Providing Varying Degrees Of Flexibility Along Longitudinal Axis Patents (Class 604/525)
  • Patent number: 11400254
    Abstract: A microcatheter includes an inner polymeric tube defining an inner lumen. It includes a proximal section with an inner wire layer helically wound in a constricted state over the inner polymeric tube and includes an outer wire layer helically wound over the inner wire layer in a constricted state within the proximal section. It includes a distal section with a distal wire layer helically wound in a constricted state and having an outer diameter. The proximal and distal sections are joined. The outer diameter of the outer wire layer is substantially the same as the outer diameter of distal wire layer at the location where the proximal and distal sections are joined.
    Type: Grant
    Filed: October 24, 2018
    Date of Patent: August 2, 2022
    Assignee: Heraeus Medical Components LLC
    Inventors: Troy White, Joseph Kempf, Dustin Andrist, Jacob Markham, Victoria K. Sandberg
  • Patent number: 11382663
    Abstract: A retrieval system for a biostimulator, such as a leadless cardiac pacemaker, is described. The biostimulator retrieval system includes a docking cap rotatably coupled to an outer catheter by a bearing. A torque shaft extends through the outer catheter and attaches to the docking cap to transmit torque to the docking cap to cause rotation of the docking cap relative to the outer catheter. The rotating docking cap can transmit torque to an attachment feature of a biostimulator received within the docking cap. The attachment feature can be captured by a snare that extends through the torque shaft. A cincher tube extends through the torque shaft around the snare, and advances over the snare independently from the torque shaft that is attached to the docking cap, to cinch the snare onto the attachment feature. Other embodiments are also described and claimed.
    Type: Grant
    Filed: June 24, 2019
    Date of Patent: July 12, 2022
    Assignee: PACESETTER, INC.
    Inventors: David Rickheim, Daniel Coyle, Adam Weber
  • Patent number: 11324929
    Abstract: Guidewires having conductive elements are described where in one variation, the guidewire may be formed by disposing an insulative layer upon a surface of the guidewire core, and printing one or more conductive traces directly upon a surface of the insulative layer.
    Type: Grant
    Filed: July 19, 2017
    Date of Patent: May 10, 2022
    Assignee: PATHWAYS MEDICAL CORPORATION
    Inventors: Nitin Patil, Philip R. Houle
  • Patent number: 11291799
    Abstract: An interventional catheter for treating an artery includes an elongated body sized and shaped to be transcervically introduced into a common carotid artery at an access location in the neck. The elongated body has an overall length such that the distal most section can be positioned in an intracranial artery and at least a portion of the proximal most section is positioned in the common carotid artery during use.
    Type: Grant
    Filed: August 19, 2019
    Date of Patent: April 5, 2022
    Assignee: Silk Road Medical, Inc.
    Inventors: Michi E. Garrison, Scott D. Wilson
  • Patent number: 11253364
    Abstract: Devices, systems and methods are described herein to provide improved steerability for delivering a prosthesis to a body location, for example, for delivering a replacement mitral valve to a native mitral valve location. A delivery component can have a plurality of slots that provide for desired bending of the delivery component, particularly compound bending of the delivery component that can facilitate steering of the delivery component in three dimensions.
    Type: Grant
    Filed: June 20, 2019
    Date of Patent: February 22, 2022
    Assignee: Edwards Lifesciences CardiAQ LLC
    Inventors: Alexander H. Cooper, David Robert Landon, Julio Cesar Sanchez, Glen T. Rabito, J. Brent Ratz, Arshad Quadri, Kevin M. Stewart, Patrick Chow
  • Patent number: 11173279
    Abstract: A microcatheter is characterized as having a hardness-transition section along an entire or partial length an outer layer, hardness of the outer layer varying in the hardness-transition section so as to increase from the distal tip to the proximal tip along the lengthwise direction, due to arrangement of a second forming material in a stripe pattern extending in the lengthwise direction of the outer layer in the first forming material including a forming material formable into the outer layer so that a surface area ratio of the two forming materials in a circumferential direction of a cross section varies along the lengthwise direction for the first forming material and the second forming material.
    Type: Grant
    Filed: April 24, 2017
    Date of Patent: November 16, 2021
    Inventor: Hidetaka Wada
  • Patent number: 11160952
    Abstract: Catheters and methods for supporting a guidewire or delivering a radiopaque, diagnostic or therapeutic agent through a vessel stenosis or other tortuous anatomy are disclosed. A catheter can comprise an elongate shaft body and a tip member disposed at a distal end of the shaft body. The shaft body can extend from a proximal end to the distal end and can define an inner lumen. The shaft body can include a liner, a braid member surrounding the liner, a multi-layer coil surrounding the braid member, and a polymer cover surrounding the multi-layer coil. An outer surface portion of the polymer cover can include one or more helical threads, which can be enveloped in an outer wrapper. The tip member can be made from a metal or a polymer. Polymer tip members can include a hard or semi-hard distal tip.
