Synchronized tracking of multiple interventional medical devices

    公开(公告)号:US11497563B2

    公开(公告)日:2022-11-15

    申请号:US17059811

    申请日:2019-06-06

    IPC分类号: A61B34/20 A61B8/08 A61B8/00

    摘要: A controller (240/340) for simultaneously tracking multiple interventional medical devices includes a memory (242/342) that stores instructions and a processor (241/341) that executes the instructions. When executed by the processor (241/341), the instructions cause the controller to execute a process that includes receiving timing information from a first signal emitted from an ultrasound probe (252/352) and reflective of timing when the ultrasound probe (252/352) transmits ultrasound beams to generate ultrasound imagery. The process executed by the controller also includes forwarding the timing information to be available for use by a first acquisition electronic component (232/332). The first acquisition electronic component (232/332) also receives sensor information from a first passive ultrasound sensor (S1) on a first interventional medical device (212/312). The timing information is used to synchronize the sensor information from the first passive ultrasound sensor (S1) on the first interventional medical device (212/312) with sensor information from a second passive ultrasound sensor (S2) on a second interventional medical device (216/316).

    Ultrasound transducer tile registration

    公开(公告)号:US11457897B2

    公开(公告)日:2022-10-04

    申请号:US16334869

    申请日:2017-09-20

    摘要: An ultrasound imaging system (1) comprises an ultrasound transducer array (100) comprising a plurality of ultrasound transducer tiles (101a-d), each of said tiles having an independently adjustable orientation such as to conform an ultrasound transmitting surface to a region of a body (50) including a foreign object such as a pacemaker, a stent, or an interventional tool (200). Using a known spatial arrangement of a plurality of features (201-204) of the foreign object (200), the respective ultrasound images generated by the ultrasound transducer tiles are registered in order to generate a composite image, in which the position and orientation of the foreign object in the individual images is superimposed. The position and orientation of an interventional tool may be determined for each image using object recognition algorithms or using acoustic feedback information provided by at least three ultrasound sensors (201-204) arranged in a known spatial arrangement on the interventional tool.

    System and method for probe calibration and interventional acoustic imaging

    公开(公告)号:US11331070B2

    公开(公告)日:2022-05-17

    申请号:US16066082

    申请日:2016-12-21

    摘要: A system includes an acoustic probe and an acoustic imaging machine. The acoustic probe includes a substrate with first and second principal surfaces, a device insertion port with an opening passing through the substrate from the first principal surface to the second principal surface, and an array of acoustic transducer elements supported by the substrate and disposed around the device insertion port. The acoustic imaging machine may systematically vary the size and/or position of the active acoustic aperture of the probe by providing transmit signals to selected acoustic transducer elements to cause the array to transmit an acoustic probe signal to an area of interest and may record a feedback signal of the transmit signals from an acoustic receiver provided at a distal end of an interventional device passed through the device insertion port into the area of interest to find an active acoustic aperture having optimal acoustic performance.

    Rapid synthetic focus ultrasonic imaging with large linear arrays

    公开(公告)号:US11199625B2

    公开(公告)日:2021-12-14

    申请号:US16309601

    申请日:2017-06-12

    IPC分类号: G01S15/89 G01S7/52

    摘要: An ultrasonic diagnostic imaging system and method translates an aperture across an array transducer which is less that the size of the array. At each aperture location a transmit beam is focused above, or alternatively below, the array and a region of interest being scanned from the aperture location, resulting in broad insonification of the region of interest. At the lateral ends of the array the aperture is no longer translated but the focal point of the transmit beam is translated from the same aperture position, preferably with tilting of the beam direction. Multiple receive beams are processed in response to each transmit event and the overlapping receive beams and echo locations are spatially combined to produce synthetic transmit focusing over the center of the image field and noise reduction by spatial compounding at the lateral ends of the image field.

    SURFACE COMPLIANT ULTRASOUND TRANSDUCER ARRAY

    公开(公告)号:US20190159761A1

    公开(公告)日:2019-05-30

    申请号:US16321562

    申请日:2017-07-21

    摘要: An ultrasound transducer array (100) is disclosed comprising an array of elongate support members (110) displaceable and/or deformable relative to each other in the elongation direction of said elongate support members, each elongate support member having a patient facing surface carrying an ultrasound transducer tile (120); and a plurality of sensors (115), each adapted to detect the relative displacement and/or deformation of one of said elongate support members. An ultrasound system (10) including such an ultrasound transducer array and an operating method (200) of such an ultrasound system are also disclosed.