Chinese Academy of Sciences

Abb Schweiz Ag

Microport Neurotech (shanghai) Co., Ltd.

Shanghai Zhongke Shenguang Optoelectronics Industry Co., Ltd.

Yiqun Bruce Wang

Yu Chen Zhou

Jian Zhou

Bing Chen

Timo Holopainen

Peng Yu

Yunyun Liu

Zhiyong Xie

Li Song

Jianfeng Sun

Zhiyong Lu

Lijuan Wang

Hairui Yu

Qiaorong Jin

Yueli Xi

Yuanyi Guo

Yunfei Peng

Zhaohui Fei

Mengqi Chang

Peipei Hou

Heng Lin

Xu Zha

Xueli Luo

An apparatus and method herein efficiently couple spatial light to optical fiber light for achieving stability of an optical axis without a position sensor. The basic concept of the method includes: first, obtaining, according to a theoretical coupling efficiency model, a model parameter by means of fitting calculation; second, using a four-point tracking algorithm to calculate an optical fiber nutation trajectory according to the optical fiber nutation principle; and finally, using the nutation trajectory to calculate the position deviation of a central point. The optical axis is ensured to be stable by correcting the position deviation, and the high coupling efficiency remains. The method is used for the stability of the optical axis in a space coherent laser communication DPSK link. The high efficiency coupling is a key technology of long-distance, high bit rate transmission in space laser communication, and is significant in the development of inter-satellite optical communications.

Apparatus and method for coupling the spatial light to the optical fiber light for achieving the stability of an optical axis without a position detector

An embolic coil conveying device and a preparation method thereof are disclosed. The embolic coil conveying device includes a pusher and an embolic coil. A distal end of the pusher and a proximal end of the embolic coil are connected to serve as a detachment section. A stretch-resistant thread is disposed in the embolic coil. The stretch-resistant thread is fixed at the proximal end of the embolic coil. A conductive wire is disposed in the pusher. The stretch-resistant thread is connected to the conductive wire. Compared with the prior art, the present invention has the advantages that the stretch-resistant thread is fixed at the proximal end of the embolic coil, so that the stretch-resistant thread is connected to the conductive wire, thereby reducing the length of the detachment section, making the detachment section more flexible, and avoiding kick-out of a microcatheter due to release of the embolic coil.

Embolism coil conveying device and preparation method therefor

A rotation apparatus comprises a machine base and a stator. The machine base comprises a driving end intermediate support board and a non-driving end intermediate support board disposed parallel along the length direction of the machine base. Inner holes used for supporting the stator are separately provided in the driving end intermediate support board and the non-driving end intermediate support board. The inner holes in the driving end intermediate support board are asymmetrical on the top and the bottom. The vibration of the rotation apparatus can be effectively reduced, the output power is improved, and a good cooling effect is provided.

Rotation apparatus having machine base with differently shaped support boards

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Shanghai, China

Yiqun Bruce Wang