Blood Vessel, Duct Or Teat Cutter, Scrapper Or Abrader Patents (Class 606/159)
  • Patent number: 10076641
    Abstract: Angioplasty and other dilatation devices are provided with scoring elements which incorporate a drug to be delivered to a body lumen, typically a blood vessel. The scoring elements have drugs and other active substances coated over a portion thereof or incorporated within internal structure of the element so that the drug is released into the luminal wall closely associated diseased regions of the body lumen as the scoring structure is radially expanded into the wall.
    Type: Grant
    Filed: April 26, 2006
    Date of Patent: September 18, 2018
    Inventors: Eitan Konstantino, Michal Konstantino
  • Patent number: 10070878
    Abstract: A clot removal device has an expandable treatment member having a distal tip and a proximal end, a delivery wire having a distal end coupled to the proximal end of the expandable treatment member, and a flow restrictor carried along the delivery wire at a location that is separate and proximal from the expandable treatment member. The flow restrictor has a body with a distal section and a proximal section, the distal section being covered and the proximal section being uncovered. The expandable treatment member is moveable relative to the flow restrictor, and can be retracted into the distal section.
    Type: Grant
    Filed: February 15, 2017
    Date of Patent: September 11, 2018
    Assignee: NeuroVasc Technologies Inc.
    Inventor: Jianlu Ma
  • Patent number: 10052122
    Abstract: A rotational atherectomy system is disclosed, comprising: an elongated, flexible spin-to-open drive shaft having a distal end for insertion into a vasculature of a patient and having a proximal end opposite the distal end remaining outside the vasculature of the patient; a concentric or eccentric abrasive element, preferably a solid crown, attached to the drive shaft proximate the distal end of the drive shaft; an electric motor rotatably coupled to the proximal end of the drive shaft, the electric motor being capable of rotating the drive shaft in a spin-to-open direction; and control electronics for monitoring and controlling the rotation of the electric motor. When an obstruction at the distal end is detected by the applied torque and/or current reaching a predetermined maximum allowed level and with the drive shaft opened to a maximum allowed outer diameter, power to the motor is eliminated.
    Type: Grant
    Filed: January 15, 2015
    Date of Patent: August 21, 2018
    Assignee: Cardiovascular Systems, Inc.
    Inventors: Joseph P. Higgins, Victor L. Schoenle, Michael J. Grace, Matthew D. Cambronne, Robert E. Kohler
  • Patent number: 10052124
    Abstract: The invention provides a rotational atherectomy device having a flexible, elongated, rotatable drive shaft with a system of eccentric abrading heads attached thereto. The eccentric enlarged abrading heads may have centers of mass spaced radially from the rotational axis of the drive shaft, wherein adjacent eccentric abrading heads, and centers of mass thereof, are rotationally separated from each other on the drive shaft.
    Type: Grant
    Filed: March 3, 2016
    Date of Patent: August 21, 2018
    Assignee: Cardiovascular Systems, Inc.
    Inventor: Matthew David Cambronne
  • Patent number: 10045787
    Abstract: Orthopedic device holder systems including a quick connect between an orthopedic device holder and an orthopedic tool are disclosed. The orthopedic device holder can include a shaft having a shaft connection end including at least three shaft engaging surfaces. The orthopedic tool can have a tool connection end including at least three tool engaging surfaces configured to couple with the three shaft engaging surfaces of the orthopedic device holder.
    Type: Grant
    Filed: October 8, 2015
    Date of Patent: August 14, 2018
    Assignee: Zimmer, Inc.
    Inventors: Robert D. Krebs, Lisa Carlin
  • Patent number: 10022145
    Abstract: A method of removing material from a blood flow lumen generally includes providing a device having a cutting element and an opening, advancing the device through the blood flow lumen to a site where material is to be removed, forcing the opening toward a wall of the site where material is to be removed, and moving the cutting element and the opening so that material in the blood flow lumen is cut by the cutting element and directed into the opening for removal as the cutting element and opening are moved through the blood flow lumen. In some embodiments, the device may be deflected or bent to force the opening toward a wall to remove material. The cutting element may be rotatable and may have an axis that is movable, that is not parallel to the longitudinal axis of the device, or both.
    Type: Grant
    Filed: September 20, 2016
    Date of Patent: July 17, 2018
    Inventors: John B. Simpson, Michael H. Rosenthal, Himanshu Patel, Gautama B. Venegas
  • Patent number: 10010327
    Abstract: An embodiment of the invention includes an expandable implant to endovascularly embolize an anatomical void or malformation, such as an aneurysm. An embodiment is comprised of a chain or linked sequence of expandable polymer foam elements. Another embodiment includes an elongated length of expandable polymer foam coupled to a backbone. Another embodiment includes a system for endovascular delivery of an expandable implant (e.g., shape memory polymer) to embolize an aneurysm. The system may include a microcatheter, a lumen-reducing collar coupled to the distal tip of the microcatheter, a flexible pushing element detachably coupled to an expandable implant, and a flexible tubular sheath inside of which the compressed implant and pushing element are pre-loaded. Other embodiments are described herein.