    Type: Grant
    Filed: February 4, 2019
    Date of Patent: November 2, 2021
    Assignee: Teleflex Life Sciences Limited
    Inventors: John Bridgeman, Daniel Jindra, Peter Bo
  • Patent number: 11141141
    Abstract: A device comprises a tubular member with a longitudinal axis having a proximal end and a distal end, at least one partial cut located at, along or near the distal end of the tubular member, the at least one partial cut comprising an orientation that is angled relative to both the longitudinal axis and an axis transverse to the longitudinal axis, a pusher member positioned within an interior of the tubular member and configured to selectively advance the distal end of the tubular member longitudinally, wherein the distal end of the tubular member is configured to at least partially rotate when the pusher member is advanced relative to the tubular member so at to facilitate placement of the distal end in a particular branch of a subject's intraluminal network, wherein the distal end of the tubular member is configured to longitudinally elongate along or near an area of the at least one partial cut.
    Type: Grant
    Filed: November 15, 2018
    Date of Patent: October 12, 2021
    Assignee: MicroNovus, LLC
    Inventor: Brian Giles
  • Patent number: 10960180
    Abstract: A method of manufacturing a catheter shaft includes the steps of forming an inner layer of a first polymeric material, forming a plait matrix layer including a second polymeric material about the inner layer, and forming an outer layer of a third polymeric material about the plait matrix layer. The plait matrix layer includes a braided wire mesh partially or fully embedded within the second polymeric material, which is different from at least one of the first polymeric material forming the inner layer and the third polymeric material forming the outer layer. The second polymeric material has a higher yield strain and/or a lower hardness than at least the first polymeric material, and preferably both the first and the third polymeric materials. The first polymeric material and the third polymeric material may be different or the same. The catheter shaft may be formed by stepwise extrusion, co-extrusion, and/or reflow processes.
    Type: Grant
    Filed: April 26, 2018
    Date of Patent: March 30, 2021
    Assignee: St. Jude Medical, Atrial Fibrillation Division, Inc.
    Inventors: Xiaoping Guo, Richard E. Stehr
  • Patent number: 10953195
    Abstract: A catheter may include an inner liner, at least one support structure over the inner liner, and an outer jacket over the at least one support structure. In some examples, the catheter includes a tip jacket positioned over a distal portion of the outer jacket and extend beyond a distal-most part of the inner liner and a distal-most part of the outer jacket to define a single-layer catheter tip. In some examples, the at least one support structure may include a braid and a coil. The catheter may include a marker band over a distal portion of one of the braid or the coil. The other of the braid or the coil ends proximally of a proximal end of the marker band, such that the catheter includes a location with lower radial and/or flexural stiffness proximal of the marker band.
    Type: Grant
    Filed: June 1, 2018
    Date of Patent: March 23, 2021
    Assignee: Covidien LP
    Inventors: Ujwal Jalgaonkar, Syamala Rani Pulugurtha, Edwin Bon, Eric Mintz
  • Patent number: 10786650
    Abstract: A vascular access device is disclosed including a catheter, a catheter adapter having a distal end and a proximal end, an overall length extending from the distal end to the proximal end, an internal cavity, an upper portion, a lower portion and a tip having a distal opening having a circumference through which the catheter extends, an introducer needle extending through the catheter; and a needle hub connected to the proximal end of the introducer needle. The catheter adapter being connected to the proximal end of the catheter and at least a majority of the catheter adapter is made from a first material and at least a portion of the tip is made from a second material that is more flexible than the first material.
    Type: Grant
    Filed: October 5, 2016
    Date of Patent: September 29, 2020
    Assignee: Becton, Dickinson and Company
    Inventors: Jonathan Karl Burkholz, Troy Atkin
  • Patent number: 10751507
    Abstract: A catheter comprises a heater control supplying power, a handle, a base catheter with lumen and comprising a proximal section and a distal segment, and a variable stiffness element. The element comprises a heater connected to the heater control, coiled at least at the distal segment, and comprising a shaft portion of a first metallic conductive material and a heater portion of a second metallic conductive material. A jacket is disposed about the heater portion. A variable flex sub-assembly between the catheter and jacket comprises a non-conducting braid and a binding material. Without power, the binding material is stiffened. Responsive to heating of the binding material, the binding material softens to increase flexibility of the variable flex sub-assembly at least at the distal segment. Responsive to removing power, the binding material cools and stiffens to decrease flexibility of the variable flex sub-assembly at least at the distal segment.
