RFID Authentication Lockout for Surgical Staplers
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Solution Overview
Problem
Current surgical systems lack effective methods for ensuring compatibility and authentication of staple cartridges with surgical instruments, leading to potential errors during procedures.
Innovation Solution
The integration of multiple RFID tags within surgical systems and staple cartridges, utilizing RFID technology for real-time authentication and compatibility verification, ensures that only compatible cartridges can be used with specific instruments, preventing errors and ensuring safe operation.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Reliability
If RFID authentication technology is integrated into the surgical stapling system, then compatibility verification and error prevention are improved, but device complexity increases
Solution Approach 1:
The RFID authentication occurs automatically when the cartridge is inserted into the instrument, performing the compatibility verification action in advance before the surgical procedure begins. The control system reads the RFID tag data and determines compatibility immediately upon cartridge installation, preventing incompatible cartridges from being used without requiring manual verification steps.
Solution Approach 2:
The RFID tag on the cartridge performs self-identification and authentication with the instrument's control system. The cartridge essentially verifies its own compatibility through the RFID communication protocol, eliminating the need for external manual verification processes and reducing the operational burden on users.
2Reliability
If a lockout mechanism is implemented to prevent firing with incompatible cartridges, then procedural safety is improved, but ease of operation deteriorates
Solution Approach 1:
The lockout mechanism prevents the firing action from occurring in the first place when incompatibility is detected. By blocking the firing mechanism before the surgical procedure begins, the system eliminates the risk of accidental firing with incompatible cartridges, and the surgeon can operate normally once compatibility is confirmed without encountering operational restrictions.
3Measurement precision
If multiple RFID tags are used for authentication, then measurement precision of compatibility verification is improved, but device complexity increases
Solution Approach 1:
The authentication system is divided into multiple independent RFID tags, each storing specific compatibility information. This segmentation allows the control system to verify multiple different parameters (such as cartridge type, sterilization status, and manufacturer data) separately, increasing the precision and reliability of the overall authentication process while maintaining modular simplicity.
Applied Scientific Principles
This section explains which scientific principles are used to turn an abstract innovation direction into a practical engineering solution.
Function Achieved in This Case
This solution enhances procedural safety by ensuring that only compatible staple cartridges are used, reducing the risk of errors and improving the reliability of surgical operations.
Implementation Method 1
RFID technology can be used to identify the components of a surgical instrument, such as staple cartridges
Data Source
AI summary
A surgical stapling instrument is disclosed a replaceable staple cartridge including a sled and an RFID tag. A lockout member includes a distal end. The distal end contacts a proximal portion of the sled as the replaceable staple cartridge is seated in the first jaw. A solenoid is configurable in an active configuration and an inactive configuration. The controller places the solenoid in an active configuration when the controller determines the replaceable staple cartridge is compatible for use with the surgical stapling instrument. The controller places the solenoid in an inactive configuration when an RFID scanner receives a signal from the RFID tag indicative that the replaceable staple cartridge is incompatible for use with the surgical stapling instrument. The lockout member pushes the sled distally as the replaceable staple cartridge is seated in the first jaw and the solenoid is in the inactive configuration.