Surgical Instrument Authentication Board for Fluid-Resistant Communication
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Solution Overview
Problem
Powered surgical instruments face reliability issues due to compromised communication between disposable loading units and handle assemblies, particularly in environments exposed to fluids, leading to instability or inoperability, and there is a need for an authentication system to ensure the use of authentic components.
Innovation Solution
A surgical system with a handle assembly containing a controller and a loading unit equipped with a chip that stores data on the loading unit's configuration and usage, ensuring proper articulation and operation by monitoring current and position, and a removable staple cartridge assembly with a chip for authentication, preventing unauthorized use.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Extent of automation
If an integrated circuit chip is provided in the loading unit to communicate with the handle assembly, then the configuration identification is automated and user error is eliminated, but the communication reliability is compromised when exposed to fluids
Solution Approach 1:
The patent introduces an authentication board as an intermediary component between the chip and the handle assembly. This board includes authentication contacts that interface with corresponding contacts on the chip, and adapter board contacts that communicate with the handle assembly. The intermediary board protects the chip from direct fluid exposure while maintaining communication functionality, thereby resolving the contradiction between automation and reliability in fluid environments.
2Adaptability or versatility
If the handle assembly is configured for use with a variety of loading units of different configurations, then the adaptability is improved, but the risk of incompatibility and instability increases without proper authentication
Solution Approach 1:
The patent implements preliminary authentication through the authentication board before the loading unit can be operated with the handle assembly. The authentication contacts on the board verify the compatibility and legitimacy of the loading unit's chip before enabling system operation. This preliminary verification ensures that only compatible loading units can be used, maintaining system stability while preserving adaptability across different loading unit configurations.
3Ease of operation
If no authentication system is provided, then the ease of operation is maintained, but the risk of using counterfeit or incompatible components increases
Solution Approach 1:
The authentication system operates autonomously through the authentication board that automatically verifies the loading unit's authenticity when attached to the handle assembly. The chip and authentication contacts perform the verification process without requiring user intervention or additional steps. This self-service authentication maintains ease of operation while ensuring component authenticity, as the system automatically prevents operation of counterfeit or incompatible units.
Data Source
AI summary
An authentication and information system for use in a surgical stapling device includes a handle assembly having a controller, the controller having at least one program and a memory, an adapter assembly, and a loading unit having a tool assembly mounted for articulation and a member for actuating articulation of the tool assembly, the loading unit having at least one chip assembly having a chip storing data indicating a position of the member when the tool assembly is in a fully articulated position.