Microcannula Introducer with Flared Head for Single Portal Injections
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Solution Overview
Problem
Multiple injections for skin augmentation using traditional methods can be painful and result in bruising due to the need for multiple needle entries, and existing microcannulas may be blunt or flexible, requiring a new entry point for each insertion.
Innovation Solution
A needle introducer system with a flared head and tapered neck, coupled with a beveled cannula body, maintains a single injection portal in the soft tissue, allowing multiple injections through a single portal without the need for repeated entry points, using a needle guide and cannula body configuration that facilitates the insertion and removal of needle cannulas.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Adaptability or versatility
If multiple needle entries are used for skin augmentation injections, then the filler can be delivered to multiple distinct injection sites, but pain and bruising increase with increasing injections
Solution Approach 1:
The microcannula introducer system enables a single introducer to serve multiple functions by allowing sequential insertion of different needle cannulas through the same portal. The introducer acts as a universal access point that can accommodate various filler delivery needles, eliminating the need for multiple separate entry points while delivering filler to multiple distinct injection sites within the soft tissue.
Solution Approach 2:
The microcannula introducer serves as an intermediary device between the external injection portal and the internal soft tissue target sites. It creates and maintains a stable access channel through the skin and subcutaneous tissue, mediating the delivery of multiple needle cannulas to different depths and locations without requiring repeated punctures of the skin surface.
2Object-affected harmful factors
If blunt and flexible microcannulas are used to reduce pain and bruising, then tissue trauma is minimized, but a new entry point is required for each insertion
Solution Approach 1:
The microcannula introducer performs the preliminary action of creating a stable access portal through the skin and into the soft tissue before any filler delivery needles are inserted. This pre-established portal remains open and stable, allowing multiple blunt needle cannulas to be sequentially inserted without requiring repeated skin punctures, thereby maintaining minimal tissue trauma while enabling multiple injection sites.
3Object-affected harmful factors
If a single injection portal is maintained for multiple injections, then pain and bruising are reduced, but the portal must remain stable for repeated needle insertions and removals
Solution Approach 1:
The microcannula introducer utilizes a flexible yet structurally stable design that maintains the injection portal open while allowing repeated insertion and removal of needle cannulas. The introducer's construction provides sufficient rigidity to hold the portal open against tissue collapse, yet flexibility to accommodate the movement and manipulation of multiple needles through the same access point without compromising portal integrity.
Data Source
AI summary
The present disclosure is directed to a needle introducer. The needle introducer includes a needle guide and a cannula body coupled to the needle guide. The needle guide includes a flared head and a tapered neck. The needle guide forms a first channel extending from a first opening in the flared head to a second opening in the tapered neck. The cannula body includes a beveled tip at a distal end of the cannula body. The cannula body forms a second channel extending from a first opening in a proximal end of the cannula body to a second opening in the distal end of the cannula body. The cannula body is coupled to the needle guide via the tapered neck of the needle guide to connect the first channel to the second channel. The cannula body is configured to maintain an injection portal in the soft tissue.