Patent Grant
11464410
This disclosure relates to systems, devices, and methods with applications in, for example, hospitals and other patient care facilities.
Hospitals, nursing homes, and other patient care facilities typically include patient monitoring devices at one or more bedsides in the facility. Patient monitoring devices generally include sensors, processing equipment, and displays for obtaining and analyzing a medical patient's physiological parameters. Physiological parameters include, for example, respiratory rate, SpO2 level, pulse, and blood pressure, among others. Clinicians, including doctors, nurses, and certain other medical personnel use the physiological parameters obtained from the medical patient to diagnose illnesses and to prescribe treatments. Clinicians also use the physiological parameters to monitor a patient during various clinical situations to determine whether to increase the level of medical care given to the patient.
Patient monitors capable of measuring pulse oximetry parameters, such as SpO2 and pulse rate in addition to advanced parameters, such as HbCO, HbMet and total hemoglobin (Hbt) and corresponding multiple wavelength optical sensors are described in at least U.S. patent application Ser. No. 11/367,013, filed Mar. 1, 2006 and entitled Multiple Wavelength Sensor Emitters and U.S. patent application Ser. No. 11/366,208, filed Mar. 1, 2006 and entitled Noninvasive Multi-Parameter Patient Monitor, both assigned to Masimo Laboratories, Irvine, Calif. (Masimo Labs) and both incorporated by reference herein. Further, noninvasive blood parameter monitors and corresponding multiple wavelength optical sensors, such as Rainbow™ adhesive and reusable sensors and RAD-57™ and Radical-7™ monitors for measuring SpO2, pulse rate, perfusion index, signal quality, HbCO and HbMet among other parameters are also available from Masimo Corporation, Irvine, Calif. (Masimo).
Advanced physiological monitoring systems may incorporate pulse oximetry in addition to advanced features for the calculation and display of other blood parameters, such as carboxyhemoglobin (HbCO), methemoglobin (HbMet) and total hemoglobin (Hbt), as a few examples. Advanced physiological monitors and corresponding multiple wavelength optical sensors capable of measuring parameters in addition to SpO2, such as HbCO, HbMet and Hbt are described in at least U.S. patent application Ser. No. 11/367,013, filed Mar. 1, 2006, titled Multiple Wavelength Sensor Emitters and U.S. patent application Ser. No. 11/366,208, filed Mar. 1, 2006, titled Noninvasive Multi-Parameter Patient Monitor, assigned to Masimo Labs and incorporated by reference herein. Further, noninvasive blood parameter monitors and corresponding multiple wavelength optical sensors, such as Rainbow™ adhesive and reusable sensors and RAD-57™ and Radical-7™ monitors for measuring SpO2, pulse rate, perfusion index (PI), signal quality (SiQ), pulse variability index (PVI), HbCO and HbMet among other parameters are also available from Masimo.
A medical system is disclosed. The medical system can include a patient monitoring device, a patient information system, and a mobile application. The patient monitoring device can be coupled to a patient to monitor one or more physiological parameters. The patient information system can allow the patient to communicate with a clinician. The patient information system can also provide information regarding schedules, medications, and procedures to the patient. The mobile application can be communicatively coupled with the patient monitoring device and the patient information system. The mobile application can allow a clinician to receive, view, and send information to or from the patient monitoring device and the patient information system.
Various embodiments will be described hereinafter with reference to the accompanying drawings. These embodiments are illustrated and described by example only, and are not intended to limit the scope of the disclosure.
A physiological monitoring system of certain embodiments includes one or more patient monitoring devices connected to a shared network using open architecture communications standards. The patient monitoring devices of certain embodiments include a physiological monitor coupled with a network interface module. The physiological monitor includes one or more sensors and a sensor processing module for processing signals from the sensors. The network interface module receives physiological information from the sensor processing module and transmits this information over the shared network. The network interface module may connect to a variety of physiological monitors. In addition, the network interface module of various implementations is a portable bedside device assigned exclusively to one medical patient.
In certain embodiments, the network interface module facilitates establishing a network connection directly with end users over the shared network. These end users, including doctors, nurses, and other hospital staff, may receive physiological information, alarms, and alerts from the network interface module on an electronic device, such as a pager, PDA, laptop, computer, computer on wheels (COW), or the like.
Referring to
The physiological monitoring system 100 includes a plurality of bedside devices, e.g., patient monitoring devices 110. The patient monitoring devices 110 of various embodiments include sensors 102, one or more sensor processing modules 104, and a communications module, e.g., network interface module 106. In the depicted embodiment, two patient monitoring devices 110 are shown. One patient monitoring device includes one set of sensors 102, one sensor processing module 104, and one network interface module 106. The other patient monitoring device 110 includes two sets of sensors 102, two sensor processing modules 104, and one network interface module 106.
In certain embodiments, each patient monitoring device 110 is used by one medical patient. The patient monitoring devices 110 form a network of patient monitoring devices 110, each of which can communicate with clinicians and other end users over a shared network, including a hospital network 126 and network interfaces to the Internet 150.
One or more sensors 102 of the patient monitoring device 110 are attached to a medical patient. These sensors 102 may include ECG sensors, acoustic sensors, pulse oximeters, and other types of sensors. The sensors 102 obtain physiological information from a medical patient and transmit this information to the sensor processing module 104 through cables 103 or through a wireless connection (not shown). In certain embodiments, the physiological information includes one or more physiological parameters or values and waveforms corresponding to the physiological parameters.
The sensor processing module 104 receives physiological information from the sensors 102. The sensor processing module 104 of certain embodiments includes a circuit having a processor, input ports for receiving the physiological information, software for processing the physiological information in the processor, an optional display, and optionally an input device (e.g., a keyboard). In addition, the sensor processing module 104 contains one or more output ports, such as serial ports. For example, an RS232, RS423, or autobaud RS232 (serial interface standard) port or a universal serial bus (USB) port may be included in the sensor processing module 104.
In certain embodiments, the sensor processing module 104 generates waveforms from signals received from the sensors 102. The sensor processing module 104 may also analyze single or multiparameter trends to provide early warning alerts to clinicians prior to an alarm event. In addition, the sensor processing module 104 in certain embodiments generates alarms in response to physiological parameters exceeding certain safe thresholds.
Example alerts include no communication with pulse oximeter, alarm silenced on pulse oximeter, instrument low battery (pulse oximeter), and transmitter low battery. Example alarms include SpO2 levels and alarms, high and low SpO2, high and low PR, HbCO level and alarms, HbMET level and alarms, pulse rate and alarms, no sensor, sensor off patient, sensor error, low perfusion index, low signal quality, HbCO, HbMET, PI trend alarm, and desat index alarm.
The network interface module 106 in the depicted embodiment is connected to one or more sensor processing modules 104 through one or more connectors 108, which may be serial connectors corresponding to the serial ports in the sensor processing modules 104. Dashed lines on the connector 108 indicate that the network interface module 106 of certain embodiments is not permanently attached to the sensor processing modules 104. In alternative embodiments (not shown), however, the network interface module 106 is contained within a sensor processing module 104.
The network interface module 106 in various implementations includes a processor, an input port (such as a standard RS232 serial port), a network output port such as an Ethernet port, and software which enables the network interface module 106 to act as a network-communications enabled device. In addition, the network interface module 106 includes a storage device 114, which may be included within the network interface module 106 or attached separately to the network interface module 106.
