Surgical Cutting Tool With Interchangeable Heads And Suction Control
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Solution Overview
Problem
Existing surgical cutting tools used in endoscopic surgery lack efficiency and versatility, particularly in terms of tissue cutting and suction capabilities.
Innovation Solution
A surgical cutting tool with a rotatable cannula, interchangeable cutting heads, a hollow shaft with a blade, and a suction control system that allows for adjustable suction and actuation of the blade relative to the cutting window.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Adaptability or versatility
If a surgical cutting tool uses a fixed cutting head and constant suction, then the structure is simple, but the versatility and adaptability for different surgical applications are limited
Solution Approach 1:
The cutting head is designed as a separable, interchangeable component that can be detached and replaced with different cutting heads having various geometries (rounded, angled, flat distal ends) to accommodate different surgical applications, thereby enhancing versatility without permanently complicating the device structure
Solution Approach 2:
The surgical cutting tool incorporates multiple cutting heads with different distal end configurations (rounded, angled, flat) and cutting window orientations that can be interchanged on the same device, allowing a single tool to perform multiple surgical functions across different applications
2Ease of operation
If suction is constantly applied through the hollow shaft, then tissue can be drawn into the cutting window, but tissue may be prematurely drawn in before proper positioning
Solution Approach 1:
The suction control mechanism allows dynamic adjustment of suction flow between open and closed positions, enabling the operator to activate suction only after proper positioning is achieved, thereby maintaining precision while improving ease of operation during the cutting process
Solution Approach 2:
The cutting blade is designed to be pre-positioned within the hollow shaft before suction is activated, ensuring that the blade is correctly aligned with the cutting window prior to tissue draw-in, thereby maintaining cutting precision even when suction is subsequently activated
3Productivity
If the cutting blade is always exposed, then cutting is efficient, but tissue may be cut before proper positioning
Solution Approach 1:
The cutting blade is designed to move between exposed and retracted positions, allowing the operator to expose the blade only when ready to cut, thereby maintaining cutting efficiency while preventing premature cutting before proper positioning is achieved
Solution Approach 2:
The cutting blade is pre-positioned within the hollow shaft in a protected state before use, and is exposed only when the operator is ready to perform the cutting action, ensuring precise control over when cutting occurs while maintaining efficient cutting performance
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
The tool enables precise and efficient cutting of tissues with adjustable suction, facilitating various surgical procedures by providing interchangeable cutting heads for different applications.
Implementation Method 1
a suction control configured to alter suction from the suction connector to the hollow shaft
Data Source
AI summary
A surgical cutting tool with a body having a proximal end and a distal end; a cannula rotatably extending from the distal end of the body, the cannula having a proximal end and a distal end; a cutting head removably coupled to the distal end of the cannula, the cutting head having a distal tip and a cutting window; a hollow shaft movably positioned inside the cannula, the hollow shaft having a blade; a suction connector in fluid communication with the hollow shaft, the suction connector being configured for connection to a suction source; a suction control configured to alter suction from the suction connector to the hollow shaft; and an actuator coupled to the hollow shaft for moving the blade of the hollow shaft relative to the cutting window of the cutting head.