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Photodynamic therapy instrument used in human body cavity and cavity organ

A photodynamic therapy and cavity technology, applied in the fields of treatment, phototherapy, radiation therapy, etc., can solve the problems of natural cavity folds, local high temperature of the light emitting structure, uneven irradiation, etc., to improve output power, improve Treatment efficiency, ensure uniform effect

Active Publication Date: 2021-02-26
GENERAL HOSPITAL OF PLA
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0005] The present invention aims at the problems in the prior art that there are wrinkles in the natural cavity during photodynamic therapy, the irradiation

Method used

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  • Photodynamic therapy instrument used in human body cavity and cavity organ
  • Photodynamic therapy instrument used in human body cavity and cavity organ
  • Photodynamic therapy instrument used in human body cavity and cavity organ

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0084] Example 1 A photodynamic therapy device for transurethral treatment of bladder cancer

[0085]A photodynamic therapy device for treating bladder cancer through the urethra, which includes a main access catheter 1; a light emitter 3 that emits light of an effective wavelength is arranged in the main access catheter 1, and a distracting scattering balloon is arranged on the outside of the main access catheter 1 2. The main entry catheter 1 is set to expand the liquid-filled pipeline 11 for filling the scattering balloon 2 and the pipeline opening 12 communicated with the expansion scattering balloon 2; Stretch into the pipeline 13; in addition, a cooling structure capable of cooling the light emitter 3 is set in the stretching pipeline 13; the liquid-filled connecting pipe 111 extended from the liquid-filled pipeline 11 is connected to the liquid-filled structure; the liquid-filled structure is provided with a control liquid-filled structure. The structure of the volume; ...

Embodiment 2

[0099] Example 2 A photodynamic therapy device for transurethral treatment of bladder cancer

[0100] On the basis of Embodiment 1, one group of optical fiber bundles 32 is set to three groups of optical fiber bundles 32, specifically:

[0101] Three groups of optical fiber bundles 32 are respectively connected to three light generators, each light generator emits light of the same or different wavelengths, and the light generators are connected to a control structure 34 that can separately control the emission wavelength and output power of each light generator; Three optical fiber bundles 32 extend into one scatterer 31; the three optical fiber bundles 32 are simultaneously opened to increase the amount of light, and only one optical fiber bundle 32 is opened to increase the light intensity on the open side for targeted irradiation. The control structure 34 can realize the adjustment of the input power of each fiber bundle 32 of multiple fiber bundles 32, adjust the ratio of...

Embodiment 3

[0102] Example 3 A photodynamic therapy device for transurethral treatment of bladder cancer

[0103] On the basis of Embodiment 1, the setting method of the expansion cavity 42 is distinguished, specifically: the expansion cavity 42 is an inflatable sac cavity arranged on the outside of the insertion tube, and the circulation pipeline 41 extends into the inflatable cavity by extending into the tube wall. The capsule cavity is formed; the light emitter 3 sends the scatterer 31 into the enlarged cavity 42 through the pipeline 13 . By arranging a soft inflatable cavity 46, the diameter of the protruding tube can be reduced, reducing the size requirements of the overall structure; the liquid return connecting pipe 45 of the circulating connection tube 43 that can inflate the cavity is connected to a pressure switch valve 451. After the inflatable bag cavity 46 is inflated and reaches a certain pressure, the pressure switch valve 451 is opened to circulate the cooling liquid. The...

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Abstract

The invention discloses a photodynamic therapy instrument used in a human body cavity and a cavity organ. The photodynamic therapy instrument comprises a main entry catheter, a light emitter for emitting effective wavelength light and an opening scattering balloon arranged on the outer side of the main entry catheter are arranged in the main entry catheter, a liquid filling pipeline for filling liquid into the opening scattering balloon and a pipeline opening which communicates with the opening scattering balloon are arranged in the main entry catheter, an extending-into pipeline for the lightemitter to extend into is arranged in the main entry catheter, in addition, a cooling structure capable of cooling the light emitter is arranged in the extending-into pipeline, a liquid filling connecting pipe extending out of the liquid filling pipeline is connected with a liquid filling structure, the rear end of the light emitter is connected with a light generator, and the main entry catheteris of a structure with a closed front end and a round end. During use, the light emitter is firstly sent to a proper position through the extending-into pipeline, then the main entry catheter is sentto a lesion position through a human body cavity, then the opening scattering balloon is expanded to be filled with scattering liquid, then the light generator is started, and light is emitted through the light emitter and gradually and evenly scattered to the surface of the scattering balloon.

Description

technical field [0001] The invention belongs to the technical field of tumor treatment instruments, and in particular relates to an instrument for treating tumors in the human body cavity; in particular, it relates to a photodynamic therapy instrument used in the cavity of the human body and hollow organs. Background technique [0002] The natural orifices of the human body include the digestive tract, urinary tract, reproductive tract, nasal cavity, external auditory canal and nasolacrimal duct, etc.; the number of tissue tumor lesions occurring in the human orifice is increasing. For example, according to the statistics of the World Health Organization in 2018, the global bladder The age-standardized incidence rate of cancer is 9.6 / 100,000 for males and 3.2 / 100,000 for females, ranking 10th among malignant tumors, with over 540,000 new cases per year. Worldwide, there are about 530,000 new cases of cervical cancer every year. How to carry out targeted treatment on the tumo...

Claims

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Application Information

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IPC IPC(8): A61N5/06
CPCA61N5/0603A61N5/062A61N2005/0651A61N5/067
Inventor 顾瑛孙圣坤谭一舟邱海霞陈德福赵洪友曾晶王颖
Owner GENERAL HOSPITAL OF PLA
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