Marker Inserter Locking Mechanism for Precise Placement
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Solution Overview
Problem
Conventional marker insertion devices are prone to premature actuation, leading to inaccurate and imprecise marker placement due to design flaws and handling issues during packaging, transportation, and preparation, compromising the integrity and security of the deployment mechanism.
Innovation Solution
A marker insertion device with a housing, trigger, cannula, and stylet mechanism that includes a locking mechanism to prevent accidental actuation, ensuring precise marker placement by transitioning through defined positions to securely deploy the marker.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Device complexity
If a conventional marker insertion device is designed with a simple deployment mechanism, then the device complexity is reduced, but the reliability of marker placement deteriorates due to premature actuation
Solution Approach 1:
The deployment mechanism is segmented into distinct functional components: a trigger assembly for user activation, a cannula for marker delivery, and a stylet for positioning. Each component has a specific function and controlled interaction points, preventing premature actuation while maintaining operational simplicity.
Solution Approach 2:
The cannula acts as an intermediary between the trigger and the marker. It provides a controlled pathway that only allows marker deployment when the trigger is properly actuated, preventing accidental release while maintaining device simplicity.
2Reliability
If the marker insertion device includes a locking mechanism to prevent accidental actuation, then the reliability of marker placement is improved, but the device complexity increases
Solution Approach 1:
The locking function is merged into the trigger assembly itself rather than being a separate mechanism. The trigger's structural design inherently provides locking capability through its interaction with the cannula and housing, eliminating the need for additional locking components.
Solution Approach 2:
The trigger assembly performs its own locking function through its mechanical design. When the trigger is actuated, it automatically engages the cannula in a controlled manner, and when released, it automatically disengages without requiring separate locking or unlocking mechanisms.
3Ease of operation
If the trigger assembly allows free movement, then the ease of operation is improved, but the manufacturing precision of marker placement deteriorates due to uncontrolled actuation
Solution Approach 1:
The trigger assembly transitions from a static, constrained component to a dynamic, controlled actuator. It is designed to move freely during normal operation for ease of use, but incorporates controlled engagement points with the cannula that ensure precise marker placement only when intentionally actuated.
Data Source
AI summary
A device, and related systems and methods, for inserting a marker into a patient's body. The device may comprise a retention mechanism to hold the device in a first, undeployed, state. The device may be inserted into a patient's body in the first state, transitioned by the user into a second state wherein the retention mechanism is overcome, and then transition the device into a third state to deliver a marker to a precise location. The device may then be removed from the patient's body.