Blood Vessel, Duct Or Teat Cutter, Scrapper Or Abrader Patents (Class 606/159)
  • Patent number: 11457947
    Abstract: An apparatus for scoring and treating a lesion includes a catheter, a scoring device, in the form of a rotary scoring element, and a drive unit for displacing the rotary scoring element and slicing the lesion. The rotary scoring element is displaceable between a stowed position fully contained within the catheter and a deployed position partially projecting from the catheter.
    Type: Grant
    Filed: November 6, 2019
    Date of Patent: October 4, 2022
    Assignee: C.R. Bard, Inc.
    Inventors: Brandon Simmons, Mark Nicholas Wright
  • Patent number: 11457936
    Abstract: A vacuum aspiration system may be used to treat thromboembolic disease, such as deep vein thrombosis or pulmonary embolism. The system includes a housing, and a fluid flow path extending through the housing. A first catheter is in fluid communication with the flow path, and a connector is configured to place a source of aspiration in communication with the flow path. A clot container is carried by the housing. A hemostasis valve is provided in the housing, and configured to receive a second catheter and direct the second catheter through the first catheter.
    Type: Grant
    Filed: June 24, 2021
    Date of Patent: October 4, 2022
    Assignee: Imperative Care, Inc.
    Inventors: Michael Buck, Julia Fox, James Jacobs
  • Patent number: 11452533
    Abstract: A guidewire for use in penetrating through complex and stenosed lesions. The distal tip of the guidewire has a roughened surface to increase frictional engagement with calcified and fibrous tissue to increase the penetration of the distal tip and the guidewire into and through the lesion and reduce the likelihood of deflection of the guidewire tip. The average surface roughness of the distal tip is in the range from 1 micron to 200 microns.
    Type: Grant
    Filed: January 10, 2019
    Date of Patent: September 27, 2022
    Assignee: Abbott Cardiovascular Systems Inc.
    Inventors: Puneet Kamal Singh Gill, Jonathan Durcan, Jakub Truty, Matthew J. Chludzinski, John Simpson
  • Patent number: 11452542
    Abstract: A medical device and a treatment method are disclosed, which can improve safety by reducing damage to a biological tissue while an object inside a biological lumen can be cut. A medical device is disclosed for cutting an object inside a biological lumen includes a rotatable drive shaft, and a rotary structure that interlocks with a distal side of the drive shaft so as to be rotated by the drive shaft. The rotary structure has a cutting portion for cutting the object, and a non-cutting portion capable of smoothly coming into contact with a biological tissue. The non-cutting portion is located in a maximum outer diameter portion of the rotary structure.
    Type: Grant
    Filed: September 21, 2018
    Date of Patent: September 27, 2022
    Assignee: TERUMO KABUSHIKI KAISHA
    Inventors: Kosuke Nishio, Tomonori Hatta
  • Patent number: 11450498
    Abstract: A relay, including a first fixed contact, a second fixed contact, a movable contact piece having first and second movable contacts, a contact piece holding unit configured to hold the movable contact piece, a magnet for arc extinguishing, and a debris suction unit configured to exert a magnetic force to suck debris, is disclosed. A first contact position between the first fixed contact and the first movable contact is located between the magnet for arc extinguishing and the contact piece holding unit in a longitudinal direction of the movable contact piece. The debris suction unit is disposed so that the first contact position does not overlap a region between the debris suction unit and the contact piece holding unit. A magnet force exerted by the debris suction unit in the contact piece holding unit is larger than a magnetic force exerted by the magnet in the contact piece holding unit.
    Type: Grant
    Filed: February 19, 2019
    Date of Patent: September 20, 2022
    Assignee: OMRON CORPORATION
    Inventors: Kohei Otsuka, Ryota Minowa, Hiroyuki Iwasaka, Yasuo Hayashida, Shingo Mori, Naoki Kawaguchi
  • Patent number: 11439749
    Abstract: The present solution provides trans-round window membrane (RWM) drug delivery. As an overview, the system can include a micropump that is connected to a flexible cannula. The cannula can include a stiffened and sharpened tip to facilitate insertion through the RWM. The cannula can be inserted through the RWM to improve the distribution of the delivered drug throughout the inner ear. The present solution can function as a small implantable or wearable device that can be used for both chronic and acute trans-RWM drug delivery. With this configuration, the micropump can constantly or intermittently deliver, over a period of days to months, small volumes of drugs from an internal reservoir.
    Type: Grant
    Filed: October 24, 2018
    Date of Patent: September 13, 2022
    Assignee: The Charles Stark Draper Laboratory, Inc.
    Inventors: Marcello Peppi, Vishal Tandon
  • Patent number: 11439417
    Abstract: The present disclosure relates generally to the field of minimally invasive catheter-based devices and procedures for the removal of necrotic debris. In particular, the present disclosure relates to systems and methods for the removal of necrotic debris from within a walled off necrosis without disrupting or damaging the tissue wall of the necrotic pocket.
