Pivoting Tissue Cutting Assembly for Uniform Slice Thickness
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Solution Overview
Problem
Current methods for cutting biological tissues are imprecise, leading to uneven slice thickness, risk of technician injury, frequent blade replacement, and difficulty in distinguishing between healthy and contaminated tissue, particularly due to the complex composition and variability of biological tissues.
Innovation Solution
A biological tissue cutting device with a pivotable cutting assembly and adjustable blade tension mechanism, featuring removable blades and a flat cutting surface, designed to ensure precise and even cuts by minimizing blade deflection and facilitating blade replacement.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Ease of operation
If manual cutting methods are used, then operation simplicity is maintained, but cutting precision deteriorates leading to uneven slice thickness
Solution Approach 1:
The cutting device is divided into distinct functional segments: a base with cutting surface, a pivotable cutting assembly, and multiple individually adjustable blades. This segmentation allows each component to be optimized independently - the base provides stability, the pivotable assembly enables precise positioning, and individual blade adjustment ensures uniform cutting depth across all blades, thereby improving cutting precision while maintaining operational simplicity.
Solution Approach 2:
The cutting assembly is designed to be pivotable relative to the base, allowing dynamic adjustment of the cutting angle and depth. The blades can be individually tensioned and positioned, enabling real-time optimization of cutting parameters. This dynamic capability allows the device to adapt to different tissue types and cutting requirements, significantly improving cutting precision compared to static manual cutting methods.
2Productivity
If multiple blades are used simultaneously, then productivity increases through parallel cutting, but device complexity increases
Solution Approach 1:
While multiple blades are used to improve productivity, each blade is independently mounted and adjustable on the cutting assembly. This segmented design allows each blade to be positioned and tensioned separately, simplifying the overall system by enabling modular maintenance and adjustment. The individual adjustability compensates for the added complexity of multiple blades, making the system manageable despite having multiple cutting elements.
Solution Approach 2:
The cutting assembly serves multiple functions: it holds multiple blades, provides individual tensioning for each blade, enables pivotable movement for angle adjustment, and allows selective positioning of blades. This multi-functionality consolidates what would otherwise require separate devices into a single integrated system, improving productivity without proportionally increasing device complexity.
3Manufacturing precision
If blades are securely fixed to prevent deflection, then cutting precision improves, but blade replacement difficulty increases
Solution Approach 1:
The blade mounting system incorporates individual tensioning mechanisms that allow blades to be securely fixed during operation to prevent deflection and ensure uniform slicing. At the same time, the tensioning mechanisms are designed to be easily adjustable, allowing rapid release and replacement of blades when needed. This dynamic mounting system resolves the contradiction between secure fixation for precision and easy replacement for maintenance.
4Manufacturing precision
If blade tension is increased to reduce deflection, then cutting precision improves, but blade wear accelerates
Solution Approach 1:
The device incorporates individual tensioning mechanisms for each blade, allowing local optimization of blade tension. Each blade can be tensioned to the precise level needed for its specific cutting task, rather than applying uniform high tension to all blades. This localized control ensures sufficient tension to prevent deflection and maintain cutting accuracy, while avoiding excessive tension that would accelerate wear and reduce blade service life.
Data Source
AI summary
A biological tissue cutting device for slicing a biological tissue sample, has: a base defining a cutting surface against which the biological tissue sample is laid on; a cutting assembly having a frame pivotably mounted to the base, the frame pivotable relative to the base about a pivot axis, and blades secured to the frame, the frame being movable from an open position in which the blades is distanced from the cutting surface to a closed position in which the blades contact the cutting surface.