Surgical Tool Adaptor Assembly for Incompatible Chuck Couplings
Find Innovative SolutionsGenerate Solutions
Solution Overview
Problem
Conventional powered surgical handpieces face challenges in robustly coupling with surgical cutting tools due to incompatible coupling features, leading to less than optimal performance during procedures.
Innovation Solution
An adaptor assembly comprising a rod and a collet with complementary engagement features allows for the transfer of driven rotation from a powered handpiece to a surgical cutting tool, facilitating coupling even when the tool's features are incompatible with the handpiece, by providing adaptable coupling portions that match both the handpiece and the tool.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Reliability
If a conventional powered handpiece uses a standard drive chuck with a single central axis, then the structure remains simple and manufacturing is easier, but the coupling robustness deteriorates when tool tangs wear or have incompatible features
Solution Approach 1:
The adaptor assembly serves as an intermediary component between the drive chuck and the surgical cutting tool tang. It includes a drive interface portion that couples to the drive chuck and a tool interface portion that couples to the tool tang, enabling robust coupling even when the tool tang has worn or incompatible features. The adaptor transfers rotational force from the drive chuck to the tool through this intermediate structure.
Solution Approach 2:
The drive interface is segmented into separate components: the adaptor assembly with its drive interface portion and tool interface portion. This segmentation allows each portion to be optimized independently - the drive interface portion matches the drive chuck format while the tool interface portion matches the tool tang format, resolving incompatibility issues without redesigning the entire drive system.
2Adaptability or versatility
If the powered handpiece is designed to work with multiple different surgical cutting tools, then versatility improves, but the coupling compatibility deteriorates when tool tang formats differ from the handpiece drive chuck format
Solution Approach 1:
The adaptor assembly acts as a mediator that enables coupling between incompatible interfaces. The drive interface portion is configured to match the handpiece drive chuck format while the tool interface portion is configured to match the surgical cutting tool tang format, allowing tools with different tang formats to be used with the same handpiece.
Solution Approach 2:
The adaptor assembly provides universal compatibility by being able to couple different tool tang formats to a single handpiece drive chuck. Multiple adaptor assemblies with different tool interface portions can be used with the same drive interface portion, enabling one handpiece to operate with various surgical cutting tools having different tang configurations.
Data Source
AI summary
An adaptor assembly for coupling a cutting tool to a drill drive chuck such that driven rotation of the drive chuck is transferred to the cutting tool by the adaptor assembly. The adaptor assembly includes a rod, a collet and an enclosure. A proximal region of the rod provides an adaptor male coupling portion configured to engage a drill drive chuck. A leading of the collet provides an adaptor female coupling portion configured to engage a surgical cutting tool tang. Further, the rod and the collet form complementary engagement features for coupling to one another. The enclosure rotatably maintains the collet. Upon final assembly of the rod to the collet, rotation of the rod is transferred to the collet. During use, the adaptor assembly can facilitate coupling of a cutting tool to a powered handpiece under circumstances where the cutting tool is otherwise incompatible with the powered handpiece.