Devices › Replacement heart-valve
Device brand name · Replacement heart-valve
Mosaic: medical device reports filed with FDA
2,216 reports name it, 2008–2026. Manufacturer given most often on reports: Medtronic Heart Valves Division. Product code DYE.
- 2,216
- device reports naming the brand
- 0% of all MAUDE reports · about 120 a year
- 131
- reports, 12 months to August 2026
- 163 in the 12 months before
- 3%
- classified as malfunction
- 3.5% across the product code
- 0.5%
- classified as death, as reported
- 12 reports · not verified by FDA
FDA's MAUDE database holds 2,216 reports that name the brand "Mosaic" (replacement heart-valve), received between January 2008 and August 2026; the manufacturer given most often on reports is Medtronic Heart Valves Division. Spellings of one product vary from report to report.
131 reports arrived in the 12 months to August 2026, down 20% from 163 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 (96.4%), malfunction (3%) and death (0.5%); across all replacement heart-valve reports (product code DYE) death is recorded in 3.6% and malfunction in 3.5%. Event type is the reporter's classification of the report, not a verified outcome.
The device problems coded most often are insufficient device problem information (67.8%), gradient increase (17.1%) and intravalvular regurgitation (10%). The patient problems coded most often are aortic valve stenosis, aortic valve insufficiency/ regurgitation and aortic insufficiency. 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 37,240 reports carrying product code DYE. 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 |
|---|---|---|---|
| Insufficient device problem information | 1,503 | 67.8% | 38.8% |
| Gradient increase | 378 | 17.1% | 16.5% |
| Intravalvular regurgitation | 221 | 10% | 3.2% |
| Device stenosis | 200 | 9% | 7.1% |
| Calcified | 87 | 3.9% | 14.1% |
| Patient device interaction problem | 73 | 3.3% | 3.5% |
| Material split, cut or torn | 35 | 1.6% | 0.7% |
| Incomplete coaptation | 28 | 1.3% | 4.7% |
| Perivalvular leak | 27 | 1.2% | 4.2% |
| Degraded | 24 | 1.1% | 12.8% |
| Occlusion within devicethe device blocked | 15 | 0.7% | 0.1% |
| Inadequacy of device shape and/or size | 13 | 0.6% | 1% |
| Device operates differently than expectedthe device behaved unexpectedly | 10 | 0.5% | 0.1% |
| Structural problem | 8 | 0.4% | 0.8% |
| Thickening of material | 8 | 0.4% | 0.4% |
| Material too rigid or stiff | 5 | 0.2% | 0.1% |
| Torn material | 5 | 0.2% | 0.3% |
| Human-device interface problem | 4 | 0.2% | 0% |
| Material separation | 4 | 0.2% | 0.1% |
| Hole in material | 3 | 0.1% | 0.1% |
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 |
|---|---|---|
| Aortic valve stenosis | 1,059 | 47.8% |
| Aortic valve insufficiency/ regurgitation | 579 | 26.1% |
| Aortic insufficiency | 219 | 9.9% |
| Aortic regurgitation | 152 | 6.9% |
| Calcium deposits/calcification | 91 | 4.1% |
| Dyspneashortness of breath | 38 | 1.7% |
| Cusp tear | 36 | 1.6% |
| Non specific ekg/ECG changes | 35 | 1.6% |
| Corneal pannus | 28 | 1.3% |
| Pulmonary valve stenosis | 22 | 1% |
| Stenosis | 20 | 0.9% |
| Endocarditis | 16 | 0.7% |
| Heart block | 15 | 0.7% |
| Heart failure/congestive heart failure | 13 | 0.6% |
| Thrombosis/thrombus | 13 | 0.6% |
Patient problem codes are present mainly in reports filed since 2019 and are often blank.
In context
| Measure | Mosaic | Product code DYE | All MAUDE reports |
|---|---|---|---|
| Reports | 2,216 | 37,240 | 26,136,888 |
| Share of that pool | — | 6% | 0% |
| Classified as death, per 1,000 reports | 5 | 36 | 9 |
| Classified as injury | 96.4% | 92.7% | 36.2% |
| Classified as malfunction | 3% | 3.5% | 62.3% |
| Filed by the manufacturer | 99.5% | 99.2% | 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 DYE
| Brand | Reports | Latest 12 months | Classified as death |
|---|---|---|---|
| Carpentier-Edwards PERIMOUNT Magna Ease Pericardial Bioprosthesis | 8,192 | 495 | 2.6% |
| Carpentier-Edwards PERIMOUNT Magna Mitral Ease Pericardial Bioprosthesis | 3,903 | 233 | 1% |
| Carpentier-Edwards Perimount Magna Pericardial Bioprosthesis | 3,518 | 53 | 7.7% |
| Carpentier-Edwards Perimount Rsr Pericardial Bioprosthesis | 3,288 | 13 | 3.3% |
| Mosaic Aortic Bioprosthetic Heart Valve | 3,406 | 405 | 2.8% |
| Carpentier-Edwards PERIMOUNT Plus Pericardial Bioprosthesis | 2,878 | 18 | 8.7% |
| Carpentier-Edwards Perimount Theon Pericardial Bioprosthesis | 1,643 | 46 | 3.9% |
| Carpentier-Edwards Perimount Aortic Pericardial Bioprosthesis | 864 | 7 | 7.1% |
| Carpentier-Edwards Perimount Magna Mitral Ease Pericardial Bioprostheses | 824 | 0 | 3.8% |
| Carpentier-Edwards Perimount Magna Mitral Pericardial Bioprosthesis | 808 | 1 | 12.9% |
| Mosaic Mitral Bioprosthetic Heart Valve | 1,534 | 154 | 6.4% |
| Ni | 32,939 | 1,587 | 1.8% |
| Carpentier-Edwards Perimount Magna Aortic Bioprosthesis | 1,324 | 11 | 27.1% |
| Carpentier-Edwards Bioprosthesis | 1,055 | 3 | 5% |
| Mosaic Porcine Heart Valve | 311 | 11 | 0.6% |
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 Mosaic reports
How many FDA reports name Mosaic?
2,216 medical device reports in the openFDA MAUDE release of 28 Sep 2026, covering reports received through August 2026; 131 in the latest 12 months.
What kinds of events are reported?
injury (96.4%), malfunction (3%) and death (0.5%). "Event type" is how the report was classified when filed: death, injury, malfunction or other.
What device problems are coded?
insufficient device problem information (67.8%), gradient increase (17.1%), intravalvular regurgitation (10%), device stenosis (9%) and calcified (3.9%). These are FDA's device problem codes as entered on the report.
Who files these reports?
manufacturer reports (99.5%) and voluntary reports (0.1%). Manufacturers and user facilities are required to report; voluntary reports come from health professionals and the public.
Do these reports show that Mosaic 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.