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Degradable implantation catheter carrying drug particles

A catheter and drug technology, applied in the medical field, can solve the problems of high systemic toxicity, difficult operation, time-consuming, etc., and achieve the effect of saving treatment costs

Inactive Publication Date: 2016-04-20
THE FIRST AFFILIATED HOSPITAL OF THIRD MILITARY MEDICAL UNIVERSITY OF PLA
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0002] Local placement of antineoplastic drugs can better overcome the defects of low local dose, poor effect and high systemic toxicity of traditional solid tumor treatment. However, the drug is placed directly on the tumor tissue and the distribution is in line with the plan, which is not only difficult to operate, but also requires frequent implantation operations, which takes a long time and increases the risk of trauma and treatment.

Method used

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  • Degradable implantation catheter carrying drug particles

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Embodiment Construction

[0015] figure 1 It is a schematic diagram of the structure of the present invention; as shown in the figure: the degradable implantable catheter carrying drug particles in this embodiment includes a catheter body 2 for containing the drug 1 and a spacer for separating the drug 1 inside the catheter body 2 The separated spacer block 3; the catheter body 2 is a flexible tubular structure with a certain hardness, and the drug 1 can be released from the nozzle at the end of the catheter body 2, or a hole can be processed on the side wall of the catheter body 2, so that the drug 1 can pass through the hole. Released, can realize the purpose of the present invention; The length and interval of the spacer block 3 can be reasonably set according to the diseased part, and then the drug 1 can be made to correspond to the diseased part after the catheter body 2 is implanted into the human body, and can be administered reasonably Drug 1 dose, and guarantee the therapeutic effect.

[0016...

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Abstract

The invention discloses a degradable implantation catheter carrying specific drug particles such as an iodine-125 brachytherapy source and sustained release drug particles such as sustained release fluorouracil particles and the like. The catheter comprises a catheter body for accommodating the drug particles and spacer blocks arranged in the catheter body and used for spacing drugs. The degradable implantation catheter carrying the drug particles can be loaded with sufficient antitumor drugs and carry the drugs to be implanted into a tumor part of a patient together, the antitumor drug particles realize predetermined distribution in the tumor, do not enter a blood vessel to be moved through flushing and can still keep predetermined distribution in fluid-containing and necrotic lacunas of a tumor body, and the implanted drug particles can follow a tumor change part correspondingly instead of being left outside a treated part when the catheter is degraded and the tumor body shrinks.

Description

technical field [0001] The invention relates to the medical field, in particular to a degradable implant catheter carrying drug particles. Background technique [0002] Local placement of antineoplastic drugs can better overcome the defects of low local dose, poor effect and high systemic toxicity of traditional solid tumor treatment. However, the drug is placed directly on the tumor tissue and distributed according to the plan, which is not only difficult to operate, but also requires frequent implantation operations, which takes a long time and increases the risk of trauma and treatment. [0003] Therefore, there is a need for a degradable implant catheter carrying drug particles, which is used to accommodate anti-tumor drugs, and then implanted with anti-tumor drugs into the patient's tumor site, and a sufficient amount of Anti-tumor drugs and realize the reasonable distribution of drug particles to achieve the best therapeutic effect. The degradability helps to realize...

Claims

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Application Information

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IPC IPC(8): A61M31/00
CPCA61M31/002A61M2202/0007A61M2205/04
Inventor 黄学全何闯杨丽
Owner THE FIRST AFFILIATED HOSPITAL OF THIRD MILITARY MEDICAL UNIVERSITY OF PLA
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