    Type: Grant
    Filed: January 22, 2018
    Date of Patent: September 13, 2022
    Assignee: Boston Scientific Scimed, Inc.
    Inventors: Barry Weitzner, Ryan Hartman, Peter L. Dayton, John B. Golden
  • Patent number: 11432840
    Abstract: Various embodiments of devices and systems comprising a polymer driveshaft for use in high-speed rotational medical procedures, e.g., atherectomy, are disclosed. Generally, the primary driveshaft for transferring torque and activating rotation of a tool attached thereto, e.g., an abrasive element, is constructed with at least a polymer outer and inner surface. In certain embodiments, the polymer driveshaft may comprise a metallic band for fixed attachment of a structure, e.g., an abrasive element, thereto. Various embodiments may comprise a coupler that connects a drive shaft connected with a prime mover, e.g., a turbine or electric motor, with the polymer drive shaft, the coupler comprising openings through the coupler wall to the inner diameter of the coupler to allow fluid flow to the inner diameter of the coupled polymer drive shaft.
    Type: Grant
    Filed: March 25, 2019
    Date of Patent: September 6, 2022
    Assignee: Cardiovascular Systems, Inc.
    Inventors: Preston L. Grothe, Matthew D. Cambronne, Joseph P. Higgins, William F. Kuester, III, Benjamin Haselman, Joshua J. Cranston, Ric A. Gould, Nicholas W. Rydberg
  • Patent number: 11426194
    Abstract: An atherectomy device for removing deposits such as plaque from an interior of a vessel including an outer member and a rotatable shaft positioned for rotational movement within the outer member. The outer member is fixed axially. A rotatable tip is mounted to the distal region of the rotatable shaft for rotation about its longitudinal axis upon rotation of the shaft. The rotatable shaft includes a guidewire lumen for receiving a guidewire to enable over the wire insertion of the device.
    Type: Grant
    Filed: August 30, 2019
    Date of Patent: August 30, 2022
    Assignee: Rex Medical L.P.
    Inventors: James F. McGuckin, Jr., John D. Leedle, Colin Valentis, Jenna Rose Israel, Aaron Larry Snyder
  • Patent number: 11419677
    Abstract: An electrosurgical device (10) operable to deliver microwave energy to cause targeted tissue ablation is provided. The electrosurgical device (10) comprises an antenna (26), a reflector (30), and a dielectric material (34) disposed therebetween. The selection of the dielectric material (30) and the relative positioning of the antenna (26) and the reflector (30) provide impedance matching between the antenna (26) and a transmission line (12) so as to minimize heating along the length of the device (10) during use.
    Type: Grant
    Filed: December 1, 2015
    Date of Patent: August 23, 2022
    Assignee: Kansas State University Research Foundation
    Inventors: Punit Prakash, Brogan McWilliams, Emily Frederick
  • Patent number: 11419629
    Abstract: A medical device is disclosed for cutting substances inside a body lumen. The medical device includes: a drive shaft that is rotatable; at least one strut that is rotatably connected to a distal side of the drive shaft, the at least one strut extending along a rotation axis, and wherein a central portion of the at least one strut is bent so as to be expandable radially outwardly; and a support portion that is rotatably connected to the distal side of the drive shaft, and wherein the support portion is formed in a mesh shape and a tubular shape while including multiple gaps, at least a portion of which is positioned on a radially inside of the at least one strut, and which is expandable radially outwardly by a central portion in a direction extending along the rotation axis being bent.
    Type: Grant
    Filed: May 4, 2017
    Date of Patent: August 23, 2022
    Assignee: TERUMO KABUSHIKI KAISHA
    Inventors: Tomonori Hatta, Junichi Kobayashi, Taiga Nakano
  • Patent number: 11413053
    Abstract: A stone retrieval device includes a sheath and a stone retrieval basket that includes a distal region with a plurality of basket wires and a proximal region with one or more core wires. The stone retrieval basket is contained within the sheath and is movable out a distal opening of the sheath to cause the plurality of basket wires to open into a basket shape. The stone retrieval device further includes a lock mechanism that locks the position of the stone retrieval basket with respect to the position of the sheath and a basket force controller that includes a first and a second control stage. The first control stage includes a sensor for measuring force on the stone retrieval basket when the lock mechanism is in an unlocked position, and the second control stage includes a sensor for measuring force when the lock mechanism is in a locked position.
    Type: Grant
    Filed: June 5, 2019
    Date of Patent: August 16, 2022
    Assignee: Gyrus ACMI, Inc.
    Inventors: Lawrence J. St. George, Artemie G. Gavala
  • Patent number: 11413612
    Abstract: The laboratory device includes an elongated handle with ergonomic grips. The device has a center recess for a rod to slide or rotate. The blade head attaches at the distal end of the elongated handle. The rod has geared teeth that interact and mesh with the gears on the blade head allowing the user to manipulate the angle of the blade head via rod. The rod in the proximal position of the handle is disposed at an acute angle relative to the longitudinal axis of the handle such that the blade head and handle are positioned for insertion into and removal of a tissue culture vessel. When the rod is moved distally or rotated the blade head position is disposed perpendicularly, acute or obtusely in relationship to the longitudinal axes of the handle such that the blade head provides optimal raking opportunities for the device to collect cell colonies.
