Specific Balloon Shape (e.g., Doughnut, Pear, Hour Glass, Etc.) Patents (Class 604/103.07)
  • Patent number: 10772759
    Abstract: The invention relates to a method of central nervous system pathology treatment through selective hypothermia. Brain and spinal cord cooling is achieved through a closed loop catheter system inserted directly into the cerebrospinal fluid space. The catheter comprises of a portion that dilates in a pulsatile or peristaltic fashion and facilitates circulation of the cooled cerebrospinal fluid.
    Type: Grant
    Filed: August 2, 2017
    Date of Patent: September 15, 2020
    Inventor: Rohit Khanna
  • Patent number: 10765841
    Abstract: A system for use in prevention of stroke is provided that has a shaft that carries an occluding balloon. The occluding balloon is inflated to occlude blood flow through at least one of a right carotid artery and a left carotid artery. An actuation device for causing inflation of the occluding balloon is present. The inflation is applied in a cyclical nature based upon a cardiac cycle. The cyclical inflation of the occluding balloon in turn causes a resulting cyclical occlusion.
    Type: Grant
    Filed: February 8, 2018
    Date of Patent: September 8, 2020
    Inventor: Michael Zhadkevich
  • Patent number: 10758667
    Abstract: A method and apparatus for cleansing the interior surfaces of body cavities employs a balloon catheter adopted to be inserted into a cavity through its ostium with the balloon in collapsed condition. An input flow tube for a cleansing and/or medicating fluid passes through a central passage in the balloon. When the balloon is inflated to establish a narrow passage between the balloon and the cavity walls, a pressurized flow of the fluid is pumped out the distal end of the input flow tube through the passage, parallel to the cavity walls, where it scours the inner wall of the cavity, removing debris as it flows out of the ostium. The fluid flow is urged toward a turbulent condition by attachments to the outer wall of the balloon.
    Type: Grant
    Filed: February 4, 2014
    Date of Patent: September 1, 2020
    Inventor: Michael Rontal
  • Patent number: 10751515
    Abstract: Methods and devices described for improved catheters including those having a deflectable section to allow for expansion while maintaining flow through a vessel.
    Type: Grant
    Filed: April 15, 2015
    Date of Patent: August 25, 2020
    Assignee: QMAX, LLC
    Inventor: Robert C. Laduca
  • Patent number: 10709586
    Abstract: Embodiments of the present invention are directed to a method for deploying a medical device in a subject's tubular structure by advancing a catheter through a subject's tubular structure to a target location, the catheter having a tip coupled to a shaft of a T-shaped junction and the T-shaped junction having a crossbar coupled to an inflatable member; and inflating the inflatable member from an uninflated first state to an inflated second state with an inflation medium, where the inflatable member is shaped as a toroid in the inflated second state. In one embodiment the inflated member has attached to it a conical shaped membrane with a drawstring disposed through the shaft, crossbar, and inflatable member for ensnaring debris in the membrane. The orientation of the inflatable member may be perpendicular to the axis of the catheter and is resistant to deflection when forces are encountered in the tubular structure.
    Type: Grant
    Filed: July 24, 2018
    Date of Patent: July 14, 2020
    Assignee: Endovention, Inc.
    Inventors: Shaun Laurence Wilkie Samuels, Peter S. Yorke
  • Patent number: 10709832
    Abstract: Interventional procedures on the carotid arteries are performed through a transcervical access while retrograde blood flow is established from the internal carotid artery to a venous or external location. A system for use in accessing and treating a carotid artery includes an arterial access device, a shunt fluidly connected to the arterial access device, and a flow control assembly coupled to the shunt and adapted to regulate blood flow through the shunt between at least a first blood flow state and at least a second blood flow state. The flow control assembly includes one or more components that interact with the blood flow through the shunt.
    Type: Grant
    Filed: September 24, 2019
    Date of Patent: July 14, 2020
    Assignee: Silk Road Medical, Inc.
    Inventors: Enrique Criado, Tony M. Chou, Michi E. Garrison, Gregory M. Hyde, Alan Schaer, Richard Renati
  • Patent number: 10702634
    Abstract: Disclosed is a chest drainage system which reduces or eliminates pooling of blood/liquid and/or clogging/clotting in the drainage tube. Generally, the chest drainage system continuously monitors chest tube status and clears pooled liquid when necessary to restore negative pressure to the chest. The system may include a valve device which is located between the patient's chest tube and drainage tube and may be used with any standard chest tube. The chest drainage system also includes a controller for monitoring the pressure at or near the valve device and/or at or near the suction device, and possibly a pump for assisting in clearance of pooled liquid and/or clots. The controller may also control the valve device and/or suction device in response to pressure signals.
