Surgical Object Guide System Using Intersection Light Points
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Solution Overview
Problem
Surgeons face challenges in accurately locating and navigating to deeply embedded lesions during surgery due to the need to search and cut through normal brain tissues without precise guidance, as existing systems rely on manual inspection or external aids like positioning balls.
Innovation Solution
An object guide system comprising light projecting devices, image capture devices, and a control device that projects and captures three-dimensional data to form an intersection light point, allowing for interactive and programmable guiding operations by calculating and displaying the position and orientation of surgical instruments relative to the lesion, eliminating the need for additional positioning devices.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Measurement precision
If surgeons use naked eye or microscope to search for lesions, then no additional positioning devices are needed, but the precision of lesion localization is insufficient for deeply embedded lesions
Solution Approach 1:
The patent creates a virtual three-dimensional model that copies and represents the actual patient anatomy and lesion location. This virtual model allows precise lesion localization through computer processing without requiring complex physical positioning devices, resolving the contradiction between measurement precision and device complexity
Solution Approach 2:
The patent replaces mechanical search methods (naked eye, microscope) with computer-based image processing and three-dimensional reconstruction. This substitution enables precise lesion localization through digital techniques rather than manual mechanical exploration, improving measurement precision without adding mechanical complexity
2Reliability
If surgeons cut through normal brain tissues to reach deeply embedded lesions, then the lesion can be accessed, but the risk of damaging normal tissues increases
Solution Approach 1:
The patent implements real-time feedback by continuously tracking the surgical instrument's position and comparing it with the pre-planned surgical path. The system provides immediate feedback to the surgeon about the instrument's location relative to the lesion and normal tissues, enabling precise navigation that improves both lesion positioning accuracy and surgical safety
Solution Approach 2:
The patent performs preliminary three-dimensional reconstruction and surgical path planning before the actual surgery. By pre-calculating the optimal surgical trajectory that avoids normal tissues, the system enables precise lesion access with minimized risk to healthy brain tissue, improving both positioning accuracy and surgical safety
3Ease of operation
If computer host is movable on the floor with castors, then the system is flexible in position, but the stability and precision of navigation reference are reduced
Solution Approach 1:
The patent creates a virtual copy of the surgical environment and navigation references in the computer system. This virtual reference system remains stable and precise regardless of the physical computer host's position, allowing the host to be mobile while maintaining navigation precision through digital rather than physical references
Applied Scientific Principles
This section explains which scientific principles are used to turn an abstract innovation direction into a practical engineering solution.
Function Achieved in This Case
Enables precise and interactive guidance during surgical procedures by providing real-time positional and directional feedback, enhancing the accuracy of surgical instrument alignment and reducing the risk of damaging normal tissues.
Implementation Method 1
Each of the light projecting devices emits and projects a light beam outward to an operation space. The light beams of the light projecting devices intersect and form an intersection light point in the operation space.
Implementation Method 2
The at least one image capture device captures the intersection light point projected into the operation space.
Data Source
AI summary
An object guide system includes a plurality of light projecting devices, at least one image capture device, a control device electrically coupled with the light projecting devices, and a display unit electrically coupled with the at least one image capture device and the control device. When an object enters an operation space, a projected information is imaged on the object. Then, the at least one image capture device captures the cross information of the operation space and the three-dimensional position information of the object. Then, the control device calculates the coordinates of the object that is moving in the operation space. Thus, after the at least one image capture device captures the cross information of the operation space and the three-dimensional position information of the object, the object guide system proceeds interactive and guiding operations.