公开(公告)号：WO2017091633A1

公开(公告)日：2017-06-01

申请号：PCT/US2016/063433

申请日：2016-11-22

Applicant: FUJIFILM SONOSITE, INC.

Inventor： CHAGGARES, Nicholas, Christopher ,  HIRSON, Desmond ,  IVANYTSKYY, Oleg ,  PANG, Guofeng ,  KALAJA, Robert

IPC: A61B8/00

CPC classification number: A61B8/12 ,  A61B8/0891 ,  A61B8/445 ,  A61B8/4488 ,  A61B8/4494 ,  B06B1/0622

Abstract: Disclosed is a medical device that includes a phased array ultrasound transducer. The transducer includes a number of transducer elements that are electrically coupled to corresponding electrical conductors. In one embodiment, the conductors are included in a flex circuit and engage corresponding transducer elements though a conductive surface formed on outwardly extending ribs of a frame that holds the ultrasound array. In one embodiment, the phased array is forward facing in the medical device and has an element pitch of 0.75 lambda or less and more preferably 0.6 lambda or less. In one embodiment, the transducer is rotatable over an angle of +/- 90 degrees to provide a 360 degree view of tissue surrounding the distal end of the device.

Abstract translation: 公开了一种包括相控阵超声换能器的医疗装置。 换能器包括电耦合到相应的电导体的多个换能器元件。 在一个实施例中，导体被包括在柔性电路中并且通过在保持超声阵列的框架的向外延伸的肋上形成的导电表面接合对应的换能器元件。 在一个实施例中，相控阵列在医疗装置中面向前方并且具有0.75λ或更小，更优选0.6λ或更小的元件间距。 在一个实施例中，换能器可以在+/- 90度的角度上旋转，以提供围绕装置的远端周围的组织的360度视图。

公开(公告)号：WO2014190330A1

公开(公告)日：2014-11-27

申请号：PCT/US2014/039455

申请日：2014-05-23

Applicant: FUJIFILM SONOSITE, INC.

Inventor： HIRSON, Desmond ,  CHAGGARES, Nicholas, Christopher ,  MEHI, James ,  GUREVICH, Danny

IPC: A61B8/14

CPC classification number: G01S15/8965 ,  A61B5/0059 ,  A61B5/0095

Abstract: A photoacoustic ultrasound transducer receives excitation light on a bundle of optical fibers. The optical fibers in the bundle are divided to direct the excitation light onto light bars positioned on either side of an imaging stack. A small portion of the optical fibers direct a portion of the excitation light onto an optical sensor that is located within the transducer housing.

Abstract translation: 光声超声波传感器在一束光纤上接收激发光。 束中的光纤被分割以将激发光引导到位于成像叠层的任一侧的光棒上。 光纤的一小部分将一部分激发光引导到位于换能器壳体内的光学传感器上。

公开(公告)号：WO2019046337A1

公开(公告)日：2019-03-07

申请号：PCT/US2018/048401

申请日：2018-08-28

Applicant: FUJIFILM SONOSITE, INC. ,  SUNNYBROOK RESEARCH INSTITUTE

Inventor： FOSTER, F. Stuart ,  HIRSON, Desmond ,  CHAGGARES, Nicholas Christopher ,  CHERIN, Emmanuel W. ,  YIN, Jianhua ,  YANG, Jing ,  DEMORE, Christine

IPC: A61B8/08 ,  A61B8/00

Abstract: A dual frequency transducer array includes one or more low frequency transducer arrays and a high frequency transducer array. Unfocused ultrasound such as plane waves are transmitted by the one or more low frequency transducer arrays in a number of different directions into an imaging region of the high frequency transducer array. High frequency echo signals produced by excited contrast agent in the imaging region are received by the high frequency transducer array to produce a contrast agent image. In another embodiment, the high frequency transducer produces unfocused ultrasound to excite the contrast agent in the imaging region and the low frequency transducer(s) receives low frequency echo signals from the excited contrast agent. A tissue image is created from echo signals received by the high or low frequency transducer. Echo data from the tissue image and the contrast agent image are combined to produce a combined tissue/contrast agent image

公开(公告)号：WO2017173414A1

公开(公告)日：2017-10-05

申请号：PCT/US2017/025620

申请日：2017-03-31

Applicant: FUJIFILM SONOSITE, INC.

Inventor： CHAGGARES, Nicholas, Christopher ,  PANG, Quofeng ,  HIRSON, Desmond

IPC: A61B8/00

Abstract: A dual frequency ultrasound transducer includes a high frequency ultrasound array and a low frequency transducer positioned behind or proximal to the high frequency ultrasound array. In one embodiment, a dampening material is positioned between a rear surface of the high frequency array and the a front surface of the low frequency array. The dampening preferably is high absorbing of signals at the frequency of the high frequency array but passes signals at the frequency of the low frequency transducer with little attenuation. In additional, or alternatively, the low frequency can angled with respect to the plane of the high frequency transducer to reduce inter-stack multipath reflections. Beamforming delays compensate for the differences in physical distances between the elements of the low frequency transducer and the plane of the high frequency transducer.

Abstract translation: 双频超声换能器包括高频超声阵列和位于高频超声阵列后面或近端的低频换能器。 在一个实施例中，缓冲材料位于高频阵列的后表面和低频阵列的前表面之间。 衰减优选地是在高频阵列的频率下高度吸收信号，但是以低衰减的低频率变换器的频率传递信号。 另外或可选地，低频可相对于高频换能器的平面成角度以减少堆叠间多路径反射。 波束成形延迟补偿了低频换能器的元件和高频换能器的平面之间的物理距离的差异。