Antenna Placement in Capsule Endoscope Imaging Dome
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Solution Overview
Problem
Conventional capsule endoscopes face challenges in downsizing due to the placement of antennas, which are often obstructed by metal components, leading to distorted or absorbed transmission waves and compromised antenna characteristics, and the need for increased casing size.
Innovation Solution
The antennas are arranged within transparent imaging domes outside the imaging field of view, allowing for space-saving designs and improved directionality by avoiding interference with other components, and utilizing antireflection treatments to prevent light reflection issues.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Reliability
If the antenna is arranged between or around housed components in the capsule-like casing, then the antenna can be positioned within the capsule structure, but transmission waves are distorted, shielded, or absorbed by conductive components, degrading antenna characteristics
Solution Approach 1:
The antenna is extracted from the interior space between components and placed in the imaging dome, which is filled with transparent resin material. This removes the antenna from the harmful electromagnetic environment created by metal components while maintaining its functional integration within the capsule endoscope system.
Solution Approach 2:
Transparent resin material serves as an intermediary medium filling the imaging dome, providing an electromagnetic environment suitable for antenna operation. The resin acts as a non-conductive barrier that prevents interference from metal components while allowing the antenna to function effectively within the dome structure.
2Stability of the object's composition
If the antenna is arranged between or around housed components, then the capsule structure can be maintained, but the capsule-like casing size must be increased to accommodate the antenna placement
Solution Approach 1:
The imaging dome serves multiple functions: it protects the imaging unit, provides a mounting surface for the antenna on its inner surface, and contains the transparent resin material that ensures proper antenna operation. This multi-functional design eliminates the need for additional space dedicated solely to antenna placement.
Solution Approach 2:
The antenna is positioned on the inner surface of the imaging dome, utilizing the three-dimensional space of the dome structure. This spatial arrangement allows the antenna to be integrated into the existing capsule geometry without requiring additional volume or increasing the overall capsule size.
3Adaptability or versatility
If one set of illuminating unit and imaging unit is arranged at each end of the capsule-like casing for pantoscopic viewing, then the field of view is widened, but the antenna cannot be arranged at one end side and must be positioned between components, causing interference and size increase
Solution Approach 1:
The antenna is extracted from the crowded interior space between dual imaging units and electronic components, and repositioned on the inner surface of the imaging dome. This extraction resolves the spatial conflict created by the pantoscopic configuration while maintaining the widened field of view capability.
Solution Approach 2:
The dual-end imaging configuration is maintained for pantoscopic viewing, while the antenna is positioned on the curved inner surface of the imaging dome, utilizing the three-dimensional space efficiently. This spatial arrangement allows all components to coexist without interference, maintaining both the widened field of view and reliable antenna operation.
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
This configuration enables desirable antenna characteristics, such as wide directionality, while maintaining a compact capsule endoscope size, ensuring effective image transmission without disturbing the imaging operations.
Implementation Method 1
an antireflection coating is formed on an inner surface of the imaging dome
Data Source
AI summary
A body-insertable apparatus including a capsule-like casing, an illuminating unit, an imaging unit, and an antenna is provided. The capsule-like casing is formed in a capsule-like shape and includes a transparent imaging dome. The illuminating unit is arranged in the capsule-like casing and illuminates an examined site of a subject through the imaging dome. The imaging unit is arranged in the capsule-like casing and takes an image of the examined site illuminated by the illuminating unit. The antenna is arranged in the imaging dome at a position outside an imaging field of view of the imaging dome to transmit image information obtained through imaging by the imaging unit to an outside of the subject.