WO2007081629A2 - Procédés et systèmes pour le contrôle de la qualité et de l'efficacité d'un établissement de santé - Google Patents

Procédés et systèmes pour le contrôle de la qualité et de l'efficacité d'un établissement de santé Download PDF

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Publication number
WO2007081629A2
WO2007081629A2 PCT/US2006/061796 US2006061796W WO2007081629A2 WO 2007081629 A2 WO2007081629 A2 WO 2007081629A2 US 2006061796 W US2006061796 W US 2006061796W WO 2007081629 A2 WO2007081629 A2 WO 2007081629A2
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WIPO (PCT)
Prior art keywords
patient
facility
profile
staff
data
Prior art date
Application number
PCT/US2006/061796
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English (en)
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WO2007081629A3 (fr
Inventor
Mark E. Rogers
Original Assignee
Valence Broadband, Inc.
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Priority claimed from US11/561,263 external-priority patent/US20070132597A1/en
Priority claimed from US11/608,125 external-priority patent/US7761310B2/en
Priority claimed from US11/608,074 external-priority patent/US7786874B2/en
Application filed by Valence Broadband, Inc. filed Critical Valence Broadband, Inc.
Priority to EP06849199A priority Critical patent/EP1969554A4/fr
Priority to CA002604214A priority patent/CA2604214A1/fr
Publication of WO2007081629A2 publication Critical patent/WO2007081629A2/fr
Publication of WO2007081629A3 publication Critical patent/WO2007081629A3/fr

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Definitions

  • the invention is in the field of patient monitoring systems and methods for assessing and ensuring a level of quality and performance provided by a healthcare facility.
  • the invention more particularly relates to ensuring that a healthcare facility is able to increase quality and performance based on patient specific attributes and needs embodied in individualized patient profiles, initiating appropriate responses to the patients' needs based on such profiles, and refining the patient profiles based on information gathered over time for each patient.
  • Healthcare facilities provide clinical and/or wellness health care for patients and/or residents (hereinafter collectively referred to as "patients") at such facilities. Hospitals and medical clinics provide clinical health care. Assisted living and nursing homes focus primarily on wellness health care. Most facilities provide at least some monitoring and supervision of patients to ensure they are receiving proper nutrition and medicines, are kept clean, and are protected from physical injury.
  • a central station e.g., a nursing station
  • a central station typically functions as a primary gathering and dispatch location for caregivers. At specified intervals, or in response to a patient or resident request, a caregiver can move from the central station to a patient's location (e.g., room) and monitor or provide appropriate care.
  • Other measurements of quality and performance involve maintaining patients within defined safety or security zones, tracking and analyzing patient gait or daily ambulation to diagnose potential injury or health issues, tracking patient contacts with assigned caregivers and/or third parties, monitoring patient socialization, initiating patient surveillance upon the occurrence of a triggering event, tracking staff movements and activities, tracking visitor movements and activities, responding to patient initiated calls or alerts, tracking assets used to provide patient care (e.g., medical devices, walkers, dentures, etc.), verifying the occurrence of prescribed treatments for each patient, and the like.
  • patient care e.g., medical devices, walkers, dentures, etc.
  • one type of patient monitoring system utilizes sensors to detect patient bed exiting.
  • a common problem that leads to a high level of false positives and false negatives is a "one size fits all" approach to detecting and interpreting patient movements.
  • people often have uniquely personal ways of getting out of bed no attempt is made in conventional monitoring systems to understand the specific movements and habits of a particular patient when bed exiting. For example, one patient might typically grasp the left handrail when commencing to bed exit while another might slide towards the foot of the bed. Persons who are left handed might exit their beds oppositely from right handed persons.
  • Certain medical conditions might determine or alter bed exiting behavior (e.g., a person with a newly formed incision might protect against harm or pain by avoiding movements that would apply stress to the incision, even if such movements were previously used to bed exit when the patient was healthy).
  • bed exiting behavior e.g., a person with a newly formed incision might protect against harm or pain by avoiding movements that would apply stress to the incision, even if such movements were previously used to bed exit when the patient was healthy.
  • the present invention relates to patient monitoring methods and systems used to ensure an appropriate level of quality provided to the patients and performance by staff and visitors at a healthcare facility.
  • Real time data regarding the locations, movements and/or behaviors of each of a plurality of patients, caregivers, visitors and assets is obtained from multiple sources and analyzed by a computer system (e.g., facility master).
  • the computer system meaningfully interprets the data through the use of individualized patient specific profiles in order to interpret the overall quality of service provided to each patient at a healthcare facility.
  • the individual performance by staff and visitors, as they relate to the overall performance of the facility can be evaluated through the use of staff and visitor specific profiles.
  • the computer system may initiate an appropriate response to prevent or mitigate patient harm, unauthorized access to restricted zones, or other inappropriate or harmful actions.
  • Data regarding the location, movements and/or behaviors of patients, staff, visitors and assets throughout or outside a facility can be gathered using any detection means known in the art including, but not limited to, RFID devices, an RFID detection grid, GPS devices, cameras, motion detectors, light beam detectors, image analysis systems and the like.
  • In-room surveillance cameras can be used to generate a data stream that is interpreted by a local computer system (e.g., in room controller), such as to detect movements or behaviors that may lead to unassisted support exiting by a patient.
  • Motion and light beam detectors may also be used to detect patient, staff or visitor movements and generate data that can be analyzed by the computer system.
  • a video feed from a surveillance camera may be sent to a nursing station for verification or denial by staff that a triggering event actually occurred and that a response is required to prevent or mitigate patient harm or prevent inappropriate activity.
  • the verification or denial by staff forms an information feedback loop that can be used to refine patient, staff or visitor profiles to tighten or loosen limits or alarm levels as appropriate to more accurately identify the occurrence of triggering events in the future.
  • Profiles can also be updated to reflect the occurrence of non-occurrence of prescribed activities, as may be automatically determined by tracking the locations of patients, staff, assets and visitors at a facility.
  • the refinement of profiles over time allows the system to "learn" and store individualized data regarding the specific behaviors, attributes and performance of patients, staff or visitors at the facility. This reduces the instances of false positives and false negatives as it relates to detecting triggering events.
  • quality and performance criteria include, but are not limited to, ensuring the general safety of patients (e.g., preventing and/or intervening in the case of unassisted support exiting, maintaining patients within prescribed geographic zones within or without a facility, responding to patient emergencies or alerts, and the like), assessing the status of prescribed actions (e.g., which involve caregivers, assets, patient-initiated behaviors, and the like), and assessing the status of patient's general health and well being (e.g., patient nutrition, ambulation tracking, denture use, use of walking aids, socialization, privacy, pain level, rollovers to prevent bed sores, and the like).
  • ensuring the general safety of patients e.g., preventing and/or intervening in the case of unassisted support exiting, maintaining patients within prescribed geographic zones within or without a facility, responding to patient emergencies or alerts, and the like
  • assessing the status of prescribed actions e.g., which involve caregivers, assets, patient-initiated behaviors, and the like
  • quality, performance, care and wellness parameters can be measured by tracking the location of each patient relative to the locations of caregivers, other patients, visitors, assets and/or fixed objects or locations.
  • Certain care regimens or activities involve interactions between patients and assigned caregivers and/or assets at specified locations, often for specific durations or time intervals.
  • Other aspects of quality and performance involve the movement of patients between certain specified locations throughout a facility, often at defined time periods. Yet others may involve interactions between multiple patients and/or patients and visitors.
  • Individualized care and wellness parameters can be established, verified and refined through the use of specific patient profiles, sometimes in conjunction with staff and/or visitor profiles.
  • the inventive systems and methods are able to interpret behaviors, conditions and events in a highly individualized manner as among different patients at a healthcare facility. Appropriate alarms, limits and prescriptions may be set for each patient as appropriate based on data contained in the patient specific profiles.
  • a typical patient profile includes both static and dynamic data relating to a plurality of specific care and wellness parameters. These may include, for example, limits or alarm levels relating to one or more of support exiting behavior and occurrence, patient ambulation, the use of ambulation devices, patient gait behavior, sound of patient breathing, dietary restrictions, prescribed levels of caregiver assistance for one or more activities, trips to cafeteria, assisted and/or unassisted bed turning, social interactions, prescribed patient care regimens, in-room therapy, required therapeutic devices, denture use and cleaning, bathroom time duration, facility access or movement privileges, facility exiting privileges, flight risk level, facility restricted areas, emergency call button usage, pet therapy contact, patient treatment by movement of, e.g., facility assets and/or personnel, critical medical history, and/or emergency contact information.
  • a general patient profile of common or known patient specific behaviors may be utilized before specific information is learned about the patient through the information feedback loop.
  • the profile is periodically refined based on verified and/or rejected patient behaviors relative to a specific risk or activity, it becomes more accurately predictive of actual risk or behavior by the patient. That reduces the incidence of false positives and false negatives and allows for earlier intervention into the risk sequence.
  • patient profiles having initially coarse granularity due to the lack of known patient behaviors and attributes may have increasingly fine granularity as the profiles are refines over time.
  • Increasing profile granularity may account for idiosyncratic movements or behaviors that are entirely unique to a particular patient in addition to the commonly observed movements or behaviors common to many patients.
  • Profile data can be uploaded to networked or peripheral computers as needed to carry out a desired patient monitoring activity.
  • An information feedback loop can be used to update each patient profile, which may occur automatically or manually as directed by patient and/or staff actions, in order to create and maintain a current database of patient status, attributes and needs.
  • Actions that might be used to refine patient specific profile data include, for example, patient movements that precede support exiting, changes in patient gait, social interactions, recursive events, patient wandering or flight, use of emergency call button, sound of patient breathing, patient eating habits, observations by caregivers regarding patient behavior or condition, and patient treatment by movement of, e.g., facility assets and/or personnel.
  • Information may be gathered for analysis by the computer system by means of RFID devices carried by patients, staff, assets, and visitors, RFID detection grids, still shot cameras, video cameras, audio recording devices, GPS devices, etc.
  • an alert for direct physical intervention may be sent to a staff member assigned to a particular patient or who is close to the patient and not otherwise occupied.
  • the alert may be sent to a personal data assistant carried by each caregiver.
  • the alerted staff member can send verification that intervention was successful.
  • the RFID device carried by the responder can also be tracked automatically to verify that intervention has occurred. Examples of triggering events include preventing unassisted support exiting, preventing patient wandering into unauthorized zones, preventing patient flight from the facility, and preventing patient abuse by caregivers, other patients or visitors.
  • An example of using a patient specific profile to improve patient wellness involves detecting and then preventing or mitigating potential harm caused by unassisted patient support exiting.
  • the inventive methods and systems can be used to monitor a patient resting on a bed (e.g., standard hospital bed with side rails), wheelchair, gurney, couch, chair, or recliner, to which the patient may be confined and detect movements or behaviors that are predictive of support exiting. Monitoring may be performed by one or more cameras, motion sensors, small zone RFID, and/or light beam detectors.
  • a computer system analyzes a data stream and detects movements or behaviors that are predictive of support exiting. The use of patient specific profiles helps the computer system distinguish between movements that are predictive of support exiting and movements that are not.
  • behavior predictive of support exiting by a patient is detected, examples of which include one or more of alerting staff, establishing two-way audio-video communication between staff and the patient, sending prerecorded audio and/or video warnings to the patient's room, direct intervention by a staff member, and automated functions, such as bed lowering, raising a bedrail, turning on a light, or actuation of a patient restraint device.
  • alerting staff establishing two-way audio-video communication between staff and the patient
  • sending prerecorded audio and/or video warnings to the patient's room direct intervention by a staff member
  • automated functions such as bed lowering, raising a bedrail, turning on a light, or actuation of a patient restraint device.
  • Similar algorithms involving analysis of video data streams can be used to detect other movements by a patient such as patient rollover (e.g., to prevent skin damage), movements indicative of disease, movements consistent with prescribed behaviors, and the like.
  • An information feedback loop provided by a system of cameras and monitors permits human inspection and verification of patient support exiting before initiating audio, visual and/or physical intervention.
  • a video feed of the patient is sent to a monitor at a central station (e.g., nursing station) subsequent to a visual and/or aural alert to both the nursing station and the patient's room.
  • a staff member views the live video stream from the patient's room to determine if the patient is actually attempting to exit the support. If so, verification is provided to the computer system by the staff member and appropriate intervention to prevent or assist support exiting is initiated. If not, rejection is provided to the computer system. If no response to the alert is given within a prescribe time period, an automated response may be initiated, such as sending a pre-recorded message or warning to the patient and/or alerting nearby staff for direct physical intervention.
  • the information feedback loop can also be used to update a patient profile to better predict future support exiting.
  • the action of verifying or rejecting an automated support exiting alert based on actual patient movements and behavior can be recorded by the computer system and used to refine the patient profile (e.g., tightening or loosening limits) in order to better predict future support existing.
