Intravascular Patents (Class 600/467)
  • Patent number: 11026583
    Abstract: A catheter including a monitoring body and a pair of markers disposed on the monitoring body, each marker of the pair of markers encircling the monitoring body, wherein the pair of markers are configured to indicate, through their appearance from a given point of view, an orientation of the monitoring body.
    Type: Grant
    Filed: April 26, 2017
    Date of Patent: June 8, 2021
    Assignee: International Business Machines Corporation
    Inventors: Julia S. Baldauf, Darcy J. Beurle, Matthew Downton, Kerry Halupka, Stephen M. Moore, Christine Schieber
  • Patent number: 10932752
    Abstract: A catheter includes a first structure having an elongated catheter body with at least one lumen and a first connection portion. The catheter includes a second structure that has a second connection portion which is connectable to the distal side of the first connection portion and a third structure that has an inner tube in which an elongated imaging core having an image capturing unit for capturing an image is positionable and a third connection portion which is connectable to the proximal side of the first connection portion. The catheter includes a first prevention portion to prevent the first connection portion from connecting to the third connection portion when the first and second connection portions are connected and a second prevention portion to prevent the first connection portion from connecting to the second connection portion when the first and third connection portions are connected.
    Type: Grant
    Filed: March 15, 2018
    Date of Patent: March 2, 2021
    Assignee: TERUMO KABUSHIKI KAISHA
    Inventor: Yuuki Sakaguchi
  • Patent number: 10905395
    Abstract: A diagnostic imaging catheter is disclosed which includes a drive shaft, of which a distal portion is provided with a signal transmitting and receiving unit, and which can be rotated; a sheath including a lumen into which the drive shaft is inserted such that the drive shaft can be moved forward and backward; a communicating hole which is provided in a distal portion of the sheath, and through which the inside and the outside of the sheath communicate with each other; and a valve body capable of opening and closing the communicating hole. The valve body is configured to be capable of switching between a closed state in which the communicating hole is covered and blocked with the valve body and an open state which the valve body enters by being moved to the outside of the sheath from the closed state, and in which the communicating hole is open.
    Type: Grant
    Filed: September 9, 2016
    Date of Patent: February 2, 2021
    Assignee: TERUMO KABUSHIKI KAISHA
    Inventors: Kenta Mitsuhashi, Yuuki Sakaguchi
  • Patent number: 10869603
    Abstract: Systems and methods for user control over the acquisition, processing, and presentation of medical data are provided. Some embodiments are particularly directed to controlling the display of multi-modality medical data in a multi-modality processing system. In one embodiment, a medical imaging system receives a set of medical data including a first data subset collected using a first sensor and a second data subset collected using a second sensor, where the first sensor and the second sensor are different. A display attribute to be applied to the first data subset independent of the second data subset is received. An instruction is generated that affects the processing of the first data subset based on the display attribute. The first data subset is processed according to the instruction. The processed first data subset is displayed according to the display attribute, and the second data subset is displayed independent of the display attribute.
    Type: Grant
    Filed: December 18, 2013
    Date of Patent: December 22, 2020
    Assignee: PHILIPS IMAGE GUIDED THERAPY CORPORATION
    Inventors: Bret C. Millett, Paul Michael Hoseit
  • Patent number: 10789711
    Abstract: Some embodiments are directed to a method of estimating a velocity of a contrast agent. The method includes receiving a plurality of video frames that were produced using a dynamic contrast enhanced imaging process, each video frame including a plurality of pixels/voxels. Information from the video frames is used to estimate velocity vectors indicating the velocity and direction of the agent with the vascular networks. The estimated velocity can be used to diagnose cancer, such as prostate cancer. Instead of velocity vectors, agent trajectories can be determined also used for the same purpose.
    Type: Grant
    Filed: September 8, 2016
    Date of Patent: September 29, 2020
    Assignee: TECHNISCHE UNIVERSITEIT EINDHOVEN
    Inventors: Massimo Mischi, Ruud Johannes Gerardus Van Sloun
  • Patent number: 10765444
    Abstract: The present application discloses a medical instrument for tissue ablation by a minimally invasive surgical procedure, including a hollow outer shaft, an inner shaft which can be guided longitudinally displaceably in the hollow outer shaft, and a control portion at a proximal end of the medical instrument, in order to position the hollow outer shaft. An attachment for mechanical ablation of tissue is arranged at a distal end of the inner shaft, wherein the attachment does not protrude beyond an inner profile formed by the inner faces of the outer shaft, and wherein at any rate the distal end of the attachment protrudes beyond the distal end of the hollow outer shaft in order to ablate tissue. The medical instrument may be combined with further medical appliances, in particular with an HF coagulation attachment or a laser coagulation attachment for tissue coagulation.
