Dual-Camera Vitreoretinal Imaging for Concurrent Surgical Views
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Solution Overview
Problem
Current vitreoretinal surgery systems require surgeons to shift from high to low magnification views during surgical tasks, disrupting dark adaptation and prolonging surgery, and rely on external illumination sources that interfere with visualization.
Innovation Solution
A scene camera system with a scene camera and a main camera, combined with an image processing system and multiple picture-in-picture display, provides concurrent high and low magnification views without the need for external illumination, allowing surgeons to maintain dark adaptation and perform tasks at lower magnification without adjusting the visualization system.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Adaptability or versatility
If surgeons switch between high and low magnification views during surgical tasks, then they can perform both detailed retinal work and external surgical tasks, but dark adaptation is disrupted and surgery time is prolonged
Solution Approach 1:
The system divides the visualization into two separate camera channels: a main camera for high magnification retinal views and a scene camera for low magnification external views. Each camera operates independently at its optimal magnification level, allowing simultaneous display of both views without requiring the surgeon to switch between magnifications or refocus the microscope.
Solution Approach 2:
The system adds a spatial dimension to the visualization by displaying multiple magnification levels concurrently on the same display device. The scene camera view is overlaid or positioned alongside the main camera view, enabling the surgeon to access both high and low magnification information simultaneously in a multi-dimensional display space rather than sequentially.
2Ease of operation
If external illumination sources are used for low magnification views, then surgical tasks outside the eye can be performed, but dark adaptation is compromised and visualization quality decreases
Solution Approach 1:
The scene camera acts as an intermediary device that captures the low magnification view without requiring external illumination to reach the surgeon's eyes. The camera sensor detects and amplifies the available light, converting it into a digital signal that can be displayed with enhanced brightness. This allows the surgeon to see external surgical tasks clearly on the display while the actual surgical field remains in low light conditions, preserving dark adaptation.
3Adaptability or versatility
If the visualization system is adjusted for low magnification views, then external surgical tasks can be monitored, but the high magnification retinal view is lost
Solution Approach 1:
The system merges the outputs of two separate camera systems into a single integrated display interface. The main camera providing high magnification retinal views and the scene camera providing low magnification external views are combined and displayed simultaneously, allowing the surgeon to access both types of information within the same field of view without switching between different visualization systems or losing either perspective.
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
Improves visualization during vitreoretinal surgery by enabling surgeons to perform tasks at lower magnification with maintained dark adaptation and without external illumination, reducing the need to refocus and minimizing surgery duration.
Implementation Method 1
a scene camera that includes a lens and detects light reflected off an exterior of an eye into the lens and sends a signal corresponding to the detected light to a processor
Implementation Method 2
a main camera that detects light reflected off an interior structure of the eye and sends a signal corresponding to the detected light to the processor
Implementation Method 3
the infrared scene camera may detect infrared light reflected off the exterior of the eye using an infrared image sensor
Data Source
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AI summary
The present disclosure provides a scene camera system including a scene camera that includes a lens and may detect light reflected off an exterior of an eye into the lens and send a signal corresponding to the detected light to a processor. The system further includes a main camera that may detect light reflected off an interior structure of the eye and send a signal corresponding to the detected light to the processor. The system also includes an image processing system including the processor that executes instructions to produce a scene camera digital image of the eye and a main camera digital image of the eye. The system further includes a multiple picture-in-picture display that displays the scene camera digital image of the eye and the main camera digital image of the eye concurrently.