MAUDE Adverse Event Report: HISTOSONICS, INC EDISON; Focused ultrasound system for non-thermal, mechanical tissue ablation

Catalog Number	EDNTC1001
Medical Device Problem Code	Adverse Event Without Identified Device or Use Problem (2993)
Health Effect - Clinical Code	No Clinical Signs, Symptoms or Conditions (4582)
Date of Event	08/09/2025
Type of Reportable Event	Death
Event or Problem Description
A 73-year-old male with a history of cardiovascular disease and colorectal cancer with metastasis to the liver received a second histotripsy treatment on (b)(6) 2025 (previous treatment was 1 year prior) to a single segment 6 liver tumor for a total planned treatment volume (ptv) of 18.7 cc.Following the procedure, the patient was stable without any clinical complications and went home.The next morning the family found the patient in his bed where he had passed away.No autopsy was performed so the cause of death is unknown.
Additional Manufacturer Narrative
This mdr is being filed out of an abundance of caution considering the death occurred the day after the histotripsy procedure even though no allegations of procedure-relatedness have been made.No device malfunctions or other noteworthy events occurred during the case.

• Brand Name: EDISON
• Common Device Name: Focused ultrasound system for non-thermal, mechanical tissue ablation
• Manufacturer (Section D): HISTOSONICS, INC; 16305 36th avenue n; suite 300; plymouth MN 55446
• Manufacturer (Section G): HISTOSONICS, INC; 16305 36th avenue n; suite 300; plymouth MN 55446
• Manufacturer Contact: leeanne swiridow ; 16305 36th avenue n; suite 300; plymouth, MN 55446 ; 6123510361
• MDR Report Key: 23038747
• Report Number: 3027664504-2025-00021
• Device Sequence Number: 15988197
• Product Code: QGM
• UDI-Device Identifier: 00850006962006
• UDI-Public: 00850006962006
• Combination Product (Y/N): N
• Initial Reporter State: NV
• Initial Reporter Country: US
• PMA/510(K) Number: K233466
• Number of Events Summarized: 1
• Summary Report (Y/N): N
• Serviced by Third Party (Y/N): Unknown
• Reporter Type: Manufacturer
• Report Source: Health Professional
• Initial Reporter Occupation: Physician
• Type of Report: Initial
• Report Date (Section B): 09/12/2025

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?: No
• Operator of Device: Health Professional
• Device Catalogue Number: EDNTC1001
• Was Device Available for Evaluation?: No
• Is the Reporter a Health Professional?: Yes
• Type of Report(Section G): Thirty-Day
• Initial Date Received by Manufacturer: 08/13/2025
• Initial Report FDA Received Date: 09/12/2025
• Was Device Evaluated by Manufacturer? (Y/N): No
• Date Device Manufactured: 02/29/2024
• 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
• Outcome Attributed to Adverse Event: Death
• Patient Age: 73 YR
• Patient Sex: Male