    Type: Grant
    Filed: July 10, 2018
    Date of Patent: September 8, 2020
    Assignee: KARL STORZ SE & CO. KG
    Inventors: Oliver Löffler, Stefan Rehbein, Uwe Wittke
  • Patent number: 10702212
    Abstract: A magnetic resonance examination system includes an RF arrangement with an RF antenna to acquire magnetic resonance signals from an object to be examined. A motion sensing arrangement detects motion information of the object. The motion sensing arrangement is provided with one or more RF antenna motion sensors mounted on the RF antenna and one or more object motion sensors to be attached to the object. In an example the motion sensors are integrated devices having motion sensitivity along three independent axes.
    Type: Grant
    Filed: June 17, 2013
    Date of Patent: July 7, 2020
    Assignee: Koninklijke Philips N.V.
    Inventor: Marinus Johannes Adrianus Maria Van Helvoort
  • Patent number: 10653391
    Abstract: Among other things, there is disclosed structure and methods for registering images obtained through internal (e.g. intravascular) ultrasound devices. Embodiments of a device with a rotating ultrasound beam is provided, with a wall of the device being anisotropic in ultrasound passage. As examples, a cable opaque to ultrasound is attached along the wall of the device, so that the ultrasound beam at the location of the cable is blocked, reflected or scattered. As another example, a thin film of metallic material is placed on or in the wall to allow a portion of the beam to be blocked or attenuated. The imaging system recognizes the changes to the signals made by the anisotropic wall, and registers successive images according to those changes.
    Type: Grant
    Filed: April 10, 2015
    Date of Patent: May 19, 2020
    Assignee: Muffin Incorporated
    Inventors: Neal E. Fearnot, Peter S. McKinnis, Sarah Robbins, Yun Zhou
  • Patent number: 10602989
    Abstract: A probe, system, and method of capacitive sensing for detection of relative rotation of one tube with respect to a fixed tube of a probe is provided herewith. The probe includes an inner core, a concentric cylindrical tube, and at least one inner electrode fixed to the inner core and at least one outer electrode fixed to the cylindrical tube. The electrodes are rotationally aligned and form a capacitive sensor that can sense the rotation angle of the inner core compared to the cylindrical tube. This ability to sense relative rotation angle can be used to detect and/or correct for non-uniform rotational distortion.
    Type: Grant
    Filed: September 2, 2016
    Date of Patent: March 31, 2020
    Assignee: Canon U.S.A., Inc.
    Inventor: Zhuo Wang
  • Patent number: 10595820
    Abstract: The present invention generally relates to a rapid exchange configuration that reduces the profile of a catheter riding on a guidewire and minimizes guidewire resistance. According to certain embodiments, a body of the catheter includes a distal portion and a proximal portion. The distal portion defines a guidewire lumen and includes a guidewire exit port being open in a proximal direction and leading to the guidewire lumen. A proximal section of the guidewire lumen is straight.
    Type: Grant
    Filed: December 17, 2013
    Date of Patent: March 24, 2020
    Assignee: PHILIPS IMAGE GUIDED THERAPY CORPORATION
    Inventors: Jeremy Stigall, Maritess Minas
  • Patent number: 10492757
    Abstract: A diagnostic imaging catheter includes a drive shaft provided with a signal transmitting and receiving unit at a distal portion thereof and which is rotatable and movable forward and backward, a sheath into which the drive shaft is inserted, a relay connector coupled to a proximal end of the sheath, a support tube provided at an outer circumference of the drive shaft along an axial direction and which moves forward and backward in conjunction with the drive shaft, a seal member provided inside the relay connector and which seals a space between the relay connector and the support tube, and an injection opening located in a region closer to a distal side than the seal member and closer to a proximal side than a distal end of the support tube in a backward movement limit position thereof and via which a liquid is able to be injected into the sheath.
    Type: Grant
    Filed: May 19, 2017
    Date of Patent: December 3, 2019
    Assignee: TERUMO KABUSHIKI KAISHA
    Inventor: Yuuki Sakaguchi
  • Patent number: 10368891
    Abstract: An ablation system for treating atrial fibrillation in a patient comprises an elongate shaft having proximal and distal ends, a lumen therebetween and a housing adjacent the distal end of the elongate shaft. An energy source is coupled to the housing and is adapted to deliver energy to a target tissue so as to create a zone of ablation in the target tissue that blocks abnormal electrical activity thereby reducing or eliminating the atrial fibrillation in the patient. A sensor is adjacent the energy source and adapted to detect relative position of the energy source to the target tissue or characteristics of the target tissue. The system also has a reflecting element operably coupled with the energy source and adapted to redirect energy emitted from the energy source in a desired direction or pattern.
    Type: Grant
    Filed: September 28, 2012
    Date of Patent: August 6, 2019
    Assignee: VytronUS, Inc.
