ATHERECTOMY GUIDANCE THROUGH PHOTOACOUSTIC SIGNAL ANALYSIS

    公开(公告)号:US20230225793A1

    公开(公告)日:2023-07-20

    申请号:US18009127

    申请日:2021-06-15

    CPC classification number: A61B18/24 A61B2018/00577

    Abstract: Methods, Apparatuses, and Systems of operating a laser atherectomy system to perform an endoscopic atherectomy procedure within a vessel at a therapeutic region of an anatomical condition by use of an atherectomy laser device coupled to an ultrasound imaging probe. The atherectomy laser device operates to generate photoacoustic signals from a light source of the atherectomy laser device to for guidance within the vessel and to characterize tissue about the therapeutic region by delivery of pulsed wavelengths within the vessel, and to perform operations of tissue ablation directed to the anatomical condition. This enables guidance of the atherectomy laser device by feedback from the viewing of photoacoustic images based on photoacoustic signals generated the atherectomy laser device and created in response to changes in acoustic intensity due to changes of optical wavelength monitored by the ultrasound imaging probe.

    LARGE AREA ULTRASOUND TRANSDUCER ASSEMBLY
    3.
    发明申请

    公开(公告)号:US20190380679A1

    公开(公告)日:2019-12-19

    申请号:US16479303

    申请日:2018-01-11

    Abstract: An ultrasound imaging system according to the present disclosure may include an ultrasound transducer assembly comprising a plurality of apertures that are configured to transmit signals toward and receive signals from a region of interest (ROI) of a subject, a tracking sensor disposed within the subject and configured to move within the ROI, the sensor being responsive to signals transmitted by the apertures, and at least one processor in communication with the ultrasound transducer assembly and the tracking sensor. The at least one processor may be configured to generate a first image of a first portion of the ROI from signals received from at least one activated aperture, identify a position of the tracking sensor using signal data from the tracking sensor that corresponds to at least one signal transmitted by the apertures, and generate a second image of a second portion of the ROI from signals received from at least one other aperture activated based on the identified position, wherein the second portion of the ROI is different from the first portion of the ROI.

    SYSTEM, DEVICE AND METHOD FOR CONSTRAINING SENSOR TRACKING ESTIMATES IN INTERVENTIONAL ACOUSTIC IMAGING

    公开(公告)号:US20210251602A1

    公开(公告)日:2021-08-19

    申请号:US17269790

    申请日:2019-08-13

    Abstract: An acoustic imaging apparatus and method: produce acoustic images of an area of interest in response to one or more receive signals received from an acoustic probe in response to acoustic echoes received by the acoustic probe from the area of interest; 5 identify one or more candidate locations for a passive sensor disposed on a surface of an intervention device in the area of interest based on magnitudes of the acoustic echoes received by the acoustic probe from the candidate locations in the area of interest; use intra-procedural context-specific information to identify a one of the candidate locations which best matches the intra-procedural context-specific information as the estimated 10 location of the passive sensor; displaying the acoustic images on a display device; and display on the display device a marker in the acoustic images to indicate the estimated location of the passive sensor.

    DIFFERENTIATING PASSIVE ULTRASOUND SENSORS FOR INTERVENTIONAL MEDICAL PROCEDURES

    公开(公告)号:US20220240901A1

    公开(公告)日:2022-08-04

    申请号:US17617644

    申请日:2020-06-12

    Abstract: A controller (250) for differentiating passive ultrasound sensors for interventional medical procedures includes a memory (291) and a processor (292). When executed by the processor (292), instructions from the memory (291) cause a system (200) that includes the controller (250) to implement a process that includes receiving first signals from a first passive ultrasound sensor (S1) and receiving second signals from a second passive ultrasound sensor (S2). The first signals and second signals are generated by the passive ultrasound sensors responsive to beams emitted from an ultrasound imaging probe (210). The process also includes identifying a characteristic of the first signals and the second signals. The characteristic includes shapes of the first signals and the second signals and/or times at which the first signals and the second signals are generated as the beams from the ultrasound imaging probe are received. The first passive ultrasound sensor (S1) and the second passive ultrasound sensor (S2) are differentiated based on the characteristic.

Patent Agency Ranking