Handheld Laser Fluorescence Probe Dodging Lens Distance
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Solution Overview
Problem
Existing fluorescence spectrum probes have relatively low detection precision, which is a significant challenge in biological medical applications for early disease diagnosis.
Innovation Solution
A handheld laser fluorescence spectrum probe assembly is designed with a pen-like tube, optical fiber, and a tube sleeve, where the optical fiber is connected with a dodging lens to ensure uniform light excitation and fluorescence collection, and the tube sleeve maintains a consistent distance of 22-28 mm from the patient's body, improving precision and accuracy.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Measurement precision
If existing fluorescence spectrum probes are used, then the device can perform fluorescence detection, but the detection precision is relatively low
Solution Approach 1:
The patent optimizes the distance parameter between the dodging lens and tissue surface (22-28mm) to improve detection precision. This parameter change ensures uniform light excitation and fluorescence collection, directly addressing the low detection precision problem of existing probes
Solution Approach 2:
The patent introduces a dodging lens as an intermediary optical element between the optical fiber and the tissue. This lens mediates the light transmission to achieve uniform excitation and collection of fluorescence, thereby improving both detection precision and accuracy
2Ease of operation
If the probe structure is fixed, then the distance control is simplified, but the operator error increases due to difficulty in maintaining consistent distance
Solution Approach 1:
The patent pre-configures the tube sleeve with a built-in scale that indicates the correct distance (22-28mm) from the dodging lens to the tissue surface. This preliminary preparation allows operators to easily maintain the optimal distance without requiring complex adjustment mechanisms, thus improving ease of operation while preserving detection precision
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
The solution enhances detection precision and accuracy by ensuring uniform fluorescence excitation and collection, reducing operator error and allowing for easier use by medical staff, while also enabling easy replacement of the tube sleeve for cost-effective long-term use.
Implementation Method 1
a first end of the optical fiber is inserted in the handheld pen-like tube from a second end of the handheld pen-like tube
Implementation Method 2
the first end of the optical fiber is connected with a dodging lens, and a distance between an end face of an end of the dodging lens away from the optical fiber and an end face of a second end of the tube sleeve is 22-28 mm
Implementation Method 3
Natural tissue fluorophores (molecules emitting fluorescence when excited by light with a suitable wavelength) may be sensitive to chemical composition and chemical environment changes
Data Source
AI summary
The present disclosure provides a handheld laser fluorescence spectrum probe assembly, which relates to the technical field of fluorescence spectrum detection, and is designed for solving the problem of low detection precision with fluorescence spectrum detection. The handheld laser fluorescence spectrum probe assembly includes a handheld pen-like tube, an optical fiber, and a tube sleeve, wherein a first end of the tube sleeve is detachably connected with a first end of the handheld pen-like tube; a first end of the optical fiber is inserted in the handheld pen-like tube from a second end of the handheld pen-like tube, the first end of the optical fiber is connected with a dodging lens, and a distance between an end face of an end of the dodging lens away from the optical fiber and an end face of a second end of the tube sleeve is 22-28 mm.