  • the information feedback loop can also be used to refine other limits or data in the patient profile. For example, if the monitoring system detects patient movements that may be indicative of flight from the facility, wandering into unauthorized zones, or substantial changes in patient gait, an alert may be triggered and a video feed of the patient sent to a central nurse's station. Two- way communication can also be established to determine the patient's actual intentions or needs. Based on actual patient behavior, limits can be tightened or loosened to better predict patient flight risk, wandering, or health issues relating to gait.
  • a video data stream is generated by a surveillance camera, such as to detect support exiting or other high risk patient behavior, it is typically deleted on an ongoing basis to protect patient privacy. If the video stream is made available for viewing (e.g., by being sent to a nursing station), an alert is sent to the patient to notify of potential third party viewing to protect privacy (e.g., by means of a chime, recording, visual display of words, etc.).
  • the video data stream may be optionally archived (e.g., recorded on a non- volatile recording medium) for later viewing and analysis of an event. The archived video can be used to assess the overall quality and performance of a healthcare facility.
  • Events that might trigger video archiving include entry into the patient's room or personal space by staff, visitors or other patients, manual alerts or distress signals sent by a patient, detection of other dangerous conditions (e.g., alterations of vital signs), and requested archiving by visiting relatives, friends, doctors or other health care providers.
  • the location of patients can be continuously tracked by means of an assigned RFID device worn or carried by each patient that emits a signal that can be detected and traced to a specific location by an RFID sensor grid.
  • the RFID device may include an alert device that can be activated in case of emergency of other urgent need. Because the RFID device also provides means for locating the patient, assistance can be provided quickly even if the patient cannot communicate. Two-way audio-visual communication may be initiated via a camera, video monitor, microphone and speaker.
  • the alerting system may access the patient's profile in order to tailor the response to specific patient needs. Patient usage of the alert feature can be tracked, analyzed and used to update the patient's profile. For example, a patient profile may include data relating to proper and/or improper usage of the patient alert button.
  • computer controlled methods and systems can be used for monitoring the location and/or activities of patients, staff, assets and visitors and as they relate to prescribed care and wellness, responding to actionable events, verifying wellness events, maintaining and updating patient, staff and visitor profiles, preventing or mitigating patient injury, locating and assisting patients in need of assistance, and monitoring and archiving video information relating to potentially dangerous activities.
  • Figure 1 schematically illustrates various exemplary computer-client network protocols that can be used to facilitate communication between a facility master computer system and peripheral clients;
  • Figure 2 schematically illustrates an exemplary facility monitoring master system
  • Figure 3 schematically illustrates exemplary computer architecture that facilitates facility, patient, staff and/or asset monitoring and event response management
  • Figure 4 is a flow chart that illustrates an exemplary method for managing a response to an actionable event in a healthcare facility
  • Figure 5 is a flow chart that illustrates an exemplary method for maintaining alarm levels in a patient risk profile for a patient of a healthcare facility
  • Figure 6 is a flow chart that illustrates an exemplary method for determining patient care and wellness using individualized patient profiles
  • Figure 7 schematically illustrates the interrelationship of various data gathering and analysis modules used to maintain and refine a patient profile
  • Figure 8 is a flow chart that illustrates an exemplary method for maintaining stored profiles for a plurality of patients at a healthcare facility
  • Figure 9 schematically illustrates an exemplary system for patient monitoring, alert and response
  • Figures 1OA and 1OB schematically illustrate exemplary configurations of patient rooms at a healthcare facility equipped for patient monitoring and response to support exiting;
  • Figure HA and HB schematically illustrate alternative patient support exiting detection systems
  • Figure 12 is a flow chart that illustrates an exemplary method for monitoring a patient on a support, detecting possible support exiting, and initiating a response to prevent or mitigate patient harm;
  • Figures 13A-13E schematically depict a patient in various exemplary positions on a bed relative to known bed exiting behaviors
  • Figure 14 is a flow chart that illustrates an exemplary method for generating and updating a patient profile that contains data relating to support exiting behavior of that patient;
  • Figure 15 is a flow chart that illustrates an exemplary method for responding to a computer predicted support exiting event
  • Figure 16 is a decision chart that illustrates an exemplary decision sequence for responding to an alert of predicted bed exiting
  • Figure 17 is a flow chart that illustrates an exemplary method for providing an automated response to a patient initiated alert
  • Figure 18 is a flow chart that illustrates an exemplary method for selective archiving of a video data stream of a patient in response to a triggering event.
  • Embodiments of the present invention extend to methods, systems, and computer program products for managing quality of care and performance by staff and visitors at a healthcare facility.
  • the invention more particularly relates to computer-controlled methods and systems for monitoring a plurality of patients, staff, assets and visitors at the facility using electronic devices, computers, patient profiles, staff profiles, visitor profiles, algorithms, human verification of triggering events, and direct human intervention to provide improved quality of care and performance based on each patient's general and individualized needs.
  • Patient specific data can be collected for each patient to create a database of generalized and personalized knowledge. Healthcare facilities and providers can use the database of knowledge to better understand risks associated with various activities for each patient and/or for each type of activity. Predictive modeling and artificial intelligence can be applied to collected data patterns to identify, process, categorize, alarm, and rectify risks based on patient information, such as, for example, patient type, patient activity, patient medications, patient physical therapy process, patient location, and other variables.
  • the quality and performance monitoring systems and methods of the invention assist caregivers at a facility in ensuring and verifying that each patient at the facility receives a prescribed level of care and also helps ensure wellness for each of a plurality of patients based on one or more predetermined wellness criteria.
  • some or all patients may require specialized care and have different wellness criteria based on individual patient needs (e.g., based on age, physical capacity, mental capacity, and the like).
  • the quality and performance systems and methods of the invention monitor care and wellness for each patient by means of automated tracking of patients, caregivers and assets used to deliver care, and visitors.
  • the inventive methods and systems track patient location, activities, condition, and regimen completion, as well as assigned caregiver and asset location, activities and regimen completion. Care and wellness are measured in relation to individual patient profiles which are maintained and periodically refined for each patient.
  • the quality and performance of staff and visitors can also be monitored and assessed using staff and visitor profiles.
  • the methods and system initiate responses to pre-determined triggering events to prevent or mitigate patient harm.
  • the methods and systems are implemented using a computer-controlled electronic patient monitoring system that receives and analyzes data generated by a network of electronic data generating devices.
  • a profile maintenance and refinement sub-system and method is used to periodically update and refine patient, staff and visitor profiles as data is received and analyzed for individual patients, staff and visitors.
  • the care and wellness of a patient, as well as the performance of staff and visitors, can be analyzed and improved through the use of individually refined profiles.
  • patient profile shall refer to stored data that is associated with a specific patient at a health facility.
  • Patient profiles typically include static data and dynamic data.
  • Dynamic data refers to limits and alarms that are continuously or periodically updated or refined based on information learned about the patient and/or changing patient needs or requirements. Dynamic data can be automatically updated in response to events or it may be manually updated by staff after an event.
  • care and wellness shall be broadly understood to cover every aspect of a patient's life and well being that are relevant to care and treatment at a health facility. Care more particularly relates to treatments, activities and regimens that are provided to the patient in order to ensure a prescribed or minimum level of general health and well-being. Wellness is a measure of the general health and well-being of the patient. Care and wellness affect the overall quality and performance of a healthcare facility.
  • patient fall shall be broadly understood to include falling to the ground or floor, falling into stationary or moving objects, falling back onto a support, or any other falling motion caused at least in part by gravity that may potentially cause physical injury and/or mental or emotional trauma.
  • rest and "resting” as it relates to a patient resting on a support shall be broadly understood as any situation where the support provides at least some counter action to the force of gravity.
  • a patient may "rest” on a support while lying still, sitting up, moving, lying down, or otherwise positioned relative to the support so long as the support acts in some way to separate a patient from the floor or surface upon which the support is itself positioned.
  • continuous monitoring and “continuous video data stream” include taking a series of images that may be spaced apart by any appropriate time interval so long as the time interval is sufficiently short that the system is not unduly hampered from initiating a response in time to prevent or mitigate a potentially dangerous event.
  • receiving and “inputting” in the context of a patient profile broadly includes any action by which a complete or partial patient profile, or any component thereof, is stored or entered into a computer system. This includes, but is not limited to, creating a profile and then storing or entering it into a computer, entering data which is used by the computer to generate a new patient profile, and/or storing or entering data used by a computer for updating a pre-existing patient profile already in the computer.
  • the invention may be practiced in network computing environments with many types of computer system and electronic device configurations, including, personal computers, desktop computers, laptop computers, hand-held devices, multi-processor systems, microprocessor-based or programmable consumer electronics, network PCs, minicomputers, mainframe computers, mobile telephones, PDAs, one-way and two-way pagers, Radio Frequency Identification (“RFID”) devices (e.g., bracelets, tags, etc.), global position (“GPS”) devices, and the like.
  • RFID Radio Frequency Identification
  • the invention may also be practiced in distributed system environments where local and remote computer systems, which are linked (either by hardwired data links, wireless data links, or by a combination of hardwired and wireless data links) through a network, both perform tasks.
  • Embodiments of the present invention may comprise or utilize a special purpose or general-purpose computer including computer hardware, as discussed in greater detail below.
  • Embodiments within the scope of the present invention also include physical and other computer-readable media for carrying or having computer-executable instructions or data structures stored thereon.
  • Such computer-readable media can be any available media that can be accessed by a general purpose or special purpose computer.
  • physical computer-readable media can comprise computer- readable storage media, such as, RAM, ROM, EEPROM, CD-ROM or other optical disk storage, magnetic disk storage or other magnetic storage devices, or any other medium which can be used to store desired program code means in the form of computer- executable instructions or data structures and which can be accessed by a general purpose or special purpose computer.
  • computer- readable storage media such as, RAM, ROM, EEPROM, CD-ROM or other optical disk storage, magnetic disk storage or other magnetic storage devices, or any other medium which can be used to store desired program code means in the form of computer- executable instructions or data structures and which can be accessed by a general purpose or special purpose computer.
  • a "network” is defined as one or more data links that enable the transport of electronic data between computer systems and/or modules and/or other electronic devices.
  • a network or another communications connection either hardwired, wireless, or a combination of hardwired or wireless
  • computer-readable media can comprise a network or data links which can be used to carry or store desired program code means in the form of computer-executable instructions or data structures and which can be accessed by a general purpose or special purpose computer.
  • Computer-executable instructions comprise, for example, instructions and data which cause a general purpose computer, special purpose computer, or special purpose processing device to perform a certain function or group of functions.
  • the computer executable instructions may be, for example, binaries, intermediate format instructions such as assembly language, or even source code.
  • the quality and performance monitoring systems and methods of the inventions are implemented by means of a computer system.
  • the computer system may include one or more centralized computers, referred to as a "facility master", and one or more localized computers, exemplified by one or more "in room controllers".
  • the various computers within the overall computer system divide up the task of receiving and analyzing data gathered from the overall patient monitoring system.
  • Figure 1 schematically illustrates the relationship between various components of an exemplary computerized system that can assist in monitoring the location, behavior and attributes of a plurality of patients, staff, assets and visitors at a healthcare facility.
  • a facility master computer system 101 receives data regarding patients, staff, visitors and assets from a variety of data collection clients 102 within and outside a facility. These include, for example, in room controller clients 102a, room associated clients 102b, support exiting monitoring clients 102c, care giver system clients 102d, facility patient, staff, visitor and asset tracking and location clients 102e, external facility patient, staff and asset tracking clients 102f, facility audio/visual clients 102g, external facility audio/visual clients 102h, and nursing station clients 102L
  • the data gathered or generated by the data collection clients 102 is sent to the facility master computer system 101 by means of communication pathways 103 for analysis, response, and report.
  • a localized computer such as an in room controller client and/or nursing station client 102i, may perform its own analysis of gathered data in order to compartmentalize or bifurcate the tasks provided by the various computers of the computer system in order to more efficiently use the computer system resources and reduce bottle necks.
  • the communication pathways 103 used to communicate gathered data from clients 102 to facility master computer 101 are exemplified by satellite 103 a, paging network 103b, PLC/BPL 103c, infrared network 103d, cable/telephone network 103e, cellular/PC S/UWB system 103f, IEEE 8O2.
  • xx wireless 103g e.g., Wi-Fi, Wi-Max, Zigbee, etc.
  • RFID/GPS 103h e.g., wireless and wired broadback internet 103i
  • public/private frame relay network 103j e.g., MPLS
  • data from facility master computer 101 can be periodically archived and/or analyzed at a backup facility monitoring master system 104 (e.g., via network 105).
  • FIG. 2 schematically illustrates an exemplary facility master computer system 200 that can be used to control and implement quality and performance monitoring systems and methods according to the invention.
