Biopsy Guide Block With Diagonal Passageways
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Solution Overview
Problem
Current guide blocks for larger biopsy devices in MRI-guided breast biopsies do not allow for precise access to all areas of tissue directly behind the block, limiting the ability to reach desired tissue locations.
Innovation Solution
A guide block with four passageways, including a centrally disposed and diagonally oriented passageway, allowing for rotation to access all areas behind the block, which is configured to fit within an MRI device's grid and compression plate system.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Measurement precision
If traditional cube-shaped guide blocks with nine circular openings are used, then the device structure is simple and easy to manufacture, but the ability to precisely access all tissue areas directly behind the block is limited
Solution Approach 1:
The guide block is divided into multiple passageways (first, second, third, and fourth passageways) with different orientations. Each passageway is segmented to provide access to specific tissue areas, allowing precise targeting of different regions behind the guide block while maintaining a manageable structural complexity.
Solution Approach 2:
The invention introduces diagonal passageways (third and fourth passageways) that extend in diagonal directions, adding dimensional diversity to the traditional linear arrangement. This dimensional change enables access to tissue areas that would be unreachable with only vertical and horizontal passageways, improving comprehensive tissue accessibility.
2Adaptability or versatility
If the guide block has fixed passageway orientations, then the device structure is simple, but the ability to access tissue in all directions is limited
Solution Approach 1:
The guide block is designed with multiple passageways serving different functions: vertical passageways for superior-inferior access, horizontal passageways for medial-lateral access, and diagonal passageways for oblique access. This multi-functional design allows a single guide block to provide comprehensive access to all tissue areas, enhancing versatility without requiring multiple separate devices.
Solution Approach 2:
The guide block incorporates passageways oriented in multiple fixed directions (vertical, horizontal, and diagonal) to dynamically adapt to different tissue targeting needs. This static multi-orientation design provides the functional flexibility of a dynamic system, allowing the physician to select the appropriate passageway based on the specific tissue location requiring access.
3Quantity of substance
If larger biopsy devices are used, then more tissue can be sampled, but the difficulty of precise placement and stabilization increases
Solution Approach 1:
The guide block serves as an intermediary device between the physician and the larger biopsy device. It provides a stable platform with precisely configured passageways that guide and stabilize the biopsy device during insertion and operation. This intermediary structure makes it easier to handle and precisely position larger biopsy devices, improving ease of operation while maintaining the ability to sample adequate tissue.
Data Source
AI summary
A system includes a grid-like, breast-receiving pressure plate having a polygonal opening. A prism is configured to match the polygonal opening. The prism includes a first conduit that has a zero first offset from the prism center and a second conduit that has a second offset from the prism center.