    Inventors: Hira V. Thapliyal, David A. Gallup, James W. Arenson
  • Patent number: 10299826
    Abstract: A needle for invasive medical use includes a long extended cylindrical needle shaft having an axis and an outer surface area, with a short shaft end at a first end of the shaft with a beveled tip with a pointed end, and a needle hub attached to a second end of the shaft including a device to indicate the location of the shaft end during use inside a body. The needle has a flexible joint with a notch within the shaft at the beginning of the shaft end. The device is a displacement sensor for detecting a displacement of the shaft end relative to the rest of the shaft resulted from a force applied to the shaft end when the needle hub is moved and a signal conductor to transmit the detected signals. The invention further describes a needle assembly comprising such a needle and a syringe attached to said needle hub, whereas an evaluation unit is connected to the signal conductor.
    Type: Grant
    Filed: December 16, 2014
    Date of Patent: May 28, 2019
    Assignee: Sensoptic SA
    Inventors: Axel Bertholds, Pere Llosas, Simon Henein, Charles Baur
  • Patent number: 9833616
    Abstract: An implantable medical device (IMD) can include implantable pulse generator (IPG) devices, implantable cardioverter-defibrillators (ICD), cardiac resynchronization therapy defibrillator devices, neurostimulators or combinations thereof. In one example, the IMD can include a body assembly, which can provide at least one electrical signal corresponding to a therapy. The IMD can also include a cardiac lead assembly, which can have a proximal portion and a distal portion. The proximal portion of the cardiac lead assembly can be in communication with the body assembly to receive the therapy and the distal portion can be adapted to be coupled to an anatomical structure to transmit the at least one electrical signal to the anatomical structure. The proximal portion of the cardiac lead assembly can have a first stiffness and the distal portion can have a second stiffness. The first stiffness can be greater than the second stiffness.
    Type: Grant
    Filed: December 29, 2009
    Date of Patent: December 5, 2017
    Assignee: Medtronic, Inc.
    Inventor: Nathan Lee Olson
  • Patent number: 9456802
    Abstract: A system for use with ultrasound procedures including an ultrasound control and/or imaging system which has a microminiature motor, a rotatable reflector and a stationary ultrasound transducer. The transducer may be placed between the motor and the reflector, so as to eliminate the need for placement of wires or other artifact-creating items in the path of ultrasound signals. In particular embodiments, such systems can be incorporated in or retrofitted to commercially standard diagnostic and therapeutic catheters or other housings. Examples can be used in variety of ultrasound procedures, e.g. to perform intravascular ultrasound (IVUS) imaging.
    Type: Grant
    Filed: October 11, 2013
    Date of Patent: October 4, 2016
    Assignee: Muffin Incorporated
    Inventors: Yun Zhou, Peter S. McKinnis, Neal E. Fearnot
  • Patent number: 9345447
    Abstract: A method for determining the location of a medical device within a body is provided. The method includes transmitting from the medical device an acoustic signal; receiving with the medical device a reflected acoustic signal; advancing the medical device based on a first algorithm, the first algorithm including a first weighting factor and a first feature extracted from the reflected acoustic signal; determining a first location of the medical device based on the first algorithm; and moving the medical device to a second location based on a second algorithm, the second algorithm based on the determined first location and including at least one of a second weighting factor and a second feature extracted from the reflected acoustic signal. Also disclosed are systems and devices for performing the methods described herein.
    Type: Grant
    Filed: March 14, 2013
    Date of Patent: May 24, 2016
    Assignee: VasoNova, Inc.
    Inventors: Brian J. Wenzel, Kichang Lee, Stephen P. Hanlon, Miroslav Navratil, Jin Jiang
  • Patent number: 9326751
    Abstract: An in vivo apparatus includes a flexible shaft having a proximal end, a distal end, and a length sufficient to access a patient's renal artery relative to a percutaneous access location. An energy guide apparatus is provided at the distal end of the shaft and dimensioned for deployment within the renal artery. An ex vivo apparatus includes an arrangement configured to localize the energy guide apparatus within the renal artery, and an energy source configured to direct ablative energy to target tissue located a predetermined distance from the localized energy guide apparatus. The target tissue includes perivascular renal nerve tissue adjacent the renal artery.
    Type: Grant
    Filed: November 14, 2011
    Date of Patent: May 3, 2016
    Assignee: Boston Scientific Scimed, Inc.
    Inventor: Roger Hastings
  • Patent number: 9314163
    Abstract: A sensing device for a collapsible prosthetic heart valve, the sensing device including an elongated shaft having a proximal end and a distal end, a sensing body coupled to the distal end of the shaft, the sensing body being adapted to fit within a native valve annulus and at least one microelectromechanical sensor attached to the sensing body, the at least one sensing body being capable of measuring a property of tissue.
    Type: Grant
    Filed: January 29, 2013
    Date of Patent: April 19, 2016
    Assignee: St. Jude Medical, Cardiology Division, Inc.
