Hollow Needle Pivotable Hub Bypassing Obstructions
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Solution Overview
Problem
Traditional hollow needle and needling systems face challenges in accessing points of interest when obstructed by implants, sensitive tissues, or mobility issues, requiring manual manipulation that can cause damage and safety risks, and often necessitate using longer or wider needles, leading to inhibited flow and increased trauma.
Innovation Solution
A needling system comprising a hollow needle with a pivoting mechanism and a hub that allows the needle to be positioned at an acute angle relative to the hub's longitudinal axis, secured by a locking ring and socket system, enabling the needle to bypass obstacles while maintaining a straight-line approach.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Adaptability or versatility
If a traditional straight needle is used, then the needle structure is simple and easy to manufacture, but the needle cannot access points of interest when obstructed by implants or sensitive tissues
Solution Approach 1:
The needle assembly is made dynamically adjustable through a pivoting mechanism that allows the needle to be repositioned from a straight coaxial position to an angled position relative to the hub. This enables the needle to adapt its path to access points of interest while avoiding obstructions such as implants or sensitive tissues, resolving the contradiction between adaptability and structural simplicity
Solution Approach 2:
The needle system is divided into separate functional components: a hub and a needle assembly connected by a pivoting mechanism. This segmentation allows the needle to be independently positioned and angled relative to the hub, providing the ability to navigate around obstructions while maintaining a relatively simple overall structure
2Adaptability or versatility
If manual manipulation of the needle is performed to avoid obstructions, then access to points of interest can be achieved, but damage and safety risks increase
Solution Approach 1:
The controlled pivoting mechanism provides a safe and precise method to adjust the needle angle without requiring manual manipulation of the sharp needle. The mechanism allows the operator to reposition the needle along a predetermined arc, avoiding uncontrolled movements that could cause trauma to the patient or healthcare worker while still achieving the ability to navigate around obstructions
Solution Approach 2:
The pivoting mechanism acts as an intermediary between the operator's intent and the needle's final position. Instead of directly manipulating the sharp needle, the operator controls the hub or needle assembly through a controlled angular movement mechanism, reducing the risk of accidental injury while maintaining the ability to avoid obstructions
3Length of stationary object
If longer or wider needles are used to reach deep points, then deeper penetration is achieved, but flow is inhibited and trauma increases
Solution Approach 1:
The ability to dynamically angle the needle allows for more efficient access to deep points of interest by navigating around obstructions rather than using excessively long needles. This maintains optimal needle length and diameter for fluid flow while achieving the necessary penetration depth through strategic angular positioning
Data Source
AI summary
A needling system, for use in areas where thin hollow needles are used to inject or aspirate fluids and gases, is provided and comprises a thin, rigid tube body needle that is open on both ends and throughout the length with one sharp end. The needle body and hub are designed such that the needle has a ball end that fits within a socket of the hub forming a seal and allowing the needle to be oriented non-colinearly and non-parallel to the central axis of the hub. Needle orientation relative to the hub can be limited from a conical volume to a planar or multi planar angular orientations. The needle so configured allows the user to circumvent an obstacle that otherwise inhibit direct linear access to a point-of-interest by providing a device that can fit around or between obstructions providing optimal direct path towards the desired therapy delivery point.