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公开(公告)号：US20180296185A1
公开(公告)日：2018-10-18
申请号：US15525307
申请日：2015-02-27
Applicant: C.R. Bard, Inc.
Inventor： Jeremy B. Cox , Michael A. Randall , Peng Zheng , Dean M. Addison , Bryan A. Matthews
Abstract: An ultrasound imaging system includes an interventional medical device having a first tracking element that generates tip location data based on an EM locator field. An ultrasound probe has an ultrasound transducer mechanism and a second tracking element. The ultrasound transducer mechanism has an active ultrasound transducer array that generates two-dimensional ultrasound slice data at any of a plurality of discrete imaging locations within a three-dimensional imaging volume. The second tracking element generates probe location data based on the EM locator field. A processor circuit is configured to execute program instructions to generate an ultrasound image for display, and is configured to generate a positioning signal based on the tip location data and the probe location data to dynamically position the active ultrasound transducer array so that the two-dimensional ultrasound slice data includes the distal tip of the interventional medical device.
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公开(公告)号：US11712259B2
公开(公告)日：2023-08-01
申请号：US16348923
申请日：2017-05-02
Applicant: C.R. Bard, Inc.
Inventor： Peng Zheng , Aseem Singh , Deepa Pandia
CPC classification number: A61B17/320068 , A61B17/22012 , A61B2017/00973 , A61B2017/22014 , A61B2017/22075 , A61B2017/320069 , A61B2017/320072
Abstract: Provided herein is a catheter assembly including, in some embodiments, a core wire configured for linear actuation and a damping mechanism around the core wire. The core wire includes a proximal end with a sonic connector configured to couple to an ultrasound-producing mechanism. The core wire includes a distal end configured to modify intravascular lesions with vibrational energy from the ultrasound-producing mechanism. The damping mechanism includes a gasket system and a retainer to retain the gasket system in a damping-mechanism bore of the catheter assembly. The damping mechanism is around a proximal-end portion of the core wire, where the damping system can provide a compressive force sufficient to dampen transverse wave-producing vibrational energy in the proximal-end portion of the core wire without restricting the linear actuation of the core wire through the damping mechanism including extension and retraction of the core wire through the damping mechanism.
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公开(公告)号：US10758256B2
公开(公告)日：2020-09-01
申请号：US15388335
申请日：2016-12-22
Applicant: C.R. Bard, Inc.
Inventor： Kevin Boyle , Andrzej J. Chanduszko , Michael Randall , Peng Zheng
Abstract: A catheter includes a wave guide for transmitting ultrasonic energy from a transducer, and which is also rotated to facilitate enhanced disruption of the concerned obstruction in a transverse direction. Embodiments of waveguide include distal anchors that help focus the energy transmitted to a treatment site, and may also include a deployable filter that may open distal of the obstruction to capture any dislodged debris. Selectively inflatable balloons may cordon off a treatment site, and the wave guide may comprise a tube that may serve the dual purposes of inflating the balloon(s), as well as to transmit ultrasonic energy to an obstruction. A portion of an ultrasonic catheter may include plural curved portions to space an exposed portion of the wave guide away from the catheter body to enhance the vibratory action provided.
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公开(公告)号：US12121306B2
公开(公告)日：2024-10-22
申请号：US18316716
申请日：2023-05-12
Applicant: C.R. Bard, Inc.
Inventor： Peng Zheng
CPC classification number: A61B34/20 , A61B8/0841 , A61B8/461 , A61B8/488 , A61B17/22012 , A61B2017/00137 , A61B2017/22014 , A61B2034/2063 , A61B2034/2065 , A61B2090/378
Abstract: A vascular occlusion treatment system includes an ultrasound imaging system having an imaging control circuit communicatively coupled to an ultrasound imaging probe and to a display screen, and an ultrasonic vibration system having an ultrasonic generator operatively coupled to a medical ultrasonic object, such as an ultrasonic catheter. The ultrasonic catheter has a corewire with a distal tip. The ultrasonic generator has a generator control circuit that alternatingly switches between an ultrasonic work frequency and a tracking frequency. The generator control circuit sends a notification to the imaging control circuit when the generator control circuit has switched from the ultrasonic work frequency to the tracking frequency. The imaging control circuit responds by initiating a search in an ultrasound imaging space to locate the distal tip that is vibrating at the tracking frequency, and indicating a location of the distal tip in the ultrasound image displayed on the display screen.
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公开(公告)号：US20230277254A1
公开(公告)日：2023-09-07
申请号：US18316716
申请日：2023-05-12
Applicant: C.R. Bard, Inc.
Inventor： Peng Zheng
CPC classification number: A61B34/20 , A61B8/0841 , A61B8/461 , A61B8/488 , A61B17/22012 , A61B2034/2063 , A61B2034/2065 , A61B2090/378
Abstract: A vascular occlusion treatment system includes an ultrasound imaging system having an imaging control circuit communicatively coupled to an ultrasound imaging probe and to a display screen, and an ultrasonic vibration system having an ultrasonic generator operatively coupled to a medical ultrasonic object, such as an ultrasonic catheter. The ultrasonic catheter has a corewire with a distal tip. The ultrasonic generator has a generator control circuit that alternatingly switches between an ultrasonic work frequency and a tracking frequency. The generator control circuit sends a notification to the imaging control circuit when the generator control circuit has switched from the ultrasonic work frequency to the tracking frequency. The imaging control circuit responds by initiating a search in an ultrasound imaging space to locate the distal tip that is vibrating at the tracking frequency, and indicating a location of the distal tip in the ultrasound image displayed on the display screen.
