Circular Stapler Probiotic Anvil Assembly
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Solution Overview
Problem
Current circular stapling devices do not effectively restore microbiota at the anastomotic site during surgical anastomosis procedures, which is a factor in colorectal cancer recurrence.
Innovation Solution
A circular stapling device is designed to deliver probiotics to the anastomotic site by incorporating an anvil assembly with a probiotic container and a mechanism to dispense them during the stapling process, ensuring the probiotics are released onto the tissue as the device is fired.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Reliability
If a circular stapling device is used to perform anastomosis, then the surgical procedure is completed, but the microbiota at the anastomotic site is not restored
Solution Approach 1:
The patent combines the stapling function and probiotic delivery function into a single circular stapling device. The anvil assembly includes both the anvil plate for stapling and a probiotic container with delivery mechanism, merging two functions (surgical stapling and microbiota restoration) into one integrated device that performs both operations during a single surgical procedure
Solution Approach 2:
The circular stapling device is designed with multi-functionality, serving both as a surgical stapling tool and a probiotic delivery system. The anvil assembly can perform its traditional stapling function while simultaneously delivering probiotics to the anastomotic site, making the device universal for both surgical and therapeutic purposes
2Reliability
If probiotics are delivered to the anastomotic site during stapling, then microbiota restoration is achieved, but the device structure becomes more complex
Solution Approach 1:
The probiotic container is nested within the anvil assembly structure. The container holding probiotics is positioned inside the anvil housing, with the delivery mechanism integrated into the existing anvil components. This nesting approach allows probiotic delivery functionality to be incorporated without significantly increasing the external dimensions or overall complexity of the device
Solution Approach 2:
The probiotic delivery mechanism is designed to activate automatically during the normal stapling operation. The ejection of probiotics is triggered by the mechanical action of the stapling process itself, eliminating the need for separate control systems or additional操作步骤. The device serves itself by using the stapling motion to simultaneously deliver probiotics
Data Source
AI summary
A circular stapling device for performing anastomosis procedures includes an end effector that includes or is adapted to deliver probiotics to an anastomotic site during formation of the anastomosis.