Shanghai United Imaging Healthcare Co., Ltd.

Shanghai Jiaotong University

Hach Company

Fan Zhao

Yue Ping Li

Lu Wang

Xu Chu

Guoping Zhu

Jing Sun

Jinglin Wu

Bin Cao

Tieshan Zhang

Mark Mao

Jihong Huang

Fujun Wang

Sun Chen

Kai Bai

Zhihui Shu

Thomas Coerper

Kun Sun

Yanan Lu

A preparation method of drug-loaded micelles of an absorbable vascular stent coating for angiostenosis in an infant is provided, including the following steps: S1: dissolving a drug to be encapsulated in an appropriate amount of an emulsifying agent, adding a chitosan-poly(p-dioxohone) amphiphilic block copolymer (chitosan-b-PPDO copolymer), and thoroughly mixing to obtain a drug-copolymer solution; S2: adding the drug-copolymer solution obtained in S1 dropwise to an emulsifying agent aqueous solution prepared in advance, and continuously stirring to obtain a stable drug-loaded micellar solution; and S3: removing the emulsifying agent from the micellar solution obtained in S2 through vacuum evaporation, stirring a resulting concentrate, and centrifuging the concentrate to obtain a supernatant; and filtering the supernatant to obtain a filtrate, and subjecting the filtrate to dialysis to obtain the drug-loaded micelles.

Preparation method of absorbable vascular stent coating for angiostenosis in infant

The present disclosure relates to systems and methods for energy imaging. The method may include obtaining a reference waveform of a tube voltage of a radiation source of a scanner. The reference waveform may be formed based on a superposition of a sine wave and one or more harmonics corresponding to the sine wave. The method may include causing a high voltage generator to generate the tube voltage changing between a first voltage and a second voltage lower than the first voltage according to the reference waveform. The tube voltage may be provided to the radiation source for generating radiation rays. The method may further include causing the scanner to perform energy imaging.

Systems and methods for X-ray imaging

Monochromator housing

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Shanghai, China

Fan Zhao