  • Communications interface and protocol converter 201 can receive communications in accordance with one of the various protocols of Figure 1 and can convert the communication so as to be compatible with a processing system 202.
  • Storage 203 can store data used and produced by the processing system 202, examples of which include archived audio/video data 204a (e.g., archived in response to detection of an actionable event), profile data 204b (e.g., patient, staff and visitor data), and algorithms 204c used to process data and initiate appropriate responses and reports.
  • Memory 205 can be used to buffer and quickly access short term data used or generated by the processing system 201.
  • the facility master computer system 200 includes exemplary system components 206, which are modules or applications that process data gathered by data collection and processing devices (e.g., clients 102 of Figure 1). Some of these modules or applications can also be run, at least in part, by local computers, such as in room controller clients (not shown).
  • Figure 3 illustrates an exemplary computer-implement monitoring system 300 that monitors patients, staff, assets and visitors, assesses quality and performance, and manages event responses at a healthcare facility.
  • Monitoring system 300 includes a networked computer system 301, which is composed of a main computer system 301a (e.g., facility master) located in a data center 302, first peripheral computer system 301b (e.g., in room controller client) at patient location 303, and second peripheral computer system 301c at a central station (e.g., nurse's station).
  • a main computer system 301a e.g., facility master
  • first peripheral computer system 301b e.g., in room controller client
  • second peripheral computer system 301c at a central station (e.g., nurse's station).
  • the use of an in room controller computer to analyze data regarding a patient within a patient room is more particularly illustrated in Figures 1OA and 1OB, which are discussed more fully below.
  • Each computer system 301a-c can be connected to a network, such as, for example, a Local Area Network ("LAN”), a Wide Area Network (“WAN”), or even the Internet.
  • LAN Local Area Network
  • WAN Wide
  • Networked computer systems constitute a "computer system” for purposes of this disclosure.
  • Networks facilitating communication between computer systems and other electronic devices can utilize any of a wide range of (potentially interoperating) protocols including, but not limited to, the IEEE 802 suite of wireless protocols, Radio Frequency Identification (“RFID”) protocols, infrared protocols, cellular protocols, one-way and two-way wireless paging protocols, Global Positioning System (“GPS”) protocols, wired and wireless broadband protocols, ultra-wideband "mesh” protocols, etc.
  • RFID Radio Frequency Identification
  • GPS Global Positioning System
  • IP Internet Protocol
  • TCP Transmission Control Protocol
  • RDP Remote Desktop Protocol
  • HTTP Hypertext Transfer Protocol
  • STP Simple Mail Transfer Protocol
  • SMTP Simple Mail Transfer Protocol
  • a multi-platform, multi-network, multi-protocol, wireless and wired network architecture is utilized to monitor patient, staff, visitor, and asset locations and movements within a facility.
  • Computer systems and electronic devices may be configured to utilize protocols that are appropriate based on corresponding computer system and electronic device on functionality. For example, an electronic device that is to send small amounts of data a short distance within a patient's room can be configured to use Infrared protocols.
  • a computer system configured to transmit and receive large database records can be configured to use an 802.11 protocol.
  • Components within the architecture can be configured to convert between various protocols to facilitate compatible communication.
  • Computer systems and electronic devices may be configured with multiple protocols and use different protocols to implement different functionality. For example, an in room controller or other computer system 301b at patient location 303 can receive patient data via infrared from a biometric monitor and then forward the patient data via fast Ethernet to computer system 301a at data center 302 for processing.
  • Computer system 301c can be physically located at a central station 304 of a healthcare facility, e.g., a nursing station.
  • Provider 305 (a nurse or other healthcare worker) can be physically located near computer system 301c such that provider 305 can access electronic communications (e.g., alarm 320, video feeds, A/V communications) presented at computer system 301c.
  • Acknowledgment 321 can be sent to other computer systems 301a, 301b as appropriate to verify that alarm 320 was considered by provider 305.
  • Other healthcare providers such as providers 306 and 307, can be physically located in other parts of a healthcare facility. Healthcare providers can move between different locations (e.g., central station 304, patient rooms, hallways, outside the building, etc.).
  • healthcare providers 306, 307 can also carry mobile computer systems (e.g., laptop computers or PDAs 308 and 309) and other types of mobile devices, (e.g., pagers, mobile phones, GPS devices, or RFID devices). As providers 306, 307 move about a healthcare facility they can still access electronic messages (e.g., alarms) and send messages.
  • mobile computer systems e.g., laptop computers or PDAs 308 and 309
  • other types of mobile devices e.g., pagers, mobile phones, GPS devices, or RFID devices.
  • electronic messages e.g., alarms
  • Computer system 301b, storage device 310, sensors 312, and I/O devices 313 can be physically located at patient location 303, such as patient rooms, common areas, hallways, and other appropriate locations throughout or outside a healthcare facility.
  • patient location 303 can be a room of a patient 314.
  • Sensors 312 can include various types of sensors, such as, for example, video cameras, still cameras, microphones, motion sensors, pain scale sensors, pressure sensors, acoustic sensors, temperature sensors, heart rate monitors, conductivity sensors, RFID detectors, global positioning sensors (“GPS”), manual assistance switches/buttons, bed sensors, handrail sensors, mattress sensors, location sensors, oxygen tank sensors, support location sensors, call buttons, etc.
  • I/O devices 313 can also be sensors. Sensors and I/O devices can also send data to any appropriate computer system for processing and event detection, including either or both of computer systems 301a and 301c.
  • Some sensors 312 can be stationary (e.g., mounted at patient location 303) such that the sensors sense patient, staff, asset or visitor characteristics when within a specified vicinity of the sensor 312. For example, characteristics of a patient's gait can be observed when the patient walks by a video camera or closely spaced apart location sensors. A patient's gait can be monitored by measuring the time it takes a patient to move between localized points or zones. Other sensors can be mobile and move with a patient, provider, asset or visitor as they move about a healthcare facility. For example, a heart rate monitor can be attached to a patient and move with the patient to continuously monitor the patient's heart rate.
  • sensors 312 can provide input to computer system 301b.
  • Event detection module 316 can monitor and process inputs from sensors 312 to detect if a combination of inputs indicates the occurrence of a potentially actionable event 317. Detecting the occurrence of event 317 can trigger the transfer of various electronic messages from computer system 301b to other networked computers of the monitoring system 300. For example, electronic messages (alarm messages 320 regarding event 317) can be transferred to computer system 301c and/or mobile devices to alert health care providers of an actionable event 317.
  • electronic messages including patient data 322 can be transferred to other computer systems, such as computer system 301a, that process the patient data 322 (e.g., for refining patient profiles 324 stored in storage 326).
  • Alarm levels 325 can be sent to computer system 301b for use in determining whether an event 317 is actionable.
  • One or more of sensors 312 can be used to detect patient conditions or performance, such as support exiting, ambulation, changes in gait, social interaction, breathing, etc.
  • RFID zones separated by specified distances can be used to measure total ambulation distances and monitor speed or interruptions in speed as a patient walks.
  • Image analysis can determine the manner of a patient's walk and/or support exiting.
  • Computer system 301b can buffer sensor input at storage device 310 for some amount of time before discarding the input (e.g., video data).
  • computer system 301b can locally archive sensor input or data from I/O devices 908 at storage device 310 (e.g., A/V data 328). Buffered and/or archived sensor input can provide the basis for patient data 322 that is transferred to other computer systems.
  • Event occurrences can be detected in accordance with a risk profile associated with a monitored patient.
  • Patient profiles 324 either accessed directly from computer system 301a or stored locally in storage 310, can be used to analyze data from sensors 312.
  • alarm levels 325 can be used independently of a patient profile 324 by local computer system 301b.
  • a combination of inputs detected as the occurrence of an (actionable) event 317 for one patient is not necessarily detected as the occurrence of an (actionable) event 317 for another patient, and vice versa.
  • An actionable event can be detected when a specified alarm level for a given patient is satisfied.
  • Computer system 301a and storage device 326 can be physically located at data center 302.
  • Storage device 326 can store profiles (e.g., profiles 324a and 324b) for patients, staff and visitors.
  • Profile manager 330 can receive patient data 322 sent to computer system 301a (e.g., in response to a detected event) and refine a corresponding patient profile 324 in accordance with the patient data 322.
  • the patient's profile 324 can be modified to indicate changed risks, limits and alarm levels for the patient 314.
  • Risk profiles for a patient can be iteratively refined as patient data 322 for the patient 314 is received.
  • Algorithms for refining profiles can be recursed on a per iteration basis.
  • RFID transmitting devices are examples of a sensor 312, each having a unique signature such that an RFID transmitting device can be used to determine the location of a patient, provider, visitor or asset within a healthcare facility.
  • RFID transmitting devices can be non-removable, such as a bracelet or an adhesively attached pad, or removable, such as an employee badge.
  • Event Response Appropriate responses to an alert or alarm of an event can be provided through communication among and between computer systems. The difference between an alert and alarm is one of severity. If a trigger is minimally exceeded, an alert is activated. Typical alert responses include notification of event to the nursing station, establishment of A/V contact with patient, sounding of a tone, or verbally dispatching staff to investigate the situation. Significantly exceeding trigger value or ignored alerts will generate alarms, which typically activate an automatic PDA dispatching of staff, A/V contact and report generation.
  • Figure 4 illustrates a flow chart of a method 400 for managing a response to an actionable event in a healthcare facility.
  • Method 400 will be described with respect to the components and data in monitoring system 300 of Figure 3.
  • Method 400 includes an act 401 of accessing input from sensors monitoring a patient in accordance with a patient risk profile 324. Further discussion regarding patient profiles is set forth later.
  • Method 400 further includes an act 402 of detecting the occurrence of a patient related event.
  • event detection module 316 can detect the occurrence of event 317 for patient 314 (from the input of one or more of sensors 312).
  • an act 403 involves determining whether the detected event is an actionable event based on a patient risk profile 324 and/or alarm level 325.
  • Profile manager 330 can create alarm levels 325 which are sent to event detection module 316 of computer system 301b.
  • Alarm levels 325 can include one or more combinations of values for inputs from sensors 312 that indicate an actionable event based on profile 324. When one or more monitored values satisfy an alarm level 325, an actionable event is detected.
  • Method 400 includes an act 404 of sending an alarm to an appropriate healthcare provider.
  • computer system 301b can send an alarm 320, including event 317, to computer system 301c to communicate the occurrence of event 317 to healthcare provider 305.
  • act 406 involves receiving an alarm indicating an actionable event has occurred for the patient.
  • computer system 301c can receive alarm 320 indicating that event 317 (an actionable event) has occurred for patient 314 in accordance with profile 324 and/or alarm level 325.
  • Method 400 includes an act 407 of initiating a pre-determined response for assisting in the resolution of the actionable event.
  • computer system 301c can initiate a pre-determined response for assisting in resolution of event 317 in response to receiving alarm 320.
  • a response can include notifying an appropriate health care provider 306, 307 of the occurrence of the actionable event 317.
  • computer system 301c can present an audio and/or video indication of event 317 at central station 304, such as by means of a video display and speakers.
  • PDAs 308, 309 can receive alarm 320 and present an audio and/or video indication of event 317 to providers either or both of providers 306, 307.
  • Initiating a response 407 can include acknowledging the alarm.
  • computer system 301c can send acknowledgment 321 to either or both of computer systems 301a, 301b.
  • Sending acknowledgment 321 may result in establishing one or two-way communication between a healthcare provider and patient location 303 (e.g., using I/O devices 313).
  • provider 305 can input commands at computer system 301c to open communication from central station 304 to patient location 303.
  • providers 306, 307 can input commands at PDA's 308, 309 to open communication from their locations to patient location 303.
  • Communication can be used to send instructions to a patient, ascertain whether a patient is coherent, responsive to commands or instructions, etc.
  • a response 407 can also include a provider responding to the location of a patient. For example, in response to detecting that patient 314 has fallen, might fall, or otherwise requires assistance (e.g., by a patient controlled call device), provider 306 or 307 can respond to patient location 303.
  • RFID detectors at patient location 303 can detect an RFID transmitting device corresponding to provider 306 or 307 to verify response by provider 306 or 307 to a patient in need (e.g., comprising act 405 of method 400).
  • Expiration of a time interval can trigger some actionable events. For example, movement of bed bound patients to prevent bed sores or administration of medicine can be required at specified intervals.
  • Computer system 301b can send an alert to computer system 301c (or other appropriate computer systems) when a time interval expires or is about to expire.
  • stored patient profiles include risk profiles that include recursively refined patient alarms levels indicative of actionable events requiring a response.
  • Figure 5 is a flow chart that illustrates a computerized method 500 for maintaining and refining patient risk profiles and associated alarms levels for a patient at a healthcare facility. Method 500 will be described with respect to the components and data in monitoring system 300. Method 500 includes an act 501 of receiving collected patient data 322 related to a detected event 317 for a patient 314. For example, computer system 301a can receive patient data 322 related to event 317 for patient 314.
