SYSTEMS AND METHODS FOR LASER CATHETER TREATMENT IN A VESSEL LUMEN

    公开(公告)号:US20230210379A1

    公开(公告)日:2023-07-06

    申请号:US18009132

    申请日:2021-06-21

    CPC classification number: A61B5/0093 A61B17/3207 A61B18/24 A61B2018/00345

    Abstract: Systems and methods for laser catheter treatment in a vessel lumen. The method includes inserting the laser catheter within the vessel lumen to a location of a treatment area; presenting an image of the treatment area within the vessel lumen based on using an ultrasound (US) imaging system; and, detecting, in real-time, a bubble cloud that is a function of the laser catheter operation (at a prescribed speed and controlling a fluence and a pulse rate) in the treatment area. The method determines a vessel diameter, a real-time location and measurements of the bubble cloud, and estimates a dwell position and dwell time. A dynamic displayed image that is indicative of a progression of the laser catheter treatment is presented, and commands may be generated to modify the laser catheter parameters responsive to the estimated dwell position, the estimated dwell time, and a recommended treatment protocol.

    ULTRASOUND-BASED DEVICE LOCALIZATION

    公开(公告)号:US20220273263A1

    公开(公告)日:2022-09-01

    申请号:US17634752

    申请日:2020-08-12

    Abstract: A system for localizing a three-dimensional field of view of a beamforming ultrasound imaging probe based on a position indicator disposed within said field of view. The beamforming ultrasound imaging probe transmits and receives ultrasound signals within a three-dimensional field of view comprising a plurality of predetermined sub-volumes, each sub-volume being defined by a two dimensional array of beams. A controller causes the beamforming ultrasound imaging probe to scan the sub-volumes sequentially by transmitting and receiving ultrasound signals corresponding to each beam. A tracking system determines a position of the position indicator within the three-dimensional field of view; and determines a sub-volume in which the position indicator is located. The controller causes the beamforming ultrasound imaging probe to provide a localized field of view including the position of the position indicator by constraining the transmitting and receiving of ultrasound signals to a portion of the sub-volume in which the position indicator is located.

    RELATIVE LOCATION DETERMINING FOR PASSIVE ULTRASOUND SENSORS

    公开(公告)号:US20220225959A1

    公开(公告)日:2022-07-21

    申请号:US17614598

    申请日:2020-05-29

    Abstract: A controller (250) for identifying out-of-plane motion of a passive ultrasound sensor (S1) relative to an imaging plane front an ultrasound imaging probe includes a memory (391) licit stores instructions and a processor (392) that executes the instructions. When executed by the processor, the instructions cause a system that includes the controller (250) to implement a process that includes obtaining (S710). from a position and orientation sensor (212) fixed to the ultrasound imaging probe (210), measurements of motion of the ultrasound imaging probe (210) between a first point in time and a second point in time. The process implemented by the controller (250) also includes obtaining (S720) intensity of signals received by the passive ultrasound sensor (S1) at the first point in time and at the second point in time based on emissions of beams from the ultrasound imaging probe (210), and determining (S730), based on the measurements of motion and the intensity of signals, directionality of and distance from the passive ultrasound sensor (S1) to the imaging plane.

    3D TRACKING OF INTERVENTIONAL MEDICAL DEVICES

    公开(公告)号:US20210251697A1

    公开(公告)日:2021-08-19

    申请号:US17269855

    申请日:2019-08-13

    Abstract: A controller (210) for tracking an interventional medical device (252) in three dimensions includes a memory (212) that stores instructions, and a processor (211) that executes the instructions. When executed by the processor (211), the instructions cause the controller (210) to execute a process. The process includes determining (S320/S420), based on an elevation plane in an ultrasound X-plane mode, a first two-dimensional location of the interventional medical device (252) in the elevation plane. The process also includes determining (S320/S422), based on an azimuthal plane in the ultrasound X-plane mode, a second two-dimensional location of the interventional medical device (252) in the azimuthal plane. The process moreover includes determining (S330/S430), based on the first two-dimensional location and the second two-dimensional location, a three-dimensional location of the interventional medical device (252). Finally, the process includes modifying (S340/S440) ultrasound beam patterns fired in the ultrasound X-plane mode based on the three-dimensional location of the interventional medical device (252).

    NEEDLE WITH THIN FILM SENSORS
    15.
    发明申请

    公开(公告)号:US20210204911A1

    公开(公告)日:2021-07-08

    申请号:US17207708

    申请日:2021-03-21

    Abstract: A sensor device includes a flexible planar strip with a plurality of layers is described. The flexible planar strip is configured to at least partially encapsulate a medical device. The flexible planar strip includes a first dielectric layer, a second dielectric layer, and a patterned conductive layer including a sensor electrode disposed on the second dielectric layer. According to one aspect an ultrasound sensor including a piezoelectric polymer. The ultrasound sensor is disposed on the sensor electrode such that a first surface of the ultrasound sensor is in electrical contact with the sensor electrode and such that a second surface of the ultrasound sensor is exposed for making electrical contact with a medical device.

    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.

    ENCODED SYNCHRONIZED MEDICAL INTERVENTION IMAGE SIGNALS AND SENSOR SIGNALS

    公开(公告)号:US20220225958A1

    公开(公告)日:2022-07-21

    申请号:US17614607

    申请日:2020-05-21

    Abstract: A process implemented by a controller (120/220/320) with a circuit (121-126/221-226/321-351) includes receiving (S410) a signal stream between an ultrasound imaging probe (110/210/310) that emits multiple beams and a console (190/290/390) that receives image signals from the ultrasound imaging probe (110/210/310). The signal stream includes synchronization information indicating timing of emission of each beam, and the circuit (121-126/221-226/321-351) extracts the synchronization information. The circuit (121-126/221-226/321-351) receives (S430), from a passive ultrasound sensor (S1) that receives energy from each beam, a first signal that includes first sensor information indicative of a location of the passive ultrasound sensor (S1) and generated based on receipt by the passive ultrasound sensor (S1) of the energy received from each beam. A second signal with a predefined signature characteristic indicating the timing of emission of each beam is added (S450) to the first signal based on the synchronization information. The circuit the second signal.

    INTRAVASCULAR ULTRASOUND POSITION IDENTIFICATION

    公开(公告)号:US20210298716A1

    公开(公告)日:2021-09-30

    申请号:US17059530

    申请日:2019-06-17

    Abstract: A controller (310) for identifying positioning of an intravascular ultrasound probe (952) includes a memory (362) that stores instructions (884) and a processor (361) that executes the instructions (884). When executed by the processor (361), the instructions (884) cause the controller (310) to execute a process that includes receiving first signals from at least one element of the intravascular ultrasound probe (952). The process also includes receiving second signals from an external ultrasound probe. Based on the first signals and the second signals, the controller (310) determines a position of the intravascular ultrasound probe (952) in a tracking space that includes the intravascular ultrasound probe (952) and the external ultrasound probe.

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