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
Event type and report source
Event type, as classified on the report
Who filed the report
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) | Reports | Share | Share across product code |
|---|---|---|---|
| Patient device interaction problem | 130 | 41.7% | 28% |
| Insufficient device problem information | 6 | 1.9% | 2% |
| Inadequacy of device shape and/or size | 4 | 1.3% | 0.5% |
| Loss of osseointegration | 3 | 1% | 13.6% |
| Biocompatibility | 2 | 0.6% | 0.1% |
| Patient-device incompatibilitythe device did not suit the patient | 1 | 0.3% | 0.2% |
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) | Reports | Share |
|---|---|---|
| Skin infection | 76 | 24.4% |
| Impaired healingslow healing | 75 | 24% |
| Host-tissue reaction | 33 | 10.6% |
| Skin inflammation/ irritation | 25 | 8% |
| Painpain, site not specified | 23 | 7.4% |
| Bacterial infectiona bacterial infection | 18 | 5.8% |
| Appropriate clinical signs, symptoms and conditions term/code not available | 10 | 3.2% |
| Cellulitisa skin infection | 10 | 3.2% |
| Scar tissue | 9 | 2.9% |
| Inflammationinflammation | 7 | 2.2% |
| Post operative wound infection | 6 | 1.9% |
| Swelling/ edema | 5 | 1.6% |
| Wound dehiscencea wound reopened | 4 | 1.3% |
| Fluid discharge | 3 | 1% |
| Swellingswelling | 3 | 1% |
Patient problem codes are present mainly in reports filed since 2019 and are often blank.
In context
| Measure | Ba400 Abutment 8mm | Product code MAH | All MAUDE reports |
|---|---|---|---|
| Reports | 312 | 6,708 | 26,136,888 |
| Share of that pool | — | 4.7% | 0% |
| Classified as death, per 1,000 reports | 0 | 0 | 9 |
| Classified as injury | 99.4% | 96% | 36.2% |
| Classified as malfunction | 0.3% | 0.5% | 62.3% |
| Filed by the manufacturer | 67.9% | 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
| Brand | Reports | Latest 12 months | Classified as death |
|---|---|---|---|
| Asku | 4,752 | 210 | 1.1% |
| BIA400 Implant 4mm w Abutment 10mm | 833 | 68 | 0% |
| Ponto | 799 | 42 | 0% |
| BIA400 Implant 4mm w Abutment 12mm | 673 | 35 | 0% |
| BIA400 Implant 4mm w Abutment 8mm | 502 | 33 | 0% |
| BA400 Abutment 10mm | 419 | 18 | 0% |
| BA400 Abutment 12mm | 321 | 21 | 0% |
| BIA400 Implant 4mm w Abutment 14mm | 205 | 25 | 0% |
| Flange Fixture And Abutment | 2,920 | 0 | 0% |
| Vibrant Soundbridge | 1,265 | 82 | 0% |
| BIM400 Implant Magnet | 1,155 | 153 | 0% |
| Flange Fixture St 4mm W Baha Abutment | 197 | 9 | 0% |
| Bi300 Implant 3mm | 181 | 19 | 0% |
| BI300 Implant 4 mm | 314 | 28 | 0% |
| Bonebridge | 485 | 99 | 0% |
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 Ba400 Abutment 8mm reports
How many FDA reports name Ba400 Abutment 8mm?
312 medical device reports in the openFDA MAUDE release of 28 Sep 2026, covering reports received through August 2026; 7 in the latest 12 months.
What kinds of events are reported?
injury (99.4%) and malfunction (0.3%). "Event type" is how the report was classified when filed: death, injury, malfunction or other.
What device problems are coded?
patient device interaction problem (41.7%), insufficient device problem information (1.9%), inadequacy of device shape and/or size (1.3%), loss of osseointegration (1%) and biocompatibility (0.6%). These are FDA's device problem codes as entered on the report.
Who files these reports?
manufacturer reports (67.9%) and distributor reports (32.1%). Manufacturers and user facilities are required to report; voluntary reports come from health professionals and the public.
Do these reports show that Ba400 Abutment 8mm 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.