  • event 317 can be detected in accordance with a recursively refined risk profile 324 based on previously collected patient data for patient 314 (or on historical default data).
  • Patient data 322 is collected from a plurality of sensors 312 monitoring the patient 314 for various conditions that, when combined or considered individually, indicate occurrence of an event 317.
  • event 317 may be an actionable event, embodiments of the invention can also receive data in response to non-actionable events 317. For example, some events 317 may trigger refinement of a patient risk profile 324 without triggering an alarm 320.
  • Method 500 includes an act 502 of refining the patient risk profile 324 based on the collected patient data 322.
  • profile manager 330 can refine patient risk profile 324 based on patient data 322.
  • Profile manager 330 can adjust events 317 that are designated as actionable events for patient 314.
  • Profile manager 330 can iteratively refine profile 324 through recursive application of profile refinement algorithms.
  • Act 503 involves modifying alarm levels 325 for the patient 314 based on the further refined patient risk profile 324 such that an appropriate health care response can be provided for alarms indicative of actionable events.
  • profile manager 330 can adjust alarm levels 325 for patient 314 based on refinements resulting from patient data 322.
  • Alarm levels 325 can cause an appropriate healthcare provider to be notified when actionable events related to patient 314 occur.
  • Modified alarm levels can differ from previous alarm levels for patient 314 as a result of refinements to profile 324 to adjust risk.
  • an information feedback loop can be used to periodically or continually update patient profiles to fine tune the monitoring of patient conditions. For example, monitoring for bed exiting can begin with common preset values that are updated over time to create unique or verified information for each patient.
  • a decision algorithm can be used to adjust parameter values that will cause an actionable event. If an actionable event is appropriately detected (a positive), parameters can be made more restrictive such that the standard is lowered for detecting the actionable event in the future. For example, if a patient has fallen when exiting a bed, the values for detecting a bed exit can be made more restrictive. On the other hand, if an actionable event is inappropriately detected (a false positive), parameters can be made less restrictive such that the standard is raised for causing or detecting the actionable event in the future. When no actionable event is detected (a negative) for some time period, the parameters can also be made less restrictive such that the standard is raised for causing or detecting the actionable event in the future. D. Measuring Care and Wellness
  • Patient care and wellness can be monitored in a variety of ways. According to one embodiment, appropriate care and wellness according to certain parameters can be determined by monitoring the locations and/or movement of patients relative to one or more of caregivers, assets, visitors, other patients or fixed locations.
  • Figure 6 is a flow chart illustrating an exemplary method 600 for determining patient care and wellness.
  • Method 600 includes an act 601 of accessing stored patient profiles, which contain data that relate to one or more care or wellness parameters. In most cases, the profile data will differ as between at least some of the patients based on the specific attributes and needs of each patient, which are rarely identical for all patients.
  • Act 602 involves identifying one or more care or wellness parameters for each of a plurality of patients based on profile data contained in a corresponding patient profile.
  • care or wellness parameters include, but are not limited to, preventing unassisted bed exiting, measuring total ambulation of a patient in a given time period, assessing the level of patient socialization with others, detecting changes in patient gait, verifying the completion of treatments, exercises or care regimes, ensuring proper denture use, identifying periodic bed rolling for bed bound patients to prevent bed sores, responding to patient initiating emergency calls, preventing or mitigating patient harm, wandering or flight, ensuring proper nutrition, detecting breathing sounds, coughs, choking, etc. that may be indicative of impaired respiratory function, ensuring that patient ambulation occurs in association with prescribed assistive devices, and the like.
  • Act 603 includes determining one or more predetermined locations for each of a plurality of patients relative to one or more predetermined locations for at least one of a caregiver, asset, visitor, other patient or fixed location within or without the facility which are consistent with or that confirm or verify the satisfaction of the one or more care or wellness parameters identified in 602.
  • Many care and wellness parameters involve interactions between a patient and a caregiver, visitor, other patient or asset.
  • Tracking location can also include determining a time duration at a location or between multiple locations. Tracking the locations of each roughly indicates whether such interactions have actually occurred as prescribed. A patient who is never in the same location as the assigned individual or asset is unlikely to have had the required interaction for a care or wellness parameter to have occurred.
  • Tracking nutrition or preventing patient wandering or flight typically involves comparing patient movements (i.e., changing locations) relative to a fixed location in or out of a facility (e.g., cafeteria, security zone, exit, parking lot, etc.).
  • patients, staff, assets and visitors can be assigned an RFID device that can be tracked throughout a facility by means of an RFID detection system comprising a plurality of RFID detectors throughout the facility.
  • the location of the RFID detectors and assignment of RFID devices can be recorded and maintained in a computer system.
  • the RFID detectors notify the computer system of RFID devices that are currently being detected.
  • This computer system can correlate the location of each RFID device, as well as the duration of each RFID device at a specific location, and determine whether prescribed care and wellness routines or activities involving patients, staff, assets and/or visitors have been properly carried out.
  • the actual locations of the patient, caregiver, asset, visitor, other patients and/or fixed location are compared with the one or more predetermined locations relating to the one or more care or wellness parameters selected in 602 to determine if such care or wellness parameters have been satisfied.
  • the location, movement and/or duration of a patient, caregiver, visitor, or other patient can be monitored to determine if prescribed duties or activities are actually carried out as prescribed (e.g., performed within predetermined time guidelines or in a proper location, such as bathing, assisted feeding, turning of bed ridden patients to prevent bed sores, etc.).
  • Measures can be taken to enhance patient care or wellness and/or prevent or mitigate harm to a patient.
  • act 607 includes optionally initiating a response to prevent or mitigate harm in the case of an actual event, refining a patient profile and/or generating a care or wellness report.
  • staff can be alerted to prevent or mitigate patient wandering into unauthorized or forbidden areas (e.g., other patient rooms, facility exit, sensitive staff or equipment locations, etc.).
  • Patient wellness events e.g., social interactions, use of dentures, and proper nutrition
  • Modification of patient profiles can assist in more accurately predicting patient's needs and limits.
  • Generating a care and wellness report can assist providers or family members in ensuring enhanced care and wellness of the patient.
  • III. PROFILE MAINTENANCE AND REFINEMENT An important aspect of the inventive monitoring systems and methods for assessing and ensuring quality and performance is the use and refinement of patient specific profiles. Individual profiles permit the inventive patient monitoring systems and methods to more accurately assess the quality of care and wellness of each patient, as among a plurality of patients having a variety of different attributes and needs.
  • Staff and visitor profiles permit analysis of staff and visitor performance at a healthcare facility. Patient, staff and visitor profiles also permit the inventive systems and methods to better interpret conditions and actions of patients, staff and visitors that may lead to an actionable or triggering event. This reduces the incidence of false positives and false negatives and may reduce staff response times to critical clinical events.
  • Figure 7 schematically illustrates an exemplary computer system 700 containing networked computers and interrelated functional modules and peripheral data gathering systems for gathering information regarding a plurality of patients, staff and visitors at a healthcare facility and updating patient, staff and visitor profiles.
  • Computer system 700 more particularly includes a facility master 702 and in room controller 704. Of course, computer system 700 may include multiple in room controllers 704 and/or other computers as desired.
  • An RFID system interfaces directly with facility master 702 to provide data regarding the location and movements of patients, staff, assets and visitors.
  • An image analysis system 707 interfaces directly with in room controller 704 to provide data regarding the location, behavior and/or condition of a patient in a room.
  • the exemplary modules within facility master 702 include denture tracker 708, RFID zone security 710, contact tracker 712, ambulation tracker 714, emergency response 716, socialization 718, surveillance controller 720, mobile call button 722, and exterior GPS integration 724.
  • the in room controller 704 includes support exit module 726, which interprets data from the image analysis system 707. It will be appreciated that additional modules and data generating peripherals may be included as required to generate and process other data types.
  • the data that is processed by the foregoing modules shown in Figure 7 is used to update or refine patient profiles 730, staff profiles 732, and visitor profiles 734. Each of the data processing modules as well as exemplary information contained within patient profiles 730, staff profiles 732 and visitor profiles 734 will now be discussed in detail.
  • the support exiting module 726 is typically located within the in room controller 704.
  • the support exiting module 726 imports the most recently refined patient profile data relating to support exiting from facility master 702 so as to be locally stored at in room controller 704. Threshold issues include whether patient bed behavior is restricted and what time periods the restrictions are enforced. If support exiting behavior is not restricted for that patient or within a given time period, support exiting need not be monitored and responded to, at least within the given time period when the restriction is not in effect. Only if support exiting restrictions apply within a given time period does the support exiting module need to function to detect support exiting by the patient.
  • data from a plurality of data channels relating to various parts of the patients body are sampled with a frequency sufficiently high to obtain maximal event capture while minimizing unproductive hardware loads to populate support exiting algorithms (e.g., at 0.25 second intervals).
  • the data channels contain continuously flowing data regarding the locations and/or time durations at specified locations for the patient's head, arms, hands, legs and torso.
  • the algorithms for each patient are based on specific support exiting behavior for that patient based on the patient's profile. Examples of profile data relating to support exiting behavior and limits is set forth in a later section below.
  • the profile data includes or is used to create specific combinations of triggers relating to specific combinations of body part movements and/or time durations at specific locations, which are individually populated and flagged if satisfied. If the correct combination of triggers for that patient is met simultaneously, an actionable event is detected and a response is initiated.
  • the following data channels A through H have been assigned to measure the distance between a particular patient body part and a corresponding or related support (e.g., bed) zone and/or the time duration that a body part is in contact or proximity with the corresponding or related support zone.
  • a corresponding or related support e.g., bed
  • A head distance from head board (inches)
  • C* head distance left (inches)
  • An exemplary support exiting response includes: (1) initiating HIPAA notification to the patient of potential viewing of video feed of patient; (2) establishing an A/V link to a nursing station for nurse only viewing of the patient; (3) verifying nurse's presence at the nursing station within an established time response period by the nurse verifying or rejecting whether support exiting is actually occurring; (4) alternatively initiating an automatic response if nurse's presence not verified within time response period; (5) if nurse's response is "reject", with the option of mandatory staff approval, modifying the patient profile to loosen support exiting limits and notifying resident that viewing is concluded; (6) if nurse's response is "accept”, establishing "video stall” A/V link to delay support exiting, sending message to assigned PDA and closest nurse PDA of event, beginning nurse floor response time timer (finish when nurse RFID enters requested room), and modifying patient profile to confirm or tighten support exiting
  • the RFID zone security module 710 is typically located in the facility master 702. According to one embodiment, the RFID zone security module 710 scans the RFID zone locations of patients, staff and visitors at a facility at a frequency sufficiently high to obtain maximal event capture while minimizing unproductive hardware loads (e.g., at 1.0 second intervals). Using profile data, the module 710 classifies individual locations as one of: (1) safe, (2) warning or (3) violation. If the location classification is safe, no alerts or alarms are initiated.
  • a timer is initiated. If the location of the individual at issue does not downgrade to "safe" within a prescribed timer interval (e.g., "X" seconds), an alert is sent to the nursing station and a staff response timer mode is initiated. The timer runs until the individual is removed from any restricted RFID zones. The amount of elapsed time can be used to assess staff performance.
  • a prescribed timer interval e.g., "X” seconds
  • an alert is sent to the nursing station and possibly security, and a staff response timer mode is initiated.
  • the timer runs until the individual is removed from any restricted RFID zones.
  • the amount of elapsed time can be used to assess staff performance.
  • nursing station staff can visually and/or verbally instruct the patient or visitor to vacate the restricted area through the use of an A/V interface.
  • a security zone report can be generated every 24 hours if requested.
  • the box below is a grid that illustrates various danger zone values surrounding a building exit, with the lower numbers representing geographic zones that are farther away from the exit, and higher numbers representing geographic zones that are closer to the exit.
  • the danger zone values can be used to calculate a present flight risk level for each of a plurality of patients as they move toward the exit, which is next to danger zone 8.
  • a patient of known normal flight risk might be assigned an initial flight risk score of 10.
  • a patient having a known high flight risk level might be given an initial score of 5. The lower the score, the higher the flight risk.
  • the initial flight risk score is modified by subtracting the present danger zone value.
  • the patient's current flight risk score is reduced to 9. Entering danger zones of equal or greater value results in further reductions in the current flight risk score.
  • An alert of possible flight risk and A/V intervention may be triggered, for example, if the flight risk score falls to below a predetermined threshold (e.g., below 4). An alarm is triggered if the flight risk score falls to 0 or below (i.e., a negative number) and direct intervention to prevent or mitigate actual flight is initiated. If, after entering a danger zone with a given value, the patient turns around and enters a danger zone having a lower value, the flight risk score can be increased to reflect the lessened flight risk.
