MAUDE Adverse Event Report: COVIDIEN MFG DC BOULDER LIGASURE; ELECTROSURGICAL, CUTTING & COAGULATION & ACCES

Model Number	LF1844
Medical Device Problem Code	Energy Output Problem (1431)
Health Effect - Clinical Code	No Clinical Signs, Symptoms or Conditions (4582)
Date of Event	09/27/2021
Type of Reportable Event	Malfunction
Additional Manufacturer Narrative
If information is provided in the future, a supplemental report will be issued.
Event or Problem Description
According to the reporter, during a procedure, the handpiece sealed inadequately, there was re-grasp alarm, and end tone was observed.A similar device was used to complete the case.There was no patient injury.
Additional Manufacturer Narrative
Evaluation summary: medtronic conducted an investigation based upon all information received.The device was available for evaluation.Visual inspection found no notable conditions.Functionally, the device's jaw opening and closing mechanism was functioning properly.The weld integrity of the device was inspected and was found to be within specification.The knife cut of the device was tested on a silicone test strip with acceptable results.The device was activated multiple times on a saline soaked gauze pad with satisfactory results.All seal cycles were completed satisfactorily and end tones were heard indicating completed activation cycles.The device was activated with the rotation knob in various positions to detect any problematic activation issues.No electrical or wiring issues were found.The device sealing performance was tested on porcine kidney tissue.The sealing was adequate when the seal cycle reached the end tone.It was reported that the device produced only a partial seal of the vessel.The reported issue could not be confirmed.The most likely cause could not be established from the information available.The evaluation detected an unreported condition not related t o the reported condition.: the unit had a jaw failure.The heel gap of the jaw was measured as required and was found to be on the low end of the specification.It has been determined that jaws measuring on the low end of specification, were more likely to generate alarm activations (regrasp alarms) during device use.The most likely cause for the additional condition is traced to device design.Internal process improvements have been initiated to mitigate this issue.The manufacturing records for each device are thoroughly reviewed prior to release to ensure that it meets all medtronic quality specifications.A secondary review of the device history records found no potentially contributing factors.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: LIGASURE
• Common Device Name: ELECTROSURGICAL, CUTTING & COAGULATION & ACCES
• Manufacturer (Section D): COVIDIEN MFG DC BOULDER; 5920 longbow dr; boulder CO 80301 3299
• Manufacturer (Section G): COVIDIEN MFG DC BOULDER; 5920 longbow dr; boulder CO 80301 3299
• Manufacturer Contact: tracy landers ; 5920 longbow drive; boulder, CO 80301 ; 3035816943
• MDR Report Key: 12632849
• Report Number: 1717344-2021-01410
• Device Sequence Number: 4522255
• Product Code: GEI
• UDI-Device Identifier: 10884521705890
• UDI-Public: 10884521705890
• Combination Product (Y/N): N
• Initial Reporter State: CT
• Initial Reporter Country: US
• PMA/510(K) Number: K162941
• Number of Events Summarized: 1
• Summary Report (Y/N): N
• Serviced by Third Party (Y/N): N
• Reporter Type: Manufacturer
• Report Source: Health Professional,Company Representative
• Initial Reporter Occupation: Other Health Care Professional
• Type of Report: Initial,Followup
• Report Date (Section B): 11/18/2021

1 Device was Involved in the Event

1 Patient was Involved in the Event

• Is this an Adverse Event Report?: No
• Is this a Product Problem Report?: Yes
• Operator of Device: Health Professional
• Device Expiration Date: 07/16/2025
• Device Model Number: LF1844
• Device Catalogue Number: LF1844
• Device Lot Number: 01870143X
• Was Device Available for Evaluation?: Device Returned to Manufacturer
• Date Returned to Manufacturer: 10/18/2021
• Is the Reporter a Health Professional?: Yes
• Type of Report(Section G): Thirty-Day
• Initial Date Received by Manufacturer: 09/27/2021
• Supplement Date Received by Manufacturer: 10/28/2021
• Initial Report FDA Received Date: 10/14/2021
• Supplement Report FDA Received Date: 11/18/2021
• Was Device Evaluated by Manufacturer? (Y/N): Yes
• Date Device Manufactured: 07/17/2020
• Is the Device Labeled for Single Use? (Y/N): Yes
• Is This a Single-Use Device that was Reprocessed and Reused on a Patient? (Y/N): No
• Usage of Device: Initial
• Patient Sequence Number: 1
• Patient Sex: Unknown