MAUDE Adverse Event Report: CARDIOVASCULAR SYSTEMS, INC. DIAMONDBACK 360 PERIPHERAL ORBITAL ATHERECTOMY SYSTEM; PERIPHERAL ATHERECTOMY DEVICE

Model Number DBP-125MICRO60

Device Problems Entrapment of Device (1212); Failure to Shut Off (2939); Material Integrity Problem (2978)

Patient Problem No Consequences Or Impact To Patient (2199)

Event Date 07/26/2019

Event Type  malfunction  

Manufacturer Narrative

Return of the device for analysis is anticipated.If the device is received for analysis, a supplemental report will be submitted when the device analysis is completed.(b)(4).

Event Description

During a procedure, the diamondback peripheral orbital atherectomy device (oad) would not turn off.The target lesion was located in the anterior tibial artery and was accessed via a pedal approach.During the initial treatment pass, the oad came into contact with calcium and would not stop spinning.The oad removed from the patient while it was still spinning and was unplugged to stop the device.It was noted that the tip of the viperwire seemed spongy, but there were no fractures observed.A second oad and balloon angioplasty were used to complete the procedure with no patient complications.

Manufacturer Narrative

The reported oad was received for analysis.Also received was the guide wire utilized in the procedure, and the guide wire was returned with the spring tip fractured off and missing.Adhered and embedded biological material was observed on the driveshaft and crown of the oad.The morphology and exact root cause of the accumulated material is unknown.A guide wire was unable to be passed through the area of adhered biological material and embedding material was located within the driveshaft filar.The occluded section of the driveshaft was removed, and the guide wire passed through the rest of the driveshaft and handle assembly without resistance.The oad was turned on and off multiple times without any issues observed.The oad spun at all speeds and functioned as intended with no abnormalities observed.The guide wire was analyzed using scanning electron microscopy.Analysis revealed that the guidewire support ribbon was properly soldered during manufacturing, however, the proximal solder joint had dents that may have been a result of shipping and/or handling.No radiopaque particles were found on the oad tip bushing, which indicates that the oad tip bushing did not come into contact with the guide wire spring tip.At the conclusion of device analysis, the reported event that the oad would not stop spinning was unable to be conclusively confirmed.The device history record for this oad lot number has been reviewed.No issues or discrepancies were noted during this review that would have contributed to the reported event.The device met material, assembly, and quality control requirements.The material inspection report for the reported guide wire was unable to be reviewed, as the lot number was not provided.Per additional information received from the site, the spring tip fracture event likely occurred during handling while packing the device after the procedure for shipping.The site confirmed via imaging that there was nothing remaining in the patient following the procedure, and no fracture was observed when the guide wire was removed.There is no alleged malfunction against the guide wire, therefore the guide wire fracture does not meet the definition of a complaint.Csi id# (b)(4).

• Brand Name: DIAMONDBACK 360 PERIPHERAL ORBITAL ATHERECTOMY SYSTEM
• Type of Device: PERIPHERAL ATHERECTOMY DEVICE
• Manufacturer (Section D): CARDIOVASCULAR SYSTEMS, INC.; 1225 old highway 8 nw; saint paul MN 55112
• MDR Report Key: 8888134
• MDR Text Key: 154135345
• Report Number: 3004742232-2019-00210
• Device Sequence Number: 1
• Product Code: MCW
• UDI-Device Identifier: 10852528005206
• UDI-Public: (01)10852528005206(17)210430(10)268398
• Combination Product (y/n): N
• PMA/PMN Number: K133399
• Number of Events Reported: 1
• Summary Report (Y/N): N
• Report Source: Manufacturer
• Source Type: company representative,health
• Type of Report: Initial,Followup
• Report Date: 08/28/2019

1 Device was Involved in the Event

1 Patient was Involved in the Event

• Date FDA Received: 08/13/2019
• Is this an Adverse Event Report?: No
• Is this a Product Problem Report?: Yes
• Device Operator: Health Professional
• Device Expiration Date: 04/30/2021
• Device Model Number: DBP-125MICRO60
• Device Catalogue Number: DBP-125MICRO60
• Device Lot Number: 268398
• Was Device Available for Evaluation?: Device Returned to Manufacturer
• Date Returned to Manufacturer: 08/14/2019
• Date Manufacturer Received: 08/14/2019
• Is This a Reprocessed and Reused Single-Use Device?: No
• Patient Sequence Number: 1