  • a predetermined threshold e.g., below 4
  • the ambulation tracker module 714 is typically located in the facility master 702. According to one embodiment, the ambulation tracker module 714 measures the total ambulation distance for each patient and staff member by determining the total number of RFID zones occupied by each individual during each 24 hour period and multiplying that value by the RFID zone size (e.g., 3 feet). Daily ambulation values are buffered to generate weekly averages. Alerts may be generated when daily values differ from the historical average by more than 50%. The overall trend for weekly averages can be monitored to determine the existence of increases or declines in ambulation. Ambulation reports and be generated for patients, staff and visitors every 24 hours if requested. Patient health, staff performance and visitor behaviors can be assessed using ambulation values.
  • the RFID zone size e.g., 3 feet
  • ambulation tracker module 714 polls patient profiles to determine which patients require ambulation assistance devices (e.g., walker, wheelchair or crutches). If so, the module 714 also tracks the location of any assigned devices for each patient using the associated RFID for the device. For the subset of patient requiring ambulation devices, determining whether any patient moves between RFID zones without detecting the presence of the assigned RFID tagged ambulation device. If separation of patient and ambulation device is determined, initiating an alert to the nursing station for possible intervention. Assistive ambulation device reports can be generated for patients every 24 hours if requested.
  • ambulation assistance devices e.g., walker, wheelchair or crutches.
  • the ambulation tracker module 714 can also detect potentially dangerous changes in patient gait by noting the time it takes for a patient to move between zones. For example, for a patient who normally passes between RFID zones at a particular pace, detecting substantial slowing or unusual movement between zones may be an indication of a serious medical condition.
  • the contact tracker module 712 is typically located in the facility master 702. The purpose is to determine and verify the existence of prescribed patient/staff contacts as they may relate to patient care and wellness and/or staff performance. According to one embodiment, the contact tracker module 712 polls a patient's profile for all elements that require patient/staff contact to be performed and/or delivered on a prescribed schedule. Examples include: (1) meals brought directly to rooms - denoted by RFID tagged meal tray; (2) special diet restrictions - denoted by RFID tagged meal tray; (3) assistance during mealtimes in room; (4) trips to cafeteria during meal times per day; (5) in-room therapy required without medical device; (6) in- room therapy required with one or more devices (i.e.
  • the RFID system 706 is monitored to count each of these events and compare to prescribed standards set within each patient profile. The time period of patient/staff interaction should be measured and compared to pre-set minima and maxima. Alerts and alarms may be generated if an increasing degree of poor staff performance is detected. Data generated by the contact tracker module can be used to assess patient care and wellness and/or staff performance.
  • the socialization module 718 is typically located in the facility master 702. The purpose is to determine the degree of patient socialization as it may relate to patient care and wellness.
  • the socialization module 718 analyzes RFID monitored patient movements and behaviors and generates either a (+) or (-) influence on a numeric value that represents each patient's socialization factor (PSF).
  • PSF may normally begin at a default value 5 and increase to a maximum of 10 and decrease to a minimum of 1 depending on patient activities. High, low or changing PSF are an objective measure of patient wellness.
  • Exemplary patient activities that count as a possible (+) PSF influencing element include: (1) visitors visiting patient's room; (2) assisted exits of facility; (3) other patients to patient's room; (4) trips by patient to other patient's rooms; (5) time in common areas (e.g., cafeteria, courtyard, recreation rooms, etc.) when occupied by visitors other patients; (6) activation of "family plan” communication elements; (7) contact time with pets (e.g., "canine therapy”); and (8) time/trips to facility courtyard area.
  • time in common areas e.g., cafeteria, courtyard, recreation rooms, etc.
  • Exemplary patient activities that count as a possible (-) PSF influencing element include: (1) consecutive hours in room alone; (2) missed meals; (3) repetitive ambulation behavior (e.g., walking back-and-forth or in circles); and (4) decreased levels of daily ambulation. Drastic decreases in PSF below previous values or an RSF below a critical minimal limit (e.g., 2) may result in the generation of alerts and alarms. Periodic socialization reports for each patient can be generated to assess patient wellness and/or staff or visitor performance (e.g., letters can be sent to relatives requesting more visits). 6. Surveillance Controller Module
  • the surveillance controller module 720 is typically located in the facility master 702. According to one embodiment, the surveillance controller module 720 monitors RFID, motion detection, video cameras and/or door beam tripping data to detect the entrance of staff, patients, or visitors into a patient's room or other private zone. Upon authorized entry by individuals into a patient's room, as detected using assigned RFID devices, the surveillance controller module 720 initiates A/V monitoring of the patient's room and triggers HIPAA appropriate patient notification. Upon room clearing of RFID signals (other than those which assigned resident) the the surveillance controller module 720 terminates A/V monitoring.
  • the surveillance controller module 720 Upon unauthorized entry by individuals into a patient's room, as detected by image analysis of video data, motion detection and/or door beam tripping data in the absence of properly assigned RFID devices, the surveillance controller module 720 initiates an alarm at the nursing station, security is notified, and an event response timer is initiated. The event response timer is terminated when authorized staff RFID enters the patient's room. The event response time can be used to assess staff performance.
  • the surveillance controller module 720 time stamps and attaches a patient identifier code to A/V surveillance files, which are stored for a prescribed number of days (e.g., 15 days). 7. Emergency Response Module
  • the emergency response module 716 is typically located in the facility master 702. The purpose is to notify staff and patients of a facility emergency and initiate an appropriate response to prevent or mitigate patient harm. Upon confirming the occurrence of a facility emergency (e.g., a fire), a qualified staff member inputs the location of the event into the system. The emergency response module 716 causes the system to send messages to all patient rooms with evacuation instructions. The emergency response module 716 tracks the evacuation of all patients and staff via tracking the movements of assigned RFID devices for each patient and staff member. Laptop PC and network access at locations external to the building can be provided for administration and emergency response personnel.
  • a facility emergency e.g., a fire
  • a qualified staff member inputs the location of the event into the system.
  • the emergency response module 716 causes the system to send messages to all patient rooms with evacuation instructions.
  • the emergency response module 716 tracks the evacuation of all patients and staff via tracking the movements of assigned RFID devices for each patient and staff member. Laptop PC and network access at locations external to the building can be provided for administration and emergency response personnel
  • the mobile call button module 722 is typically located in the facility master 702. Patients and staff wear RFID bracelets that include a manual call button that allows for manual activation of a secondary RFID transmitter during emergency situations.
  • the mobile call button module 722 determines who triggered the alert and where the individual is located.
  • the mobile call button module 722 polls the assigned patient profile for a list of most critical medical conditions.
  • the mobile call button module 722 transmits information regarding the call for help and any most critical medical conditions to the closest staff PDA for response and starts response timer mode.
  • the mobile call button module 722 determines if A/V communication is supported in the location of the emergency, and if so, establishes an A/V link between the location and a nursing station.
  • nursing station staff inputs whether or not an actual emergency occurred and the patient's profile is updated to note inappropriate emergency call button usage (e.g., ordering room service, using it for social calls, horseplay, etc.).
  • the external GPS integration module 724 is typically located in the facility master 702.
  • the external GPS integration module 724 allows for hand off of patient tracking from the RFID system 706 to GPS when residents travel into an exterior courtyard region of the facility not equipped with RFID zone sensors and/or in cases of patient wandering or flight.
  • Patient movement toward a courtyard can be determined by a patient assigned RFID device entering zones leading to the courtyard.
  • the external GPS integration module 724 polls the patient profile for privilege or limit information, including: (1) courtyard privileges for the patient; (2) courtyard time of day restrictions; (3) courtyard time duration outside limits; (4) courtyard maximum outside temperature limits; (5) courtyard minimum outside temperature limits; and (6) the assigned GPS transmission code for that patient. If conditions are not met for courtyard access, the module 724 causes system to alert the nursing station and being a response timer. If conditions are met for courtyard access, then start courtyard duration timer.
  • the denture tracker module 708 is typically located in the facility master 702. According to one embodiment, the denture tracker module 708 ensures that prescribed denture cleaning schedules are maintained. By means of denture embedded RFID devices, track the time period between denture RFID occupying RFID zone dedicated to denture cleaning station. Cleaning dentures too often or too infrequently can be noted in an appropriate report. Tracking proper cleaning of dentures is a measure of patient care and wellness.
  • the denture tracker module 708 ensures a proper match between an upper denture, lower denture, and the patient. It does so by tracking the locations of patients and corresponding dentures. For example, the denture tracker module 708 may determine whether a denture RFID that is changing zones ⁇ i.e., moving) belongs to the patient moving through equivalent RFID zones. If not, the module 708 sends an alert nursing station and generates a report. Other assets can be tracked and matched with assigned patients in similar fashion.
  • the type of data contained in a patient profile can be selected, populated and modified as required depending on any desired care and wellness criteria and/or learned information.
  • the following patient profile is merely one example of a suitable profile for use in collecting and processing data by the modules described above. It is given by way of example, not by limitation.
  • Each line represents an independent inquiry that can be analyzed using one or more computer-monitored data channels.
  • Data may be static or dynamic. Dynamic data can either by altered automatically or manually.
  • S Static Parameter
  • AD Automatically Dynamic Parameter
  • the type of data contained in a staff profile can be selected, populated and modified as required depending on any desired quality or performance criteria and/or learned information.
  • Staff performance will typically relate in some way to providing patient care and wellness and may differ based on specific attributes, assignments and/or rights of each staff member.
  • the following staff profile is merely one example of a suitable profile for use in collecting and processing data by the modules described above. It is given by way of example, not by limitation.
  • Each line represents an independent inquiry that can be analyzed using one or more computer-monitored data channels. Data may be static or dynamic. Dynamic data can either by altered automatically or manually.
  • AD Automatically Dynamic Parameter
  • MD Manually Dynamic Parameter
  • AD % of total work time spent with patients
  • the type of data contained in a visitor profile can be selected, populated and modified as required depending on any desired performance criteria and/or learned information. Visitor performance may relate to attribute and rights of each visitor and also patient care and wellness.
  • the following visitor profile is merely one example of a suitable profile for use in collecting and processing data by the modules described above. It is given by way of example, not by limitation.
  • Each line represents an independent inquiry that can be analyzed using one or more computer-monitored data channels.
  • Data may be static or dynamic. Dynamic data can either by altered automatically or manually.
  • AD Automatically Dynamic Parameter
  • MD Manually Dynamic Parameter 1. identification number (drivers license #) - xxxxxx, S
  • Figure 8 illustrates a flow chart of a method 800 for maintaining and refining stored profiles for patients, staff and visitors at a healthcare facility.
  • Method 800 includes an act 801 of storing an initial profile for each of a plurality of patients, staff or visitors at a facility based on at least one of specific personalized information for each patient, staff or visitor, or general information common to more than one individual.
  • the patient profiles may include at least one of an alarm level for use in triggering an actionable event, a treatment regimen for the patient, or wellness measurement for the patient.
  • the staff and visitor profiles may include initial information relating to staff and visitor performance as it may relate to the care or wellness of patients.
  • Method 800 includes an act 802 of receiving collected data relating to each of the patients, staff or visitors at the facility.
  • the data can be collected using one or more sensors, I/O devices, cameras or computers positioned within the facility that detect or provide data regarding movements by patients, staff, visitors and assets.
  • Act 803 involves refining the profile of a patient based on the collected data in order to modify at least one of an alarm level, care or wellness parameter, or a treatment regimen for the patient.
  • the patient profile can be updated by way of an information feedback loop in which potentially actionable events are confirmed or denied through human intervention.
  • stored patient profiles are risk profiles that include recursively refined patient alarms levels indicative of actionable events requiring a response.
  • method 800 includes an act 804 of refining staff and/or visitor profiles based on collected data relating to staff and/or visitor performance, which will typically relate in some way to ensuring or gauging patient care and wellness.
  • FIG. 9 is a diagram that schematically illustrates an exemplary computer-controlled system 900 for patient monitoring, more particularly with respect to potential patient support exiting, detecting a position and/or movement of a patient that is predictive of support exiting, obtaining human verification of actual support exiting, and intervening if support exiting is confirmed.
  • the patient monitoring system 900 includes a patient room 902 containing a bed 904 or other support and a patient 906 resting thereon at least some of the time.
  • One or more overhead cameras 908 may be provided that provide an aerial view of patient 906 together with one or more side or lateral view cameras 910.
  • the overhead camera 908 is especially useful in monitoring lateral (i.e., side-to-side) and longitudinal (i.e., head-to-foot) patient movements, although it may also monitor other movements.
  • the lateral view camera 910 is especially useful in monitoring longitudinal and up and down movements, although it can monitor other movements.
  • the lateral view camera 910 and/or other camera can be positioned to monitor and record a patient room door 912 or other access point (e.g., to detect and/or record entry and/or exit of personnel, other patients, or visitors).
  • the bed 904 may include markings (e.g., decals) (not shown) that assist in properly orienting the cameras to fixed reference points. The markings may assist in determining the distance between a fixed point and body part.
