Variable Angle Guide Plug Holder for Biopsy Procedures
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Solution Overview
Problem
Existing immobilization plates for interventional devices are cumbersome and limit the use of devices of different diameters, causing tissue shifting during procedures due to the need for multiple plates and adapters, which restricts the positioning capability of interventional devices.
Innovation Solution
A variable angle guide plug holder that allows adjustable insertion angles between -89 degrees and 89 degrees, or 30 degrees, with a locking mechanism and fiducial holder for precise alignment, enabling the use of a single guide plate for various device diameters and improving positioning accuracy.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Adaptability or versatility
If multiple immobilization plates with different aperture configurations are used to accommodate interventional devices of different diameters, then the adaptability to different device sizes is improved, but the device complexity and ease of operation deteriorate due to the need to exchange plates and adapters
Solution Approach 1:
The guide plug holder is designed with a universal structure that can accommodate interventional devices of different diameters through a single device. The holder includes a guide plug with a through-hole that can receive various sized devices, and an arched path mechanism that allows angular adjustment while maintaining a secure fit for different device types, eliminating the need for multiple specialized plates and adapters.
Solution Approach 2:
The guide plug holder incorporates dynamic adjustment capabilities through its arched path mechanism, allowing the holder to be positioned at different angles relative to the guide plate while maintaining secure engagement. This dynamic positioning system enables the same holder to adapt to different device diameters and insertion angles without requiring plate exchanges, thus reducing device complexity while maintaining versatility.
2Adaptability or versatility
If multiple immobilization plates are exchanged to use different interventional devices, then the versatility for different device diameters is improved, but tissue stability deteriorates due to shifting during plate exchanges
Solution Approach 1:
The guide plug holder serves as a universal interface that can accommodate multiple interventional devices of different diameters through its guide plug structure. The holder remains in a fixed position on the guide plate throughout the procedure, allowing different devices to be inserted through the same holder without requiring plate exchanges, thereby maintaining tissue stability while providing versatility for different device sizes.
Solution Approach 2:
The guide plug holder is pre-positioned and secured to the guide plate before the interventional procedure begins. This preliminary positioning establishes a stable reference point that remains fixed throughout the procedure, allowing multiple devices to be used through the same holder without disturbing tissue position, thus preventing tissue shifting while maintaining adaptability to different devices.
3Manufacturing precision
If fixed angle positions are used in the positioning device, then the manufacturing precision is improved, but the positioning capability deteriorates due to limited angular adjustment
Solution Approach 1:
The guide plug holder transitions from fixed angular positions to a dynamic adjustment mechanism featuring an arched path. The holder can be positioned at any angle along the arched path relative to the guide plate, providing continuous angular adjustment capability. This dynamic system maintains manufacturing precision through defined stop positions while enabling versatile positioning at various angles to accommodate different procedural requirements.
Solution Approach 2:
The arched path mechanism employs a curved geometric design that allows the guide plug holder to be positioned at multiple angles relative to the guide plate. The arched geometry provides smooth angular transitions while maintaining precise positioning capability, combining the benefits of fixed-position precision with the flexibility of continuous angular adjustment, thus improving both manufacturing precision and positioning versatility.
Data Source
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AI summary
Apparatus and methods are described as relating to a variable angled guide plug holder for use in interventional procedures. In an exemplary embodiment, a variable angled guide plug holder for use in interventional procedures is provided, including a guide plug holder for receiving an angular determination fixture, the guide plug holder movable relative to the angular determination fixture between a plurality of positions, each position providing a different angle of insertion relative to a point of origin on the angular determination fixture, and plate plug engaged with the angular determination fixture wherein the plate plug is insertable into a guide plate aperture of a guide plate for use in an interventional procedure.