    Type: Grant
    Filed: April 6, 2018
    Date of Patent: August 25, 2020
    Assignee: SYN VARIFLEX, LLC
    Inventors: Matthew A. Palmer, Thomas O. Bales, Jr., Tyler Bond, Eric Petersen, Derek Dee Deville, William T. Bales, Matthew Weger
  • Patent number: 10610666
    Abstract: In some examples, a catheter includes an elongated body including a structural support layer comprising at least two filaments of different materials wound longitudinally adjacent to each other to define a coil structure, and an outer jacket positioned over the structural support layer.
    Type: Grant
    Filed: December 28, 2015
    Date of Patent: April 7, 2020
    Assignee: Covidien LP
    Inventor: George Stern
  • Patent number: 10569049
    Abstract: A system of devices for treating an artery includes an arterial access sheath adapted tointroduce an interventional catheter into an artery and an elongated dilator positionable within the internal lumen of the sheath body. The system also includes a catheter formed of an elongated catheter body sized and shaped to be introduced via a carotid artery access site into a common carotid artery through the internal lumen of the arterial access sheath. The catheter has an overall length and a distal most section length such that the distal most section can be positioned in an intracranial artery and at least a portion of the proximal most section is positioned in the common carotid artery during use.
    Type: Grant
    Filed: June 16, 2017
    Date of Patent: February 25, 2020
    Assignee: Route 92 Medical, Inc.
    Inventors: Michi E. Garrison, Tony M. Chou
  • Patent number: 10561818
    Abstract: A pre-curved steerable catheter includes a catheter body (102) having a distal end portion. The distal end portion includes a permanently curved flexible end portion (110). A pull wire (108) is disposed in a pull wire lumen within the catheter body. The pull wire extends from the distal end portion to a proximal end portion of the catheter body wherein the pull wire, when tensioned, provides a change in an angle of the curved flexible end portion of the catheter body.
    Type: Grant
    Filed: November 20, 2015
    Date of Patent: February 18, 2020
    Assignee: Koninklijke Philips N.V.
    Inventors: Gregory Cole, Hao Su, Vijay Parthasarathy, Rex Yung
  • Patent number: 10512753
    Abstract: A medical device includes an elongate shaft including a multifilar coil comprising a first strand and a second strand wound in the same winding direction, the multifilar coil comprising a first section having a first end and a second end wherein the first strand and the second strand are wound with identical pitch patterns between the first end and the second end of the first section, the multifilar coil further comprising a second section having a first end and a second end, wherein the first strand and the second strand are wound with different pitch patterns from each other between the first end and second end of the second section, and a polymeric tubular member coextending with the multifilar coil.
    Type: Grant
    Filed: December 7, 2018
    Date of Patent: December 24, 2019
    Inventor: John Nguyen
  • Patent number: 10493241
    Abstract: Methods and apparatuses for detecting tension on a tendon and/or mechanical deformation (e.g., breakage) of one or more steering tendon of a steerable and flexible articulating device. Theses apparatuses may have one or more tendons that are each electrically conductive and configured to steer the apparatus when tension is applied to the proximal end of the tendon. Tension and/or breakage (or other deformation) of one or more of these tendons may be detected by monitoring the electrical resistance of the tendons.
    Type: Grant
    Filed: July 26, 2017
    Date of Patent: December 3, 2019
    Assignee: Auris Health, Inc.
    Inventor: Allen Jiang
  • Patent number: 10471233
    Abstract: A system of devices for treating an artery includes an arterial access sheath adapted to introduce an interventional catheter into an artery and an elongated dilator positionable within the internal lumen of the sheath body. The system also includes a catheter formed of an elongated catheter body sized and shaped to be introduced via a carotid artery access site into a common carotid artery through the internal lumen of the arterial access sheath. The catheter has an overall length and a distal most section length such that the distal most section can be positioned in an intracranial artery and at least a portion of the proximal most section is positioned in the common carotid artery during use.
    Type: Grant
    Filed: February 6, 2017
    Date of Patent: November 12, 2019
    Assignee: Route 92 Medical, Inc.
    Inventors: Michi E. Garrison, Tony M. Chou
  • Patent number: 10441193
    Abstract: A catheter configured for use with a magnetic field-based localization system includes a distributed location sensor that includes a plurality of individual location sensing coils electrically connected in series. The distributed location sensor has an effective magnetic center based on the individual characteristics of each location sensing coil. The effective magnetic center can be located in a space occupied by another structure such as an irrigation fluid delivery tube. The plurality of individual location sensing coils are generally smaller, thereby easing placement, and collectively, when connected in series, output a relatively strong and noise-free signal.
