Movable Port Trocar With Guide Hole Locking Mechanism
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Solution Overview
Problem
Existing trocars lack the ability to easily arrange multiple surgical instruments at optimal positions for effective treatment due to fixed port relationships and lack of locking mechanisms, leading to potential instrument interference and unstable positioning during minimally invasive surgeries.
Innovation Solution
A trocar design featuring a plate member with a movable port that can be positioned relative to a cylindrical member using a guide hole with locking portions, allowing surgical instruments to be optimally arranged and secured, reducing interference and maintaining stable instrument positioning.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Quantity of substance
If a plate member with multiple ports is used to introduce multiple surgical instruments, then the number of surgical instruments that can be introduced through one trocar increases, but the ability to arrange instruments at optimal positions is limited due to fixed port positions
Solution Approach 1:
The movable port is designed to slide along the guide hole portion, transforming the fixed port configuration into a dynamic one. This allows the port position to be adjusted along the guide hole while maintaining connection to the cylindrical member, enabling flexible arrangement of surgical instruments at optimal positions
Solution Approach 2:
The trocar is divided into separate functional components: a plate member with fixed ports, a movable port that can slide, and a guide hole portion that defines the movement path. This segmentation allows the movable port to be independently positioned while maintaining the structural integrity of the overall device
2Adaptability or versatility
If a movable port is provided to enable position adjustment, then instrument arrangement flexibility is improved, but the port position may deviate easily without a locking mechanism
Solution Approach 1:
The locking portion is pre-formed on the movable port, and the guide hole portion includes corresponding locking engagement features. Before the movable port is positioned, the locking mechanism is already in place to secure it, preventing unintended deviation once the desired position is reached
Solution Approach 2:
The locking portion acts as an intermediary mechanism between the movable port and the guide hole portion. It mediates the relationship between position adjustability and stability by allowing movement during positioning while preventing deviation during use
3Device complexity
If multiple surgical instruments are inserted through fixed ports, then the structure is simple, but instrument interference may occur preventing optimal treatment positioning
Solution Approach 1:
By making the port movable along the guide hole, the system maintains relatively simple structure while enabling dynamic adjustment of instrument positions. This allows surgical instruments to be arranged without interference and positioned optimally for treatment
Data Source
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AI summary
A trocar includes a plate member having a first surgical instrument port formed therein, a movable port that is provided separately from the plate member, and a cylinder part that is provided at the plate member and attached to an incised wound.