    Type: Grant
    Filed: June 28, 2019
    Date of Patent: August 16, 2022
    Inventor: Jae Go Kwon
  • Patent number: 11406802
    Abstract: Devices and methods for trimming a stent to a desired length with an outer tube and an inner tube having a distal end and a diameter configured to receive a portion of the stent in excess of the desired length. The inner tube may move within the outer tube and the distal end may include an end effector configured to trim the portion from the stent while the device and stent are within a patient.
    Type: Grant
    Filed: December 10, 2019
    Date of Patent: August 9, 2022
    Assignee: BOSTON SCIENTIFIC SCIMED, INC.
    Inventors: Kimberly DeGraaf, Peter J. Pereira, Manuel Teixeira, William A. Sturos, Jefferson R. Alpizar, Jozef Slanda, Mark Hera, Michael S. H. Chu, David Salto
  • Patent number: 11389309
    Abstract: An aneurysm embolization device can include a body having a single, continuous piece of material that is shape set into a plurality of distinct structural components. For example, the device can have an expandable component and an atraumatic tip portion extending therefrom. Further, the tip portion can be configured to enable the device to be implanted within the aneurysm while tending to mitigate risk of puncturing the aneurysm dome or otherwise assist in framing the aneurysm in advance of placement of additional embolic material.
    Type: Grant
    Filed: July 26, 2019
    Date of Patent: July 19, 2022
    Assignee: COVIDIEN LP
    Inventors: Teresa Ruvalcaba, Earl Frederick Bardsley, Richard Rhee
  • Patent number: 11382653
    Abstract: Described herein are atherectomy catheters, systems and methods that include longitudinally displaceable drive shafts that drive actuation of one or more cutters at the distal end of the catheter. The catheters described herein may include one or more imaging sensors for imaging before, during or after cutting tissue. In some variations the imaging sensor may be rotated around the perimeter of the catheter independently of the rotation of the cutter. Also describe herein are imaging catheters that may be used without cutters.
    Type: Grant
    Filed: July 2, 2019
    Date of Patent: July 12, 2022
    Assignee: Avinger, Inc.
    Inventors: Himanshu N. Patel, John B. Simpson, Charles W. McNall, Maegan K. Spencer, Michael Zung, Priyanshu Gupta, Nicholas J. Spinelli, Myra L. Fabro, Eduardo Sucgang, Theodore W. Ketai
  • Patent number: 11383068
    Abstract: A catheter or shaft, such as a distal access support or aspiration catheter, is provided that is configured to be advanced at least partially within a patient. The catheter or shaft may include a flexible and hollow shaft including a proximal end and a distal end. The flexible and hollow shaft may include a slotted portion with a plurality of slotted openings, the slotted portion including a first segment with a first pattern of slotted openings and a second segment extending proximally relative the first segment with a second pattern of slotted openings different from the first pattern.
    Type: Grant
    Filed: July 9, 2019
    Date of Patent: July 12, 2022
    Assignee: eLum Technologies, Inc.
    Inventors: Quang Tran, Noelle Bagnall, Victor Barajas
  • Patent number: 11383067
    Abstract: A medical elongated body is disclosed that suppresses elongation in an axial direction while maintaining high flexibility and has high torque transmission capability even in a bent state. The medical elongated body includes a tube shaped body. The tube shaped body has a slit extending in a spiral shape while meandering, the slit is formed from a pair of a first opposing surface and a second opposing surface, the first opposing surface forms a first convex portion, the first convex portion has a first wide portion having a width wider in a circumferential direction Y, the second opposing surface forms a first concave portion which surrounds and accommodates the first wide portion, the first convex portion has a first plane portion and a first side portion connected to both end portions, and in a circumferential developed view, the first side portion and the first plane portion have tangential discontinuity.
    Type: Grant
    Filed: February 15, 2019
    Date of Patent: July 12, 2022
    Assignee: TERUMO KABUSHIKI KAISHA
    Inventors: Yuichi Tada, Takashi Kitaoka, Mizuho Hirao
  • Patent number: 11376034
    Abstract: A medical device includes a shaft; and a cage coupled to the shaft, the cage comprising elongated cutting members configured to cut material(s) inside a blood vessel lumen, the cage including a first end and a second end, wherein one or both of the first end and second end are moveable along a longitudinal axis of the shaft to change a distance between them; wherein the cage has a naturally expanded configuration with a first cross sectional dimension; wherein the cage is collapsible to form a collapsed configuration in response to an increase in the distance between the first end and the second end of the cage; and wherein the medical device further comprises a control configured to apply a radial force to expand the cage beyond its naturally expanded configuration with a second cross sectional dimension that is larger than the first cross sectional dimension.