    Type: Grant
    Filed: February 1, 2017
    Date of Patent: July 7, 2020
    Assignee: Centese, Inc.
    Inventors: Evan S. Luxon, Daniel R. Burnett, Mark Ziegler
  • Patent number: 10589025
    Abstract: The present disclosure relates generally to the field of drug delivery. In particular, the present disclosure relates to a drug delivery system that includes a sealed and sterile fluid path attached to a drug-loaded container. The disclosure further relates to methods for sterilizing a portion of the drug delivery system without exposing the drug-loaded container to harmful sterilization parameters.
    Type: Grant
    Filed: February 19, 2019
    Date of Patent: March 17, 2020
    Assignee: INSULET CORPORATION
    Inventor: Ian McLaughlin
  • Patent number: 10549077
    Abstract: An angioplasty balloon having an elastic constraining structure that partially expands with the balloon so that, at maximum balloon inflation, the constraining structure forms a pattern of channels or “pillows” on the balloon.
    Type: Grant
    Filed: November 25, 2015
    Date of Patent: February 4, 2020
    Assignee: TriReme Medical, LLC
    Inventors: Eitan Konstantino, Tanhum Feld
  • Patent number: 10543307
    Abstract: Interventional procedures on the carotid arteries are performed through a transcervical access while retrograde blood flow is established from the internal carotid artery to a venous or external location. A system for use in accessing and treating a carotid artery includes an arterial access device, a shunt fluidly connected to the arterial access device, and a flow control assembly coupled to the shunt and adapted to regulate blood flow through the shunt between at least a first blood flow state and at least a second blood flow state. The flow control assembly includes one or more components that interact with the blood flow through the shunt.
    Type: Grant
    Filed: June 14, 2018
    Date of Patent: January 28, 2020
    Assignee: Silk Road Medical, Inc.
    Inventors: Enrique Criado, Tony M. Chou, Michi E. Garrison, Gregory M. Hyde, Alan Schaer, Richard Renati
  • Patent number: 10543015
    Abstract: The present invention teaches the uses of a disc shaped mesh intrasaccular occlusion structure, with optional supplemental hydrogel, which is designed to implement an endovascular treatment to facilitate saccular aneurysm treatment while ameliorating or eliminating aneurysm recurrence.
    Type: Grant
    Filed: November 20, 2017
    Date of Patent: January 28, 2020
    Inventor: Daniel Ezra Walzman
  • Patent number: 10485917
    Abstract: Interventional procedures on the carotid arteries are performed through a transcervical access while retrograde blood flow is established from the internal carotid artery to a venous or external location. A system for use in accessing and treating a carotid artery includes an arterial access device, a shunt fluidly connected to the arterial access device, and a flow control assembly coupled to the shunt and adapted to regulate blood flow through the shunt between at least a first blood flow state and at least a second blood flow state. The flow control assembly includes one or more components that interact with the blood flow through the shunt.
    Type: Grant
    Filed: May 13, 2019
    Date of Patent: November 26, 2019
    Assignee: SILK ROAD MEDICAL, INC.
    Inventors: Enrique Criado, Tony M. Chou, Michi E. Garrison, Gregory M. Hyde, Alan Schaer, Richard Renati
  • Patent number: 10478323
    Abstract: The present invention relates to a biodegradable stent and a shape memory extending method thereof. According to an exemplary embodiment of the present invention, radial force of a biodegradable stent may be largely increased through the shape memory extending method of the biodegradable stent and the number of cracks may be decreased after crimping and stent inflation.
    Type: Grant
    Filed: December 8, 2015
    Date of Patent: November 19, 2019
    Assignee: SUNTECH CO., LTD.
    Inventors: Hyungil Kim, Hyun Hee Han
  • Patent number: 10434291
    Abstract: A balloon catheter includes a first balloon positioned inside of a second balloon, both of which are mounted about a catheter and fluidly connected to respective inflation lumens. In a first inflated configuration, the second balloon is inflated and has a shape that includes a plurality of bulb segments, with each two consecutive bulb segments being separated by a waist hoop. In a second inflated configuration both the inner and outer balloons are inflated, and the inner balloon bears radially outwardly against the waist hoop of the outer balloon such that the waist hoop of the outer balloon has a larger diameter in the second inflated configuration than in the first inflated configuration. The bulb segment separated by waist hoops enable the balloon catheter to conform to curved passageways, such as during the implementation of a stent.