    Type: Grant
    Filed: December 14, 2011
    Date of Patent: July 3, 2018
    Assignees: Lawrence Livermore National Security, LLC, The Texas A&M University System
    Inventors: Thomas S. Wilson, Ward Small, IV, William J. Benett, Jason M. Ortega, Duncan J. Maitland, Jonathan Hartman
  • Patent number: 10004400
    Abstract: A probe including a catheter sheath, a shaft inserted inside the catheter sheath, and an attachment portion detachably attached to a rotational drive unit, wherein the attachment portion includes an isolation member isolating the inside of the attachment portion into a first area in which a member for transmitting the drive force generated by the rotational drive unit to the shaft is rotatably held and a second area in which the catheter sheath is fixedly held; the isolation member includes: an insertion hole through which the shaft is inserted between the first area and the second area and an ejection hole provided in a surface to which an end portion on the rotational drive unit side of the catheter sheath is connected and which is approximately perpendicular to the rotation axis of the shaft; and the ejection hole defines a flow path extending to the outside of the isolation member.
    Type: Grant
    Filed: September 14, 2012
    Date of Patent: June 26, 2018
    Inventors: Ryou Nakamoto, Yoshiteru Yamaguchi
  • Patent number: 10004525
    Abstract: A membrane removing forceps may include a first forceps jaw having a first forceps jaw distal end and a first forceps jaw proximal end and a second forceps jaw having a second forceps jaw distal end and a second forceps jaw proximal end. The membrane removing forceps may include one or more abrasive surfaces configured to raise a portion of a membrane. A surgeon may raise a portion of a membrane by grazing the portion of the membrane with one or more abrasive surfaces of a membrane removing forceps. The surgeon may grasp the raised portion of the membrane with the first forceps jaw distal end and the second forceps jaw distal end. The surgeon may then remove the membrane by peeling the membrane apart from an underlying tissue.
    Type: Grant
    Filed: December 12, 2015
    Date of Patent: June 26, 2018
    Assignee: Katalyst Surgical, LLC
    Inventors: Gregg D Scheller, David R Chow
  • Patent number: 9999436
    Abstract: A membrane removing forceps may include a first forceps jaw having a first forceps jaw distal end and a first forceps jaw proximal end and a second forceps jaw having a second forceps jaw distal end and a second forceps jaw proximal end. The membrane removing forceps may include one or more abrasive surfaces configured to raise a portion of a membrane. A surgeon may raise a portion of a membrane by grazing the portion of the membrane with one or more abrasive surfaces of a membrane removing forceps. The surgeon may grasp the raised portion of the membrane with the first forceps jaw distal end and the second forceps jaw distal end. The surgeon may then remove the membrane by peeling the membrane apart from an underlying tissue.
    Type: Grant
    Filed: November 2, 2015
    Date of Patent: June 19, 2018
    Assignee: Katalyst Surgical, LLC
    Inventors: Gregg D Scheller, David R Chow
  • Patent number: 9999504
    Abstract: A delivery device usable to deliver an inverting implant is provided that includes a positioning mechanism that automatically initiates the inversion process once a predetermined length of the implant has exited a delivery catheter. The positioning mechanism allows the implant to be safely and accurately deployed with reduced operator experience and in a greater variety of target locations.
    Type: Grant
    Filed: October 13, 2015
    Date of Patent: June 19, 2018
    Assignee: HLT, Inc.
    Inventors: Joseph Czyscon, Evan Leingang
  • Patent number: 9993648
    Abstract: The disclosure describes techniques and systems for delivering an implantable medical device. In one example, an implantable medical device (IMD) delivery system may include an elongated member comprising a first distal end configured to mate with the IMD, a resilient member disposed along at least a portion of the elongated member, a housing configured to accept a first proximal end of the elongated member and a second proximal end of the resilient member, a rotation control mechanism wherein user movement of the rotation control mechanism causes rotation of the elongated member with respect to the housing and a fixation element of the IMD into tissue, and a deflection control mechanism wherein user movement of the deflection control mechanism causes longitudinal displacement of the resilient member along a longitudinal axis of the elongated member and the housing resulting in angular deflection of the first distal end of the elongated member.
