Patent No. US11114194 (titled "Network-Based Systems And Methods For Providing Readmission Notifications") was filed by Collective Medical Technologies Inc on Oct 1, 2015.
’194 is related to the field of healthcare information exchange , specifically systems and methods for providing targeted notifications to healthcare providers. The background acknowledges the existence of Health Information Exchanges (HIEs) that aggregate patient medical records from various sources. However, these existing systems often suffer from incomplete or erroneous data, leading to inaccurate or irrelevant notifications, and can overwhelm providers with excessive information.
The underlying idea behind ’194 is to selectively notify healthcare providers when a patient is readmitted within a specific timeframe. This is achieved by electronically receiving healthcare information from various sources, parsing it for HL7 Admit-Discharge-Transfer (ADT) messages , comparing these messages to identify readmissions, and generating a real-time notification to the readmitting provider only when a readmission is detected within a defined threshold.
The claims of ’194 focus on a method comprising electronically receiving healthcare information from distinct sources, parsing the information for HL7 ADT messages, storing patient-identifying information in a standardized format, determining a readmission time by comparing ADT messages, and generating a readmission notification in real-time. The notification is transmitted to the first healthcare provider if the readmission time is within a stored readmission time threshold and the patient-identifying information indicates the messages identify the same patient. The claims also cover a notification system networked among independent data feeds, with interfaces to read healthcare information in different protocols and a computer processor configured to perform the readmission detection and notification.
In practice, the system receives a stream of healthcare data, including ADT messages, from various hospitals and clinics. The system then parses these messages to extract patient information and admission/discharge dates. When a new admission message is received, the system compares it against previously stored discharge messages for the same patient. If a discharge record exists within the defined timeframe, a readmission notification is generated and sent to the admitting provider. This allows the provider to be immediately aware of the patient's recent medical history and potential readmission risks.
’194 differentiates itself from prior approaches by selectively filtering and delivering only clinically relevant alerts, specifically focusing on readmissions within a critical timeframe. Unlike conventional HIEs that may flood providers with unfiltered data, this invention aims to provide timely and actionable information, preventing information overload and improving care management. The system also leverages the synergy between different healthcare information sources to enhance message accuracy and completeness, addressing the limitations of existing systems that rely solely on provider-submitted data.
In the mid-2010s when '194 was filed, healthcare systems commonly relied on HL7 ADT messages for exchanging patient information between disparate systems. At a time when healthcare providers were increasingly adopting electronic health records (EHRs), the ability to efficiently process and analyze these messages to improve patient care and outcomes was a significant technical challenge. The need for interoperability and real-time data analysis was growing, but hardware and software constraints made it non-trivial to process large volumes of HL7 ADT messages and provide timely notifications to healthcare providers.
The examiner allowed the claims because the prior art, including Chen and McNair, did not disclose comparing a first HL7 ADT message indicating a patient's discharge against a second HL7 ADT message indicating a later admission to determine a readmission time. Furthermore, the prior art did not teach instructing a computer of one of the healthcare providers to display a readmission notification in real-time, providing immediate access to up-to-date patient information, and identifying the readmission based on the comparison, where the instruction is executed only if the readmission time is within a threshold stored in memory. The examiner also stated that the closest foreign reference, Amarasingham, discusses using clinical data from the patient's record to analyze patient data, including readmissions, but does not disclose or render obvious the claimed invention. The examiner also stated that the closes non-patent literature reference, Alexander, Alex et al., Department of Health & Human Services, Improving Hospital Transitions and Care Coordination Using Automated Admission, Discharge and Transfer Alert, discusses using ADT alerts to coordinate patient care, but does not disclose the claimed invention (comparing HL7 ADT messages to generate an alert).
This patent contains 20 claims, with independent claims numbered 1, 10, and 16. The independent claims are generally directed to methods and a system for processing healthcare information from multiple sources to identify and notify healthcare providers of patient readmissions. The dependent claims generally elaborate on and refine the specifics of the methods and system described in the independent claims.
Definitions of key terms used in the patent claims.

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