Surgical Stapler Cartridge Actuation Sled Staggered Camming
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Solution Overview
Problem
Current surgical stapling instruments face challenges in efficiently deploying staples with varying sizes and shapes, which can affect tissue compression and fluid diffusion during procedures.
Innovation Solution
The design incorporates an actuation sled with camming members and staple pushers that are longitudinally staggered and offset, allowing for the controlled ejection of staples of different sizes and shapes, creating a tissue compression gradient that facilitates fluid diffusion.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Adaptability or versatility
If staples of varying sizes and shapes are deployed using conventional stapling instruments, then the ability to adapt to different tissue types is improved, but the consistency of tissue compression and fluid diffusion is worsened
Solution Approach 1:
The tissue compression surface is configured with varying compression characteristics at different locations to match the specific sizes and shapes of different staples. This allows each staple to receive appropriate localized compression forces, ensuring consistent tissue compression and fluid diffusion regardless of staple variation, thereby resolving the contradiction between adaptability and reliability
2Device complexity
If a single tissue compression surface is used for all staples, then the device complexity is reduced, but the ability to optimize tissue compression for different staple configurations is worsened
Solution Approach 1:
Rather than using multiple separate compression surfaces, the invention implements a single compression surface with spatially varying compression characteristics. This approach maintains device simplicity while achieving optimized tissue compression for different staple configurations through localized property variations, resolving the contradiction between device complexity and manufacturing precision
3Productivity
If staples are deployed without considering fluid diffusion pathways, then the deployment speed is improved, but the hemostasis effectiveness is worsened
Solution Approach 1:
The tissue compression surface is pre-configured with compression characteristics that anticipate and facilitate fluid diffusion pathways before staples are fully deployed. This preliminary optimization of compression forces ensures that fluid diffusion and hemostasis are enhanced from the outset, resolving the contradiction between deployment speed and hemostasis effectiveness
Data Source
AI summary
Surgical stapling devices are disclosed herein that improve on the disclosures of previous surgical stapling devices.