Patents by Inventor Jack Chu

Jack Chu has filed for patents to protect the following inventions. This listing includes patent applications that are pending as well as patents that have already been granted by the United States Patent and Trademark Office (USPTO).

  • Publication number: 20110196477
    Abstract: A polymer coating/ring is employed to aid in the sealing and connection of modular elements used in body flow lumens for the exclusion and bypass of diseased regions of the flow lumen, such as where aneurysm occurs adjacent to branching blood vessels.
    Type: Application
    Filed: April 21, 2011
    Publication date: August 11, 2011
    Applicant: Medtronic Vascular, Inc.
    Inventors: PREMA GANESAN, JONATHAN MORRIS, DAVE R. ERICKSON, MATTHEW RUST, CURTIS HANSON, JACK CHU, CHARLES THOMAS
  • Patent number: 7955380
    Abstract: A method of securing a prosthesis placed at a desired site in a passageway of a human body comprises delivering a fastener having a proximal piercing end portion and a distal piercing end portion to a site where a prosthesis having a tubular wall has been placed in the passageway, which has a wall, advancing the proximal piercing end portion beyond the prosthesis, penetrating the proximal piercing end portion into the wall of the passageway without passing the proximal piercing end portion through the tubular wall of the prosthesis, and passing the distal piercing end portion through the tubular wall of the prosthesis and into the wall of the passageway. One surgical fastener delivery apparatus for delivering a surgical fastener to a target site comprises a support having a first end, a second end, and a longitudinal axis and being adapted for placement in a passageway in a human body.
    Type: Grant
    Filed: March 17, 2006
    Date of Patent: June 7, 2011
    Assignee: Medtronic Vascular, Inc.
    Inventors: Jack Chu, Jonathan Morris, James Machek
  • Publication number: 20110084683
    Abstract: A low powered activation electronic device includes a power source, an electronic circuit, having two spaced apart electrodes, electrically connected to the power source to form an opened circuit, and two fabric contacts made of textile material provided at the two electrodes of the electronic circuit, wherein the electronic circuit is formed a closed circuit to activate the electronic device in responsive to a physical touch by a human operator at the two fabric contacts.
    Type: Application
    Filed: August 13, 2010
    Publication date: April 14, 2011
    Inventor: Jack Chu
  • Publication number: 20110065355
    Abstract: A fabric product includes a body having a skin made by interweaving a plurality of textile fabrics and a low powered activation arrangement which includes an electronic unit and one or more conductive threads extended underneath the skin of the body. The electronic unit includes a power source, an activation circuit which is a low powered activation circuit, and an operator. Each of the conductive threads has a proximal end portion electrically coupled with the activation circuit and a distal end portion which is extended to an outer surface of the skin of the body at a predetermined location thereof and is arranged in such a manner that when the distal end portion of the conductive thread is being contacted, the activation circuit is activated to actuate the operator.
    Type: Application
    Filed: September 11, 2009
    Publication date: March 17, 2011
    Inventor: Jack Chu
  • Patent number: 7825346
    Abstract: A low powered activation electronic device includes a power source, an electronic circuit, having two spaced apart electrodes, electrically connected to the power source to form an opened circuit, and two fabric contacts made of textile material provided at the two electrodes of the electronic circuit, wherein the electronic circuit is formed a closed circuit to activate the electronic device in responsive to a physical touch by a human operator at the two fabric contacts.
    Type: Grant
    Filed: March 16, 2007
    Date of Patent: November 2, 2010
    Inventor: Jack Chu
  • Patent number: 7815656
    Abstract: The invention provides a method of providing an endovascular bypass. The method includes the steps of inserting an elastic needle carrying a guidewire adjacent an ostium via a catheter and extending the needle through a branch vessel wall. The method continues by extending the needle through the extravascular space and inserting the needle through a main vessel wall to create an opening. The needle is retracted, leaving the guidewire in place. A bypass stent graft is inserted along the guidewire to provide a pathway between the branch vessel and the main vessel, and the inserted bypass stent graft is expanded. The branch vessel is occluded between the ostium of the bypass stent graft and the main vessel, and a main stent graft is inserted in the main vessel proximate the opening in the main vessel wall.
    Type: Grant
    Filed: August 11, 2006
    Date of Patent: October 19, 2010
    Assignee: Medtronic Vascular, Inc.
    Inventors: Matthew Rust, Prema Ganesan, Curtis Hanson, Jack Chu
  • Publication number: 20100217306
    Abstract: Methods, devices and systems are described for treating venous insufficiency in which the vein is compressed at least partially along a treatment zone. A system can be provided including an injection device, such as a glue gun, that is operably connected to a delivery catheter that can be advanced across a treatment zone in the vein. The delivery catheter can be used to deliver one, two, or more boluses of media (e.g., cyanoacrylate) to occlude the vein along different spaced-apart sections of the treatment zone. External compression can also be applied to the vein by a compression element, such as a hand or multifunctional ultrasound transducer, to occlude portions of the vein along the treatment zone prior to or during the introduction of the boluses of media.
