Patents by Inventor Sunmi Chew

Sunmi Chew 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).

  • Patent number: 9883957
    Abstract: A luminal prosthesis comprises a plurality of radially expandable prosthetic stent segments arranged axially. Two or more of the prosthetic stent segments are separable upon expansion from the remaining prosthetic stent segments and a coupling structure connects at least some of the adjacent prosthetic stent segments to each other. The coupling structure permits a first group of the adjacent prosthetic stent segments to separate from a second group of the prosthetic stent segments upon differential radial expansion of the first group relative to the second group and the coupling structure maintains or forms an attachment between the adjacent prosthetic stent segments in the first group which have been expanded together. A delivery system and methods for deploying the multiple coupled prosthetic stent segments are also disclosed.
    Type: Grant
    Filed: February 18, 2014
    Date of Patent: February 6, 2018
    Assignee: J.W. Medical Systems Ltd.
    Inventors: Bernard Andreas, Sunmi Chew, Jeremy Dittmer, Jeff Grainger, Stephen Kao, David Lowe, Bryan Mao, Stephen Olson, David Snow, Craig Welk
  • Publication number: 20170128240
    Abstract: Devices and methods for treating aneurysms, such as abdominal aortic aneurysms (“AAA”) generally include one or more stent-graft devices. Some embodiments include self-expanding and/or balloon-expandable stent components and one or more graft components coupled with the stent components. Using various combinations of self-expanding stent members, balloon-expandable stent members, graft members, and/or anchoring members enhances the anchoring abilities of a stent-graft device to prevent leakage around it, and may further allow the device to be adjusted after placement at a site for treatment. Some embodiments further include a skirt graft member for further prevention of leakage and/or device slippage.
    Type: Application
    Filed: July 6, 2016
    Publication date: May 11, 2017
    Inventors: Mark Deem, Hanson S. Gifford, III, Benard Andreas, Sunmi Chew, Ron French, Doug Sutton
  • Patent number: 9408688
    Abstract: Devices and methods for treating aneurysms, such as abdominal aortic aneurysms (“AAA”) generally include one or more stent-graft devices. Some embodiments include self-expanding and/or balloon-expandable stent components and one or more graft components coupled with the stent components. Using various combinations of self-expanding stent members, balloon-expandable stent members, graft members, and/or anchoring members enhances the anchoring abilities of a stent-graft device to prevent leakage around it, and may further allow the device to be adjusted after placement at a site for treatment. Some embodiments further include a skirt graft member for further prevention of leakage and/or device slippage.
    Type: Grant
    Filed: February 5, 2014
    Date of Patent: August 9, 2016
    Assignee: The Foundry, LLC
    Inventors: Mark Deem, Hanson S. Gifford, III, Bernard Andreas, Sunmi Chew, Ron French, Doug Sutton
  • Publication number: 20150148792
    Abstract: A system applies, in a non-invasive manner, energy to a targeted tissue region employing a controlled source of energy, a multiple use applicator, and a single use, applicator-tissue interface carried by the applicator. The system can generate and apply energy in a controlled fashion to form a predefined pattern of lesions that provide therapeutic benefit, e.g., to moderate or interrupt function of the sweat glands in the underarm (axilla).
    Type: Application
    Filed: January 30, 2015
    Publication date: May 28, 2015
    Inventors: Steven KIM, Daniel FRANCIS, Jessi E. JOHNSON, Alexey SALAMINI, Ted SU, Dong Hoon CHUN, Yoav BEN-HAIM, Christopher LOEW, Leo KOPELOW, Sunmi CHEW
  • Publication number: 20140236282
    Abstract: A luminal prosthesis comprises a plurality of radially expandable prosthetic stent segments arranged axially. Two or more of the prosthetic stent segments are separable upon expansion from the remaining prosthetic stent segments and a coupling structure connects at least some of the adjacent prosthetic stent segments to each other. The coupling structure permits a first group of the adjacent prosthetic stent segments to separate from a second group of the prosthetic stent segments upon differential radial expansion of the first group relative to the second group and the coupling structure maintains or forms an attachment between the adjacent prosthetic stent segments in the first group which have been expanded together. A delivery system and methods for deploying the multiple coupled prosthetic stent segments are also disclosed.
    Type: Application
    Filed: February 18, 2014
    Publication date: August 21, 2014
    Applicant: J.W. Medical Systems Ltd.
    Inventors: Bernard Andreas, Sunmi Chew, Jeremy Dittmer, Jeff Grainger, Stephen Kao, David Lowe, Bryan Mao, Steve Olson, David Snow, Craig Welk
  • Publication number: 20140155984
    Abstract: Devices and methods for treating aneurysms, such as abdominal aortic aneurysms (“AAA”) generally include one or more stent-graft devices. Some embodiments include self-expanding and/or balloon-expandable stent components and one or more graft components coupled with the stent components. Using various combinations of self-expanding stent members, balloon-expandable stent members, graft members, and/or anchoring members enhances the anchoring abilities of a stent-graft device to prevent leakage around it, and may further allow the device to be adjusted after placement at a site for treatment. Some embodiments further include a skirt graft member for further prevention of leakage and/or device slippage.