    Type: Grant
    Filed: September 18, 2017
    Date of Patent: October 8, 2019
    Assignee: Cook Medical Technologies LLC
    Inventors: Ralf Spindler, James Merk, Brent Mayle, Thomas Lysgaard
  • Patent number: 10426885
    Abstract: Interventional procedures on the carotid arteries are performed through a transcervical access while retrograde blood flow is established from the internal carotid artery to a venous or external location. A system for use in accessing and treating a carotid artery includes an arterial access device, a shunt fluidly connected to the arterial access device, and a flow control assembly coupled to the shunt and adapted to regulate blood flow through the shunt between at least a first blood flow state and at least a second blood flow state. The flow control assembly includes one or more components that interact with the blood flow through the shunt.
    Type: Grant
    Filed: October 10, 2017
    Date of Patent: October 1, 2019
    Assignee: Silk Road Medical, Inc.
    Inventors: Enrique Criado, Tony M. Chou, Michi E. Garrison, Gregory M. Hyde, Alan Schaer, Richard Renati
  • Patent number: 10384044
    Abstract: Disclosed is a sinus balloon catheter. The sinus balloon catheter includes a body unit, a bending angle adjusting unit that includes a bending angle adjusting lever and a rotary plate, and a guide unit that includes a balloon, and has a pair of bending angle adjusting wires therein. The guide unit includes a first guide body, and a second guide body that is slidably provided in the first guide body, the balloon is provided on the second guide body, the rotary plate is connected to any one of the pair of bending angle adjusting wires to be rotated, and the other bending angle adjusting wire is maintained within the guide unit, and the guide unit is inserted into any one of a sphenoidal sinus, a frontal sinus, and a maxillary sinus.
    Type: Grant
    Filed: November 28, 2016
    Date of Patent: August 20, 2019
    Assignees: GIL MEDICAL CENTER, GACHON UNIVERSITY OF INDUSTRY-ACADEMIC COOPERATION FOUNDATION
    Inventors: Seontae Kim, Hanyong Chun, Donghyuk Lee, Soohwa Song
  • Patent number: 10363393
    Abstract: There is provided a microcatheter having a proximal solution lumen and a distal tip portion with a guidewire lumen. The microcatheter and methods of use thereof allows for introduction of solution into a vessel while manipulating the guidewire and/or the microcatheter itself. The solution may be a contrast solution, for viewing of the vessel, a therapeutic or diagnostic solution, or any other type of solution.
    Type: Grant
    Filed: August 7, 2017
    Date of Patent: July 30, 2019
    Assignee: THERMOPEUTIX INC.
    Inventors: Ronald Jay Solar, Yoav Shaked, Glen Lieber
  • Patent number: 10350051
    Abstract: An orthotopic artificial bladder endoprosthesis includes a casing made of a PGA fiber fabric; the casing having two first connectors for the connection with the ureters of a patient and a second connector for the connection with the urethra of a patient; a support element being inserted in the casing; the support element being switchable between an extended configuration, in which it supports and maintains in position the casing, and a retracted configuration.
    Type: Grant
    Filed: September 28, 2015
    Date of Patent: July 16, 2019
    Inventor: Antonio Sambusseti
  • Patent number: 10335581
    Abstract: A balloon for a balloon catheter includes a body section and cone sections. At least one of the cone sections defines a plurality of grooves spaced around the circumference of the cone section.
    Type: Grant
    Filed: June 17, 2015
    Date of Patent: July 2, 2019
    Assignee: Covidien LP
    Inventors: Mark Schneider, Bradley Steele, Christopher Anderson, Kumin Yang
  • Patent number: 10335577
    Abstract: The present invention relates to a catheter apparatus with an anchoring device to stabilize the catheter tip when in use, such as when infusing, injecting, or delivering substances, devices or other catheters into a patient. The apparatus according to various embodiments deploys an anchoring device that stabilizes the catheter tip and enables adjustment of the blood flow during use.
