Patents by Inventor Christopher Ken

Christopher Ken 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: 20250152386
    Abstract: An implantable stent for treating hypertension, the stent having a non-circular cross-section so as to reshape the artery in which the implant is deployed so as to increase strain in the arterial walls to amplify strain signals in the arterial walls by the baroreceptors of the artery. The stent can further include pulsatility enhancing windows of the implantable frame to enhance pulsatility of the vessel wall subsequent implantation.
    Type: Application
    Filed: January 15, 2025
    Publication date: May 15, 2025
    Applicant: ARCHimedes Vascular, LLC
    Inventors: Chung Hao Yeh, Jennifer Gong, Brent Seybold, Suji Shetty, Edward F. Ruppel, JR., Robert Stern, Christopher Ken
  • Publication number: 20210077283
    Abstract: An implantable frame comprises a plurality of corner structures configured to decrease pressure to the vessel wall and define pulsatility enhancing windows of the implantable frame. The corner structures may comprise plurality of neighboring longitudinal struts that extend in a longitudinal direction of the blood vessel when placed to form the vessel wall to a substantially polygonal cross-section and distribute pressure loading of the corner structure among the plurality of neighboring longitudinal struts to improve biocompatibility. The corner structures also allow increased forming of the vessel wall and can provide stretching of the vessel wall to enhance pulsatility of the vessel wall.
    Type: Application
    Filed: August 28, 2020
    Publication date: March 18, 2021
    Inventors: Chung Hao Yeh, Jennifer Gong, Brent Seybold, Christopher Ken, Suji Shetty, Edward F. Ruppel, JR., Robert Stern
  • Patent number: 10786372
    Abstract: An implantable frame comprises a plurality of corner structures configured to decrease pressure to the vessel wall and define pulsatility enhancing windows of the implantable frame. The corner structures may comprise plurality of neighboring longitudinal struts that extend in a longitudinal direction of the blood vessel when placed to form the vessel wall to a substantially polygonal cross-section and distribute pressure loading of the corner structure among the plurality of neighboring longitudinal struts to improve biocompatibility. The corner structures also allow increased forming of the vessel wall and can provide stretching of the vessel wall to enhance pulsatility of the vessel wall.
    Type: Grant
    Filed: October 23, 2015
    Date of Patent: September 29, 2020
    Assignee: Vascular Dynamics, Inc.
    Inventors: Chung Hao Yeh, Jennifer Gong, Brent Seybold, Christopher Ken, Suji Shetty, Edward F. Ruppel, Jr., Robert Stern
  • Patent number: 10653513
    Abstract: Systems and methods for screening a subject for a therapy are described. A mechanical stimulation device positioned near at target location of a blood vessel to provide a mechanical stimulus to the blood vessel. The mechanical stimulus increases strain in one or more regions of the blood vessel, such as by modifying the cross-sectional geometry and/or area of the blood vessel to have different regions of different curvature A baroreflex or related physiological response in response to the mechanical stimulation is detected. In response to the detected response, it is determined whether the subject is appropriate for the therapy and/or which of a plurality of implants with different geometries and/or cross-sectional areas is most optimally suited for deployment in the subject.
    Type: Grant
    Filed: February 21, 2018
    Date of Patent: May 19, 2020
    Assignee: Vascular Dynamics, Inc.
    Inventors: Brent Seybold, Christopher Ken, Jennifer Gong, Suji Shetty, Robert Stern, Edmund Roschak
  • Publication number: 20180235745
    Abstract: Systems and methods for screening a subject for a therapy are described. A mechanical stimulation device positioned near at target location of a blood vessel to provide a mechanical stimulus to the blood vessel. The mechanical stimulus increases strain in one or more regions of the blood vessel, such as by modifying the cross-sectional geometry and/or area of the blood vessel to have different regions of different curvature A baroreflex or related physiological response in response to the mechanical stimulation is detected. In response to the detected response, it is determined whether the subject is appropriate for the therapy and/or which of a plurality of implants with different geometries and/or cross-sectional areas is most optimally suited for deployment in the subject.
    Type: Application
    Filed: February 21, 2018
    Publication date: August 23, 2018
    Inventors: Brent SEYBOLD, Christopher KEN, Jennifer GONG, Suji SHETTY, Robert STERN, Edmund ROSCHAK
  • Publication number: 20160038317
    Abstract: An implantable frame comprises a plurality of corner structures configured to decrease pressure to the vessel wall and define pulsatility enhancing windows of the implantable frame. The corner structures may comprise plurality of neighboring longitudinal struts that extend in a longitudinal direction of the blood vessel when placed to form the vessel wall to a substantially polygonal cross-section and distribute pressure loading of the corner structure among the plurality of neighboring longitudinal struts to improve biocompatibility. The corner structures also allow increased forming of the vessel wall and can provide stretching of the vessel wall to enhance pulsatility of the vessel wall.
    Type: Application
    Filed: October 23, 2015
    Publication date: February 11, 2016
    Inventors: Chung Hao Yeh, Jennifer Gong, Brent Seybold, Christopher Ken, Suji Shetty, Ted Ruppel, Robert Stern
  • Publication number: 20130304102
    Abstract: Stimulation of a stretch receptor response to the cardiac cycle is enhanced by constraining a region of a blood vessel wall upstream and/or downstream of a baroreceptor. The constraint may be external or internal and will typically be effected using a circumferential restraint placed over or within the blood vessel.
