(b)(4).The customer returned a radial artery catheterization device consisting of a spring wire guide (swg), an advancer tube, a needle, and a catheter.The swg was fully advanced through the advancer tube.The catheter had been advanced down the needle approximately 3.5cm.The swg was protruding 1mm from the end of the catheter.Under microscopic examination, the catheter body had been punctured by the needle just below the hub of the catheter.The upper half of the catheter body was crumpled.Functional testing could not be performed due to the damage of the device.A device history record (dhr) was performed and no manufacturing related issues were found.The instructions for use (ifu) provided with the set describes a suggested procedure for inserting the catheter.The instructions direct the user to firmly hold the introducer needle hub in position and advance the catheter forward with a slight rotating motion.The instructions caution "do not reinsert needle into catheter to minimize risk of catheter damage." a catheter puncture could be caused either by advancing the needle through the partially inserted catheter or withdrawing the partially inserted catheter against the needle tip.Other remarks: the report of difficulty removing the device from the patient was confirmed through examination of the returned sample.The catheter body was crumpled and had been punctured by the needle just below the hub of the catheter.The guide wire was kinked, but not unraveled.A dhr review was performed and it did not reveal any manufacturing related issues.Based on the location of the catheter puncture and the information provided by the customer, it was determined that operational context caused or contributed to this event.
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