Aortic Balloon Pumping Patents (Class 600/18)
  • Patent number: 10918773
    Abstract: Disclosed herein is a collapsible and self-expanding cannula for a percutaneous heart pump. The collapsible and self-expanding cannula comprises an open proximal end, an open distal end, and an elongate fluid-impermissible wall structure that includes a first balloon film, a cannula strut, and a second balloon film. The first balloon film is disposed on an interior surface of the cannula, the second balloon film is disposed on the exterior surface of the cannula, and the cannula strut is between the two balloon films. Together they form an integrated hybrid structure upon thermal fusion bonding. Also disclosed herein is a method of manufacturing the collapsible and self-expanding cannula.
    Type: Grant
    Filed: March 8, 2019
    Date of Patent: February 16, 2021
    Assignee: TCI LLC
    Inventors: Xiaoping Guo, David Panus
  • Patent number: 10912872
    Abstract: A cardiac pump and an assist system is provided that increases blood ejection from a compromised heart. An implantable cardiac pump acting as an assist device provided includes an attachment system and locating features that enable a minimally invasive procedure to implant and deploy one or more aortic blood pumps in a patient. The insertable cardiac pump is replaceable without resort to a conventional open surgical procedure. Monitoring of cardiac pump operation allows for replacement in advance of chamber failure. The dynamics of blood-contacting interface of the cardiac assist device mimic the dynamics of the blood-contacting interface of a naturally occurring left ventricle, thereby minimizing flow-related device-associated pathologic disturbances of intravascular clotting mechanisms.
    Type: Grant
    Filed: July 22, 2016
    Date of Patent: February 9, 2021
    Assignee: VIADERM LLC
    Inventor: Allen B. Kantrowitz
  • Patent number: 10881412
    Abstract: Methods and systems for regulating aortic regurgitation during aortic valve replacement or repair procedures utilize a temporary aortic valve (TAV) catheter and a controller. The temporary aortic valve catheter has an expandable occlusion device which can partially occlude the aortic lumen during ventricular diastole with a lesser occlusion during ventricular systole. Exemplary balloon structures include multiple, independently inflatable balloons which are inflated in synchrony with the cardiac cycle by the controller. By controlling aortic regurgitation, the repair or replacement protocols can be conducted with less interference from blood flow.
    Type: Grant
    Filed: September 12, 2018
    Date of Patent: January 5, 2021
    Assignee: HOCOR Cardiovascular Technologies, LLC
    Inventor: Paul C. Ho
  • Patent number: 10864085
    Abstract: Coiled spinal implants for disc, vertebral body, and spinal motion segment replacement or reconstruction comprise a plurality of loops and spaces between the loops, with the loops formed of a hollow material and having a plurality of apertures or a longitudinal gap that extend(s) through the sidewalls of the loops and into the hollow center. The coiled implants include one or more balloons within the hollow center, the spaces between the coil loops, and/or within the central void that the coil surrounds. Filling the balloon expands the loops and thereby increases the height of the coil. Bone graft material or bone cement may be deployed from the apertures or gap.
    Type: Grant
    Filed: January 2, 2018
    Date of Patent: December 15, 2020
    Assignee: DePuy Synthes Products, Inc.
    Inventors: Joern Richter, Jacques Teisen
  • Patent number: 10849521
    Abstract: A catheter is provided with improved position and/or location sensing with the use of single axis sensors that are mounted directly along a length or portion of the catheter whose position/location is of interest. The magnetic based, single axis sensors are provided on a single axis sensor (SAS) assembly, which can be linear or nonlinear as needed. A catheter of the present invention thus includes a catheter body and a distal member of a particular 2D or 3D configuration that is provided by a support member on which at least one, if not at least three single axis sensors, are mounted serially along a length of the support member. In one embodiment, the magnetic-based sensor assembly including at least one coil member that is wrapped on the support member, wherein the coil member is connected via a joint region to a respective cable member adapted to transmit a signal providing location information from the coil member to a mapping and localization system.
    Type: Grant
    Filed: December 23, 2015
    Date of Patent: December 1, 2020
    Assignee: Biosense Webster (Israel) Ltd.
    Inventors: Debby E. Highsmith, Meir Bar-Tal, Ariel Garcia
  • Patent number: 10850077
    Abstract: A user-operable controlled furling balloon assembly including a furlable balloon sheath, an elongate furling driving element which is retractable and rotatable about an elongate axis thereof relative to a base element for furling the furlable balloon sheath about the elongate axis, the furlable balloon sheath surrounding the elongate furling driving element and coupled at a first end thereof to the elongate furling driving element and at a second end thereof to the base element and a furling/retraction controlling assembly coupled to the elongate furling driving element and to the base element for limiting an extent of retraction of the elongate furling driving element to be a function of an extent of furling of the balloon sheath, thereby limiting a maximum outer diameter of the balloon sheath when furled and preventing stacking of the balloon sheath.
    Type: Grant
    Filed: July 23, 2015
    Date of Patent: December 1, 2020
    Assignee: SMART MEDICAL SYSTEMS LTD.