    Type: Grant
    Filed: September 19, 2019
    Date of Patent: July 5, 2022
    Assignee: Stryker Corporation
    Inventor: Garvin Leon-Yip
  • Patent number: 11376028
    Abstract: According to some embodiments, the present technology includes a device for the disruption and/or removal of obstructive material in a blood vessel. The device can comprise an elongated shaft having a proximal portion, a distal portion, and a lumen extending therebetween. The device can further comprise a capture structure carried by the distal portion of the elongated shaft and having a greater cross-sectional dimension than a cross-sectional dimension of the elongated shaft. The capture structure can comprise an opening at a first end portion that is fluidly coupled to the lumen of the elongated shaft, a fluid impermeable sidewall enclosing an interior region, and an opening extending through a thickness of the sidewall. A portion of the sidewall surrounding the opening can be configured to deform towards or away from the interior region such that a cross-sectional dimension of the opening increases to receive the obstructive material therethrough.
    Type: Grant
    Filed: August 4, 2021
    Date of Patent: July 5, 2022
    Assignee: Inquis Medical, Inc.
    Inventors: Vahid Saadat, William Jason Fox, Richard Christian Ewers, Mojgan Saadat, Sherwin Llamido
  • Patent number: 11369396
    Abstract: A medical-technical instrument includes a first instrument branch, a second instrument branch, and a bearing element coupling the instrument branches in a superimposed closure. The branches contact each other in a closure portion in an operation pivot region via mutually facing contact surfaces so that the branches in the operation pivot region contact each other with their respective contact surfaces, and the branches are positionable in a cleaning position outside the operation pivot region. The bearing element is fixed at an end portion on the first instrument branch and has a head widening conically in a continuous or stepped manner. The head penetrates a continuously or stepped conical passage opening in the second instrument branch. The passage opening is an elongated hole, and the bearing element is rotatably positionable in the elongated hole and translationally fixedly received.
    Type: Grant
    Filed: April 27, 2018
    Date of Patent: June 28, 2022
    Assignee: Aesculap AG
    Inventors: Pierre Ettwein, Robert Vogtherr
  • Patent number: 11357533
    Abstract: An intravascular device is provided having a catheter tube and an expandable portion including a plurality of struts capable of being moved between an open and a closed position. An incising element and an abrasive surface are provided on at least one of the struts. The incising element has a sharpened edge for creating an incision in, and the abrasive surface is configured to abrade, atherosclerotic material located within a blood vessel when the expandable portion is in the opened position.
    Type: Grant
    Filed: February 24, 2017
    Date of Patent: June 14, 2022
    Assignee: VentureMed Group, Inc.
    Inventor: John P. Pigott
  • Patent number: 11350990
    Abstract: A balloon for renal nerve modulation is disclosed. The balloon may include a polymer material forming a balloon wall having an outer surface and flexible circuits comprising a base selectively adhered to the exterior surface of the balloon wall. Adhesive is selectively applied to the outer surface of the balloon, to the flexible circuit or to both such that the adhesive is selectively deposited on the at least a portion of the at least two pads or on the at least a portion of the at least two pads and to a portion of the distal spline. The portion of the at least two pads or the portion of the at least two pads and a portion of the distal spline are adhered to the outer surface of the balloon and a remainder of the flexible circuit moves freely with respect to the outer surface of the balloon.
    Type: Grant
    Filed: June 16, 2020
    Date of Patent: June 7, 2022
    Assignee: BOSTON SCIENTIFIC SCIMED, INC.
    Inventors: Ajay Gupta, Jeffrey S. Lindquist, Paul J. Miller, Cass A. Hanson, Daniel T. Quillin, Hong Cao, Kenneth R. Larson
  • Patent number: 11337724
    Abstract: A method and device handle having a slide assembly are disclosed for controlling rotational speed of a catheter assembly under various rotational loads. The method includes: driving a catheter assembly at a target rotational speed in a first direction; detecting an actual rotational speed of the catheter assembly in the first direction; comparing the target rotational speed and the actual rotational speed of the catheter assembly in the first direction; and stopping the driving of the catheter assembly in the first direction before a completion of predetermined number of rotations in the first direction when the actual rotational speed decreases a predetermined value over a predetermined time frame.
    Type: Grant
    Filed: March 15, 2019
    Date of Patent: May 24, 2022
    Assignee: TERUMO KABUSHIKI KAISHA
    Inventors: Yuki Masubuchi, Steve Woodard, Mansour Saleki
  • Patent number: 11331108
    Abstract: A medical device includes a guide unit having a guide tube with a longitudinal axis, a proximal first coupling part fixedly connected to the guide tube, and a distal pivoting head with a cylindrical surface. An actuating tube is axially movable in the guide tube and is connected to the pivoting head. The actuating tube causes a pivoting movement of the pivoting head via a proximal operating element. In the device, in order to orient a distal guide element for a rotatable surgical tool more precisely and thus angularly orient the working head of such a tool, the operating element is pivotable about the longitudinal axis and causes the pivoting movement of the pivoting head by the axial displacement of the actuating tube.