    Type: Grant
    Filed: June 17, 2015
    Date of Patent: June 12, 2018
    Assignee: Medtronic, Inc.
    Inventors: Tomas K Kelly, Paula McDonnell, Sean Ward, Richard McEvoy
  • Patent number: 9962529
    Abstract: An angioplasty catheter comprises a catheter body having a balloon or other radially expandable shell at its distal end. A non-axial external structure is carried over the shell and scores a stenosed region in a blood vessel when the balloon is inflated therein. The catheter has an attachment structure disposed between the catheter body and the balloon to accommodate foreshortening and rotation of the external structure as the balloon is expanded. The external structure may be part of a helical cage structure which floats over the balloon.
    Type: Grant
    Filed: May 12, 2014
    Date of Patent: May 8, 2018
    Assignee: Angioscore, Inc.
    Inventors: Eitan Konstantino, Tanhum Feld, Nimrod Tzori
  • Patent number: 9943397
    Abstract: An intravascular emboli capture and retrieval system for intravascular embolism protection and embolism removal or maceration. Guidewire mounted proximally and distally located multiple opening filters are deployed within the vasculature and used to part, divide and macerate embolic debris and to capture such embolic debris within the confines thereof. A deployable flexible preformed memory shaped capture sleeve is alternatively used to collapse one or more filters and embolic debris therein for subsequent proximal withdrawal from the vasculature.
    Type: Grant
    Filed: August 3, 2017
    Date of Patent: April 17, 2018
    Assignee: Embolitech, LLC
    Inventors: Michael Bonnette, Richard Prather, Eric J Thor, Stephen E Weisel, Douglas L Ball, David B Morris, Debra M Kozak, Gary Ansel
  • Patent number: 9943330
    Abstract: A tissue-removing catheter for removing tissue from a body lumen includes an elongate catheter body configured for insertion into the body lumen and a tissue-removing element. A side opening in the distal portion of the catheter body is defined by opposite first and second side edges, a proximal edge extending between the first and second side edges, and a distal edge opposite the proximal edge and extending between the first and second side edges. The side opening window has a longitudinal axis extending between the distal and proximal edges. The tissue-removing element is configured to move between a tissue-removing position, in which the tissue-removing element is exposed through the side opening window, and a neutral position, in which the tissue-removing element is positioned inside the distal portion of the catheter. The distal edge is asymmetric about the longitudinal axis of the side opening window.
    Type: Grant
    Filed: September 10, 2015
    Date of Patent: April 17, 2018
    Assignee: Covidien LP
    Inventors: Jason Kessler, Lucas Schneider
  • Patent number: 9937331
    Abstract: A balloon catheter is provided for dilating hardened stenoses. The balloon catheter has dilation elements integrally formed on the outer surface of the balloon. The dilation elements have cross-sectional shapes that improve the performance of the balloon catheter.
    Type: Grant
    Filed: February 12, 2016
    Date of Patent: April 10, 2018
    Inventors: David G. Burton, Thomas Lysgaard, Steen Aggerholm, Per Elgaard, Kjeld Hjort
  • Patent number: 9931495
    Abstract: In some embodiments, a medical device for recanalizing a vessel having a blockage and restoring blood flow through an obstructed blood vessel includes an expandable member coupled to a core wire and a hypotube that are movable relative to each other to manipulate the expandable member between various configurations. The expandable member having a capture structure in an expanded configuration. The expandable member can include multiple interstices formed by woven mesh filaments or braided strands through which the material blocking the vessel can pass. The capture structure can include a shape on its external surface that facilitates dislodgement and capture of the material within capture spaces created by the expandable member. Some embodiments include a capture sack or cap for capturing material and preventing material from migrating down stream of the blockage. Superoxygenated blood can be infused distal to the blockage to minimize loss of function during an ischemic event.
    Type: Grant
    Filed: March 23, 2015
    Date of Patent: April 3, 2018
    Assignee: COVIDIEN LP
    Inventor: Maria Aboytes
  • Patent number: 9924958
    Abstract: The devices and methods described herein relate to improved structures for removing obstructions from body lumens. Such devices have applicability in through-out the body, including clearing of blockages within the vasculature, by addressing the frictional resistance on the obstruction prior to attempting to translate and/or mobilize the obstruction within the body lumen.