    Inventors: Gad Terliuc, Gilad Luria
  • Patent number: 10842974
    Abstract: Systems and methods and devices are provided for treating conditions such as heart failure and/or pulmonary hypertension by at least partially occluding flow through the superior vena cava for an interval spanning multiple cardiac cycles. A catheter with an occlusion device is provided along with a controller that actuates a drive mechanism to provide at least partial occlusion of the patient's superior vena cava, which reduces cardiac filling pressures, and induces a favorable shift in the patient's Frank-Starling curve towards healthy heart functionality and improved cardiac performance. The occlusion device may include a lumen obstructed by a relief valve that may permit fluid flow through the occlusion device to release an excessive build-up of pressure.
    Type: Grant
    Filed: October 23, 2018
    Date of Patent: November 24, 2020
    Assignee: Tufts Medical Center, Inc.
    Inventors: Navin K. Kapur, Richard H. Karas
  • Patent number: 10806899
    Abstract: Articulation devices, systems, and methods for articulating elongate flexible structures can locally contract a flexible elongate frame or skeleton of an elongate flexible body such as a catheter. Balloons along one side of an axial segment of the elongate flexible body can be inflated so as to help define a resting shape of the elongate body. The skeleton may have pairs of corresponding axially oriented surface regions coupled to each other by a loop of a deformable helical coil structure. Balloons may be between the regions, and the pairs may be separated by an offset that increases when the axis of the skeleton is axially compressed. Inflation of the balloons can axially contract or shorten the skeleton adjacent the balloons so that the elongate body bends toward the balloons.
    Type: Grant
    Filed: February 17, 2017
    Date of Patent: October 20, 2020
    Assignee: Project Moray, Inc.
    Inventors: Keith Phillip Laby, Henry Bourang, Mark D. Barrish
  • Patent number: 10806908
    Abstract: A balloon catheter for treating elongate diseased vessels with a variable diameter, comprising a pre-stretched balloon and a catheter shaft, which forms a wire lumen embodied to guide a guide wire and forms a liquid lumen by which a liquid can be fed to the balloon. The balloon is fastened to a first catheter shaft element at a first, proximal fastening site and fastened to a second catheter shaft element at a second, distal fastening site, wherein the second fastening site is movable along a longitudinal axis of the catheter shaft in relation to the first fastening site. The balloon surrounds a section of the catheter shaft which extends between the first and second fastening sites. Here, the section of the catheter shaft surrounded by the balloon encloses different regions of the catheter shaft with a changing longitudinal extent of the balloon.
    Type: Grant
    Filed: April 16, 2014
    Date of Patent: October 20, 2020
    Assignee: INNORA GMBH
    Inventors: Uli Hanisch, Ulrich Speck
  • Patent number: 10765790
    Abstract: An example pump thrombosis detection system includes a transducer and processing circuitry. The transducer may be configured to generate a signal representative of a mechanical wave from a mechanical circulatory support device. The processing circuitry is communicatively coupled to the transducer. The processing circuitry may be configured to determine an indication of pump thrombosis based on the signal and, based on the indication of pump thrombosis, control the pump thrombosis detection system to at least one of generate an alert or initiate an intervention.
    Type: Grant
    Filed: May 2, 2018
    Date of Patent: September 8, 2020
    Assignee: Medtronic, Inc.
    Inventors: Aleksandre T. Sambelashvili, David A. Anderson, James K. Carney, David M. Steinhaus, Narendra K. Simha
  • Patent number: 10751519
    Abstract: A device for reducing pressure within a lumen includes a reservoir structured for holding a fluid therein, an injection port in fluid communication with the reservoir, a compliant body structured to expand and contract upon changes in pressure, and a conduit extending between and fluidly coupling the reservoir and the compliant body. The fluid may be a compressible or a noncompressible fluid.
    Type: Grant
    Filed: December 1, 2015
    Date of Patent: August 25, 2020
    Assignee: Aria CV, Inc.
    Inventors: John Scandurra, Karl Vollmers
  • Patent number: 10743780
    Abstract: Some embodiments of a balloon catheter device for introduction into a body vessel, in particular the coronary sinus, can include a catheter shaft which carries an inflatable balloon on its distal portion and in which a plurality of different lumens are formed. In particular embodiments, a system for treating heart tissue can include a coronary sinus occlusion catheter configured for improved deliverability to the coronary sinus and for thereafter performing intermittent occlusion of the coronary sinus.
    Type: Grant
    Filed: May 25, 2010
    Date of Patent: August 18, 2020
    Assignee: Miracor Medical SA
    Inventors: Jon H. Hoem, Oliver A. Kohr
  • Patent number: 10743932
    Abstract: A catheter adapted for ablation has multiple dedicated irrigation tubings to supply fluid to their respective electrode or set of electrodes. The tubings provide parallel flow pathways through the catheter where irrigation fluid is delivered to irrigated tip and/or ring electrodes which can accomplish uni-polar or bi-polar ablation. Such separate and dedicated fluid pathways allow fluid to be delivered to the corresponding electrode or set of electrodes at different flow rates. An integrated ablation system using such catheter has an ablation energy source and an irrigation pump with multiple pump heads that can operate independently of each other. An integrated irrigation tubing set is included to extend between the fluid source and the catheter, with each pump head being able to act on a different tubing that delivers fluid to a different electrode or set of electrodes.