The network interface module 106 manages the connectivity overhead for initiating and maintaining connectivity with end user devices over the shared network. In certain embodiments, the network interface module 106 manages connectivity by acting as a microserver or web server. In such instances, the network interface module 106 is a network connection enabled device. As a web server, the network interface module 106 establishes direct connections to the Internet 150, such that an end user may access web pages stored on the storage device 114 of the network interface module 106. In one embodiment, the network interface module 106 therefore does not require a separate server for connecting to the Internet 150. In one embodiment, the network interface module 106 connects to the Internet 150 directly through a modem, such that the connection 122 includes a modem. In managing connectivity over the shared network, the network interface module 106 may also perform security management functions, such as user authentication.
In certain embodiments, the network interface module 106 sends data over the shared network through an access point 124 or other wireless or wired transmitter. Alternatively, the network interface module 106 may communicate physiological information directly to end users over the Internet 150. End users such as clinicians carrying notifier devices, e.g., end user devices 128, 152 connected to the hospital WLAN 126 may receive real-time viewing of physiological patient parameters and waveforms on demand or in the event of an alarm or alert. Real-time or slightly delayed transmission of physiological information in certain embodiments comports with standards for alarm latency in compliance with Joint Commission on Accreditation of Healthcare Organizations (JCAHO) standards for effective alarm response. The network interface module 106 of certain embodiments therefore adds functionality equivalent to a central nurses' station.
In certain embodiments, the network interface module 106 performs context management. In one embodiment, context management includes associating context information with physiological information to form a contextual data package. Context information may include several categories of information, including the categories of context information related to the network interface module 106, context information related to the medical patient, context information related to usage of the network interface module 106, and context information related to a network connection. Within one or more of these context categories, context information might include a patient name, a patients' unique hospital identification number, patient location, an identification number for a network interface module 106, time stamps for events occurring in the physiological monitoring system 100, environmental conditions such as changes to the state of the network and usage statistics of the network interface module 106, and identification information corresponding to the network link (e.g., whether the network connection is WiFi or Ethernet). In one embodiment, the context information in the contextual data package may include all of or any subset of context information from one or more of the context categories.
The network interface module 106 receives context information, for example, by a nurse entering the information in the network interface module 106 or from a server 136. In one embodiment, by receiving this information (including, e.g., patient identification number and location), the network interface module 106 becomes exclusively assigned to the medical patient. The network interface module 106 transmits or communicates the contextual data package to clinicians during an alarm or alert, upon clinician request, or on a scheduled basis. In addition, the network interface module 106 may transmit a continuous stream of physiological information to clinicians.
By optionally connecting to multiple sensor processing modules 104 in certain embodiments, the network interface module 106 is able to associate patient context information and other context information with multiple sensor processing modules 104. Consequently, context can be created for one or more sensor processing modules 104 in addition to context being created for the network interface module 106.
In addition to transmitting the contextual data package, the network interface module 106 in one embodiment stores the contextual data package in the storage device 114. The storage device 114 may be a flash memory, a hard disk drive, or other form of non-volatile or volatile memory. In certain embodiments the storage device 114 acts as a flow control buffer. The network interface module 106 uses the storage device 114 acting as a flow control buffer to perform flow control during communications, as explained more fully below in connection with
In some implementations, a server 136 may optionally be included in the physiological monitoring system 100. The server 136 in these implementations is generally a computing device such as a blade server or the like. In certain embodiments, the server 136 is an appliance server housed in a data closet. In other embodiments, the server 136 is a server located at a central nurses' station, such as a workstation server.
The server 136 receives contextual data packages from a plurality of network interface modules 106 and stores the contextual data package in a storage device 138. In certain embodiments, this storage device 138 therefore archives long-term patient data. This patient data may be maintained even after the patient is discharged. In storing patient data, the server 136 may act as an interface between the shared network and an external electronic medical record (EMR) system.
The server 136 may also store data concerning user interactions with the system and system performance metrics. Integrated into the server 136 of certain embodiments is a journal database that stores every alert and alarm or a subset of the alerts and alarms as well as human interaction in much the same way as an aviation “black box” records cockpit activity. The journal is not normally accessible to the clinical end user and, without technical authorization, cannot be tampered with. In addition, the server 136 may perform internal journaling of system performance metrics such as overall system uptime.
In one embodiment, the journaling function of the server 136 constitutes a transaction-based architecture. Certain transactions of the physiological monitoring system 100 are journaled such that a timeline of recorded events may later be re-constructed to evaluate the quality of healthcare given. These transactions include state changes relating to physiological information from the patient monitoring devices 100, to the patient monitoring devices 110, to the hospital WLAN 126 connection, to user operation, and to system behavior. Journaling related to the physiological information received from a physiological monitor in one embodiment includes recording the physiological information itself, recording changes in the physiological information, or both.
The server 136 in certain embodiments provides logic and management tools to maintain connectivity between network interface modules 106, clinician notification devices such as PDAs and pagers, and external systems such as EMRs. The server 136 of certain embodiments also provides a web based interface to allow installation (provisioning) of software rated to the physiological monitoring system 100, adding new devices to the system, assigning notifiers (e.g., PDAs, pagers, and the like) to individual clinicians for alarm notification at beginning and end of shift, escalation algorithms in cases where a primary caregiver does not respond to an alarm, interfaces to provide management reporting on the alarm occurrence and response time, location management, and internal journaling of system performance metrics such as overall system uptime (see, e.g.,
The server 136 in certain embodiments also provides a platform for advanced rules engines and signal processing algorithms that provide early alerts in anticipation of a clinical alarm. The operating system on the server 136 in one embodiment is Linux-based for cost reasons, though a Microsoft-based or other operating system may also be used. Moreover, the server 136 is expandable to include data storage devices and system redundancy capabilities such as RAID (random array of independent disks) and High Availability options.
In another embodiment (not shown), end user devices 128, 152 include one way POCSAG Pagers having a 2 line display with audible and vibrate mode, of suitable size and durability for severe mechanical environments typical of hospital general floor settings. In yet another embodiment, the end user devices 128, 152 include two way paging systems, such as Motorola Flex and WLAN pagers. One advantage of two-way paging is the ability to confirm message receipt and the ability to remotely silence alarms. Wireless PDAs may also be used by end users based on ruggedness and acceptable form factors as determined by an end user. An example of such a device is the Symbol Technology MC50 PDA/Barcode Scanner.
The hospital network 220 transmits physiological information and context information to clinician notifier devices, including pagers 240, PDAs 230, and the like. In certain embodiments, the hospital network 220 utilizes a server 250 to transmit contextual data packages to a page transmitter 242, which further transmits the data to one-way wireless pagers 240. An external interface 280 may be coupled with the server 250. The external interface 280 could include one or more of the following: enterprise paging, nurse call systems, wide area paging systems, enterprise clinical and patient information systems, and third party monitoring and surveillance systems.
Certain other devices 260, such as some patient monitoring equipment, are not network communications enabled devices. That is, these other devices 260 are unable to connect to a network unaided. In the depicted physiological monitoring system 200, example devices 260 that are not network communications enabled are connected to a network interface module 270. The network interface module 270 is connected to the non-network communication enabled other devices 260 through RS232 cables 264. Such a connection is a standardized serial connection found on many devices. Because the network interface module 270 has an RS232 port, the network interface module 270 can allow non-network communication enabled patient monitoring devices to connect directly to the hospital network 220 and also to the Internet.
Moreover, by connecting to one or more other devices 260 in some embodiments, the network interface module 270 is able to associate patient context information and other context information with one or more other devices 260. Consequently, context can be created for one or more other devices 260 in addition to context being created for the network interface module 270.
