Reloadable Cartridge Assembly with Distal Pocket Positioning
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Solution Overview
Problem
Current surgical staplers face challenges in accurately placing staples due to the distance between the distal end of the reloadable cartridge assembly and the furthest pocket, leading to potential damage to adjacent tissues and organs, especially in complex anatomical environments where precise placement is critical.
Innovation Solution
The reloadable cartridge assembly design includes a second elongated member with pockets and grooves that are positioned close to the distal end, allowing for precise staple formation and minimization of the distance between the furthest pocket and the distal end, enabling accurate staple placement and reducing the risk of damaging adjacent tissues.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Manufacturing precision
If the reloadable cartridge assembly uses a conventional design with longer distance between distal end and furthest pocket, then the device structure is simpler and easier to manufacture, but the staple placement precision deteriorates and risk of tissue damage increases
Solution Approach 1:
The patent repositions the pockets along the longitudinal axis of the second elongated member, placing the furthest pocket within 6mm of the distal end. This dimensional repositioning along the length dimension enables precise staple placement near the distal end while maintaining structural simplicity through the existing elongated member configuration
2Measurement precision
If the furthest pocket is positioned closer to the distal end (within 6mm), then the staple placement accuracy improves and tissue damage risk reduces, but the device requires more precise manufacturing and positioning
Solution Approach 1:
The pockets are pre-positioned on the second elongated member at specific locations during manufacturing, with the furthest pocket configured to be within 6mm of the distal end. This preliminary positioning ensures that when the cartridge assembly is assembled and used, the staple placement accuracy is automatically achieved without requiring additional adjustment or complex control mechanisms during surgery
Data Source
AI summary
The present disclosure includes apparatuses for a reloadable cartridge assembly. An example apparatus includes a first elongated member including a staple cartridge configured to eject a number of staples and a second elongated member pivotally coupled to the first elongated member, wherein the second elongated member includes a number of pockets configured to receive and form the number of staples ejected from the staple cartridge, and wherein a furthest distal pocket of the number of pockets is less than 6 millimeters (mm) from a distal end of the second elongated member.