    Type: Grant
    Filed: July 28, 2011
    Date of Patent: August 18, 2020
    Assignee: Biosense Webster (Israel) Ltd.
    Inventors: Diana Gallardo, Assaf Govari, Jeffrey W. Schultz, Michael Olen Zirkle
  • Patent number: 10661056
    Abstract: One embodiment provides a support catheter member assembly, preferably for cardiac interventional procedures, comprising an elongated tubular body having proximal and distal ends, and a plurality of lumina extending axially therethrough. A plurality of support members extend through the catheter, exit at a defined distance from its distal opening, and reattach at its distal end. Manipulation of support members leads to their flexing outward/retraction towards the catheter, providing an adjustable support assembly with which the position of a separate guide catheter can be stabilized.
    Type: Grant
    Filed: April 27, 2012
    Date of Patent: May 26, 2020
    Inventor: Christian M. Heesch
  • Patent number: 10549020
    Abstract: A method of operating a counterpulsation device (CPD) in a human or animal subject is disclosed, the method including: receiving a heart beat signal indicative of the heart beat of the subject; providing counterpulsation therapy by controlling the pressure supplied to a CPD drive line in pneumatic communication with the CPD to cause the CPD to alternately fill with blood and eject blood with a timing that is determined at least in part based on the heart beat signal; while providing counterpulsation therapy, receiving a CPD drive line pressure signal indicative of the pressure in the CPD drive line; and adjusting the pressure supplied to the drive line based at least in part on the drive line pressure signal.
    Type: Grant
    Filed: March 16, 2018
    Date of Patent: February 4, 2020
    Assignee: ABIOMED, INC.
    Inventors: Paul Spence, Rob Dowling, Robert T. V. Kung, Thorsten Siess, Eric Gratz, Gerd Spanier
  • Patent number: 10548652
    Abstract: A cryoablation catheter assembly includes a catheter that defines at least one coolant outtake region and receives a rotatable guide tube and a coolant transfer tube. The coolant transfer tube receives and transfers coolant from a coolant source to a distal end of the coolant transfer tube. An expansion element is coupled to a distal portion of the catheter and defines an inner expansion-element space. The inner expansion-element space is in fluid communication with the at least one coolant outtake region and the distal end of the coolant transfer tube. A distal end of the expansion element couples to the guide tube. A rotation system is coupleable to, or coupled to, a proximal end of the guide tube and rotates the distal end of the expansion element relative to the proximal end of the expansion element by rotating the guide tube relative to the catheter.
    Type: Grant
    Filed: August 28, 2017
    Date of Patent: February 4, 2020
    Assignee: BOSTON SCIENTIFIC SCIMED, INC.
    Inventor: Byron Chun
  • Patent number: 10537717
    Abstract: A balloon catheter assembly including an elongate catheter tube including a lumen having a first cross sectional area, a wire extending through the lumen, and an inflatable balloon mountably associated with the tube and the wire, the tube being formed with a plurality of balloon inflation apertures communicating with the lumen, the apertures having a total aperture cross sectional area which exceeds the first cross sectional area and including at least two apertures being arranged at different azimuthal locations along the tube underlying the balloon and the balloon being characterized by an inflated state having a ratio of maximum inflated diameter to length of more than 0.4 and a corresponding deflated state wherein at least a first portion of the balloon is capable of being twisted relative to at least a second portion thereof, resulting in at least partial blockage of at least one but not all of the apertures.
    Type: Grant
    Filed: October 31, 2013
    Date of Patent: January 21, 2020
    Assignee: SMART MEDICAL SYSTEMS LTD
    Inventors: Gad Terliuc, Gilad Luria
  • Patent number: 10507271
    Abstract: The present invention provides an implantable cardiac compression device comprising: an inflatable cardiac compression jacket configured when inflated to directly compress a heart and assist in displacing blood therefrom, a channel that connects the inflatable cardiac compression jacket and an expandable fluid reservoir configured to contain a fluid when displaced compresses the inflatable cardiac compression jacket, and a fluid driver operably connected to the inflatable cardiac compression jacket and to the expandable fluid reservoir, wherein the fluid driver is configured to inflate the cardiac compression jacket and to deflate the expandable fluid reservoir during systole of the heart; said driver is further configured to deflate the cardiac compression jacket and to inflate the expandable fluid reservoir during diastole of the heart.
    Type: Grant
    Filed: June 23, 2017
    Date of Patent: December 17, 2019
    Assignees: CorInnova Incorporated, The Texas A&M University System
    Inventors: John C. Criscione, Boris Leschinsky
  • Patent number: 10485609
    Abstract: An apparatus includes a shaft, an expandable dilator, and a wire assembly. The expandable dilator is located at the distal end of the shaft. The expandable dilator is operable to transition between a non-expanded configuration and an expanded configuration. The wire assembly is disposed about an exterior of the expandable dilator. The proximal end of the wire assembly is proximal to the proximal end of the expandable dilator. The distal end of the wire assembly is distal to the distal end of the dilator. The wire assembly is configured to apply bipolar RF energy to tissue.
