3D Nasal Endoscope with Sequential Light Sources
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Solution Overview
Problem
Current image-guided surgery systems for ENT procedures lack the ability to provide precise three-dimensional optical views of anatomical structures within the nasal cavity, limiting the accuracy of instrument positioning and navigation during medical procedures.
Innovation Solution
A 3D imaging endoscope with a flexible, steerable shaft and imaging head equipped with a sequence-activated array of light sources and collimators, capable of capturing high-resolution images and generating a three-dimensional digital model of anatomical structures, which can be combined with preoperative imaging data to enhance navigation and surgical planning.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Measurement precision
If a conventional endoscope is used to provide visualization within an anatomical passageway, then the device can be simple and easy to operate, but it cannot provide precise three-dimensional optical views of anatomical structures
Solution Approach 1:
The imaging head is segmented into multiple light sources (first and second light sources) and multiple collimators (first and second collimators), each contributing to different aspects of the three-dimensional view. This segmentation allows the system to capture comprehensive anatomical information while keeping each individual component relatively simple.
Solution Approach 2:
The system transitions from conventional two-dimensional endoscopic visualization to three-dimensional optical views by incorporating multiple light sources and collimators that capture depth information. This dimensional change enables precise spatial mapping of anatomical structures within the nasal cavity.
2Measurement precision
If image-guided surgery systems are used to correlate instrument location with preoperative images, then navigation accuracy can be improved, but the system complexity increases
Solution Approach 1:
The patent combines the 3D imaging endoscope with image-guided surgery navigation capabilities into an integrated system. The imaging head with multiple light sources and collimators works synergistically with the navigation computer to provide real-time correlation of instrument location with preoperative images, enhancing surgical precision.
Solution Approach 2:
The system introduces an intermediary computational layer that processes images from the 3D endoscope and correlates them with preoperative imaging data. This intermediary processing enables accurate instrument positioning by bridging the gap between real-time endoscopic views and preoperative planning.
3Adaptability or versatility
If a rigid endoscope is used to maintain structural stability, then the device is easier to manufacture and operate, but it cannot provide flexible access within complex anatomical spaces
Solution Approach 1:
The endoscope shaft is designed with flexible properties, allowing it to navigate through complex anatomical passageways of the nasal cavity. The flexible shaft incorporates the imaging head with multiple light sources and collimators, enabling the system to adapt to various anatomical configurations while maintaining image quality.
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 real-time visualization and navigation of instruments within the nasal cavity, improving the accuracy of medical procedures by providing a refined three-dimensional model of anatomical structures, facilitating better access and maneuverability within complex anatomical spaces.
Implementation Method 1
an image sensor assembly configured to capture images of a surface
Implementation Method 2
a plurality of light sources positioned adjacent to the first image sensor assembly, the light sources configured to be activated in a predetermined sequence
Implementation Method 3
a plurality of collimators positioned over respective light sources of the plurality of light sources
Data Source
AI summary
An apparatus includes a shaft, an imaging head, and a processor. The shaft includes a distal end sized to fit through a human nostril into a human nasal cavity. The imaging head includes an image sensor assembly, a plurality of light sources, and a plurality of collimators. At least some of the light sources are positioned adjacent to the image sensor assembly. Each collimator is positioned over a corresponding light source of the plurality of light sources. The processor is configured to activate the light sources in a predetermined sequence. The image sensor assembly is configured to capture images of a surface illuminated by the light sources as the light sources are activated in the predetermined sequence.