    Type: Grant
    Filed: August 23, 2018
    Date of Patent: May 17, 2022
    Assignee: JOIMAX GMBH
    Inventors: Wolfgang Ries, Lars Schendzielorz, Rainer Steegmüller
  • Patent number: 11331119
    Abstract: Medical systems and methods for making and using medical systems are disclosed. Example medical systems may include an atherectomy system configured to engage and remove plaque from walls in vessels of a vascular system. The atherectomy system may include a drive shaft, a rotational tip coupled to an end of the drive shaft, a drive mechanism coupled to the drive shaft to rotate the rotational tip, and control configurations to control settings of operational modules of the atherectomy system. The control configurations may be configured to change settings of multiple operational modules of the atherectomy system in response to a single actuation of an actuator to facilitate use of the atherectomy system in a vasculature of a patient.
    Type: Grant
    Filed: April 10, 2019
    Date of Patent: May 17, 2022
    Inventors: Kristi Mae Flury, Sharath Badadamath
  • Patent number: 11324635
    Abstract: A cerumen removal apparatus for removing cerumen from an ear canal. The apparatus includes a body having a distal end and a proximal end interconnected by a main longitudinal axis; said distal end including a hollow collector head having at least one spiral vane or ridge projecting radially inward from an inner surface thereof and enclosing a lumen ending with an opening opened to said lumen for amassing said cerumen in said lumen via said opening; wherein said at least one spiral vane or ridge is adapted to guide the cerumen in a proximal direction into said hollow collector head when said hollow collector head rotates in the ear canal.
    Type: Grant
    Filed: October 30, 2018
    Date of Patent: May 10, 2022
    Assignee: EARWAYS MEDICAL LTD.
    Inventors: Miri Fahn, Amir Kraitzer
  • Patent number: 11317939
    Abstract: A thrombectomy device includes a handle at a proximal end portion of the device, a first arm connected to the handle, and a second arm extending to a distal end portion of the device. The device may also include a cage at the distal end portion of the device, the cage being adjustable between a contracted orientation and an expanded orientation, the cage including a cutting element disposed between a proximal end portion of the cage and a distal end of the cage, the cutting element including one or more of a round wire, a flat wire, or a blade configured to remove matter from a body lumen when the cage is in the expanded orientation, and a macerator extending within the first arm and the second arm, the macerator including a helical element.
    Type: Grant
    Filed: April 30, 2021
    Date of Patent: May 3, 2022
    Assignee: Vetex Medical Limited
    Inventors: Mark Bruzzi, Saeid Kasiri Ghahi, Paul Heneghan
  • Patent number: 11304723
    Abstract: Telescoping, self-driving, and laterally-pushing atherectomy devices are provided, each having a flexible sheath, a cutter with helical flutes, and a drive assembly. The drive assembly can have a flexible driveshaft that is rotatably translational with the lumen of the flexible sheath, a positive displacement pump that begins pumping at the distal end of the drive shaft adjacent to the helical flutes at the proximal end of the cutter, and the flexible drive shaft can be longer than the flexible sheath to enable a reversible telescoping of the drive assembly from the lumen of the flexible sheath. The positive displacement pump can be a screw pump having a drive screw portion extending beyond the flexible sheath, exposed for contact with a vascular lumen for the self-driving. And, the devices can have a reversibly-expandable, lateral pushing member at the distal end of the flexible sheath for the lateral pushing.
    Type: Grant
    Filed: November 3, 2021
    Date of Patent: April 19, 2022
    Assignee: AVANTEC VASCULAR CORPORATION
    Inventors: John To, Paul Escudero
  • Patent number: 11304713
    Abstract: A thrombosis macerating and aspiration device for macerating and aspirating blood clots and blockages in a blood vessel is disclosed. In some embodiments, the macerating element of the device rotates and creates a partial vacuum to assist in the aspiration of the blood clot of blockage. The macerating element may have a variety of different designs and shapes and in some embodiments, the macerating element is expandable.
    Type: Grant
    Filed: September 6, 2019
    Date of Patent: April 19, 2022
    Assignee: Merit Medical Systems, Inc.
    Inventors: Andrew Hansen, Alex Singleton, John Hall, Christopher Cindrich, Richard P. Jenkins, Jeremy Snow, Jim Mottola, Clark Ragsdale
  • Patent number: 11298149
    Abstract: A medical device is disclosed that can help prevent an object existing in a body lumen from clogging a lumen of an elongated member. The medical device including an elongated member having a lumen extending in an axial direction; an insertion member inserted in the lumen of the elongated member on a distal side of the lumen; and a breaking member fixed on an inner surface of the elongated member such that a gap is formed between the insertion member and the breaking member in the lumen of the elongated member on the distal side, and wherein the breaking member exerts a shearing force to the object by rotating relative to the insertion member while the object is between the insertion member and the breaking member.
