Two new iridex lasers were acquired by the operating room and checked by biomedical engineering and placed into service.Vendor informed the team that no additional inservice training was required as the newer model operated similarly to the older model.Vendor representative presence was requested in the or for the first time use.No vendor available.Vendor representative communicated that the new lasers operated the same as the old lasers which was later learned to be incorrect while the surgeon was attempting to operate the device on a patient undergoing the procedure.The design in both models included a 'smart key' with key hole located on device.The older model required a 'smart key' to function properly while the new laser did not require activation of the device with use of a 'smart key'.The keys assigned to the new and older models were interchangeable.The smart key of the older model was placed into the new model which rendered the new laser inoperable.During the procedure, the vendor was unavailable and unable to troubleshoot or identify the cause for the device performance failure in the new laser.The older version was returned to the operating room and used for this case after the new laser was not performing as intended.The user manual does not address the purpose of the smart key and safe use.
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