Resilient Needle Section for Skin Piercing Tool
Find Innovative SolutionsGenerate Solutions
Solution Overview
Problem
Existing skin piercing tools lack an efficient mechanism for optimizing substance introduction into the skin, particularly in terms of minimizing resistance and improving the flexibility of needle penetration.
Innovation Solution
A skin piercing tool with a solid needle body featuring a resilient needle section that yields and tilts or pivots upon compressive stress, allowing for improved penetration and substance delivery, coupled with a drive module for repetitive extension and retraction.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Strength
If a solid needle is used for skin piercing, then the structural integrity and rigidity are improved, but the ability to yield and adapt to skin resistance is worsened
Solution Approach 1:
The needle is divided into multiple sections with different properties: a resilient needle section that can bend and adapt to skin resistance, and rigid needle sections that maintain structural integrity. This segmentation allows the needle to simultaneously achieve both flexibility for penetration and strength for maintaining form.
Solution Approach 2:
Different sections of the needle have different mechanical properties. The resilient needle section is specifically designed to be flexible and yield to resistance, while other sections maintain rigidity. This local differentiation of properties resolves the contradiction between overall strength and local adaptability.
2Adaptability or versatility
If a resilient needle section is added to allow bending movement, then the adaptability and penetration efficiency are improved, but the device complexity increases
Solution Approach 1:
The resilient needle section is integrated directly into the needle body as an inherent structural feature rather than adding separate components. The needle sections are coupled together to form a unified structure that combines resilience and rigidity, avoiding the need for additional complex mechanisms.
3Productivity
If the needle sections are made resilient to yield under compressive stress, then the substance introduction efficiency is improved, but the manufacturing precision requirements increase
Solution Approach 1:
The needle transitions from a static rigid structure to a dynamic structure where sections can move relative to each other under stress. This dynamic capability allows the needle to adapt to varying skin conditions during use, improving substance introduction efficiency while the coupling mechanism maintains sufficient alignment precision.
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
Enhances the local puncturing of skin, facilitating better substance introduction by reducing resistance and allowing for flexible needle movement, thereby improving the efficiency of substance delivery.
Implementation Method 1
The needle body has a needle section, which is resilient in response to a compressive stress against the piercing tip
Data Source
AI summary
The disclosure relates to a skin piercing tool for locally puncturing a human or an animal skin, comprising a piercing needle, which is embodied as solid needle, in the case of which a needle body has a proximal needle section and a distal needle section, in which a piercing tip is arranged, wherein the needle body has a needle section, which is resilient against the piercing tip in response to a compressive stress, wherein the resilient needle section is arranged on the needle body in the area of an angled needle section, in which adjacent needle sections assume an angle of less than 180° with one another. Further, a hand-held device for repeated local puncturing of a human or an animal skin is provided.