公开(公告)号：US11707254B2

公开(公告)日：2023-07-25

申请号：US16662847

申请日：2019-10-24

Applicant: VOLCANO CORPORATION

Inventor： Alessandra Di Tullio ,  Robin Lucia ,  Anuja Nair ,  Nikhil Sreedhar Rajguru ,  Yvonne Gillis

IPC: A61B8/08 ,  A61B8/12 ,  A61B8/00

CPC classification number: A61B8/0891 ,  A61B8/085 ,  A61B8/12 ,  A61B8/463

Abstract: Disclosed is an intraluminal ultrasound imaging system, including a processor circuit in communication with an intraluminal ultrasound imaging catheter, and configured to receive a plurality of intraluminal ultrasound images obtained by the imaging catheter while the imaging catheter is moved through a body lumen of a patient. The processor circuit is further configured to determine a longitudinal translation speed of the imaging catheter based on the plurality of images and a known time interval between images, and display a speed indicator based on the longitudinal translation speed.

公开(公告)号：US11324410B2

公开(公告)日：2022-05-10

申请号：US16683869

申请日：2019-11-14

Applicant: VOLCANO CORPORATION

Inventor： David H. Burkett

IPC: A61B5/0215 ,  A61B5/00 ,  A61B18/14 ,  A61B5/026 ,  A61B5/01 ,  A61B18/00 ,  A61B90/00 ,  A61B8/12

Abstract: Intravascular devices, systems, and methods are disclosed. In some instances, the intravascular device is a guide wire with electrical conductors embedded within a core wire. In some instances, the electrical conductors are coupled to conductive bands adjacent a proximal portion of the guide wire and a sensing element adjacent a distal portion of the guide wire. Methods of making, manufacturing, and/or assembling such intravascular devices and associated systems are also provided.

公开(公告)号：US11246533B2

公开(公告)日：2022-02-15

申请号：US14805116

申请日：2015-07-21

Applicant: Volcano Corporation

Inventor： Eric Henderson ,  Mark Richardson

IPC: A61B5/00 ,  A61B5/0215 ,  A61B5/026 ,  A61B8/12 ,  A61B18/14 ,  A61M25/09

Abstract: The present disclosure is directed to intravascular devices, systems, and methods having a core wire with multiple flattened sections. In one aspect, a sensing guide wire is provided. The guide wire includes a first flexible elongate member; a sensing element positioned at a distal portion of the first flexible elongate member; and a second flexible elongate member coupled to the first flexible elongate member such that the second flexible elongate member extends distally from the first flexible elongate member; and wherein a distal portion of the first flexible elongate member includes at least two flattened sections, and wherein the first and second flexible elongate members are coupled along a portion of one of the at least two flattened sections. In other aspects, methods of forming a sensing guide wire are provided.

公开(公告)号：US11234649B2

公开(公告)日：2022-02-01

申请号：US16293496

申请日：2019-03-05

Applicant: VOLCANO CORPORATION

Inventor： Bradley S. Matsubara ,  John Unser

IPC: A61B8/00 ,  A61B5/00 ,  A61B8/06 ,  A61B8/08 ,  A61B8/12 ,  A61B5/0215 ,  A61B5/0265 ,  A61M1/36 ,  A61B5/026 ,  A61M25/09

Abstract: The invention relates to evaluation of maturity of arteriovenous (AV) fistula using guidewires that measure intravascular blood flow and/or pressure. The invention provides methods of evaluating AV fistula maturation using an instrumented guidewire to measure intravascular flow and/or pressure. By using a small diameter guidewire that does not interfere substantially with the flow, an accurate measurement can be made that is useful for identifying when a fistula is mature and therefore ready to be used for hemodialysis. The flow of blood through the fistula is measured using the guidewire and the measured flow and/or pressure of blood is used to determine if the fistula is mature.

公开(公告)号：US11154313B2

公开(公告)日：2021-10-26

申请号：US14204314

申请日：2014-03-11

Applicant: VOLCANO CORPORATION

Inventor： David G. Miller

IPC: A61B17/22 ,  A61B17/3207 ,  A61M25/01 ,  A61M25/10

Abstract: The invention provides a method of intravascular intervention that includes inserting a guidewire comprising an extended body into a lumen within tissue of a patient, advancing the guidewire into a chronic total occlusion, vibrating a proximal end of the guidewire with a mechanical vibrator, and crossing the chronic total occlusion while a distal end of the guidewire is vibrating.

