公开(公告)号：US12085643B2

公开(公告)日：2024-09-10

申请号：US17209644

申请日：2021-03-23

Applicant: CANON MEDICAL SYSTEMS CORPORATION

Inventor： Nobuyuki Iwama

IPC: G01S15/89 ,  A61B8/00 ,  G01S7/52 ,  B06B1/02

CPC classification number: G01S15/89 ,  A61B8/42 ,  A61B8/4444 ,  G01S7/52001 ,  G01S7/5202 ,  G01S7/5208 ,  B06B1/0207 ,  G01S7/52017 ,  G01S15/8906

Abstract: A transmission circuit according to an embodiment includes: a plurality of constant current circuits, a plurality of switching elements, and controlling circuitry. The plurality of constant current circuits are connected in parallel to a power source line connected to a single power source and a transducer element. Each of the plurality of switching elements is connected to a different one of the plurality of constant current circuits and to the transducer element. The controlling circuitry is configured to control the plurality of switching elements on the basis of a waveform signal indicating a waveform of an ultrasound wave output from the transducer element.

公开(公告)号：US11914034B2

公开(公告)日：2024-02-27

申请号：US16948261

申请日：2020-09-10

Applicant: Quing Zhu ,  Shiqi Xu

Inventor： Quing Zhu ,  Shiqi Xu

IPC: G01S7/52 ,  A61B8/08 ,  G01S15/89 ,  G06T11/00

CPC classification number: G01S15/8906 ,  G01S7/52017 ,  G06T11/003 ,  A61B8/52 ,  G06T2207/10132

Abstract: A diffuse optical tomography (DOT) system for generating a functional image of a lesion region of a subject is described. The DOT system includes a source subsystem configured to generate optical waves, a probe coupled to the source subsystem and configured to emit the optical waves generated by the source subsystem toward the lesion region and to detect optical waves reflected by the lesion region, a detection subsystem configured to convert the optical waves detected by the probe to digital signals, and a computing device including a processor and a memory. The memory includes instructions that program the processor to receive the digital signals sent from the detection subsystem and perform reconstruction using a depth-regularized reconstruction algorithm combined with a semi-automated interactive convolutional neural network (CNN) for depth-dependent reconstruction of absorption distribution.

公开(公告)号：US20190201933A1

公开(公告)日：2019-07-04

申请号：US16327538

申请日：2017-08-03

Applicant: GENERAL ELECTRIC COMPANY

Inventor： Jianlin Li ,  Jing Li ,  Weihua Shang ,  Baoming Huang ,  Heng Wu

IPC: B06B1/02 ,  G01S7/52 ,  G01S7/524 ,  G01S7/526

CPC classification number: B06B1/0215 ,  G01S7/52017 ,  G01S7/5202 ,  G01S7/52025 ,  G01S7/523 ,  G01S7/524 ,  G01S7/526

Abstract: The present invention discloses a transmitting and receiving device for an ultrasonic system, which comprises a transmitter, a receiver and at least two switch circuits connected in series. The transmitter is coupled to an ultrasonic transducer and generates high voltage signals to the ultrasonic transducer during a transmitting mode. The receiver is coupled to the ultrasonic transducer via the at least two switch circuits and receives low voltage signals from the ultrasonic transducer during a receiving mode. The at least two switch circuits are configured to share voltage drop of the high voltage signals to isolate the high voltage signals during the transmitting mode and allow the low voltage signals to pass through during the receiving mode. It also discloses an ultrasonic system having the transmitting and receiving device.