The network interface module 300 also communicates with a storage device 350. While in the depicted embodiment the storage device 350 is shown as separate from the network interface module 300, in some implementations the storage device 350 is part of the network interface module 300. In addition, though not shown, the network interface module 300 may include a processor for implementing communications program code. Similarly, though not shown, the network interface module 300 may include an input device for a nurse to input context information and a display for receiving output from the network interface module 300.
The network interface module 300 can be integrated into handheld, portable or stationary patient monitoring platforms or instruments or contained in an accessory package with an RS 232 input for general interface to such devices. In another embodiment, (not shown) active RFID tag capabilities are included with the network interface module 106, with the clinician devices (e.g., notifier devices), or with both so that either a patient or a clinician can be located when an event occurs or on request. When operating on a shared network, the network interface module 106 is also compliant with to the open architecture communications standards of IEEE 802.1X (security and authorization), IEEE 802.3 (Ethernet), and WiFi (IEEE 802.11 a, b, g, e, i wireless protocols).
A context management module 310 in the network interface module 300 manages context data. In one embodiment, the context management module 310 receives context information, such as the context information described in connection with
The context management module 310 associates the context information with physiological information received from a sensor processing module. In certain embodiments, the context management module 310 performs this association when an alarm condition occurs. In such instances, the context management module 310 may create a contextual data package including a snapshot of historical physiological information together with the context information. In other embodiments, the context management module 310 performs an association continuously, and the network interface module 300 sends continuous or scheduled contextual data packages to end users. In addition, the context management module 310 or other modules in the network interface module 300 store the contextual data package in the storage device 350.
The communications module 320 uses the network interface 304 to communicate with a network. In certain embodiments, the communications module 320 possesses the functionality of a web server. As a web server, the communications module 320 enables the network interface module 300 to communicate with a hospital network and the Internet directly, without using a server. Consequently, other devices such as physiological monitoring devices that are not network connection enabled may connect with the network interface module and thereby become network enabled. The network interface module 300 manages the connectivity overhead for initiating and maintaining connectivity, manages context information (e.g., any of the context information described above in connection with
In certain embodiments, the communications module 320 uses standard communications protocols to communicate with a network. Some examples of standard communications protocols include Ethernet, WiFi (WLAN), Bluetooth, and the like. By using standard communications protocols, the communications module 320 is able to send and receive data over a shared network or open network architecture. However, the communications module 320 may also be used on a proprietary network using proprietary protocols.
In embodiments where the network interface module 300 communicates over a shared network rather than a proprietary network, the network interface module 300 shares network resources with other devices on the network. In some cases, high-volume network traffic affects the reliability of network communications. Consequently, certain implementations of the network interface module 300 include a flow control module 330. The flow control module 330 verifies that transmitted data was received by an end user. In the event that the end user did not receive the data, the flow control module 330 resends the data stored in the storage device 350. In certain embodiments, the storage device 350 therefore acts as a flow control buffer.
A security module 340 manages user access to the network interface device 300 and to data stored in the storage device 350. In certain embodiments, the security module 340 determines whether a user attempting to connect to the network interface module 300 is authorized to do so. In one implementation, the security module 340 uses the standard IEEE.802.1X network access control protocol to manage authentication. The network interface module 106 in certain embodiments provides security and encryption to meet the Health Insurance Portability and Accountability Act (HIPAA) requirements.
In certain embodiments, the network interface module 300 incorporates all or a portion of the functionality specified by the IEEE 1073 standard and the most recent update to the IEEE 1073 standard, namely the IEEE 11703 standard, both of which are hereby incorporated by reference. In certain embodiments, the context management module 310, the communications module 320, the flow control module 330, and the security module 340 also incorporate functionality specified in the IEEE 1073 and 11703 standards. By using standard protocols, the network interface module 300 may be used to enable network communication for a wide variety of physiological monitoring devices.
The process 400 begins by receiving context information at 402. In one embodiment, a device such as a network interface module receives the context information once, such as in an initialization step. The process 400 then receives physiological information at 404. In certain embodiments, the process 400 continues to receive physiological information throughout the remaining steps of the process 400. Alternatively, the process 400 may receive physiological information 400 for a portion of the process 400.
At 405, the process 400 determines whether an alarm condition or alert has occurred. If an alarm condition or alert has occurred, the process 400 proceeds to 406. However, if an alarm condition or alert has not occurred, the process 400 loops back to 404. In one embodiment, the looping back of the process 400 to 404 represents that a network interface module continually receives physiological information until an alarm condition or alert occurs. In certain embodiments (not shown), the process 400 may continue to receive physiological information even when an alarm condition or alert occurs.
At 406 the process 400 prepares a contextual data package. The contextual data package may include context information and a snapshot of physiological information. In one embodiment, the snapshot of physiological information includes the physiological information that gave rise to an alarm or alert. In one embodiment, the snapshot of physiological information includes information both before and after the occurrence of an alarm or alert. The contextual data package is stored in a flow control buffer at 408.
At 410, the process 400 establishes a network connection. In one embodiment, establishing a network connection at 410 includes connecting a network interface module to an end user device, such as a notifier device assigned to a nurse during his or her work shift. The process 400 then determines at 412 whether the user of the device (e.g., the nurse) has been authenticated. If the user has not been authenticated, the process 400 proceeds to 420. On the other hand, if the user has been authenticated, the process 400 proceeds to 414.
The process 400 at 414 communicates the contextual data package to the user. At 416, the process 400 determines whether the contextual data package was received. If the contextual data package was received, the process 400 proceeds to 420. Otherwise, the process 400 proceeds to 418, where the process 400 accesses data stored in the flow control buffer. In one embodiment, the data accessed by the process 400 is equivalent to or substantially equivalent to the contextual data package communicated to the user at 414.
The process 400 then loops back to 414, where the process 400 communicates (e.g., resends) the contextual data package to the user, and then at 416 re-verifies that the package was received. The process 400 in some implementations continues to loop between steps 414, 416, and 418 until the contextual data package was received. Thus, steps 414, 416, and 418 in certain embodiments constitute flow control performed by the process 400. These flow control steps allow the process 400 to overcome network transmission errors which may occur in shared networks.
If the contextual data package was received, the process 400 evaluates whether to continue the monitoring of physiological information at 420. If the process 400 determines to continue monitoring, the process loops back to 404, where the process 400 continues to receive physiological information. If, however, the process 400 determines not to continue monitoring, the process 400 ends.
In various embodiments of the process 400, the contextual data package or the physiological information alone is transmitted to the user even in the absence of an alarm condition. In still other embodiments, fewer than all of the steps are performed, or the steps are performed in different order. For instance, the process 400 may only perform the steps of receiving physiological information at 404, preparing a contextual data package at 406, establishing a network connection at 410, and communicating the contextual data package to the user at 414.
The clinical assignment module 512 has an assignment function. A nursing supervisor assigns individual nurses to specific patients at the start of each shift and upon admission of new patients. Shift assignments take place at change of shift during a “report” transition exercise where individual nurses and nursing supervisor from previous shift “hand off” patients to the next shift. The report can be either formal where all nurses attend or informal dependent on hospital nursing service policies and procedures. The clinical assignment module 512 provides an intuitive interface that allows a listing of available nurses to be assigned individual patients. The major user of this module is the unit clerk as assigned by the nursing supervisor. A nurse can be assigned one or more patients or all patients. An alternative work flow is self assignment where individual nurses assign patients themselves in which case they perform functions of the unit clerk. In the self assignment model, a default is implemented where any unassigned patient is either assigned to all nurses or the nursing supervisor.
