There are controls in the manufacturing process to ensure the product met specifications upon release.During visual inspection, the balloon catheter was found to be severely kinked/bent in multiply areas, the balloon catheter shaft was found to be damaged, there was no visible damage noted to the balloon.A functional test was unable to be performed due to condition of the device.The reported event is covered in the device directions for use (dfu).As well, the risk of the reported event is documented in the risk documentation and there are current controls to mitigate the risk of the as reported event.The reported balloon difficult/unable to deflate was not confirmed during the analysis, however the damage noted is likely to have caused failure to deflate during use.The device failed to meet specification when returned, based on the damage noted.It was reported that the physician was not able to deflate the balloon, no further information was available.The device was returned and the balloon catheter was noted to be kinked and damaged in numerous locations, an inflation test was unable to be performed due to the damage noted to the device.It is probable that the balloon catheter was damaged during the procedure causing the reported deflation difficulty, as the damage noted is known to cause failure to, or delayed deflation times.An assignable cause of procedural factors will be assigned to reported 'balloon difficult/unable to deflate during use' and to the analyzed 'balloon catheter kinked/bent' and 'balloon catheter damaged', as the issue is associated with a product that meets stryker design and manufacture specifications and was used in according with the dfu but due to procedural and/or anatomical factors during use, the product performance was limited.
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