    Type: Grant
    Filed: January 15, 2013
    Date of Patent: March 27, 2018
    Assignee: COVIDIEN LP
    Inventors: Brian B. Martin, Julio Aguilar
  • Patent number: 9918734
    Abstract: A rotating cutting head catheter for passage through chronic total occlusions or other refractory atherosclerotic plaque from diseased arteries is disclosed. The catheter's rotating cutting head is designed to reside safely within an outer protective sheath when not in use. The outer protective sheath contains one or more helical grooves or slots, and the cutting head contains protruding blades or projections that fit into these helical grooves or slots. Application of torque to an inner catheter or wire attached to the cutting head applies spin to the cutting head, and the force of the sheath's helical grooves or slots against the cutting head's protruding blades or projections advances the cutting head outward from the protective sheath. Once extended, the cutting head may now rotate freely. The device may use a guidewire to direct the cutting head to the desired position.
    Type: Grant
    Filed: January 28, 2013
    Date of Patent: March 20, 2018
    Assignee: Avinger, Inc.
    Inventors: Himanshu N. Patel, John B. Simpson
  • Patent number: 9913633
    Abstract: An ablation catheter system is disclosed that comprises a channel and a tubular braided element having an outer circumferential surface and a lumen. The tubular braided element is sized and shaped to be placed in the channel when in a compressed configuration and to be expanded in a target area of a blood vessel in a manner that the outer circumferential surface touches the walls of the target blood vessel in the target area when in an expanded configuration. The system also includes a longitudinal maneuvering element which is mechanically connected to a distal end of the tubular braided element and set to pull the distal end into the lumen so as to curve radially and outwardly a plurality of annular segments of the expand tubular braided element in a sequential manner.
    Type: Grant
    Filed: July 16, 2013
    Date of Patent: March 13, 2018
    Assignee: V.V.T. Med Ltd.
    Inventor: Zeev Brandeis
  • Patent number: 9913659
    Abstract: An atherectomy catheter directs particles generated by a cutting element into a collection chamber. A paddle attached to the cutting element propels fluid distally in the tissue collection chamber.
    Type: Grant
    Filed: April 13, 2015
    Date of Patent: March 13, 2018
    Assignee: Covidien LP
    Inventors: Zhiyong Zhang, John Robert Moberg, Hussain S. Rangwala, Thomas John McPeak, William Joseph Whealon, Richard S. Kusleika
  • Patent number: 9907890
    Abstract: A catheter pump assembly is provided that includes an elongate body assembly, a shaft, and an impeller. The assembly has a proximal end, a distal end and at least one lumen extending therebetween. The shaft is disposed at least partially within the elongate body, e.g., in the at least one lumen, and journaled for rotation. The impeller is coupled with a distal portion of the shaft. The impeller is configured to be rotated to induce flow of blood when the impeller is placed in fluid communication with a source of blood. An inflatable balloon brace is disposed on an outer surface of the catheter pump. The inflatable balloon brace is spaced proximally of the impeller and has a low profile configuration for delivery through the vasculature and an expanded configuration for disposing (e.g., position and/or orienting) the impeller within the source of blood.
    Type: Grant
    Filed: April 15, 2016
    Date of Patent: March 6, 2018
    Assignee: TC1 LLC
    Inventor: Paul F. Muller
  • Patent number: 9907567
    Abstract: A rotary catheter comprising a motor-driven flexible shaft rotatably disposed in a flexible tube having a fluid channel between them, a distal portion of the flexible shaft extending out of the tube and being free to move radially relative to the tube enabling the fluid channel to ingest large particles eased by motions between the rotating flexible shaft and the flexible tube, and pump means containing a thrombolytic drug connected to the fluid channel for infusing the drug through the fluid channel to the obstruction. An asymmetrical tip that is affixed to a distal end of the shaft has a substantially narrower cross section than its effective diameter so that fluid can flow alongside the tip and reach the area that the tip impacts the obstruction with the side of the tip and the tube aspirates fluid and the resulting particles into the channel.
    Type: Grant
    Filed: December 11, 2014
    Date of Patent: March 6, 2018
    Inventor: Samuel Shiber
  • Patent number: 9878128
    Abstract: A system and method for treating a blood vessel that is at least partially obstructed by an occlusion which divides the lumen into a proximal lumen segment and a distal lumen segment. The system includes an orienting catheter having an orientation element positionable in an intrawall space of the vessel and an occlusion catheter having an occlusion balloon inflatable in the proximal lumen segment so as to isolate a target volume including the intrawall space. The pressure inside the target volume is reduced to a pressure below the pressure of the distal lumen segment so that the intima presses against the orienting element of the orienting catheter. A distal end of a reentry device may be advanced from the orienting catheter through the intima and into the distal lumen segment.
    Type: Grant
    Filed: March 12, 2014
    Date of Patent: January 30, 2018
    Assignee: Boston Scientific Scimed, Inc.