    Type: Grant
    Filed: July 23, 2015
    Date of Patent: July 2, 2019
    Assignee: Nfinium Vascular Technologies, LLC
    Inventor: Richard E. Fulton, III
  • Patent number: 10300257
    Abstract: A dilation assembly includes a shaft and a dilator coupled with the distal end of the shaft. The dilator includes a proximal end, a distal end, and a center portion positioned between the proximal end and the distal end. The center portion dilates from a first configuration to a second configuration. The center portion has a larger diameter than the proximal end and the distal end when the center portion is in the second configuration. At least one gripping feature is positioned on at least a portion of the exterior surface of the center portion. The gripping feature provides friction between the center portion and a bodily lumen when the center portion is in the second configuration.
    Type: Grant
    Filed: March 29, 2016
    Date of Patent: May 28, 2019
    Assignee: Acclarent, Inc.
    Inventors: Show-Mean Wu, Tapan Mistry, Dexter D. Hernando, Siddhi K. Desai, Robert J. Tannhauser, Shrirang V. Ranade, Ketan P. Muni, Martin J. Madden, Andrew Chen
  • Patent number: 10286139
    Abstract: Interventional procedures on the carotid arteries are performed through a transcervical access while retrograde blood flow is established from the internal carotid artery to a venous or external location. A system for use in accessing and treating a carotid artery includes an arterial access device, a shunt fluidly connected to the arterial access device, and a flow control assembly coupled to the shunt and adapted to regulate blood flow through the shunt between at least a first blood flow state and at least a second blood flow state. The flow control assembly includes one or more components that interact with the blood flow through the shunt.
    Type: Grant
    Filed: December 5, 2018
    Date of Patent: May 14, 2019
    Assignee: Silk Road Medical, Inc.
    Inventors: Enrique Criado, Tony M. Chou, Michi E. Garrison, Gregory M. Hyde, Alan Schaer, Richard Renati
  • Patent number: 10238791
    Abstract: The present disclosure is directed to a valve structure that comprises a flexible structure having a distal portion configured for attachment to a first member and a proximal portion configured for attachment to a second member. The flexible structure is configured such that when the first member is extended distally relative to the second member, the flexible structure adopts a reduced width profile and such that when the first member is retracted proximally relative to the second member to a point of maximal retraction, the flexible structure adopts an expanded width profile, which is more resistant to deformation due to fluid pressure in a proximal direction than it is to deformation due to fluid pressure in a distal direction. The present disclosure is also directed to devices and methods pertaining to such a valve structure.
    Type: Grant
    Filed: January 5, 2016
    Date of Patent: March 26, 2019
    Assignee: Boston Scientific Scimed, Inc.
    Inventors: Devon N. Arnholt, Joel T. Eggert, Jonathan P. Fettig
  • Patent number: 10207090
    Abstract: Traditional and existing methods of cervical ripening employ a Foley Bulb designed for and typically used in bladder procedures. Consequently, the application to the cervix is sub-optimal. The described device resolves this and related limitations. The device includes a balloon that has been designed to accommodate the cervix geometry, and which can adapt to normal differences in the individual. Further improvements are attained by the use of a supporting device which couples the cervix ripening device to the individual.
    Type: Grant
    Filed: March 26, 2013
    Date of Patent: February 19, 2019
    Assignee: Board of Regents of the University of Texas System
    Inventors: Brent M. Nowak, Leonid Bunegin, Pamela G. Ferguson
  • Patent number: 10201685
    Abstract: Flexible high-pressure angioplasty balloons are disclosed herein which utilize an inflatable balloon positioned upon the catheter and a supporting structure secured over or along the catheter at a first location proximal to the balloon and at a second location distal to the balloon. Inflation of the balloon reconfigures the supporting structure to urge the first location and the second location towards one another thereby inhibiting longitudinal elongation of the balloon relative to the catheter. The supporting structure may surround, support, or otherwise extend over the entire length of the balloon and allows for the balloon to retain increased flexibility which enables the balloon to bend or curve even at relatively high inflation pressures.
    Type: Grant
    Filed: October 1, 2015
    Date of Patent: February 12, 2019
    Inventor: Timothy A. M. Chuter
  • Patent number: 10182841
    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: June 16, 2015
    Date of Patent: January 22, 2019
    Assignee: C.R. BARD, INC.
    Inventors: Corey Rousu, Karen DiClaudio
  • Patent number: 10166374
    Abstract: A cage can be positioned around a medical balloon, such as an angioplasty balloon, to assist in a medical procedure. The cage can include a plurality of strips, each extending between a set of rings including first and second rings. As the balloon expands, the first and second rings move closer together and allow the strips to expand outward. The cage may have wedge dissectors on the strips.