    Inventors: Ramji T. Venkatasubramanian, Chad Joshua Green
  • Patent number: 9089340
    Abstract: An imaging assembly comprises a catheter having a distal end and a proximal end, an ablation tip at the distal end of the catheter, and an imaging device disposed within the ablation tip. The catheter defines a catheter lumen that extends from the proximal end to the distal end. The catheter is configured and arranged for insertion into a body lumen such as a blood vessel or heart chamber. The ablation tip has a wall that defines a lumen in communication with the lumen of the catheter. The imaging device is disposed within the lumen of the ablation tip, and is configured to transmit pulsed acoustic waves for generating images of body tissue at a target ablation site within the body.
    Type: Grant
    Filed: December 21, 2011
    Date of Patent: July 28, 2015
    Assignee: Boston Scientific Scimed, Inc.
    Inventors: Roger Hastings, Josef V. Koblish, Michael J. Pikus, Leonard B. Richardson, Kevin Edmunds, Tat-Jin Teo
  • Patent number: 9033890
    Abstract: An optical coherent tomographic image forming apparatus includes: a first switch for instructing rotation of the optical deflection unit at a first speed; a second switch for instructing rotation of the optical deflection unit at a second speed which is higher than the first speed; and a driving controller which drives the optical deflection unit rotationally at the first speed in case of detecting instruction operation of the first switch and which changes the rotation speed of the optical deflection unit to the second speed, in case of detecting instruction operation of the second switch, under the condition that the optical deflection unit rotates at the first speed when the second switch is instructionally operated.
    Type: Grant
    Filed: March 30, 2012
    Date of Patent: May 19, 2015
    Assignee: TERUMO KABUSHIKI KAISHA
    Inventor: Junya Furuichi
  • Patent number: 9017263
    Abstract: A system and method for quantitative determination of density of vasa vasorum in an arterial wall that utilizes a detection of temporal and/or spatial displacement of blood-flow with the use of intravascular ultrasound system. Locations of extrema in the spatial distribution can be identified to detect vascular defects. The system and method support a clinically-useful application for early detection of indicators of diseases, such as coronary atherosclerosis.
    Type: Grant
    Filed: June 24, 2011
    Date of Patent: April 28, 2015
    Assignee: Mayo Foundation for Medical Education and Research
    Inventors: Amir Lerman, Erik L Ritman, Timothy L Kline, Regina Moritz
  • Publication number: 20150099942
    Abstract: A catheter for delivering securing elements to a tissue, such as a blood vessel, and imaging the tissue before, after, or during the imaging. The catheters incorporate intravascular ultrasound (IVUS) imaging, including Focused Acoustic Computed Tomography (FACT), as well as optical coherence tomography (OCT).
    Type: Application
    Filed: September 26, 2014
    Publication date: April 9, 2015
    Inventor: Philippe K. Edouard
  • Publication number: 20150099968
    Abstract: Systems and methods are disclosed for performing a zoom operation based on a single motion input. A user interface can be adapted to display an image, detect a single motion input and contemporaneously control a zoom operation on the image. Zoom operations can include a zoom magnitude, direction, and distance. Single motion inputs can include, for example, a swipe of a finger on a touchscreen or a click and drag operation performed on a mouse.
    Type: Application
    Filed: October 7, 2014
    Publication date: April 9, 2015
    Inventor: Joseph A. Jamello
  • Publication number: 20150094595
    Abstract: Disclosed are embodiments of devices and methods for imaging the inside of a body part, such as a blood vessel. In particular embodiments, a catheter has a chamber within which is a transducer. A wire guide channel extends throughout the length of the catheter. The transducer is rotatable around the wire guide channel.
    Type: Application
    Filed: September 30, 2014
    Publication date: April 2, 2015
    Inventors: William J. Havel, Sarah Robbins, Peter S. McKinnis, Yun Zhou, Neal E. Fearnot
  • Patent number: 8983582
    Abstract: Methods and apparatuses for positioning medical devices onto (or close to) a desired portion of the interior wall of an internal channel, such as for scan imaging, for photodynamic therapy and/or for optical temperature measurement. In one embodiment, a catheter assembly has a distal portion that can be changed from a configuration suitable for traversing the internal channel to another configuration suitable for scan at least a spiral section of the interior wall of an internal channel, such as an artery. In one example, the distal portion spirals into gentle contact with (or close to) a spiral section of the artery wall for Optical Coherence Tomography (OCT) scanning. The spiral radius may be changed through the use of a guidewire, a tendon, a spiral balloon, a tube, or other ways.
    Type: Grant
    Filed: December 20, 2004
    Date of Patent: March 17, 2015
    Assignee: Advanced Cardiovascular Systems, Inc.
