Radio-Transparent Patch Sensor Assembly with Single Cable
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Solution Overview
Problem
Existing electrophysiology patch and sensor cable mechanisms are radiopaque, large, and prone to rotation, causing conflicts with other medical devices, and they do not allow for the reuse of biosensors and electrodes without degradation in performance.
Innovation Solution
A radio-transparent patch and sensor assembly with a reusable and disposable portion, where the biosensor and electrode are connected via a single cable, using a magnetic-based biosensor and impedance-based signals, allowing for secure attachment and repeated use without performance degradation.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Reliability
If existing electrophysiology patch and sensor cable mechanisms are used, then electrical and magnetic sensing functions are provided, but the mechanisms are radiopaque, large, and prone to rotation causing conflicts with other medical devices
Solution Approach 1:
The patent combines the electrical electrode and magnetic biosensor into a single integrated patch assembly, where both sensing functions share common structural elements (substrate, adhesive layer, housing). This merging reduces the overall device size and eliminates the need for separate radiopaque components, allowing the assembly to be radio-transparent while maintaining both sensing functions.
Solution Approach 2:
The patch assembly is designed to perform multiple functions simultaneously: electrical signal sensing through electrodes, magnetic field sensing through biosensors, and secure attachment to the patient's body. The single cable design integrates both electrical and magnetic signal transmission, making the system multi-functional while minimizing device footprint and avoiding rotation issues.
2Reliability
If existing patch and cable mechanisms are used, then sensing is achieved, but the mechanisms are radiopaque and large causing conflicts with other medical devices
Solution Approach 1:
The patent applies the principle of changing the radiographic properties of the device by using radio-transparent materials instead of traditional radiopaque components. The patch substrate, adhesive layers, and housing are all designed to be radio-transparent, allowing fluoroscopic imaging to proceed without interference from the monitoring devices themselves, thus eliminating the harmful radiopacity effect.
3Productivity
If existing patch and cable mechanisms are used, then sensing functions are provided, but reuse of biosensors and electrodes degrades performance
Solution Approach 1:
The patent divides the system into reusable and disposable segments. The biosensors and electrodes are housed in a reusable protective housing that can be sterilized and reused, while the patch substrate and adhesive layers form a disposable portion that is replaced after each use. This segmentation allows the sensitive sensing elements to be protected during reuse while maintaining performance, as the disposable portion ensures fresh contact with the patient's body each time.
4Reliability
If existing patch and cable mechanisms are used, then sensing is achieved, but attachment is complex and rotation occurs
Solution Approach 1:
The patent employs asymmetric design elements in the connector interface between the patch and cable assembly. The housing includes asymmetric features such as positioning protrusions and corresponding recesses that prevent rotational misalignment and ensure proper orientation during attachment. This asymmetric design simplifies the attachment process by providing intuitive alignment while maintaining secure, rotation-free connection.
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
The solution provides a compact, secure, and reusable patch and sensor system that minimizes space on the patient, reduces conflicts with other medical devices, and maintains performance over multiple uses, while being easy to attach and detach.
Implementation Method 1
a magnetic-based biosensor and at least one probe electrode, wherein the magnetic-based biosensor generates position coordinates of the probe
Implementation Method 2
the at least one probe electrode transmits impedance-based signals through the patient's body
Data Source
AI summary
A patch and sensor assembly has a biosensor housed in a reusable portion that connects to a mapping and localization system (MLS) via biosensor wires. A disposable portion has an electrode layer through which signals are transmitted to the MLS via ACL wires. The biosensor and ACL wires extend through a single cable exiting the reusable portion. The disposable portion includes an adhesive layer for adhering the electrode layer to a patient, on the electrode layer, and an engagement element for detachably receiving at least a portion of the housing of the reusable portion. The reusable portion includes a housing in which the biosensor has biosensor wires that exit the reusable portion. The housing is also adapted to carry and/or provide support to an ACL contact member responsive to the electrode layer of the disposable portion, and ACL wires that exit the reusable portion.