Surgical Anvil Buttress Loading With Strap Lock Retention
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Solution Overview
Problem
Existing surgical stapling apparatuses face challenges in the complexity of manufacturing and application of buttress materials, which are used to reinforce and support tissue during surgeries, and there is a need to expand the range of their application.
Innovation Solution
An anvil buttress assembly with a strap lock mechanism that secures the buttress to the anvil assembly, featuring a tissue stop and a leaf spring to prevent migration, and a distal finger for secure attachment, allowing easy loading and retention of the buttress on the surgical stapling apparatus.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Reliability
If buttress materials are used to reinforce tissue and support surgical stapling apparatus, then tissue reinforcement and staple formation are improved, but the complexity of manufacturing and application increases
Solution Approach 1:
The anvil is divided into functional segments including a tissue stop portion and a buttress retention portion. The tissue stop prevents proximal tissue migration while the buttress retention portion secures the buttress material. This segmentation allows each component to perform its specific function independently, simplifying both manufacturing and application processes while maintaining reliable tissue reinforcement.
Solution Approach 2:
A strap lock mechanism serves as an intermediary component that connects the buttress material to the anvil assembly. The strap lock includes a retention tooth that engages with the buttress material, providing a simple yet effective connection method that reduces manufacturing complexity while ensuring reliable tissue reinforcement during surgery.
2Stability of the object's composition
If a secure attachment mechanism is implemented to prevent tissue migration, then tissue positioning stability is improved, but the device complexity increases
Solution Approach 1:
The tissue stop portion of the anvil is designed to automatically prevent proximal tissue migration through its geometric configuration. The tissue stop creates a physical barrier that naturally restricts tissue movement without requiring additional active components or complex control mechanisms. This self-service approach maintains tissue positioning stability while minimizing device complexity.
Solution Approach 2:
The buttress material itself acts as a flexible element that conforms to the tissue and anvil surface, providing stable tissue positioning through its material properties rather than rigid mechanical constraints. This flexible approach simplifies the attachment mechanism while ensuring tissue stability during the surgical procedure.
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
Facilitates simplified and secure attachment of buttress materials to the surgical stapling apparatus, enhancing tissue reinforcement and reducing misalignment issues, while enabling broader application scenarios.
Implementation Method 1
the anvil assembly may include a leaf spring that is movably mounted in the tissue stop to lock the strap within the tissue stop
Data Source
AI summary
A buttress attachment assembly includes a buttress and a buttress loader. The buttress includes a buttress body and buttress wings secured to the buttress body. The buttress body defines first openings. The buttress wings define second openings. The buttress loader includes first tabs that are receivable through the first openings of the buttress body and second tabs that are receivable through the second openings defined in the buttress wings. The first and second tabs support the buttress on the buttress loader.