Suspension Container with Elongate Groove for Biological Isolation

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Solution Overview

Problem

Existing methods for isolating biological materials like nucleic acids or proteins from complex mixtures face challenges such as contamination, inhomogeneous distribution, and loss of suspension during agitation, which can lead to inaccurate diagnostic results and inefficiencies in high-throughput analysis.

Innovation Solution

A suspension container with an elongate groove at the bottom and a cover that is penetrable for multiple pipets or pipet tips, allowing for homogeneous distribution and parallelization of binding particles, reducing contamination and loss, and enabling efficient retrieval and dispensing of the suspension without opening the container.

Engineering Contradictions & Design Principles

VSEngineering Contradiction Analysis

1Ease of operation

If the container is opened for retrieving and dispensing binding particles, then the particles can be accessed and distributed, but contamination risk increases and suspension stability is compromised

Engineering Contradiction:
Improveaccess to binding particlesVSAvoidcontamination
Core Design Contradiction:
Ease of operationVSObject-affected harmful factors

Solution Approach 1:

The patent introduces a penetrable cover (septum) as an intermediary that allows pipets to access the suspension through a sealed barrier. This mediator enables particle retrieval while maintaining the seal, thus preventing contamination and preserving suspension stability throughout the procedure.

Inventive Principle:
Principle #24Intermediary (Mediator)

2Productivity

If multiple pipets are used for parallel dispensing, then throughput increases, but device complexity increases

Engineering Contradiction:
ImprovethroughputVSAvoidcontainer structure
Core Design Contradiction:
ProductivityVSDevice complexity

Solution Approach 1:

The container bottom is segmented into multiple zones with separate elongate grooves, each aligned with specific openings in the cover. This segmentation allows multiple pipets to independently access different suspension portions through designated openings, enabling parallel dispensing operations while organizing the complexity into manageable, structured sections.

Inventive Principle:
Principle #1Segmentation

Solution Approach 2:

The patent adds a vertical dimension to the access system by creating a penetrable cover with multiple openings at different positions. This allows pipets to approach the suspension from above through the cover rather than requiring side access, enabling parallel operations in a compact footprint and improving throughput without proportionally increasing horizontal space requirements.

Inventive Principle:
Principle #17Another dimension (Dimensionality change)

3Stability of the object's composition

If the container is agitated to maintain homogeneous suspension, then particle distribution improves, but loss of suspension material occurs

Engineering Contradiction:
Improvehomogeneous distributionVSAvoidsuspension material
Core Design Contradiction:
Stability of the object's compositionVSLoss of substance

Solution Approach 1:

The container employs a composite structure combining a sealed cover system with elongate grooves formed in the bottom. This composite design allows gentle agitation within the confined suspension volume while the sealed cover prevents spillage and material loss, maintaining homogeneous distribution without the harmful effects of open agitation.

Inventive Principle:
Principle #40Composite materials

4Quantity of substance

If elongate grooves are added to the container bottom, then residual volume is minimized and particle distribution is improved, but manufacturing complexity increases

Engineering Contradiction:
Improveresidual volumeVSAvoidcontainer fabrication
Core Design Contradiction:
Quantity of substanceVSEase of manufacture

Solution Approach 1:

The elongate grooves are pre-formed as integral features of the container bottom during manufacturing, rather than being added as separate components. This preliminary action incorporates the volume-minimizing geometry into the base manufacturing process, reducing residual suspension volume while avoiding the need for additional complex assembly steps.

Inventive Principle:
Principle #10Preliminary action

Data Source

PatentUS9932574B2Suspension container for binding particles for the isolation of biological material
Publication Date: 2018.04.03 ROCHE MOLECULAR SYSTEMS INC
  • US9932574B2 patent drawing
  • US9932574B2 patent drawing
  • US9932574B2 patent drawing

AI summary

A device, method and system is provided for binding particles for the separation and/or isolation of biological materials. In particular, a container is provided including a suspension of binding particles for the isolation of biological material, inner walls forming an elongate groove at the bottom of said container, and a cover having openings and/or being penetrable for a linear arrangement of multiple pipets or pipet tips, said openings being located above and parallel to said elongate groove.