Skip to content

CG FUTURE™ 638BL34Recalls & reported problems

Medtronic, Inc. · BAND 638BL34 CG FUTURE ANULO 29L · Class 2 · Implant

Quick summary

This Medtronic CG Future annuloplasty band is a flexible ring used to repair the mitral valve in heart surgery. Most of the 51 reports describe the band being taken out and replaced during or shortly after surgery, sometimes because a suture buckle broke or the band popped off its holder, and patients were left with ongoing mitral valve leaking or regurgitation. There were 50 injuries and no deaths. No recalls name this device.

AI-generated from the FDA records on this page and checked automatically against the numbers below. Read the details before relying on it.

Adverse event reports
51
Deaths reported
0
Injuries reported
50
Recalls naming it
0

Summary

The FDA's MAUDE database contains 51 adverse event reports that list this exact device (DI 00643169793620), received between Aug 8, 2018 and Jun 16, 2026 — classified as 50 injuries, 1 malfunction.

The most frequently reported specific device problem is “Insufficient Device Problem Information” (37 reports).

Reports come from manufacturers, hospitals and patients and are not verified by the FDA. A report does not prove the device caused the event, and counts can't be used to compare devices or estimate failure rates. How this data works · Data updated Oct 13, 2026.

Reports received per month

Nov 2023: 1 reportsDec 2023: 0 reportsJan 2024: 1 reportsFeb 2024: 1 reportsMar 2024: 1 reportsApr 2024: 1 reportsMay 2024: 0 reportsJun 2024: 1 reportsJul 2024: 0 reportsAug 2024: 0 reportsSep 2024: 1 reportsOct 2024: 0 reportsNov 2024: 0 reportsDec 2024: 0 reportsJan 2025: 0 reportsFeb 2025: 0 reportsMar 2025: 0 reportsApr 2025: 0 reportsMay 2025: 1 reportsJun 2025: 0 reportsJul 2025: 1 reportsAug 2025: 0 reportsSep 2025: 0 reportsOct 2025: 1 reportsNov 2025: 2 reportsDec 2025: 0 reportsJan 2026: 4 reportsFeb 2026: 0 reportsMar 2026: 0 reportsApr 2026: 1 reportsMay 2026: 1 reportsJun 2026: 1 reportsJul 2026: 0 reportsAug 2026: 0 reportsSep 2026: 0 reportsOct 2026: 0 reports2024202520264
Last 36 months. The most recent month may be incomplete.

Most reported problems

Device problems

  • Insufficient Device Problem Information37
  • Adverse Event Without Identified Device or Use Problem18
  • Inadequacy of Device Shape and/or Size7
  • Intravalvular regurgitation6
  • Break2
  • Appropriate Device Problem Term/Code Not Available1
  • Material Separation1

Patient problems

  • Insufficient Information35
  • Mitral Valve Insufficiency/ Regurgitation11
  • No Information11
  • Mitral Regurgitation3
  • Calcium Deposits/Calcification1
  • Cardiac Arrest1
  • Mitral Insufficiency1
  • Mitral Valve Prolapse1

Recent adverse event reports

The 25 most recent of 51 reports, in the reporter's own words as published by the FDA.

  • InjuryJun 16, 2026Insufficient Device Problem Information; Intravalvular regurgitation

    MEDTRONIC RECEIVED INFORMATION THAT 12 DAYS POST IMPLANT OF THIS 34MM CG FUTURE ANNULOPLASTY HEART BAND, IT WAS EXPLANTED AND REPLACED WITH A 40MM SIMUFORM SR HEART RING. THE REASON FOR THE REPLACEMENT WAS NOT REPORTED. NO ADDITIONAL ADVERSE PATIENT EFFECTS WERE REPORTED.