    Inventor: William E. Webler
  • Patent number: 8961425
    Abstract: An intravascular ultrasound probe is disclosed, incorporating features for utilizing an advanced transducer technology on a rotating transducer shaft. In particular, the probe accommodates the transmission of the multitude of signals across the boundary between the rotary and stationary components of the probe required to support an advanced transducer technology. These advanced transducer technologies offer the potential for increased bandwidth, improved beam profiles, better signal to noise ratio, reduced manufacturing costs, advanced tissue characterization algorithms, and other desirable features. Furthermore, the inclusion of electronic components on the spinning side of the probe can be highly advantageous in terms of preserving maximum signal to noise ratio and signal fidelity, along with other performance benefits.
    Type: Grant
    Filed: March 25, 2013
    Date of Patent: February 24, 2015
    Assignee: Volcano Corporation
    Inventor: Paul Douglas Corl
  • Patent number: 8942789
    Abstract: In a method for fluoroscopy controlled insertion of a stent into a curved aorta for aneurysm repair, a 3D volume image is obtained of a patient's aorta at the aneurysm. By knowing a registration of the 3D volume image to a C-arm of an angiographic system and projection geometry of the angiography system, the 3D volume images are projected to a 2D fluoroscopy image of the angiography system. For the 2D3D overlay, the 3D volume image is displayed as a curved planar reconstruction in which the 2D fluoroscopy image and the 3D volume image are warped around a curved center line of the curved aorta or around a curved guide instrument center line to correct for the curvature of the aorta so that the previously curved aorta center line or curved center line of the guide instrument turns into a straight line to visualize insertion of the stent.
    Type: Grant
    Filed: October 7, 2010
    Date of Patent: January 27, 2015
    Assignee: Siemens Aktiengesellschaft
    Inventors: Martin Ostermeier, Marcus Pfister
  • Patent number: 8932223
    Abstract: A design and a fabrication method for an intravascular imaging and therapeutic catheters for combined ultrasound, photoacoustic, and elasticity imaging and for optical and/or acoustic therapy of hollow organs and diseased blood vessels and tissues are disclosed in the present invention. The invention comprises both a device—optical fiber-based intravascular catheter designs for combined IVUS/IVPA, and elasticity imaging and for acoustic and/or optical therapy—and a method of combined ultrasound, photoacoustic, and elasticity imaging and optical and/or acoustic therapy. The designs of the catheters are based on single-element catheter-based ultrasound transducers or on ultrasound array-based units coupled with optical fiber, fiber bundles or a combination thereof with specially designed light delivery systems. One approach uses the side fire fiber, similar to the one utilized for biomedical optical spectroscopy.
    Type: Grant
    Filed: November 1, 2010
    Date of Patent: January 13, 2015
    Assignee: Board of Regents, The University of Texas System
    Inventors: Stanislav Emelianov, Andrei Karpiouk, Bo Wang
  • Patent number: 8932226
    Abstract: An ultrasound catheter is described herein for insertion into a cavity such as a blood vessel to facilitate imaging within a vasculature. The catheter comprises an elongate flexible shaft, a capacitive microfabricated ultrasonic transducer, and a sonic reflector. The elongate flexible shaft has a proximate end and a distal end. A capacitive microfabricated ultrasonic transducer (cMUT) is mounted to the shaft near the distal end. The reflector is positioned such that a reflective surface redirects ultrasonic waves to and from the transducer. In other embodiments, the catheter comprises a plurality of cMUT elements and operates without the use of reflectors. In further embodiments, integrated circuitry is incorporated into the design.
    Type: Grant
    Filed: July 31, 2012
    Date of Patent: January 13, 2015
    Assignee: Volcano Corporation
    Inventors: Norman Hugh Hossack, Blair Walker, Stephen Charles Davies, Donald Stanley Mamayek, John F. Sheridan
  • Publication number: 20150005626
    Abstract: A probe is configured to be detachably attached to a rotary junction unit of the imaging apparatus for diagnosis, and is inserted into a body lumen. The probe includes a plurality of transmitting and receiving units that obtain tomographic images by transmitting and receiving signals inside the body lumen and a drive shaft that receives a rotary-drive force from the rotary junction unit and rotates the plurality of transmitting and receiving units. Then, the plurality of transmitting and receiving units are respectively disposed along axial directions by adjusting angles with respect to directions orthogonal to the axial directions so that the signals are transmitted in directions identical to the directions orthogonal to the axial directions of the rotation among directions to a distal side of the probe and a proximal side of the probe.
