公开(公告)号：US11998950B2

公开(公告)日：2024-06-04

申请号：US17018304

申请日：2020-09-11

申请人： eXo Imaging, Inc.

发明人： Brian Bircumshaw ,  Sandeep Akkaraju ,  Haesung Kwon

IPC分类号： B06B1/06 ,  H10N30/50 ,  H10N30/87 ,  H10N30/00

CPC分类号： B06B1/0651 ,  B06B1/0662 ,  B06B1/0666 ,  H10N30/50 ,  H10N30/871 ,  H10N30/10516 ,  H10N30/877

摘要： Methods for improving the electromechanical coupling coefficient and bandwidth of micromachined ultrasonic transducers, or MUTs, are presented as well as methods of manufacture of the MUTs improved by the presented methods.

公开(公告)号：US11199623B2

公开(公告)日：2021-12-14

申请号：US17153631

申请日：2021-01-20

申请人： EXO IMAGING, INC.

发明人： Yusuf Haque ,  Sandeep Akkaraju ,  Janusz Bryzek ,  Brian Bircumshaw

IPC分类号： G01S15/89 ,  A61B8/00 ,  G01N29/24 ,  H01L41/09 ,  G01S7/52 ,  B06B1/06 ,  B81B3/00 ,  G01N29/26 ,  G01N29/34 ,  G10K11/34 ,  A61B8/08 ,  G01N29/02 ,  G01N29/06 ,  G01N29/04

摘要： An imaging device includes a transducer that includes an array of piezoelectric elements formed on a substrate. Each piezoelectric element includes at least one membrane suspended from the substrate, at least one bottom electrode disposed on the membrane, at least one piezoelectric layer disposed on the bottom electrode, and at least one top electrode disposed on the at least one piezoelectric layer. Adjacent piezoelectric elements are configured to be isolated acoustically from each other. The device is utilized to measure flow or flow along with imaging anatomy.

公开(公告)号：US10648852B2

公开(公告)日：2020-05-12

申请号：US15951121

申请日：2018-04-11

申请人： EXO IMAGING INC.

发明人： Sandeep Akkaraju ,  Haesung Kwon ,  Brian Bircumshaw

IPC分类号： G01N29/00 ,  H01L41/00 ,  G01H11/08 ,  G01S15/02 ,  G01N29/07 ,  H01G5/00 ,  H01L41/113 ,  H01L41/18 ,  B81B3/00

摘要： A micromachined ultrasonic transducer (MUT). The MUT includes: a substrate; a membrane suspending from the substrate; a bottom electrode disposed on the membrane; a piezoelectric layer disposed on the bottom electrode and an asymmetric top electrode is disposed on the piezoelectric layer. The areal density distribution of the asymmetric electrode along an axis has a plurality of local maxima, wherein locations of the plurality of local maxima coincide with locations where a plurality of anti-nodal points at a vibrational resonance frequency is located.

公开(公告)号：US11975360B2

公开(公告)日：2024-05-07

申请号：US17936585

申请日：2022-09-29

申请人： Exo Imaging, Inc.

发明人： Haesung Kwon ,  Brian Bircumshaw ,  Sandeep Akkaraju

IPC分类号： B06B1/06 ,  G01H11/08 ,  G01N29/24 ,  B06B1/02 ,  H10N30/20

CPC分类号： B06B1/0622 ,  G01H11/08 ,  G01N29/2406 ,  B06B1/0292 ,  H10N30/2047

摘要： Described are micromachined ultrasonic transducers (MUTs) with convex or concave electrodes, which have enhanced pressure amplitude and frequency response behavior when driven at fundamental and harmonic frequencies, as well as methods of making the same.

公开(公告)号：US20240074733A1

公开(公告)日：2024-03-07

申请号：US17901461

申请日：2022-09-01

申请人： Exo Imaging, Inc.

发明人： Tanya L. Frane ,  Sandeep Akkaraju ,  Brian Bircumshaw ,  Janusz Bryzek ,  Arun Nagdev

IPC分类号： A61B8/00

CPC分类号： A61B8/467 ,  A61B8/4254

摘要： An apparatus, a method, and computer-implemented media. The apparatus is to receive information based on haptic input to a surface of a housing of an ultrasound imaging device; and based on the information, execute an ultrasound exam function corresponding to the haptic input, the ultrasound exam function to control an ultrasound image on a display of a computing system.

公开(公告)号：US11712222B2

公开(公告)日：2023-08-01

申请号：US17067139

申请日：2020-10-09

申请人： eXo Imaging, Inc.

