Dual-Interface Wearable Medical Device for Cardiac Event Communication
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Solution Overview
Problem
In a hospital setting, there is a challenge in effectively communicating between caregivers and patients regarding the use and operation of external medical devices, particularly in situations where patients are unaware of how to interact with the devices, leading to delayed notifications of cardiac events and potential life-threatening conditions.
Innovation Solution
An external medical device with a user interface that provides distinct information sets to caregivers and patients, including training modules and notifications, to facilitate proper interaction and communication, utilizing electrodes for cardiac activity monitoring and therapy, and a controller for managing these interactions and notifications.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Device complexity
If a single user interface is used for both caregivers and patients, then device complexity is reduced, but information communication effectiveness deteriorates because patients and caregivers receive the same information without differentiation
Solution Approach 1:
The user interface is segmented into distinct caregiver interface and patient interface components. The processor is configured to provide a first set of information to the caregiver interface and a second set of information to the patient interface, ensuring that each user group receives tailored information appropriate to their role and understanding.
Solution Approach 2:
Different information quality and detail levels are provided to different user groups. The caregiver interface receives comprehensive technical information and device status, while the patient interface receives simplified, action-oriented information about their condition and what steps to take.
2Ease of operation
If patients are provided with comprehensive device operation information, then patient understanding improves, but patient interface complexity increases making it difficult for patients to use
Solution Approach 1:
Complex operational details and technical information are extracted from the patient interface and redirected to the caregiver interface. The patient interface is simplified to show only essential information and actions, while comprehensive operation details are provided to caregivers who have the expertise to understand them.
Solution Approach 2:
Instead of providing all information to patients and filtering what they need, the system inverts the approach by providing comprehensive information to caregivers and having them guide patients through simplified interfaces. This reverses the traditional information flow to better match user capabilities.
3Reliability
If training modules are administered to patients, then patient competence improves, but device interaction time increases delaying critical responses
Solution Approach 1:
Training modules are administered in advance before critical events occur. The system provides training instructions to patients prior to their needing to act independently, ensuring they are prepared and competent when actual cardiac events require their participation.
Solution Approach 2:
During critical cardiac events, the system skips detailed training sequences and provides only essential immediate instructions. The processor can determine whether to provide full training or expedited guidance based on the situation, allowing rapid response when time is critical.
Applied Scientific Principles
This section explains which scientific principles are used to turn an abstract innovation direction into a practical engineering solution.
Function Achieved in This Case
Enhances patient safety by ensuring timely notification of caregivers in case of cardiac events and improves patient understanding of device operation, reducing delays in responding to life-threatening conditions.
Implementation Method 1
one or more electrodes configured to detect a cardiac activity of the patient
Implementation Method 2
the device applies corrective electrical pulses directly to the patient's heart through one or more therapy electrodes
Data Source
AI summary
An external wearable medical device includes an electrode to detect patient cardiac activity; a therapy electrode to provide a therapy in response to detecting an arrhythmia event; a GUI display comprising a caregiver interface and a patient interface; and a processor configured to provide, to the caregiver interface, a first set of information that includes information for operating the device in conjunction with the patient and an alert history of the device including an indication of one or more detected arrhythmia events, provide, to the patient interface, a second set of information that includes information for allowing the patient to cause the device to suspend providing the therapy and a direction to the patient to contact a caregiver responsive to detecting an event affecting at least one of the device and the patient, and responsive to detecting the event, automatically transmitting a notification of the event to an external entity.