    Type: Grant
    Filed: October 13, 2016
    Date of Patent: October 15, 2019
    Assignee: St. Jude Medical International Holding S.à r.l.
    Inventor: Itay M. Kariv
  • Patent number: 10426921
    Abstract: Medical devices such as catheters can include structure or provision that permit a physician or other health care professional to adjust the stiffness of at least a portion of the medical device. In some instances, the medical device may be adjusted prior to inserting the medical device into a patient. In some cases, the medical device may be adjusted while in use within the patient.
    Type: Grant
    Filed: April 11, 2017
    Date of Patent: October 1, 2019
    Assignee: BOSTON SCIENTIFIC SCIMED, INC.
    Inventors: Daniel J. Gregorich, Soo-Young Yoon, Michael P. Meyer, Liza J. Davis
  • Patent number: 10384034
    Abstract: An interventional catheter for treating an artery includes an elongated body sized and shaped to be transcervically introduced into a common carotid artery at an access location in the neck. The elongated body has an overall length such that the distal most section can be positioned in an intracranial artery and at least a portion of the proximal most section is positioned in the common carotid artery during use.
    Type: Grant
    Filed: October 10, 2017
    Date of Patent: August 20, 2019
    Assignee: Silk Road Medical, Inc.
    Inventors: Michi E. Garrison, Scott D. Wilson
  • Patent number: 10279153
    Abstract: A supportive balloon catheter which may be used to assist a wire guide in advancing across a lesion which partially or totally occludes an intraluminal passage. The supportive balloon catheter is advanced over the wire guide, close to the location of the lesion. The supportive balloon catheter is then inflated, securing the position of the wire guide in the intraluminal passage. A braid on the catheter may provide additional structural support. The secured catheter restricts the movement of the wire guide advancing across the lesion, preventing kinking or deflection off the surface of the lesion. Once the wire guide has advanced across the lesion, the supportive balloon catheter or a different angioplasty may be used to clear the lesion from the intraluminal passage.
    Type: Grant
    Filed: July 23, 2015
    Date of Patent: May 7, 2019
    Assignee: Cook Medical Technologies LLC
    Inventors: David Christian Lentz, Anders Bro, Katrine Birch Rasmussen
  • Patent number: 10226277
    Abstract: Described here are devices and methods for performing atherectomies. Generally, the atherectomy devices may comprise a handle, a cutter assembly, and a catheter or catheter assembly therebetween. The cutter assembly may include a cutter housing and a cutter comprising a first cutting element and a second cutting element, each of which may be rotated relative to the atherectomy device to cut occlusive material.
    Type: Grant
    Filed: April 26, 2016
    Date of Patent: March 12, 2019
    Assignee: ATHEROMED, INC.
    Inventors: Torrey Smith, Douglas E. Rowe, August Christopher Pombo, Paul Quentin Escudero, Christopher J. Danek, John T. To
  • Patent number: 10105522
    Abstract: A medical balloon is made radiographic, such as by incorporating a radiopaque foil or film layer. The radiopaque foil or film layer may be placed between an inner layer and an outer layer of a non-compliant balloon wall. The foil or film may provide the balloon with a radiographic quality from a first end to a second end in the absence of an inflation fluid. The balloon may be provided with the foil or film in a manner that provides a first section, such as the barrel, with a first radiographic quality, and a second section, such as the cone, with a second radiographic quality. The film may also be applied as a decal or appliqué to the external surface of a balloon-shaped body. Related methods are also disclosed.
    Type: Grant
    Filed: June 4, 2012
    Date of Patent: October 23, 2018
    Assignee: C.R. BARD, INC.
    Inventors: Richard K. Elton, Corey E. Stapleton
  • Patent number: 10099040
    Abstract: In some embodiments, an apparatus includes a first catheter movably disposed within a first lumen of a second catheter. The first catheter has a first occlusion member disposed at a distal end portion and the second catheter has a second occlusion member disposed at a distal end portion. A third catheter has a third occlusion member disposed at a distal end portion and is moveably disposable within a second lumen of the second catheter. The second catheter has a side port in fluid communication with the second lumen and the third catheter can be extended out of the second lumen through the side port. The first occlusion member, second occlusion member and third occlusion member can collectively isolate a target region including a portion of a first body lumen (e.g., a main vessel) and a portion of a second body lumen (e.g., a branch of the main vessel).
    Type: Grant
    Filed: December 3, 2015
    Date of Patent: October 16, 2018
    Assignee: RenovoRx, Inc.
