Biopsy Tissue Sample Holder with Rotating Bulk and Pathology Chambers
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Solution Overview
Problem
Current biopsy devices lack an efficient mechanism for securely holding and managing tissue samples, particularly in a manner that allows for easy retrieval and separation of pathological samples from bulk samples, which is crucial for accurate analysis.
Innovation Solution
The biopsy device incorporates a tissue sample holder with a bulk chamber and pathology chamber, featuring a rotatable inner housing that indexes tissue sample chambers and a bulk chamber, allowing for the separation and storage of samples, with removable trays for easy sample retrieval and a vacuum system for sample collection.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Manufacturing precision
If a single chamber is used to hold all tissue samples, then the device structure is simple, but the pathological samples cannot be separated from bulk samples for accurate analysis
Solution Approach 1:
The single sample holder chamber is divided into multiple separate chambers: a bulk chamber for storing bulk tissue samples and a pathology chamber for storing pathological samples. This segmentation allows accurate separation of sample types while maintaining a relatively simple overall device structure, resolving the contradiction between sample separation accuracy and structural complexity.
2Ease of operation
If tissue samples are held in a fixed position, then the structure is simple, but easy retrieval and separation of samples is difficult
Solution Approach 1:
The sample holder is designed with rotational capability, allowing it to rotate between different positions (e.g., bulk chamber position and pathology chamber position). This dynamic feature enables easy retrieval and separation of samples by simply rotating the holder to the appropriate chamber, without requiring complex mechanical retrieval mechanisms.
3Reliability
If multiple sample chambers are implemented, then sample separation is improved, but the device becomes more complex
Solution Approach 1:
Multiple sample chambers (bulk chamber and pathology chamber) are merged into a single integrated sample holder assembly that can rotate as one unit. This merging approach maintains sample separation reliability while avoiding the complexity of multiple independent chambers, as the rotation mechanism controls access to both chambers through a single operational interface.
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
This design enables secure holding, easy retrieval, and effective separation of tissue samples, facilitating accurate pathological analysis by ensuring that pathological samples are kept separate from bulk samples, enhancing the diagnostic process.
Implementation Method 1
tethered to a vacuum module and/or control module, such as for communication of fluids (e.g., pressurized air, saline, atmospheric air, vacuum, etc.)
Data Source
AI summary
A biopsy device includes a probe, a holster, and a tissue sample holder for collecting tissue samples. The probe includes a needle and a hollow cutter. The tissue sample holder includes a housing having one or more chambers that are configured to receive a removable tray including one or more prongs and a bulk chamber of a different volume than the one or more chambers. The housing is releasably engageable with the probe. Each tray prong is configured to receive a tissue sample communicated through the cutter lumen. The tray is removable from the housing, such as along an axial direction. The tissue sample holder is rotatable to successively index each chamber to the cutter lumen. The trays may be flexible, resilient, or rigid.