Viewing Trocar Imaging Device Extension Mechanism
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Solution Overview
Problem
Existing trocar assemblies lack enhanced visualization capabilities after insertion into a patient's body, with limited maneuverability and adjustability of imaging devices, providing only narrow and rigid imaging.
Innovation Solution
A viewing trocar assembly with imaging devices positioned on the outer wall that can be extended and angled for improved visualization, featuring a tubular body with imaging devices that can be moved between inactivated and activated positions, and a central control unit for image processing and display, including a piercing device and illumination for tissue visualization.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Adaptability or versatility
If the imaging device is rigidly affixed on the outer wall of the trocar, then the structure is simple and stable, but the imaging capability is limited to a narrow field of view and cannot be adjusted after insertion
Solution Approach 1:
The imaging device is made movable relative to the trocar body through a connector assembly that allows the imaging device to be positioned at multiple angles and extended outward. This dynamic positioning capability enables the imaging device to capture images from different directions and adjust the field of view after trocar insertion, resolving the contradiction between adaptability and device complexity.
2Area of stationary object
If a single imaging device is used on the trocar, then the device complexity is reduced, but the field of view remains narrow and limited
Solution Approach 1:
The imaging device is extended outward from the trocar body in a direction perpendicular to the longitudinal axis, creating a three-dimensional imaging configuration. This dimensional extension allows the imaging device to capture a wider field of view by positioning the imaging sensor away from the trocar surface, effectively increasing the imaging area without adding multiple devices.
3Ease of operation
If the imaging device is positioned adjacent to the outer wall in an inactivated position, then the trocar structure is compact, but the imaging capability is not accessible after insertion
Solution Approach 1:
The imaging device is separated from the trocar body through a movable connector assembly, allowing it to be positioned in distinct states: an inactivated position adjacent to the outer wall for compact storage during insertion, and an activated position extended outward for imaging after insertion. This segmentation enables the imaging function to be accessible when needed while maintaining a compact structure during critical insertion phases.
Data Source
AI summary
A viewing trocar assembly is provided including a tubular body having a proximal end and a distal end, and an opening provided at the distal end, and at least one imaging device positioned on an outer wall of the distal end of the tubular body, wherein the at least one imaging device is adjacent to the outer wall of the distal end of the tubular body when in an inactivated position, and wherein the at least one imaging device is extended further away from the outer wall of the distal end of the tubular body when in an activated position than when in the inactivated position.