Medical System Time Delay Warning Signal Stability
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Solution Overview
Problem
The existing medical system for penetrating anatomical structures faces difficulties in interpreting signals due to sensitivity to specific changes in tissue conductivity, leading to untimely variations and artifacts in the warning signal, especially in situations with local inhomogeneities, which can result in unclear information for practitioners.
Innovation Solution
A medical system that introduces a time delay before emitting a warning signal based on detected electrical characteristics, allowing for modulation of sensitivity to occasional changes in tissue conductivity, thereby reducing unexpected signal variations and artifacts, and adjusting warning parameters such as frequency and amplitude accordingly.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Measurement precision
If the medical system is made highly sensitive to detect localized changes in tissue conductivity, then the ability to detect tissue variations is improved, but the reliability of the warning signal deteriorates due to unexpected variations and artifacts
Solution Approach 1:
The patent applies preliminary action by implementing a time delay mechanism before emitting the warning signal. The processing device detects electrical characteristics continuously, but the warning signal is emitted only after a predetermined time delay has elapsed. This allows the system to filter out transient artifacts and stabilize the signal before presentation to the practitioner, thereby maintaining detection sensitivity while improving signal reliability.
2Speed
If the warning signal responds immediately to electrical characteristic changes, then the responsiveness is improved, but the interpretability deteriorates due to multiple changes occurring within a short period
Solution Approach 1:
The system performs preliminary detection and analysis of electrical characteristics before emitting the warning signal. The time delay allows multiple rapid changes to occur during the delay period, and the system can average or stabilize these changes before presenting the final warning signal, thus maintaining responsiveness while improving interpretability.
Solution Approach 2:
The patent implements periodic action through the time delay mechanism, which creates a regular interval between detection and signal emission. This periodic structure allows the system to sample electrical characteristics over time and present a stabilized, averaged warning signal that is easier to interpret while still maintaining responsiveness to genuine tissue changes.
3Loss of information
If the system modulates warning signal parameters based on electrical characteristics, then the information content is improved, but the complexity of signal interpretation worsens
Solution Approach 1:
The patent applies parameter changes by modulating warning signal characteristics (such as frequency, amplitude, or duration) based on the detected electrical characteristics of tissues. This allows the system to convey multiple types of tissue information through a single warning signal, increasing information content while using established signal modulation techniques that do not significantly increase interpretation complexity.
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
This approach enhances the reliability of the medical system by stabilizing the warning signal and reducing misinterpretation, allowing for more accurate tissue differentiation and safer anatomical penetration.
Implementation Method 1
an electrical generator adapted to apply an electric current between the first and second contact surfaces, a processing device adapted to determine an electrical characteristic representative of the capacity of the tissue of the anatomical structure between the first and second contact surfaces to conduct the electric current
Data Source
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AI summary
The invention relates to a medical system including: - a body; - a first electrode; - a second electrode; - an electric generator; and - a processing device suitable for determining an electrical characteristic that represents the capacitance of the tissue of an anatomical structure between first and second contact surfaces of the first and second electrodes to conduct the electric current (M), and for emitting a warning signal corresponding to the determined electrical characteristic, the warning signal being intermittent. In said medical system, the processing device is suitable for detecting a variation in the electrical characteristic and for varying at least one variable parameter of the warning signal after a time delay (T), in accordance with the variation in the electrical characteristic, has elapsed.