公开(公告)号：US09974587B2

公开(公告)日：2018-05-22

申请号：US15525916

申请日：2015-09-13

Applicant: DALIAN UNIVERSITY OF TECHNOLOGY

Inventor： Rui Wang ,  Xuyue Wang ,  Xiaoming Wang

IPC: H01L41/04 ,  A61B17/86 ,  A61B17/00 ,  A61B17/32

CPC classification number: A61B17/8665 ,  A61B17/00234 ,  A61B17/320068 ,  A61B2017/00402 ,  A61B2017/22027 ,  A61B2017/320088 ,  B06B1/0611 ,  H01L41/0835

Abstract: A PZT transducer-horn integrated ultrasonic driving structure consists of a nut, a bolt, a left PZT circular stack, a flange, a right PZT truncated stack and a horn. The horn, the right PZT truncated stack, the flange and the left PZT circular stack are arranged in sequence and connected via the bolt and then fastened via the nut; the right PZT transducer is a truncated cone-shaped stack formed by PZT circular plates; and the right PZT transducer and the horn are integrated to form the ultrasonic driving structure. Considering the dimension of PZT on two sides of the flange and the horn meet the requirements for ultrasonic vibration node and antinode, the dimension of round contour of the circular PZT stack and flange is reduced to increase the thickness of the truncated PZT stack and flange. With the integrated structure, the effect of reducing the contour dimension of the ultrasonic driving surgical device can be obtained, and the outer diameter is reduced to the range of 8-10 mm as compared with the range of 12-15 mm in the prior art, thereby further meeting the application requirements.

公开(公告)号：US11767455B2

公开(公告)日：2023-09-26

申请号：US17042462

申请日：2019-05-07

Applicant: DALIAN UNIVERSITY OF TECHNOLOGY

Inventor： Jinlong Song ,  Liu Huang ,  Xin Liu ,  Xuyue Wang ,  Yuwen Sun

IPC: C09K3/18

CPC classification number: C09K3/18

Abstract: A superhydrophobic hemispherical array which can realize droplet pancake bouncing phenomenon is provided. The superhydrophobic hemispherical array shows an arc-shape structure which is narrow at the top and wide at the bottom, where a is the angle that substrate-gas interface goes across the gas and reaches substrate-hemisphere interface, d refers to the diameter of the contact area between hemispherical structure and substrate, s represents the space between two adjoining hemispheres, h denotes the vertical height from the top of hemisphere to substrate surface, and 70°≤a≤90°, 900 μm≤d ≤1700 μm, s≤550 μm, 600 μm≤h≤1100 μm, respectively. The superhydrophobic hemispherical array has a water contact angle larger than 150° and roll-off angle lower than 10°.