The bedside device initialization module 514 has bedside devices, such as the network interface modules described above, that are sometimes set up by an aide to the nurse. In the case where the nurse performs this task, she or he performs the functions of the nursing aide. Work flow includes delivering a device to bedside, applying sensors, initializing the device, and setting patient context, such as name, ID and location.
The notification and viewing module 516 assigns a wireless notification device, such as a one-way pager, PDA, IP telephone, COW, or Tablet to individual nurses. The device becomes associated with her or him. Alarms are routed to the notification device based on the clinical assignment module 512. Non-dedicated notifier solutions such as hospital owned paging systems issued to nurses have unknown latency characteristics. A general purpose interface is available at the server with a latency of less than 1 second upon receipt from the bedside device and is time stamped upon presentation to the server external interface and stored in a journaling system within the server. An additional interface for mobile computing platforms such as PDA, COWS, and Tablets allows viewing of current and trend data for an individual patient.
The escalation rules module 518 has a rules engine that actuates an escalation policy defined by the hospital. The escalation rules module 518 provides alternative routing of alarms to alternative and additional clinical users in the event an alarm is not responded to or persists for a predefined (e.g., by a policy) period of time. The escalation rules module 518 in certain embodiments routes alarms to an emergency response team.
The clinical report module 520 provides predefined formatted reports on the clinical data from which to determine physiologic condition and/or progress. More than one report may be dependent on end user needs. Reports are not time critical views of individual patients and may be remotely viewed by clinicians who have alarm notification system 500 privileges and have been authenticated by the alarm notification system 500. These reports are web browser views that allow clinicians to set viewing parameters such as time and parameter scales and alarm review.
The clinical data stores module 522 provides data storage and database resources to store information as known to those skilled in the art.
Further shown in
The provisioning module 532 provides provisioning, which is the initial installation of the system and first customer use. The primary user of the provisioning module 532 is the field installer. The provisioning module 532 contains all the start up scripts and system configurations to bring the system from shipping boxes to full alarm notification system 500 functionality. Provisioning includes steps to configure individual devices, notifiers such as pagers, PDA, COW, Tables and IP telephone at the customer site, preferably by wireless means (e.g., Bluetooth).
The administrative module 534 provides a system interface for the application administrator to set up users, set policies for various actor privileges such as a nurses aide being able to set or change alarms, set up allowed device connection identifications, and other general systems administrative duties typical of IT systems.
The service module 536 provides interfaces for various technical support actors including remote service, IT Service, and Biomed Service. Each of these actors may perform each others' functions. Interfaces allow the service actors to access system performance data to access performance, for example, data traffic, device assets connected, software version management, CPU loading, network loading, etc. and execute remote technical service procedures, for example, resetting a printer queue, repartition of disk, uploading software patches, etc. The service module 536 includes a full journaling function that stores every user interaction or a portion of user actions that can be captured by the system, especially changes in default values or alarm settings.
The risk report module 538 provides summary reports on alarm occurrences, duration of alarm, clinical response time to alarms and other statistical data to determine overall effectiveness of clinical response to alarms in compliance with JCAHO, other regulatory bodies, and internal quality assurance committees.
The technical data stores module 540 has the same characteristics as the clinical data stores module 522 except that the technical data stores module 540 is used for technical data. The technical data stores module 540 may or may not share the same physical and logical entity as the clinical data stores module 522.
Additionally shown in
The HL7 interface 552 provides a bi-directional interface to electronic medical records (EMR) and supports both push and pull models. The push model is when a bedside nurse initiates data transfer. The pull model is when an EMR system polls the alarm notification system 500 server. The pager interface 554 provides output to external paging system. Message latency is identified to an end user for any user-owned paging solution. This same output can be used for middleware alarm notification systems such as Emergin. The XML/Web interface 556 provides bi-directional interface with mobile computing platforms such as wireless PDA, COWs, Tables, and Web-enabled IP phones. Mobile computing platforms support Web Browser XML applications. The device interface 558 provides a bi-directional interface to bedside devices as well as to other devices enabled by the communications module or accessory. Application Programmer Interface (API) capability is an option for interfacing to other bedside devices.
The major end users of the alarm notification system 500 system (not shown or described for simplicity) include hospital electronic medical records, admit discharge transfer, pharmacy, clinical information, patient flow tracking and others. Actors, e.g., users of the alarm notification system 500, including clinical actors and technical support actors. The clinical actors include nursing supervisors, unit clerks, nursing aides, nurses, rapid response teams and respiratory therapists.
A nursing supervisor assigns individual nurses to specific patients at the beginning of each shift. Shift can vary according to hospital staffing policies. A unit clerk takes direction from the nursing supervisor, typically inputs assignments into system and monitors overall system. A unit clerk may not be available for all shifts. A nursing aide takes assignments from nurse or nursing supervisor, typically applies bedside device sensor, initializes the bedside device and sets alarms to default values. A nurse has primary responsibility for individual patient care and primary response to alarms. The nurse is assigned by nursing supervisor to more than one patient dependent on her/his skills and patient needs and is not always assigned the same patient. Nursing aides are not found in all hospitals.
A rapid response team responds to clinical emergencies initiated by either a bedside nurse or a nursing supervisor. The team supports more than one care unit and has one or more members depending on shift. Rapid Response Teams may not be implemented in all hospitals. A respiratory therapist has responsibilities for management of respiratory care for more than one patient and usually more than one care unit. Respiratory therapists are not found in some international settings.
Clinical actor performance substitution allows a high capability actor to assume the roles of other actors. Alarm notification system 500 allows mechanisms for such performance. For example, a nursing supervisor may perform functions of a unit clerk nursing aide, a nurse and a rapid response team. A nurse may perform functions of a unit clerk, a nursing aide and a rapid response team. In some international markets a nurse may perform the functions of a respiratory therapist.
The technical support actors include field installers, application administrators, remote services, IT engineers, biomedical engineers and risk managers. A field installer provisions the system for initial installation, installs components, and validates that the installation and configuration meet a purchasing contract. An application administrator sets up and maintains user accounts and systems defaults. A remote service provides remote diagnostics and system maintenance over a remote link, such as dial up and VPN. An IT engineer provides network support services if the system is integrated with the hospital IT network. A biomedical engineer provides bedside and system primary service. A risk manager reviews reports for quality and risk mitigation purposes. Technical support actors may also fill in for other actors. For example, an IT engineer, a biomedical engineer, or a remote service can perform the functions of an application administrator. An IT engineer or a biomedical engineer can perform each other's functions.
In certain embodiments, systems and methods are provided for rapidly storing and acquiring physiological trend data. For instance, physiological information obtained from a medical patient can be stored in a round-robin database. The round-robin database can store the physiological information in a series of records equally spaced in time. Parameter descriptors may be used to identify parameter values in the records. The parameter values can be dynamically updated by changing the parameter descriptors to provide for a flexible database. In addition, the size of files used in the database can be dynamically adjusted to account for patient condition.
Additionally, in certain embodiments, medical data obtained from a clinical network of physiological monitors can be stored or journaled in a journal database. The medical data can include device events that occurred in response to clinician interactions with one or more medical devices. The medical event data may also include device-initiated events, such as alarms and the like. The medical data stored in the journal database can be analyzed to derive statistics or metrics, which may be used to improve clinician and/or hospital performance.
As used herein the terms “round-robin database” and “RRDB,” in addition to having their ordinary meaning, can also describe improved database structures having unique characteristics and features disclosed herein. Sometimes these structures are referred to herein as dynamic RRDBs or adaptive RRDBs.
