Surgical Stapling Adjunct Textured Friction Surface
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Solution Overview
Problem
During surgical stapling procedures, adjunct materials can slip or move out of position due to initial contact with the knife of the firing actuator, leading to malformed staples and mis-positioning, especially when multiple staple cartridges are fired along a single tissue cut line.
Innovation Solution
The use of an adjunct with a second film layer defining a continuous textured device-contacting surface to establish a frictional interface with the surgical stapler, and an adjunct retention assembly with hooks to securely engage the anvil, preventing movement during cutting and stapling.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Reliability
If the knife of the firing actuator contacts the adjunct materials during initial contact, then the adjunct materials can be cut through, but the adjunct materials move and slip out of position causing malformed staples
Solution Approach 1:
The textured surface is provided on the adjunct in advance to establish frictional engagement with the anvil or cartridge deck before the knife contacts the adjunct. This preliminary frictional engagement prevents the adjunct from moving or slipping when the knife initially contacts it during the firing process, thereby maintaining stable adjunct position while allowing proper staple formation.
2Productivity
If multiple staple cartridges are fired along a single tissue cut line with overlapping adjuncts, then multiple stapling operations can be performed, but the second adjuncts may bunch or plow when contacted by the knife
Solution Approach 1:
The textured surface is provided on the adjunct in advance to establish frictional engagement with the anvil or cartridge deck before the knife contacts the adjacent adjunct during sequential firings. This preliminary frictional engagement prevents the second adjunct from moving, bunching, or plowing when the knife initially contacts it during the firing process, thereby maintaining stable adjunct position while allowing multiple stapling operations to proceed efficiently.
3Ease of operation
If a smooth surface is used on the adjunct, then the adjunct can be easily positioned, but the adjunct cannot maintain position during the firing process
Solution Approach 1:
The adjunct incorporates a textured surface at the specific location where frictional engagement with the anvil or cartridge deck is required. This localized texturing provides the necessary friction to prevent movement during firing, while the rest of the adjacent remains smooth for easy positioning and handling. The textured area is specifically positioned to contact the anvil or cartridge deck surface, providing targeted frictional engagement without complicating the entire adjunct structure.
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 configuration minimizes and prevents adjunct slippage and movement, ensuring proper staple formation and maintaining the position of adjuncts throughout the stapling process, thereby improving the consistency and quality of surgical stapling.
Implementation Method 1
The second film layer defines a continuous textured device-contacting surface configured to establish a frictional interface with a corresponding portion of the surgical stapler
Data Source
AI summary
An adjunct for use with a surgical stapler is disclosed. The adjunct comprises a first layer comprising a first material. The adjunct comprises a second film layer (70070′) attached to the first layer. The second film layer defines a continuous textured device-contacting surface configured to establish a frictional interface with a corresponding portion of the surgical stapler. The second film layer comprises a second material that differs from the first material, the adjunct comprises a third film layer attached to the first layer. The third film layer comprises a tissue-contacting surface.