Palm Biomarker Collection Device With Light-Tight Optical Chamber
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Solution Overview
Problem
Existing non-invasive biomarker collection devices face issues with ambient light interference, lack of compactness, and reduced accuracy due to non-anatomical data collection points, such as the wrist or fingers, leading to noise in photodetector results and discomfort for users.
Innovation Solution
A device designed for the palm of the hand with a convex anatomical body and a medium-sized hollow for light passage, incorporating a photoelectric sensor and LEDs, with a calibration system to ensure accurate and comfortable data collection without ambient light interference, suitable for multiple users.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Measurement precision
If data collection is carried out using existing non-invasive devices with photodetectors, then biomarker measurement is achieved, but ambient light causes noise in the photodetectors interfering with the results
Solution Approach 1:
The patent extracts and eliminates the harmful ambient light factor by implementing a light-tight chamber design that completely isolates the photodetector from external light sources. The chamber includes light-tight seals and positioning features that prevent any ambient light from reaching the sensor during measurement, thereby removing the source of interference rather than trying to filter or compensate for it.
Solution Approach 2:
The device applies preliminary anti-action by pre-positioning the palm against the device surface before measurement begins, ensuring that the measurement area is already isolated from ambient light. The light-tight chamber is designed to block light before it can reach the photodetector, and the firm palm positioning ensures consistent optical coupling is established in advance of the actual measurement process.
2Adaptability or versatility
If the device uses a thimble configuration with spring adjustment for different finger anatomies, then adaptability to different users is achieved, but the device is not compact and has areas without covering where ambient light causes noise
Solution Approach 1:
The patent applies universality by designing a single, standardized palm interface that works for all users regardless of hand size or anatomy. The large flat measurement surface and light-tight chamber design provide universal adaptability without requiring multiple configurations or adjustments, making the device both compact and universally applicable to different palm sizes and shapes.
Solution Approach 2:
The device incorporates a flexible palm rest surface that can conform to different palm sizes and shapes, providing anatomical adaptability without adding bulk. This flexible surface maintains consistent optical coupling across various users while keeping the overall device structure compact and light-tight.
3Measurement precision
If the device places the photodetector close to the measurement point, then measurement accuracy is improved, but the device structure becomes more complex requiring protections against ambient light
Solution Approach 1:
The patent merges the light-tight chamber, photodetector housing, and palm positioning structure into a single integrated compact unit. The chamber serves multiple functions: it houses the photodetector, blocks ambient light, and provides the measurement interface. This integration achieves close photodetector placement for high accuracy while avoiding complex separate protection structures.
Solution Approach 2:
The light-tight chamber uses thin, flexible light-blocking materials that conform to the palm surface, providing effective ambient light protection without adding significant structural complexity or bulk. The chamber design is simple yet effective, using basic light-tight sealing principles rather than complex multi-layer protection systems.
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 device provides accurate, comfortable, and cost-effective non-invasive biomarker collection by minimizing ambient light noise and ensuring universal calibration across different individuals, maintaining optimal blood flow and comfort during data acquisition.
Implementation Method 1
a detector comprising a photoelectric sensor
Implementation Method 2
a source comprising LEDs that emit light in wavelengths from 1640 nm to 1665 nm
Data Source
AI summary
A device (1) whose body (2) due to its convex design (5) makes it anatomical with the palm of the hand of the target individual, who will place it on a collection adapter (10) with medium-sized hollow (12), conducive to the concentration of blood without interrupting the blood flow, which will be submitted for analysis of biomarkers performed in the chamber (9) of the optical system inside the body (2).