    Type: Grant
    Filed: October 18, 2016
    Date of Patent: November 26, 2019
    Assignee: Acclarent, Inc.
    Inventors: Jetmir Palushi, Ketan P. Muni
  • Patent number: 10449040
    Abstract: A method for replacing a patient's native heart valve includes delivering a prosthetic valve at the cardiovascular site from a collapsed delivery configuration to an expanded configuration, testing a performance characteristic of the prosthetic valve, at least partially reversing the deployment of the prosthetic valve, repositioning the prosthetic valve, and re-deploying the prosthetic valve.
    Type: Grant
    Filed: October 19, 2016
    Date of Patent: October 22, 2019
    Assignee: Speyside Medical, LLC
    Inventors: Randall T. Lashinski, Gordon B. Bishop
  • Patent number: 10448940
    Abstract: The present disclosure is directed to a method of facilitating treatment via a vascular wall defining a vascular lumen containing an occlusion therein. The method may include providing an intravascular device having a distal portion and a longitudinal axis and inserting the intravascular device into the vascular lumen. The method may further include positioning the distal portion in the vascular wall, rotating the intravascular device about the longitudinal axis, and advancing the intravascular device within the vascular wall.
    Type: Grant
    Filed: January 16, 2014
    Date of Patent: October 22, 2019
    Assignee: BridgePoint Medical, Inc.
    Inventors: Peter Alan Jacobs, Chad John Kugler, Matthew Jonathan Olson, Ross Arlen Olson, David B. Robinson
  • Patent number: 10441418
    Abstract: An assembly for guiding a medical apparatus within a patient includes an elongated shaft and a balloon affixed to the shaft and movable between a collapsed condition and an expanded condition. A mesh material may be affixed to the shaft and movable between a collapsed condition and an expanded condition. The balloon may project away from the shaft when the balloon is in the expanded condition. The mesh material may project away from the shaft when the mesh material is in the expanded condition.
    Type: Grant
    Filed: October 28, 2016
    Date of Patent: October 15, 2019
    Assignee: St. Jude Medical, Cardiology Division, Inc.
    Inventor: Tracee Eidenschink
  • Patent number: 10369333
    Abstract: A method and apparatus for treatment of heart failure by increasing secretion of endogenous naturetic hormones ANP and BNP such as by stimulation of the heart atria. Heart pacing is done at an atrial contraction rate that is increased and can be higher than the ventricular contraction rate. Pacing may include mechanical distension of the right atrial appendage. An implantable device is used to periodically cyclically stretch the walls of the appendage with an implanted balloon.
    Type: Grant
    Filed: June 5, 2017
    Date of Patent: August 6, 2019
    Assignee: BackBeat Medical, Inc.
    Inventors: Howard Levin, Mark Gelfand
  • Patent number: 10350397
    Abstract: A device for reducing pressure within a lumen includes a reservoir structured for holding a fluid therein, an injection port in fluid communication with the reservoir, a compliant body structured to expand and contract upon changes in pressure, and a conduit extending between and fluidly coupling the reservoir and the compliant body. The fluid may be a compressible or a noncompressible fluid.
    Type: Grant
    Filed: December 1, 2015
    Date of Patent: July 16, 2019
    Assignee: Aria CV, Inc.
    Inventors: John Scandurra, Karl Vollmers
  • Patent number: 10342486
    Abstract: A clip sensor device for optical measuring vital signs of a subject is provided. The clip sensor device includes a internal supporting frame formed from an elongated plate configured to be folded into a desired orientation. A measuring probe is mounted on an upper surface of the frame. The measuring probe comprises a transmitter and receiver and configured for generating a time response of the blood perfused body tissue to the applied optical signal that is indicative of the vital signs of the subject. The clip sensor device also includes a pressing member mounted on the upper surface of the internal supporting frame. The pressing member includes one or more spring elements configured to provide a predetermined pressure on the blood perfused body tissue due to the deformation of the spring elements when said portion of blood perfused body tissue is applied against the pressing member.
    Type: Grant
    Filed: January 12, 2016
    Date of Patent: July 9, 2019
    Assignee: OXIRATE, INC.
    Inventor: Boris Tverskoy
  • Patent number: 10342962
    Abstract: A method of extravaated drug delivery is disclosed, including inserting a catheter with a first balloon, a second balloon, and a third balloon positioned between the first and second balloons and having a wall with an abrasive outer surface, into a bodily cavity, inflating the first and second balloons to create a chamber therebetween, stimulating a flow of blood cells by inflating the third balloon until the abrasive outer surface abrades tissue, and delivering the agent to the chamber. A balloon catheter system is also provided including a balloon having a wall with an abrasive outer surface for abrading tissue, a catheter having a first lumen for supplying fluid to the balloon to inflate the balloon such that the abrasive surface stimulates a flow of blood cells, and a second lumen for supplying an agent to tissue.