    Inventors: Ramtin Agah, Kamran Najmabadi, Shaun R. Bagai, Reza Malek
  • Patent number: 9993265
    Abstract: A percuscopic access device is disclosed. The percuscopic access device has a hollow shaft with a proximal opening and a distal opening. The percuscopic access device also has one or more barrier ridges on the outside of the hollow shaft. The percuscopic access device also has one or more recesses on the inside of the hollow shaft and in communication with the distal opening. A cleaning obturator for use with the percuscopic access device is also disclosed. The cleaning obturator and percuscopic access device may be combined as a surgical apparatus. The cleaning obturator has a guide rod having a proximal end and a distal end. The cleaning obturator also has a plugging tip on the distal end. The cleaning obturator further has one or more swab guides proximal to the plugging tip.
    Type: Grant
    Filed: December 1, 2016
    Date of Patent: June 12, 2018
    Assignee: LSI Solutions, Inc.
    Inventors: Jude S. Sauer, Angelo John Martellaro
  • Patent number: 9913753
    Abstract: The present invention provides a lacrimal duct tube that can be preferably used for the treatment of lacrimal duct obstruction, in particular, sheath guided endoscopic probing having been frequently performed in recent years, the lacrimal duct tube being excellent in passage through a lesion in the lacrimal duct, operability in the lacrimal duct, and manipulation of the endoscope inserted into the lumen of the tube, and providing a sufficient viewing field of the endoscope. The present invention relates to a lacrimal duct tube, including: a pair of tubular members that each has an opening at one end and a hole in a side wall communicating with a lumen; and a connection member that connects other ends of the tubular members, wherein the tubular members each include a plurality of resin portions different in Shore hardness, at least one of the resin portions is positioned between the opening and the hole and forms a lumen wall of the tubular member, and the lumen wall has a Shore hardness of 57D or more.
    Type: Grant
    Filed: July 31, 2013
    Date of Patent: March 13, 2018
    Assignee: KANEKA CORPORATION
    Inventors: Kohei Fukaya, Hidekazu Miyauchi, Mariko Matsumoto, Eiji Ogino, Chihiro Koga
  • Patent number: 9681876
    Abstract: The present disclosure describes an occlusion device and methods of delivering the occlusion device. The occlusion device can include an expandable structure configured to move between an unexpanded configuration and an expanded configuration. The expandable structure can be configured to have an expansion ratio of at least about 5:1. Further, the occlusion device can be configured to prevent substantially all fluid from flowing past the occlusion device when the occlusion device is in the expanded configuration in the vessel.
    Type: Grant
    Filed: July 31, 2014
    Date of Patent: June 20, 2017
    Assignee: Emba Medical Limited
    Inventors: Andrew H. Cragg, John Logan, Brett E. Naglreiter, Scott R. Arp, Alejandro Espinosa, Nicholas A. Green, Victor M. Gamez
  • Patent number: 9555215
    Abstract: A turbulator for promoting mixing of fluids passing through a body lumen includes an elongate flow perturbing component and an elongate shape controlling component freely slidable within the flow perturbing component. The turbulator is adjustable from a low profile, lumen access configuration to a deployed configuration via sliding the shape controlling component within the flow perturbing component. Adjusting the turbulator within a body lumen of a patient induces turbulence within a flow of fluid passing through the body lumen to increase mixing of a treatment fluid with the body fluid by way of the induced turbulence.
    Type: Grant
    Filed: November 12, 2015
    Date of Patent: January 31, 2017
    Assignee: Cook Medical Technologies LLC
    Inventors: James R. Randolph, Thomas A. Osborne
  • Patent number: 9492264
    Abstract: Single filter and multi-filter endolumenal methods and systems for filtering fluids within the body. In some embodiments a blood filtering system captures and removes particulates dislodged or generated during a surgical procedure and circulating in a patient's vasculature. In some embodiments a filter system protects the cerebral vasculature during a cardiac valve repair or replacement procedure.
    Type: Grant
    Filed: December 28, 2011
    Date of Patent: November 15, 2016
    Assignee: Claret Medical, Inc.
    Inventors: Daniel W. Fifer, Randall T. Lashinski, Antony J. Fields, Michael Lee
  • Patent number: 9446219
    Abstract: This invention is a multipolar or multi-conductor guidewire which can be navigated or steered through the vasculature from outside a patient's body to perform a medical procedure within the patient's vasculature. In one embodiment, a guidewire of this invention has at least 4, preferably at least 6, to as many as 10 or more distal-to-proximal conductive pathways, which are substantially longitudinally parallel to each other running linearly along substantially the majority if not the entire length of the guidewire body, preferably in a printed circuit format. In a further practice, the conductive pathways helically wound around the guidewire body.
    Type: Grant
    Filed: October 4, 2012
    Date of Patent: September 20, 2016
    Assignee: Lake Region Manufacturing, Inc.
