2-in-1 Medical Handpiece for Shaft Angulation and Quick Tool Release
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Solution Overview
Problem
Existing medical instruments with angleable shafts require complex coupling mechanisms, making simple and quick tool changes difficult.
Innovation Solution
A medical motor handpiece with a sleeve-shaped operating element that allows a 2-in-1 operation, enabling both tool angulation and decoupling through opposite directions of rotation, and featuring a locking mechanism for intuitive use.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Adaptability or versatility
If complex coupling mechanisms are used to enable angleable shafts, then the instrument can achieve active angulation of the distal shaft portion, but the complexity of the coupling mechanism makes simple and quick tool changes difficult
Solution Approach 1:
The patent combines two separate functions (tool angulation and tool release) into a single operating element. By integrating the angulation control and coupling release mechanisms into one unified component, the system achieves active angulation capability while simplifying the overall coupling mechanism, thereby enabling quick tool changes without compromising adaptability.
Solution Approach 2:
The operating element is designed to perform multiple functions: it controls both the angulation of the distal shaft portion and the release/coupling of the tool. This multi-functional design reduces the number of separate components needed, simplifying the coupling mechanism while maintaining the ability to achieve active angulation and quick tool changes.
2Ease of operation
If a single operating element is used for both angulation and decoupling, then the ease of operation improves, but the device complexity may increase due to the integrated mechanism
Solution Approach 1:
The patent merges the angulation control and tool release functions into a single operating element with distinct rotational directions. This integration simplifies the user interface and improves ease of operation by reducing the number of controls, while the internal mechanism is designed to manage the complexity of coordinating both functions through a unified structure.
Solution Approach 2:
The operating element is designed with segmented functional zones: a first direction of rotation handles angulation, while a second direction of rotation handles decoupling. This segmentation of functions within a unified component allows for intuitive operation while managing internal complexity through modular functional design.
3Device complexity
If multiple separate operating elements are used for angulation and decoupling, then the device complexity increases, but the ease of operation decreases due to requiring multiple controls
Solution Approach 1:
The patent combines multiple operating elements into a single unified operating element that controls both angulation and decoupling functions. This reduction in the number of separate controls simplifies the user interface and improves ease of operation, while the internal mechanism is engineered to manage the coordination complexity of multiple functions through one element.
Data Source
AI summary
A medical motor handpiece for driving a distal end effector includes a handle portion and a preferably sleeve-shaped operating element that is held to rotate about a handle longitudinal axis at a distal end portion of the handle portion. The operating element can be coupled to the end effector so as to transform a rotational movement of the operating element in a first direction of rotation into a movement of the end effector. In the event of a rotational movement of the operating element in a second direction of rotation, opposite the first direction of rotation, a function on the end effector can be effected. The medical motor handpiece can be a component of a medical manual instrument that has an end effector coupled to the medical motor handpiece via a shaft in order to transfer torque from the motor handpiece to the end effector.