    Type: Grant
    Filed: December 13, 2017
    Date of Patent: July 9, 2019
    Assignee: Sanovas Intellectual Property, LLC
    Inventors: Lawrence J. Gerrans, Erhan H. Gunday
  • Patent number: 10258467
    Abstract: A guidewire system may include a guidewire having a relatively stiff proximal section and a relatively flexible distal section joined by a transition region, and a TAVI device slidably disposed on the guidewire. The guidewire may include an expandable element disposed about the transition region. The expandable element may be configured to expand from a collapsed configuration to an expanded configuration. The guidewire may include an expandable element disposed at the distal end. The distal section may be pre-configured to form more than one distal loop. A method of protecting an apex of a left ventricle during a TAVI procedure may include inserting a guidewire into the left ventricle, positioning a transition region adjacent the apex, expanding an expandable element such that the expandable element spans the apex, advancing a TAVI device distally over the guidewire to an aortic valve, and performing a TAVI procedure at the aortic valve.
    Type: Grant
    Filed: December 22, 2016
    Date of Patent: April 16, 2019
    Assignee: Boston Scientific Scimed Inc.
    Inventors: Dongming Hou, John Jianhua Chen, Robert Chang, Takashi H. Ino, Benjamin T. Sutton
  • Patent number: 10195333
    Abstract: A system for perfusing a localized site within a body includes a catheter assembly having a venous access line that is adapted to deliver perfusate to the localized site, a venous or arterial drainage line adapted to drain perfusate from the localized site, and an occlusion device adapted to prevent some or substantially all physiological blood flow between the localized site and the systemic circulation of the body during and in the course of perfusing and draining perfusate to and from the localized site. The system may include a blood circuit associated with the catheter assembly to facilitate blood conditioning for use as the perfusate, in the course of a controlled perfusion and/or drainage of untreated, treated, or inactivated treated blood to and from the localized site.
    Type: Grant
    Filed: February 26, 2016
    Date of Patent: February 5, 2019
    Assignee: NirvaMed, Inc.
    Inventor: Pramote Hochareon
  • Patent number: 10130470
    Abstract: A delivery device (10) for an implantable medical device includes an inner shaft (26) extending in a longitudinal direction and defining a compartment (23) adapted to receive the medical device in an assembled condition, an outer shaft (22) surrounding a longitudinal portion of the inner shaft, and a distal sheath (24) operatively attached to the outer shaft (22). The distal sheath (24) is slidable between a first position enclosing the compartment (23) and a second position exposing the compartment (23) for deployment of the medical device. A sleeve 30 surrounds at least a longitudinal portion of the outer shaft (22) and provides a substantially blood tight bearing surface that facilitates sliding movement of the delivery device (10) in an introducer (2).
    Type: Grant
    Filed: August 17, 2011
    Date of Patent: November 20, 2018
    Assignee: St. Jude Medical, LLC
    Inventors: Ralph Joseph Thomas, Huisun Wang, Jacob John Daly, Thomas A. Savard
  • Patent number: 10130743
    Abstract: Systems, apparatuses, and methods are disclosed for optimizing management of one or more implanted artificial heart pumps. An example method includes wirelessly retrieving, via one or more portable diagnostic devices, data regarding the one or more implanted artificial heart pumps. The example method further includes analyzing, by a server device, performance characteristics of the one or more implanted artificial heart pumps based on the retrieved data. The example method further includes causing rendering of the performance characteristics. Corresponding apparatuses and computer program products are contemplated.
    Type: Grant
    Filed: November 17, 2016
    Date of Patent: November 20, 2018
    Inventor: Dale J. Yeatts
  • Patent number: 10117982
    Abstract: A system for improving heart muscle response during a pre-ejection phase in the heart muscle pumping cycle requires a catheter having a pressure transducer and a fluid device mounted at its distal end. Also included is a pump connected to the proximal end of the catheter in fluid communication with the fluid device. A computer will activate the pump in response to a predetermined signal from the pressure transducer to inject and maintain an increased fluid volume in the pumping chamber of the heart for a predetermined time interval ?t during the pre-ejection phase. This supplements the isometric pressure in the heart's pumping chamber in preparation for a subsequent ejection of blood from the pumping chamber.
    Type: Grant
    Filed: April 15, 2016
    Date of Patent: November 6, 2018
    Assignee: Guy P. Curtis and Frances L. Curtis Trust
    Inventor: Guy P. Curtis
  • Patent number: 10064715
    Abstract: A device (100) for treating a stiffened blood vessel comprises a self-supporting, surgically implantable, elongate casing (101) adapted to extend about and restrain a stiffened portion (2) of the blood vessel. The casing (101) defines an elongate cavity (103) for receipt of the stiffened portion (2) of the blood vessel. The cavity (103) has a transverse cross-section with an aspect ratio of greater than one in an unloaded state. The casing (103) is configured such that, upon application of increasing pressure to the casing (101) from within said cavity (103), the casing (103) elastically deforms such that the aspect ratio decreases towards one and the area of the cross-section increases.
