Contractile Tissue Analysis With Inverted Pillar Tracking

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Solution Overview

Problem

Existing contractile tissue engineering technologies face challenges in robustness against 'necking' behavior leading to failure, with limited design freedom in geometrical features of support pillars, and inefficient methods for tracking contractile properties in an upright microscope configuration.

Innovation Solution

A contractile tissue-based analysis device with a support structure comprising a planar base element and flexible support pillars, equipped with fiducial markers for optical detection, allowing for in-situ analysis of contractile tissue response to drugs using an inverted microscope configuration.

Engineering Contradictions & Design Principles

VSEngineering Contradiction Analysis

1Adaptability or versatility

If conventional molding approaches are used for support pillars, then manufacturing is simpler, but design freedom for geometrical features is limited

Engineering Contradiction:

Improvedesign freedomVSAvoidmanufacturing simplicity

Core Design Contradiction:

Adaptability or versatilityVSEase of manufacture

Solution Approach 1:

The patent changes the manufacturing method from conventional molding to 3D printing, which enables variable geometrical parameters and complex shapes that were not achievable with traditional molding approaches

Inventive Principle:

Principle #35Parameter changes

Solution Approach 2:

The support pillars are made from compliant materials such as hydrogels that can be 3D printed, combining material compliance with geometric complexity to achieve both design freedom and ease of manufacture

Inventive Principle:

Principle #40Composite materials

2Reliability

If support pillars are made rigid to prevent necking, then tissue robustness improves, but optical tracking precision deteriorates

Engineering Contradiction:

Improvetissue robustnessVSAvoidoptical tracking precision

Core Design Contradiction:

ReliabilityVSMeasurement precision

Solution Approach 1:

The patent optimizes the stiffness parameter of support pillars to achieve an optimal balance - not too rigid to prevent necking, but not too flexible to maintain optical tracking precision

Inventive Principle:

Principle #35Parameter changes

Solution Approach 2:

The patent replaces mechanical tracking methods with optical tracking using fiducial markers and imaging systems, enabling precise measurement of pillar deflection without physical contact

Inventive Principle:

Principle #28Mechanics substitution (Replace mechanical system)

3Ease of operation

If upright microscope configuration is used for tissue analysis, then tissue access is easier, but tracking efficiency deteriorates

Engineering Contradiction:

Improvetissue accessVSAvoidtracking efficiency

Core Design Contradiction:

Ease of operationVSProductivity

Solution Approach 1:

The patent inverts the microscope configuration from upright to inverted, placing the objective lens below the support structure to track pillar deflection from the bottom, which improves automated tracking efficiency while maintaining tissue accessibility from above

Inventive Principle:

Principle #13The other way round (Inversion)

4Measurement precision

If fiducial markers are added to support pillars for optical tracking, then measurement capability improves, but device complexity increases

Engineering Contradiction:

Improvetracking capabilityVSAvoidstructure complexity

Core Design Contradiction:

Measurement precisionVSDevice complexity

Solution Approach 1:

The patent merges the fiducial markers with the support pillar structure itself, integrating the tracking features into the existing components rather than adding separate tracking systems

Inventive Principle:

Principle #5Merging (Combining)

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 rapid, automated, and sterile analysis of contractile tissue behavior, particularly for drug screening, by facilitating optical tracking of pillar deflection without obstructing tissue access, improving robustness and design freedom.

Implementation Method 1

at least one, and preferably both, of said support pillars can flex along an axis Y-Y extending between the head portions of said pillars

Methodology Applied

Scientific EffectElasticity: Elasticity

Implementation Method 2

an optical detection device arranged on the side of the base element opposite to said support pillars, wherein the head portion of at least one support pillar, and preferably both support pillars, comprises at least one fiducial marker which can be detected by said optical detection device

Methodology Applied

Scientific EffectOptical detection: Light

Data Source

PatentUS20250334569A1Contractile tissue-based analysis device

Publication Date: 2025.10.30 SOPHION BIOSCIENCE AS

AI summary

A contractile tissue-based analysis device is provided, in which a strip of contractile tissue Is supported by support structure. The support structure comprises a substantially planar base element, and first and second support pillars extending from said base element. An optical detection device is arranged on the side of the base element opposite to said support pillars, and is arranged to capture Image data from at least one of the head portions of the support pillars. The motion of the support pillars induced by the strip of contractile tissue can thus be captured from below, I.e. through the planar base element.