Cannula Positioning Guide for Spinal Injection Accuracy
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Solution Overview
Problem
Current cannula systems face challenges in optimizing performance due to factors such as depth and volume of injection, fluidity and diffusion properties of therapeutic agents, anatomical sensitivity, and complexity of surgical procedures, leading to issues with backflow, placement accuracy, and ease of use.
Innovation Solution
The development of a cannula system with a proximal and distal region, featuring a delivery tube made from medical-grade materials like stainless steel or fused silica, a cannula positioning guide for precise placement, and a kit including an adhesive for secure attachment, enhancing accuracy, flexibility, and control during therapeutic agent delivery.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Productivity
If a cannula system is used for delivering therapeutic agents to target tissue, then therapeutic delivery is achieved, but backflow occurs reducing delivery efficiency
Solution Approach 1:
The cannula system applies preliminary anti-action by incorporating a backflow prevention mechanism that counteracts the backflow force before it can significantly reduce therapeutic delivery efficiency. The system proactively addresses the backflow issue through design features that resist reverse flow, ensuring more complete drug delivery to the target tissue.
2Ease of operation
If surgical procedures are simplified for ease of use, then ease of operation improves, but placement accuracy may deteriorate
Solution Approach 1:
The cannula system introduces an intermediary positioning guide that mediates between the simplified surgical procedure and precise placement requirements. This guide component facilitates accurate cannula positioning without requiring complex surgical techniques, thus maintaining ease of operation while ensuring placement accuracy.
3Manufacturing precision
If the cannula system includes additional components for improved control, then delivery precision improves, but device complexity increases
Solution Approach 1:
The cannula system applies segmentation by dividing the delivery system into distinct functional components: the cannula itself, the positioning guide, and the delivery mechanism. This segmentation allows each component to be optimized for its specific function while maintaining overall system precision, without requiring all components to be present for basic operation.
Data Source
AI summary
The present disclosure relates to cannula systems for delivery of a therapeutic agent to parenchymal tissue of a target subject. In certain embodiments, the cannula system is for delivery of a therapeutic agent to parenchymal tissue in the spine of a target subject. In certain embodiments, the cannula system includes a cannula positioning guide (CPG) useful in the delivery of a therapeutic agent to a localized target tissue of a subject. The guide may be used in a surgical suite or during a surgical procedure.