Needle Guide Assembly With Segmented Body For Multi-Needle Insertion
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Solution Overview
Problem
Existing needle guide technologies lack flexibility in positional and angular control, and are unable to accommodate the simultaneous insertion of multiple needles during cancer therapy procedures.
Innovation Solution
A robotically controlled needle guide assembly with a body comprising at least two separable portions that can actuate between a closed and open configuration, allowing for independent control of needle position and angle, and enabling the insertion and release of multiple needles.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Measurement precision
If a brachytherapy template grid is used to guide needles, then needle insertion positions are limited to discrete points with regular spacing, but this provides structural simplicity and ease of manufacture
Solution Approach 1:
The needle guide body is designed with movable portions that can be dynamically adjusted between different positions and angles. The guide body includes at least two portions that can move relative to each other, allowing the system to transition from a static grid structure to a dynamic, adjustable configuration that provides both precision and versatility in needle placement.
2Adaptability or versatility
If a robotically controlled needle guide with full positional control is used, then needle insertion position and angle can be precisely controlled, but the guide cannot accommodate multiple needles simultaneously because it is a closed channel
Solution Approach 1:
The needle guide body is segmented into at least two separate portions that can move relative to each other. This segmentation allows the closed channel to be opened into a multi-channel configuration, enabling multiple needles to be inserted simultaneously while maintaining precise robotic control. The segmented structure resolves the conflict between maintaining a controlled environment and accommodating multiple needles.
3Measurement precision
If a single needle guide with closed channel is used for robotic insertion, then precise control of single needle insertion is achieved, but the guide cannot be repositioned to insert subsequent needles
Solution Approach 1:
The needle guide body incorporates dynamic portions that can move between different configurations and positions. After one needle is inserted with high precision, the movable portions can be actuated to reposition the guide body or open the channel to accommodate the next needle, enabling multiple precise insertions without requiring complete removal and repositioning of the entire guide system.
Data Source
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AI summary
A needle guide assembly and an automated method of operating a needle guide assembly are provided. The assembly includes a needle guide body and a controller communicatively coupled to the needle guide body. The needle guide body includes at least two separable portions. The needle guide body is operable by the controller to actuate between a closed configuration and an open configuration. In the closed configuration, the at least two portions combine to define a channel therethrough for receiving a needle. In the open configuration, the at least two portions separate to release the received needle from the channel.