    Inventor: Henry W. Lupton
  • Patent number: 9439721
    Abstract: Medical devices, systems, and methods for treating patients with tissue ablation include catheter systems having bi-modal steering mechanisms, which are capable of both linear and loop ablation. In other words, the catheter system may have two different steering modes: two-dimensional and three-dimensional. In the first and second steering modes, the steering actuator may cause one or more portions of the catheter shaft to bend in different planes. A steerable ablation catheter may include treatment elements such as electrodes at its distal end and along the catheter shaft, each of which may map, pace, and ablate. Optional features include a series of thermocouples for monitoring local temperatures.
    Type: Grant
    Filed: August 25, 2009
    Date of Patent: September 13, 2016
    Assignee: Medtronic Ablation Frontiers LLC
    Inventors: Randell Werneth, Ricardo Roman, Timothy J. Corvi, Betty Hu
  • Patent number: 9439794
    Abstract: A medical device delivery catheter includes an elongate tubular body including proximal, intermediate, and distal longitudinal segments. The proximal segment extends between a proximal end of the body and a first transition between the proximal segment and the intermediate segment, has a first outer diameter, and includes at least one flexibility increasing cut through a wall of the body. The intermediate segment extends between the first transition and a second transition between the intermediate segment and the distal segment, has a second outer diameter that is less than the first outer diameter, and defines a medical device support region. The distal segment has an initial outer diameter that is greater than the second outer diameter and terminates in a distally tapered region. The body is free of joints and has a uniform tensile strength across the proximal, intermediate, and distal segments and the transitions.
    Type: Grant
    Filed: June 14, 2013
    Date of Patent: September 13, 2016
    Assignee: Cook Medical Technologies LLC
    Inventor: Joshua P. Headley
  • Patent number: 9387035
    Abstract: Medical devices, systems, and methods for treating patients with tissue ablation include catheter systems having bi-modal steering mechanisms, which are capable of both linear and loop ablation. In other words, the catheter system may have two different steering modes: two-dimensional and three-dimensional. In the first and second steering modes, the steering actuator may cause one or more portions of the catheter shaft to bend in different planes. A steerable ablation catheter may include treatment elements such as electrodes at its distal end and along the catheter shaft, each of which may map, pace, and ablate.
    Type: Grant
    Filed: August 25, 2009
    Date of Patent: July 12, 2016
    Assignee: Medtronic Ablation Frontiers LLC
    Inventors: Randell Werneth, Ricardo Roman, Timothy J. Corvi, Betty Hu
  • Patent number: 9308347
    Abstract: A turbulator for promoting mixing of fluids passing through a body lumen includes an elongate flow perturbing component and an elongate shape controlling component freely slidable within the flow perturbing component. The turbulator is adjustable from a low profile, lumen access configuration to a deployed configuration via sliding the shape controlling component within the flow perturbing component. Adjusting the turbulator within a body lumen of a patient induces turbulence within a flow of fluid passing through the body lumen to increase mixing of a treatment fluid with the body fluid by way of the induced turbulence.
    Type: Grant
    Filed: February 24, 2014
    Date of Patent: April 12, 2016
    Assignee: Cook Medical Technologies LLC
    Inventors: James R. Randolph, Thomas A. Osborne
  • Patent number: 9216283
    Abstract: A multi-area pacing lead implantable in a target vein of the coronary network for stimulating a left cavity of the heart, comprising an electrically conductive microcable (12), an electrically insulating outer coating, and carrying at its distal end a free active portion containing a plurality of separate denuded areas forming a network of active stimulation electrodes (14, 16), intended to contact the wall of target veins. The active free portion has a proximal corrugated portion carrying a first set of electrodes (14), a distal corrugated portion carrying a second series of electrodes (16) and an intermediate portion (20) that traverses an anastomosis (22) connecting the ends of two veins (VA, VPL). Both sets of electrodes (14, 16) can thus be placed in two different veins, defining two remote stimulation areas.
    Type: Grant
    Filed: August 17, 2012
    Date of Patent: December 22, 2015
    Assignee: SORIN CRM S.A.S.
    Inventors: Jean Francois Ollivier, Frederic Anselme, Nicolas Shan
  • Patent number: 9192751
    Abstract: An elastic percutaneous elastic introducer sheath is disclosed which can locally expand and reduce to accommodate a transcatheter medical device. The elastic introducer sheath includes a non-circumferentially continuous wire structure, a liner, and a jacket.
    Type: Grant
    Filed: March 8, 2013
    Date of Patent: November 24, 2015
    Assignee: Medtronic, Inc.
