Capsule Endoscope Dual-Light Imaging for Deep Tissue Detection
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Solution Overview
Problem
Current capsule endoscope technologies face challenges in observing deep tissues due to the limited penetration depth of visible light, which hampers accurate detection of cancer and lesions in the digestive tract.
Innovation Solution
An imaging apparatus is integrated into a capsule endoscope, featuring a dual-lighting system comprising a first light source for white light and a second light source for near-infrared light. This setup allows for simultaneous or alternating imaging modes, enhancing tissue penetration and image quality.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Illumination intensity
If white light imaging is used to provide good image quality and penetration depth, then image quality is improved, but the penetration depth of light is insufficient for deep tissue observation
Solution Approach 1:
The patent combines white light imaging and near-infrared imaging into a single capsule endoscope system. The imaging apparatus includes both a white light source and a near-infrared light source, allowing the system to leverage the high image quality of white light while achieving deep tissue penetration through near-infrared light, thereby resolving the contradiction between image quality and penetration depth.
Solution Approach 2:
The capsule endoscope is designed with multi-functionality to perform both white light imaging and near-infrared imaging. This universal design enables the single device to address multiple imaging requirements - superficial tissue observation with white light and deep tissue observation with near-infrared light, eliminating the need for separate devices and resolving the penetration depth limitation.
2Length of stationary object
If multiple light sources are added to achieve deep tissue imaging, then penetration depth is improved, but device complexity increases
Solution Approach 1:
The patent merges the white light source and near-infrared light source into a unified imaging apparatus within the capsule endoscope. By integrating both light sources and their corresponding imaging systems into a single compact device, the patent achieves deep tissue imaging capability while minimizing the increase in device complexity through efficient spatial arrangement and shared optical components.
3Adaptability or versatility
If dual-lighting system is implemented to image both superficial and deep tissues, then imaging comprehensiveness is improved, but power consumption increases
Solution Approach 1:
The patent implements dynamic control of the dual lighting system, allowing the capsule endoscope to switch between white light imaging mode and near-infrared imaging mode based on the specific imaging requirements. This dynamic adjustment enables the system to consume power efficiently by activating only the necessary light source for each imaging task, thereby achieving comprehensive imaging capability while optimizing power consumption.
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
The dual-lighting system enables comprehensive imaging of both superficial and deep tissues, improving the accuracy of cancer and lesion detection, and extending the operational time of the capsule endoscope by optimizing power usage.
Implementation Method 1
a first light source, used to emit white light to provide light for the camera to image the subject
Implementation Method 2
a second light source, used to emit near-infrared light to provide light for the camera to image the subject
Implementation Method 3
the camera comprises a lens, on which a coating layer is provided to filter out light with a central wavelength in the range of 660 nm-820 nm
Implementation Method 4
the camera comprises a notch filter, which is used to filter out light with a central wavelength in the range of 660 nm-820 nm
Data Source
AI summary
The present invention discloses an imaging apparatus and method, and a capsule endoscope. The imaging apparatus includes a lighting assembly and a camera, the camera is used for imaging a subject to be tested. The lighting assembly includes a first light source and a second light source, the first light source is used for emitting white light to provide light for the camera to image the subject, and the second light source is used for emitting near-infrared light to provide light for the camera to image the subject. A superficial layer of the subject is irradiated with white light, so as to observe superficial layer tissue of the subject, and intermediate layer tissue and deep tissue of the subject are irradiated with near-infrared light, so as to observe the intermediate layer tissue and the deep tissue of the subject.