Surgical Instrument Manipulation Part Bending Control
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Solution Overview
Problem
Conventional surgical instruments with unbendable end tools face difficulties in accessing surgical sites and performing various surgical actions, leading to non-intuitive operation and prolonged skill acquisition for surgeons due to mismatched motions between the end tool and manipulation part.
Innovation Solution
An instrument with a rotatable end tool and a manipulation part that includes a power transmission system with jaw wires and a connecting part, allowing intuitive control of the end tool's movements through a ring handle, ensuring that the manipulation direction matches the operation direction of the end tool.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Adaptability or versatility
If the end tool is made bendable to access surgical sites, then the ability to perform various surgical actions is improved, but the operation becomes non-intuitive and skill acquisition time increases
Solution Approach 1:
The patent inverts the traditional control mechanism by making the manipulation part bendable instead of the end tool. The manipulation part includes a bending section that can change its bending degree, allowing the operator to intuitively control the end tool's position and orientation by directly manipulating the bending shape of the manipulation part itself, rather than dealing with complex cable-driven bending at the distant end tool
Solution Approach 2:
The patent introduces a new dimension of control by adding a bending degree control mechanism to the manipulation part. The manipulation part can bend in multiple directions (upward, downward, leftward, rightward) and the bending degree can be adjusted, creating a multi-dimensional control space that intuitively maps to the three-dimensional surgical field, thereby improving both adaptability and ease of operation
2Ease of manufacture
If the end tool is made unbendable for simple structure, then manufacturing is easier, but access to surgical sites and performance of various surgical actions becomes difficult
Solution Approach 1:
The patent applies dynamics by making the manipulation part's bending characteristic adjustable rather than fixed. The bending section can dynamically change its bending degree based on operational needs, allowing the system to adapt from a straight configuration (simple access) to various bent configurations (complex access) while maintaining a relatively simple overall structure compared to permanently complex end tools
Solution Approach 2:
The patent introduces the bending section as an intermediary element between the manipulation part and the end tool. This bending section acts as a flexible connector that can adapt its shape to reach difficult surgical sites, thereby enabling access versatility without requiring the end tool itself to be complex or bendable
Applied Scientific Principles
This section explains which scientific principles are used to turn an abstract innovation direction into a practical engineering solution.
Function Achieved in This Case
This configuration enhances the intuitive handling of the surgical instrument, improving accuracy, reliability, and speed of surgical procedures by aligning the manipulation and operation directions, reducing the likelihood of user error.
Implementation Method 1
a power transmission part connected to the manipulation part, the power transmission part including a first jaw wire that transmits rotation of the manipulation part to the first jaw and a second jaw wire that transmits rotation of the manipulation part to the second jaw
Data Source
AI summary
The present disclosure relates to an instrument for surgery and, more specifically, to an instrument for surgery which can be manually operated in order to be used for laparoscopic surgery or various types of surgery.