  • the room 902 also includes an audio-video interface 914 that can be used to initiate one-way and/or two-communication with the patient 906.
  • A/V interface 914 is mounted to a wall or ceiling so as to be seen by patient 906 (e.g., facing the patient's face, such as beyond the foot of the patient's bed).
  • the A/V interface 914 may include any combination of a video monitor (e.g., flat panel screen), a camera mounted adjacent to the video monitor (e.g., below), one or more microphones, and one or more speakers.
  • the A/V interface may form part of a local computer system (e.g., an "in room controller") that controls the various sensors and communication devices located in the patient room.
  • video data streams 916A and 918 A are sent from cameras 908 and 910, respectively, to a computer system 920 for analysis.
  • the computer system 920 is an in room controller associated with the patient room 902.
  • each patient room has its own in room controller
  • patient monitoring and analysis of multiple patients can be simultaneously performed in parallel by dedicated in room controller computers.
  • a remote computer such as a central facility master computer.
  • the computer system 920 may therefore include multiple networked computers, such an in room controller, facility master, and other computers.
  • the computer system 920 includes or has access to a data storage module 922 that includes patient profiles 924 (e.g., stored and updated centrally in the facility master and used locally by and/or uploaded to the in room controller).
  • a comparison module 926 of the computer system 920 analyzes the video streams 916A, 918A and, using one or more algorithms (e.g., that may be known in the art or that may be developed specifically for this system), determines the location and/or any movements and/or duration of body part action of patient 906. This information is compared to patient specific profile data 925 from a patient profile 924 that corresponds to patient 906. In the absence of predicted support exiting or other triggering event, video streams 916A and 918 A are typically not viewed by any human but are actively deleted or simply not stored or archived. This helps protect patient privacy.
  • the computer system 920 sends an alert 928 to a central station 930 (e.g., nursing station) that patient 906 may be attempting to exit support 904.
  • a central station 930 e.g., nursing station
  • at least one of video streams 916B, 918B from cameras 908, 910 and/or a modified video stream (not shown) from computer system 920 is sent to an A/V interface 934 at central station 930 for human verification of actual patient support exiting.
  • the patient 906 is advantageously notified of potential active viewing by staff to satisfy HIPAA regulations (e.g., by a chime, prerecorded message, e.g., "camera is actively viewing", or visual indication, e.g., flashing or illuminated words, TV raster pattern).
  • a provider 932 views the video stream(s) from patient room 902, determines whether the patient 906 is in fact preparing to exit the bed 904 or other support, and provides verification input 936 to an appropriate interface device (not shown) at station 930, which sends verification 938 to the computer system 920. Verification 938 may either confirm or reject actual patient support exiting.
  • the patient may be notified of this fact by, e.g., a tone or pre-recorded message ("active viewing is terminated").
  • the in room controller, facility master, or other appropriate module or subsystem component within computer system 920 sends a notification 940 to a responder 942 to assist the patient 906.
  • Notification 940 may be sent by any appropriate means, including an audio alert using a PA system, a text and/or audio message sent to a personal device carried by responder 942, a telephone alert, and the like.
  • a tracking system 943 that interfaces or communicates with the computer system 920 (e.g., the facility master) may be used to identify a caregiver 942 who is assigned to patient 906 and/or who is nearest to patient room 902. In this way, direct physical assistance to patient 906 who may be attempting to exit support 904 can be provided quickly and efficiently.
  • one- or two-way A/V communication 944 can be established between provider 932 at central station 930 and patient 906 (e.g., by means of A/V interfaces 914 and 934).
  • provider 932 to talk to patient 906 in order to provide instructions or warnings regarding support exiting, possibly to distract patient 906 and delay or prevent support exiting (e.g., "why are you getting out of bed?").
  • support exiting e.g., "why are you getting out of bed?"
  • responder 942 may more easily intervene prior to actual support exiting so as to prevent or better mitigate potential harm to patient 906.
  • a pre-recorded audio and/or A/V message 946 may alternatively be sent to A/V interface 914 in patient room 902 instead of direct A/V communication between provider 932 and patient 906.
  • the computer system 920 may initiate an automated response in order to prevent or mitigate potential harm to patient 906. This may include one or both of sending notification 940 to a responder 942 regarding possible support exiting and/or sending a pre-recorded message 946. Verification 938, whether confirmation or denial of actual support exiting, can also be used to update the patient profile 924 corresponding to patient 906. Updated profile data 948 based on one or more support exiting events can be input or stored at data storage module 922.
  • the patient profile 924 can be updated to confirm the accuracy of the initial profile 924. In some cases, limits within the patient profile 924 may be tightened to be more sensitive to movements and/or durations of actions that have been confirmed to correlate with and accurately predict support exiting. This may be done manually by authorized personnel or automatically by the computer system 920. If, on the other hand, a particular behavior is determined to falsely predict support exiting by patient 906, the patient profile can be updated to note incidences of such false positives. Limits within the patient profile 924 can be loosened or eliminated relative to movements that have been found not to correlate with support exiting by patient 906.
  • limits within the patient profile 924 can be established and/or tightened in an effort to eliminate false negatives of support exiting by patient 906. Updating the profile 924 of patient 906 to more accurately predict support exiting and reduce or eliminate false positive and false negatives substantially increases the reliability of the patient monitoring system as compared to conventional systems that do not distinguish between and among support exiting habits or behaviors of different patients.
  • the foregoing is an example of the use of an information feedback loop to refine a patient profile.
  • video data 950 that is the same as, or which may be derived from, one or both of video streams 916, 918 can be stored within an archive 952.
  • Archive 952 may comprise any storage media known in the art of video recording and storage, examples of which include hard drives, optical storage devices, magnetic tapes, memory devices, and the like.
  • the triggering event need not be support exiting but may be entry into the patient's room by staff, other patients or visitors, or activation of the emergency call button by the patient.
  • Figures 1OA and 1OB schematically illustrate various embodiments of exemplary patient room configurations used in monitoring a patient and providing one or more responses.
  • an exemplary patient room 1000 which includes a patient 1002, a bed 1004 or other support upon which the patient 1002 rests at least some of the time.
  • the patient 1002 may wear or carry a mobile electronic tracking device, such as an RFID bracelet or other device 1006.
  • RFID device 1006 is specially assigned to patient 1002 and provides verification when patient 1002 is located in room 1000. This facilitates using the correct patient profile when interpreting movements of patient 1002.
  • One or more overhead cameras 1008 are positioned above the bed 1004 and so as to provide an aerial (e.g., bird's eye) view of patient 1002.
  • One more side or lateral view cameras 1010 are positioned to the side of patient 1002 to provide a different data stream for determining the patient's position and/or movements.
  • Camera 1010 may have a direct or peripheral view of a door 1018 or other entrance to room 1000.
  • An in room controller computer (IRCC) 1012 which may be a local computer located in room 1000, analyzes video data streams generated by cameras 1008, 1010.
  • a flat panel monitor 1014 e.g., high definition
  • controller mounted camera 1016 e.g., and optionally other devices such as microphones and speakers (not shown) are interfaced with IRCC 1012.
  • the IRCC 1012 is used to determine the location of the patient's body, including specific body parts, by interpreting video data streams generated by one or more of the cameras 1008, 1010, 1016 and comparing relative distances between the patient's body and fixed locations (e.g., the patient's head and the headboard of the bed, the patient's arms and legs relative to respective left and right bedrails, the height of the patient's torso relative to the bed, etc.).
  • a changing body part position indicates movement of that body part.
  • the IRCC 1012 continuously or periodically compares the location and/or any movements of the patient's body or portion thereof with locations and movements that are predictive of patient bed exiting by that patient as contained in the patient's profile of bed exiting behaviors. Whenever the unique singular or combination of positions, movements, and/or duration of positional actions is detected that is consistent with a unique bed exiting behavior, an appropriate response is initiated.
  • the flat panel video monitor 1014 can provide multiple functions, including providing normal television programming, recorded programming requested by the patient 1002, video feeds to remote locations (such as loved ones or staff who wish to communicate with patient 1002 remotely), emergency situation instructions and special messages (e.g., patient alerts).
  • the controller mounted camera 1016 provides a direct facial view of the patient and, in combination with video monitor 1014, facilitates two- way A/V communication between patient 1002 and individuals outside room 1000. As shown, the camera 1016 may also have a direct view of door 1018 or other room entrance to monitor entry and exit of individuals (e.g., staff 1042, other patients or visitors) from room 1000. Camera 1016 may also have a view of bathroom door 1020 to monitor movement of patient 1002 to and from the bathroom.
  • a standard motion sensor integrated with conventional video cameras may provide motion detection means for detecting room entry or exiting activity.
  • Video data from room viewing video cameras, such as camera 1016, or combinations of room based video cameras, may also be utilized by image analysis programs running within in-room controller 1012 to detect and count the number of individuals within the room. When combined with in-room counts of residents, staff and visitors from RFID data, this information can be used to detect unauthorized entry into patient's room and therefore positively impact patient wellness.
  • the room 1000 may include other auxiliary devices, such as bedside call button 1022, patient pain scale interface 1023, bathroom call button 1024, microphones/speakers 1025, and bathroom motion sensor 1026.
  • Call buttons 1022, 1024 may comprise those known in the art.
  • the pain scale interface 1023 allows a patient to indicate to the monitoring system (e.g., IRCC 1012, facility master, and/or nursing station) the patient's current pain level (e.g., on a scale of 1 to 10, with 1 being the least and 10 being the most pain).
  • Motion sensor 1026 can be used, e.g., in combination with camera 1016, call button 1024 and/or microphones/speakers 1025, to determine whether a patient 1002 requires further assistance while in the bathroom.
  • An RFID grid set up throughout the room can be used to monitor the position and/or movements of the patient 1002 when not resting on the bed 1004 and also the position and/or movements of staff 1042, other persons such as patients, friends, family or other visitors, and assets (not shown).
  • Figure 1OB illustrates an exemplary patient room 1000 which includes a patient 1002, a bed 1004 or other support upon which the patient 1002 rests at least some of the time, and various other devices used to monitor the patient and the patient's room 1000.
  • the patient 1002 may wear or carry a mobile electronic tracking device, i.e., mobile patient location client 1006.
  • mobile patient location client 1006 This allows a facility master computer to identify and track the location of the patient 1002 by means of electronic tracking systems known in the art.
  • Patient location client 1006 may be a conventional RFID device (e.g., bracelet) and may be equipped with a patient emergency call or panic button (not shown) as known in the art.
  • Mobile patient location client 1006 is specially assigned (and attached) to patient 1002 staying in patient room 1000.
  • Client 1006 provides verification that patient 1002 is actually located in room 1000. This facilitates using the correct patient profile when interpreting movements of patient 1002 rather than those of another patient.
  • High risk motion clients 1008A and 1008B may be positioned on either side of bed 1004, thus providing two separate data streams for interpretation of the patient's position and/or movements.
  • Side cameras IOIOA and IOIOB are positioned on either side of patient 1002 to provide additional data streams for interpretation of the patient's position and/or movements.
  • At least one of cameras IOIOA and IOIOB may have a direct or peripheral view of a door 1011 or other entrance to room 1000.
  • An in room controller client (IRCC) 1012 which can be a local computer located in or near room 1000, at least partially controls motion clients 1008 A and 1008B, cameras IOIOA and IOIOB, and other electronic devices in room 1000. IRCC 1012 also analyzes video data generated by cameras 1008, 1010 in order to identify behavior of patient 1002 that may be predictive of support exiting.
  • Other electronic devices include an in-room A/V interface client 1014, which can be used to establish one- or two-way communication with patient 1002, patient care client 1016, external A/V client 1018 (e.g., in a hallway), bathroom interface 1020 (e.g., call button, microphone and/or speaker), and manual patient interface client 1022 (e.g., a call button, pain scale dial, etc.).
  • the room is shown having a chair 1024 or other furniture (e.g., wheel chair), upon which visitors or even the patient may rest at least some of the time.
  • the monitoring system can be used to detect potential support exiting by patient 1002 of chair/furniture 1024 in addition to bed 1004.
  • High risk motion clients 1008 A and 1008B can monitor a patient's movements in bed 1004 and/or chair or other furniture 1024.
  • a patient's movement on a bed or other support can be monitored through a grid monitoring system ("GMS") that identifies patient vertical and horizontal movements that may be indicative of an attempt to exit the furniture.
  • GMS grid monitoring system
  • the time a body part is located within a critical zone and/or changes in position and/or changes in speed can all be determined.
  • the GMS can also utilize pressure, temperature, and other distributed sensors located within a bed or other furniture or directly attached to a patient.
  • Inputs from the various clients and sensors in room 1000 can be provided to the IRCC 1012 and/or facility master (not shown).
