In-body Camera Gripping Portion for Endoscopic Retrieval
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Solution Overview
Problem
Existing in-body monitoring camera systems face difficulties in easily retrieving the camera unit from the body due to the need for different gripping portions for insertion and retrieval, which complicates the process and requires multiple trocars or forceps with different orientations.
Innovation Solution
The camera system incorporates a gripping portion with a circular arc shape and grooves that allows displacement with medical instruments during insertion while rotating with a contact point as the center during retrieval, facilitating easy retrieval without changing gripping portions.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Strength
If a gripping portion with excellent rigidity is used for attachment, then the gripping portion can be firmly gripped to keep the posture of the camera unit, but the camera unit cannot be easily rotated during retrieval
Solution Approach 1:
The gripping portion is designed to dynamically change its functional state based on the operation phase. During attachment, the rigid structure provides firm gripping. During retrieval, the circular arc shape enables rotational movement when force is applied at specific points, transforming the gripping portion from a static rigid structure to a dynamic element that can rotate to facilitate extraction through the trocar.
Solution Approach 2:
The gripping portion is designed with a circular arc shape in top view rather than a straight or angular form. This curvature allows the gripping portion to naturally rotate around its center point when force is applied, enabling the camera unit to be rotated during retrieval without requiring complex mechanical mechanisms. The circular geometry inherently facilitates rotational movement while maintaining structural integrity.
2Reliability
If different gripping portions are used for insertion and retrieval, then the camera unit can be firmly attached and retrieved, but the procedure becomes complex requiring multiple trocars or forceps
Solution Approach 1:
The gripping portion is designed to serve multiple functions: it provides firm gripping for attachment, enables rotational movement during retrieval, and can be manipulated with standard forceps through the same trocar. This multi-functional design eliminates the need for different gripping portions or multiple trocars, simplifying the overall procedure while maintaining reliability in both attachment and retrieval operations.
Solution Approach 2:
The invention merges the functions of attachment gripping and retrieval rotation into a single integrated gripping portion structure. Rather than using separate components for insertion and retrieval, the circular arc-shaped gripping portion combines both functionalities, allowing the same component to be used for both attaching the camera unit and facilitating its rotation during extraction through the same trocar.
3Ease of operation
If the gripping portion is formed on the edge of the camera unit, then it provides good leverage for gripping, but it causes the camera unit to be caught when retrieved through the trocar
Solution Approach 1:
The gripping portion is designed with a circular arc shape positioned away from the edge of the camera unit. This curved geometry allows the gripping portion to rotate smoothly around its center point during retrieval, preventing the edge of the camera unit from catching on the trocar walls. The circular form ensures that during rotational movement, the profile remains consistent and does not create points of obstruction.
Solution Approach 2:
The gripping portion acts as an intermediary element between the forceps and the camera unit body. By positioning the gripping portion away from the edge and giving it a circular arc shape, it serves as a mediator that can be gripped and rotated without transferring the harmful catching effect to the camera unit edge during retrieval through the trocar.
Data Source
AI summary
It becomes possible to easily retrieve an imaging portion from the inside of a body. When receiving an external force from forceps (33), the gripping portion (22) causes a camera unit (11) to be displaced following displacement of the forceps (33) while maintaining a posture of the camera unit (11) with respect to the forceps (33), and, when receiving an external force other than the external force from the forceps (33), the gripping portion (22) causes the camera unit (11) to rotate with a contact point (61) as a center, or causes the camera unit (11) to rotate so that the contact point (61) is rotationally moved.