    Inventors: Chad J. Kugler, David B. Robinson
  • Patent number: 9872693
    Abstract: A venous valve incising cutter includes a cutting teeth head, a guide, a wire and a coupling rod that couples the guide and a cutting teeth head, all aligned in a rotation axis thereof. More than four pieces of cutting blades are formed on the outer surrounding surface of the cutting teeth head. Each cutting blade has a roughly triangular pyramid shape such that the three ridge lines are composed of the outer surrounding surface of the cutting teeth head and the two planes formed in the reverse side of the outer surrounding surface and the apex is a knife-point of the cutting blade.
    Type: Grant
    Filed: February 2, 2015
    Date of Patent: January 23, 2018
    Inventors: Takatoshi Furuya, Kenji Numata
  • Patent number: 9861380
    Abstract: A minimally invasive laparoscopic tissue removal device, namely a morcellator. The device includes, from proximal end to distal end, a handle, handle guard, elongate sheath, and mouth, finally terminating in a safety tip. The elongate sheath and mouth are concentric, such that two elongate, rotating cutting/shredding blades/teeth and one elongate auger feed screw can be positioned along the length of the sheath and mouth. The teeth are opposingly disposed and staggered, such that contact with tissue mass grabs and pulls tissue inwards toward the auger, which transports the tissue proximally toward the outside of the patient's body. A motor unit and gear assembly can be coupled to the teeth and auger to drive rotation of the teeth and auger. A cup assembly can be disposed in overlying relation to the mouth for guiding the tissue mass towards the mouth. Various mechanisms of safely covering the mouth are contemplated as well.
    Type: Grant
    Filed: August 4, 2015
    Date of Patent: January 9, 2018
    Assignee: University of South Florida
    Inventors: Stuart Richard Hart, Erik James Esinhart, Adam Thomas Lytle, Daniel Ryan Kamsler, Charles William Drake, III, Yasin Ahamed Junaideen, Mario Alves Simoes
  • Patent number: 9855070
    Abstract: A matter elimination catheter includes a catheter body extending from a catheter proximal portion to a catheter distal portion. The catheter body includes an infusion lumen, an aspiration lumen fluidly isolated from the infusion lumen, and a septum interposed between the infusion and aspiration lumens. A drive shaft is within the infusion lumen and is configured to provide rotation near the catheter distal portion. A guide wire lumen is within the drive shaft, and the infusion lumen, the drive shaft and the guide wire lumen are fluidly separated from the aspiration lumen with the septum. In one example, fluid bearings are formed between one or more of the catheter body and drive shaft or the drive shaft and a guide wire or guide wire liner when supplied with infusion fluid through the infusion lumen.
    Type: Grant
    Filed: March 6, 2015
    Date of Patent: January 2, 2018
    Assignee: Boston Scientific Limited
    Inventors: Michael J. Bonnette, Richard R. Prather, Debra M. Kozak, David B. Morris
  • Patent number: 9848881
    Abstract: The invention being disclosed describes a medical device for removal of a thrombus or clot in a vascular setting by using a rotational, expandable basket structure in combination with drug infusion, blood/particle aspiration and clot isolation by distal and proximal occlusion.
    Type: Grant
    Filed: May 9, 2013
    Date of Patent: December 26, 2017
    Assignee: Fusion Medical, Inc.
    Inventors: Gregg Stuart Sutton, Eric Joseph Dille, Jeffery Foster Larson
  • Patent number: 9839766
    Abstract: A device and system for providing a centered lumen within a catheter body. A coiled guide lumen (CGL) is composed of a length of wire forming a plurality of coils about the longitudinal axis of the CGL, the CGL including one or more first sections having a first diameter and one or more sections having a second diameter, the second diameter being greater than the first diameter, and a secondary guide lumen extending through the first sections. The CGL may include at least one pull wire extending through the secondary guide lumen and attached at the distal portion of the catheter body. A band may be coupled to an interior of the catheter body distal portion, each of the pull wires being coupled to the annular band. Alternatively, the system may further include a shim coupled to the band, each of the pulls wire being coupled to the shim.
    Type: Grant
    Filed: October 20, 2014
    Date of Patent: December 12, 2017
    Assignee: Medtronic CryoCath LP
    Inventor: Ioana Deac
  • Patent number: 9826995
    Abstract: A device and method for treating a patient with total or near total occlusion is provided. The device can be positioned in a blood vessel at a treatment site. An occlusion at the treatment site is enlarged by a catheter. The catheter can be advanced over a guidewire into the occlusion. One or more of [a] compression or torsion applied to the guidewire or [b] compression or torsion applied to the catheter body expands or creates a path through the occlusion. The expansions or creation of the access path can be by cutting or abrading the occlusion or by a shoe-horn effect.