公开(公告)号：US10054676B2

公开(公告)日：2018-08-21

申请号：US14398367

申请日：2013-03-13

Applicant: LOS ALAMOS NATIONAL SECURITY, LLC

Inventor： Dipen N. Sinha ,  John F. Brady

IPC: G03B42/06 ,  G01S7/52 ,  G01N29/22 ,  G01N29/06 ,  G01N29/07 ,  G01S15/89 ,  G01S15/02

CPC classification number: G01S7/52017 ,  G01N29/0654 ,  G01N29/07 ,  G01N29/221 ,  G01N2291/106 ,  G01S15/02 ,  G01S15/8913 ,  G01S15/8925 ,  G01S15/8993

Abstract: Apparatus for generating accurate 3-dimensional images of objects immersed in liquids including optically opaque liquids which may also have significant sound attenuation, is described. Sound pulses are caused to impinge on the object, and the time-of-flight of the reflected sound is used to create a 3-dimensional image of the object in almost real-time. The apparatus is capable of creating images of objects immersed in fluids that are optically opaque and have high sound attenuation at resolutions less than about 1 mm. The apparatus may include a piezoelectric transducer for generating the acoustic pulses; a high-density polyethylene compound acoustic lens, a 2-dimensional segmented piezoelectric detecting array positioned behind the lens for receiving acoustic pulses reflected by the object, the electric output of which is directed to digital signal processing electronics for generating the image.

公开(公告)号：US20170360408A1

公开(公告)日：2017-12-21

申请号：US15615126

申请日：2017-06-06

Applicant: Konica Minolta, Inc.

Inventor： Bumpei TOJI

IPC: A61B8/08 ,  G01S15/89 ,  G01S7/52 ,  A61B8/00 ,  G06T7/00

CPC classification number: A61B8/485 ,  A61B8/085 ,  A61B8/469 ,  A61B8/5207 ,  G01S7/52017 ,  G01S7/52022 ,  G01S7/52042 ,  G01S7/52071 ,  G01S7/52077 ,  G01S15/8906 ,  G06T7/0012

Abstract: An ultrasound diagnostic device includes a propagation information estimator that evaluates reliability of wavefront arrival time data in the wavefront arrival time frame data and, for reliability nonconformance wavefront arrival time data in the wavefront arrival time frame data that does not satisfy a predefined condition, generates compensated wavefront arrival time data by interpolation based on wavefront arrival time data that does satisfy the predefined condition, replaces the reliability nonconformance wavefront arrival time data with the compensated wavefront arrival time data, and generates compensated wavefront arrival time frame data; and an elastic modulus calculator that calculates shear wave propagation speed and/or elastic modulus frame data in the region of interest, based on the compensated wavefront arrival time frame data.

公开(公告)号：US20170285155A1

公开(公告)日：2017-10-05

申请号：US15087914

申请日：2016-03-31

Applicant: Butterfly Network, Inc.

Inventor： Kailiang Chen ,  Tyler S. Ralston ,  Keith G. Fife

IPC: G01S7/52 ,  G01S7/521 ,  G01S15/89

CPC classification number: G01S7/52022 ,  A61B7/04 ,  G01S7/52017 ,  G01S7/5202 ,  G01S7/52047 ,  G01S7/5208 ,  G01S7/521 ,  G01S15/8915 ,  G01S15/8977

Abstract: Circuitry for ultrasound devices is described. A multilevel pulser is described, which can provide bipolar pulses of multiple levels. The multilevel pulser includes a pulsing circuit and pulser and feedback circuit. Symmetric switches are also described. The symmetric switches can be positioned as inputs to ultrasound receiving circuitry to block signals from the receiving circuitry.

公开(公告)号：US20170285150A1

公开(公告)日：2017-10-05

申请号：US15087943

申请日：2016-03-31

Applicant: Butterfly Network, Inc.

Inventor： Kailiang Chen ,  Tyler S. Ralston ,  Keith G. Fife

IPC: G01S7/521 ,  H03K17/687

CPC classification number: G01S7/521 ,  G01S7/52017 ,  G01S7/5202 ,  G01S7/52047 ,  G01S7/5208 ,  G01S15/8915 ,  H03K17/6874

Abstract: Circuitry for ultrasound devices is described. A multilevel pulser is described, which can provide bipolar pulses of multiple levels. The multilevel pulser includes a pulsing circuit and pulser and feedback circuit. Symmetric switches are also described. The symmetric switches can be positioned as inputs to ultrasound receiving circuitry to block signals from the receiving circuitry.

