Optical phantom for simulating laser surgery and its mold structure and preparation method

Abstract

The invention relates to an optical simulation body for laser surgery simulation, and a mold structure and a preparation method thereof. The mold structure comprises a profiling die set and a shell; the profiling die set comprises a first focus profiling die, a second focus profiling die and a normal tissue split interface profiling cover, the first focus profiling die and the focus solid-liquid reversible block formed by the second focus profiling die are positioned in the shell. After the normal tissue optical simulation body is formed outside the first focus profiling mold, the first focusprofiling die is directly taken out to form a non-closed focus cavity, and a focus tissue optical simulation body formed by perfusion is directly directed to the surface from the inner part of the normal tissue optical simulation body; after the normal tissue optical simulation body is formed outside the focus solid-liquid reversible block, the focus solid-liquid reversible block is extracted to form a closed focus cavity, and the focus tissue optical simulation body formed by perfusion goes deep into the normal tissue optical simulation body. The optical simulation body can be prepared at a low temperature or at a normal temperature, and the position of the optical simulation body can be accurately controlled.

Description

technical field [0001] The invention relates to the technical field of phantom models, in particular to an optical phantom for simulating laser surgery, a mold structure and a preparation method thereof. Background technique [0002] In recent years, laser surgery based on photothermal effect has been widely used in the treatment of ophthalmology, dermatology and stomatology. Because of the characteristics of precise treatment of lesions, less pain and less bleeding, laser is favored by clinicians and has achieved considerable development and wide application in clinic. However, due to the practical problems of choosing parameters such as laser wavelength, working mode, pulse energy / output power, pulse width, and spot size in actual laser surgery, and the actual situation of clinical lesions is complex and changeable, it is difficult for clinicians to find the best one. Laser treatment parameters and treatment techniques have risks of poor curative effect and side effects. ...

AI Technical Summary

Problems solved by technology

In this way, it is impossible to simulate the changes of tissue optical and thermal properties and protein denaturation during laser surgery;

[0008] (2) It is difficult to simulate the liquid environment of tissues

However, due to the presence of body fluids in human tissue (such as blood, etc.), the all-solid structure of this 3D printed optical phantom will be difficult to simulate the evaporation of water after the photothermal effect of human tissue by laser irradiation;

[0009] (3) The efficiency is low and cannot meet the actual clinical needs

3D printing technology has higher precision but slower speed

If printing a large lesion, such as a large venous malformation, the printing time is particularly long, it is difficult to prepare optical phantoms in batches, and it cannot meet the actual needs of clinicians for preoperative training and treatment plan optimization

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