BOSTON SCIENTIFIC - MARLBOROUGH STONE CONE NITINOL UROLOGICAL RETRIEVAL COIL; DISLODGER, STONE, FLEXIBLE
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Model Number M0063903100 |
Device Problem
Detachment Of Device Component (1104)
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Patient Problem
No Consequences Or Impact To Patient (2199)
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Event Date 06/20/2017 |
Event Type
Injury
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Manufacturer Narrative
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(b)(4).Although the suspect device has been received, the evaluation has not been completed.Therefore, the cause of the reported malfunction has not been determined.Upon completion of the failure analysis of the complaint device, if there is any further relevant information from that review, a supplemental mdr will be filed.
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Event Description
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It was reported to boston scientific corporation that a stone cone nitinol urological retrieval coil was used in the ureter on a procedure performed on (b)(6) 2017.According to the complainant, during the procedure, the stone cone retrieval device failed to retract into the sheath.The retrieval device was removed together with the scope from the patient's body.However, when the device was removed it was found the tip broke and detached.A grasping forceps was used to retrieved the detached tip.Fluoroscopy confirmed that no device fragments are left inside the patient.Additionally, it was reported that a laser was used during the procedure but it did not damage the retrieval device.There were no patient complications reported as a result of this event.
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Manufacturer Narrative
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A visual analysis of the returned device found that the coil is detached proximal to the distal stop.The rest of the coil is burnt and broken is several places but still attached to the device by the blue/green heat shrink.There are burn marks at the breaks.The blue sheath is detached and was not returned.Review and analysis of all available information indicates that there was an evidence of scorching which was most likely caused by the laser during the procedure.Therefore, the most probable root cause is "caused by other device" since the investigation indicates another device/drug/subsequent procedure caused the complaint event.The device history record (dhr) review found the device met all manufacturing specifications.A search of the complaint database revealed that no similar complaints exist for the specified lot.A labeling review was performed and no anomaly was found.
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Event Description
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It was reported to boston scientific corporation that a stone cone nitinol urological retrieval coil was used in the ureter on a procedure performed on (b)(6) 2017.According to the complainant, during the procedure, the stone cone retrieval device failed to retract into the sheath.The retrieval device was removed together with the scope from the patient's body.However, when the device was removed it was found the tip broke and detached.A grasping forceps was used to retrieved the detached tip.Fluoroscopy confirmed that no device fragments are left inside the patient.Additionally, it was reported that a laser was used during the procedure but it did not damage the retrieval device.There were no patient complications reported as a result of this event.
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