公开(公告)号：CA3098911A1

公开(公告)日：2019-11-07

申请号：CA3098911

申请日：2019-05-02

Applicant: BUTTERFLY NETWORK INC

Inventor： FIFE KEITH G ,  LIU JIANWEI ,  YANG JUNGWOOK ,  LUTSKY JOSEPH

IPC: H04R7/02 ,  A61B8/00 ,  H04R31/00

Abstract: Micromachined ultrasonic transducers having pressure ports are described. The micromachined ultrasonic transducers may comprise flexible membranes configured to vibrate over a cavity. The cavity may be sealed, in some instances by the membrane itself. A pressure port may provide access to the cavity, and thus control of the cavity pressure. In some embodiments, an ultrasound device including an array of micromachined ultrasonic transducers is provided, with pressure ports for at least some of the ultrasonic transducers. The pressure ports may be used to control pressure across the array.

公开(公告)号：CA3064088A1

公开(公告)日：2018-12-27

申请号：CA3064088

申请日：2018-06-20

Applicant: BUTTERFLY NETWORK INC

Inventor： ALIE SUSAN A ,  FIFE KEITH G ,  LUTSKY JOSEPH ,  GROSJEAN DAVID

IPC: G01N29/22 ,  B06B1/02 ,  G01N29/24

Abstract: An ultrasonic transducer includes a membrane, a bottom electrode, and a plurality of cavities disposed between the membrane and the bottom electrode, each of the plurality of cavities corresponding to an individual transducer cell. Portions of the bottom electrode corresponding to each individual transducer cell are electrically isolated from one another. Each portion of the bottom electrode corresponds to each individual transducer that cell further includes a first bottom electrode portion and a second bottom electrode portion, the first and second bottom electrode portions electrically isolated from one another.