The returned sample had been shortened distal at 3,5 cm and snapped just at the junction of catheter tube and extension line.Microscopic examination of the breakage area showed the typical rough surface for a tensile breakage.From previous complaints we know different causes of a tensile fracture: dressing change - in some instances the catheter can become adhered to the dressing and additional pulling is required to free it, placing stress on the line resulting in a tensile fracture; routine care - when lifting the baby to change bedding; movement - the baby themselves catching the line, normally with a foot, during movement.It is essential to let disinfectants dry completely before the catheter is placed, as alcohol or organic solvents can damage the catheter material.Having checked the batch history records, no abnormalities were found.Each catheter is flow and leak tested during production.The tensile force of the catheter components is randomly checked.Visual tests and incoming goods inspections are carried out.The tensile force for the involved catheter tube/extension line was between 1,93 n and 3,30 n and therefore within our specification (1,5 n).This is the 6th complaint for batch 140818gm and the 37th regarding a snapped catheter on code 1261.203 within the last three years.For your information, the general complaint rate for code 1261.203 from 2015 to 2018 is at 1,12 [?].As the catheter worked well for 11 days a manufacturing fault can be excluded and no further corrective action initiated by quality management." this complaint is not confirmed.
|