    Type: Application
    Filed: February 22, 2010
    Publication date: August 26, 2010
    Applicant: SAPHEON, INC.
    Inventors: Rodney D. Raabe, Jack Chu, Don Crawford, Jan R. Lau, Xiucai Zhang
  • Publication number: 20100217313
    Abstract: Methods, devices and systems are described for treating venous insufficiency in which the vein is compressed at least partially along a treatment zone. A system can be provided including an injection device, such as a glue gun, that is operably connected to a delivery catheter that can be advanced across a treatment zone in the vein. The delivery catheter can be used to deliver one, two, or more boluses of media (e.g., cyanoacrylate) to occlude the vein along different spaced-apart sections of the treatment zone. External compression can also be applied to the vein by a compression element, such as a hand or multifunctional ultrasound transducer, to occlude portions of the vein along the treatment zone prior to or during the introduction of the boluses of media.
    Type: Application
    Filed: February 22, 2010
    Publication date: August 26, 2010
    Applicant: Sapheon, Inc.
    Inventors: Rodney D. Raabe, Jack Chu, Don Crawford, Jan R. Lau, Zhenyu Zuo
  • Patent number: 7727199
    Abstract: Method and devices to administer a bioactive material within a vessel while maintaining nearly-constant pressure within the vessel are disclosed. In one embodiment the methods and devices include a multi-lumen catheter to administer bioactive materials and simultaneously drain or evacuate excess fluid or bio-inactive materials at an aneurysm site within a vessel.
    Type: Grant
    Filed: March 3, 2006
    Date of Patent: June 1, 2010
    Assignee: Medtronic Vascular, Inc.
    Inventors: Brian Fernandes, Jack Chu
  • Publication number: 20090259290
    Abstract: A method includes deploying a fenestration segment stent-graft into a main vessel such that a fenestration section of the fenestration segment stent-graft covers a first branch vessel emanating from the main vessel. The fenestration segment stent-graft includes a proximal section, a distal section, and the fenestration section attached to and between the proximal section and the distal section. The fenestration section has a greater resistance to tearing than the proximal section and the distal section facilitating formation of a collateral opening aligned with the branch vessel in the fenestration section.
    Type: Application
    Filed: April 14, 2008
    Publication date: October 15, 2009
    Applicant: Medtronic Vascular, Inc.
    Inventors: Walter Bruszewski, Trevor Greenan, Jack Chu, David Erickson, Jonathan Morris, Prema Ganesan, Curtis Hanson, Matthew Rust, Charles Thomas
  • Publication number: 20090125096
    Abstract: A stent graft with pins, a stent graft including a tubular graft having a perimeter and a central axis; at least one stent ring operably connected about the perimeter, the stent ring having a plurality of struts connected in a sinusoidal pattern, at least one of the plurality of struts having a hole; and a pin having a free end. The pin is secured in the hole with the free end directed outwardly from the central axis.
    Type: Application
    Filed: November 12, 2007
    Publication date: May 14, 2009
    Applicant: Medtronic Vascular, Inc.
    Inventors: Jack Chu, Brendan Cunniffe, Matthew Rust, Trevor Greenan, Frank Yang
  • Publication number: 20080262595
    Abstract: A stent graft includes at least one aperture extending through the main body thereof, into which an extension portion may be deployed for positioning within an adjacent branch flow lumen. The extension portions include self biasing features, wherein the extension is biased into engagement with the main body to seal the interface thereof. Additionally, the extension portion may be configured for tortuous or deviated anatomy, to enable sealing of the extension portion with the body while extending the extension portion in a substantially non-radial direction from the main body.
    Type: Application
    Filed: April 19, 2007
    Publication date: October 23, 2008
    Applicant: Medtronic Vascular, Inc.
    Inventors: Jack Chu, David R. Erickson, Jonathan Morris, Prema Ganesan, Curtis Hanson, Matthew Rust, Charles Thomas, James Machek
  • Publication number: 20080256451
    Abstract: In a client-server system where a client system presents a browser for user interaction, a browser user interface includes functionality for handling dynamic interface elements received by the browser in connection with received pages, presented as part of the browser user interface and modified in response to selected user input without requiring further interaction with a server. In addition to, or in place of, dynamic interface elements such as slide sheets, the browser user interface might also include a rotation display area, tool displays that can overlay a page, opaquely or semi-transparently, menu structures, and an ability for the user to modify a page layout without requiring server interaction.
