Surgical Instrument Bending Dial Synchronization
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Solution Overview
Problem
Existing surgical treatment instruments face challenges in maintaining a consistent relative relationship between the bending direction of the end effector and the operational direction set by the bending operation dial, especially as the angular position of the end effector changes during operation.
Innovation Solution
The surgical treatment instrument incorporates a rotor with a rotation axis inside the housing, a transmitter connected to the rotor and end effector, and a bending operation dial that rotates with the elongated member and end effector, ensuring that the bending operation dial's operational direction remains consistent with the end effector's bending direction despite changes in the end effector's angular position.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Ease of operation
If the bending operation dial rotates independently of the rotation operation knob, then the bending operation can be performed separately from rotation, but the relative relationship between the bending direction and operational direction changes as the end effector rotates
Solution Approach 1:
The bending operation dial is merged with the rotation operation knob such that they rotate together as a unified structure. This ensures that when the end effector rotates about the longitudinal axis, the bending operation dial rotates synchronously, maintaining a constant relative relationship between the bending direction indicated by the dial and the operational direction, while still allowing independent bending operation through the dial.
2Stability of the object's composition
If the bending operation dial rotates together with the elongated member and end effector, then the relative relationship between bending direction and operational direction is maintained, but the structural complexity increases
Solution Approach 1:
The bending operation dial and rotation operation knob are structurally merged into a single rotating assembly. This integration eliminates the need for separate mounting mechanisms and complex coupling systems, as the dial is directly formed as part of the knob structure, thereby maintaining the stable relative relationship while minimizing additional structural complexity.
Data Source
AI summary
A surgical treatment instrument includes a holdable housing, a shaft, an end effector configured to perform a bending movement with respect to the shaft, a rotor configured to rotate about a rotation axis in response to an operation input performed through an operation member, and a transmission member configured to transmit a driving force for causing the end effector to perform the bending movement to the end effector. The operation member and the transmission member are configured to rotate together with the shaft and the end effector in response to the operation input, and the rotor is configured to not rotate together with the shaft and the end effector when the operation input is performed.