    Type: Application
    Filed: September 15, 2014
    Publication date: January 1, 2015
    Applicant: TERUMO KABUSHIKI KAISHA
    Inventor: Kenji KANEKO
  • Publication number: 20140371598
    Abstract: A catheter including a sheath configured to be inserted into a lumen; a drive shaft inserted into the sheath; an image information acquiring unit fixed to a distal end of the drive shaft and acquires image information; a hub which moves the drive shaft in an axial direction of the sheath; an outer tube on a proximal end side of the sheath and includes a first connector at a proximal end thereof; a second connector which includes on a proximal end side of the outer tube a male connector able to be connected to and disconnected from the first connector; and an inner tube on a distal end side of the hub, that moves with respect to the outer tube along with the movement of the hub, and includes at a distal end thereof a latch section that is not able to pass through the second connector.
    Type: Application
    Filed: September 4, 2014
    Publication date: December 18, 2014
    Applicant: TERUMO KABUSHIKI KAISHA
    Inventors: Itaru OKUBO, Haruhiko KAMIJO
  • Patent number: 8909323
    Abstract: A system provides a single composite image including multiple medical images of a portion of patient anatomy acquired using corresponding multiple different types of imaging device. A display processor generates data representing a single composite display image including, a first image area showing a first image of a portion of patient anatomy acquired using a first type of imaging device, a second image area showing a second image of the portion of patient anatomy acquired using a second type of imaging device different to the first type. The first and second image areas include first and second markers respectively. The first and second markers identify an estimated location of the same corresponding anatomical position in the portion of patient anatomy in the first and second images respectively.
    Type: Grant
    Filed: July 15, 2010
    Date of Patent: December 9, 2014
    Assignee: Siemens Medical Solutions USA, Inc.
    Inventor: John Baumgart
  • Patent number: 8905936
    Abstract: A catheter includes a catheter main body provided with a window portion through which an inspection wave passes, a drive shaft provided with a detection unit detecting the inspection wave and concurrently installed advanceably and retractably in an axial direction inside the catheter main body, and a bias member biasing a force onto the drive shaft for moving the drive shaft forward toward the distal side thereof.
    Type: Grant
    Filed: April 18, 2012
    Date of Patent: December 9, 2014
    Assignee: Terumo Kabushiki Kaisha
    Inventor: Shigenobu Iwahashi
  • Publication number: 20140343433
    Abstract: An intravenous ultrasound (IVUS) system can include a catheter and a translation mechanism for translating the catheter. Engagement between the catheter and the translation mechanism may be detected, and the translation mechanism can be placed in a connected or disconnected mode, accordingly. When in connected mode, certain IVUS operations may be enabled when compared to disconnected mode, wherein such operations may be disabled. Thus, some embodiments may ensure proper engagement between the catheter and the translation mechanism prior to allowing certain IVUS operations to be carried out.
    Type: Application
    Filed: May 14, 2013
    Publication date: November 20, 2014
    Applicant: ACIST Medical Systems, Inc.
    Inventor: Arcadi Elbert
  • Publication number: 20140343434
    Abstract: An intravenous ultrasound (IVUS) system can include a catheter which can include memory. Because portions of the catheter are in intimate contact with the patient, electrical signals are isolated for safety. The IVUS system or catheter can thus comprise a catheter interface which provides bidirectional isolation circuitry for coupling the catheter to additional components of the IVUS system. Such circuitry allows for memory operation and communication from within the catheter while remaining electrically isolated. Catheter memory can contain information specific to the catheter such as the type of catheter, information regarding catheter components, information regarding catheter use, and other information useful for catheter operation.
    Type: Application
    Filed: May 15, 2013
    Publication date: November 20, 2014
    Inventor: Arcadi Elbert
  • Patent number: 8882674
    Abstract: A system includes an in vivo imaging device for imaging a blood vessel with a resolution level of at least fifty micrometers. The in vivo imaging device is capable of detecting a microcalcification in a fibrous cap of an atheroma. The system also includes a processor for receiving an image of the blood vessel from the in vivo imaging device. The processor uses the image to determine whether the blood vessel contains at least one microcalcification within the fibrous cap. In some embodiments, the processor is configured and arranged to predict a risk of rupture of the fibrous cap based, at least in part, on the presence of the at least one microcalcification. In some embodiments, treatment of a patient is based on the determination from the imaging whether the blood vessel includes at least one microcalcification within the fibrous cap of the atheroma.
    Type: Grant
    Filed: September 25, 2007
    Date of Patent: November 11, 2014
    Assignees: Research Foundation of the City University of New York, Columbia University
    Inventors: Sheldon Weinbaum, Yuliya Vengrenyuk, Luis Cardoso, Lucas Parra, Stephane Carlier, Savvas Xanthos
  • Patent number: 8876722
    Abstract: An endoventricular injection catheter with integrated echocardiographic capability enables injections into heart tissue under visualization. The catheter includes an elongated body having a distal end and an imaging core arranged to be inserted into a heart. The imaging core is arranged to transmit ultrasonic energy and to receive reflected ultrasonic energy at the distal end to provide electrical signals representing echocardiographic images to enable cardiac visualization. The catheter further includes an injector carried on the elongated body with the imaging core. The injector is arranged to inject a therapeutic agent into tissue of the heart visualized by the imaging core.