    Type: Grant
    Filed: August 24, 2012
    Date of Patent: September 4, 2018
    Assignee: Aortic Wrap Pty Ltd
    Inventor: Michael O'Rourke
  • Patent number: 10022182
    Abstract: A medical device for renal denervation may include a catheter shaft including an outer shaft having a lumen formed therein and an inner shaft extending within the lumen of the outer shaft. The catheter may further include an expandable member having a proximal region coupled to a distal region of the outer shaft, and a distal region of the expandable member may be coupled to a distal region of the inner shaft. In some embodiments, one or more active electrodes may be disposed on an exterior surface of the expandable member and capable of providing the renal denervation treatment. In some embodiments, the inner shaft may be rotatable in relation to the outer shaft and/or the outer shaft may be rotatable in relation to the inner shaft.
    Type: Grant
    Filed: June 20, 2014
    Date of Patent: July 17, 2018
    Assignee: Boston Scientific Scimed, Inc.
    Inventors: Martin R. Willard, Patrick A. Haverkost, Gary J. Pederson, Jr.
  • Patent number: 9981078
    Abstract: A left ventricular assist device includes an outer tube, which includes a ventricle section located in the left ventricle and an artery section located in the aorta, the ventricle section is provided with first suction meshes, and the artery section is provided with first discharge meshes, and the outer tube is in communication with an external drive device; a ventricular-side suction component provided in the ventricle section; and a discharge-section balloon catheter, is provided with second discharge meshes, and the second discharge meshes and the first discharge meshes are arranged to be staggered and not overlapped. With the suction and inflating of the external drive device, blood is sucked into the outer tube from the left ventricle by the ventricular-side suction component, and forced out of the outer tube into the aorta by the discharge-section balloon catheter, to pump blood in the left ventricle into the aorta.
    Type: Grant
    Filed: September 28, 2014
    Date of Patent: May 29, 2018
    Assignees: APT MEDICAL HUNAN INC
    Inventors: Lijun Jin, Zhenghui Cheng, Shiping Yan
  • Patent number: 9919135
    Abstract: The present invention provides a sheath for gastrostoma (1), a sheathed dilator, a gastrostomy catheter kit and a method of splitting a sheath for gastrostoma. The sheath for gastrostoma (1) includes a sheath body (11) in which a gastrostomy catheter (2) is inserted and a handle (12). The sheath for gastrostoma (1) lowers the insertion resistance of a gastrostomy catheter when inserted in a fistula before insertion of the gastrostomy catheter in the fistula for replacement in the patient's body. According to the invention, a sheath for gastrostoma, a sheathed dilator, a sheath for gastrostoma with insertion aid, a gastrostomy catheter kit and a method of splitting a sheath for gastrostoma which can lower the insertion resistance during placement of a catheter in the patient's body, facilitate air supply control of an endoscope and stabilize endoscopic visual field during surgery are provided.
    Type: Grant
    Filed: February 9, 2015
    Date of Patent: March 20, 2018
    Assignees: SUMITOMO BAKELITE CO., LTD.
    Inventors: Yutaka Suzuki, Hideaki Matsunami, Yukihiko Sakaguchi, Masao Ikeda, Tomokazu Nakayama, Keiji Kamada, Ryo Tanaka
  • Patent number: 9889015
    Abstract: Coiled spinal implants for disc, vertebral body, and spinal motion segment replacement or reconstruction comprise a plurality of loops and spaces between the loops, with the loops formed of a hollow material and having a plurality of apertures or a longitudinal gap that extend(s) through the sidewalls of the loops and into the hollow center. The coiled implants include one or more balloons within the hollow center, the spaces between the coil loops, and/or within the central void that the coil surrounds. Filling the balloon expands the loops and thereby increases the height of the coil. Bone graft material or bone cement may be deployed from the apertures or gap.
    Type: Grant
    Filed: May 10, 2016
    Date of Patent: February 13, 2018
    Assignee: DePuy Synthes Products, Inc.
    Inventors: Joern Richter, Jacques Teisen
  • Patent number: 9877666
    Abstract: In a method, system and device for treating aneurysm a member is placed around the aneurysm, the aneurysm can be treated and monitored. The member can comprise a sensor placed in relation to a wall portion of the aneurysm for generating a signal corresponding to a parameter related to the aneurysm or the treatment of the aneurism. For example the size of the aneurysm such as the diameter of the aneurysm can be monitored. Hereby changes in the aneurism can be detected and information about the changes of the aneurysm can be used when determining how to treat the aneurysm.
    Type: Grant
    Filed: October 10, 2008
    Date of Patent: January 30, 2018
    Inventor: Peter Forsell
  • Patent number: 9839543
    Abstract: A multistage balloon catheter that uses a single lumen to inflate a balloon in stages is disclosed. A fluid port provides fluid communication from an inflation lumen in the balloon catheter to the inner volume of a distal balloon. The distal balloon expands as fluid in delivered to the inner volume of the distal balloon. Once inflated, the pressure continues to rise until a threshold pressure is exceeded. A pressure sensitive inflation valve provides fluid communication into an inner volume of a second balloon disposed at least partially proximal to the distal balloon. The pressure sensitive valve allows fluid communication into the second balloon once the threshold pressure is reached in the first balloon thereby inflating the second balloon.
