Single-Motor Surgical Adapter Assembly for Mixed Drive End Effectors
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Solution Overview
Problem
Existing surgical devices with proprietary powered drive systems often require complex adapter assemblies to connect linear-driven end effectors with rotary-driven handle assemblies, leading to increased parts, labor, and manufacturing costs.
Innovation Solution
The development of electromechanical surgical systems with single motor drives and adapter assemblies that include selector motors and output assemblies, allowing for the engagement of input couplers to enable rotation forces for end effectors or loading units, reducing complexity and assembly labor through a selector cam mechanism.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Adaptability or versatility
If adapter assemblies are used to interface linear-driven end effectors with rotary-driven handle assemblies, then compatibility between different drive systems is achieved, but device complexity and number of parts increase
Solution Approach 1:
The adapter assembly is designed with a universal interface that can accommodate both linear-driven and rotary-driven end effectors through a single standardized coupling mechanism. The adapter includes a reusable handle assembly with a drive interface that accepts multiple types of end effectors, eliminating the need for multiple specialized adapters and reducing overall system complexity while maintaining compatibility across different drive systems
2Adaptability or versatility
If complex adapter assemblies with many parts are used, then compatibility is achieved, but assembly labor and manufacturing costs increase
Solution Approach 1:
The adapter assembly merges the handle assembly and end effector coupling into a single integrated unit that can be manufactured as one piece or pre-assembled module. This consolidation reduces the number of discrete parts that require assembly, simplifies the manufacturing process, and lowers labor costs while maintaining the compatibility function through the integrated drive interface
3Adaptability or versatility
If selector motors and output assemblies are added to enable rotation forces, then functionality for driving end effectors is improved, but device complexity increases
Solution Approach 1:
The adapter assembly incorporates a selectable drive mode mechanism where the selector motor engages different output assemblies based on the type of end effector attached. This dynamic configuration allows the system to adapt its internal drive path (linear or rotary) without requiring separate adapters for each mode, reducing overall complexity while maintaining full functionality through intelligent component selection and engagement
Data Source
AI summary
The present disclosure relates to surgical systems including hand-held electromechanical surgical devices and adapter assemblies for connecting surgical loading units to the hand-held electromechanical surgical devices. The presently described electromechanical surgical devices include single motor drives that selectively drive various output assemblies coordinated by selector motors to operate the surgical loading units.