Fluorescent Indwelling Clip for Stable Hollow Organ Marking
Find Innovative SolutionsGenerate Solutions
Solution Overview
Problem
Existing surgical markers for hollow organs face challenges in providing stable attachment to the inner wall and efficient visual recognition of light emission due to fluorescence attenuation and complexity issues, particularly with LED-based and fluorescent luminescent substances.
Innovation Solution
An indwelling clip with a pair of arm plate portions and a fastening ring, featuring a fluorescent body containing a pigment that emits red or near-infrared light, allowing for stable attachment and minimal fluorescence attenuation through the use of a metal fastening ring and elastic arm plates.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Device complexity
If a resin material containing fluorescent pigment is used for the tubular member, then the clip can be made compact and portable, but the attachment stability to the hollow organ inner wall deteriorates
Solution Approach 1:
The clip is divided into two distinct parts: the tubular member made of resin material containing fluorescent pigment for compactness and portability, and the arm portion made of elastic material for stable attachment. This segmentation allows each part to be optimized for its specific function without compromising the other.
Solution Approach 2:
The clip combines different materials with complementary properties: resin material with fluorescent pigment provides compactness and visual recognition, while elastic material provides attachment stability. This composite structure resolves the contradiction by integrating materials that would individually be insufficient for their respective functions.
2Illumination intensity
If LED is used as the illuminant, then the light emission intensity is improved, but the device complexity and size increase
Solution Approach 1:
The fluorescent pigment is extracted from the traditional LED illuminant and incorporated into the tubular member material itself. This allows the clip to emit light without requiring a separate power supply or complex LED mechanism, thereby maintaining high light emission intensity while reducing device complexity.
Solution Approach 2:
The tubular member containing fluorescent pigment serves dual functions: it provides structural support as a component of the clip and simultaneously acts as the light-emitting element. This self-service approach eliminates the need for separate illuminant components, reducing overall device complexity while maintaining illumination capability.
3Device complexity
If fluorescent luminescent substance is used, then the device complexity is reduced, but the fluorescence intensity to the outside is weak
Solution Approach 1:
The fluorescent pigment is concentrated in the tubular member, which is positioned at the tip of the clip where light emission is most needed. This local concentration ensures that the fluorescent material is placed where it can most effectively emit light to the outside, maximizing intensity while maintaining overall device simplicity.
Solution Approach 2:
The tubular member provides a curved, reflective surface that directs and concentrates the fluorescent light emission toward the outside of the hollow organ. This curved geometry enhances the effective fluorescence intensity by preventing light loss through absorption or scattering, while the simple tubular structure maintains low device complexity.
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
Enables easy visual recognition of light emission from outside the hollow organ with improved attachment stability, minimizing fluorescence loss and ensuring secure fastening to the inner wall.
Implementation Method 1
a fluorescent body (3) containing a fluorescent pigment emitting red or near infrared light by being irradiated with excitation light
Data Source
AI summary
An indwelling clip includes a pair of arm plate portions capable of opening in a substantially V shape with an elastic force, claw portions formed on respective tip portions of the arm plate portions, and a fastening ring attached to the arm plate portions so as to be movable along a longitudinal direction of the pair of arm plate portions and be able to close the pair of arm plate portions by moving in a direction toward the claw portions. The arm plate portion is provided with a fluorescent body containing a fluorescent pigment emitting red or near infrared light by being irradiated with excitation light.