    Type: Grant
    Filed: March 14, 2014
    Date of Patent: December 12, 2017
    Assignee: COOK MEDICAL TECHNOLOGIES LLC
    Inventors: Nathan Ridgley, Lindsay Koren
  • Patent number: 9821148
    Abstract: A balloon catheter includes a catheter tube and an inflatable balloon. The ends of the balloon are attached to the catheter tube. The outside surface of the balloon in an uninflated state is provided with a relief structure which in an inflated state of the balloon is substantially disappeared. A method for producing such a relief structure is by winding a wire helically around the outer surface of the balloon.
    Type: Grant
    Filed: December 26, 2014
    Date of Patent: November 21, 2017
    Assignee: C.R. BARD, INC.
    Inventor: Hendrik Jozef Maria Meens
  • Patent number: 9782572
    Abstract: Systems, apparatus and methods are disclosed for medical treatment comprising bone access and dilatation and/or cavity creation or enlargement using a narrow gauge, preferably 11-gauge or smaller, cannula wherein a catheter/expandable element assembly meeting medical protocols for such procedures is designed, adapted and fabricated to fit through the interior of the associated 11-gauge or smaller cannula, and further including apparatus and methods for wrapping and/or folding the expandable element either before or after a procedure to reduce its profile to fit through the cannula.
    Type: Grant
    Filed: March 13, 2013
    Date of Patent: October 10, 2017
    Assignee: Nordson Corporation
    Inventors: Mark A. Saab, Michael D. Barbere
  • Patent number: 9775941
    Abstract: A hemodialysis catheter with an integrated means of displacing away from each other portions of a distal end of a tube assembly. The displacement serves to allow a fibrous sheath to be disrupted without removing the catheter from a patient.
    Type: Grant
    Filed: December 12, 2011
    Date of Patent: October 3, 2017
    Assignee: BOARD OF REGENTS OF THE UNIVERSITY OF NEB
    Inventor: Marius C. Florescu
  • Patent number: 9744282
    Abstract: Embodiments of the invention provide a left ventricular assist device (LVAD) cannula that includes multiple independent sensors may help decrease the incidence of ventricular collapse and provide automatic speed control. A cannula may include two or more independent sensors. One sensor may measure ventricular pressure, while another may measure ventricular volume and/or ventricular wall location. With this information an automatic control system may be configured to adjust pump speed to minimize the likelihood of ventricular collapse and maximize LVAD flow in response to physiologic demand. Typically the volume sensors are conductance sensors. Further embodiments provide LVADs that are powered by RF energy.
    Type: Grant
    Filed: January 4, 2017
    Date of Patent: August 29, 2017
    Assignee: The Penn State Research Foundation
    Inventors: Gerson Rosenberg, Joshua P. Cysyk, William J. Weiss, Raymond K. Newswanger
  • Patent number: 9730746
    Abstract: A medical balloon device includes an outer member extending along an axis. An inflatable member has a proximal end extending from a first end of the outer member and a distal end. An inner member is positioned within the outer member and the inflatable member such that a first end of the inner member is coupled to the distal end of the inflatable member. A support member is movably disposed within the inner member and includes a first end configured to removably engage the first end of the inner member. Translation of the support member along the axis causes the inflatable member to move between a first position in which the inflatable member has a first length and a first profile and a second position in which the inflatable member has a second reduced length and a second reduced profile. Methods of use are disclosed.
    Type: Grant
    Filed: March 15, 2013
    Date of Patent: August 15, 2017
    Assignee: Kyphon SÀRL
    Inventors: Bryan J. Auyoung, Warren C. Sapida
  • Patent number: 9717830
    Abstract: A system and method of drawing blood from the heart of a patient. The system includes a blood pump, an outflow cannula, and a flexible cannula assembly. The flexible cannula assembly includes a cannula body, a tip, and first and second anchors. The cannula body includes a proximal end coupled to the inlet of the blood pump, a distal end including a first locking element coupled to the tip. The first anchor has a first plurality of arms and is coupled to the tip and adapted to engage the internal surface of the heart wall. The second anchor includes a second plurality of arms and a second locking element and is slidably positioned on the outer wall of the cannula body and adapted to engage the first locking element of the distal end of the cannula body to couple the second anchor to the external surface of the heart wall.
    Type: Grant
    Filed: October 28, 2015
    Date of Patent: August 1, 2017
    Assignee: CircuLite, Inc.
    Inventor: Robert C. Farnan
  • Patent number: 9713662
    Abstract: Embodiments of the invention provide a left ventricular assist device (LVAD) cannula that includes multiple independent sensors may help decrease the incidence of ventricular collapse and provide automatic speed control. A cannula may include two or more independent sensors. One sensor may measure ventricular pressure, while another may measure ventricular volume and/or ventricular wall location. With this information an automatic control system may be configured to adjust pump speed to minimize the likelihood of ventricular collapse and maximize LVAD flow in response to physiologic demand. Typically the volume sensors are conductance sensors. Further embodiments provide LVADs that are powered by RF energy.
