Merge hemo monitors, measures, and records physiologic data from a human patient undergoing a cardiac catheterization procedure.On (b)(6) 2011, the customer reported that there were phantom locks on a patient record.The issue was written up for review by the engineerings hands merge cleared the locks in sql and left voicemail for the site that the case is now available for edit on all tabs.The system is designed to allow users to lock a study or tab within the study to make changes.This ensures that two users can not make changes to the same study at the same time.However, in some instances the system will lock tabs within a study even when a second user does not have the study open on a different workstation.This "phantom" lock mimics the behavior described above except the lock is not caused by a second user but by the sql table.The lock might prevent users from calculating certain calculation that are required during the procedure since height and weight might be unavailable.(b)(4).
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