  • any of cameras 101OA, IOIOB or 1020, as well as motion clients 1008 A and 1008B can monitor a patient's position and/or movements within room 1000 when the patient is not resting on a bed 1004, chair 1024 or other support located in room 1000.
  • room controller client 1012 and/or a facility master Upon activation of the GMS or other high risk motions clients, in room controller client 1012 and/or a facility master utilizes patient management software to initiate and establish responsive actions. For example, upon detecting activities that predict an unattended support exit, in room controller 1012 and/or a facility master can establish a real time A/V connection with a central station (e.g., nurse's) and/or one or more mobile caregiver clients (e.g., PDAs carried by responder caregivers).
  • a central station e.g., nurse's
  • mobile caregiver clients e.g., PDAs carried by responder caregivers.
  • room controller client 1012 and/or a facility master can activate external A/V client 1018 (e.g., an alarm in a hallway) and/or initiate archiving of data from one or more of high risk motion clients 1008 A and 1008B, and cameras 1010A, IOIOB and 1020 upon the occurrence of a support exiting event or other pre-established triggering event.
  • external A/V client 1018 e.g., an alarm in a hallway
  • Figure 1OB further depicts a provider location client 1026 (e.g., an RFID device), a provider PDA 1028, a provider ID tag 1030 (e.g., an RFID device), other facility ID tag 1032 (e.g., an RFID device), and/or diagnostic equipment 1034 which have entered room 1000.
  • a provider location client 1026 e.g., an RFID device
  • provider PDA 1028 e.g., an RFID device
  • a provider ID tag 1030 e.g., an RFID device
  • other facility ID tag 1032 e.g., an RFID device
  • diagnostic equipment 1034 which have entered room 1000.
  • Each of these devices can communicate with IRCC 1012 and/or a system-wide tracking system that communicates direct to a facility master computer (not shown) via various appropriate protocols (e.g., RF, IEEE 802.11 group, IEEE 802.15.4, etc.).
  • IRCC 1012 can update pertinent patient information, such as, for example, provider ID, other personnel ID or diagnostic equipment and time of
  • patient room 1000 may be networked with other components including, for example, subscription clients (e.g., subscription A/V web browser interface client 1040 and subscription A/V voice and video over IP client 1042), which are connected to in room controller client 1012 by means of network 1044.
  • subscription clients e.g., subscription A/V web browser interface client 1040 and subscription A/V voice and video over IP client 1042
  • Subscriber clients 1040 and 1042 can be located at or external to a healthcare facility. Thus, providers in diverse locations can be notified of actionable events occurring inside patient room 1000.
  • Figure HA illustrates an alternative embodiment for detecting patient support exiting behavior comprising a light beam matrix system 1101, which may be used instead of or in addition to one or more cameras used to determine patient position and/or movements.
  • Exemplary light beam matrix system 1101 includes a patient 1102 resting on a bed 1104 or other support.
  • a plurality of light transmitters 1160 are positioned at one side of bed or other support 1104 and generate first beams of light 1162, which are detected by corresponding first light receivers 1164.
  • a plurality of second light transmitters 1166 are positioned laterally relative to first light transmitters 1160 and generate second beams of light 1168, which are detected by corresponding second light receivers 1170.
  • Beams of light 1162, 1168 may comprise IR, visible or UV wavelengths.
  • First and second beams of light 1162, 1168 may be positioned above the patient
  • the light beams are spaced apart at intervals ranging from six (6) inches to two (2) feet (e.g., at one (1) foot intervals).
  • Interrupting and/or resuming one or more beams of light may be indicative up upward and/or downward movement(s).
  • Sequentially interrupting and/or resuming one or more of first light beams 1162 may be indicative of lateral movement(s).
  • Sequentially interrupting and/or resuming one or more of second light beams 1162 may be indicative of longitudinal movement(s).
  • a computer system interprets data generated by the light beam matrix. Continuous light detection by the light sensors may be interpreted as a series of Is (or Os) in computer language. Any interruption or blocking of a light beam corresponds to a series of Os (or Is) in computer language and is indicative of a body part being positioned between one or more particular light transmitters and detectors. Because bed exiting, for example, involves at least some lifting of the patient's body (e.g., to get over bed rails or pass through a narrow passage in a bed rail), actual lifting of the patient's body will typically block or interrupt at least one light beam.
  • the computer can determine which parts of the patient's body have raised and/or moved. Sequentially interrupting multiple beams typically indicates movement (i.e., lateral, longitudinal, upward and/or downward depending on which sequence of beams are interrupted).
  • the patient's movements as detected by the light beam matrix and interpreted by the computer system, are compared to a patient profile of positions and/or movements that are predictive of support exiting by that patient. If potential patient support exiting is detected, an appropriate response can be initiated.
  • FIG HB illustrates an alternative embodiment for detecting patient support exiting behavior comprising a small zone RFID grid system 1103, which may be used instead of or in addition to one or more cameras used to determine patient position and/or movements.
  • Exemplary RFID grid system 1103 includes a patient 1102 resting on a bed 1104 or other support.
  • the patient's body may be equipped with any appropriate number of RFID devices that are located so as to detect patient positions and/or movements associated with support exiting (e.g., right RFID wrist device 1106A, left RFID wrist device 1106B, right RFID ankle device 1106C, left RFID ankle device 1106D, and neck RFID device 1106E).
  • Each RFID device can be separately encoded to represent a specific body part of the patient to distinguish between positions and movements of the different body parts.
  • the RFID grid system 1103 includes a three-dimensional grid of small, cube-like RFID zones defined by a plurality of RFID detectors positioned along lateral zone boundaries 1180, longitudinal zone boundaries 1182, and elevation zone boundaries 1184. The closer together the RFID detectors, the finer the detection of patient position and/or movement. According to one embodiment, the RFID detectors are spaced apart at intervals ranging from six (6) inches to two (2) feet (e.g., at one (1) foot intervals). The grid of RFID zones is able to detect three-dimensional patient position and/or movements as approximated by the positions and/or movements of the RFID devices 1106 worn by the patient in or through the RFID zones.
  • a computer system interprets data generated by the small zone RFID grid as it detects the position and/or movement of the RFID devices 1106 attached to the patient 1102. Depending on which RFID zone is occupied by a specific RFID device and/or which RFID device(s) may be moving between RFID zones, the computer can determine the position and/or location of corresponding body parts of the patient. If potential patient support exiting is detected, an appropriate response can be initiated.
  • Figure 12 is a flow chart that schematically illustrates an exemplary method 1200 of monitoring a patient in order to detect support exiting and initiate a response in the event of predicted support exiting.
  • a first act or step 1201 involves creating or obtaining a plurality of patient profiles, each containing personalized information relating to support exiting behavior for each patient.
  • Examples of known bed exiting behaviors that have been observed as being used by one or more patients include, but are not limited to: (1) bed slide method (e.g., sliding down towards the bottom of the bed); (2) right side rail roll method; (3) left side rail roll method; (4) torso angle up and leg swing right method; (5) torso angle up and leg swing left method; (6) torso angle up and upper body roll right method; and (7) torso angle up and upper body roll left method.
  • a given patient may utilize one or more of the foregoing methods or a variation thereof, but typically one will dominate. Other support exiting behaviors are possible and can be accounted for where relevant.
  • Figure 13 A schematically illustrates a normal resting position of a patient lying flat on a bed.
  • Figures 13B-13E schematically illustrate positions associated with various bed exiting positions, movements or behaviors.
  • Figure 13B roughly depicts the position of a patient that has engaged in the bed slide method of bed exiting.
  • a notable feature is the distance between the patient's head and the pillow or headboard.
  • Figure 13C roughly depicts left and right side rail roll methods in which the patient's body moves to the side or left side rail preparatory to bed exiting.
  • Figure 13D illustrates the torso up and leg swing left method of bed exiting, which is characterized by upward movement of the torso coupled with movement of the left leg toward the edge of the bed.
  • the torso up and right leg swing method is simply the mirror image of that shown in Figure 13D.
  • Figure 13E illustrates the torso up and upper body roll left method, which is characterized by the patient's torso moving upward and the patient's body rolling to the left.
  • the torso up and upper body roll right method would be the mirror image of that shown in Figure 13E.
  • Each patient profile contains one or more spatial parameters or limits associated with the one or more support exiting behaviors that are known for each patient.
  • the spatial parameters or limits relating to bed exiting may include data points pertaining to one or more of the seven common bed exiting behaviors noted above.
  • Image parameters relating to exiting of other supports can be tailored to behaviors that are typical for patients exiting such supports.
  • Patient profiles may include idiosyncratic information that is specific to a particular individual (e.g., base on patient height, weight, speed of movement, length of limbs, number of operable limbs, and/or personal habits of position and/or movement while support exiting).
  • a spatial parameter that corresponds to the bed slide method of bed exiting is the distance from a head feature to the top of the bed (e.g., headboard) (see Figure 13B).
  • Spatial parameters corresponding to the side rail roll methods (left or right) for bed exiting include: (a) the torso positioned primarily to the right or left of the bed and (b) the hand and/or arm on or over (i.e., covering or blocking the view of) the left or right bed rail for a given period of time (see Figure 13C).
  • Spatial parameters corresponding to the torso up and leg swing methods (left or right) of bed exiting include: (a) the head elevated from a flat position and (b) right or left legs and/or feet breaking a vertical bed edge plane (see Figure 13D).
  • Spatial parameters corresponding to the torso up and upper body roll methods (left or right) of bed exiting include: (a) the head elevated from a flat position; (b) torso positioned primarily to the right or left portion of the bed; and one or both of (C 1 ) the left or right hand and/or arm on or over (i.e., covering or blocking the view of) the left or right bed rail for a given period of time and/or (c 2 ) the head breaking a vertical plane of the left or right side rail (see Figure 13E).
  • time of duration of a limb or body part at a specified location relative to a critical region of the support may also play a roll in determining bed or other support exiting.
  • a second act or step 1202 of method 1200 involves associating a corresponding patient profile with the particular patient being monitored.
  • the use of RFID or other patient identification and tracking devices may assist in identifying which patient profile corresponds to the patient being monitored. For example, if a patient moves from room to room over time, different monitoring equipment in the various rooms can all monitor the same patient at different times, while comparing patient position and/or movements with specific profile data for that patient, because the patient is associated with a patient identification and tracking device that emits a uniquely encoded signal. Such association may alternatively be made (e.g., entered manually into a computer) by hospital staff whenever a patient occupies a particular room.
  • a third act or step 1203 of method 1200 involves continuously monitoring a patient resting on a support by capturing a series of images of the patient and surroundings and sending a data stream (e.g., video feed) to a computer system for analysis.
  • a data stream e.g., video feed
  • both motion video recording devices and still photo devices are capable of taking individual frames, the distinction between the two is simply the speed with which individual frames are taken (i.e., the time interval between frames).
  • both motion video recording devices and still photo devices can be used to send a continuous data stream to the analyzing computer system.
  • a fourth act or step 1204 of method 1200 involves analyzing the data stream (e.g., frames of video data) to determine patient position and/or movement and comparing them to patient profile data relating to the support exiting behavior of that patient.
  • data stream e.g., frames of video data
  • patient profile data relating to the support exiting behavior of that patient.
  • computer-implemented analysis of position and/or movement may be carried out using a grid monitoring system (GMS), which compares the relative position of one or more body parts in relation to stationary background objects, such as critical or predefined support zones.
  • GMS grid monitoring system
  • the use of patient specific profiles enables the computer system to more accurately detect and distinguish between behaviors that are indicative or predictive of patient support exiting and those which are not as compared to methods that are not patient specific but utilize the same sets of analytical limits for all patients.
  • Step 1205 includes initiating an appropriate response in an attempt to prevent or mitigate harm to the patient.
  • Exemplary responses include sending an alarm and/or video feed to a nursing station, alerting the patient of potential viewing, establishing one- or two-way communication between the patient, sending a pre-recorded message to the patient, sending notification to a nearby caregiver who can provide direct physical intervention, sounding an alarm, and the like. It may even be appropriate in some cases to activate an automated restraint device that is able to keep the patient from exiting the support until a caregiver is able to arrive and provide assistance.
  • the method optionally includes an act or step 1206 of refining the patient's profile to adjust one or more alert triggers to reflect monitored bed exiting behavior.
  • the profile may be progressively refined to reflect a patient's historical support exiting behavior as monitored over time. This would be expected to decrease the overall number of false positives and false negatives, which would tend to increase the accuracy and efficiency of responding to potential support exiting behaviors on the part of the patient.
  • Figure 14 is a flow chart that schematically illustrates an exemplary method or sub-routine 1400 of generating and updating a patient profile for support exiting behavior.
  • a first act or step 1401 involves setting initial support exiting limits based on information learned from or about the patient (e.g., as a result of a patient or relative completed questionnaire, observation by a qualified provider, general defaults, and the like). It is understand that the initial limits are advantageously modified as more information is gathered over time regarding a patient's actual support exiting habits while at one or more facilities.