    Type: Grant
    Filed: April 9, 2015
    Date of Patent: November 28, 2017
    Assignee: XableCath, Inc.
    Inventors: Johannes B. Dahm, Bart M. E. Segers
  • Patent number: 9820769
    Abstract: Apparatus and methods are provided for removing obstructive material within a body lumen. The apparatus includes a macerator device deployable from a sheath that includes an expandable cage carried by a shaft and within a constraint tube. The shaft is movable relative to the constraint tube for deploying and expanding the cage within a body lumen such that an open end of the cage is oriented towards obstructive material. The cage is advanced to capture the material or the material is directed into the cage using an expandable member expanded beyond the material and retracted to direct the material into the cage. The cage is withdrawn into the constraint tube to compress the cage radially inwardly. Materials extending through apertures in the cage are sheared off by a sharpened edge of the constraint tube. The smaller, sheared off particles are then aspirated from the body lumen through the sheath.
    Type: Grant
    Filed: October 19, 2012
    Date of Patent: November 21, 2017
    Assignee: Hotspur Technologies, Inc.
    Inventors: Jeffrey A. Krolik, Juan Domingo, Daryush Mirzaee, James H. Dreher
  • Patent number: 9808359
    Abstract: Endovascular treatment of, for example, delayed cerebral vasospasm involves the placing of a microcatheter in the affected vessels followed by the teachings of the instant disclosure, which is clinically improved with comparison to slow infusion of a vasodilating compound. Systems, processes and self-expanding designed stents and stent-like members are featured and highlighted. The stents and stent-like members being retrieved, nothing is left in the vessel. Drug-eluting stents, resorbable stents and angiographically imagable coatings, including tantalum brushes over part or all of subject system components are also disclosed.
    Type: Grant
    Filed: May 13, 2016
    Date of Patent: November 7, 2017
    Inventors: David A. Ferrera, Joshua Benjamin, Pervinder Bhogal, Michael Söderman
  • Patent number: 9801647
    Abstract: A catheter for removing tissue from a body lumen and for providing information relating to the body lumen. The catheter includes a tissue cutting element that rotates relative to the catheter body and is mounted to the drive shaft for imparting rotation to the tissue cutting element. An energy emitting element of the catheter rotates relative to the catheter body and is rotatable independently of the tissue cutting element.
    Type: Grant
    Filed: November 12, 2012
    Date of Patent: October 31, 2017
    Assignee: Covidien LP
    Inventor: Michael Rosenthal
  • Patent number: 9775636
    Abstract: The present teachings provide devices and methods for percutaneously removing internal tissue. Specifically, one aspect of the present teachings provides a tissue incising element with a sharp cutting edge and a longitudinal lumen and a tissue stabilizer slidably disposed within the longitudinal lumen of the tissue incising element. The tissue incising element has a deployed configuration during tissue cutting and a small collapsed configuration during the percutaneous delivery and removal. The tissue stabilizer includes a tissue supporting/gripping element configured to support tissue during incising and capture the removed tissue.
    Type: Grant
    Filed: March 11, 2014
    Date of Patent: October 3, 2017
    Assignee: Corvia Medical, Inc.
    Inventors: George Fazio, Matthew Finch, John Mitzel
  • Patent number: 9763691
    Abstract: A medical device assembly for incising a stenosis in a blood vessel which includes an incising device, a tubular sheath, and a catheter having an inflatable balloon mounted thereon. The incising device includes a self-expanding scaffold having a plurality of cutting elements projecting radially outward therefrom, and an elongate member extending proximally from the self-expanding scaffold to be manipulated by a user. The self-expanding scaffold is positionable in the lumen of the sheath in a contracted configuration and deployed out of the lumen of the sheath to permit the self-expanding scaffold to expand to an expanded configuration. The inflatable balloon of the catheter is configured to be advanced distally into an interior of the self-expanding scaffold through a proximal opening of the self-expanding scaffold, and inflation of the inflatable balloon urges the cutting elements radially outward to incise a stenosis.
    Type: Grant
    Filed: August 10, 2012
    Date of Patent: September 19, 2017
    Assignee: Boston Scientific Scimed, Inc.
    Inventors: Steven Spencer, Richard Gunderson
  • Patent number: 9750509
    Abstract: A tissue removal kit or assembly comprises a cannula and a tissue removal probe axially slidable within the cannula. The tissue removal probe comprises an elongated member a distal end configured to curve when distally deployed from the cannula. The tissue removal probe further comprises a drive shaft rotatably disposed within the member, and a rotatable tissue removal element (e.g., an abrasive burr) disposed on the drive shaft adjacent the member distal end. The curved member distal end may associate the tissue removal element, which has its own axis of rotation, with a radius of revolution about the longitudinal axis of the member. The member is laterally flexible and resilient, so that the radius of revolution can be adjusted. In this manner, the tissue removal element can remove tissue around an adjustable arc.
