Stereotactic Mounting Device Skull Attachment Precision
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Solution Overview
Problem
Conventional stereotactic systems for neurosurgical procedures face limitations such as increased procedural time, patient discomfort, and reduced accuracy due to the need for frame-based systems, frameless systems, and the complexity of robotic-assisted systems.
Innovation Solution
A stereotactic system with a mounting device that includes a mounting base, a sheath, a guide frame, and a guide member, allowing for precise attachment to a patient's skull and enabling multiple surgical applications with improved tracking and guidance precision.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Measurement precision
If frame-based mounting devices are used to provide enhanced precision tracking and guidance, then measurement precision is improved, but device complexity and procedural time increase
Solution Approach 1:
The mounting device is divided into separate functional components: a mounting base for skull attachment, a guide frame with fiducials for tracking, and a sheath for catheter guidance. This segmentation allows each component to be optimized independently while reducing overall system complexity.
Solution Approach 2:
The mounting base is designed to be universally applicable across multiple surgical applications and procedures. The same mounting base can accommodate different guide frames and sheaths, eliminating the need for application-specific mounting devices and reducing procedural time.
2Measurement precision
If frame-based mounting devices are used to provide enhanced precision tracking and guidance, then measurement precision is improved, but loss of time increases
Solution Approach 1:
The mounting base is pre-configured with alignment features and attachment mechanisms that enable rapid installation on the skull. Fiducials are pre-positioned on the guide frame, eliminating time-consuming alignment procedures during surgery.
Solution Approach 2:
The mounting device incorporates adjustable and removable components that allow for quick reconfiguration between different surgical applications. The sheath can be rapidly inserted and removed, and guide frames can be exchanged without removing the mounting base.
3Adaptability or versatility
If conventional mounting devices are used, then single surgical application is supported, but adaptability decreases
Solution Approach 1:
The mounting base serves as a universal platform that can accommodate multiple types of guide frames, sheaths, and surgical instruments. This multi-functionality allows a single mounting device to support various neurosurgical procedures including biopsies, drain placements, and neurostimulation electrode insertions.
Solution Approach 2:
The sheath is designed to be nested within the guide frame structure, which itself is attached to the mounting base. This nested configuration allows compact storage and rapid deployment of multiple components without increasing overall system complexity.
Data Source
AI summary
A stereotactic system for attachment to a skull of a patient can include a mounting device that can include a mounting base configured to be attached to the skull, a sheath removably attached to the mounting base, a guide frame, and a guide member. The guide frame has a frame body that removably attaches to the mounting base and receives the sheath, a plurality of arms extending outwardly from the frame body, and a plurality of fiducials attached to the plurality of arms. The guide member is received within the frame body and receives the sheath such that the sheath is pivotable relative to the mounting base within the guide member. The guide member is configured to fixedly secure the sheath to the mounting base.