Patient 1 of 3: during a lap paraesophageal hernia repair, the harmonic shears read "disconnect & reconnect" several times: screen said "replace" harmonic handpiece was not working.When scrub tech connected it to the cord and attempted to ready the system, the screen said replace instrument.Scrub tech did disconnect and re-connect several times, trying to ready the system.When that was not working, we replaced the handpiece with another one and the system worked fine.Patient 2 of 3: harmonic handpiece jaws used in laparoscopic roux-en-y with dr.Would not spring release like designed; new handpiece opened to field and malfunctioning handpiece was removed from field.Patient 3 of 3: error message displayed on harmonic machine.Followed prompts unplugged and plugged in cord, cleaned and tightened assembly.Unable to "clear" error.New disposable hand piece opened and new one functioned appropriately.Malfunctioning hand piece set aside.
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