Protruding Biosensor Lid Design for Accurate Bio-Acoustic Detection
Find Innovative SolutionsGenerate Solutions
Solution Overview
Problem
Existing biological information acquisition devices have a low degree of close contact with the living body, resulting in inaccurate acquisition of respiratory sound and heart sound waveforms due to the positioning and design of piezoelectric elements.
Innovation Solution
The device incorporates a main body with a protruding biosensor and a deformable portion that supports a rigid portion, allowing for enhanced close contact with the body, along with a lid that surrounds the biosensor for improved attachment and detachment, and includes a bio-acoustic sensor with a vibration plate and piezoelectric element for accurate sound detection.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Measurement precision
If the piezoelectric element is disposed between the substrate and covering plate as in conventional biosensors, then the device structure is simple and easy to manufacture, but the degree of close contact with the living body is low resulting in inaccurate biological information acquisition
Solution Approach 1:
The device is divided into a main body portion and a lid portion that can be attached and detached. The biosensor is specifically disposed in the main body portion to protrude toward the living body, allowing the lid to be removed for sensor replacement or maintenance while keeping the main body structure intact.
Solution Approach 2:
The biosensor is designed to protrude from the main body toward the living body, creating a localized contact region with higher compliance. This allows the contact portion to adapt to body surface irregularities while the rest of the device maintains its structural integrity.
2Measurement precision
If the biosensor protrudes from the facing surface to improve close contact with the living body, then measurement accuracy improves, but the device becomes more complex and harder to manufacture
Solution Approach 1:
The device is segmented into a main body portion containing the protruding biosensor and a separate lid portion. This segmentation allows the protruding sensor to be manufactured and tested independently before final assembly, simplifying the manufacturing process despite the complex protruding geometry.
Solution Approach 2:
The lid is designed to be attachable and detachable from the main body, allowing dynamic reconfiguration of the device. This enables easy access to the protruding biosensor for maintenance or replacement without damaging the delicate protruding structure, thereby improving ease of manufacture and assembly.
3Ease of operation
If the lid is made attachable and detachable for ease of operation, then maintenance and sensor replacement become easier, but the device structure becomes more complex
Solution Approach 1:
The lid is designed with dynamic attachable and detachable connection to the main body, allowing users to easily access the biosensor for maintenance or replacement. This dynamic feature is achieved through simple mechanical interfaces that balance ease of operation with minimal structural complexity.
Solution Approach 2:
The detachable lid design serves multiple functions: it allows easy access to the biosensor for maintenance, enables sensor replacement, and provides a simple means to open and close the device. This multi-functionality reduces the need for separate mechanisms for each function, thereby limiting the increase in overall device 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 configuration enables high-accuracy acquisition of biological information by maintaining close contact with the body and reducing vibration loss, ensuring continuous and precise detection of biological sounds and waveforms.
Implementation Method 1
a piezoelectric element that is disposed between the substrate and the covering plate to acquire a respiratory sound waveform
Data Source
AI summary
A biological information acquisition device includes a main body including a facing surface facing a living body when mounted, a first biosensor provided in the main body such that at least a portion of the first biosensor protrudes from the facing surface of the main body and including a first contact surface contactable with the living body, and an adhesive tape attached to the facing surface of the main body and having a thickness less than a protrusion amount of the first biosensor from the facing surface.