    Patient problems: Insufficient Information; Mitral Valve Insufficiency/ Regurgitation; Obstruction/Occlusion

    MAUDE report 25515497 ↗
  • InjuryMay 21, 2026Adverse Event Without Identified Device or Use Problem

    IT WAS REPORTED THAT DURING THE IMPLANT OF THIS 34MM CG FUTURE ANNULOPLASTY BAND, IT WAS EXPLANTED AND REPLACED WITH AN UNKNOWN DEVICE. THE REASON FOR THE REPLACEMENT WAS NOT REPORTED. NO ADDITIONAL ADVERSE PATIENT EFFECTS WERE REPORTED

    Patient problems: Insufficient Information

    MAUDE report 25239735 ↗
  • MalfunctionApr 28, 2026Break; Material Separation

    IT WAS REPORTED THAT DURING THE IMPLANT PROCEDURE, A 34MM ANNULOPLASTY BAND WAS LOADED INTO THE HANDLE AND HANDED TO THE SURGEON. IT WAS REPORTED THAT AS THE SURGEON BEGAN PASSING THE SUTURES THROUGH THE ANNULOPLASTY BAND, AFTER A FEW PAIRS OF SUTURES, THE BAND 'POPPED' OFF THE DISPOSABLE PLASTIC PART OF THE IMPLANT AND THIS ADDED TIME TO THE OPERATION DUE TO THE INSTABILITY OF THE BAND. IT WAS STATED THAT THIS PLASTIC PART COVERS THE ORIFICE AREA AND IT IS ONLY FULLY DETACHED BY CUTTING SUTURES THAT HOLDS THE BAND. NO ADVERSE PATIENT EFFECTS WERE REPORTED.

    Patient problems: Insufficient Information

    MAUDE report 25017547 ↗
  • InjuryJan 9, 2026Adverse Event Without Identified Device or Use Problem

    IT WAS REPORTED THAT 6 DAYS POST IMPLANT OF THIS 34MM MITRAL ANNULOPLASTY BAND, IT WAS EXPLANTED AND REPLACED WITH A 31MM MITRAL BIO PROSTHETIC VALVE. THE REASON FOR THE REPLACEMENT WAS NOT REPORTED. NO ADDITIONAL ADVERSE PATIENT EFFECTS WERE REPORTED.

    Patient problems: Insufficient Information

    MAUDE report 24018240 ↗
  • InjuryJan 6, 2026Insufficient Device Problem Information; Intravalvular regurgitation

    MEDTRONIC RECEIVED INFORMATION THAT DURING THE IMPLANT OF THIS 34MM CG FUTURE BAND, IT WAS EXPLANTED AND REPLACED WITH AN UNKNOWN PRODUCT. THE REASON FOR THE REPLACEMENT WAS NOT REPORTED. NO ADDITIONAL ADVERSE PATIENT EFFECTS WERE REPORTED.

    Patient problems: Calcium Deposits/Calcification; Insufficient Information; Mitral Valve Insufficiency/ Regurgitation

    MAUDE report 23973172 ↗
  • InjuryJan 6, 2026Adverse Event Without Identified Device or Use Problem

    MEDTRONIC RECEIVED INFORMATION THAT DURING THE IMPLANT OF THIS 34MM MITRAL ANNULOPLASTY BAND, IT WAS EXPLANTED AND REPLACED WITH A 32MM MITRAL ANNULOPLASTY BAND OF THE SAME MODEL. THE REASON FOR THE REPLACEMENT WAS NOT REPORTED. NO ADDITIONAL ADVERSE PATIENT EFFECTS WERE REPORTED.

    Patient problems: Insufficient Information

    MAUDE report 23973148 ↗
  • InjuryJan 2, 2026Break

    MEDTRONIC RECEIVED INFORMATION THAT DURING THE IMPLANT OF THIS 34MM MITRAL ANNULOPLASTY BAND, IT WAS EXPLANTED AND REPLACED WITH AN 34MM ANNULOPLASTY BAND OF THE SAME MODEL. THE REASON FOR THE REPLACEMENT WAS REPORTED AS THE SUTURE BUCKLE HAD BROKEN, WHICH AFFECTED THE IMPLANT OF THE LOWER VALVE RING. NO ADDITIONAL ADVERSE PATIENT EFFECTS WERE REPORTED.