    Type: Grant
    Filed: December 2, 2013
    Date of Patent: July 25, 2017
    Assignee: The Penn State Research Foundation
    Inventors: Gerson Rosenberg, Joshua P. Cysyk, William J. Weiss, Raymond K. Newswanger
  • Patent number: 9707414
    Abstract: Apparatus comprising a reflection-facilitation element, which is disposed in the pericardial cavity of a subject and on a first side of a tissue of the subject. The reflection-facilitation element comprises an inflatable member, having a first side and a second side, and configured to be inflated while disposed in the pericardial cavity, and a plurality of electrodes, comprising at least a first electrode and a second electrode, the first electrode being disposed on the first side of the inflatable member. The apparatus further comprises an ultrasound transducer placed on a second side of the tissue of the subject, and configured to apply ultrasound energy to the tissue of the subject such that at least a portion of the energy reaches the inflatable member. The inflatable member reflects at least a portion of the ultrasound energy that reaches the inflatable member.
    Type: Grant
    Filed: August 21, 2015
    Date of Patent: July 18, 2017
    Assignee: RAINBOW MEDICAL LTD.
    Inventors: Michael Kardosh, Amir Kishon, Navot Rabban, Gilad Magnazi, Yossi Gross
  • Patent number: 9694122
    Abstract: An implantable aortic blood pump includes a rigid body having wall extending along a long axis and defining an inflation port portion with an inflation aperture therethrough. The aperture is fluid communication with an inner surface of the body and on a fluid supply, the body is preferably independent of an external brace or an external stiffener, yet still has a cantilevered deformation of less than 8 millimeters in response to a 200 gram weight suspended from a front body edge. A deflecting structure of a membrane deflects in response to fluid pressure so as to pump blood when the pump is secured to a subject aorta.
    Type: Grant
    Filed: May 13, 2014
    Date of Patent: July 4, 2017
    Assignee: L-VAD Technology, Inc.
    Inventors: Robert M Smith, Adrian Kantrowitz, Valluvan Jeevanandam, Allen B. Kantrowitz, Paul S. Freed
  • Patent number: 9655555
    Abstract: Foley type catheter embodiments for sensing physiologic data from a urinary tract of a patient are disclosed. The system includes the catheter and a data processing apparatus and methods for sensing physiologic data from the urinary tract. Embodiments may also include a pressure sensor having a pressure interface at a distal end of the catheter, a pressure transducer at a proximal, and a fluid column disposed between the pressure interface and transducer. When the distal end is residing in the bladder, the pressure transducer can transduce pressure impinging on it into a chronological pressure profile, which can be processed by the data processing apparatus into one or more distinct physiologic pressure profiles, for example, peritoneal pressure, respiratory rate, and cardiac rate. At a sufficiently high data-sampling rate, these physiologic data may further include relative pulmonary tidal volume, cardiac output, relative cardiac output, and absolute cardiac stroke volume.
    Type: Grant
    Filed: March 7, 2012
    Date of Patent: May 23, 2017
    Assignee: Potrero Medical, Inc.
    Inventors: Daniel R. Burnett, Greg Lee, Richard W. O'Connor, Brett Mensh
  • Patent number: 9616158
    Abstract: Various blood pumps and methods of manufacture therefor are disclosed. An embodiment of a blood pump comprises a blood-flow lumen having an inlet and an outlet, and a rotor within the blood-flow lumen, the rotor having an impeller for pumping blood through the blood pump. A motor is also provided including a plurality of magnetic poles carried by the rotor, and a stator including a plurality of electrically conductive coils adjacent to and at least partially surrounding the blood-flow lumen. An over-molded monolithic enclosure covers the stator, the enclosure at least partially sealingly enclosing the stator and encasing the blood-flow lumen.
    Type: Grant
    Filed: December 4, 2014
    Date of Patent: April 11, 2017
    Assignee: HeartWare, Inc.
    Inventor: Raffy Yaghdjian
  • Patent number: 9610428
    Abstract: Devices, systems and methods wherein a dilator, such as a balloon or other expandable member, is positionable within the frontal sinus ostium and adjacent frontal recess and useable to dilate the frontal sinus ostium and substantially all of the frontal sinus recess without requiring repositioning and repeated re-expansion of the dilator. One balloon catheter device of the invention comprises a catheter body that is less than about 50 cm in length (and in some embodiments less than 25 cm in length and a semi-compliant or non-compliant balloon on the catheter body. The balloon may have a working length of about 12 mm to about 30 mm and a width at its widest point when fully inflated of about 2 mm to about 7 mm. Such balloon may be constructed to withstand inflation pressures of about 12 atmospheres. In some embodiments, the dilator is advanced through or over a guide (e.g., guidewire or guide catheter) that has a preformed shape.
    Type: Grant
    Filed: October 16, 2014
    Date of Patent: April 4, 2017
    Assignee: Acclarent, Inc.
    Inventors: Ketan P. Muni, Carlos F. Fernandez, Joshua Makower, John Y. Chang, William M. Facteau