E-Shaped Guiding Element for Simultaneous Tissue Suture and Cutting
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Solution Overview
Problem
Traditional linear anastomats lack a cutting function, requiring additional tools and increasing tissue trauma and infection risk due to separate suture and cutting operations, which complicates surgeries and obstructs the operative field.
Innovation Solution
A linear cutting element with an E-shaped guiding element that integrates suturing and cutting capabilities, allowing simultaneous tissue suture and cutting within a single operation by utilizing a tool apron, push sheet, and cutting tool, reducing the need for multiple instruments and simplifying surgical procedures.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Adaptability or versatility
If a traditional linear anastomat is used for suturing, then the suturing function is achieved, but the cutting function is missing requiring additional tools
Solution Approach 1:
The patent combines the cutting tool and suturing nails into a single integrated linear cutting element. The cutting tool is positioned on the tool apron while suturing nails are arranged on the push sheet, both within the same instrument body. This merging eliminates the need for separate cutting and suturing instruments, directly resolving the technical contradiction between functional versatility and device complexity.
Solution Approach 2:
The linear cutting element is designed as a universal instrument that performs multiple functions: cutting tissue with the cutting tool, suturing tissue with the suturing nails, and guiding the operation through the E-shaped guiding element. This multi-functional design allows a single instrument to replace multiple specialized tools, addressing the contradiction between versatility and complexity.
2Reliability
If separate cutting and suturing operations are performed, then each operation can be optimized, but tissue trauma and infection risk increase
Solution Approach 1:
The cutting tool and suturing nails are pre-positioned within the integrated linear cutting element before the surgical procedure begins. The cutting tool is fixed on the tool apron and the suturing nails are arranged on the push sheet in advance. This preliminary arrangement eliminates the need for multiple instrument exchanges during surgery, reducing infection risk and procedural time.
3Ease of operation
If multiple instruments are used for different operations, then operational precision can be maintained, but the operative field becomes obstructed
Solution Approach 1:
The patent merges the cutting tool and suturing mechanism into a single linear cutting element with a unified structure. The E-shaped guiding element provides a common reference frame for both cutting and suturing operations, ensuring precision is maintained while the operative field remains clear since only one instrument needs to be maneuvered.
4Productivity
If a linear cutting element is integrated, then simultaneous suture and cutting is achieved, but the structure becomes more complex
Solution Approach 1:
The integrated linear cutting element is segmented into distinct functional modules: the cutting tool mounted on the tool apron, the suturing nails arranged on the push sheet, and the E-shaped guiding element. This segmentation allows each component to perform its specific function independently while being part of the integrated system, managing structural complexity through modular design.
Solution Approach 2:
The cutting tool and suturing nails are nested within the same instrument body structure. The tool apron and push sheet are positioned within the linear cutting element housing, with the E-shaped guiding element providing a framework that accommodates both cutting and suturing components. This nesting arrangement achieves simultaneous operations while containing the structural complexity within a unified design.
Data Source
AI summary
A linear cutting element (1) with an E-shaped guiding element (16) enables the suture and cutting of surgery to be simultaneously conducted when being loaded in a linear cutting anastomat (2). The linear cutting element (1) comprises a knife underlaying plate (10), a nail abutting seat (11), an assembly cover (12), suture nails (13), a nail cartridge (14), a push sheet (15), a guiding element (16), a pin (17) for the guiding element, a cutting knife (18), a knife stand (19), a positioning needle (20), a positioning needle holder (21) and a blank cap (22). The knife underlaying plate (10) and the nail abutting seat (11) are fixedly connected through a front-end groove (101) and rear-end agnails (102, 103) of the knife underlaying plate (10). The nail abutting seat (11) is fixedly connected to the guiding element (16) through the pin (17) for the guiding element. The guiding element (16) is placed at the open end of the nail cartridge (14), and the guiding element (16) enables nail grooves (122) at the two sides of the nail cartridge (14) to remain parallel vertically, which enables the nail cartridge (14) in an open state to be in a closed state. The assembly cover (12) is arranged between the nail abutting seat (11) and the nail cartridge (14), and can be removed from the linear cutting element (1). The linear cutting element (1) is replaceably loaded into the linear cutting anastomat (2).