    Patient problems: Insufficient Information

    MAUDE report 23947947 ↗
  • InjuryNov 25, 2025Adverse Event Without Identified Device or Use Problem; Adverse Event Without Identified Device or Use Problem

    ADDITIONAL INFORMATION RECEIVED REPORTED THAT THE CG FUTURE DEVICE WAS REPLACED WITH A MOSAIC MITRAL VALVE. THE REASON FOR THE REPLACEMENT WAS NOT REPORTED. IT WAS ALSO REPORTED, ¿THE BAND WAS NOT THE ISSUE WITH THE FAILED REPAIR.¿. NO ADDITIONAL ADVERSE PATIENT EFFECTS WERE REPORTED.

    Patient problems: Insufficient Information

    MAUDE report 23643103 ↗
  • InjuryNov 24, 2025Adverse Event Without Identified Device or Use Problem; Insufficient Device Problem Information; Intravalvular regurgitation; Adverse Event Without Identified Device or Use Problem; Insufficient Device Problem Information; Intravalvular regurgitation

    IT WAS REPORTED THAT 8 MONTHS POST IMPLANT OF THIS 34MM MITRAL ANNULOPLASTY BAND, IT WAS EXPLANTED AND REPLACED WITH A 32MM MITRAL A NNULOPLASTY RING. THE REASON FOR THE REPLACEMENT WAS NOT REPORTED. NO ADDITIONAL ADVERSE PATIENT EFFECTS WERE REPORTED.

    Patient problems: Insufficient Information; Mitral Valve Insufficiency/ Regurgitation

    MAUDE report 23639812 ↗
  • InjuryOct 23, 2025Intravalvular regurgitation; Intravalvular regurgitation

    ADDITIONAL INFORMATION WAS RECEIVED THAT REPORTED THE ANNULOPLASTY BAND WAS FULLY SUTURED AND TESTED PRIOR TO REMOVAL. NO ADDITIONAL ADVERSE PATIENT EFFECTS WERE REPORTED.

    Patient problems: Mitral Valve Insufficiency/ Regurgitation

    MAUDE report 23367694 ↗
  • InjuryJul 1, 2025Insufficient Device Problem Information; Insufficient Device Problem Information

    MEDTRONIC RECEIVED INFORMATION THAT DURING THE IMPLANT OF THIS 34MM MITRAL ANNULOPLASTY BAND, IT WAS EXPLANTED AND REPLACED WITH AN UNKNOWN PRODUCT. THE REASON FOR THE REPLACEMENT WAS NOT REPORTED. NO ADDITIONAL ADVERSE PATIENT EFFECTS WERE REPORTED.

    Patient problems: Insufficient Information

    MAUDE report 22373768 ↗
  • InjuryMay 13, 2025Insufficient Device Problem Information; Insufficient Device Problem Information

    IT WAS REPORTED THAT POST IMPLANT OF THIS 34MM CG FUTURE MITRAL BAND, IT WAS EXPLANTED AND REPLACED WITH AN UNKNOWN DEVICE. THE REASON FOR THE REPLACEMENT WAS NOT REPORTED. NO ADDITIONAL ADVERSE PATIENT EFFECTS WERE REPORTED.

    Patient problems: Insufficient Information

    MAUDE report 22010983 ↗
  • InjurySep 11, 2024Intravalvular regurgitation; Intravalvular regurgitation

    MEDTRONIC RECEIVED INFORMATION THAT DURING THE IMPLANT OF THIS 34MM MITRAL ANNULOPLASTY BAND, IT WAS EXPLANTED AND REPLACED WITH AN UNKNOWN PRODUCT. THE REASON FOR THE REPLACEMENT WAS REPORTED AS MODERATE REGURGITATION. NO ADDITIONAL ADVERSE PATIENT EFFECTS WERE REPORTED.