    Inventors: Patrick Macaulay, Stephen Peter
  • Patent number: 9149605
    Abstract: A “Smart Micro-catheter” (SMC) system comprising a device for controlled particle release and drug delivery into a blood vessel, hepatic artery or any patho-physiological target is disclosed. Methods of using the micro-catheter system for optimal targeted delivery of therapeutic microspheres comprising using subject-specific computer simulations of particle-hemodynamics are further provided.
    Type: Grant
    Filed: July 28, 2010
    Date of Patent: October 6, 2015
    Inventor: Clement Kleinstreuer
  • Patent number: 9144665
    Abstract: Sheath assemblies incorporating slotted structures at one or more areas provide areas of different flexibility and bendability characteristics along the length of the sheath assembly. An inner tubular member has an arrangement of discontinuous slots along at least a portion of its length, with at least some of the slots terminating in an enlarged aperture at at least one terminus of the slot, and a flexible outer tubular member contacts and extends over at least a portion of the inner tubular member.
    Type: Grant
    Filed: August 9, 2011
    Date of Patent: September 29, 2015
    Assignee: Boston Scientific Limited
    Inventors: Jared Salstrom, Casey Torrance, William Kanz
  • Patent number: 9089264
    Abstract: A medical coil is provided which is formed by winding an element wire, and includes a convex part provided on a first end of a width direction of the element wire, and a concave part provided on a second end of the width direction of the element wire. At least one of the convex part and the concave part has a slant face. When a compressive force is applied in an axial direction of the medical coil, the convex part and the concave part adjacent to each other are configured to approach each other. A segment which connects a top part of the convex part which protrudes the most and a deepest part of the concave part which is deepest forms an angle so as not to be parallel to an axis of the medical coil.
    Type: Grant
    Filed: January 8, 2013
    Date of Patent: July 28, 2015
    Assignee: OLYMPUS CORPORATION
    Inventors: Yoshihisa Kaneko, Yutaka Yanuma
  • Patent number: 9023011
    Abstract: A medical device including a shaft having an elongated inner member and an elongated tubular reinforcing member disposed over at least a portion of the inner member. In some embodiments, at least a portion of the outer surface of the inner member is spaced from the inner surface of the reinforcing member, defining a space substantially free of any other structures of the device. In some embodiments, the shaft can include a tip structure disposed on a distal portion of the inner member. In some such embodiments, the reinforcing member has a distal end, and the tip structure is disposed on the distal portion of the inner member adjacent the distal end of the reinforcing member. Additionally, in some embodiments, the reinforcing member can include a plurality of apertures defined therein, for example, to enhance the flexibility or other such characteristics of all or portions of the reinforcing member.
    Type: Grant
    Filed: January 28, 2014
    Date of Patent: May 5, 2015
    Assignee: Boston Scientific Scimed, Inc.
    Inventors: Stephen A. Griffin, Elaine Lim, Gregory E. Mirigian
  • Patent number: 9017309
    Abstract: It is intended to provide a thrombus-aspiration catheter capable of exerting flexibility and aspiration force even in the case where the tube in the front end side is a triple lumen tube or a contrast marker is provided at the front end. A thrombus-aspiration catheter (1) comprising a basal end side tube (2) of the double lumen type which has an aspiration lumen (11) and a core wire lumen (12), and a front end side tube (3) of the triple lumen type which has a guide wire lumen (13) in addition to the aspiration lumen (11) and the core wire lumen (12), wherein the front end of the above-described front end side tube is obliquely cut and a terminal aspiration tube (4) of a flexible double lumen, which has a front end opening (41) inclined in almost the same direction as the cut face (31), is connected to the cut face.
    Type: Grant
    Filed: April 1, 2008
    Date of Patent: April 28, 2015
    Assignee: Nipro Corporation
    Inventors: Masahiro Tanikawa, Ryota Umegaki, Yuki Nishimura
  • Patent number: 8998845
    Abstract: A deflection mechanism for use in an elongate medical device is presented. The deflection mechanism comprises an actuator. The actuator comprises a rotatable body comprising a channel. The deflection mechanism further comprises an activation wire having a proximal end and a distal end, and a wire lock attached to the proximal end of the activation wire. The wire lock is disposed within the channel and is configured to ride therein when the actuator body is rotated. An elongate medical device, and a handle assembly thereof, that incorporate the deflection mechanism are also presented.
    Type: Grant
    Filed: June 4, 2012
    Date of Patent: April 7, 2015
    Assignee: St. Jude Medical, Atrial Fibrillation Division, Inc.
    Inventor: Justin A. Reed
  • Patent number: 8992506
    Abstract: A microcatheter comprises a coil formed over an inner liner. The coil is covered with a series of outer jacket segments that decrease in durometer relative to proximally adjacent segments. Preferably, these segments have angled ends that allow each segment to be inserted and bonded into the segment prior to it. The outer jacket ultimately terminates at a distal of the microcatheter with the segment having the lowest durometer.