发明人： Yusuf Haque ,  Sandeep Akkaraju ,  Janusz Bryzek ,  Brian Bircumshaw

IPC分类号： B06B1/06 ,  H10N30/00 ,  A61B8/00 ,  G01S7/52 ,  H10N30/88 ,  H10N30/20 ,  A61B8/08 ,  A61B8/14 ,  B06B1/02 ,  G01S7/521 ,  G01S15/89

CPC分类号： A61B8/4494 ,  A61B8/0883 ,  A61B8/145 ,  A61B8/4483 ,  A61B8/4488 ,  A61B8/461 ,  A61B8/488 ,  A61B8/5207 ,  A61B8/546 ,  B06B1/0215 ,  B06B1/0238 ,  B06B1/0629 ,  B06B1/0662 ,  B06B1/0692 ,  G01S7/521 ,  G01S7/52046 ,  G01S7/52079 ,  G01S15/8925 ,  H10N30/1051 ,  H10N30/2047 ,  H10N30/2048 ,  H10N30/88 ,  A61B8/4427 ,  A61B8/4472 ,  B06B2201/76

摘要： An imaging device includes a two dimensional array of piezoelectric elements. Each piezoelectric element includes: a piezoelectric layer; a bottom electrode disposed on a bottom side of the piezoelectric layer and configured to receive a transmit signal during a transmit mode and develop an electrical charge during a receive mode; and a first top electrode disposed on a top side of the piezoelectric layer; and a first conductor, wherein the first top electrodes of a portion of the piezoelectric elements in a first column of the two dimensional array are electrically coupled to the first conductor.

公开(公告)号：US20220314275A1

公开(公告)日：2022-10-06

申请号：US17218656

申请日：2021-03-31

申请人： eXo Imaging, Inc.

发明人： Haesung Kwon ,  Brian Bircumshaw ,  Sandeep Akkaraju

IPC分类号： B06B1/02 ,  B81B3/00 ,  G01H11/08 ,  G01N29/24

摘要： Described are micromachined ultrasonic transducers (MUTs) with convex or concave electrodes, which have enhanced pressure amplitude and frequency response behavior when driven at fundamental and harmonic frequencies, as well as methods of making the same.

公开(公告)号：US20210278530A1

公开(公告)日：2021-09-09

申请号：US17153631

申请日：2021-01-20

申请人： EXO IMAGING, INC.

发明人： Yusuf Haque ,  Sandeep Akkaraju ,  Janusz Bryzek ,  Brian Bircumshaw

IPC分类号： G01S15/89 ,  G01N29/24 ,  A61B8/00

摘要： An imaging device includes a transducer that includes an array of piezoelectric elements formed on a substrate. Each piezoelectric element includes at least one membrane suspended from the substrate, at least one bottom electrode disposed on the membrane, at least one piezoelectric layer disposed on the bottom electrode, and at least one top electrode disposed on the at least one piezoelectric layer. Adjacent piezoelectric elements are configured to be isolated acoustically from each other. The device is utilized to measure flow or flow along with imaging anatomy.

公开(公告)号：US12000728B2

公开(公告)日：2024-06-04

申请号：US17395171

申请日：2021-08-05

申请人： Exo Imaging, Inc.

发明人： Sandeep Akkaraju ,  Haesung Kwon ,  Brian Bircumshaw

IPC分类号： G01H11/08 ,  B81B3/00 ,  G01N29/07 ,  G01S15/02 ,  H01L41/113 ,  H01L41/18 ,  H10N30/30 ,  H10N30/85

CPC分类号： G01H11/08 ,  G01N29/07 ,  G01S15/02 ,  H10N30/302 ,  H10N30/852 ,  B81B3/0021

摘要： An array of micromachined ultrasonic transducers (MUTs). The array has first and second rows, the MUTs in the first row being equally spaced by a horizontal pitch in a horizontal direction, the MUTs in the second row being equally spaced by the horizontal pitch in the horizontal direction. The MUTs in the second row are shifted along the horizontal direction by a first horizontal distance relative to the MUTs in the first row and shifted along a vertical direction by a first vertical distance relative to the MUTs in the first row. The first horizontal distance is greater than zero and less than the horizontal pitch. The first vertical distance ranges from one tenth of a horizontal width of a MUT to a half of a vertical height of a MUT.

公开(公告)号：US20240151838A1

公开(公告)日：2024-05-09

申请号：US18549051

申请日：2021-03-31

申请人： Exo Imaging, Inc.

发明人： Anthony E. Brock ,  Brian Bircumshaw ,  Jonathan R. Strode

IPC分类号： G01S7/52 ,  G01S15/89

CPC分类号： G01S7/5208 ,  G01S7/52046 ,  G01S15/8918 ,  G01S15/8993

摘要： An apparatus, a method, and computer-implemented media. The apparatus is to determine a current pixel performance dataset for one or more pixels within a transducer array of pixels located adjoining a first medium with a first acoustic impedance Z1, the transducer array within an imaging device, the current pixel performance dataset obtained from a current pixel performance receive cycle of the one or more pixels against a second medium with a second acoustic impedance Z2 larger than Z1; perform a comparison of the current pixel performance dataset with a baseline pixel performance dataset for the one or more pixels, the baseline pixel performance dataset obtained from a baseline pixel performance receive cycle of the one or more pixels against the second medium, wherein implementation of the current pixel performance receive cycle and of the baseline pixel performance receive cycle is performed without alignment of the second medium with respect to the imaging device; and determine a defective pixel dataset for one or more defective pixels of the one or more pixels based on the comparison.