    Patient problems: Mitral Valve Insufficiency/ Regurgitation

    MAUDE report 20188576 ↗
  • InjuryJun 14, 2024Intravalvular regurgitation; Intravalvular regurgitation

    MEDTRONIC RECEIVED INFORMATION THAT 8 DAYS POST IMPLANT OF THIS 34MM MITRAL ANNULOPLASTY BAND, A WORSENING MITRAL LEAK WAS REPORTED. IT WAS STATED THAT A STRONG MILD MITRAL LEAK IN ZONE 3 WITH A MEAN GRADIENT OF 3.1 MMHG DUE TO EXCESS RESTRICTION OF THE POSTERIOR LEAFLET WAS OBSERVED. IT WAS REPORTED THAT MITRAL PLASTY WAS PERFORMED THE FOLLOWING DAY AND A FOLLOW-UP TRANSESOPHAGEAL ECHOCARDIOGRAM (TEE) AT THE END OF THE PROCEDURE SHOWED NO MITRAL LEAK. NO ADDITIONAL ADVERSE PATIENT EFFECTS WERE REPORTED.

    Patient problems: Mitral Valve Insufficiency/ Regurgitation

    MAUDE report 19535921 ↗
  • InjuryApr 4, 2024Insufficient Device Problem Information; Insufficient Device Problem Information

    MEDTRONIC RECEIVED INFORMATION THAT DURING THE IMPLANT OF THIS 34MM MITRAL ANNULOPLASTY BAND, IT WAS EXPLANTED AND REPLACED WITH A BAND OF THE SAME SIZE AND MODEL. THE REASON FOR THE REPLACEMENT WAS NOT REPORTED. NO ADDITIONAL ADVERSE PATIENT EFFECTS WERE REPORTED.

    Patient problems: Insufficient Information

    MAUDE report 19044549 ↗
  • InjuryMar 14, 2024Adverse Event Without Identified Device or Use Problem; Adverse Event Without Identified Device or Use Problem

    MEDTRONIC RECEIVED INFORMATION THAT 6 DAYS POST IMPLANT OF THIS 34MM MITRAL ANNULOPLASTY BAND, A DEFIBRILLATOR WAS IMPLANTED. THE REASON FOR THE DEFIBRILLATOR WAS REPORTED AS PRIOR SUDDEN CARDIAC ARREST AND VENTRICULAR FIBRILLATION. NO ADDITIONAL ADVERSE PATIENT EFFECTS WERE REPORTED.

    Patient problems: Cardiac Arrest; Ventricular Fibrillation

    MAUDE report 18906269 ↗
  • InjuryFeb 13, 2024Insufficient Device Problem Information; Insufficient Device Problem Information

    MEDTRONIC RECEIVED INFORMATION THAT 1 YEARS AND 11 MONTHS POST IMPLANT OF THIS 34MM MITRAL ANNULOPLASTY BAND, IT WAS EXPLANTED AND REPLACED WITH A 32MM ANNULOPLASTY BAND OF THE SAME MODEL. THE REASON FOR THE REPLACEMENT WAS NOT REPORTED. NO ADDITIONAL ADVERSE PATIENT EFFECTS WERE REPORTED.

    Patient problems: Insufficient Information

    MAUDE report 18699467 ↗
  • InjuryJan 18, 2024Insufficient Device Problem Information; Insufficient Device Problem Information

    MEDTRONIC RECEIVED INFORMATION THAT DURING THE IMPLANT OF THIS 34MM MITRAL ANNULOPLASTY BAND, IT WAS EXPLANTED AND REPLACED WITH AN UNKNOWN PRODUCT. THE REASON FOR THE REPLACEMENT WAS NOT REPORTED. NO ADDITIONAL ADVERSE PATIENT EFFECTS WERE REPORTED.

    Patient problems: Insufficient Information

    MAUDE report 18539453 ↗
  • InjuryNov 20, 2023Insufficient Device Problem Information; Insufficient Device Problem Information

    MEDTRONIC RECEIVED INFORMATION THAT 8 DAYS POST IMPLANT OF THIS 34MM MITRAL ANNULOPLASTY BAND, IT WAS EXPLANTED AND REPLACED WITH A 27MM DEVICE OF A DIFFERENT MANUFACTURER. THE REASON FOR THE REPLACEMENT WAS NOT REPORTED. NO ADDITIONAL ADVERSE PATIENT EFFECTS WERE REPORTED.

