Temperature controllable heat therapeutic embolizing sponge powder an its preparation process

Abstract

The invention relates to temperature controlled thermotherapy embolism sponge particles, which comprise macromolecular material and magnetic responding particles contained therein, the magnetic responding particles made of alloy material having a Curie temperature of 40-65 deg. C are dispersed in a cross-linked network formed by high polymers, the thermotherapy embolism sponge particles have grain diameter of 50-2000um, the water absorption rate is no less than 5 times of the amount of the particles, the magnetic responding particles account to 0.5-45 wt% of the total embolism sponge particles. The invention also discloses the process for preparing the embolism sponge particles.

Description

technical field

[0001] The invention relates to thermotherapy embolization sponge particles and a preparation method thereof, in particular to temperature-controllable thermotherapy embolization sponge particles and a preparation method thereof. Background technique

[0002] According to the statistics of "Top Ten Disease Death Rates and Causes of Death in Some Cities and Counties in 2003" in "Summary of Health Statistics in China in 2004", the mortality rate of malignant tumors in China in 2003 was 134.54 / 100,000, which was significantly higher than that in the Cerebrovascular disease ranks second in the mortality rate (105.40 / 100,000). Malignant tumors have become the biggest killer threatening the life and health of our people. General conventional treatment: surgical resection, systemic chemotherapy, radiotherapy, etc., the treatment effect is poor, and it is easy to relapse.

[0003] The discovery and application of arterial embolizatio...