MAUDE Adverse Event Report: THORATEC CORPORATION HEARTMATE MOBILE POWER UNIT, NA; VENTRICULAR (ASSIST) BYPASS

Model Number	107754
Medical Device Problem Code	Complete Loss of Power (4015)
Health Effect - Clinical Code	No Clinical Signs, Symptoms or Conditions (4582)
Date of Event	04/04/2022
Type of Reportable Event	Malfunction
Additional Manufacturer Narrative
No further information was provided.A supplemental report will be submitted once the manufacturer¿s investigation is complete.
Event or Problem Description
It was reported that the patient underwent a system controller exchange due to damage to bend relief.Further review of the log file revealed no external power alarm that activated on (b)(6) 2022 at 00:07 due to ac power disconnect while the device was connected to a mobile power unit.
Additional Manufacturer Narrative
Manufacturer's investigation conclusion: the reported event of a no external power alarm was confirmed via the log file review.The log file spanned approximately 2 days ((b)(6) 2022 per the timestamp).A no external power alarm activated on (b)(6) 2022 at 00:07 due to the rsoc and bus voltage simultaneously diminishing to ~0v with a loss of ac power while connected to the mpu.The backup battery was able to provide power to the pump during the alarm.The alarm resolved shortly after reconnecting to a power source.No other notable alarm was observed.The mobile power unit, serial (b)(6), was not returned for analysis.Additional information on 02jun2022 stated that the mpu have a v-lock power cord.The cause of the no external power alarm cannot be determined.A root cause of the reported event was not determined through this analysis.Device history records were reviewed and showed no deviations from manufacturing or qa specifications.The patient handbook cautions the users to call their hospital contacts if they think, for any reason, any portion of their equipment is not functioning as usual, is broken, or they are uncomfortable with the operation of the equipment.Heartmate iii instructions for use section 7-¿alarms and troubleshooting¿ and heartmate iii patient handbook section 5-¿alarms and troubleshooting¿ explain how to properly interpret and troubleshoot alarms including no external power.No further information was provided.The manufacturer is closing the file on this event.

• Brand Name: HEARTMATE MOBILE POWER UNIT, NA
• Common Device Name: VENTRICULAR (ASSIST) BYPASS
• Manufacturer (Section D): THORATEC CORPORATION; 6035 stoneridge drive; pleasanton CA 94588
• Manufacturer (Section G): THORATEC CORPORATION; 6035 stoneridge drive; pleasanton CA 94588
• Manufacturer Contact: bob fryc ; 6035 stoneridge drive; pleasanton, CA 94588 ; 7818528204
• MDR Report Key: 14428425
• Report Number: 2916596-2022-10686
• Device Sequence Number: 6634796
• Product Code: DSQ
• UDI-Device Identifier: 00813024013006
• UDI-Public: 00813024013006
• Combination Product (Y/N): N
• Initial Reporter State: MN
• Initial Reporter Country: US
• PMA/510(K) Number: P160054
• Number of Events Summarized: 1
• Summary Report (Y/N): N
• Serviced by Third Party (Y/N): Unknown
• 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): 06/23/2022

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: Lay User/Patient
• Device Model Number: 107754
• Device Catalogue Number: 107754
• Was Device Available for Evaluation?: No
• Is the Reporter a Health Professional?: Yes
• Was the Report Sent to FDA?: No
• Type of Report(Section G): Thirty-Day
• Initial Date Received by Manufacturer: 04/25/2022
• Supplement Date Received by Manufacturer: 05/31/2022
• Initial Report FDA Received Date: 05/18/2022
• Supplement Report FDA Received Date: 06/23/2022
• Was Device Evaluated by Manufacturer? (Y/N): No
• Date Device Manufactured: 10/20/2021
• Is the Device Labeled for Single Use? (Y/N): No
• Is This a Single-Use Device that was Reprocessed and Reused on a Patient? (Y/N): No
• Usage of Device: Reuse
• Patient Sequence Number: 1
• Patient Age: 51 YR
• Patient Sex: Female
• Patient Weight: 112 KG