The network 610 of the clinical network environment 600 can be a LAN or WAN, wireless LAN (“WLAN”), or other type of network used in any hospital, nursing home, patient care center, or other clinical location. For ease of illustration, the remainder of this specification will describe clinical environments in the context of hospitals; however, it should be understood that the features described herein may also be employed in other clinical locations or settings. In some implementations, the network 610 can interconnect devices from multiple hospitals or clinical locations, which may be remote from one another, through the Internet, a leased line, or the like. Likewise, the various devices 620, 630, 640, and 650 of the clinical network environment 100 may be geographically distributed (e.g., among multiple hospitals) or co-located (e.g., in a single hospital).
The patient monitors 640 may be point-of-care (POC) instruments or the like that monitor physiological signals detected by sensors coupled with medical patients. The patient monitors 640 may process the signals to determine any of a variety of physiological parameters. One example of a physiological parameter is blood oxygen saturation (SpO2). Other examples of physiological parameters are described below with respect to
The patient monitors 640 can provide the physiological information to the MMS 620. The patient monitors 640 can also provide information on medical events, such as alarms, to the MMS 620. Alarms can be triggered, for example, in response to a physiological parameter falling outside of a normal range. Alarms can also include alerts regarding equipment failures, such as a probe-off condition where a sensor has fallen off of a patient. Other examples of medical events are described below with respect to
In various embodiments, the patient monitors 640 provide the physiological information and medical events to the MMS 620. The MMS 620 is described in greater detail below. In some implementations, the patient monitors 640 may provide at least some of this information directly to the nurses' station systems 630 and clinician devices 650.
The nurses' station systems 630 can be desktop computers, laptops, work stations, or the like that are located at a nurses' station. One or more nurses' station computers 630 can be located at a single nurses' station. The nurses' station computers 630 can receive and display physiological information and alarm data received from the MMS 620 (or monitors 640). In certain embodiments, the nurses' station computers 630 use a graphical user interface (GUI) that provides a streamlined, at-a-glance view of physiological and medical information. An example of this GUI is described below with respect to
The clinician devices 650 can include any of a variety of devices used by clinicians, such as pagers, cell phones, smart phones, personal digital assistants (PDA), laptops, tablet PCs, personal computers, and the like. The clinician devices 650 are able to receive, in some embodiments, physiological information and alarms from the MMS 620 (or monitors 640). Physiological and alarm data can be provided to a particular clinician device 650, for example, in response to an alarm. The clinician devices 650 can, in some instances, receive values and waveforms of physiological parameters.
The MMS 620 in certain embodiments includes one or more physical computing devices, such as servers, having hardware and/or software for managing network traffic in the network 610. This hardware and/or software may be logically and/or physically divided into different servers 620 for different functions, such as communications servers, web servers, database servers, application servers, file servers, proxy servers, and the like.
The MMS 620 can use standardized protocols (such as TCP/IP) or proprietary protocols to communicate with the patient monitors 640, the nurses' station computers 630, and the clinician devices 650. In one embodiment, when a patient monitor 640 wishes to connect to the MMS 620, the MMS 620 can authenticate the patient monitor 640 and provide the monitor 640 with context information of a patient coupled to the monitor 640. Context information can include patient demography, patient alarm settings, and clinician assignments to the patient, among other things. Examples of context information are described herein. The MMS 620 may obtain this context information from the nurses' station systems 630 or other hospital computer systems, where patient admitting information is provided.
Upon connecting to a patient monitor 640, the MMS 620 may receive physiological information and medical events from the patient monitors 640. The MMS 620 may provide at least a portion of the physiological information and events to the nurses' station systems 630 and/or clinician devices 650. For example, the MMS 620 may provide physiological data and alarms for a plurality of patient monitors 640 to a nurses' station system 630, where nurses can evaluate the data and/or alarms to determine how to treat patients. Similarly, the MMS 620 may send wireless pages, emails, instant messages, or the like to clinician devices 650 to provide clinicians with physiological data and alarms.
Advantageously, in certain embodiments, the MMS 620 can store physiological information obtained from the patient monitors 640 in a round-robin database (RRDB) 624. The RRDB 622 of various embodiments includes a streamlined database structure that facilitates rapidly storing and retrieving patient data. The RRDB 622 can therefore be used in certain embodiments to rapidly provide physiological trend data to the nurses' stations 630 and to the clinician devices 650. Thus, for example, if a clinician desires to see a patient's physiological trends over a certain time period, such as the past hour, the clinician can use a nurses' station computer 630 or clinical device 650 to query the MMS 620. The MMS 620 may then obtain physiological information corresponding to the desired time period from the RRDB 622. Advantageously, the RRDB 622 can enable faster acquisition of trend data then is possible with relational databases currently used by hospital monitoring systems. Additional uses and optimizations of the RRDB 622 are described below.
In certain embodiments, the MMS 620 also archives or stores information about medical events in a journal database 624. The medical events can include events recorded by devices such as the patient monitors 640, nurses' station systems 630, and clinician devices 650. In particular, the medical events can include device events that occur in response to a clinician's interaction with a device, such as a clinician-initiated deactivation of an alarm. The medical events can also include device events that occur without a clinician's interaction with the device, such as the alarm itself. Additional examples of medical events are described below with respect to
The MMS 620 may analyze the medical event information stored in the journal database 624 to derive statistics about the medical events. For example, the MMS 620 can analyze alarm events and alarm deactivation events to determine clinician response times to alarms. Using these statistics, the MMS 620 may generate reports about clinician and and/or hospital performance. Advantageously, in certain embodiments, these statistics and reports may be used to improve the performance of clinicians and hospitals.
For instance, in certain situations, the reports might help hospitals discover the cause of issues with patient monitors 640. The following example scenario can illustrate potential benefits of such a report. SpO2 alarm levels tend to be different for adults and neonates. However, some clinicians may not know this and may modify neonate SpO2 monitors to include adult alarm levels. These changes can result in many false alarms, which may cause clinicians to become frustrated and avoid using the patient monitors 640. By journaling medical events such as clinician alarm changes, it can be determined by an analysis of the journaled data that clinicians were inappropriately adjusting alarm settings on neonate monitors. A hospital could then use this information to take corrective action, such as by fixing the alarm limits and training the clinicians.
Although not shown, administrative devices may be provided in the clinical network environment 600. The administrative devices can include computing devices operated by hospital administrators, IT staff, or the like. Using the administrative devices, IT staff may, for example, promulgate changes to a plurality of patient monitors 640, nurses' station systems 630, and the MMS 620. The administrative devices may also allow IT staff to interface third-party systems with the MMS 620, such as electronic medical record (EMR) systems. The third party systems may be used, for instance, to change alarm settings on a plurality of monitors from an administrative device. Actions performed by administrators, IT staff, and administrative devices in general may also be journaled in the journal database 624.
The depicted embodiment of the patient monitor 740 includes a monitoring module 742, an RRDB module 744, and a journal module 746. Each of these modules may include hardware and/or software. Other components, such as a communications module, are not shown but may be included in the patient monitor 740 in various implementations.
The monitoring module 742 can monitor physiological signals generated by one or more sensors coupled with a patient. The monitoring module 742 may process the signals to determine any of a variety of physiological parameters. For example, the monitoring module 742 can determine physiological parameters such as pulse rate, plethysmograph waveform data, perfusion index, and values of blood constituents in body tissue, including for example, arterial carbon monoxide saturation (“HbCO”), methemoglobin saturation (“HbMet”), total hemoglobin (“HbT” or “SpHb”), arterial oxygen saturation (“SpO2”), fractional arterial oxygen saturation (“SpaO2”), oxygen content (“CaO2”), or the like.