    Type: Grant
    Filed: July 16, 2010
    Date of Patent: November 4, 2014
    Assignee: ACIST Medical Systems, Inc.
    Inventors: Kendall R. Waters, Thomas C. Moore, Robert Zelenka, Paul Zalesky
  • Patent number: 8864675
    Abstract: An improved catheter is provided. The catheter may include a deflectable member located at a distal end of a catheter body. The deflectable member may comprise an ultrasound transducer array. The deflectable member may be interconnected to the catheter body by a live hinge. The catheter may include a lumen extending from a proximal end of the catheter body to the distal end. The lumen may be used to deliver an interventional device to a point distal to the distal end of the catheter body. The deflectable member may be selectively deflectable in a pivot-like manner through an arc of at least 90 degrees. In embodiments where the deflectable member includes an ultrasound transducer array, the ultrasound transducer array may be operable to image both when aligned with the catheter body and when pivoted relative to the catheter body.
    Type: Grant
    Filed: January 7, 2010
    Date of Patent: October 21, 2014
    Assignee: W. L. Gore & Associates, Inc.
    Inventors: Dennis R. Dietz, Curtis J. Franklin, John L. Loewen, David J. Messick, Craig T. Nordhausen, Clyde G. Oakley, Ryan C. Patterson, Jim H. Polenske, Shawn D. Quick, Daniel H. Todd, Thomas L. Tolt, David W. Wilson
  • Patent number: 8852112
    Abstract: An improved catheter is provided. The catheter may include a deflectable member located at a distal end of the catheter. The deflectable member may comprise an ultrasound transducer array. The catheter may include a lumen extending from a proximal end of the catheter to the distal end. The lumen may be used to deliver an interventional device to a point distal to the distal end of the catheter. The deflectable member may be selectively deflectable in a pivot-like manner through an arc of at least 90 degrees. In embodiments where the deflectable member includes an ultrasound transducer array, the ultrasound transducer array may be operable to image both when aligned with the catheter and when pivoted relative to the catheter. When pivoted relative to the catheter, the ultrasound transducer array may have a field of view distal to the distal end of the catheter.
    Type: Grant
    Filed: December 31, 2008
    Date of Patent: October 7, 2014
    Assignee: W. L. Gore & Associates, Inc.
    Inventors: Paul A. Bielewicz, Richard W. Denny, Dennis R. Dietz, Michael J. Fife, Joseph A. Huppenthal, David J. Messick, Craig T. Nordhausen, Clyde G. Oakley, Ryan C. Patterson, Jim H. Polenske
  • Publication number: 20140276085
    Abstract: Presenting intravascular images and angiographic images co-registered on a display. As an imaging catheter is pushed through an occlusion, a center point of the catheter and an outline of the vessel wall can be displayed. A physician can see where the catheter is crossing the occlusion within the vessel. The physician can determine what path the catheter is taking the through occlusion. Methods include extending an imaging catheter through the occlusion, determining a location of a wall of the vessel relative to a center point of the catheter, obtaining a position of the catheter within a lumen of the vessel via angiography, and displaying the catheter crossing the occlusion by co-registering the location of the wall, the position of the catheter within the lumen, and the lumen on a display.
    Type: Application
    Filed: March 12, 2014
    Publication date: September 18, 2014
    Applicant: VOLCANO CORPORATION
    Inventor: David G. Miller
  • Publication number: 20140276015
    Abstract: The invention provides devices and methods for crossing total chronic occlusions. In certain aspects, a device for imaging a vessel includes an elongate body defining a first lumen and comprising a distal end; a housing operably associated with the distal end and comprising a forward-looking imaging element; and a member at least partially disposed within the first lumen of the elongate body; the member configured to extend beyond the distal end of the elongate body to advance into an occluded vessel.
    Type: Application
    Filed: March 12, 2014
    Publication date: September 18, 2014
    Applicant: VOLCANO CORPORATION
    Inventor: Chester Whiseant
  • Publication number: 20140276087
    Abstract: A method of fabricating miniature ultrasound transducers includes receiving a wafer on which a plurality of miniature ultrasound transducers is formed. The miniature ultrasound transducers each includes: a transducer membrane that contains a piezoelectric material and a first bond pad and a second bond pad each electrically coupled to the transducer membrane. A protective layer is conformally deposited over the plurality of miniature ultrasound transducers from a front side of the wafer. A first etching process is performed to form a plurality of first trenches that extend into the wafer from the front side. The first trenches are etched through the protective layer. The first trenches are disposed between adjacent miniature ultrasound transducers. A second etching process is performed to remove portions of the protective layer disposed over the first and second bond pads, thereby exposing the first and second bond pads.
