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System and method for protocol adherence

  • US 9,785,744 B2
  • Filed: 09/13/2011
  • Issued: 10/10/2017
  • Est. Priority Date: 09/14/2010
  • Status: Active Grant
First Claim
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1. An apparatus comprising:

  • an optical sensing system including;

    a plurality of optical sensors configured to capture visual input in a monitored environment and generate optical sensor data characterizing a layout of the monitored environment, the plurality of optical sensors arranged to dynamically divide the monitored environment into a plurality of geo-spatial zones defining the layout, wherein each zone is associated with a task in a healthcare protocol to be monitored as part of a clinical workflow and wherein a crossing of an object between at least two zones is associated with a task in the healthcare protocol to be monitored;

    a computer vision subsystem configured to utilize one or more of the plurality of optical sensors to transform the optical sensor data from the one or more optical sensors into a vector space identifying at least one of a location and trajectory of one or more monitored people and objects in the monitored environment;

    an artificial intelligence engine configured to instantiate an augmented state transition network for each healthcare protocol to be monitored, the augmented state transition network encoding the protocol as states corresponding to protocol tasks and state transitions between tasks, the states representing the tasks and queued for monitoring, the state transitions based on a probability distribution associated with the at least one of a location and trajectory of one or more monitored people and objects in the vector space, wherein the artificial intelligence engine converts the probability distribution into a likelihood of protocol breach for the healthcare protocol to be monitored; and

    an information broker configured to publish messages from the augmented state transition network while the augmented state transition network is instantiated, the messages including the likelihood of protocol breach and information regarding the at least one of a location and trajectory of one or more monitored people and objects in the vector space; and

    a reasoning engine configured to subscribe to messages published by the information broker from the augmented state transition network, the reasoning engine to dynamically determine a protocol task violation based on deviation from a protocol state calculated using the messages, the reasoning engine triggering an alarm to report the deviation,wherein the reasoning engine is instantiated by a request from the clinical workflow and includes at least a protocol reasoning engine for the protocol, a task reasoning engine for protocol task, and a state reasoning engine for protocol state that work together to determine protocol compliance, and wherein the reasoning engine determines, using the messages and an ordered ontology for a healthcare domain, the protocol state formed from the messages using the ordered ontology based on i) a first state associated with an agent to perform an action, ii) a second state associated with an object that is a recipient of the action, and iii) a third state associated with an event that associates the action with the object and the agent, the ordered ontology enabling a processing of the protocol state and a comparison of the protocol state to identify the deviation based on an illegal state transition.

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