[1] ZHANG Mei, WANG Zhao-qi.Design of an objective lens for womb electronic endoscope with high definition, non-blind spot and thinner outer diameter[J].Acta Photonica Sinica, 2008, 37(2): 328-331.
[2] BUTANI M S.Endoscopic ultrasonography[J].Endoscopy, 2002, 34(11): 888-895.
[3] FUSAROLI P, VALLAR R, TOGLIANI T, et al.Scientific publications in endoscopic ultrasonography: A 20-year global survey of the literature[J].Endoscopy, 2002, 34(6): 451-456.
[4] MORIMICHI F, KENICHIRO H, HIROSHI N.Endoscopic ultrasonography of the esophagus[J].World Journal of Surgery, 2000, 24(2): 216-226.
[5] UEHA S, TOMIKAWA Y.Ultrasonic motors: theory and application[M].Oxford: Clarendon Press, 1993: 5-7.
[6] MORITA T, KUROSAWA M, HIGUCHI T.A Cylinder micro-ultrasonic motor (stator transducer size: 1.4 mm in diameter and 5.0 mm long)[J].Ultrasonics, 2000, 38(1-8): 33-36.
[7] DONG Shu-xiang, LIM S P, LEE R H, et al.Piezoelectric ultrasonic micromotor with 1.5 mm diameter[J].IEEE Transactions on Ultrasonics, Ferroelectrics and Frequency Control, 2003, 50(4): 361-367.
[8] ZHOU Tie-ying, ZHANG Kai, CHEN Yu, et al.A cylindrical rod ultrasonic motor with 1mm diameter and its application in endoscopic OCT[J].Chinese Science Bulletin, 2005, 50(8): 826-830.
[9] CHIAO R Y, HAO X.Coded excitation for diagnostic ultrasound:A system developer′s perspective[J].IEEE Transactions on Ultrasonics, Ferroelectrics and Frequency Control, 2005, 52(2):160-170.
[10] CHEN Xiao-dong,ZHOU Hao,WEN Shi-jie.et al.Increasing average power in medical ultrasonic endoscope imaging system by coded excitation[C].SPIE,2009, 7156:71562H.
[11] ZHOU Tie-ying, ZHANG Kai, WANG Huan.Study on piezoelectric cylinder micro ultrasonic motor with 1mm diameter[J].Acta Acustica, 2004, 29(3): 258-261.
[12] YU Dao-yin, ZHOU Tie-ying, XUE Ping, et al.Micro medical-ultrasonic endoscopic OCT probe:Japan, JP203508[P], 2008.
[13] SONG Z Q, WANG Q, DU X L, et al.A high speed digital ultrasonic flaw detector based on PC and USB[C].2007 IEEE Instrumentation and Measurement Technology Conference Proceedings, 2007:1-4.
[14] CHEN Xiao-dong, WEN Shi-jie, YU Dao-yin.Revolving ultrasonic probe for medical endoscope imaging system based on USB2.0[J].Journal of Biomedical Engineering,2008, 25(5): 1048-1052.