    Type: Application
    Filed: February 5, 2014
    Publication date: June 5, 2014
    Applicant: The Foundry, LLC
    Inventors: Mark Deem, Hanson S. Gifford, III, Bernard Andreas, Sunmi Chew, Ron French, Doug Sutton
  • Patent number: 8679171
    Abstract: Devices and methods for treating aneurysms, such as abdominal aortic aneurysms (“AAA”) generally include one or more stent-graft devices. Some embodiments include self-expanding and/or balloon-expandable stent components and one or more graft components coupled with the stent components. Using various combinations of self-expanding stent members, balloon-expandable stent members, graft members, and/or anchoring members enhances the anchoring abilities of a stent-graft device to prevent leakage around it, and may further allow the device to be adjusted after placement at a site for treatment. Some embodiments further include a skirt graft member for further prevention of leakage and/or device slippage.
    Type: Grant
    Filed: March 1, 2004
    Date of Patent: March 25, 2014
    Assignee: The Foundry, LLC
    Inventors: Mark Deem, Hanson S. Gifford, III, Bernard Andreas, Sunmi Chew, Ron French, Doug Sutton
  • Patent number: 8652198
    Abstract: A luminal prosthesis comprises a plurality of radially expandable prosthetic stent segments arranged axially. Two or more of the prosthetic stent segments are separable upon expansion from the remaining prosthetic stent segments and a coupling structure connects at least some of the adjacent prosthetic stent segments to each other. The coupling structure permits a first group of the adjacent prosthetic stent segments to separate from a second group of the prosthetic stent segments upon differential radial expansion of the first group relative to the second group and the coupling structure maintains or forms an attachment between the adjacent prosthetic stent segments in the first group which have been expanded together. A delivery system and methods for deploying the multiple coupled prosthetic stent segments are also disclosed.
    Type: Grant
    Filed: March 19, 2007
    Date of Patent: February 18, 2014
    Assignee: J.W. Medical Systems Ltd.
    Inventors: Bernard Andreas, Sunmi Chew, Jeremy Dittmer, Jeff Grainger, Stephen Kao, David Lowe, Bryan Mao, Steve Olson, David Snow, Craig Welk
  • Patent number: 8070789
    Abstract: Apparatus for delivering stents to body lumens include one or more tubular prostheses carried at the distal end of a catheter shaft, a sheath slidably disposed over the prostheses, and a guidewire tube extending from within the sheath to the exterior of the sheath through an exit port in a sidewall thereof. A guidewire extends slidably through the guidewire tube. The sheath can be moved relative to the catheter shaft and the guidewire tube to expose the prostheses for deployment. Methods of delivering stents are also provided.
    Type: Grant
    Filed: March 28, 2008
    Date of Patent: December 6, 2011
    Assignee: Xtent, Inc.
    Inventors: Allan Will, Bernard Andreas, Sunmi Chew
  • Patent number: 8070671
    Abstract: Devices and methods for augmenting or otherwise enhancing closure of body lumens comprise magnetic or magnetizable components or particles which are implanted in the wall of the lumen. The magnet fields exerted by the components or particles act to close the body lumen with a desired force.
    Type: Grant
    Filed: June 21, 2007
    Date of Patent: December 6, 2011
    Assignee: Torax Medical, Inc.
    Inventors: Mark E. Deem, Hanson S. Gifford, III, Bernard Andreas, Sunmi Chew, Ron French, Doug Sutton
  • Patent number: 8070670
    Abstract: Devices and methods for augmenting or otherwise enhancing closure of body lumens comprise magnetic or magnetizable components or particles which are implanted in the wall of the lumen. The magnet fields exerted by the components or particles act to close the body lumen with a desired force.
    Type: Grant
    Filed: November 16, 2006
    Date of Patent: December 6, 2011
    Assignee: Torax Medical, Inc.
    Inventors: Mark E. Deem, Hanson S. Gifford, III, Bernard Andreas, Sunmi Chew, Ron French, Doug Sutton
  • Publication number: 20110230830
    Abstract: A liner is advanced through a narrowed region in a vessel such as the internal carotid artery. The liner is advanced through the narrowed region in a collapsed position. A stent is then advanced through the liner and expanded to open the narrowed region. The liner may also have an anchor, which expands an end of the liner before the stent is introduced.
    Type: Application
    Filed: May 31, 2011
    Publication date: September 22, 2011
    Inventors: Hanson S. Gifford, III, Ivan Sepetka, Mark E. Deem, Douglas S. Sutton, Allan R. Will, Martin S. Dieck, Sunmi Chew
  • Publication number: 20110224773
    Abstract: A liner is advanced through a narrowed region in a vessel such as the internal carotid artery. The liner is advanced through the narrowed region in a collapsed position. A stent is then advanced through the liner and expanded to open the narrowed region. The liner may also have an anchor which expands an end of the liner before the stent is introduced.