公开(公告)号：US09664782B2

公开(公告)日：2017-05-30

申请号：US14114308

申请日：2012-04-26

Applicant: Haruo Yoda

Inventor： Haruo Yoda

IPC: G01S7/52

CPC classification number: G01S7/52017 ,  G01S7/52047

Abstract: The present invention employs an object information acquiring apparatus comprising a plurality of receiving elements which receive acoustic waves emitted from an object and convert the acoustic waves into received signals, a delay unit which matches phases of the received signals, a complex converter which converts the received signals into complex signals, a complex covariance matrix calculator which periodically obtains a complex covariance matrix by using a complex signal group configured from a plurality of phase-matched complex signals, an eliminator which eliminates the number of bits of input data configured from at least either the complex signal group or matrix elements, and an electric power calculator which calculates a power of target positions, wherein the eliminator eliminates the number of bits by performing common level conversion processing on all input data relating to one complex covariance matrix.

公开(公告)号：US09480459B2

公开(公告)日：2016-11-01

申请号：US14147124

申请日：2014-01-03

Applicant: INNURVATION, INC.

Inventor： Michael Arneson ,  William Bandy ,  Wayne Shanks

IPC: A61B8/14 ,  A61B8/12 ,  A61B8/00 ,  G01S7/00 ,  G01S7/52 ,  G01S15/89

CPC classification number: A61B8/12 ,  A61B8/4472 ,  A61B8/4488 ,  G01S7/003 ,  G01S7/52017 ,  G01S7/52065 ,  G01S15/8915 ,  G01S15/8993

Abstract: The present invention relates to ultrasound imaging on a capsule endoscope platform. It relates to the generation of a focused ultrasound acoustic signal and the receiving of echo signals from the wall of a body lumen with an array of acoustic transducers wrapped around the circumference of the capsule. It relates to sending the generated echo image signals to receiver devices attached or worn on the body. It relates to the generation of 360° overlapping sidewall ultrasound scans of a body lumen, and image processing techniques to assemble these scans into a high resolution continuous ultrasound image. Finally, it relates to the manufacture and assembly of such an ultrasound scanning capsule endoscope (USCE). The concept is extendable to conventional endoscopes and catheters.

Abstract translation: 本发明涉及胶囊型内窥镜平台上的超声波成像。 它涉及聚焦超声声信号的产生和从体腔的壁接收回声信号，其中包括围绕胶囊周围的声传感器阵列。 它涉及将生成的回波图像信号发送到附接或佩戴在身体上的接收器装置。 它涉及生成体腔360度重叠的侧壁超声扫描，以及将这些扫描组装成高分辨率连续超声图像的图像处理技术。 最后涉及这种超声波扫描胶囊型内窥镜（USCE）的制造和组装。 该概念可扩展到常规内窥镜和导管。

公开(公告)号：US09476969B2

公开(公告)日：2016-10-25

申请号：US14940837

申请日：2015-11-13

Applicant: Butterfly Network, Inc.

Inventor： Jonathan M. Rothberg ,  Tyler S. Ralston ,  Nevada J. Sanchez ,  Andrew J. Casper

IPC: G01S7/00 ,  G01S7/52 ,  H03K5/13 ,  G10K11/34 ,  H03K5/00 ,  B06B1/06

CPC classification number: G01S7/52019 ,  B06B1/0292 ,  B06B1/0607 ,  G01S7/52017 ,  G01S7/5202 ,  G10K11/346 ,  H03K5/13 ,  H03K2005/00019

Abstract: Aspects of the technology described herein relate to ultrasound device circuitry as may form part of a single substrate ultrasound device having integrated ultrasonic transducers. The ultrasound device circuitry may facilitate the generation of ultrasound waveforms in a manner that is power- and data-efficient.