    Type: Application
    Filed: May 8, 2013
    Publication date: November 14, 2013
    Applicant: Vascular Dynamics, Inc.
    Inventors: Yossi Gross, Chung Hao Yeh, Christopher Ken, Brent Seybold, Jennifer Gong
  • Publication number: 20070270708
    Abstract: The invention provides methods, devices and systems for collecting breast ductal fluid comprising cellular material and other useful markers for analysis. The methods typically comprise access of at least one breast duct and collecting materials from that duct separate from all other ducts in the breast. The devices comprise ductal access devices that provide the opportunity to collect fluid from a single duct separate from all the other ducts in the breast. The systems employ the methods and devices that used together provide systems for analysis of a breast condition in a patient specific to accessed breast ducts. The methods, devices and systems are particularly useful for indentification of breast precancer or cancer in patient.
    Type: Application
    Filed: July 24, 2007
    Publication date: November 22, 2007
    Inventors: David Hung, Christopher Ken, Xuanmin He, Phillip Olsen, Julian Nikolchev, Shawn O'Leary, Pam Sayavong
  • Publication number: 20070191866
    Abstract: An extraction device for the removal of clots and foreign bodies from vasculature. The extractor device is connected to an elongate mandrel and is located within a longitudinally extending lumen defined by a catheter. A clot or foreign material extracted from a vessel by moving the extraction device and catheter proximally until the clot or foreign material does not perfuse a critical organ.
    Type: Application
    Filed: February 8, 2007
    Publication date: August 16, 2007
    Applicant: ENDOVASCULAR TECHNOLOGIES, INC.
    Inventors: Olin Palmer, David Hancock, Larry Voss, Christopher Ken
  • Publication number: 20050222580
    Abstract: A device for delivering an occlusion element, or other medical device, which includes a fluid dissolvable bond. The occlusion element is coupled to the delivery element with the fluid dissolvable bond. The bond may be dissolved by delivering a fluid through the delivery element either through the delivery element itself or through a tube positioned in the delivery element.
    Type: Application
    Filed: February 18, 2005
    Publication date: October 6, 2005
    Applicant: CONCENTRIC MEDICAL, INC., A Delaware Corporation
    Inventors: Hanson Gifford, Ivan Sepetka, Son Gia, Maria Aboytes, Ryan Pierce, Tina Patel, Christopher Ken
  • Patent number: 6905503
    Abstract: A device for delivering an occlusion element, or other medical device, which includes a fluid dissolvable bond. The occlusion element is coupled to the delivery element with the fluid dissolvable bond. The bond may be dissolved by delivering a fluid through the delivery element either through the delivery element itself or through a tube positioned in the delivery element.
    Type: Grant
    Filed: February 8, 2002
    Date of Patent: June 14, 2005
    Assignee: Concentric Medical, Inc.
    Inventors: Hanson S. Gifford, III, Ivan Sepetka, Son Gia, Maria Aboytes, Ryan Pierce, Tina Patel, Christopher Ken
  • Publication number: 20050033350
    Abstract: A vasoocclusive helical coil having a proximal end that carries a coupling member for attaching the coil to the distal end of a wire and a proximal winding that has a smaller diameter than adjacent windings whereby the proximal end of the coil is positioned radially inwardly of the main body of the coil.
    Type: Application
    Filed: August 31, 2004
    Publication date: February 10, 2005
    Applicant: Target Therapeutics, Inc.
    Inventors: Christopher Ken, Abhijit Acharya
  • Publication number: 20020177870
    Abstract: This invention is a surgical device. In particular, it is a low profile, single lumen catheter preferably having a movable seal or seat that allows the balloon to be inflated by sealing against the movable guidewire or against itself. An additional variation of the invention includes a non-removable guidewire situated in the catheter body in such a way to provide or add stiffness to the otherwise flexible distal section of the catheter during a procedure. An enhanced strain relief transition joint between significantly stiffer proximal section and the more flexible distal section is provided. Finally, methods of using the inventive balloon catheter are also shown.
    Type: Application
    Filed: May 25, 2001
    Publication date: November 28, 2002
    Inventors: Ivan Sepetka, Maureen Bensing, Diana Sanchez, Richard A. Helkowski, Christopher Ken, Mark Deem, Maria ` Aboytes, Hanson S. Gifford
  • Publication number: 20020133189
    Abstract: A device for delivering an occlusion element, or other medical device, which includes a fluid dissolvable bond. The occlusion element is coupled to the delivery element with the fluid dissolvable bond. The bond may be dissolved by delivering a fluid through the delivery element either through the delivery element itself or through a tube positioned in the delivery element.
    Type: Application
    Filed: February 8, 2002
    Publication date: September 19, 2002
    Applicant: CONCENTRIC MEDICAL, INC., A Delaware Corporation
    Inventors: Hanson S. Gifford, Ivan Sepetka, Son Gia, Maria Aboytes, Ryan Pierce, Tina Patel, Christopher Ken