Microtome Adhesive Tape Mechanism for Debris Collection
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Solution Overview
Problem
Conventional microtomes fail to adequately prevent contamination of samples and microscopes by debris, leading to degraded image quality and cross-contamination between samples.
Innovation Solution
A debris collection mechanism for microtomes, comprising a support structure, tape transport mechanism, and motion mechanism, uses adhesive tape to collect and transport debris away from the sample and microscope, preventing contamination.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Object-affected harmful factors
If conventional cleaning methods (e.g., Styrofoam cleaning rod) are used to clean the blade, then the blade can be cleaned to some extent, but debris still accumulates on the blade, sample, and microscope, causing contamination and degraded image quality
Solution Approach 1:
The patent extracts the harmful debris from the system by introducing an adhesive tape that actively collects and removes debris from the blade surface during the cutting process. The tape is transported through the cutting area, picking up debris particles and extracting them from the harmful environment where they would otherwise contaminate the sample and microscope.
Solution Approach 2:
The adhesive tape acts as an intermediary element between the blade and the debris. Instead of directly cleaning the blade with a cleaning rod, the tape serves as a mediating surface that adheres to the debris particles, allowing for effective removal without direct contact between the cleaning tool and the blade, thereby preventing cross-contamination.
2Manufacturing precision
If the microtome is used to cut samples, then thin sections can be produced for examination, but debris is generated during cutting that contaminates the sample surface, microscope, and subsequent samples
Solution Approach 1:
The adhesive tape is positioned and activated before the debris problem fully develops. The tape is introduced into the cutting area in advance, creating a debris collection pathway before excessive debris accumulates on the blade and sample. This preliminary positioning allows for continuous debris removal throughout the cutting process.
Solution Approach 2:
The patent converts the harmful cutting debris into a collectible target by using the adhesive properties of the tape. The debris particles that would otherwise be harmful contaminants are transformed into adhered material on the tape, which can then be easily removed and disposed of, turning a problematic byproduct into a manageable element.
3Productivity
If the same microtome is used for multiple samples, then productivity is maintained, but cross-contamination occurs between samples due to debris transfer on the blade
Solution Approach 1:
The adhesive tape provides continuous debris collection throughout the entire cutting process. Rather than periodic cleaning interruptions, the tape continuously adheres to debris particles as they are generated, maintaining uninterrupted cutting operation while preventing cross-contamination between samples processed sequentially on the same microtome.
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
Effectively prevents debris accumulation near the sample, maintaining image quality and preventing cross-contamination, while being cost-effective and easily implementable.
Implementation Method 1
a tape transport mechanism, configured to stepwise transport an adhesive tape from the supply spool to the take-up spool
Data Source
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AI summary
A debris collection mechanism (1) for a microtome for an electron microscope or an ion beam microscope, the debris collection mechanism (1) comprising: a support structure (2) that is configured to be attached to the microtome or be part of the microtome; a tape transport mechanism (3) which is attached to the support structure (2), comprises a supply spool (4), a take-up spool (5) and a tongue (6), and is configured to stepwise transport an adhesive tape (7) from the supply spool (4) to the take-up spool (5) such that during its transport the adhesive tape (7) passes slidably by the tongue (6); a motion mechanism (8) which is attached to the support structure (2) and is configured to force the tape transport mechanism (3) to stepwise transport the adhesive tape (7). Also, a microtome, and a method for debris collection in a microtome.