    Type: Application
    Filed: March 14, 2014
    Publication date: September 18, 2014
    Inventor: Paul Douglas Corl
  • Publication number: 20140276016
    Abstract: The invention is an imaging catheter chamber having a plurality of openings to allow easy passage of fluids, e.g., saline from the interior of the chamber to the exterior of the catheter. The invention is useful for both IVUS and OCT imaging.
    Type: Application
    Filed: March 14, 2014
    Publication date: September 18, 2014
    Applicant: VOLCANO CORPORATION
    Inventors: Jeremy Stigall, Gloria Robinson
  • Publication number: 20140276086
    Abstract: The invention generally relates to intravascular intervention catheters and provides catheters for performing an intravascular procedure that use a mechanism to control an operation at the end of the catheter. The mechanism can be used to steer the distal tip of the catheter from a controller at a proximal end of the catheter. The mechanism may include one or more pull wires extending along the catheter. The mechanism may optionally be manually or computer controlled.
    Type: Application
    Filed: March 13, 2014
    Publication date: September 18, 2014
    Applicant: VOLCANO CORPORATION
    Inventor: David G. Miller
  • Publication number: 20140276017
    Abstract: The invention includes patient interface modules that guide the workflow of an intravascular medical imaging procedure. In some instances a Patient Interface Modules (PIM) connected to the imaging catheter has one or more indicators that guide the workflow. Some modules may be adapted to connect to multiple imaging devices, or an imaging device and a pressure sensing device, or other treatment device.
    Type: Application
    Filed: March 14, 2014
    Publication date: September 18, 2014
    Applicant: VOLCANO CORPORATION
    Inventor: Jason Sproul
  • Publication number: 20140276084
    Abstract: Devices and methods of the invention provide for imaging an object within a body lumen. In certain aspects, a device for intraluminal imaging of the invention includes an elongate body defining a longitudinal axis, and a linear-array of imaging elements located on the body along the longitudinal axis.
    Type: Application
    Filed: March 12, 2014
    Publication date: September 18, 2014
    Applicant: VOLCANO CORPORATION
    Inventor: Nathaniel J. Kemp
  • Publication number: 20140257095
    Abstract: The invention relates to systems and methods for three dimensional imaging of tissue. The invention provides systems and methods to provide a representation of tissue from three-dimensional data that includes intravascular imaging data as well as data representing a shape of the intravascular imaging probe. Device of the invention combine a shape-sensing mechanism with an intravascular intervention catheter.
    Type: Application
    Filed: March 11, 2014
    Publication date: September 11, 2014
    Applicant: VOLCANO CORPORATION
    Inventors: Nathaniel J. Kemp, Timothy K. Glynn
  • Patent number: 8828040
    Abstract: A device for the transfer of radiopaque material within the body comprises a valvuloplasty or other balloon coated with the radiopaque material. The balloon is inflated in the aortic valve for marking the site of an aortic annulus to enable accurate placement of prosthetic valves under fluoroscopic imaging.
    Type: Grant
    Filed: July 6, 2010
    Date of Patent: September 9, 2014
    Inventor: Thomas G. Goff
  • Publication number: 20140243679
    Abstract: A medical imaging assembly includes an elongated catheter having a connector at the proximal end; an array of transducers on the distal end of the catheter; conductors electrically coupled to the array of transducers and in electrical communication with the connector of the catheter; and a control unit coupleable to the catheter to send and receive electrical signals between the control unit and the array of transducers through the connector of the catheter. The control unit has a processor to execute instructions including 1) selecting a first subset of M transmitting transducers and a second subset of N receiving transducers from the array of transducers, where N>M; and 2) for each of at least N transmit/receive cycles, a) directing the first subset of M transmitting transducers to transmit an acoustic signal; and b) directing the second subset of N receiving transducers to receive corresponding echo signals.
    Type: Application
    Filed: February 27, 2014
    Publication date: August 28, 2014
    Applicant: Boston Scientific SciMed, Inc.
    Inventors: Lewis Jones Thomas, III, Wenguang Li, Anming He Cai
  • Patent number: 8801617
    Abstract: Devices, systems, and methods for ultrasonically acquiring far-field and near-field images within a body are disclosed. An ultrasound imaging device adapted for insertion within a body includes a first ultrasonic sensor configured to transmit ultrasonic waves at a first frequency for acquiring far-field images within the body, and a second ultrasonic sensor configured to transmit ultrasonic waves at a higher frequency than the first frequency for acquiring near-field images within the body. The ultrasound imaging device can be connected to a control device and user interface for visualizing far-field and near-field images acquired by the ultrasonic sensors.
    Type: Grant
    Filed: February 20, 2012
    Date of Patent: August 12, 2014
    Assignee: Boston Scientific Scimed Inc.
    Inventor: David McGee