    Type: Grant
    Filed: September 16, 2016
    Date of Patent: January 1, 2019
    Assignee: Cagent Vascular, LLC
    Inventors: Robert M. Giasolli, Peter Schneider, Peter Johansson
  • Patent number: 10159821
    Abstract: This patent document discloses perfusion catheters and related methods for treating complications related to CTO interventions or dilating a vessel occlusion while maintaining a passage through the treated vessel segment. A perfusion catheter can include a balloon formed of an inflatable tube and an elongate shaft having a lumen for providing inflation fluid to, or withdrawing inflation fluid from, the balloon. The inflatable tube can be coiled in a helical manner around a central axis into a series of windings. Adjacent windings can be stacked against and bonded to each other, and an inner surface of the series of windings, when inflated, can define the passage. The elongate shaft can be eccentrically attached to a proximal portion of the balloon and the shaft's lumen can be in fluid communication with the interior of the balloon, specifically the inflatable tube. The inflatable tube can include two different polymer tubes, one slightly smaller than the other.
    Type: Grant
    Filed: September 10, 2015
    Date of Patent: December 25, 2018
    Assignee: Teleflex Innovations S.à.r.l.
    Inventors: Howard Root, Chad Kugler, Dean Peterson, Joshua Brenizer
  • Patent number: 10143577
    Abstract: A balloon for medical treatments such as percutaneous transluminal coronary angioplasty (PTCA), delivery of a vascular stents or stent grafts, employs reinforcement materials that are patterned so as to promote consistent folding of the balloon. Methods and apparatus for biocidal treatment using such a balloon, including balloons with fiber fabric reinforcements.
    Type: Grant
    Filed: September 12, 2016
    Date of Patent: December 4, 2018
    Assignee: C.R. BARD, INC.
    Inventor: Charles L. Simpson
  • Patent number: 10111997
    Abstract: Systems and methods are provided for performing a medical procedure within a patient's body that involves a thoracic duct including an ostium communicating with the patient's venous system. An apparatus is provided that includes a catheter including proximal and distal ends and a lumen extending therebetween. An expandable sealing member is carried beyond the distal end that is expandable from a delivery condition to a deployed condition in which the sealing member defines a concave contact surface shaped for engaging a vessel wall surrounding the outlet of the thoracic duct. The sealing member includes an aspiration port in the contact surface communicating with the catheter lumen for removing fluid from the thoracic duct.
    Type: Grant
    Filed: January 21, 2014
    Date of Patent: October 30, 2018
    Inventors: Matthew J. Callaghan, Stephen A. Leeflang, Christian S. Eversull
  • Patent number: 10092732
    Abstract: An example of recovery catheter assembly comprises an actuator element and a mechanically radially expandable and contractible recovery device operably connected to the actuator element. The recovery device has proximal and distal blocking portions and a central portion therebetween. The recovery device is at least partially placeable in a first, radially collapsed configuration and in a second, radially expanded configuration by manipulation of the actuator element. When in the second, radially expanded configuration, the proximal and distal blocking portions have radial dimensions greater than the radial dimension of the central portion thereby at least partially defining a collection chamber at the central portion.
    Type: Grant
    Filed: January 14, 2016
    Date of Patent: October 9, 2018
    Assignee: Nfusion Vascular Systems, LLC
    Inventors: Richard Eustis Fulton, III, Richard Lotti
  • Patent number: 10085864
    Abstract: Systems and methods are adapted for treating the carotid artery. The systems include interventional catheters and blood vessel access devices that are adapted for transcervical insertion into the carotid artery. Embodiments of the systems and methods can be used in combination with embolic protection systems including blood flow reversal mechanisms, arterial filters, and arterial occlusion devices.
    Type: Grant
    Filed: May 22, 2017
    Date of Patent: October 2, 2018
    Assignee: Silk Road Medical, Inc.
    Inventors: Tony M. Chou, Michi E. Garrison, Gregory M. Hyde, Richard Renati, Alan Schaer
  • Patent number: 9993359
    Abstract: The invention relates to a balloon catheter comprising a catheter tube, an inflatable balloon, the ends of which are attached to the catheter tube, and a stent attached around the balloon. The stent extends at least partly along the length of the balloon. In an uninflated state, at least the outside surface of the balloon not covered by the stent is provided with a relief structure which is substantially disappeared in an inflated state of the balloon. The invention also relates to a method for manufacturing such a balloon catheter.
