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ABSTRACTOpen Cloud Care-remote health monitoringAtlas middleware-scalable integrationService Oriented Architecture-easy
implementationTele monitoringHL7-electronic health record
INTRODUCTIONOnline health monitoringSenior citizens independent of hospitalizationHL7-transfer of electronic medical recordCloud-most scalable and reliable to meet this
demand
EXISTING SYSTEM AND STANDARDSCurrent Scenario in patient health
monitoringPDA and Grid Computing platformUbiMon-data storage and processingMobile communication based Health
monitoring systemCommercial brands-viterion™, healthHero™,
GE QuietCare® and CardGuard™, Intel’s HealthGuide and Philips Telestation.
Cont...Communication StandardsISO/IEEE 11073, IEEE P145, Continua
Alliance,the IHE Initiative and Health Level 7 (HL7)
Key objective- real-time plug-and-play interoperability for medical devices
secured exchange of patient related data among multiple applications in real time
Why we need CloudSl. No
Conventional Tele-monitoring Systems
Cloud Computing
1 Huge capital expenditure (CAPEX) required on IT spending
Pay per use model ;OPEX (Operational expenses) only
2 Securing and maintaining the infrastructure is costlier as well as less reliable
Reliability is the integral part of the cloud
3 Need to architect from ground up and is complex in nature
Modular design approach is possible – Scalable with on demand resources availability
Why we need Cloud…4 Complex infrastructure
is setup.No infrastructure is required.
5 Requires large deployment effort; Consumes higher TCO(total cost of ownership)
SLA driven operations (Service level agreement) reduce the deployment efforts in the customer side; Much lesser TCO
6 Customer is responsible for the reliability and the availability of the IT infrastructure
Cloud service provider isolates the non functional requirements from the clients.
Why we need Cloud…7 Bandwidth and storage
limitedInfinite elastic scalability of storage and bandwidth
8 Bringing all the health care institutions in one platform is complex and manual
Automatic usage metering simplifies the integration of different health care providers under one roof
9 Interoperability support is complex
Interoperability support for hybrid environments are possible
10 Clients need to maintain the separate IT team to implement all the features and security
IT features and services and abstracted and encapsulated from the clients; Clients focus on what they do – monitoring the patient health, leaving the IT hiccups to the cloud provider.
Easy Migration to CloudHarvesting under CloudStep 1: Conduct the cloud migration assessmentStep 2: Isolate the dependenciesStep 3: Map the messaging and environmentStep 4: Re-architect and implement the lost
functionalitiesStep 5: Leverage cloud functionalities and
featuresStep 6: Test the migrationStep 7: Iterate and Optimize
PROPOSED ARCHITECTURERequirementsPrivacy protection, legal requirements (such as HIPAA),data accessibility system usability.
ComponentsSystem architecture-componentsAtlas middleware- expandable network
oriented middleware Device Kit- device interfacing via IP,
Bluetooth, file, URL, and RS-232 Serial Port ,OHF
DDL: integrates blood pressure monitoring system and GPS enabled instruments.
Components…OSGi- supports service-oriented
architecture, efficient search and deployment of the multiple cloud applications
OSGI4C: interface between OSGI and cloud applications using the support of P2P services such as JXTA.
Business process support bundles- patient registration, reports view, HR management for hospitals, scheduling and time keeping.
Components…Core applications bundles Patient EHR storage and management EHR access management workflow management
procedure monitoring services
SECURING THE SYSTEMMandate on EHR SecurityIntegrity- Data shall not be modified in an
unauthorized mannerAvailability- Data is readily accessible upon
demand by an authorized personal. Confidentiality- Data or information is not
given to unauthorized users or applications.
Cont…Cloud Security Infrastructure (CSI)Security management -Intrusion detection -Authorization -Authentication -Anti virus management -Cryptographic key management -User managementBinding security -Binding protocols- IIOP and SOAPPolicy management- The HL7 standard describes
a simple way for managing policies(scenario driven approach)
CONCLUSION Cloud architecture for remote patient health
monitoringArchitecture is an information system based
on service oriented architecture with HL7 policy manager