    Type: Grant
    Filed: February 26, 2013
    Date of Patent: September 5, 2017
    Assignee: Boston Scientific Scimed, Inc.
    Inventor: Harold F. Carrison
  • Patent number: 9737328
    Abstract: A hydrodynamic catheter includes a catheter body with a catheter lumen and an infusion tube extending within the catheter body, the infusion tube configured for coupling with a fluid source near the catheter proximal portion. An inflow orifice and an outflow orifice are positioned at locations along a catheter body perimeter. A fluid jet emanator is in fluid communication with the infusion tube, where the fluid jet emanator includes one or more jet orifices configured to direct one or more fluid jets through the catheter lumen from near the inflow orifice toward the outflow orifice. A pivot cylinder located along the catheter body perimeter is positioned distal relative to one or more of the fluid jet emanator, the inflow orifice, or the outflow orifice.
    Type: Grant
    Filed: March 14, 2013
    Date of Patent: August 22, 2017
    Inventors: Michael J. Bonnette, Hieu V. Le
  • Patent number: 9731099
    Abstract: An apparatus is provided that operable in different modes to perform various functions for treating a body lumen. The apparatus includes a shaft including a proximal end, a distal end, a lumen extending therebetween, and a balloon on the distal end having an interior communicating with the lumen. The apparatus includes a valve on the distal end that selectively opens or closes an outlet communicating with the lumen. With the valve open, fluid introduced into the lumen exits the outlet into a body lumen. With the valve closed, fluid introduced into the lumen expands the balloon. The apparatus also includes an actuator for axially compressing the balloon, and a helical member extends between ends of the balloon interior that expands the balloon from a contracted condition to an expanded helical shape when the actuator is activated.
    Type: Grant
    Filed: October 24, 2012
    Date of Patent: August 15, 2017
    Inventors: Jeffrey A. Krolik, Gwendolyn Watanabe, Juan Domingo
  • Patent number: 9731098
    Abstract: The present disclosure is directed, in one embodiment, to a wire centering sheath system in which wires outwardly extend from a sheath to brace against a vessel wall. The wire centering sheath system may be used to center endovascular devices.
    Type: Grant
    Filed: March 13, 2013
    Date of Patent: August 15, 2017
    Assignee: The Spectranetics Corporation
    Inventor: Brandon Thomas Hendrick
  • Patent number: 9717576
    Abstract: A dental implant cleaning or chemotherapeutic treatment device includes an elongated hollow stem, and bristles operably attached to the elongated hollow stem adjacent a first end of the elongated hollow stem and projecting from the elongated hollow stem nonparallel to the elongated hollow stem.
    Type: Grant
    Filed: October 27, 2016
    Date of Patent: August 1, 2017
    Inventor: Leena Palomo
  • Patent number: 9700373
    Abstract: A catheter has an inflatable assembly at its distal portion, including a containment chamber, an axial core and a plurality of longitudinally oriented partitions extending from the axial core to the wall of the chamber to divide the containment chamber into at least four inflatable sectors. Hydraulic valves are connected to respective sectors to enable selective inflation of the sectors by a fluid when the valves are connected to a source of the fluid, and at least one surface electrode is mounted on each of the sectors. When introduced into a heart chamber and diametrically opposed sectors are inflated the assembly is stably fixed against the walls of the heart chamber and readings can be obtained from the surface electrodes of the inflated sectors.
    Type: Grant
    Filed: April 18, 2016
    Date of Patent: July 11, 2017
    Inventors: Michael Levin, Yoav Lichtenstein, Avi Reuveni, Avigdor Rosenberg
  • Patent number: 9687267
    Abstract: A catheter which includes a cutting element having one or more raised elements is provided. The cutting element has a cup-shaped surface at the distal end that may be smooth and continuous except for the raised elements. The raised elements have a surface that tends to direct cut particles of material towards one or more of the axis of rotation of the cutting element, the catheter axis, or a particle collection chamber. In further aspects of the invention, a cutting element oscillates in a direction roughly parallel to the axis of rotation of the cutting element.
    Type: Grant
    Filed: June 13, 2013
    Date of Patent: June 27, 2017
    Assignee: Covidien LP
    Inventors: Zhiyong Zhang, Hussain S. Rangwala, Robert Wayne VanPelt, Jr., Ethan Andrew Guggenheimer, William Joseph Whealon, John Robert Moberg
  • Patent number: 9675438
    Abstract: There is disclosed embodiments of a vascular filter having, among other things, a plurality of discrete segments, each having two or more loops and an extension. The loops of each segment can be connected to form a dome or conical shaped end with an unblocked central opening. Prongs and beads may be provided to enhance visualization and anchoring in a vessel. Methods for inserting and moving or removing the filter from the vessel are also disclosed.
