An evaluation of the returned device confirmed that the distal part of the device was separated from its proximal shaft, and the internal core wire was also fractured at the same area.The resistance felt by the physician while attempting to retrieve the device with clots inside into a microcatheter, and the excessive forces applied as a result, may have led to the disconnection between the shaft and the connector, ultimately causing the core wire to tear.The technical investigation of the returned subject device demonstrated that it was properly assembled and manufactured.A review of the device history record (dhr) records confirms that there were no issues with the assembly of the subject lot.Based on the results of the investigation, dhr review, and procedure details, there is no indication that the device, labeling, or packaging failed to meet its specifications when released.
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It was reported that the tigertriever device was used in distal m1 occlusion along with rebar18 (mc) and sofia 6f (ac).According to the report from the field, when attempting the first retrieval, the physician felt resistance.He tried to pull the mc, with no success.The physician applied excessive force during retrieval which resulted in device breakage at the proximal connection between the hypotube shaft and the connector.The device was taken out of the patient using the aspiration catheter.Two clots were successfully removed with the tigertriever resulting in final tici- 2b/c.
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