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Patent Agency Ranking
公开(公告)号：US11596726B2
公开(公告)日：2023-03-07
申请号：US15845187
申请日：2017-12-18
Applicant: C.R. Bard, Inc.
Inventor： Peng Zheng
Abstract: An apparatus is for use in a vascular space in a body. A catheter has a lumen adapted for communicating fluid between a distal end for insertion in the vascular space and a proximal end. A transducer is adapted for removably connecting to the catheter for contacting the fluid and transmitting energy through the fluid in the lumen for dissolving an obstruction therein. A suction is provided for removing any debris from the obstruction in the lumen of the catheter. The wave guide may be tubular, and may have a length corresponding to the length of the lumen. A catheter or an implantable port including an embedded ultrasonic transducer is also provided.
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公开(公告)号：US20180279996A1
公开(公告)日：2018-10-04
申请号：US15525319
申请日：2015-11-13
Applicant: C.R. Bard, Inc.
Inventor： Jeremy B. Cox , Michael A. Randall , Peng Zheng , Samuel J. Radochonski , Dean M. Addison , Bryan A. Matthews , Jeffery L. Addison
Abstract: An apparatus and method of generating a 3D ultrasound image includes acquiring a 3D volumetric data set corresponding to a 3D imaging volume of an ultrasound probe in a 3D detection volume; acquiring a position of the ultrasound probe with respect to the 3D detection volume; acquiring a position of an interventional medical device with respect to the 3D detection volume; determining a position of the interventional medical device relative to the 3D imaging volume of the ultrasound probe; determining an interventional medical device-aligned plane that intersects with a longitudinal axis of the interventional medical device; extracting a texture slice from the 3D imaging volume for a corresponding interventional medical device-aligned plane positional and rotational orientation; mapping the texture slice onto the interventional medical device-aligned plane; and rendering the interventional medical device-aligned plane as a 3D ultrasound image and displaying the rendered 3D ultrasound image on a display screen.
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公开(公告)号：US20180177515A1
公开(公告)日：2018-06-28
申请号：US15388335
申请日：2016-12-22
Applicant: C.R. Bard, Inc.
Inventor： Kevin Boyle , Andrzej J. Chanduszko , Michael Randall , Peng Zheng
Abstract: A catheter includes a wave guide for transmitting ultrasonic energy from a transducer, and which is also rotated to facilitate enhanced disruption of the concerned obstruction in a transverse direction. Embodiments of waveguide include distal anchors that help focus the energy transmitted to a treatment site, and may also include a deployable filter that may open distal of the obstruction to capture any dislodged debris. Selectively inflatable balloons may cordon off a treatment site, and the wave guide may comprise a tube that may serve the dual purposes of inflating the balloon(s), as well as to transmit ultrasonic energy to an obstruction. A portion of an ultrasonic catheter may include plural curved portions to space an exposed portion of the wave guide away from the catheter body to enhance the vibratory action provided.
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公开(公告)号：US10905396B2
公开(公告)日：2021-02-02
申请号：US15525307
申请日：2015-02-27
Applicant: C.R. Bard, Inc.
Inventor： Jeremy B. Cox , Michael A. Randall , Peng Zheng , Dean M. Addison , Bryan A. Matthews
Abstract: An ultrasound imaging system includes an interventional medical device having a first tracking element that generates tip location data based on an EM locator field. An ultrasound probe has an ultrasound transducer mechanism and a second tracking element. The ultrasound transducer mechanism has an active ultrasound transducer array that generates two-dimensional ultrasound slice data at any of a plurality of discrete imaging locations within a three-dimensional imaging volume. The second tracking element generates probe location data based on the EM locator field. A processor circuit is configured to execute program instructions to generate an ultrasound image for display, and is configured to generate a positioning signal based on the tip location data and the probe location data to dynamically position the active ultrasound transducer array so that the two-dimensional ultrasound slice data includes the distal tip of the interventional medical device.
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公开(公告)号：US10646201B2
公开(公告)日：2020-05-12
申请号：US15525319
申请日：2015-11-13
Applicant: C.R. Bard, Inc.
Inventor： Jeremy B. Cox , Michael A. Randall , Peng Zheng , Samuel J. Radochonski , Dean M. Addison , Bryan A. Matthews , Jeffery L. Addison
Abstract: An apparatus and method of generating a 3D ultrasound image includes acquiring a 3D volumetric data set corresponding to a 3D imaging volume of an ultrasound probe in a 3D detection volume; acquiring a position of the ultrasound probe with respect to the 3D detection volume; acquiring a position of an interventional medical device with respect to the 3D detection volume; determining a position of the interventional medical device relative to the 3D imaging volume of the ultrasound probe; determining an interventional medical device-aligned plane that intersects with a longitudinal axis of the interventional medical device; extracting a texture slice from the 3D imaging volume for a corresponding interventional medical device-aligned plane positional and rotational orientation; mapping the texture slice onto the interventional medical device-aligned plane; and rendering the interventional medical device-aligned plane as a 3D ultrasound image and displaying the rendered 3D ultrasound image on a display screen.
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