    Type: Grant
    Filed: December 10, 2009
    Date of Patent: March 31, 2015
    Assignee: MircoVention, Inc.
    Inventor: Joseph Gulachenski
  • Patent number: 8979822
    Abstract: A catheter assembly comprises a first catheter including a wall with an inner surface at least partially defining a lumen. A second catheter is connected to the wall of the first catheter and is disposed outward of the inner surface of the wall. The second catheter is at least partially covered by a sheath portion of the first catheter. A first portion of the wall of the first catheter is made of a relatively low durometer elastomeric material and is relatively extensible. A second portion of the wall is formed of a relatively high durometer elastomeric material and is relatively inextensible.
    Type: Grant
    Filed: June 4, 2012
    Date of Patent: March 17, 2015
    Assignee: The Cleveland Clinic Foundation
    Inventors: Michael A. Vogelbaum, Ji-Feng Chen, Shengqiang Gao, Michael Collinson, Robert B. Guthrie
  • Patent number: 8974436
    Abstract: A malleable cannula having multiple lumens, constrained at the proximal end portion to provide rigidity and malleable at the distal end portion. The cannula has a combination of flexibility and stiffness that assists in accessing body passageways without kinking.
    Type: Grant
    Filed: October 28, 2011
    Date of Patent: March 10, 2015
    Assignee: Medtronic Xomed, Inc.
    Inventors: Ethan G. Sherman, David J. Little, Wei Chen, John R. Prisco, Matthew J. Friend, Matthew F. Myntti, Tom Zelmer, Cyan Godfrey, Roy Attride
  • Patent number: 8968383
    Abstract: A stent delivery system can include an elongate core member sized for insertion into a blood vessel. The core member can be configured to advance a stent toward a treatment location in the blood vessel. The core member can include a longitudinally extending tube having a helical cut extending along the tube. The helical cut can have an axial length of at least 50 cm and be continuous along the axial length.
    Type: Grant
    Filed: September 27, 2013
    Date of Patent: March 3, 2015
    Assignee: Covidien LP
    Inventors: Garrett Johnson, Michael Louis Losordo, Peter Skujins
  • Patent number: 8951240
    Abstract: A flexible tubular portion for an endoscope having a central axis includes a spiral tube, an outer layer covering the outside of the spiral tube, and an inhibiting portion. The spiral tube includes, along the longitudinal direction of the central axis, a closely wound portion to which an initial tension is applied, and sparsely wound portions provided on the distal side and the proximal side of the closely wound portion. The inhibiting portion inhibits the movement of at least a part of the sparsely wound portions relative to the outer layer in the longitudinal direction of the spiral tube.
    Type: Grant
    Filed: December 30, 2013
    Date of Patent: February 10, 2015
    Assignee: Olympus Medical Systems Corp.
    Inventors: Kenichiro Saito, Takahiro Kishi, Mamoru Machiya
  • Patent number: 8945060
    Abstract: Medical device (10) for delivering therapeutic material to a patient. The device comprises an access sheath (12) having a proximal section (18) extending to a distal section (20). A working lumen (22) is formed in the proximal and distal sections. The distal section has a plurality of side ports (48) formed therethrough in fluid communication with the working lumen. The distal section has a deflection section (42) actuatable to bend at an angle for positioning the side ports in the patient. A needle assembly (14) is configured to move within the working lumen between a retracted position and an extended position. In fluid communication with a central lumen is a plurality of needles (80). The needles are disposed within the access sheath in the retracted position and the needles extend through the side ports outwardly from the access sheath in the extended position.
    Type: Grant
    Filed: June 4, 2010
    Date of Patent: February 3, 2015
    Assignee: Cook Medical Technologies LLC
    Inventor: Tyler Joseph Bunch
  • Patent number: RE45380
    Abstract: A coaxial guide catheter to be passed through guide catheter having a first lumen, for use with interventional cardiology devices that are insertable into a branch artery that branches off from a main artery. The coaxial guide catheter is extended through the lumen of the guide catheter and beyond the distal end of the guide catheter and inserted into the branch artery. The device assists in resisting axial and shear forces exerted by an interventional cardiology device passed through the second lumen and beyond the flexible distal tip portion that would otherwise tend to dislodge the guide catheter from the branch artery.
    Type: Grant
    Filed: November 1, 2013
    Date of Patent: February 17, 2015
    Assignee: Vascular Solutions, Inc.
    Inventors: Howard Root, Gregg Sutton, Jeffrey M. Welch, Jason M. Garrity