    Type: Grant
    Filed: September 23, 2019
    Date of Patent: April 12, 2022
    Assignee: TERUMO KABUSHIKI KAISHA
    Inventors: Yuichi Tada, Mizuho Hirao
  • Patent number: 11291467
    Abstract: A medical device for crushing an object in a body lumen, the medical device including: an elongated shaft portion rotatably driven; a crushing unit provided with bendable wire rods and rotatable together with the shaft portion; and a sliding unit fixed to each of end portion of the wire rods on at least one of a distal side of and a proximal side of the wire rods and is interlocked with the shaft portion so as to be slidable in an axial direction of the shaft portion. The shaft portion is provided with contact portions that come into contact with the sliding unit during rotation and limit relative rotation of the shaft portion and the sliding unit. After the sliding unit is attached to the contact portions, the sliding unit rotates in the same direction as the shaft portion along with the rotation of the shaft portion.
    Type: Grant
    Filed: September 7, 2018
    Date of Patent: April 5, 2022
    Assignee: TERUMO KABUSHIKI KAISHA
    Inventors: Yuki Masubuchi, Masaomi Imai, Takashi Kitaoka, Takahiro Chida, Kazuaki Kanamoto, Yukitoshi Kato
  • Patent number: 11291468
    Abstract: An atherectomy system includes a drive mechanism adapted to rotatably actuate an atherectomy burr and a controller that is adapted to operate the drive mechanism in a first operating mode in which the atherectomy burr is operated at a speed reference and with a predetermined torque limit. The controller is adapted to determine when the atherectomy burr becomes stuck while in the first operating mode and is further adapted to, when the atherectomy burr becomes stuck, operate the drive mechanism in a second operating mode that is different from the first operating mode.
    Type: Grant
    Filed: June 18, 2019
    Date of Patent: April 5, 2022
    Assignee: BOSTON SCIENTIFIC SCIMED, INC.
    Inventors: Mark A. Hilse, Corydon Carlson, David Gordon Spangler, Daniel Frank Massimini, Laszlo Trent Farago
  • Patent number: 11284913
    Abstract: In embodiments of an obstruction removal device, system, and/or method, a removal tool is disposed at a distal end of a delivery tool and configured to at least partially separate an obstruction from an inner surface of a vasculature. An expandable member is also coupled to the delivery tool. The expandable member includes a proximal end that is free or slidably coupled to the delivery tool. The proximal end of the expandable member is configured to invert or slide toward a distal end of the expandable member, thereby causing the expandable member to surround at least a portion of the obstruction and the removal tool so that the obstruction is captured between the expandable member and the removal tool, when the delivery tool is withdrawn from the vasculature to remove the removal tool and the obstruction from the vasculature.
    Type: Grant
    Filed: January 7, 2020
    Date of Patent: March 29, 2022
    Inventor: Brett Allen Follmer
  • Patent number: 11284986
    Abstract: Multi-filter endolumenal methods and systems for filtering fluids within the body. In some embodiments a multi-filter blood filtering system captures and removes particulates dislodge or generated during a surgical procedure and circulating in a patient's vasculature. In some embodiments a dual filter system protects the cerebral vasculature during a cardiac valve repair or replacement procedure.
    Type: Grant
    Filed: September 27, 2018
    Date of Patent: March 29, 2022
    Assignee: Claret Medical, Inc.
    Inventors: Michael Lee, Daniel W. Fifer, Randall T. Lashinski
  • Patent number: 11278347
    Abstract: An end effector assembly for an electrosurgical device includes first and second jaw members movable between spaced-apart and approximated positions. The jaw members include tissue-contacting surfaces that define a tissue grasping area. One of the jaw members includes an electrically-insulating body, an interior electrode, and an exterior electrode. The interior electrode is positioned interiorly of outer bounds of the tissue grasping area. A portion of the interior electrode forms part of the tissue-contacting surface. The exterior electrode is positioned exteriorly of the outer bounds of the tissue grasping area. At least one portion of the exterior electrode: extends along the outer back surface of the body, is disposed within the body, and is positioned adjacent the outer bounds of the tissue grasping area. The interior and exterior electrodes are configured to conduct energy through tissue grasped within the tissue grasping area to seal tissue.
    Type: Grant
    Filed: May 4, 2018
    Date of Patent: March 22, 2022
    Assignee: Covidien LP
    Inventors: Craig A. Keller, Guillaume Lessard, Richard M. Ferrell
  • Patent number: 11272954
    Abstract: Rotational atherectomy devices and systems can remove or reduce stenotic lesions in blood vessels by rotating one or more abrasive elements within the vessel. The abrasive elements are attached to a distal portion of an elongate flexible drive shaft that extends from a handle assembly that includes a driver for rotating the drive shaft. In particular implementations, the handle assembly encapsulates an electric motor assembly, a pump assembly, and a controller assembly.
    Type: Grant
    Filed: August 2, 2019
    Date of Patent: March 15, 2022
    Assignee: Cardio Flow, Inc.