公开(公告)号：US11141134B2

公开(公告)日：2021-10-12

申请号：US14137465

申请日：2013-12-20

Applicant: Volcano Corporation

Inventor： Paul Douglas Corl

IPC: A61B8/12 ,  A61B8/00 ,  A61B8/08 ,  B06B1/06 ,  H01L41/37 ,  H01L41/18 ,  A61B6/00 ,  A61B8/14

Abstract: An ultrasound transducer for use in intravascular ultrasound (IVUS) imaging systems including a single crystal composite (SCC) layer is provided. The transducer has a front electrode on a side of the SCC layer; and a back electrode on the opposite side of the SCC layer. The SCC layer may have a bowl shape including pillars made of a single crystal piezoelectric material embedded in a polymer matrix. Also provided is an ultrasound transducer as above, with the back electrode split into two electrodes electrically isolated from one another. A method of forming an ultrasound transducer as above is also provided. An IVUS imaging system is provided, including an ultrasound emitter and receiver rotationally disposed within an elongate member; an actuator; and a control system controlling emission of pulses and receiving ultrasound echo data associated with the pulses. The ultrasound emitter and receiver include an ultrasound transducer as above.

公开(公告)号：US11123019B2

公开(公告)日：2021-09-21

申请号：US14961656

申请日：2015-12-07

Applicant: VOLCANO CORPORATION

Inventor： Fergus Merritt ,  Andrew Tochterman ,  Jacqueline Keller

IPC: A61B5/00 ,  A61B5/02 ,  A61B5/0215 ,  A61B5/026 ,  A61B5/06 ,  A61B1/313 ,  G16H20/40 ,  G16H30/40 ,  G16H50/20 ,  A61B6/00 ,  A61B6/03 ,  A61B6/12 ,  A61B8/08 ,  A61B8/12

Abstract: Devices, systems, and methods of mapping a vessel system of a patient and identifying lesions therein are disclosed. This includes a method of evaluating a vessel of a patient, the method comprising obtaining image data for the vessel of the patient, obtaining physiological measurements for the vessel of the patient, co-registering the obtained physiological measurements with the obtained image data such that the physiological measurements are associated with corresponding portions of the vessel of the patient, analyzing the co-registered physiology measurements to determine a classification of a lesion within the vessel of the patient, and outputting, to a user interface, the classification of the lesion. Other associated methods, systems, and devices are also provided herein.

公开(公告)号：US11020089B2

公开(公告)日：2021-06-01

申请号：US14837829

申请日：2015-08-27

Applicant: Volcano Corporation

Inventor： Paul Douglas Corl

IPC: A61B8/00 ,  A61B8/12 ,  A61B5/00 ,  A61B8/14 ,  A61B8/08 ,  A61M25/01

Abstract: Embodiments of the present disclosure are related to intravascular imaging devices having a low reverberation housing and associated systems and methods. In some particular embodiments, the devices of the present disclosure include a transducer housing having a trough on the backside of the ultrasound transducer to deflect ultrasound signals away from the ultrasound transducer. For example, in some implementations an intravascular imaging device is provided that includes a catheter body; a drive cable extending through a lumen of the catheter body; a housing coupled to a distal section of the drive cable; and an ultrasound transducer mounted within the housing, wherein the housing includes a trough on a backside of the ultrasound transducer, the trough shaped to deflect ultrasound signals away from the ultrasound transducer. Methods of making such devices and systems are also provided.

公开(公告)号：US10993618B2

公开(公告)日：2021-05-04

申请号：US16455245

申请日：2019-06-27

Applicant: VOLCANO CORPORATION

Inventor： Richard E. Mansker ,  Michael A. Echeverria

IPC: G06F15/177 ,  G06F9/00 ,  G06F9/24 ,  A61B8/14 ,  A61B6/00 ,  A61B5/05 ,  A61B5/00 ,  A61B8/12 ,  A61B8/00 ,  G16H10/60 ,  G16H40/63 ,  G16H40/40 ,  A61B18/02 ,  A61B5/026 ,  A61B5/029 ,  A61B5/055 ,  A61B18/14 ,  A61B18/00 ,  A61B90/00

Abstract: A dependency-based startup method in a multi-modality medical processing system that includes receiving initialization information about a plurality of executable components to be started, the plurality of executable components including an executable modality component configured to communicate with a medical device communicatively coupled to the multi-modality medical processing system. The method also includes receiving dependency information about the executable modality component, the dependency information identifying one or more of the executable components upon which the executable modality component depends and transforming the initialization information and the dependency information into a dependency map that represents the dependencies between the plurality of executable components. Further, the method includes deriving a start order for the plurality of executable components based on the dependency map and starting the plurality of executable components in the multi-modality medical processing system according to the start order.

公开(公告)号：US10987492B2

公开(公告)日：2021-04-27

申请号：US14132479

申请日：2013-12-18

Applicant: VOLCANO CORPORATION

Inventor： Paul Hoseit

IPC: A61B8/12 ,  A61M25/09 ,  A61N5/06 ,  A61B5/00 ,  G01S15/89 ,  A61B8/00

Abstract: A guidewire providing imaging and light for photoactivation of therapeutic agents. Using optical fibers with Bragg gratings, electromagnetic waves are coupled to photoacoustic materials thereby providing acoustic energy for imaging tissues. The reflected acoustic waves can be sensed with photoreflective materials coupled to different optical fibers. Additional optical fibers allow photoactivated therapeutics to be activated in proximity to the imaged tissues. The photoactivated therapeutics may be administered intravenously or with a drug-delivery catheter.