Light Diffusing Optical Fiber Radial Expansion for Tubular Organ Therapy
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Solution Overview
Problem
Conventional therapies using optical fibers in tubular organs face challenges in delivering light in multiple directions, achieving consistent thermal distribution, and uniformly expanding tissues, as they lack the ability to provide real-time temperature and expansion range information, and often require permanent solutions like catheters or stents.
Innovation Solution
An energy delivery device featuring a light diffusing optical fiber with a contraction unit formed by a wire, a movement unit, and an expansion adjustment unit, which expands radially to maintain a consistent distance from the tissue, equipped with temperature and pressure sensors to monitor treatment efficacy in real-time.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Adaptability or versatility
If conventional optical fibers are used to deliver light in tubular organs, then light delivery is simple, but light can only be delivered in straightforward or lateral direction without multi-directional capability
Solution Approach 1:
The patent applies local quality by creating a light diffusing tip at the end of the optical fiber, where the optical fiber is surrounded by a light diffusing material. This localized modification enables light to be emitted in multiple directions (360 degrees radially) from the tip, while the rest of the optical fiber structure remains simple and maintains its light transmission function. This resolves the contradiction by providing multi-directional light delivery capability only where needed at the treatment site.
2Shape
If catheters or stents are used to expand tubular organs, then the lumen can be expanded, but permanent treatment is impossible and the organs cannot be restored to original state
Solution Approach 1:
The patent applies dynamics by using a shape memory alloy wire that can dynamically change its shape between expanded and contracted states in response to temperature changes. The wire is configured to expand the tubular organ lumen when heated to a transformation temperature, and return to its original contracted state when cooled. This dynamic reversibility allows the organ to be expanded temporarily during treatment and then restored to its original state, eliminating the need for permanent stents or catheters.
3Manufacturing precision
If optical fibers are inserted into tubular organs for treatment, then lesion tissues can be treated, but it is difficult to center the optical fiber to achieve consistent therapeutic effect and constant temperature distribution
Solution Approach 1:
The patent applies equipotentiality by using a radially symmetric light diffusing tip structure that emits light uniformly in all directions (360 degrees) around the optical fiber. The shape memory alloy wire is also configured with radial symmetry, expanding uniformly in all directions when activated. This symmetric configuration ensures that regardless of the optical fiber's exact position or orientation within the tubular organ, the light and mechanical expansion are distributed evenly, achieving consistent therapeutic effect and constant temperature distribution without requiring precise centering.
4Reliability
If conventional optical fiber therapy is used, then treatment can be delivered, but real-time information on temperature distribution and expansion range cannot be obtained
Solution Approach 1:
The patent applies feedback by integrating temperature sensors and pressure sensors into the treatment device. The temperature sensor monitors the temperature distribution in real-time during laser irradiation, and the pressure sensor detects the expansion range and mechanical forces applied to the tubular organ. This real-time feedback information is fed back to the control system, allowing for dynamic adjustment of treatment parameters to ensure safe and effective therapy, and preventing overheating or excessive expansion.
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 effective, multi-directional light delivery and tissue expansion, providing real-time temperature and pressure data for improved therapeutic outcomes while allowing for safe and efficient treatment of tubular organs, reducing recovery time and healthcare costs.
Implementation Method 1
a light diffusing optical fiber connected between a laser device and a fixing tip and delivering light
Implementation Method 2
delivering energy to a tubular organ by an optical fiber for treatment and expanding a tissue in the tubular organ
Implementation Method 3
installing a temperature sensor and a pressure sensor in the contraction unit, thereby enabling to provide a temperature distribution and an expansion range of a tissue in a tubular organ in real time
Data Source
AI summary
The present invention relates to an energy delivery device for expanding a tubular organ, the energy delivering device delivering energy to a tubular organ by an optical fiber for treatment and expanding a tissue in the tubular organ, the device comprising a light diffusing optical fiber connected between a laser device and a fixing tip and delivering light; a contraction unit having one end connected to the fixing tip and arranged in a circumference of an end of the light diffusing optical fiber; a movement unit closely adhered to the other end of the contraction unit, in which the light diffusing optical fiber is inserted; and an expansion adjustment unit adjusting a moving distance of the movement unit and expanding the contraction unit in a radial direction while contracting the contraction unit.