Detachable Needle Holder for Multi-Needle Positioning
Find Innovative SolutionsGenerate Solutions
Solution Overview
Problem
Current needle positioning apparatuses for minimally invasive puncture treatments face challenges in accurately positioning multiple needles, often requiring lengthy trial and error processes, causing patient discomfort and increased operation time, and are limited in their ability to handle multiple needle placements due to interference issues during insertion.
Innovation Solution
A needle positioning apparatus with a detachable needle holder and a base unit providing two degrees of freedom for precise needle placement, allowing for the secure attachment and release of multiple needles, enabling efficient and accurate positioning of multiple needles without interference during procedures.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Measurement precision
If a needle positioning apparatus with a fixed needle holder is used, then single needle positioning accuracy is improved, but multiple needle placement capability deteriorates due to interference from previously inserted needles
Solution Approach 1:
The needle holder is divided into two separable parts: a first part that remains attached to the positioning apparatus and a second part that can be detached. This segmentation allows the second part to be removed after needle insertion, preventing interference with subsequent needle placements while maintaining positioning accuracy for each individual needle
Solution Approach 2:
The second part of the needle holder is extracted (detached) from the positioning apparatus after needle insertion. This extraction removes the potential source of interference for subsequent needle placements, enabling versatile multi-needle procedures while preserving the precision positioning capability for each needle
2Adaptability or versatility
If the main body is retracted to release the needle holder for multiple needle procedures, then multiple needle placement capability is improved, but device complexity increases due to complex movement requirements
Solution Approach 1:
Instead of retracting the entire main body, only the second part of the needle holder is segmented and detached. This localized segmentation achieves multiple needle placement capability without requiring complex main body retraction mechanisms, thereby maintaining device simplicity
3Adaptability or versatility
If trial and error needle positioning is performed, then adaptability to different target positions is improved, but operation time increases and patient discomfort increases
Solution Approach 1:
The positioning apparatus calculates and determines the insertion directions for multiple needles in advance, before the actual insertion procedure. This preliminary action eliminates the need for trial and error positioning during the procedure, significantly reducing operation time and patient discomfort while maintaining full adaptability to different target positions
Data Source
AI summary
A positioning apparatus including a needle holder having a through hole for regulating needle placement and movement, a needle positioning unit, and an engagement member that fixes a position of the needle holder with respect to the needle positioning unit. The needle holder is either least partially detachably attached to the needle positioning unit or deformable. The positioning apparatus may be designed to accommodate the placement of multiple needles.