Segmented MRI Biopsy Compression Assembly
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Solution Overview
Problem
Traditional compression systems for breast biopsy procedures limit access points, requiring clinicians to reposition the system to access desired areas, which can decrease procedure accuracy and efficacy due to fixed openings that either restrict access or apply uneven pressure.
Innovation Solution
A compression assembly with removable and adjustable compression plates or bars that can be detached from a frame, allowing clinicians to create multiple access points without repositioning the entire system, thereby improving breast retention and access flexibility.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Ease of operation
If fixed openings are provided in compression members to allow access to the breast, then access points are established for biopsy procedures, but the number of access points is limited and requires repositioning of the compression system
Solution Approach 1:
The compression member is divided into multiple independent compression plates that can be individually removed or adjusted. Each compression plate can be detached to create an access point, allowing multiple access locations without repositioning the entire compression system. This segmentation enables flexible access while maintaining system stability.
Solution Approach 2:
The compression plates are designed to be movable and adjustable rather than fixed. The plates can be repositioned along tracks or guides within the compression member, allowing dynamic adjustment of access points. This dynamic configuration enables the system to adapt to different biopsy locations without requiring complete system repositioning.
2Ease of operation
If multiple access points are provided in fixed compression members, then access flexibility is improved, but the compression effectiveness and breast retention are reduced
Solution Approach 1:
By segmenting the compression member into multiple independent plates, the system can provide multiple access points while maintaining compression effectiveness. Only the necessary plates are removed for access, while other plates continue to provide compression and retention. This allows selective access without compromising overall breast retention.
Solution Approach 2:
Different regions of the compression member have different properties - some areas have compression plates for retention, while other areas have removable plates for access. The compression force is concentrated where needed for retention, while access points are strategically placed where they are needed for the procedure. This local differentiation optimizes both retention and access.
3Measurement precision
If fixed openings are used in compression members, then access is provided to specific locations, but access to blocked areas is restricted and may decrease procedure accuracy
Solution Approach 1:
The compression plates can be dynamically repositioned or removed to create access points at any location within the compression member. This dynamic adjustment allows the clinician to access the exact target area needed for the biopsy, improving accuracy. The plates can be moved along tracks or guides to precisely position access points according to the lesion location.
Solution Approach 2:
The segmented plate design allows selective removal of individual plates to access specific blocked areas. Each plate can be independently removed to create an access point in its location, enabling precise access to any target area within the compression member without affecting other compression areas.
4Adaptability or versatility
If compression members are designed with limited access points, then the structure is simpler, but the ability to access different breast areas is reduced
Solution Approach 1:
The compression member is segmented into multiple identical or standardized plates that can be independently removed. This segmentation provides versatility for accessing different breast areas while keeping each individual plate simple in structure. The modular design allows combination of simple components to achieve complex access patterns.
Solution Approach 2:
The compression plates are designed as universal components that can be positioned at multiple locations and serve multiple functions - providing compression, creating access points, and maintaining structural integrity. The same plate design can be used throughout the compression member, providing multi-functionality without increasing overall device complexity.
Data Source
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AI summary
A compression assembly for retaining a patient's breast during a biopsy procedure that provides a wide variety of potential access points through which tissue may be accessed by a biopsy device. The compression assembly comprises a frame, a plurality of removable compression members and at least one disengageable member. In another embodiment, it comprises slidable compression members. In a further embodiment, it comprises flexible compression members.