EM Probe Patch with Absorbing Material for Noise Isolation
Find Innovative SolutionsGenerate Solutions
Solution Overview
Problem
Existing electromagnetic (EM) probes face challenges in accurately monitoring biological tissues due to sensitivity to external noise and interference, which affects the signal-to-noise ratio and the quality of received signals.
Innovation Solution
An EM probe design featuring a cup-shaped cavity with a circumferential flange and layers of absorbing material to reduce external noise interference, improve signal quality, and enhance mechanical coupling to the skin, while allowing for airtight attachment and flexible positioning.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Object-affected harmful factors
If traditional EM probe designs are used, then the device structure is simple, but the probe is highly sensitive to external noise and interference
Solution Approach 1:
The patent applies absorbing material to convert harmful external electromagnetic noise into beneficial attenuation, where the noise energy is absorbed and dissipated as heat rather than interfering with the probe signals. This directly addresses the sensitivity to external noise while managing the added structural complexity through targeted material application.
Solution Approach 2:
The patent introduces an intermediary absorbing material layer between the external environment and the EM probe elements. This intermediary component mediates the interaction between external noise and the probe, filtering out harmful frequencies before they reach the sensitive sensing elements.
2Measurement precision
If absorbing material is added to reduce noise, then signal-to-noise ratio improves, but device complexity and manufacturing difficulty increase
Solution Approach 1:
The patent applies absorbing material selectively in specific locations around the EM probe rather than uniformly across the entire device. This local quality approach targets the regions most susceptible to external noise interference, improving signal reception quality while minimizing the total amount of material required and simplifying the manufacturing process.
3Reliability
If a circumferential flange is added for mechanical coupling, then attachment stability improves, but device complexity increases
Solution Approach 1:
The patent merges the circumferential flange structure with the absorbing material application, where the flange serves dual purposes: providing mechanical coupling stability and supporting the absorbing material that reduces external noise. This integration reduces overall device complexity by combining multiple functions into a single structural element.
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 design effectively isolates the EM probe from external noise, improves signal reception, and maintains accuracy in monitoring biological tissues by reducing parasitic crosstalk and environmental interference.
Implementation Method 1
layers of absorbing material to reduce external noise interference
Implementation Method 2
cup-shaped cavity with a circumferential flange... effectively isolates the EM probe from external noise
Implementation Method 3
The dielectric properties of the tissues may be a basis of detecting various pathologies and physiological trends
Data Source
Figure 1
Figure 2
Figure 3A
AI summary
An adhesive patch for attaching at least one EM probe to a subject's body, the adhesive patch comprising a planar member having at least one layer of radiation absorbing material and having at least one opening formed within the radiation absorbing material to allow the propagation of EM radiation via the opening from one side of the planar member to the other. The adhesive patch further comprises at least one layer of an adhesive attached over at least part of a bottom surface of the planar member, which adhesive layer may be applied so as to form a pattern on the bottom surface, the pattern comprising at least one adhesive-covered portion and at least one adhesive-free portion.