Nantong University

Wuxi Second People's Hospital

Yang Wang

Bo Liu

Yan Zhang

Peng Jiang

Haijun Zhang

Ninghan Feng

Dandan Zheng

Heyi Miao

Hong Dai

Cheng Qian

Yang Shen

Menglu Li

Yong Ling

Beibei Zhou

Ye Hua

Yangkun Feng

Meiling Huang

Yuwei Zhang

A method of preparing a urinary catheter having a balloon of three cavities at a top end thereof includes: step 1, preparing a catheter having one urinary guiding cavity and three water injection cavities, cutting two ends of the catheter to be flat; step 2, cutting from a top end of the catheter having the four cavities from the catheter longitudinally to form three separated catheters, each having one second cavity, closing a top end of each of the three catheters; step 3, hot-pressing the three catheters by placing the three catheters in a steel plate for 40° C. to 60° C. and 5 min to 15 min at 5 kg to 7.5 kg, trimming the outer wall of the catheters; step 4, connecting top ends of the catheters to each other, taking a guide thread to pass through the urinary guiding cavity to be connected to the top ends of the catheters.

Method of preparing urinary catheter having balloon of three cavities at top end of urinary catheter

The disclosure relates to a preparation method and use of a pyrazole compound containing 1-(3,4-dimethoxyphenyl)-β-carboline unit. The pyrazole compound is prepared by reacting pyrazole aldehyde and 1-(3,4-dimethoxyphenyl)-β-carboline acylhydrazine. The pyrazole compound containing 1-(3,4-dimethoxyphenyl)-β-carboline unit has good inhibitory activity against tumor cell HGC-27. The pyrazole compound could be used in the preparation of anti-tumor drugs.

Preparation method and use of pyrazole compound containing 1-(3,4-dimethoxyphenyl)-β-carboline unit

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Jiangsu, China

Yang Wang