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The reported event was inconclusive.A potential failure mode could be ¿drain breaks.¿ a potential root cause for this failure could be "drain was rapidly removed from patient." the device was not returned for evaluation.The lot number is unknown; therefore, the device history record could not be reviewed.The instructions for use were found adequate and state the following: "use with single flat drain - place perforated wound drain within critical fluid collection area of wound.Draw drain tube through skin/stab wound incision until flat portion of drain is seated appropriately.Trim drain tube to desired length and attach to blue adapter.Connect other end of blue adapter to y-connector.Insert connecting tube in reliavac® port a, up to indicator ring.Use with two flat drains - place perforated portion of wound drains within critical fluid collection areas of wound.Draw drain tubes through skin/stab wound incision until flat portion of the drains are seated appropriately.Trim drain tubes to desired length.Cut off plug from closed arm of y-connector and attach blue adapters.Attach drains to blue adapters.Insert connecting tube in reliavac® port a, up to indicator ring.Caution: punctures or additional perforations should not be made in the silicone wound drain.Attaching to auxiliary suction - insert suction adapter into port b.During auxiliary suction, balloon will inflate and exudate will flow over balloon surface from port a to port b.To discontinue auxiliary suction, remove suction adapter and close port b.Caution: do not use with wall suction in excess of 210mm hg.To establish suction - open port b.Pump bulb until balloon fills container.Close port b.Note: hissing sound is normal and stops when maximum suction pressure is reached.Possible reflux of fluid to the patient is reduced during reliavac® evacuator reactivation by a built-in anti-reflux valve in port a.To empty container - open port b.Invert unit.Pump bulb to empty quickly.To re-establish suction - repeat step "d" above.To read fluid volume - open port b.Allow balloon to deflate.Read and record volume.To reactivate, repeat step "d" above.".
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