    Inventors: Cassandra Ann Piippo Svendsen, Ryan D. Welty, Michael Kallok
  • Patent number: 11266437
    Abstract: Various embodiments of devices and systems comprising a driveshaft for use in high-speed rotational medical procedures; e.g., atherectomy, are disclosed. Generally, the driveshaft is configured for transferring torque and activating rotation of a tool attached thereto, e.g., an abrading head, and is covered by a polymer jacket. In certain embodiments, the polymer jacket is allowed to rotate in response to the rotation of the drive shaft such that the polymer jacket is not fixed at its proximal end. Various embodiments of the drive shaft may include proximal and/or distal stops that enable the polymer jacket to move longitudinally between the stops, in embodiments comprising proximal and distal stops, or to the distal stop in embodiments comprising only a distal stop. Various embodiments of the devices and systems described herein optionally may include a metallic inner liner within the drive shaft, in addition to or instead of a polymer jacket.
    Type: Grant
    Filed: March 3, 2020
    Date of Patent: March 8, 2022
    Assignee: Cardiovascular Systems, Inc.
    Inventors: Preston L. Grothe, Matthew D. Cambronne, Joseph P. Higgins, Jeffrey R. Stone
  • Patent number: 11266434
    Abstract: A sheath comprises an elastomeric tube having a self-expanding scaffold coupled to a wall. The scaffold can expand to a diameter larger than the tube diameter to provide an enlarged distal opening. An aspiration catheter has a balloon and an aspiration port so that occlusive material can be removed from a blood vessel by drawing the balloon through the vessel while simultaneously aspirating through the port.
    Type: Grant
    Filed: October 1, 2018
    Date of Patent: March 8, 2022
    Assignee: Covidien LP
    Inventors: Robert Gordon McRae, Jessica Megan Clayton, James George Hanlon, Lawrence Lee Go, Tim Ngoc Huynh
  • Patent number: 11259836
    Abstract: A medical device and a treatment method are disclosed, which can effectively cut an object inside a biological lumen and can improve safety by reducing damage to a biological tissue. A medical device is disclosed for cutting the object inside the biological lumen. A structure rotated by a drive shaft has a first cutting portion, a second cutting portion located more proximal than the first cutting portion, a first non-cutting portion located between the first cutting portion and the second cutting portion, and a second non-cutting portion located on a proximal side of the second cutting portion.
    Type: Grant
    Filed: September 26, 2019
    Date of Patent: March 1, 2022
    Assignee: TERUMO KABUSHIKI KAISHA
    Inventors: Kousuke Nishio, Tomonori Hatta
  • Patent number: 11259822
    Abstract: Some embodiments relate to a device for retrieving a body from within a tubular structure, the device having a proximal end and a distal end and comprising: a device body at the proximal end; a conduit extending away from the device body to the distal end and sized to be receivable in the tubular structure; at least one actuator operably associated with the device body; a first strand extending at least in part through the conduit; a second strand extending at least in part through the conduit; wherein the first and second strands are affixed at the distal end of the device, and wherein the second strand is wound around the first strand along at least a distal length of the first strand; wherein the at least one actuator is operable to cause the second strand to adopt an expanded state in which the second strand defines a trawl volume to catch the body for retrieval of the body from the tubular structure.
    Type: Grant
    Filed: November 30, 2011
    Date of Patent: March 1, 2022
    Assignees: GLOBETEK 2000 PTY LTD, The Federal State Autonomous Educational Institution of The Higher Professional Education “National University of Science and Technology ‘MISIS’”
    Inventors: Mikhail Soutorine, Artem Nikolaevich Chernov-Haraev, Sergei Dmitrievich Prokoshkin, Elena Prokopievna Ryklina, Irina Yurievna Khmelevskaya, Andrey Victorovich Korotitskiy, Rouslan Valereevich Ipatkin
  • Patent number: 11259835
    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: February 8, 2019
    Date of Patent: March 1, 2022
    Assignee: ATHEROMED, INC.
    Inventors: Torrey Smith, Douglas E. Rowe, August Christopher Pombo, Paul Quentin Escudero, Christopher J. Danek, John T. To
  • Patent number: 11253291
    Abstract: Mechanical atherectomy and/or thrombectomy devices configured to remove obstructions (e.g., plaque material) of different consistencies and/or sizes from blood vessels. The devices may include a tractor comprising a flexible tube of material that inverts as it rolls over itself while being drawn into the open distal end of a catheter in a conveyor-like motion. The flexible tube can include features that facilitate engagement with the obstruction, enhance smooth tractor motion and/or promote movement control of the device within the blood vessel.
    Type: Grant
    Filed: September 10, 2019
    Date of Patent: February 22, 2022
    Assignee: Stryker Corporation
    Inventors: Michael P. Wallace, E. Skott Greenhalgh
  • Patent number: 11253292
    Abstract: A surgical atherectomy apparatus for removing particles such as plaque from an interior of a vessel having a motor housing slidable axially between a proximal position and a distal position. An axially fixed sheath extends from the outer housing and a catheter is connected to the motor housing and is positioned within the sheath. A rotatable shaft is positioned within the lumen of the catheter and is operatively connected to the motor for rotational movement, the rotatable shaft and catheter movable by movement of the motor housing between the proximal and distal positions. The rotatable shaft has an atherectomy bit extending therefrom for dislodgement of particles when rotated by the motor and dislodged particles are aspirated in the lumen of the catheter.
