Bodily Fluid Collector With Chamber Isolation for Film-Free Mixing

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Solution Overview

Problem

Existing bodily fluid collectors require complicated operations involving film sealing and cutting to mix preservative fluid with collected bodily fluids, leading to potential cutting failures and increased costs.

Innovation Solution

A bodily fluid collector design that separates the collection member and storage member to create isolated chambers, allowing for easy engagement and separation to mix preservative fluid with collected bodily fluids without film sealing or cutting.

Engineering Contradictions & Design Principles

VSEngineering Contradiction Analysis

1Reliability

If a thin film is used to seal the storage cavity containing preservative fluid, then the preservative fluid can be isolated during collection, but the operation becomes complicated and costly

Engineering Contradiction:

Improveisolation of preservative fluidVSAvoidoperation complexity

Core Design Contradiction:

ReliabilityVSEase of operation

Solution Approach 1:

The storage cavity is divided into two separate chambers: a first chamber for receiving bodily fluid and a second chamber for storing preservative product. The collection member itself forms a partition wall between these chambers, eliminating the need for thin film sealing while maintaining reliable isolation during collection.

Inventive Principle:

Principle #1Segmentation

Solution Approach 2:

Instead of using a thin film to seal the preservative fluid in advance, the invention inverts the approach by using the collection member's structure to form the isolation barrier. The partition wall is integrated into the collection member, and isolation is achieved through structural design rather than auxiliary sealing materials.

Inventive Principle:

Principle #13The other way round (Inversion)

2Ease of operation

If a blade is used to damage the film for mixing preservative fluid with bodily fluid, then mixing can be achieved, but cutting failures may occur and operational difficulty increases

Engineering Contradiction:

Improvemixing capabilityVSAvoidmixing reliability

Core Design Contradiction:

Ease of operationVSReliability

Solution Approach 1:

The invention extracts and eliminates the blade component from the system. Instead of using a blade to damage a film, the mixing is achieved simply by separating the collection member from the storage member, which automatically communicates the two chambers without requiring any cutting or damaging actions.

Inventive Principle:

Principle #2Taking out (Extraction)

Solution Approach 2:

The system performs the mixing function automatically through the separation action itself. When the collection member is separated from the storage member, the chambers communicate and mixing occurs naturally, eliminating the need for separate mixing operations or blade mechanisms.

Inventive Principle:

Principle #25Self-service

3Reliability

If a thin film sealing structure is implemented, then preservative fluid isolation is ensured, but manufacturing cost and process complexity increase

Engineering Contradiction:

Improvesealing performanceVSAvoidmanufacturing cost

Core Design Contradiction:

ReliabilityVSEase of manufacture

Solution Approach 1:

The partition wall function is merged with the collection member structure itself. The collection member is designed with an integrated partition wall that simultaneously serves as the isolation barrier and the structural component for fluid collection, eliminating the need for separate thin film sealing structures and reducing manufacturing complexity.

Inventive Principle:

Principle #5Merging (Combining)

Solution Approach 2:

The collection member is given multiple functions: it collects bodily fluid, forms the partition wall for isolation, and enables mixing through separation. This multi-functional design eliminates the need for dedicated sealing components, simplifying the overall structure and reducing manufacturing costs.

Inventive Principle:

Principle #6Universality (Multi-functionality)

Data Source

PatentUS12408896B2Bodily fluid collector and bodily fluid collection method

Publication Date: 2025.09.09 XIAMEN ZEESAN BIOTECH

AI summary

The present disclosure relates to the technical field of medical instruments, in particular to a bodily fluid collector and a bodily fluid collection method. The bodily fluid collector of the present disclosure comprises a collection member and a storage member having a storage chamber. Moreover, the storage chamber of the storage member may be partitioned into a first chamber for receiving a bodily fluid and a second chamber for storing a preservative product separated from each other by fitting a lower end of the collection member with the storage member, such that the isolation of the bodily fluid from the preservative product is no longer dependent on the sealing of a thin film, but only needs to engage the collection member with the storage member, and also such that the mixing of the bodily fluid with the preservative product is no longer dependent on the damage of the thin film by a blade, but only needs to separate the collection member from the storage member. Since the operation is simple and convenient, it is possible to realize effectively simplifying the entire bodily fluid collection process.