  • a second act or step 1402 includes actually monitoring a patient while resting on a support as discussed above and then either confirming or rejecting an alert of predicted patient support exiting. From one or more confirmations or rejections of predicted bed exiting, additional information regarding the specific support exiting habits of the patient can be learned. Act or step 1402 may form part of an information feedback loop for recursively refining patient profile data.
  • a third act or step 1403 includes manually or automatically revising or updating previously set support exiting limits in order to more accurately predict support exiting behavior by patient in question.
  • the computer system may appropriately alter patient profile data and limits relating to bed exiting so long as it does not substantially increase the risk of unassisted support exiting.
  • patient profile data and limits relating to bed exiting may be altered manually by a qualified individual or committee who analyzes data generated during predicted support exiting events. Limits can be established initially, or pre-existing limits may be tightened or loosened, in response to incidences of false positives and/or false negatives relative to support exiting.
  • Figure 15 is a flow chart that schematically illustrates an exemplary method or sub-routine 1500 of responding to predicted patient support exiting. In a first act or step
  • a computer system finds a correlation between a patient's location and/or movements and predetermined limits for that patient contained in or derived from a patient specific profile.
  • a second act or step 1502 involves a computer initiating a response by sending an alert to both the patient's room (to warn of a breech in privacy) and a nursing station along with a live (i.e., real time) video feed of the patient's room to the nursing station.
  • a staff member at the nursing station confirms or rejects the predicted support exiting upon viewing the live video feed of the patient's room.
  • a computer- controlled tracking system locates an unoccupied staff member who is assigned and/or near the patient's room and instructs the staff member to assist the patient.
  • Figure 16 is a flow chart that schematically illustrates an exemplary monitoring and response decision chart 1600 relative to bed exiting.
  • the patient is continuously or periodically monitored, and the patient's position and/or movements are analyzed. As long as positions and/or movements predictive of bed exiting are not detected, monitoring continues. Of course, monitoring may also continue even after bed exiting is predicted in order to send a live video feed to a central station and/or determine an escalation of events.
  • an alert is sent to a nursing station as well as a live video feed of the patient for verification of actual bed exiting. Prior to or at the same time, an alert is sent to the patient's room of potential third party viewing of the patient (e.g., to protect patient privacy). If no verification (i.e., confirmation or denial) is sent to the computer system within a predetermined time period, an automated response is initiated. If verification is sent, the computer determines whether bed exiting is confirmed or denied. If bed exiting is denied, the computer system resumes normal patient monitoring. If bed exiting is confirmed, further intervention is initiated.
  • the escalation of intervention to assist a patient who is in the process of bed exiting may include establishing one- or two-way communication between the confirming staff member and the patient. It may also include sending an alert to a nearby or assigned staff member for direct physical intervention. An RFID or other tracking device can be used to verify that physical intervention was carried out as prescribed.
  • the assisting caregiver may press a confirm button on a patient care interface device connected to the computer system, or the caregiver may provide oral confirmation to the staff member at the nursing station.
  • the staff member at the nursing station may view the live video feed from the patient's room to confirm successful intervention. If intervention is confirmed, the response is complete. If intervention is not confirmed, the response may include sending one or more additional alerts to other nearby staff members for direct physical intervention.
  • Figure 17 a flow chart which illustrates an exemplary method 1700 for responding to patient alerts and providing assistance for a patient in need thereof.
  • Method 1700 will be described with respect to the components and data in system architecture 300 ( Figure 3).
  • Method 1700 includes an act 1701 of providing the patients of a facility with RFID devices, each of which is associated with a specific patient, emits a signal that permits tracking of the specific patient, and includes an alert button that, when actuated, sends an alert associated with the specific patient. For example, as previously described, a patient staying in a room at the facility can be provided with a mobile patient location bracelet specifically assigned to the patient.
  • Method 1700 includes an act 1702 of receiving one or more signals emitted by one or more RFID devices so as to track the location of patients throughout the facility.
  • sensing devices 312 within the facility can receive an RFID signal, an alarm signal, etc. from each mobile patient location bracelet.
  • Each patient can be tracked and located in patient rooms and also throughout hallways, other common areas, and dangerous or otherwise restricted areas of a healthcare facility.
  • Signals can be detected by RFID sensors throughout a facility and relayed to computer systems that process the signals to generate appropriate electronic messages and notifications.
  • Method 1700 includes an act 1703 that includes, in response to receiving an alert from an RFID device associated with a patient in need of assistance, identifying the location of the patient, accessing relevant information from the patient's profile, and initiating a response (e.g., a patient specific response that can optionally be tailored based on information in the patient's profile, such as the most critical medical conditions of the patient requesting help). For example, in response to receiving an alert from a mobile patient location bracelet, the location of an assigned or nearby caregiver can be identified and appropriate physical intervention can be initiated. The intervention may be different for different patients based on their respective profiles and medical conditions.
  • a response e.g., a patient specific response that can optionally be tailored based on information in the patient's profile, such as the most critical medical conditions of the patient requesting help.
  • a response e.g., a patient specific response that can optionally be tailored based on information in the patient's profile, such as the most critical medical conditions of the patient requesting help.
  • a response e.
  • a computer system that processes the signal can generate an electronic message or notification that is sent to one or more other electronic devices corresponding to assigned or nearby healthcare providers (e.g., to computer system 301c, PDA 309, PDA 309, etc.)
  • patient profiles can be updated to count the number of times each patient has initiated an authorized alert (e.g., an actual physical or medical emergency) versus an unauthorized alert (e.g., ordering room service, socializing, horseplay, etc.).
  • an authorized alert e.g., an actual physical or medical emergency
  • unauthorized alert e.g., ordering room service, socializing, horseplay, etc.
  • patient profiles data can be accessed and a predetermined or specially tailored response initiated (e.g., in the case of patients with special needs).
  • Figure 18 is a flow chart that illustrates an exemplary method 1800 for selectively archiving a video recording of a patient in response to a triggering event. Method 1800 will be described with respect to the components in a typical patient room (e.g., room 1000 of Figures 1OA and 10B).
  • a typical patient room e.g., room 1000 of Figures 1OA and 10B.
  • Method 1800 includes an act 1801 of generating a video data stream of a patient's room at a healthcare facility, wherein the video data stream is continuously buffered and then deleted in the absence of a triggering event such that the buffered and deleted video recording is normally never viewed by an individual in order to protect patient privacy.
  • a computer system can use a circular buffer of a specified size such that after a prescribed amount of time (e.g., 3 to 5 minutes) older video data is overwritten by new video data within the buffer.
  • a prescribed amount of time e.g. 3 to 5 minutes
  • an in room controller and/or facility master can make a temporary or buffered video recording of received video data from one or more cameras positioned within a patient's room.
  • Method 1800 includes an act 1802 of selectively archiving the temporarily buffered video data stream in response to a triggering event so as to permit later viewing of the archived video recording.
  • Video archival data can be stored at a healthcare facility or offsite.
  • the archived video recordings are typically merely a back-up that helps verify the occurrence of a prescribed event and do not constitute a "medical record" within the meaning of HIPAA or other applicable statutes.
  • the triggering event may comprise at least one of:
  • Image analysis used to monitoring patient support exiting can also be used to monitor patient bed rolling behaviors.
  • skin breakdown, pressure sores and ulceration are important clinical concerns.
  • staff may be scheduled to relieve skin pressure points on the patient's body by manually turning the patient periodically (e.g., every 2, 3 or 4 hours as prescribed). This turning schedule disturbs the patient's natural sleep pattern, increases the risk of injuring the patient during the process, and adds significantly to staff workload.
  • the in-room image analysis system By utilizing the in-room image analysis system to detect, record, count and report patient roll-overs, it will be possible to alert staff as to which patients require manual rolling over for each time period and which do not. Benefits to the patient include better sleep quality and less opportunity for tissue injury due to manual turning. Benefits to the staff include reduced work load by only turning those patients who actually require it. To visually verify that a patient has self-turned adequately during a time period, the system may allow for accelerated viewing of the buffered or recorded time period with real- speed viewing of detected turning events. D. Patient/Staff Contact Time Tracker
  • Contact data may be drawn from data available via RFID, GPS and/or advanced image analysis systems deployed about a medical facility. Contact may be defined on a facility by facility basis and can vary from patient and staff within the same room to patient and staff within the same and/or adjacent RFID zone. Patient profiles may contain minimum requirements for contact hours per day for each staff category. At predetermined times during the day, alerts may be issued to the staff through monitors at a central nursing station that indicate which patients are proportionally in deficit of their mandated contact hours. Alarms may be issued when contact hour deficits reach critical limits. Reports may be generated to reflect the facility's compliance with mandated patient/staff contact time requirements. VL EXEMPLARY SYSTEM LOGIC By way of example only and not by limitation, the inventive systems and methods for patient, staff and visitor monitoring and response may employ the following exemplary logic:
  • Bed Exit Has Occurred (6) is absent and RFID [F] is positive Action Taken For Positive Exit Alert check RFID for Staff presence at Nursing Station o if no - then send pre-recorded message, alarm sent to closest shell staff RFID PDA, document, and go to Patient Profile Update o if yes - then request Alert Verification or Alert Rejection from staff
  • An actively recording camera is STOPPED from further recording by one of the following Actions:
  • the only detectable RFID signal is [F] and conditions (6) or (7) were not the source triggers
  • Shell O X (the present location of the Resident in need)
  • Shell 1 X-I, X+l, X+MM, X-MM, X+MM+1, X+MM-1, X-MM+1, X-MM-I
  • Shell 2 X-2, X+2, X-2+MM, X-2-MM, X-2+2MM, X-2-2MM, X+2+MM,

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Abstract

La présente invention concerne des procédés, des systèmes et des progiciels utilisés dans le suivi de patients, de personnel, de ressources et de visiteurs au niveau d'un établissement, pour la mise en oeuvre d'une réaction pour empêcher ou atténuer un dommage, et évaluer et assurer la qualité et l'efficacité globale, et préciser des profils de patients individuels, de personnel et de visiteurs. Une pluralité de capteurs à travers l'établissement fournissent une pluralité de flux de données concernant les lieux où se trouvent des patients par rapport à au moins un(e) soignant(e), à d'autres patients, à des visiteurs ou à un ou plusieurs sites fixes. Un système informatique analyse les flux de données et détermine la localisation et/ou les déplacements des patients par rapport aux soignants, à d'autres patients, à des visiteurs ou à un ou plusieurs sites fixes. Un profil contenant des données individuelles pour le patient est utilisé pour la détection précise d'événements, comprenant des événements aptes à être déclenchés, la réalisation complète de soins prescrits, l'évaluation du bien-être des patients, et, dans certains cas, la fourniture de réactions sur mesure à des événements détectés. Des profils de patients sont périodiquement affinés au moyen d'une boucle de rétroaction d'information afin d'assurer une prédiction précise d'événements (aptes à être déclenchés), de fournir des soins et d'assurer un niveau souhaité de bien-être de patients. Des profils de personnel et de visiteurs sont utilisés pour mesurer la performance du personnel et des visiteurs au niveau d'un établissement.
PCT/US2006/061796 2005-12-09 2006-12-08 Procédés et systèmes pour le contrôle de la qualité et de l'efficacité d'un établissement de santé WO2007081629A2 (fr)

Priority Applications (2)

Application Number Priority Date Filing Date Title
EP06849199A EP1969554A4 (fr) 2005-12-09 2006-12-08 Procédés et systèmes pour le contrôle de la qualité et de l'efficacité d'un établissement de santé
CA002604214A CA2604214A1 (fr) 2005-12-09 2006-12-08 Procedes et systemes pour le controle de la qualite et de l'efficacite d'un etablissement de sante

Applications Claiming Priority (14)

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US74837605P 2005-12-09 2005-12-09
US60/748,376 2005-12-09
US79904106P 2006-05-10 2006-05-10
US60/799,041 2006-05-10
US83566206P 2006-08-04 2006-08-04
US60/835,662 2006-08-04
US82663406P 2006-09-22 2006-09-22
US60/826,634 2006-09-22
US11/561,263 2006-11-17
US11/561,263 US20070132597A1 (en) 2005-12-09 2006-11-17 Methods and systems for monitoring patient support exiting and initiating response
US11/608,074 2006-12-07
US11/608,125 US7761310B2 (en) 2005-12-09 2006-12-07 Methods and systems for monitoring quality and performance at a healthcare facility
US11/608,074 US7786874B2 (en) 2005-12-09 2006-12-07 Methods for refining patient, staff and visitor profiles used in monitoring quality and performance at a healthcare facility
US11/608,125 2006-12-07

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WO2007081629A3 (fr) 2008-04-10
CA2604214A1 (fr) 2007-07-19
EP1969554A4 (fr) 2011-05-04

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