    Type: Grant
    Filed: August 21, 2016
    Date of Patent: February 22, 2022
    Assignee: Rex Medical, L.P.
    Inventors: James F. McGuckin, Jr., John D. Leedle, Colin Valentis, Jenna Rose Israel
  • Patent number: 11241251
    Abstract: A medical device is disclosed for cutting an object in a body lumen, including: a rotation structure which includes a cutting portion; a first shaft which is connected to a center shaft of the rotation structure and drives the rotation of the rotation structure; and a second shaft which is formed in a tubular shape surrounding the first shaft, wherein the second shaft is bendable at two positions including a first curved portion and a second curved portion located more distal than the first curved portion, and the second shaft is rotatable in a state in which a proximal side of the first curved portion and a distal side of the second curved portion of the second shaft are kept substantially parallel to each other.
    Type: Grant
    Filed: March 13, 2019
    Date of Patent: February 8, 2022
    Assignee: TERUMO KABUSHIKI KAISHA
    Inventor: Kousuke Nishio
  • Patent number: 11224456
    Abstract: This document describes rotational atherectomy devices and systems for removing or reducing stenotic lesions in blood vessels by rotating an abrasive element within the vessel to partially or completely remove the stenotic lesion material.
    Type: Grant
    Filed: November 15, 2019
    Date of Patent: January 18, 2022
    Assignee: Cardio Flow, Inc.
    Inventors: Paul Joseph Robinson, Cassandra Ann Piippo Svendsen, Charles Anthony Plowe, Albert Selden Benjamin
  • Patent number: 11224459
    Abstract: An atherectomy catheter for use in a vessel includes an elongate catheter body and an annular cutter. The elongate catheter body includes a fixed jog section with a pre-set curvature and a flexible section that has a greater flexibility than a remainder of the elongate catheter body. The fixed jog section and flexible section are formed of a frame including a plurality of circumferential slits therein. Also described herein is an atherectomy catheter for use in a vessel includes an elongate catheter body, an annular cutter, and an s-shaped curved portion in the elongate catheter body. The curved portion includes a frame having a longitudinal proximal spine and a longitudinal distal spine. The longitudinal proximal spine is positioned approximately 180 degrees away from the longitudinal distal spine.
    Type: Grant
    Filed: June 30, 2017
    Date of Patent: January 18, 2022
    Assignee: Avinger, Inc.
    Inventors: Himanshu N. Patel, Anthony J. Fernandez, Vincent Yeh
  • Patent number: 11213314
    Abstract: Rotational atherectomy devices and systems can remove or reduce stenotic lesions in blood vessels by rotating one or more abrasive elements within the vessel. The abrasive elements are attached to a distal portion of an elongate flexible drive shaft that extends from a handle assembly that includes a driver for rotating the drive shaft. In particular implementations, individual abrasive elements are attached to the drive shaft at differing radial angles in comparison to each other (e.g., configured in a helical array). The centers of mass of the abrasive elements can define a path that spirals around the drive shaft in a direction that is opposite to the wind direction of filars of the drive shaft, and opposite to the direction of rotation. In some embodiments, a concentric abrasive tip member is affixed to and extends distally from a distal-most end of the drive shaft.
    Type: Grant
    Filed: September 28, 2018
    Date of Patent: January 4, 2022
    Assignee: Cardio Flow, Inc.
    Inventors: Paul Joseph Robinson, Cassandra Ann Piippo Svendsen, Albert Selden Benjamin, Charles Anthony Plowe
  • Patent number: 11207096
    Abstract: A vascular device is provided having a catheter body and a rotatable cutter assembly located at the distal end of the catheter body. The cutter assembly has at least one helical cutting surface within a housing that is coupled by a torque shaft to a drive mechanism. A conveyor mechanism helically wound about the torque shaft conveys occlusive material conveyed into the housing by the helical cutting blade further proximally along the catheter body for discharge without supplement of a vacuum pump. The catheter body is manipulated to insert the distal end of the catheter body within a body lumen and advance the distal end of the catheter body toward the occlusive material.
    Type: Grant
    Filed: October 23, 2018
    Date of Patent: December 28, 2021
    Assignee: ATHEROMED, INC.
    Inventors: John T. To, Christopher James Danek
  • Patent number: 11202651
    Abstract: A balloon includes a plurality of radial projections formed in a working surface for use in providing a focused force during the angioplasty procedure. The plurality of radial projections may be formed in a wall of the balloon and spaced apart in a longitudinal direction. The projections for use in connection with such a balloon may comprise wires or wire segments, and may also comprise radiopaque materials to facilitate viewing under fluoroscopy during the procedure. Related methods of manufacturing are also disclosed.
    Type: Grant
    Filed: January 11, 2019
    Date of Patent: December 21, 2021
    Assignee: C.R. Bard, Inc.
    Inventors: Corey Rousu, Karen DiClaudio