CARDIOVASCULAR SYSTEMS, INC. DIAMONDBACK 360 PERIPHERAL ORBITAL ATHERECTOMY SYSTEM; PERIPHERAL ATHERECTOMY DEVICE
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Model Number DBP-200MAX145 |
Device Problem
Material Separation (1562)
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Patient Problem
No Clinical Signs, Symptoms or Conditions (4582)
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Event Date 02/28/2023 |
Event Type
malfunction
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Manufacturer Narrative
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The oad was returned to csi with a fracture at the distal side of the crown.The fractured distal section was not returned for analysis.Scanning electron microscopy (sem) analysis of the fractured filars shows evidence of fatigue.This is an indication that the driveshaft was spun in a high stress environment.However, the exact root cause of the fracture was unable to be conclusively determined.The peripheral orbital atherectomy system indications for use cautions: "when treating tight stenosis, create a channel at low or medium speed before traversing the lesion at high speed.Crossing a tight stenosis on high speed may cause the shaft and/or guide wire to fracture as a result of excessive force." 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.Csi id: (b)(4).
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Event Description
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The diamondback 360 peripheral orbital atherectomy device (oad) was used to perform one low speed treatment and two high speed treatments.During the third treatment, it was noticed the driveshaft tip was not coming back with the crown.The oad was removed, and it was noted the tip had detached from the oad.The fractured tip was retrieved via wire pull back.Balloon angioplasty was performed, and a stent was placed to complete the procedure.The patient was in stable condition.
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