    Type: Grant
    Filed: June 20, 2014
    Date of Patent: June 12, 2018
    Assignee: C.R. BARD, INC.
    Inventors: Hendrik Jozef Maria Meens, Derk Trip
  • Patent number: 9993587
    Abstract: A system for facilitating fluid connection between cannulae and a blood pump. The system includes a cannula having a distal end adapted to be in fluid communication with the circulatory system and a proximal end configured to couple to an inlet of the blood pump. Further included is a tunneling device configured to be inserted into a body of a patient to direct the proximal end of the cannula adjacent to the inlet and including a second connecting structure. Further included is a plug which has a first plug part and a second plug part. The first plug part includes a second connecting structure, the first and second connecting structures being selectively engageable. The second plug part is configured to be inserted in the proximal end of the cannula. The first and second plug parts are selectively disengageable to allow in situ disconnection between the cannula and tunneling device.
    Type: Grant
    Filed: May 7, 2015
    Date of Patent: June 12, 2018
    Assignee: CircuLite, Inc.
    Inventors: Robert C. Farnan, Brad Aurilia, Cesar Gomez
  • Patent number: 9993325
    Abstract: An embolic protection device comprising an expandable structure and a catheter. The catheter has a distal region and a working channel dimensioned to slideably receive an interventional device. The expandable structure is attached to the distal region of the catheter. The expandable structure has an expandable working channel extension and a working channel opening, the expandable working channel extension has a proximal end and a distal end, the proximal end of the working channel extension is attached to a distal end of the working channel, and the distal end of the working channel extension forms the working channel opening. The working channel opening is disposed proximate an exterior surface of the expandable structure when the expandable structure is expanded. The working channel, working channel extension, and the working channel opening form a continuous lumen.
    Type: Grant
    Filed: September 30, 2014
    Date of Patent: June 12, 2018
    Assignee: Covidien LP
    Inventors: Brooke Ren, James Lininger, Richard Kusleika
  • Patent number: 9974946
    Abstract: An intravascular catheter is positionable within a blood vessel for use in transvenous stimulation of targets external to the wall of the blood vessel. The catheter includes a catheter body, a support at the distal end of the catheter body, and a plurality of electrodes carried by the support. At least a portion of the support being inflatable within the blood vessel to bias at least a portion of the plurality of electrodes into contact with the blood vessel wall.
    Type: Grant
    Filed: April 7, 2015
    Date of Patent: May 22, 2018
    Inventors: Richard A Glenn, Stephen C Purcell
  • Patent number: 9913964
    Abstract: A method for dilating a stenotic region in an airway of a patient may include advancing a balloon catheter through the airway of the patient to position an inflatable balloon of the catheter within at least a portion of the stenotic region, maintaining a position of the catheter relative to the patient, and inflating the balloon of the catheter to dilate the stenotic region of the airway. A system for dilating a stenotic region in an airway of a patient may include a catheter shaft having an overall length of less than 70 cm, an inflatable balloon disposed along a distal portion of the catheter shaft, and a stylet.
    Type: Grant
    Filed: September 24, 2009
    Date of Patent: March 13, 2018
    Assignee: Acclarnet, Inc.
    Inventors: Ketan P. Muni, Hung V. Ha, Chi Nguyen, Randy S. Chan, John Y. Chang
  • Patent number: 9895516
    Abstract: The present invention provides insertable medical devices having elastic surfaces associated with bioactive agent-containing microparticulates and a coating material. Upon expansion of the elastic surfaces the microparticulates can be released to a subject.
    Type: Grant
    Filed: August 3, 2016
    Date of Patent: February 20, 2018
    Assignee: SURMODICS, INC.
    Inventors: James Howard Arps, Andrew G. Bach
  • Patent number: 9883961
    Abstract: A medical device includes an expandable element for location in a blood vessel. The expandable element is movable between a collapsed configuration and an expanded configuration. In the expanded configuration, at least a part of a longitudinal axis of the expandable element is curved in three-dimensional space. The medical device can be stent deployment device which includes an elongate catheter shaft and an inflatable balloon.
    Type: Grant
    Filed: October 12, 2009
    Date of Patent: February 6, 2018
    Assignee: Veryan Medical Limited
    Inventors: Kevin Heraty, Liam Mullins, Paul Gilson, Martin Burke, Ray Blowick
  • Patent number: 9877742
    Abstract: A thrombectomy catheter includes a catheter body having first and second lumens formed therein, and a flow directing mechanism upon a distal body end forming a channel for conveying fluid between an outlet and an inlet fluidly connected with the first and second lumens. The channel axially and circumferentially advances about the catheter body, and is positioned between the outlet and inlet such that fluid conveyed by the channel enters a suction stream flowing to the inlet and entraining material of disrupted thrombus.
