公开(公告)号：US20210369352A1

公开(公告)日：2021-12-02

申请号：US17233904

申请日：2021-04-19

Applicant: HITACHI, LTD.

Inventor： Hirozumi TAKESHIMA ,  Tomohiko TANAKA ,  Ryo IMAI

IPC: A61B34/20 ,  A61B8/08 ,  A61B8/12 ,  A61B8/00 ,  G16H30/40 ,  G16H20/40

Abstract: An ultrasonic wave imaging apparatus is disclosed, including: an ultrasonic probe for irradiating a subject with an ultrasonic wave and receive a reflected wave of the ultrasonic wave and receiving an ultrasonic wave from a beacon inserted into the subject; a probe position-acquiring unit for acquiring a 3D position and an orientation of the ultrasonic probe; a beacon location-acquiring unit for determining a 3D location of the beacon from relative location and speed of the beacon relative to the ultrasonic probe as calculated from an ultrasonic wave image received at the ultrasonic probe and the 3D position and the orientation of the ultrasonic probe as acquired by the probe position-acquiring unit; and a display image formation section for using the ultrasonic wave image of the ultrasonic waves from the ultrasonic probe to form a display image. A corresponding method is also disclosed.

公开(公告)号：US20210282745A1

公开(公告)日：2021-09-16

申请号：US17197145

申请日：2021-03-10

Applicant: Hitachi, Ltd.

Inventor： Kenichi KAWABATA ,  Hideki YOSHIKAWA ,  Hirozumi TAKESHIMA

IPC: A61B8/00 ,  C08F220/56 ,  C08F222/38

Abstract: Provided is an acoustic coupler capable of achieving both low elastic modulus and high deformability required for ultrasound imaging. The acoustic coupler is disposed between a probe for transmitting ultrasound waves and a subject, the acoustic coupler comprising a hydrogel including a copolymer that contains water. The copolymer comprises a monofunctional monomer having one ethylenically unsaturated group and a polyfunctional monomer having two to six ethylenically unsaturated groups. The molar ratio of the monofunctional monomer to the polyfunctional monomer is more than 90 and less than or equal to 3500.

公开(公告)号：US20210369121A1

公开(公告)日：2021-12-02

申请号：US17215187

申请日：2021-03-29

Applicant: Hitachi, Ltd.

Inventor： Tomohiko TANAKA ,  Teiichiro IKEDA ,  Ryo IMAI ,  Hirozumi TAKESHIMA

IPC: A61B5/00 ,  B06B1/06 ,  A61B90/00 ,  A61B90/50 ,  A61N7/00

Abstract: Provided are an ultrasound imaging apparatus and a surgical operation support system for obtaining position information of a device outside an imaging area and presenting the position information to a user together with an ultrasound image. The surgical operation support system includes the ultrasound imaging apparatus, an ultrasonic source fixed to a therapeutic tool to be inserted into a subject body, a display device for displaying the ultrasound image and the position of the ultrasonic source. The ultrasound imaging apparatus is provided with a position estimator for estimating the position information of the ultrasonic source, and the position estimator analyzes a grating lobe artifact (false image) that is generated by the ultrasonic wave emitted from the ultrasonic source outside the imaging area, to estimate the position information of the ultrasonic source with respect to the imaging area.