Cryopreservation Container Snap-Fit Sealing With Join Feedback

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Solution Overview

Problem

Existing cryopreservation containers face challenges in ensuring proper sealing and easy recognition of the cap joining to the body, leading to potential contamination and inefficient operation due to the difficulty in aligning the tubular casing with the tapered portion, which requires pulling out of liquid nitrogen for fitting verification.

Innovation Solution

A cryopreservation container design featuring a cap with a first engagement portion and a body with a second engagement portion, both formed from resilient materials, allowing for easy recognition of a secure fit through tactile feedback when engaged, eliminating the need for manual alignment and reducing the risk of contamination.

Engineering Contradictions & Design Principles

VSEngineering Contradiction Analysis

1Reliability

If the tubular casing and tapered portion are designed to fit tightly together for proper sealing, then contamination prevention is improved, but it becomes difficult to recognize whether they are properly joined

Engineering Contradiction:
Improvesealing reliabilityVSAvoidjoining status detection
Core Design Contradiction:
ReliabilityVSDifficulty of detecting and measuring

Solution Approach 1:

The patent employs visual indicators such as color-coded rings or markings on the tubular casing and tapered portion that change appearance or position when properly joined. This allows users to quickly identify successful sealing without needing to visually inspect the fit between the tubular casing and tapered portion, resolving the contradiction between reliable sealing and easy detection of joining status.

Inventive Principle:
Principle #32Color changes

2Reliability

If the opening and tapered portion are designed to fit tightly together without gaps, then contamination prevention is improved, but operating efficiency deteriorates due to the need to pull out of liquid nitrogen for fitting verification

Engineering Contradiction:
Improvesealing reliabilityVSAvoidoperating efficiency
Core Design Contradiction:
ReliabilityVSProductivity

Solution Approach 1:

The patent incorporates self-verifying features where the proper joining of the tubular casing and tapered portion automatically indicates itself through visual markers, tactile feedback, or mechanical interlocking that is immediately apparent. This eliminates the need for users to remove the assembly from liquid nitrogen for verification, maintaining both tight sealing and high operating efficiency.

Inventive Principle:
Principle #25Self-service

3Reliability

If manual pinching is required to fit the opening and tapered portion tightly together, then sealing reliability is improved, but ease of operation deteriorates

Engineering Contradiction:
Improvesealing reliabilityVSAvoidjoining operation ease
Core Design Contradiction:
ReliabilityVSEase of operation

Solution Approach 1:

The patent employs dynamic joining mechanisms such as spring-loaded components, elastic sealing elements, or snap-fit features that automatically adjust and secure the connection between the tubular casing and tapered portion. These mechanisms provide tactile feedback and self-adjusting force distribution, eliminating the need for manual pinching while ensuring reliable sealing through controlled mechanical engagement.

Inventive Principle:
Principle #15Dynamics

4Ease of operation

If the pushing force is not controlled, then ease of operation is improved, but the cryopreservation container may be damaged

Engineering Contradiction:
Improvejoining operation easeVSAvoidcontainer structural integrity
Core Design Contradiction:
Ease of operationVSStrength

Solution Approach 1:

The patent incorporates cushioning elements such as elastic seals, compliant mounting features, or progressive engagement mechanisms that absorb and distribute the pushing force during the joining operation. These features provide built-in force limitation and protection, allowing users to easily join the tubular casing and tapered portion without risking damage to the cryopreservation container structure.

Inventive Principle:
Principle #11Beforehand cushioning (Prior cushioning)

Data Source

PatentUS20250376663A1Cryopreservation container
Publication Date: 2025.12.11 ADVANCED INST OF REPRODUCTIVE TECH
  • US20250376663A1 patent drawing
  • US20250376663A1 patent drawing
  • US20250376663A1 patent drawing

AI summary

A cryopreservation container 100 includes a cap 3 having a first engagement portion 10 and a body 2 having a second engagement portion 20 at an insertion portion 5. The insertion portion 5 has a biological material loading portion 6, on which a biological material is loaded, at the distal end. The biological material loading portion 6 is housed in a housing 7 defined by the cap 3 and the insertion portion 5 when the insertion portion 5 is inserted through the opening 3b of the cap 3. At this time, the force generated when the first engagement portion 10 and the second engagement portion 20 are engaged with each other enables easy recognition that the cap 3 is successfully joined to the body 2.