Transdermal Microneedle Sensor for Painless Lactate Monitoring
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Solution Overview
Problem
Current lactate measurement methods are invasive, painful, and risky, and lack precision for dynamic changes in lactate concentration during exercise, making it difficult to adjust training intensity effectively.
Innovation Solution
A transdermal microneedle sensor that pricks through the skin to sample tissue fluid for continuous, painless, and minimally-invasive lactate concentration measurement, using lactate sensing enzymes and a signal processing unit to compare the measured values with predetermined thresholds to adjust exercise intensity.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Measurement precision
If blood sampling method is used to measure lactate concentration, then measurement precision is improved, but ease of operation deteriorates and object-affected harmful factors increase
Solution Approach 1:
The patent introduces tissue fluid as an intermediary medium to measure lactate concentration indirectly. Instead of directly sampling blood, the device measures lactate in tissue fluid which correlates with blood lactate levels, thereby achieving accurate measurement without invasive blood drawing. This resolves the contradiction by maintaining measurement precision while eliminating the operational complexity and harm of blood sampling.
2Measurement precision
If blood sampling method is used to measure lactate concentration, then measurement precision is improved, but object-affected harmful factors increase
Solution Approach 1:
The patent uses tissue fluid as a safe intermediary that can be accessed without invasive procedures. By measuring lactate in tissue fluid instead of blood, the device eliminates infection risks and pain associated with blood sampling, while still providing accurate lactate concentration data through the correlation between tissue fluid and blood lactate levels.
3Ease of operation
If conventional lactate measuring devices are used, then ease of operation is improved, but measurement precision deteriorates due to inability to capture dynamic changes
Solution Approach 1:
The patent implements continuous monitoring of tissue fluid lactate concentration, capturing dynamic changes in real-time during exercise. This continuous measurement approach maintains ease of operation while significantly improving measurement precision for dynamic lactate levels, overcoming the limitation of conventional discrete sampling methods that miss transient changes.
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
Enables accurate and safe monitoring of lactate levels, allowing athletes to optimize their training by adjusting exercise intensity based on real-time lactate concentration and change rates, thereby improving performance and reducing muscle acidity.
Implementation Method 1
using lactate sensing enzymes and a signal processing unit to compare the measured values with predetermined thresholds
Implementation Method 2
A transdermal microneedle sensor that pricks through the skin to sample tissue fluid for continuous, painless, and minimally-invasive lactate concentration measurement
Data Source
AI summary
The invention relates to a method for training adjustment in sports. The method may measure lactate concentrations in the body of a person by a lactate measuring device comprising a transdermal microneedles sensor. The method for training adjustment in sports includes steps of: measuring a lactate concentration value in the body of a user by the transdermal microneedles sensor; comparing the lactate concentration value with a predetermined value; and informing the user to reduce exercise intensity if the lactate concentration value is higher than the predetermined value, otherwise informing the user to increase exercise intensity if the lactate concentration value is lower than the predetermined value. The invention also relates to a lactate measuring device.