Puncture-Assistance Tool With Movable Skin-Tension Fixing Parts
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Solution Overview
Problem
Existing puncture assisting tools cause skin depression during needle insertion, stimulating pain sensory nerves due to pressure application.
Innovation Solution
A puncture assisting tool with a first and second fixing part that are movable relative to each other, creating tension in the skin to prevent depression during needle insertion.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Ease of operation
If pressure is applied by the injection needle during insertion, then the needle can be inserted into the skin, but the skin becomes depressed and pain sensory nerves are stimulated
Solution Approach 1:
The skin is stretched and tensioned in advance before needle insertion using the first and second fixing parts. This preliminary action creates a tensioned state that prevents skin depression during the subsequent needle insertion, thereby eliminating the harmful effect of pain while maintaining the ability to insert the needle
2Object-affected harmful factors
If the skin is stretched and tensioned before needle insertion, then skin depression is prevented, but the device structure becomes more complex
Solution Approach 1:
The device is divided into distinct functional components: first fixing part, second fixing part, and injection needle. Each component has a specific function - the fixing parts handle skin tensioning while the needle handles puncture. This segmentation allows the tensioning mechanism to be implemented separately and independently, reducing overall device complexity while achieving the skin depression prevention function
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
Prevents skin depression and subsequent pain by tensioning the skin, allowing needle insertion without stimulating pain sensory nerves.
Implementation Method 1
the first fixing part being movable relative to the second fixing part so as to pull the skin between the first fixing part and the second fixing part
Data Source
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AI summary
The present invention has an object to prevent skin from being depressed during insertion of a needle into the skin. A puncture assisting tool (1) includes: a first fixing part (10A) that is fixed to a first region of skin; and a second fixing part (10B) that is fixed to a second region of the skin; the first fixing part (10A) being movable relative to the second fixing part (10B) so as to pull the skin between the first fixing part (10A) and the second fixing part (10B).