Rotatable Tissue Sample Holder for Biopsy Devices
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Solution Overview
Problem
Current biopsy devices require manual manipulation of tissue samples, which is time-consuming and prone to human error, complicating the pathological examination and diagnosis process.
Innovation Solution
A biopsy device with a tissue sample holder that can operate in both bulk and individual sample collection modes, featuring a rotatable member with indexed trays that can be selectively positioned with a cutter, allowing for efficient and accurate collection and analysis of tissue samples.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Reliability
If manual manipulation of tissue samples is used, then flexibility in sample handling is maintained, but time consumption increases and human error occurs
Solution Approach 1:
The tissue sample holder is designed to automatically maintain sample orientation and position through its structured chamber design and tray configuration. The system self-regulates sample placement and orientation without requiring manual intervention, thereby reducing time consumption while maintaining examination accuracy.
Solution Approach 2:
The patent replaces manual mechanical manipulation with an automated indexing system that uses rotational mechanisms and indexed trays to precisely position tissue samples. This mechanical substitution eliminates human error in sample handling while reducing the time required for sample preparation and examination.
2Adaptability or versatility
If frequent tray changes are required, then individual sample analysis capability is maintained, but device complexity and operation time increase
Solution Approach 1:
The tissue sample holder is designed with multi-functionality to accommodate both bulk sample collection and individual sample analysis within a single device structure. The indexed trays can be configured for different collection modes without requiring separate devices or complex tray management systems, thereby maintaining versatility while reducing operational complexity.
Solution Approach 2:
The patent implements a dynamic indexing system that allows the trays to be rotatably positioned between bulk collection and individual analysis configurations. This dynamic adaptability enables the device to switch between operational modes smoothly without requiring frequent tray changes or complex manual reconfiguration.
3Productivity
If indexed trays with rotatable member are used, then sample collection efficiency is improved, but manufacturing complexity increases
Solution Approach 1:
The tissue sample holder is segmented into modular indexed trays that can be manufactured independently and then assembled into the complete device. This segmentation allows for simplified manufacturing of individual components while maintaining the overall efficiency benefits of the indexed tray system with rotatable member.
Data Source
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AI summary
A biopsy device includes a body, a needle, a cutter, and a tissue sample holder. The needle extends distally from the body. The cutter is longitudinally translatable relative to the needle and defines a cutter lumen. The tissue sample holder includes a rotatable member, an individual sample tray, and one or more bulk sample trays. The rotatable member defines a single chamber partially divided by a plurality of tray protrusions extending radially inwardly from a cylindrical wall of the rotatable member. The individual sample tray includes a single sample chamber that is configured to receive a single tissue sample. The bulk sample tray is configured to receive a plurality of tissue samples.