Handheld ECG Device with Integrated Electrodes
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Solution Overview
Problem
Conventional ECG measurement systems for mobile patients face challenges due to discomfort from adhesive electrodes, limited mobility, and the need for constant setup and removal, as well as logistical and cost issues with existing solutions, particularly when patients are outside a medical environment.
Innovation Solution
A handheld device with electrodes on its surface that allows for self-generated ECG recordings using a controller to provide placement guidance, compare recordings to baseline data, and communicate results, incorporating a cellular telephone or PDA for remote monitoring and notification.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Measurement precision
If adhesive electrodes are used for ECG measurements, then measurement accuracy is improved, but patient comfort deteriorates and device reusability decreases
Solution Approach 1:
The device divides the ECG measurement function into separate components: a handheld ECG recorder with electrodes and a separate transmitter. This allows the electrodes to be dedicated to measurement accuracy while the transmitter handles data transmission, resolving the conflict between measurement precision and patient comfort by enabling easy removal of electrodes without affecting transmission capability.
Solution Approach 2:
The patent introduces an intermediary transmitter device that receives ECG data from the handheld recorder and transmits it remotely. This intermediary allows the ECG measurement system to be separated from the transmission system, enabling electrodes to be optimized for measurement accuracy while the transmitter handles communication, thereby improving both measurement precision and patient comfort.
2Measurement precision
If multiple electrodes are attached to the patient's body for full 12 lead ECG, then measurement completeness is improved, but device complexity and setup difficulty increase
Solution Approach 1:
The patent merges multiple electrodes and the ECG recording function into a single integrated handheld device that can be held and operated by the patient. This consolidation reduces the complexity of multiple separate electrode attachments while maintaining complete 12 lead ECG capability, as all necessary electrodes are incorporated into one manageable unit.
Solution Approach 2:
The handheld ECG recorder serves multiple functions: it contains integrated electrodes for complete ECG measurements, processes the signal, and transmits data remotely. This multi-functional design eliminates the need for separate electrode sets and transmission devices, reducing overall system complexity while maintaining measurement completeness.
3Measurement precision
If adhesive electrodes are used, then ECG measurement capability is improved, but logistical cost and electrode reusability worsen
Solution Approach 1:
The patent employs disposable adhesive electrodes that are inexpensive and single-use, eliminating the need for expensive reusable electrodes and their associated cleaning, sterilization, and maintenance logistics. This approach reduces logistical costs while maintaining adequate measurement capability for the intended portable ECG application.
Solution Approach 2:
The patent extracts the adhesive electrode component from the main system, allowing it to be a separate, disposable element that can be easily replaced. This extraction simplifies the overall system by separating the consumable electrode portion from the reusable handheld recorder and transmitter, reducing logistical complexity and cost while maintaining measurement capability.
4Ease of operation
If electrodes are fixed in a glove for ECG measurements, then ease of operation is improved, but measurement versatility and anatomical accuracy worsen
Solution Approach 1:
The patent employs a dynamic electrode placement system where the handheld device can be positioned at different anatomical locations on the patient's body. The electrodes are not fixed in a rigid glove but can be adaptively placed on various body parts (hands, feet, torso) to obtain different ECG leads, providing both ease of operation and measurement versatility.
Solution Approach 2:
The patent segments the electrode placement function from the measurement function by using a handheld device that can be independently positioned on different body parts. This segmentation allows the electrodes to be placed flexibly on various anatomical locations while the handheld device processes the signal, thereby achieving both ease of operation and measurement versatility that fixed-glove systems cannot provide.
Data Source
AI summary
An apparatus for generating ECG recordings and a method for using the same are disclosed. The apparatus includes a handheld device and a controller. The handheld device has first, second, third, and fourth electrodes on an outer surface of the handheld device. The controller records signals from the first, second, third, and fourth electrodes and generates an ECG recording from the signals. The controller also provides placement information regarding locations on a user's body that are to be brought into contact with the first, second, third, and fourth electrodes while the controller records the signals. The handheld device can include a cellular telephone or a PDA. The controller stores an exemplary normal ECG recording, and compares a newly generated ECG recording with the stored ECG recording and generates an indication that indicates whether the newly generated ECG recording is consistent with the stored ECG recording.