Titan touch pump and cylinders 1 and 2 were received for evaluation.Abrasion was noted on the longer exhaust tube and the inlet tube of the pump.The surfaces of the detachment site of the shorter exhaust tube of the pump appear to be rough and irregular, indicating stress was exerted.No functional abnormalities were noted with cylinder 1 or cylinder 2.Based on examination of the returned product, it was concluded that while in-vivo both the exhaust tubes and inlet tube of the pump had overlapped and abraded against one another.While no functional abnormalities were noted during testing with the returned components, microscopic examination of the surfaces of the exhaust tube detachment end between the pump and cylinder 1 revealed rough and irregular surfaces, indicating stress was exerted.Based on the overlapping of the pump tubes, in combination with device usage over time, this could contribute to sufficient stress to separate the exhaust tubing of the pump.A separation of this type would then allow the loss of fluid, making the device inoperable.A review of the device history record confirmed the devices from this lot met all specifications prior to release.A review of the complaint history database, nonconformances and capas revealed no trends for this lot.
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