Buttress Mount Nested in Knife Lumen for Surgical Stapling
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Solution Overview
Problem
Existing surgical stapling instruments face challenges in positioning and securing buttress materials effectively during anastomosis procedures, leading to complications such as anastomotic leaks, tissue tears, and bleeding.
Innovation Solution
The development of a surgical apparatus with a staple cartridge, anvil component, knife member, buttress mount, and buttress member, which includes a plurality of surgical staples in an annular array, allowing for adjustable clamping and secure positioning of the buttress member with the staples to reinforce the tissue.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Reliability
If buttress materials are utilized to reduce anastomotic leaks and tissue tears, then reliability is improved, but device complexity increases due to difficulty in positioning and securing materials
Solution Approach 1:
The buttress member is nested within the lumen of the knife member, allowing it to be positioned and secured within the existing surgical instrument structure. This integration eliminates the need for separate positioning mechanisms while ensuring proper placement during the stapling operation.
Solution Approach 2:
The buttress member is pre-positioned within the knife member lumen before the surgical procedure. This preliminary positioning ensures that the buttress material is already in place and properly oriented before tissue stapling begins, eliminating the complexity of positioning during the actual surgical operation.
2Reliability
If a secure positioning mechanism is added to hold buttress material, then reliability is improved, but ease of operation deteriorates due to additional positioning steps
Solution Approach 1:
The knife member lumen serves a dual function: it acts as both the cutting tool guide and the positioning mechanism for the buttress member. The existing structural features of the knife member automatically hold and position the buttress material without requiring additional positioning components or steps, making the system self-sufficient.
3Manufacturing precision
If the buttress member is integrated within the knife member lumen, then manufacturing precision is improved for staple alignment, but device complexity increases
Solution Approach 1:
The positioning function for the buttress member is merged with the existing knife member structure. By utilizing the knife member's lumen as the positioning mechanism, the patent combines multiple functions (cutting guidance and buttress positioning) into a single integrated component, thereby achieving precise concentric alignment without adding separate positioning devices.
Data Source
AI summary
An apparatus for joining two hollow organ sections includes a staple cartridge component, an anvil component, a knife member, a buttress mount and a buttress member. The staple cartridge component includes a plurality of surgical staples in an annular array. The anvil component is movable relative to the staple cartridge component between spaced apart and approximated positions to adjustably clamp tissue. The knife member is movable relative to the staple cartridge component. The buttress mount is concentrically disposed at least partially within the lumen of the knife member. The buttress mount includes a plurality of spokes radially extending outward and a plurality of legs detachably secured with an inner wall of the knife member. The buttress member is secured with the plurality of spokes of the buttress mount. The buttress member is concentrically aligned with the plurality of surgical staples.