In addition, the monitoring module 742 may obtain physiological information from acoustic sensors in order to determine respiratory rate, inspiratory time, expiratory time, inspiration-to-expiration ratio, inspiratory flow, expiratory flow, tidal volume, minute volume, apnea duration, breath sounds, rales, rhonchi, stridor, and changes in breath sounds such as decreased volume or change in airflow. In addition, in some cases the monitoring module 742 monitors other physiological sounds, such as heart rate (e.g., to help with probe-off detection), heart sounds (e.g., S1, S2, S3, S4, and murmurs), and changes in heart sounds such as normal to murmur or split heart sounds indicating fluid overload. Moreover, the monitoring module 742 may monitor a patient's electrical heart activity via electrocardiography (ECG) and numerous other physiological parameters.
In some implementations, the patient monitors 740 may also determine various measures of data confidence, such as the data confidence indicators described in U.S. Pat. No. 7,024,233 entitled “Pulse oximetry data confidence indicator,” the disclosure of which is hereby incorporated by reference in its entirety. The patient monitors 740 may also determine a perfusion index, such as the perfusion index described in U.S. Pat. No. 7,292,883 entitled “Physiological assessment system,” the disclosure of which is hereby incorporated by reference in its entirety. Moreover, the patient monitors 740 may determine a plethysmograph variability index (PVI), such as the PVI described in U.S. Publication No. 2008/0188760 entitled “Plethysmograph variability processor,” the disclosure of which is hereby incorporated by reference in its entirety. The parameters described herein are merely examples, and many other parameters may be used in certain embodiments.
In certain embodiments, the RRDB module 744 receives physiological information from the monitoring module 742 and transmits the physiological information over the network 710 to the MMS 720. In response, the MMS 220 may store the physiological information in the RRDB 722. Advantageously, in certain embodiments, the RRDB module 744 associates the physiological information with parameter descriptors prior to transmittal to the MMS 720. The parameter descriptors may be identifiers that the RRDB module 744 associates with each measured physiological parameter value. The MMS 720 may use these parameter descriptors to identify the types of measured parameters received from the RRDB module 744.
The parameter descriptors may be descriptors generated according to a markup language specification, such as an extensible markup language (XML) specification. As such, the parameter descriptors may include tags that enclose measured physiological values. These tags may be machine readable or human readable. For instance, the tags may include numerical identifiers (e.g., “0017”) or descriptive identifiers, such as “SPO2” or “SPHB.” A simplified example stream of physiological information from an SpO2 sensor and an SpHb sensor associated with parameter descriptors might be as follows: <SPO2>96</SPO2><SPHB>14.1</SPHB><SPO2>97</SPO2><SPHB>14.0</SPHB>, and so on.
In one embodiment, the RRDB module 744 may have stored (e.g., in a data file) a set of predefined parameter descriptors available for the patient monitor 740. These parameter descriptors may correspond to possible parameters that may be measured by the patient monitor 740. The parameter descriptors transmitted by the RRDB module 744 may depend on the particular subset of parameters measured by the patient monitor 740.
If an additional (or different) parameter is subsequently measured by the patient monitor 740, the RRDB module 740 may dynamically update the parameter descriptors that are sent to the MMS 720. Likewise, if the patient monitor 740 ceases to measure one of the parameters, the RRDB module 744 may cease to transmit the corresponding parameter descriptor to the MMS 720.
The patient monitor 740 also includes a journal module 746 in the depicted embodiment. The journal module 740 may record medical events related to the patient monitor 740. These medical events can include clinician-initiated events, such as changes to alarm settings (e.g., maximum and minimum permitted parameter values), types of parameters monitored/sensors connected to the patient monitor 740, and the like. The journal module 746 may record these events by, for example, acting as a key logger or the like to record button presses of a clinician. The journal module 746 may also include current-sense circuitry to detect when sensors or cables are connected to the monitor 740, and so forth. The medical events may also include non-clinician initiated events, such as alarms and alerts. The medical events can also include events from administrative devices (not shown), such as EMR updates to alarm settings across the network 710.
The journal module 746 may log these events locally at the patient monitor 740. In addition, or instead of logging the events locally, the journal module 746 may transmit information about the events to the MMS 720. In turn, the MMS 720 can store the event information in the journal database 724.
The nurses' station system 730 is shown in the depicted embodiment having a patient monitoring client 732. The patient monitoring client 732 can enable the nurses' station system 730 to receive and display physiological information and alarm information. The patient monitoring client 732 includes a user interface module 734. The user interface module 734 may include, for example, software for displaying physiological information, patient information, and medical event information for a plurality of patient monitors 740. The user interface module 734 may also allow clinicians to admit and discharge patients, remotely modify device alarm limits, and the like. An example user interface that may be generated by the user interface module 734 is described below with respect to
The patient monitoring client 732 further includes a journal module 736. The journal module 736 may include software for recording medical events related to the patient monitoring client 732. For example, the journal module 736 may record which clinicians login to and logoff of the patient monitoring client 732 and when these events occur; admit and discharge events; and other clinician keystrokes, mouse clicks, and interactions with the patient monitoring client 732. The journal module 736 may log this event information locally at the nurse's station system 730 and/or transmit the event information to the MMS 720.
As shown, the MMS 720 may include a network management module 721, an RRDB management module 723, and a journal management module 725, each of which may include one or more software components. In one embodiment, the network management module 721 receives messages containing physiological information and medical event data from the patient monitor 740. The network management module 721 can provide at least a portion of this data to the nurses' station system 730 and clinician devices 650 of
In certain embodiments, the RRDB management module 723 stores the physiological information received from the patient monitor 740 in the RRDB 722. When the patient monitor 740 initially connects to the MMS 720, or at another time, the RRDB management module 723 can create one or more RRDB files in the RRDB 722 corresponding to the patient monitor 740. The contents of this file or files may depend on the type of patient monitor 740, which may be defined by the patient monitor's 740 serial number, model number, vendor identifier, combinations of the same, or the like. Specific examples of the structure and contents of RRDB files are described in US Patent Publication 2009/0119330, the entire contents of which are hereby incorporated by reference herein.
The RRDB management module 723 can also provide physiological trend data stored in the RRDB to the network management module 721 for transmittal to monitors 740, nurses' station systems 730, and/or clinician devices. The RRDB management module 723 may also provide physiological data from the RRDB 722 to the journal management module 725 for purposes described below with respect to
The journal management module 725, in certain implementations, receives medical event data from the monitor 740 and the nurses' station system 730 and stores this data in the journal database 724. In an embodiment, the journal database 724 is a relational database; however, other structures may be used. Each entry of event data may have a corresponding time stamp that indicates when an event occurred. This time stamp may be provided by the journal modules 746 or 736 or by the journal management module 725. The journal management module 725 may also store event counters in the journal database 724 that reflect a number of times medical events occurred. For example, counters could be stored that count how many alarms occurred within a period of time or how many times a clinician logged on or logged off of a network device.
Advantageously, the journal management module 725 may, in certain embodiments, analyze the medical data in the journal database 724 to determine statistics or metrics of clinician and/or hospital performance. The journal management module 725 may provide an interface to users of the nurses' station system 730 or another computing device to access these statistics. In one example embodiment, journal management module 725 can analyze alarm events and alarm deactivation events to determine clinician response times to alarms. The journal management module 725 may further determine the clinician response times in nurses' day and night shifts. The journal management module 725 may generate reports of these statistics so that hospital administrators, for example, may determine which shifts perform better than others.
