Light guides for diagnostic, surgical and / or therapeutic devices

By designing the jacket surrounding the fiber bundle and optimizing the end face, the existing light wire insertion equipment and manufacturing fine light wires are solved, and the light wires with high brightness, low cost and high accuracy are achieved.

JP7657035B2Active Publication Date: 2025-04-04SCHOTT AG
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Patent Information

Application Number
JP2020161185
Authority / Receiving Office
JP · JP
Patent Type
Patents
Current Assignee / Owner
Priority Date
2019-09-26
Filing Date
2020-09-25
Publication Date
2025-04-04
Estimated Expiration
2040-09-25

AI Technical Summary

Technical Problem

Existing light wires are difficult to insert into the human body or perform in vitro cell examinations in diagnostic, surgical and therapeutic equipment, and the outer cover layer and sleeves of the light wires cause the size of the light wires to increase, making it difficult to create subtle light wires.

Method used

A light conductor is designed, consisting of a fiber bundle composed of at least two optical fibers and a jacket that at least partially surrounds the fiber bundle, which only exposes the outer surface of the fiber bundle when necessary, with a maximum longitudinal span-sectional dimension not exceeding 500 microns, and a terminal end face having a low surface roughness to reduce light loss.

Benefits of technology

It realizes the extremely thin and softness of the light wire, improves the brightness and accuracy of light transmission, is suitable for intra-human insertion and in vitro cell examination, and reduces the manufacturing cost of the light wire.

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Abstract

To provide a very thin light guide for being introduced into the human or animal body or for in-vitro examination of human or animal blood samples or other body cells.SOLUTION: A light guide 30 has a maximum outer lateral dimension of its cross-sectional area, for example an outer diameter, which is greater than the maximum outer lateral dimension, for example the outer diameter, of the cross sectional area of the fiber bundle by at most 500 μm, preferably by at most 200 μm, more preferably by at most 100 μm, and most preferably by at most 50 μm. The light guide has a proximal end 40 and a distal end 50, and has at least one terminated end face on at least one end 40, 50. The terminated end face has a maximum lateral outer dimension, for example an outer diameter, which is not larger than the maximum outer lateral dimension, for example the outer diameter, of the cross-sectional area of the light guide 30.SELECTED DRAWING: Figure 1
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