Photoelectric combined instrument and photodynamic therapy instrument

A device and optoelectronic technology, applied in the field of medical devices, can solve the problem of lack of oxygen singlet oxygen in photosensitive drugs

Active Publication Date: 2021-03-19
SHENZHEN INT INST FOR BIOMEDICAL RES
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

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Problems solved by technology

[0003] The main purpose of the present invention is to provide a photoelectric combined device, which aims to solve the pr...

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  • Photoelectric combined instrument and photodynamic therapy instrument
  • Photoelectric combined instrument and photodynamic therapy instrument
  • Photoelectric combined instrument and photodynamic therapy instrument

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Embodiment Construction

[0034] The following will clearly and completely describe the technical solutions in the embodiments of the present invention with reference to the accompanying drawings in the embodiments of the present invention. Obviously, the described embodiments are only part of the embodiments of the present invention, not all of them. Based on the embodiments of the present invention, all other embodiments obtained by persons of ordinary skill in the art without creative efforts fall within the protection scope of the present invention.

[0035] It should be noted that all directional indications (such as up, down, left, right, front, back...) in the embodiments of the present invention are only used to explain the relationship between the components in a certain posture (as shown in the accompanying drawings). Relative positional relationship, movement conditions, etc., if the specific posture changes, the directional indication will also change accordingly.

[0036] In the present in...

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Abstract

The invention discloses a photoelectric combined instrument and a photodynamic therapy instrument. The photoelectric combined instrument comprises a laser device and an electrolyzer; an electrode of the electrolyzer and an optical fiber of the laser device can simultaneously act on lesion tissue in which a photosensitive drug is preset; the laser device emits a laser to activate the photosensitivedrug preset in the lesion tissue; the electrolyzer can electrolyze tissue fluid in the lesion tissue to generate sufficient oxygen, so that the photosensitive drug can be activated and fully has a photoreaction with the oxygen to generate singlet oxygen to kill pathological cells, so that the effect of photodynamic therapy is improved. According to the photoelectric combined instrument, continuous photodynamic therapy is realized, the pathological cells are effectively killed, and the problem that the therapy effect is severely weakened due to environment hypoxia of the photodynamic therapy is solved.

Description

technical field [0001] The invention relates to the technical field of medical instruments, in particular to a photoelectric combined instrument and a photodynamic therapy instrument. Background technique [0002] Photodynamic therapy (PDT) is a new approach to treat tumor diseases with photosensitizing drugs and laser activation. Irradiating the tumor site with a specific wavelength can activate the photosensitive drug selectively accumulated in the tumor tissue, triggering a photochemical reaction to destroy the tumor. The photosensitizing drug in the new generation of photodynamic therapy (PDT) will transfer energy to the surrounding oxygen to generate highly active singlet oxygen. Singlet oxygen can oxidize with nearby biomacromolecules to produce cytotoxicity and kill tumor cells. Compared with traditional tumor therapy, the advantage of PDT is that it can be precisely and effectively treated, and the side effects of this therapy are also small. However, hypoxia in t...

Claims

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Application Information

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IPC IPC(8): A61N5/06A61N5/067A61N1/18A61N1/05
CPCA61N5/062A61N1/18A61N1/0502A61N5/067Y02E60/36
Inventor 谢中建卢锐涛孟祥英
Owner SHENZHEN INT INST FOR BIOMEDICAL RES
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