WEB Aneurysm Embolization System W4-5-3-MVI-3Recalls & reported problems
Microvention, Inc. · WEB 21 SL 5x3 · Class 3 · Implant
All models of WEB Aneurysm Embolization System (15)
Data updated Oct 18, 2026 from official FDA records · Editorial policy
- Adverse event reports
- 2
- Deaths reported
- 0
- Injuries reported
- 2
- Recalls naming it
- 0
Summary
The FDA's MAUDE database contains 2 adverse event reports that list this exact device (DI 00842429106990), received between Jan 23, 2021 and Jun 9, 2021 — classified as 2 injuries.
The most frequently reported specific device problem is “Detachment of Device or Device Component” (1 report).
1 other recall cover devices cleared under the same FDA submission (P170032); they may or may not involve this specific model.
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. What reports can and can't tell you · How this data works · Data updated Oct 18, 2026.
Most reported problems
Device problems
- Detachment of Device or Device Component1
- Device Dislodged or Dislocated1
- Difficult or Delayed Separation1
- Separation Failure1
Patient problems
- No Clinical Signs, Symptoms or Conditions2
Recent adverse event reports
The 2 most recent of 2 reports, in the reporter's own words as published by the FDA.
InjuryJun 9, 2021Device Dislodged or Dislocated; Difficult or Delayed Separation; Device Dislodged or Dislocated; Difficult or Delayed Separation
IT WAS REPORTED THAT AN INTRASACCULAR FLOW DISRUPTION DEVICE (WEB SL) WAS USED FOR TREATMENT OF A BASILAR APEX ANEURYSM. AFTER SUCCESSFUL DEPLOYMENT, THE WEB WOULD NOT DETACH AND SEPARATE FROM THE DELIVERY WIRE WHEN THE DETACHMENT CONTROLLER WAS ACTIVATED. THE WEB DETACHED SUCCESSFULLY AFTER MANIPULATION OF THE DELIVERY WIRE USING PUSH/PULL TECHNIQUE. REPORTEDLY, A SLIGHT PROXIMAL REPOSITION OF THE WEB DEVICE AT THE ANEURYSM NECK WAS NOTED, WHICH RESULTED IN GREATER THAN 50% COVERING OF THE LEFT POSTERIOR CEREBRAL ARTERY (PCA). AN INTRALUMINAL SUPPORT STENT DEVICE (LVIS JR) WAS SUCCESSFULLY DEPLOYED, WHICH PROVIDED OPTIMUM COVERAGE AT THE NECK BY PUSHING THE WEB DEVICE PROTRUSION BACK INTO THE ANEURYSM. THE LEFT PCA WAS FULLY PATENT. THE PATIENT WAS REPORTED TO BE "STABLE."
Patient problems: No Clinical Signs, Symptoms or Conditions
MAUDE report 11971298 ↗InjuryJan 23, 2021Separation Failure; Detachment of Device or Device Component; Separation Failure; Detachment of Device or Device Component
IT WAS REPORTED THAT DURING DETACHMENT OF THE WEB IN AN ACOM ANEURYSM, THE MICROCATHETER AND THE WEB WERE INADVERTENTLY PULLED OUT OF THE ANEURYSM AND THE WEB DETACHED AT THE RIGHT ICA/MCA BIFURCATION. THE WEB WAS SUCCESSFULLY SECURED TO THE VESSEL WALL AT THE BIFURCATION WITH TWO STENTS. THERE WAS NO REPORTED PATIENT INJURY. THE PATIENT IS CURRENTLY REPORTED TO BE RECOVERING AND HAS NO DEFICITS.
Patient problems: No Clinical Signs, Symptoms or Conditions
MAUDE report 11219969 ↗
Recalls under the same FDA submission
These recalls involve devices cleared under P170032. One submission often covers many models, so check the product and lot details in each record.
- Z-0170-2023 · Sep 21, 2022 · Open, ClassifiedWEB Detachment Controller, REF: WDC-2, WDC, MV-WDC2. Component of WEB Aneurysm Embolization System.
Other Intrasaccular Flow Disruption Device devices
- WEB Detachment Controller WDC-2-MVIMicrovention, Inc. · Intrasaccular Flow Disruption Device1 recall0 reports
- WEB W5-4-2-MVI-3Microvention, Inc. · Intrasaccular Flow Disruption Device1 death23 reports
- WEB 17 SL 6x2 W5-6-2-MVI-3Microvention, Inc. · Intrasaccular Flow Disruption Device1 death20 reports
- WEB W5-5-2-MVI-3Microvention, Inc. · Intrasaccular Flow Disruption Device20 reports
- WEB W5-4.5-2-MVI-3Microvention, Inc. · Intrasaccular Flow Disruption Device19 reports
- WEB W5-7-3-MVI-3Microvention, Inc. · Intrasaccular Flow Disruption Device1 death16 reports
- WEB W5-6-3-MVI-3Microvention, Inc. · Intrasaccular Flow Disruption Device1 death15 reports
- WEB W5-5-3-MVI-3Microvention, Inc. · Intrasaccular Flow Disruption Device14 reports
Sources and updates
- Device record: FDA GUDID, file dated Oct 13, 2026 · View this device in AccessGUDID ↗
- Adverse event reports: FDA MAUDE, file dated Oct 14, 2026 · each report above links to its original FDA record
- Recalls: FDA Medical Device Recalls, file dated Oct 16, 2026
- Page last rebuilt: Oct 18, 2026. Data downloaded through openFDA, which notes it is not validated for clinical or regulatory use.
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