No patient injury was reported.As of the date of this report, no surgical or medical intervention has been performed for retrieval of the inverted filter.No lot number was provided; therefore, a review of the batch records could not be conducted.No product was available for return in relation to this complaint according to the per form.The filter was left in the patient, and the deployment system were not returned.Additionally, no images were provided to argon quality for investigation, despite multiple requests.If additional information is received, this complaint will be updated as necessary.The exact root cause of the complaint could not be determined.However, it is possible that the operator noted resistance in the sheath.Per the ifu, if resistance is met, the user is to discontinue the procedure.
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