Retaining Tool for Syringe Thawing
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Solution Overview
Problem
Viscous materials cooled to 0° C. or lower tend to generate air bubbles when thawed to room temperature, disrupting their consistency and usability.
Innovation Solution
A retaining tool with an insertion portion and a solid portion made of non-crosslinked foamed polyethylene is used to slowly thaw syringes, preventing rapid temperature changes and air bubble formation. The tool set includes a surrounding member with low thermal conductivity and a cold storage agent to maintain temperature stability during transportation.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Loss of time
If the viscous material is thawed rapidly from 0° C. or lower to room temperature, then the thawing process is faster, but air bubbles are generated and consistency is disrupted
Solution Approach 1:
The patent introduces a retaining tool as an intermediary device between the frozen syringe and the external environment. This tool includes a solid portion made of material with specific thermal properties that mediates the heat transfer during thawing, preventing rapid temperature changes and air bubble formation while still enabling the thawing process to occur.
Solution Approach 2:
The patent changes the thermal parameters of the retaining tool by selecting materials with specific thermal conductivity values. The solid portion is made of material with thermal conductivity of 0.022 W/m·K or less, which controls the rate of heat transfer and prevents rapid thawing that would cause air bubbles, while still allowing controlled temperature rise from frozen state to room temperature.
2Temperature
If dry ice is used inside a container to maintain temperature, then the temperature control is effective, but the container weight increases
Solution Approach 1:
The patent changes the material parameters of the retaining tool by selecting foam materials with specific thermal conductivity values (0.022 W/m·K or less). This allows the tool to provide effective temperature control during transportation and thawing without requiring heavy dry ice, thereby reducing the overall weight while maintaining temperature stability.
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
The solution effectively prevents air bubble generation and maintains the viscous material's consistency during thawing, ensuring continuous application and product performance by controlling temperature fluctuations and external forces.
Implementation Method 1
The solid portion is formed from a first end portion on the side where the insertion portion is located to a second end portion on the opposite side of the first end portion in the direction in which the viscous material is inserted into the insertion portion, and contains non-crosslinked foamed polyethylene
Implementation Method 2
a surrounding member that surrounds the syringe and a cold storage agent
Data Source
AI summary
A retaining tool is to be arranged in a housing space of a packing container and has: an insertion portion into which a syringe containing a material storage container that stores a viscous material can be inserted in an upright posture; and a solid portion that is provided around the insertion portion and forms the insertion portion. The solid portion is formed from a first end portion at which the insertion portion is positioned in the direction in which the viscous material is inserted into the insertion portion to a second end portion that is on the opposite side from the first end portion; includes a non-crosslinked polyethylene foam; and prevents bubbling when the viscous material as frozen at 0° C. or below thaws. The present invention also provides a usage method for the retaining tool, a syringe transport tool set, and a transport method for a syringe.