Optical Waveguide Light Radiator for Non-Contact Tissue Cauterization
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Solution Overview
Problem
Existing light radiating devices require tight contact with the biological tissue to perform solidification or cauterization due to light reflection and heat generation around the metal sleeve, limiting their application.
Innovation Solution
A light radiating device utilizing an optical waveguide with a reflection surface and a catoptric system that condenses light beams away from the device, allowing for non-contact solidification or cauterization by reflecting and focusing light on a target using a catoptric system with various reflection surface shapes.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Temperature
If light is output from a metal sleeve and propagates through an optical fiber member, then light can be delivered to the biological tissue, but heat is generated only around the metal sleeve requiring tight contact with the tissue
Solution Approach 1:
The patent introduces a catoptric system as an intermediary component between the optical fiber and the biological tissue. This system includes a reflector and a condenser that redirect and concentrate the light beam onto the tissue surface, enabling heat generation at a distance without requiring tight contact between the device and the tissue.
Solution Approach 2:
The patent employs a catoptric system that operates in three-dimensional space to redirect light rays. The reflector and condenser are positioned at specific angles and distances from the optical fiber output, creating a spatial configuration that allows non-contact delivery of concentrated light to the tissue target.
2Illumination intensity
If light is reflected off the inner wall of the optical fiber member and diffused, then light can be directed toward the tissue, but heat generation is limited to the area around the metal sleeve
Solution Approach 1:
The patent utilizes curved reflective surfaces in the catoptric system to concentrate light. The reflector and condenser are designed with specific curvatures that redirect divergent light rays from the optical fiber and converge them into a concentrated beam on the tissue surface, transforming the diffused light distribution into a focused thermal pattern.
Solution Approach 2:
The patent changes the geometric parameters of the light path by introducing the catoptric system with specific reflector and condenser positions. This transforms the light distribution pattern from a diffuse pattern around the metal sleeve to a concentrated focal point on the tissue, thereby enhancing heat generation at the target area.
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 solidification or cauterization of biological tissues without direct contact, enhancing heat generation at the target area while maintaining distance.
Implementation Method 1
an optical waveguide having an inner circumferential side wall provided with a reflection surface totally reflecting the light beam, causing the light beam emitted from the light source to enter a part enclosed by the inner circumferential side wall from one end, and sending the light beam to another end
Implementation Method 2
a catoptric system reflecting the light beam sent to another end of the optical waveguide and condensing the light beam on the radiation target
Data Source
AI summary
A light radiating device (1A) performs solidification or cauterization of a biological tissue (PL) by radiating a light beam (BM). A light source (10A) emits the light beam (BM). An optical waveguide (20A) is a member being provided with a reflection surface (21A) totally reflecting the light beam (BM) on an inner circumferential side wall, causing the light beam (BM) emitted from the light source (10A) to enter a part enclosed by the inner circumferential side wall from one end, and sending the light beam (BM) to the other end. A catoptric system (30A) reflects the light beam (BM) sent to the other end of the optical waveguide (20A) and condenses the light beam (BM) on the biological tissue (PL).