As reported, the locking mechanism of a 7f 2.2mm x 50 cm bipal biopsy forceps would not release the third sample obtained from a patient undergoing right heart catheterization (cath) with multiple myocardial biopsies.The patient required transfer to the operating room (or) for removal.There were two unsuccessful attempts made to release the locking mechanism by cutting the coaxial cable.The forceps had to be pulled from the myocardial tissue causing a portion of the myocardium to be extracted with the forceps leading to a pericardial effusion.The biopsy forceps were tested prior to use and were functioning properly.Two other biopsies had been obtained without difficulty.This report is sourced from a medwatch filed by the user facility.Multiple attempts to obtain supplemental information were made; however, additional event details were not provided nor a requested procedural cd could be obtained.The device is available for evaluation and it is expected to be returned.
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As reported, the locking mechanism of a 7f 2.2mm x 50 cm bipal biopsy forceps would not release the third sample obtained from a patient undergoing right heart catheterization (cath) with multiple myocardial biopsies.The patient required transfer to the operating room (or) for removal.There were two unsuccessful attempts made to release the locking mechanism by cutting the coaxial cable.The forceps had to be pulled from the myocardial tissue causing a portion of the myocardium to be extracted with the forceps leading to a pericardial effusion.The biopsy forceps were tested prior to use and were functioning properly.Two other biopsies had been obtained without difficulty.This report is sourced from a medwatch filed by the user facility.Multiple attempts to obtain supplemental information were made; however, additional event details were not provided, nor a requested procedural cd could be obtained.The device was returned to norman noble (nni) for analysis.During evaluation, it was found that the device has a foreign substance inside the body and on the cutters that will not allow the cutters to open.Additionally, when unpackaging the device, it was found with two bends/kinks towards the distal end.The inspection, handling, and packaging processes during nni manufacturing are controlled to prevent kinks and bending of the device.The foreign substance inside the body and on the cutters that would not allow the cutters to open is suspected to be bodily fluids.However, nni cannot confirm what the foreign substance is, as nni does not conduct any testing on the foreign substances unless it was deemed that it could have been from the manufacture of the product.There are no substances or coatings used in the nni process that would be on or near the cutter end of the product.Additionally, functional testing of each bipal is performed prior to packaging.Therefore, the bipal would not have been able to function properly at nni during this test if there was something on the cutters.A product history record (phr) review of lot n0622305 revealed no anomalies or non-conformances during the manufacturing and inspection processes that can be associated with the reported event.The reported ¿jaws-open/close difficulty¿, ¿biopsy forceps-withdrawal difficulty¿ and subsequent ¿pericardial effusion¿ event could not be confirmed as the substance in the body prevented analysis of the cutters and there was no receipt of procedural films.The exact cause of the issue experienced by the customer could not be determined through product analysis.Based on the information available for review and the product analysis, it is difficult to determine what factors may have contributed to the issues reported.However, procedural/handling factors (which possibly contributed to the two kinks in the device) may have contributed to the issues experienced since it was reported that the device functioned properly for the first two samples and as damage to the biopsy forceps can impair the opening/closing function of the jaws.Pericardial effusion is a known potential complication and is captured in the instructions for use (ifu) as ¿perforation of the vessel wall or the myocardium.¿ the pericardium or pericardial sac is a double-walled sac containing the heart and the roots of the great vessels.It has two layers and contains pericardial fluid, which separates the heart from the interference of other structures, protects its against infection and blunt trauma, and lubricates the heart's movements.Pericardial effusion is an abnormal accumulation of fluid in the pericardial cavity.This can occur due to inflammation of the pericardium from an infection or injury or can occur due to trauma resulting in blood entering the sac.Although not intended as a mitigation of risk, the information for safety within the ifu is provided in the product¿s labeling with the intent to make the user aware of the risks.The ifu warns, ¿forceps are extremely difficult to clean after exposure to biological material and may cause adverse patient reactions if reused.¿ additionally, the ifu cautions, ¿the forceps should be thoroughly rinsed with heparinized saline before and after each biopsy during the procedure.If strong resistance is met during manipulation, discontinue the procedure and determine the cause of resistance before proceeding.If the cause of resistance cannot be determined, withdraw the forceps.¿ also, the ifu recommends, ¿closing of the jaws and withdrawal of the bioptome should be performed in a single motion.¿ neither the phr review, nor the product analysis suggests that the failures experienced by the customer are related to the device¿s design or manufacturing process.Therefore, no corrective or preventive actions will be taken at this time.
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