    Patient problems: Insufficient Information

    MAUDE report 18169817 ↗
  • InjuryNov 14, 2022Insufficient Device Problem Information; Insufficient Device Problem Information

    MEDTRONIC RECEIVED INFORMATION THAT DURING THE IMPLANT OF THIS 34MM MITRAL ANNULOPLASTY BAND, IT WAS EXPLANTED AND REPLACED WITH A N ON-MEDTRONIC RING DUE TO THE USE OF A COMPLETE RING AS OPPOSED TO A BAND.  NO ADDITIONAL ADVERSE PATIENT EFFECTS WERE REPORTED.

    Patient problems: Insufficient Information

    MAUDE report 15789181 ↗
  • InjuryMay 30, 2022Insufficient Device Problem Information; Insufficient Device Problem Information

    MEDTRONIC RECEIVED INFORMATION THAT DURING THE IMPLANT OF THIS 34MM MITRAL ANNULOPLASTY BAND, IT WAS EXPLANTED AND REPLACED WITH A 32MM BAND OF THE SAME MODEL. THE REASON FOR THE REPLACEMENT WAS NOT REPORTED.  NO ADDITIONAL ADVERSE PATIENT EFFECTS WERE REPORTED.

    Patient problems: Insufficient Information

    MAUDE report 14540035 ↗
  • InjuryMar 7, 2022Insufficient Device Problem Information; Insufficient Device Problem Information

    MEDTRONIC RECEIVED INFORMATION THAT DURING THE IMPLANT OF THIS 34MM MITRAL ANNULOPLASTY BAND, IT WAS EXPLANTED AND REPLACED WITH A 29MM MITRAL BIOPROSTHETIC VALVE. THE REASON FOR THE REPLACEMENT WAS NOT REPORTED.  NO ADDITIONAL ADVERSE PATIENT EFFECTS WERE REPORTED.

    Patient problems: Insufficient Information

    MAUDE report 13684783 ↗
  • InjuryFeb 11, 2022Insufficient Device Problem Information; Insufficient Device Problem Information

    MEDTRONIC RECEIVED INFORMATION THAT DURING THE IMPLANT OF THIS 34MM ANNULOPLASTY BAND, IT WAS EXPLANTED AND REPLACED WITH AN UNKNOWN DEVICE. THE REASON FOR EXPLANT WAS NOT REPORTED. NO ADDITIONAL ADVERSE PATIENT EFFECTS WERE REPORTED.

    Patient problems: Insufficient Information

    MAUDE report 13515333 ↗
  • InjuryJan 26, 2022Insufficient Device Problem Information; Insufficient Device Problem Information

    MEDTRONIC RECEIVED INFORMATION FROM THE PATIENT THAT DURING THE IMPLANT OF THIS 34MM MITRAL ANNULOPLASTY BAND, IT WAS EXPLANTED AND REPLACED WITH AN UNKNOWN DEVICE. THE REASON FOR THE REPLACEMENT WAS NOT REPORTED. NO ADDITIONAL ADVERSE PATIENT EFFECTS WERE REPORTED.

    Patient problems: Insufficient Information

    MAUDE report 13361222 ↗
  • InjuryJan 10, 2022Inadequacy of Device Shape and/or Size; Inadequacy of Device Shape and/or Size

    MEDTRONIC RECEIVED INFORMATION THAT DURING THE IMPLANT OF THIS 34MM MITRAL ANNULOPLASTY BAND, IT WAS EXPLANTED AND REPLACED WITH A 32MM BAND OF THE SAME MODEL. THE REASON FOR THE REPLACEMENT WAS NOT REPORTED. NO ADDITIONAL ADVERSE PATIENT EFFECTS WERE REPORTED.

    Patient problems: No Clinical Signs, Symptoms or Conditions

    MAUDE report 13206239 ↗

Other RING, ANNULOPLASTY devices

All RING, ANNULOPLASTY devices →

Sources: FDA GUDID, MAUDE and Medical Device Recalls via openFDA. openFDA data is not validated for clinical or regulatory use.