Devices › Heart-valve, mechanical
Device brand name · Rotatable heart valve
Sjm Masters Series Mechanical Heart Valve: medical device reports filed with FDA
259 reports name it, 2004–2022. Manufacturer given most often on reports: St Jude Medical Puerto Rico. Product code LWQ.
- 259
- device reports naming the brand
- 0% of all MAUDE reports · about 12 a year
- 0
- reports, 12 months to August 2026
- 0 in the 12 months before
- 2.7%
- classified as malfunction
- 10.3% across the product code
- 12.4%
- classified as death, as reported
- 32 reports · not verified by FDA
FDA's MAUDE database holds 259 reports that name the brand "Sjm Masters Series Mechanical Heart Valve" (rotatable heart valve), received between April 2004 and February 2022; the manufacturer given most often on reports is St Jude Medical Puerto Rico. Spellings of one product vary from report to report.
0 reports arrived in the 12 months to August 2026, and none 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 (83.4%), death (12.4%) and malfunction (2.7%); across all heart-valve, mechanical reports (product code LWQ) death is recorded in 12.7% and malfunction in 10.3%. Event type is the reporter's classification of the report, not a verified outcome.
The device problems coded most often are obstruction of flow (10.8%), insufficient device problem information (9.7%) and perivalvular leak (5%). The patient problems coded most often are death, thrombus and dyspnea. 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 7,097 reports carrying product code LWQ. 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 |
|---|---|---|---|
| Obstruction of flow | 28 | 10.8% | 3.1% |
| Insufficient device problem information | 25 | 9.7% | 14.4% |
| Perivalvular leak | 13 | 5% | 4.8% |
| Explanted | 12 | 4.6% | 24.9% |
| Gradient increase | 12 | 4.6% | 2.3% |
| Incomplete coaptation | 12 | 4.6% | 5.2% |
| Device operates differently than expectedthe device behaved unexpectedly | 11 | 4.2% | 1.5% |
| Occlusion within devicethe device blocked | 11 | 4.2% | 1.3% |
| Biocompatibility | 10 | 3.9% | 1.1% |
| Fracturea broken bone | 7 | 2.7% | 3.6% |
| Inadequacy of device shape and/or size | 7 | 2.7% | 2.7% |
| Material separation | 7 | 2.7% | 1.1% |
| Replace | 7 | 2.7% | 18% |
| Leak/splashthe device leaked | 6 | 2.3% | 2.1% |
| Sticking | 5 | 1.9% | 2.2% |
| Device dislodged or dislocated | 4 | 1.5% | 1% |
| Improper or incorrect procedure or method | 4 | 1.5% | 0.6% |
| Detachment of device component | 3 | 1.2% | 0.5% |
| Fluid/blood leak | 3 | 1.2% | 0.1% |
| Mechanical jam | 3 | 1.2% | 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) | Reports | Share |
|---|---|---|
| Deaththe patient died; cause not stated by this term | 32 | 12.4% |
| Thrombus | 32 | 12.4% |
| Dyspneashortness of breath | 16 | 6.2% |
| Endocarditis | 16 | 6.2% |
| Mitral regurgitation | 10 | 3.9% |
| Thrombosis | 9 | 3.5% |
| Hospitalization required | 8 | 3.1% |
| Mitral insufficiency | 7 | 2.7% |
| Aortic valve stenosis | 6 | 2.3% |
| Surgical procedure, repeated | 6 | 2.3% |
| Congestive heart failure | 5 | 1.9% |
| Corneal pannus | 5 | 1.9% |
| Stroke/cva | 5 | 1.9% |
| Aortic regurgitation | 4 | 1.5% |
| Cardiogenic shockshock from the heart failing to pump | 4 | 1.5% |
Patient problem codes are present mainly in reports filed since 2019 and are often blank.
In context
| Measure | Sjm Masters Series Mechanical Heart Valve | Product code LWQ | All MAUDE reports |
|---|---|---|---|
| Reports | 259 | 7,097 | 26,136,888 |
| Share of that pool | — | 3.6% | 0% |
| Classified as death, per 1,000 reports | 124 | 127 | 9 |
| Classified as injury | 83.4% | 75.7% | 36.2% |
| Classified as malfunction | 2.7% | 10.3% | 62.3% |
| Filed by the manufacturer | 98.5% | 92.6% | 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 LWQ
| Brand | Reports | Latest 12 months | Classified as death |
|---|---|---|---|
| Aortic Ap | 409 | 44 | 2.7% |
| Standard Cuff | 329 | 0 | 10.6% |
| Regent Heart Valve with Flex Cuff | 268 | 65 | 5.2% |
| Sjm Regent Heart Valve W/Flex Cuff | 246 | 0 | 13% |
| Open Pivot Mechanical Heart Valve | 222 | 12 | 5% |
| Medtronic Hall Prosthetic Heart Valve | 207 | 0 | 19.8% |
| Sjm Mechanical Heart Valve | 178 | 0 | 7.9% |
| Bjork-Shiley 60 Degree Convexo-Concave | 165 | 0 | 27.3% |
| Trifecta | 227 | 115 | 8.8% |
| Mosaic Aortic Bioprosthetic Heart Valve | 3,406 | 405 | 2.8% |
| Trifecta Stented Tissue Valve | 290 | 0 | 7.9% |
| Carpentier-Edwards Perimount Pericardial Bioprosthesis | 978 | 1 | 10% |
| Shiley | 12,236 | 1,513 | 1.1% |
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 Sjm Masters Series Mechanical Heart Valve reports
How many FDA reports name Sjm Masters Series Mechanical Heart Valve?
259 medical device reports in the openFDA MAUDE release of 28 Sep 2026, covering reports received through August 2026; 0 in the latest 12 months.
What kinds of events are reported?
injury (83.4%), death (12.4%) and malfunction (2.7%). "Event type" is how the report was classified when filed: death, injury, malfunction or other.
What device problems are coded?
obstruction of flow (10.8%), insufficient device problem information (9.7%), perivalvular leak (5%), explanted (4.6%) and gradient increase (4.6%). These are FDA's device problem codes as entered on the report.
Who files these reports?
manufacturer reports (98.5%) and voluntary reports (0.8%). Manufacturers and user facilities are required to report; voluntary reports come from health professionals and the public.
Do these reports show that Sjm Masters Series Mechanical Heart Valve 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.