    Type: Grant
    Filed: August 7, 2014
    Date of Patent: January 30, 2018
    Assignee: Cook Medical Technologies LLC
    Inventors: Keith Milner, Angela Barnett
  • Patent number: 9872940
    Abstract: A drug coating layer which is a drug coating layer having a morphological form including a plurality of elongated bodies having long axes that each crystal of a water-insoluble drug independently has on a substrate surface, in which the long axes of the elongated bodies are nearly linear in shape, and the long axes of the elongated bodies form an angle in a predetermined range with respect to a substrate plane with which the long axis of the elongated body intersects. The drug coating layer can provide low toxicity and a high intravascular stenosis inhibitory effect.
    Type: Grant
    Filed: March 28, 2014
    Date of Patent: January 23, 2018
    Assignee: TERUMO KABUSHIKI KAISHA
    Inventors: Keiko Yamashita, Hiroshi Goto, Shigenori Nozawa, Katsumi Morimoto, Hiroaki Kasukawa
  • Patent number: 9861423
    Abstract: A device, system, and method for enhancing cooling uniformity and efficiency of cryogenic fluids and providing a treatment element the shape of which can be adjusted for multiple purposes. The device may include a balloon catheter and fluid dispersion element, the fluid dispersion element directing the flow of coolant from a fluid injection element the interior wall of the balloon. The method of changing the shape of the treatment element may include retracting and extending a shaft to which the distal neck of a balloon is coupled, so that the balloon goes from a first shape to a second shape.
    Type: Grant
    Filed: November 23, 2015
    Date of Patent: January 9, 2018
    Assignee: Medtronic CryoCath LP
    Inventors: Jean-Pierre Lalonde, Scott W. Davie, Dan Wittenberger
  • Patent number: 9833555
    Abstract: Interventional procedures on the carotid arteries are performed through a transcervical access while retrograde blood flow is established from the internal carotid artery to a venous or external location. A system for use in accessing and treating a carotid artery includes an arterial access device, a shunt fluidly connected to the arterial access device, and a flow control assembly coupled to the shunt and adapted to regulate blood flow through the shunt between at least a first blood flow state and at least a second blood flow state. The flow control assembly includes one or more components that interact with the blood flow through the shunt.
    Type: Grant
    Filed: September 2, 2014
    Date of Patent: December 5, 2017
    Assignee: Silk Road Medical, Inc.
    Inventors: Enrique Criado, Tony M. Chou, Michi E. Garrison, Gregory M. Hyde, Alan Schaer, Richard Renati
  • Patent number: 9833599
    Abstract: An apparatus is provided that is operable in different modes to perform various functions for treating a body lumen. The apparatus includes a shaft including proximal and distal ends, a lumen extending there between, and a balloon on the distal end. 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 valve may be biased to be closed, e.g., by a spring element disposed within the balloon. Optionally, the apparatus also includes an actuator for expanding a helical member within the balloon interior, e.g., either before or after expanding the balloon, such that the helical member and balloon may adopt an expanded helical shape for removing material within a body lumen.
    Type: Grant
    Filed: January 18, 2015
    Date of Patent: December 5, 2017
    Assignee: Hotspur Technologies, Inc.
    Inventors: Jeffrey A. Krolik, Gwendolyn Watanabe, Juan Domingo, Ray Betelia, James H. Dreher, Daryush Mirzaee, Lucas Fernandez
  • Patent number: 9757137
    Abstract: Apparatus and methods are provided for delivering fluid into a body lumen during a medical procedure. A distal end of an apparatus may be introduced into a body lumen, and a valve on the distal end may be opened to deliver fluid through a first lumen into the body lumen, e.g., contrast and/or other diagnostic or therapeutic agents. The valve may be closed, and a procedure may be performed within the body lumen, e.g., using a treatment element carried on the distal end. For example, the treatment element may include a balloon that may be inflated when fluid is delivered through the first lumen with the valve closed. Optionally, a prosthesis, energy source, drug platform, and the like may be carried by the balloon for treating the body lumen. In various embodiments, the valve may be located proximal or distal to the treatment element.