More generally, the journal management module 725 may generate reports about clinician and and/or hospital performance by analyzing various statistics derived from data in the journal database 724. One example of a report is a monitoring report card, which grades a given hospital against other hospitals (or nurses' station against nurses' station, and the like) based at least partly on the derived statistics. Advantageously, hospital administrators, clinicians, and the like may use these statistics and reports to improve the clinician and hospital performance.
Some or all of the features of the clinical network environment 700 may be adapted in certain embodiments. For instance, either or both of the journal modules 746 or 736 may perform some or all of the functions of the journal management module 725. Likewise, one or more journal databases 724 may be stored at the patient monitor 740 and/or nurses' work station 730. Similarly, the RRDB module 724 may perform some or all of the functions of the RRDB management module 723, and an RRDB 722 may be stored at the patient monitor 740. In addition, in some implementations, the clinician devices 650 of FIG. 6 may have RRDB and/or journal modules as well. Many other adaptations, configurations, and combinations may be made in other embodiments. Additional information regarding embodiments of the RRDM can be found in US Patent Publication 2009/0119330.
At block 802, medical events are journaled in a journal database. In response to requests for report from a user (e.g., a clinician), at block 804 statistics about the medical events are obtained from the journal database. The statistics may include the type, frequency, and duration of medical events, the identity of clinicians or patients associated with the events, alarm response times, combinations of the same, and the like.
A report is generated at block 806 regarding the medical event statistics. At block 808, the report is used to identify potential areas of improvement in hospital operations. For example, the report can be a “monitoring report card” that assigns scores to the hospital or clinicians of the hospital based on their performance.
At block 812, the request is received from a user to review journaled and physiological data corresponding to a period of time. The user may be a clinician, hospital administrator, or the like, who wishes to determine the cause of a problem in the healthcare of a patient. For instance, the user may wish to determine why clinicians failed to respond when a patient's SpO2 dropped below safe levels.
At block 814, journaled data is retrieved for the specified period of time from a journal database. This block may be performed by the journal management module 725. At block 816, physiological data for the specified period of time is retrieved from an RRDB. This block may be performed by the RRDB management module 723. The journal data is correlated with the physiological data with respect to time at block 818. This correlation may include reconstructing a timeline of medical events, with values of physiological parameters (optionally including waveforms) provided in the correct time sequence on the timeline. In some embodiments, to facilitate this coordination between the RRDB management module 723 and the journal management module 725, timestamps in each database 722, 724 may be synchronized when the data is stored.
The correlated data is output for presentation to the user at block 820. The output may include, for example, a graphical view of medical events superimposed on physiological information (e.g., a waveform), or the like. Many display formats may be used for the correlated data.
The GUI 900 includes several display areas. In the depicted embodiment, the GUI 900 includes a patient status display area 910. The patient status display area 910 shows the status of multiple patients in a hospital or other clinical location. In an embodiment, patient status display area 910 depicts patient status for patients in a hospital department. Advantageously, in certain embodiments, the patient status display area 910 provides an “at-a-glance” view of multiple patients' health status.
The patient status display area 910 includes a plurality of patient status modules 912. Each patient status module 912 can correspond to a patient monitor that can be coupled to a medical patient. Each patient status module 912 can display a graphical status indicator 914. An example graphical status indicator 914 is shown in the screens 900 as a miniature patient monitor icon. The graphical status indicator 914 can selectively indicate one of several states of a patient monitor. In one embodiment, four possible patient monitor states can be depicted by the graphical status indicator 914. These include an alarm condition, a no alarm condition, patient context information status, and connection status.
In various implementations, the graphical status indicator 914 changes color, shape, or the like to indicate one of the different patient monitor states. For example, if an alarm condition is present, the graphical status indicator 914 could turn red to signify the alarm. If there is no context information available for the patient (see
Advantageously, the graphical status indicator 914 shows at a glance the status of a patient monitor. Thus, in the patient status display area 910, several graphical status indicators 914 corresponding to several patients show an at-a-glance view for the patient monitors corresponding to these patients. A clinician can therefore readily see the needs that a patient might have with regards to alarms, connection status, and context information.
Currently available graphical user interfaces for nurses' station computers tend to show a plurality of wave forms or changing physiological parameter numbers for each patient. This method of displaying patient information can be cluttered, confusing, and even hypnotic in some situations. Nurses working on a night shift, for instance, may find it difficult to concentrate on an alarm when several other patients' indicators on the display have changing numbers, changing waveforms, or the like. In contrast, in the graphical interface herein described, when the graphical status indicator 914 indicates an alarm condition, this alarm condition can stand out and be immediately recognized by the clinician.
Moreover, the graphical status indicator 914 simplifies the first level of analysis that nurses tend to perform. In currently available devices, nurses often have to analyze waveforms at the nurses' station to determine the health status of a patient. However, using the screens 900, a nurse need not interpret any waveforms or changing parameters of the patient, but instead can rely on the graphical status indicator 914 that indicates the presence of an alarm.
In certain embodiments, the patient status modules 912 can be selected by a single mouse click or the like. Selecting a patient status module 912 in one embodiment can bring up a patient monitor view area 920. The patient monitor view area 920 shows a view of a patient monitor corresponding to a selected patient status module 912. In certain implementations, the patient monitor view area 920 can show a view of the screen from the actual patient monitor device at the bedside of the patient. Thus, a clinician can readily recognize the physiological parameters of the patient in a format that the clinician is likely familiar with. The patient monitor view area 920 is currently receiving physiological information from a patient.
A history view area 930 in certain implementations can show medical event data corresponding to a selected patient monitor status module 912. This medical event data can be obtained from a journal database for inclusion in the GUI 900. The historical view 930 can show, for example, when a sensor was connected or disconnected from a patient, when alarms were active, and when a patient was admitted to the hospital or department. Although not shown, the history view area 930 can also be configured to show trend data obtained from an RRDB instead of, or in addition to, the journaled data.
Patient Monitoring Device with Video Calling Functionality
The patient monitoring device 1000 can also include a camera 1004. The camera 1004 is capable of capturing image data, such as still images and/or videos. The camera 1004 can also capture audio data. The camera 1004 may capture image data using visible and/or infrared light. Visible light capture may be advantageous during daylight hours, whereas infrared light capture may be advantageous during evening hours when the patient's room is dark. As illustrated, the camera 1004 can be mounted on top of the patient monitoring device 1000, though other mounting positions can also be used. In some embodiments, the camera 1004 may be integrated into the housing of the patient monitoring device 1000. The direction in which the camera 1004 is aimed can be adjustable, either manually or by remote control using one or more motors.
The image and/or audio data captured by the camera 1004 can be transmitted to a remote device using, for example, one or more communication networks, such as those described herein (e.g., computer networks such as LANs, WLANs, the Internet, etc., telephone networks, etc.). In some embodiments, one or more communication networks that are entirely or partially physically located in a hospital or other patient care center can be used. In some embodiments, external communication networks can be used to reach remote devices throughout the world. Thus, clinicians can remotely obtain a vast amount of information regarding the condition of their patients regardless of the clinician's location.
The patient monitoring device 1000 can be communicatively coupled with a remotely-located clinician camera. The clinician camera can capture image and/or audio data from a clinician and can communicate that data to the patient monitoring device 1000 using the same communication network(s) which is/are used to transmit image and/or audio data from the camera 1004 to the remote device being used by the clinician.
