Neuromuscular Blockade Patch with Automated Sensor Feedback
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Solution Overview
Problem
Current methods for monitoring neuromuscular blockade in patients during surgery are subjective and prone to high margins of error, with existing systems being cumbersome and time-consuming, leading to potential delays and increased risk of post-operative residual paralysis.
Innovation Solution
A neuromuscular blockade monitoring system comprising a patch device with electrodes and sensors that provide electrical stimulation and measure muscle responses, coupled with a computing device for automated data analysis and recording, allowing for noninvasive and efficient monitoring of neuromuscular blockade levels.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Measurement precision
If the Train of Four (TOF) test using a peripheral nerve stimulator (PNS) is used to monitor neuromuscular blockade, then the level of paralysis can be evaluated, but the evaluation is subjective and prone to high margins of error due to manual visual or tactile assessment
Solution Approach 1:
The patent replaces the manual mechanical assessment method (visual or tactile evaluation of muscle twitches) with an automated sensor-based detection system. The sensor objectively measures muscle response to electrical stimulation, eliminating subjective human judgment and significantly improving measurement precision while reducing operator burden.
Solution Approach 2:
The system enables self-service monitoring where the device automatically performs stimulation, detection, and analysis without requiring continuous manual intervention from the anesthesiologist. The automated nature of the system allows for continuous objective monitoring while freeing the operator to focus on other critical tasks.
2Reliability
If existing monitoring systems are used, then neuromuscular blockade levels can be monitored, but the systems are cumbersome and time-consuming, leading to potential delays in surgery
Solution Approach 1:
The patent employs a flexible patch-like sensor that can be quickly applied to the patient's skin. This thin-film design simplifies the monitoring setup process compared to traditional rigid electrode systems, reducing application time and eliminating the need for complex wiring arrangements while maintaining reliable signal detection.
Solution Approach 2:
The system integrates multiple functions (stimulation delivery, signal detection, and data analysis) into a unified automated monitoring platform. This consolidation eliminates the need for separate manual operations and equipment setup, significantly reducing the time required to implement monitoring while ensuring reliable neuromuscular blockade assessment.
3Ease of operation
If the TOF ratio is evaluated qualitatively by manual assessment, then the monitoring process is simple to set up, but the margin of error is unacceptably large making it impossible to objectively determine differences above 40%
Solution Approach 1:
The patent replaces manual mechanical assessment with automated sensor-based detection that provides objective quantitative measurements. The sensor system can precisely detect and differentiate subtle muscle response variations, enabling accurate determination of TOF ratios and identification of clinically significant changes that are imperceptible to manual evaluation.
Solution Approach 2:
The system provides continuous real-time feedback through automated sensor monitoring of muscle responses. This objective feedback mechanism allows for precise tracking of neuromuscular blockade levels and reversal, enabling the anesthesiologist to make informed decisions based on accurate quantitative data rather than subjective qualitative assessment.
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 system provides accurate, automated, and efficient monitoring of neuromuscular blockade levels, reducing the risk of post-operative residual paralysis and minimizing surgical delays by offering a simple and quick application process.
Implementation Method 1
a stimulator device operatively coupled to the patch device and configured to provide at least one electrical signal to the at least two electrodes to stimulate a muscle motor point
Implementation Method 2
at least one sensor arranged between the at least two electrodes on the unitary patch body... to receive a signal from the at least one sensor related to a result of the stimulation of the muscle motor point
Data Source
AI summary
Embodiments relate to devices, systems and methods for monitoring neuromuscular blockage. In an embodiment, a neuromuscular blockage monitoring system comprises a patch device comprising a unitary patch body, at least two electrodes and at least one sensor, the at least one sensor arranged between the at least two electrodes on the unitary patch body; and a stimulator device operatively coupled to the patch device and configured to provide at least one electrical signal to the at least two electrodes to stimulate a muscle motor point and to receive a signal from the at least one sensor related to a result of the stimulation of the muscle motor point.