    Type: Grant
    Filed: July 20, 2015
    Date of Patent: September 12, 2017
    Assignee: HOTSPUR TECHNOLOGIES, INC.
    Inventors: Jeffrey A. Krolik, Juan Domingo, Gwendolyn Watanabe, Ray Betelia, Lucas Fernandez
  • Patent number: 9717513
    Abstract: A device for fracturing calcifications in heart valves including a catheter (12, 22, 42) configured for percutaneous delivery to a heart valve, an fracture-producing element (14, 26, 46, 64, 66,82, 124, 152) disposed at a distal portion of the catheter and operative to vibrate and mechanically fracture calcifications when brought into contact with a calcification at a leaflet of the heart valve, and an energy source (34, 47, 79, 98, 152) operative to vibrate the fracture-producing element so that the fracture-producing element fractures the calcification without necessarily removing the calcification from the leaflet. The device may further comprise a valvuloplasty balloon (30), an embolic protection net (56) and a protective sleeve (110, 130).
    Type: Grant
    Filed: July 27, 2009
    Date of Patent: August 1, 2017
    Assignee: Pi-Cardia Ltd.
    Inventor: Erez Golan
  • Patent number: 9655755
    Abstract: Systems and methods are adapted for treating the carotid artery. The systems include interventional catheters and blood vessel access devices that are adapted for transcervical insertion into the carotid artery. Embodiments of the systems and methods can be used in combination with embolic protection systems including blood flow reversal mechanisms, arterial filters, and arterial occlusion devices.
    Type: Grant
    Filed: February 16, 2016
    Date of Patent: May 23, 2017
    Assignee: Silk Road Medical, Inc.
    Inventors: Tony M. Chou, Michi E. Garrison, Gregory M. Hyde, Richard Renati, Alan Schaer
  • Patent number: 9604036
    Abstract: A balloon catheter is provided that may be used to dilate hardened regions of a stenosis. The balloon catheter is provided with one or more dilation elements that extend along a surface of a balloon. Each dilation element is connected to an outer surface of the balloon by a connector. The connector is sufficiently sized and designed to undergo stress-induced plastic deformation incurred during blow molding so that a significant portion of each of the dilation elements does not become absorbed into the wall of the final blow molded balloon, thereby maintaining the structural integrity of each of the dilation elements.
    Type: Grant
    Filed: May 2, 2012
    Date of Patent: March 28, 2017
    Assignee: COOK MEDICAL TECHNOLOGIES LLC
    Inventors: David G. Burton, Darin G. Schaeffer, David A. Drewes
  • Patent number: 9480824
    Abstract: A medical device having an elongate support structure and an inflatable balloon including a first-end portion secured to the support structure at a first location, a second-end portion secured to the support structure at a second location distal to the first location, and a middle-body portion. The first-end portion has a wall thickness greater than a wall thickness of the middle-body portion; the balloon defines a sealed interior through which the support structure extends. The balloon being stretch-mounted to the support structure in tension relative to the support structure; the balloon is formed in a diamond-like configuration that transitions to a substantially spherical configuration when the balloon is inflated to a inflation pressure that is at least about ten percent greater than atmospheric pressure, such that when inflated to the inflation pressure and anchored in an anatomical body region, resists movement of the support structure relative to the balloon.
    Type: Grant
    Filed: December 23, 2013
    Date of Patent: November 1, 2016
    Assignee: Hologic, Inc.
    Inventors: Christopher Charles Kaiser, Jessica Tina Schenck
  • Patent number: 9445896
    Abstract: A medical device for treating a heart valve insufficiency, with an endoprosthesis which can be introduced into a patient's body and expanded to secure a heart valve prosthesis in the patient's aorta with a catheter. In an embodiment, the endoprosthesis has a plurality of positioning arches configured to be positioned with respect to a patient's aorta and a plurality of retaining arches to support a heart valve prosthesis. The endoprosthesis includes a collapsed mode during the process of introducing it into the patient's body and an expanded mode when it is implanted. The endoprosthesis may be introduced into a patient's body and expanded via a catheter. In an embodiment, the catheter has first and second slide mechanisms configured to independently manipulate first and second sleeve elements to sequentially expand the endoprosthesis from the collapsed mode to the expanded mode.
    Type: Grant
    Filed: July 2, 2009
    Date of Patent: September 20, 2016
    Assignee: JenaValve Technology, Inc.
    Inventors: Helmut Straubinger, Johannes Jung