Frangible RFID Tag Prevents Staple Cartridge Reuse
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Solution Overview
Problem
Current surgical systems lack effective mechanisms to prevent the reuse of staple cartridges, which can compromise surgical safety and efficiency.
Innovation Solution
Integration of RFID technology into surgical staple cartridges and systems, allowing for identification and tracking of cartridge usage, combined with a locking mechanism to prevent reactivation after firing.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Reliability
If RFID technology is integrated into staple cartridges for identification and tracking, then surgical safety and procedural efficiency are improved through authentication and usage tracking, but device complexity increases due to the addition of RFID tags, scanners, and control systems
Solution Approach 1:
The patent replaces mechanical tracking and identification methods with RFID (radio frequency identification) technology. RFID tags are integrated into staple cartridges and surgical instruments, enabling wireless communication and authentication without mechanical contact. The control system uses RFID scanners to read tag information and determine cartridge status (new, used, or reused), eliminating the need for manual tracking mechanisms.
Solution Approach 2:
The patent uses RFID tags as information carriers that store and transmit data about the staple cartridge (identification, usage status, authentication credentials). Instead of physically examining or mechanically tracking the cartridge, the system creates and reads digital copies of cartridge information stored on the RFID tag, enabling remote and automated verification.
2Reliability
If a locking mechanism is implemented to prevent cartridge reactivation after firing, then surgical safety is improved by preventing accidental reuse, but device complexity increases due to the additional locking components and control mechanisms
Solution Approach 1:
The patent replaces complex mechanical locking mechanisms with an electronic/software-based locking system. The control system determines cartridge status by reading RFID tag information and implementing a software-based lockout that prevents reactivation. This electronic approach is simpler than traditional mechanical locks while providing reliable prevention of cartridge reuse.
Solution Approach 2:
The RFID tag on the staple cartridge self-identifies its usage status (new, used, or reused) and provides authentication information to the control system. The cartridge essentially serves itself by carrying its own identification and status data, eliminating the need for external verification mechanisms.
3Reliability
If RFID tags are made frangible to be cut during the firing stroke, then reliability is improved by ensuring cartridge cannot be reused, but manufacturing precision requirements increase to ensure proper tag placement and cutting
Solution Approach 1:
The patent changes the physical property of the RFID tag from solid to frangible (breakable) by positioning it in the cutting path of the staple cartridge. During the firing stroke, the moving cut sever the RFID tag, providing a physical indication that the cartridge has been used. This parameter change (from solid to frangible) ensures the cartridge cannot be reused while maintaining relatively simple manufacturing requirements.
Data Source
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AI summary
A surgical system is disclosed including a surgical instrument, a replaceable staple cartridge, and an RFID tag including stored information. The replaceable staple cartridge includes a sled configured to translate along an elongate slot and drive staples out of a cartridge body during a staple firing stroke. The RFID tag is inoperable after a predefined action of said surgical instrument. An RFID scanner is configured to transmit a first signal to said RFID tag and receive a second signal from said RFID tag in response to said first signal. A controller prevents at least one operation of said surgical instrument when said RFID scanner does not receive said second signal from said RFID tag.