Breast Lesion Localization Device with Slidable Control Rod
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Solution Overview
Problem
Current methods for localizing breast cancer lesions prior to surgery are complex and require multiple steps, often necessitating the use of multiple wires and hooks, which can be cumbersome and may lead to unnecessary removal of healthy tissue.
Innovation Solution
The development of a localization device with a cannula, actuation system, and control rod that allows for the precise insertion, rotation, and sliding of a localization element along with a wire, enabling one-handed operation and reducing tissue damage.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Reliability
If traditional localization methods using multiple wires and hooks are used, then lesion localization can be achieved, but the procedure becomes complex and increases risk of damaging healthy tissue
Solution Approach 1:
The patent combines multiple localization wires and hooks into a single integrated localization device. The device includes a stylet with a localization element at its distal end, allowing the entire localization function to be performed through one insertion rather than multiple separate wires and hooks, thereby simplifying the procedure while maintaining localization accuracy
Solution Approach 2:
The localization device serves multiple functions through a single instrument: it provides lesion localization, maintains wire positioning, and enables controlled deployment of the localization element. The stylet structure allows it to perform both as a delivery mechanism and as the localization element itself, reducing the need for separate components
2Measurement precision
If traditional multi-wire localization method is used, then lesion can be marked, but unnecessary healthy tissue removal may occur
Solution Approach 1:
The localization device concentrates the localization function at the precise distal end of the stylet where the localization element is positioned. This ensures that only the necessary area around the lesion is marked, avoiding unnecessary manipulation and potential damage to surrounding healthy tissue while maintaining accurate lesion identification
3Measurement precision
If complex localization procedures are used, then accurate localization can be achieved, but ease of operation decreases
Solution Approach 1:
The patent extracts the complex multi-step wire and hook deployment process and replaces it with a single stylet insertion and deployment mechanism. The localization element is pre-positioned on the stylet, allowing the operator to simply insert the stylet and release the localization element without managing multiple separate components, thereby maintaining accuracy while greatly improving ease of operation
Data Source
AI summary
A cannula defines a cannula axis and extends from the body of a localization device. An actuation system and a control rod are slidably and rotatably disposed within the body and the cannula. The control rod is operatively coupled to the actuation system for both slidable actuation and rotatable actuation.