Two sharkcore fine needles malfunctioned during an endoscopic ultrasound fine needle aspiration case.The needle sheet was loose and kept getting stuck and did not advance into the biopsy system.A new biopsy system and needle were obtained and it was also defective.The physician then requested a different brand.I called the medtronic rep and was told to report to technical support.After contacting technical support, i was told that the needles were on back order and they were not sure when they were going to be replaced.Also i was told i was going to receive an email with an fdr form to submit for malfunctioning equipment.I have not received an email.Will attempt contacting manufacturing again.Fda safety report id# (b)(4).
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