    Type: Application
    Filed: June 24, 2008
    Publication date: October 16, 2008
    Inventors: Jack Chu, Chris Mancini, Lawrence Morrisroe
  • Publication number: 20080256457
    Abstract: In a client-server system where a client system presents a browser for user interaction, a browser user interface includes functionality for handling dynamic interface elements received by the browser in connection with received pages, presented as part of the browser user interface and modified in response to selected user input without requiring farther interaction with a server. In addition to, or in place of, dynamic interface elements such as slide sheets, the browser user interface might also include a rotation display area, tool displays that can overlay a page, opaquely or semi-transparently, menu structures, and an ability for the user to modify a page layout without requiring server interaction.
    Type: Application
    Filed: June 24, 2008
    Publication date: October 16, 2008
    Inventors: Jack Chu, Chris Mancini, Lawrence Morrisroe
  • Publication number: 20080256467
    Abstract: In a client-server system where a client system presents a browser for user interaction, a browser user interface includes functionality for handling dynamic interface elements received by the browser in connection with received pages, presented as part of the browser user interface and modified in response to selected user input without requiring further interaction with a server. In addition to, or in place of, dynamic interface elements such as slide sheets, the browser user interface might also include a rotation display area, tool displays that can overlay a page, opaquely or semi-transparently, menu structures, and an ability for the user to modify a page layout without requiring server interaction.
    Type: Application
    Filed: June 24, 2008
    Publication date: October 16, 2008
    Inventors: Jack Chu, Chris Mancini, Lawrence Morrisroe
  • Publication number: 20080249511
    Abstract: Treatment of aneurysmal blood vessels with local delivery of therapeutic agents thereby reduces or lessens the severity of an aneurysm, and, where used in conjunction with the placement of an excluding device, provides for more rapid recovery of the blood vessel from any disturbance occurring during placement of the excluding device. Therapeutic agents are placed in the aneurysmal site in a time-release carrier medium, such that the therapeutic agent is released into the aneurysmal site over a period of time without the need to provide systemic introduction of the therapeutic agent. The carrier may be introduced through the patient's dermis, such as with the use of a laparoscope, or intravascularly, through the use of a catheter. The carrier may be in a solid matrix, viscous liquid or liquid form.
    Type: Application
    Filed: June 3, 2008
    Publication date: October 9, 2008
    Applicant: Medtronic Vascular, Inc.
    Inventors: Jack Chu, Brian Raze
  • Publication number: 20080221660
    Abstract: Methods for ameliorating stent graft migration and endoleak using treatment site-specific platelet gel compositions in combination with stent grafts are disclosed. Also disclosed are platelet gel compositions directly to treatment sites before, during or after stent graft implantation. Additional embodiments include medical devices having platelet gel coatings and/or platelet gel delivery devices useful for treating aneurysms.
    Type: Application
    Filed: March 11, 2008
    Publication date: September 11, 2008
    Applicant: Medtronic Vascular, Inc.
    Inventors: Jack Chu, Jonathan Morris, Josiah Wilcox, Brian Fernandes
  • Publication number: 20080187524
    Abstract: The present invention encompasses methods and apparatus for minimizing the risks inherent in endovascular grafting for blood vessel therapy and repair. The invention involves delivering adult stem cells, embryonic stem cells, progenitor cells, fibroblasts, or smooth muscle cells to the diseased blood vessel.
    Type: Application
    Filed: April 3, 2008
    Publication date: August 7, 2008
    Applicant: Medtronic Vascular, Inc.
    Inventors: Brian Fernandes, Jack Chu, Prema Ganesan
  • Publication number: 20080183158
    Abstract: A method and device for the treatment of an aneurysm are provided. Different therapeutic agents are delivered to the aneurysmal site by a reservoir and delivery means in a localized, and, in some embodiments, time-released regimen, to treat, limit and reduce the severity of the aneurysm.
    Type: Application
    Filed: April 3, 2008
    Publication date: July 31, 2008
    Applicant: Medtronic Vascular, Inc.
    Inventors: Jack Chu, Dave Erickson, Prema Genesan, Jonathan Morris
  • Patent number: 7405372
    Abstract: A low powered activation electronic device includes a power source, an electronic circuit, having two spaced apart electrodes, electrically connected to the power source to form an opened circuit, and two fabric contacts made of textile material provided at the two electrodes of the electronic circuit, wherein the electronic circuit is formed a closed circuit to activate the electronic device in responsive to a physical touch by a human operator at the two fabric contacts.
    Type: Grant
    Filed: August 26, 2005
    Date of Patent: July 29, 2008
    Inventor: Jack Chu