MAUDE Adverse Event Report: MICRO THERAPEUTICS, INC. DBA EV3 PHENOM¿ 21 CATHETER; CATHETER, CONTINUOUS FLUSH

Model Number FG13160-0615-1S

Device Problems Difficult to Remove (1528); Stretched (1601); Device Dislodged or Dislocated (2923)

Patient Problem Device Embedded In Tissue or Plaque (3165)

Event Date 02/04/2022

Event Type  malfunction  

Event Description

Medtronic received information reporting that during a mechanical thrombectomy procedure in the middle cerebral artery (mca), the ph ysician was attempting to aspirate the clot.The phenom 21 was being used for guide.The catheters were delivered to the desired location and the physician attempt to take the phenom 21 and guidewire back but the phenom catheter tip was entrapped.Force was needed and the the catheter was stretched; it was noted the proximal marker was implanted.  there were no patient symptoms or other complications associated with this event.Vessel tortuosity was severe.There was no vasospasm observed.Ancillary device: penumbra 4max guide catheter.

Manufacturer Narrative

If information is provided in the future, a supplemental report will be issued.

Manufacturer Narrative

Medtronic is submitting this report to comply with fda reporting regulations under 21 cfr parts 4 and 803.This report is based upon information obtained by medtronic, which the company may not have been able to fully investigate or verify prior to the date the report was required by the fda.Medtronic has made reasonable efforts to obtain more complete information and has provided as much relevant information as is available to the company as of the submission date of this report.This report does not constitute an admission or a conclusion by fda, medtronic, or its employees that the device, medtronic, or its employee caused or contributed to the event described in the report.In particular, this report does not constitute an admission by anyone that the product described in this report has any ¿defects¿ or has ¿malfunctioned¿.These words are included in the fda 3500a form and are fixed items for selection created by the fda to categorize the type of event solely for the purpose of regulatory reporting.Medtronic objects to the use of these words and others like them because of the lack of definition and the connotations implied by these terms.This statement should be included with any information or report disclosed to the public under the freedom of information act.Any required fields that are unpopulated are blank because the information is currently unknown or unavailable.A good faith effort will be made to obtain the applicable information relevant to the report.If information is provided in the future, a supplemental report will be issued.

Event Description

Additional information received reported that when the physician took the ¿phenom¿ cath back, the phenom¿s proximal marker was implanted.There was no injury to the patient.

Manufacturer Narrative

Product analysis: as found condition: the phenom 21 catheter was returned for analysis within a shipping box; within a plastic bio-pouch; and within an opened phenom 21 catheter outer carton.Visual inspection/damage location details: upon visual inspection, no damages or irregularities were found with the phenom 21 catheter hub.The phenom 21 catheter body was found to be flattened from ~12.5cm to the distal tip.The distal tip was appeared to be damaged/ deformed.No other anomalies were observed.Testing/analysis: the phenom 21 total and usable lengths were measured to be within specification.The phenom 21 catheter was flushed, water exited from the distal tip.The phenom 21 catheter was then tested with an in-house 0.021¿ mandrel.The in-house mandrel was inserted into the phenom 21 hub and pass through the catheter lumen without any issues.Conclusion: based on the device analysis and the reported information, the customer¿s report of ¿marker band dislodged¿ was confirmed as the distal tip was damaged/deformed.However, the phenom 21 could not be confirmed to have catheter stretch during removal or catheter entrapment/difficult removal.The phenom 21 catheter did not appear to be stretched.Possible causes for ¿catheter stretch during removal¿ include use of incompatible devices, patient vessel tortuosity, catheter entrapment, user operational context if user advances or retrieves intraluminal device against resistance and excessive force used in procedure (pushing or pulling).It is likely that patient tortuous anatomy during delivery may have contributed to the reported issues.Medtronic is submitting this report to comply with fda reporting regulations under 21 cfr parts 4 and 803.This report is based upon information obtained by medtronic, which the company may not have been able to fully investigate or verify prior to the date the report was required by the fda.Medtronic has made reasonable efforts to obtain more complete information and has provided as much relevant information as is available to the company as of the submission date of this report.This report does not constitute an admission or a conclusion by fda, medtronic, or its employees that the device, medtronic, or its employee caused or contributed to the event described in the report.In particular, this report does not constitute an admission by anyone that the product described in this report has any ¿defects¿ or has ¿malfunctioned¿.These words are included in the fda 3500a form and are fixed items for selection created by the fda to categorize the type of event solely for the purpose of regulatory reporting.Medtronic objects to the use of these words and others like them because of the lack of definition and the connotations implied by these terms.This statement should be included with any information or report disclosed to the public under the freedom of information act.Any required fields that are unpopulated are blank because the information is currently unknown or unavailable.A good faith effort will be made to obtain the applicable information relevant to the report.If information is provided in the future, a supplemental report will be issued.

• Brand Name: PHENOM¿ 21 CATHETER
• Type of Device: CATHETER, CONTINUOUS FLUSH
• Manufacturer (Section D): MICRO THERAPEUTICS, INC. DBA EV3; 9775 toledo way; irvine CA 92618
• Manufacturer (Section G): MICRO THERAPEUTICS, INC. DBA EV3; 9775 toledo way; irvine CA 92618
• Manufacturer Contact: glen belmer ; 9775 toledo way; irvine, CA 92618 ; 6122713209
• MDR Report Key: 13636618
• MDR Text Key: 294672050
• Report Number: 2029214-2022-00330
• Device Sequence Number: 1
• Product Code: KRA
• UDI-Device Identifier: 00847536041844
• UDI-Public: 00847536041844
• Combination Product (y/n): N
• Reporter Country Code: KS
• PMA/PMN Number: K151638
• Number of Events Reported: 1
• Summary Report (Y/N): N
• Report Source: Manufacturer
• Source Type: Foreign,Health Professional,Company Representative,Distributor
• Reporter Occupation: Physician
• Type of Report: Initial,Followup,Followup
• Report Date: 04/28/2022

1 Device was Involved in the Event

1 Patient was Involved in the Event

• Is this an Adverse Event Report?: Yes
• Is this a Product Problem Report?: Yes
• Device Operator: Health Professional
• Device Model Number: FG13160-0615-1S
• Device Catalogue Number: FG13160-0615-1S
• Device Lot Number: SE21-021
• Was Device Available for Evaluation?: Device Returned to Manufacturer
• Is the Reporter a Health Professional?: Yes
• Initial Date Manufacturer Received: 02/08/2022
• Initial Date FDA Received: 03/01/2022
• Supplement Dates Manufacturer Received: 03/13/2022; 04/10/2022
• Supplement Dates FDA Received: 04/06/2022; 04/28/2022
• Was Device Evaluated by Manufacturer?: Yes
• Date Device Manufactured: 09/15/2021
• Is the Device Single Use?: Yes
• Is This a Reprocessed and Reused Single-Use Device?: No
• Type of Device Usage: Initial
• Patient Sequence Number: 1
• Patient Age: 80 YR
• Patient Sex: Male