Artificial Tissue Apparatus for Non-Invasive Bioparameter Testing
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Solution Overview
Problem
There is a need for an efficient method to test the reliability of non-invasive bioparameter measuring devices, which are used to measure various physiological parameters such as glucose, blood pressure, and oxygen saturation, without the use of invasive procedures.
Innovation Solution
An apparatus comprising artificial tissue made of an elongated sponge wrapped in electrically conductive hydrogel skin, connected to a pulsatile pump and tubes simulating blood flow, is used to test the reliability of non-invasive medical devices by mimicking human tissue and blood flow, allowing for the measurement of multiple bioparameters.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Measurement precision
If real human tissue is used for testing non-invasive bioparameter devices, then measurement accuracy is improved, but ethical concerns and logistical complexity increase
Solution Approach 1:
The patent creates artificial tissue samples that replicate the optical and physical properties of human tissue without using actual human material. The artificial tissue is constructed with layers including skin-like material, fat layers, and muscle layers, each designed to mimic corresponding human tissue properties, thereby enabling accurate device testing while eliminating ethical and logistical issues associated with real human tissue.
2Measurement precision
If complex artificial tissue structures are created to simulate human tissue, then device testing accuracy is improved, but manufacturing complexity increases
Solution Approach 1:
The artificial tissue is divided into distinct functional layers including skin-like material, fat layers, and muscle layers. Each layer is manufactured separately using appropriate materials and processes, then assembled to create the complete artificial tissue structure. This segmentation allows for simplified manufacturing of individual components while maintaining the overall complexity needed for accurate device testing.
3Adaptability or versatility
If multiple bioparameters are measured simultaneously, then device versatility is improved, but testing time and complexity increase
Solution Approach 1:
The artificial tissue structure is designed as a universal testing platform that simultaneously supports measurement of multiple bioparameters including glucose, oxygen saturation, blood pressure, and other physiological parameters. The tissue layers and accompanying fluid system are configured to enable concurrent measurement of various parameters by multiple devices, thereby improving versatility while managing testing time through parallel evaluation capabilities.
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 solution enables the efficient testing and validation of non-invasive medical devices by simulating human tissue and blood flow, ensuring the accuracy and reliability of the devices in measuring multiple bioparameters, thereby improving the quality control process during manufacturing.
Implementation Method 1
a pulsatile pump, including a reciprocating piston, configured to generate a pulsatile flow of the reddish liquid
Implementation Method 2
an elongated sponge wrapped in an electrically conductive hydrogel skin
Implementation Method 3
each noninvasive device of the batch having a light source (LED) and at least one optical sensor
Data Source
AI summary
Apparatus for testing bioparameter monitoring devices includes artificial organs that comprise an elongated sponge wrapped in electrically conductive hydrogel skin, inlet and outlet tubes having a reddish liquid flowing therein and a pulsatile pump configured to generate a pulsatile flow of the liquid. A valve has a variable opening. For each artificial organ: the inlet tube extends out of the sponge and connects eventually to the pulsatile pump, the inlet tube penetrating the elongated sponge so as to extend to a tip of the elongated sponge at a distal end of the inlet tube, and the outlet tube extends out of the elongated sponge and connects eventually to the pulsatile pump at a proximal end of the outlet tube, the outlet tube penetrating the sponge so as to extend to a tip of the elongated sponge at a distal end of the outlet tube.