    Type: Grant
    Filed: May 23, 2013
    Date of Patent: June 13, 2017
    Assignee: Cook Medical Technologies LLC
    Inventor: Charles W. Agnew
  • Patent number: 9668767
    Abstract: The devices and methods generally relate to treatment of occluded body lumens. In particular, the present devices and methods relate to controlled removal of the occluding material from the blood vessels as well as other body lumens. The atherectomy devices have features to convey the materials away from the operative site without the need to remove the devices from the body lumen. Additional aspects include controlled rates of tissue removal as well as other safety features to prevent accidental cutting of the lumen wall.
    Type: Grant
    Filed: November 4, 2014
    Date of Patent: June 6, 2017
    Assignee: Atheromed, Inc.
    Inventors: John T. To, Christopher James Danek
  • Patent number: 9649012
    Abstract: A rotary self-advancing endoscope system which produces propulsion by rotating, with a motor, a rotating cylindrical body provided on an outer periphery side of an insertion portion main body and causes the insertion portion main body to move forward into an examinee's body, wherein the system is configured to periodically repeating a combination of a state in which the rotating cylindrical body forward-rotates at a predetermined RPM and a state in which the rotating cylindrical body is stopped from rotating and releases accumulated elastic energy and, when a drive current to the motor has reached a predetermined threshold value, reverse-rotate the motor.
    Type: Grant
    Filed: December 11, 2014
    Date of Patent: May 16, 2017
    Inventor: Keijiro Omoto
  • Patent number: 9636138
    Abstract: A tissue-removing catheter includes a cutter. The catheter also includes a longitudinal force-transmitting member extending along a catheter body and being longitudinally movable relative to the catheter body. A distal end portion of the longitudinal force-transmitting member is operatively connected to a distal longitudinal portion of a cutter housing such that distal movement of the longitudinal force-transmitting member relative to the catheter body and the cutter imparts pivoting of the distal longitudinal portion to its open position to expose the cutter.
    Type: Grant
    Filed: December 10, 2013
    Date of Patent: May 2, 2017
    Assignee: Covidien LP
    Inventor: Lucas Schneider
  • Patent number: 9636131
    Abstract: A surgical tool arrangement for performing endoscopic surgical procedures which includes a powered handpiece and a cutting accessory which detachably connects to the handpiece. The cutting accessory has a distal end which defines a cutting head incorporating a suction arrangement directly adjacent the cutting features thereof.
    Type: Grant
    Filed: February 26, 2014
    Date of Patent: May 2, 2017
    Inventors: Kevin Manley, Brian Fouts, Bryan G. Deeny, James M. Hayes
  • Patent number: 9636135
    Abstract: An ultrasonic surgical blade comprising a body having a proximal end and a distal end. The distal end of the body is movable relative to a longitudinal axis by vibrations produced by a transducer. The body comprises a longitudinally extending bore formed within the ultrasonic surgical blade. The ultrasonic surgical blade is configured to emit a spray from the bore at the distal end thereof to substantially prevent fluid from contacting the distal end of the ultrasonic surgical blade.
    Type: Grant
    Filed: November 10, 2014
    Date of Patent: May 2, 2017
    Assignee: Ethicon Endo-Surgery, LLC
    Inventor: Foster B. Stulen
  • Patent number: 9629646
    Abstract: A tissue resection device may include an hourglass shaped burr to resect tissue according to the shape and curvature of the hourglass shaped burr. The tissue resection device may also include a depth stop window and a movable protective guard to control the amount of cutting.
    Type: Grant
    Filed: February 8, 2013
    Date of Patent: April 25, 2017
    Assignees: IMDS Corporation
    Inventors: Jens Kather, Joshua A. Butters, Jeffery D. Arnett, Dylan M. Hushka, Nicholas M. Slater, Bradford J. Coale
  • Patent number: RE46581
    Abstract: A system for removing matter from a partially or totally occluded stent includes a cutter that is urged radially outward toward the inner surface of the stent. Preferably, the cutter has a hardness that is less than or equal to the hardness of the material used to make the stent. Aspiration may be provided to remove portions of the occluding material from the vessel.
    Type: Grant
    Filed: December 30, 2004
    Date of Patent: October 24, 2017
    Assignee: Boston Scientific Scimed, Inc.
    Inventors: Daniel M. Lafontaine, Kurt M. Laundroche