Coloproctological Device Illumination and Maneuverability
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Solution Overview
Problem
Existing medical surgical devices for coloproctological pathologies face challenges in providing optimal illumination and maneuvering space within the anal canal while being cost-effective and easy to assemble, as they often result in shadowy areas and limited visibility due to complex designs and multiple components.
Innovation Solution
A medical surgical device with a tubular body made of translucent plastic, featuring a light source positioned at the second end and an arched emitting surface that directs a cone-shaped light beam internally, combined with an entraining body to channel light through the internal wall, ensuring illumination of the lower portion and minimizing shadowy areas, and a handle forming a γ angle with the tubular body for enhanced maneuverability.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Area of stationary object
If a larger outer diameter of the tubular body is used, then the field of visibility in the anal canal is widened, but dilatation stresses in the patient's sphincter increase
Solution Approach 1:
The device is divided into two functional zones: an introvert portion with smaller diameter for insertion that minimizes sphincter stress, and a main body portion with larger diameter that provides adequate field of visibility. The introvert portion acts as a separate segment that can be inserted first, followed by the main body, thus resolving the contradiction between visibility area and stress on the sphincter.
2Illumination intensity
If double concentric tubes are used to improve light beam convergence, then visibility inside the tube is improved, but the space for diagnosis and operating is limited
Solution Approach 1:
The invention extracts the light guiding function from the complex concentric tube structure and implements it through a simplified single-tube design with strategically positioned light sources. The light sources are placed at specific locations on the tubular body to achieve optimal light convergence without requiring nested tube structures, thus preserving internal space for diagnostic and surgical operations.
3Illumination intensity
If multiple components and complex assembly are used to achieve light beam convergence, then illumination is improved, but manufacturing and assembly costs increase
Solution Approach 1:
The invention merges multiple functions into a single integrated tubular body structure. The light sources, reflecting surfaces, and structural elements are combined into one piece rather than requiring separate concentric tubes and multiple assembly steps. This integration significantly simplifies manufacturing and assembly processes while maintaining effective light beam convergence for illumination.
4Ease of manufacture
If the device is made with a single tubular body and simplified design, then manufacturing costs are reduced, but illumination effectiveness may be compromised
Solution Approach 1:
The invention applies local quality by positioning light sources at specific strategic locations on the tubular body and creating localized reflecting surfaces at precise positions. Rather than requiring complex structures throughout, the simplified single-tube design achieves effective illumination through carefully placed light-emitting and light-reflecting zones that converge light beams onto the target area.
Data Source
AI summary
A medical surgical device for coloproctological pathologies comprises a tubular body (2), provided with a first end (5), which can be inserted into the anal cavity, and a second end (6), opposite the first end (5) and connected to a handle (7) for maneuvering the tubular body (2) inside the anal cavity. A light source (8) for illuminating the inside of the tubular body (2) can be removably connected to the tubular body (2). Downstream of the light source (8) is located an entraining body (10) for entraining a portion of the light emitted by the light source (8) toward the inserting end (5). The entraining body (10) comprises a thickening (11) on the internal wall (3).