The patient monitoring device 1000 includes a clinician video call display area 1006 and a patient video call display area 1008. The image data from the clinician camera can be displayed in the clinician video call display area 1006. The patient monitoring device 1000 can also include a speaker to play the audio data from the clinician camera. Meanwhile, the patient video call display area 1008 can be used to display the image data being captured by the camera 1004. The patient video call display area 1008 may be advantageous in allowing the patient to adjust the aim of the camera 1004 and/or his or her own positioning with respect to the camera.
The GUI 1010 includes several display areas. In the depicted embodiment, the GUI 1010 includes a plurality of patient status modules 1012. Each patient status module 1012 can correspond to a patient monitoring device 1000 that can be coupled to a medical patient. Each patient status module 1012 can display graphical and/or numerical information about one or more physiological parameters. In addition, each patient status module 1012 can include a patient video display area 1014. Each patient video display area 1014 can display image data captured by the camera 1004 of the corresponding patient monitoring device 1000.
Patient Information System
In addition, the patient information system 1100 can include a schedule compliance indicator 1116. The schedule compliance indicator 1116 indicates, graphically and/or textually, the patient's compliance with his or her scheduled appointments, tasks, goals, procedures, medication times, reminders, etc. during the day. The schedule compliance indicator 1116 can provide an at-a-glance summary of how well the patient is complying with scheduled items. In the illustrated embodiment, the schedule compliance indicator 1116 is a graphical flower which the patient makes “grow” by indicating his or her compliance with scheduled items. For example, when the patient indicates, using the compliance input region 1114, compliance with a scheduled item, a leaf or petal can be displayed on the flower. The flower is but one example of a compliance indicator 1116; many other graphics can also be used.
The patient information system 1100 can also include a map module 1122. The map module can show a map of the building where the patient is being cared for. The map module 1122 can also include an indicator that shows the location of the patient and/or the patient's room.
The patient information system 1100 can also include an assigned clinician module 1130. The assigned clinician module 1130 can include one or more fields which indicate the names and/or contact information for one or more clinicians assigned to care for the patient. The assigned clinician module 1130 can assist the patient in contacting his or her care team.
The communications module 1130 of the patient information system 1100 can also include one or more preset clinician notification inputs 1138. Each of the clinician notification inputs 1138 corresponds to a preset notification message. By interacting with one of the clinician notification input regions 1138, the patient can easily send a preset notification message to his or her assigned care team. Some examples of the particular notification messages include, for example, requests for a pillow, water, clean-up, a snack, a blanket, or other items. Some of the notification messages can also correspond to requests for pain medication, attention to a device in the patient's room which is beeping or otherwise indicating the need for attention, etc. In some embodiments, the visual prominence (e.g., size, brightness, etc.) of each clinician notification input 1138 on the screen of the patient information system 1100 can be set based on the frequency of its usage. For example, a clinician notification input 1138 that is used most frequently by the patient, or by a selected group of patients, can be displayed with the largest size. The clinician notification input 1138 with the next most frequent usage can be displayed with the next largest size, and so on. In this way, the patient can more easily access the most frequently used clinician notification inputs 1138. In some embodiments, the visual prominence (e.g., size, brightness, etc.) of each clinician notification input 1130 on the screen of the patient information system 1100 can be set based on its importance or criticality (e.g., as determined by hospital staff).
As illustrated, the patient information system 1100 can also include an input 1160 which the patient can select in order to display any or all of the vital sign information shown on the linked patient monitoring device 1000.
Information and signals described herein can be represented using any of a variety of different technologies and techniques. For example, data, instructions, commands, information, signals, bits, symbols, and chips that can be referenced throughout the above description can be represented by voltages, currents, electromagnetic waves, magnetic fields or particles, optical fields or particles, or any combination thereof.
The various illustrative logical blocks, modules, circuits, and algorithm steps described in connection with the embodiments disclosed herein may be implemented as electronic hardware, computer software, or combinations of both. To clearly illustrate this interchangeability of hardware and software, various illustrative components, blocks, modules, circuits, and steps have been described above generally in terms of their functionality. Whether such functionality is implemented as hardware or software depends upon the particular application and design constraints imposed on the overall system. Skilled artisans can implement the described functionality in varying ways for each particular application, but such implementation decisions should not be interpreted as causing a departure from the scope of the present invention.
Depending on the embodiment, certain acts, events, or functions of any of the methods described herein can be performed in a different sequence, may be added, merged, or left out all together (e.g., not all described acts or events are necessary for the practice of the method). Moreover, in certain embodiments, acts or events may be performed concurrently, e.g., through multi-threaded processing, interrupt processing, or multiple processors, rather than sequentially.
The various illustrative logical blocks, modules, and circuits described in connection with the embodiments disclosed herein can be implemented or performed with a general purpose processor, a digital signal processor (DSP), an application specific integrated circuit (ASIC), a field programmable gate array (FPGA) or other programmable logic device, discrete gate or transistor logic, discrete hardware components, or any combination thereof designed to perform the functions described herein. A general purpose processor can be a microprocessor, conventional processor, controller, microcontroller, state machine, etc. A processor can also be implemented as a combination of computing devices, e.g., a combination of a DSP and a microprocessor, a plurality of microprocessors, one or more microprocessors in conjunction with a DSP core, or any other such configuration. In addition, the term “processing” is a broad term meant to encompass several meanings including, for example, implementing program code, executing instructions, manipulating signals, filtering, performing arithmetic operations, and the like.
The steps of a method or algorithm described in connection with the embodiments disclosed herein can be embodied directly in hardware, in a software module executed by a processor, or in a combination of the two. A software module can reside in RAM memory, flash memory, ROM memory, EPROM memory, EEPROM memory, registers, hard disk, a removable disk, a CD-ROM, a DVD, or any other form of storage medium known in the art. A storage medium is coupled to the processor such that the processor can read information from, and write information to, the storage medium. In the alternative, the storage medium may be integral to the processor. The processor and the storage medium can reside in an ASIC. The ASIC can reside in a user terminal. In the alternative, the processor and the storage medium can reside as discrete components in a user terminal.
The modules can include, but are not limited to, any of the following: software or hardware components such as software object-oriented software components, class components and task components, processes, methods, functions, attributes, procedures, subroutines, segments of program code, drivers, firmware, microcode, circuitry, data, databases, data structures, tables, arrays, or variables.
In addition, although this invention has been disclosed in the context of certain preferred embodiments, it should be understood that certain advantages, features and aspects of the systems, devices, and methods may be realized in a variety of other embodiments. Additionally, it is contemplated that various aspects and features described herein can be practiced separately, combined together, or substituted for one another, and that a variety of combination and subcombinations of the features and aspects can be made and still fall within the scope of the invention. Furthermore, the systems and devices described above need not include all of the modules and functions described in the preferred embodiments.
This application claims priority to U.S. Provisional Patent Application 62/745,244, filed Oct. 12, 2018, and entitled “MEDICAL SYSTEMS AND METHODS.” Any and all applications for which a foreign or domestic priority claim is identified in the Application Data Sheet as filed with the present application are hereby incorporated by reference under 37 CFR 1.57.
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| Number | Date | Country |
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| 2017-518834 | Jul 2017 | JP |
| WO 2017139761 | Aug 2017 | WO |
| WO 2018110510 | Jun 2018 | WO |
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| WO 2021189007 | Sep 2021 | WO |
| Entry |
|---|
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| Number | Date | Country | |
|---|---|---|---|
| 20200113435 A1 | Apr 2020 | US |
| Number | Date | Country | |
|---|---|---|---|
| 62745244 | Oct 2018 | US |