    Type: Application
    Filed: March 15, 2011
    Publication date: September 15, 2011
    Inventors: Hanson S. Gifford, Ivan Sepetka, Mark E. Deem, Allan R. Will, Martin S. Dieck, Sunmi Chew
  • Patent number: 8016871
    Abstract: Blood vessels and other body lumens are stented using multiple, discreet stent structures. Stent structures may be balloon expandable or self-expanding and are delivered by a delivery catheter which is repositioned to spaced-apart delivery sights. By coating the stents with particular biologically active substances, hyperplasia within and between the implanted stents can be inhibited. An exemplary delivery catheter comprises a catheter body having both a pusher rod for advancing the stents relative to a sheath and a reciprocatable delivery catheter for implanting the stents.
    Type: Grant
    Filed: June 10, 2009
    Date of Patent: September 13, 2011
    Assignee: Xtent, Inc.
    Inventors: Sunmi Chew, Bernard Andreas, Hanson S. Gifford, III, Ron French, Mark E. Deem, Allan Will
  • Patent number: 8016870
    Abstract: Blood vessels and other body lumens are stented using multiple, discrete stent structures, or continuous coiled or mesh stent structures. Stent structures may be a balloon expandable or self-expanding and are delivered by a delivery catheter which is repositioned to spaced-apart delivery sites. By coating the stents with particular biologically active substances, hyperplasia within and between the implanted stents can be inhibited. An exemplary delivery catheter comprises a catheter body having a deployment mechanism for deploying one or more stents of selectable length into the vessel.
    Type: Grant
    Filed: November 12, 2007
    Date of Patent: September 13, 2011
    Assignee: Xtent, Inc.
    Inventors: Sunmi Chew, Bernard Andreas, Hanson S. Gifford, III, Ron French, Mark E. Deem, Allan Will
  • Publication number: 20110196365
    Abstract: A system applies, in a non-invasive manner, energy to a targeted tissue region employing a controlled source of energy, a multiple use applicator, and a single use, applicator-tissue interface carried by the applicator. The system can generate and apply energy in a controlled fashion to form a predefined pattern of lesions that provide therapeutic benefit, e.g., to moderate or interrupt function of the sweat glands in the underarm (axilla).
    Type: Application
    Filed: October 22, 2009
    Publication date: August 11, 2011
    Applicant: MIRAMAR LABS, INC.
    Inventors: Steven Kim, Daniel Francis, Jessi E. Johnson, Alexey Salamini, Ted Su, Dong Hoon Chun, Yoav Ben-Haim, Christopher Loew, Leo Kopelow, Sunmi Chew
  • Patent number: 7905913
    Abstract: Blood vessels and other body lumens are stented using multiple, discreet stent structures. Stent structures may be balloon expandable or self-expanding and are delivered by a delivery catheter which is repositioned to spaced-apart delivery sights. By coating the stents with particular biologically active substances, hyperplasia within and between the implanted stents can be inhibited. An exemplary delivery catheter comprises a catheter body having both a pusher rod for advancing the stents relative to a sheath and a reciprocatable delivery catheter for implanting the stents.
    Type: Grant
    Filed: November 28, 2006
    Date of Patent: March 15, 2011
    Assignee: Xtent, Inc.
    Inventors: Sunmi Chew, Bernard Andreas, Hanson S. Gifford, III, Ron French, Mark E. Deem, Allan Will
  • Patent number: 7892274
    Abstract: Apparatus for delivering stents to body lumens include one or more tubular prostheses carried at the distal end of a catheter shaft, a sheath slidably disposed over the prostheses, and a guidewire tube extending from within the sheath to the exterior of the sheath through an exit port in a sidewall thereof. A guidewire extends slidably through the guidewire tube. The sheath can be moved relative to the catheter shaft and the guidewire tube to expose the prostheses for deployment. Methods of delivering stents are also provided.
    Type: Grant
    Filed: November 16, 2006
    Date of Patent: February 22, 2011
    Assignee: Xtent, Inc.
    Inventors: Allan Will, Bernard Andreas, Sunmi Chew
  • Publication number: 20100004729
    Abstract: Blood vessels and other body lumens are stented using multiple, discreet stent structures. Stent structures may be balloon expandable or self-expanding and are delivered by a delivery catheter which is repositioned to spaced-apart delivery sights. By coating the stents with particular biologically active substances, hyperplasia within and between the implanted stents can be inhibited. An exemplary delivery catheter comprises a catheter body having both a pusher rod for advancing the stents relative to a sheath and a reciprocatable delivery catheter for implanting the stents.
    Type: Application
    Filed: June 10, 2009
    Publication date: January 7, 2010
    Applicant: Xtent, Inc.
    Inventors: Sunmi Chew, Bernard Andreas, Hanson S. Gifford, III, Ron French, Mark E. Deem, Allan Will
  • Publication number: 20090270975
    Abstract: A liner is advanced through a narrowed region in a vessel such as the internal carotid artery. The liner is advanced through the narrowed region in a collapsed position. A stent is then advanced through the liner and expanded to open the narrowed region. The liner may also have an anchor which expands an end of the liner before the stent is introduced.
    Type: Application
    Filed: April 17, 2009
    Publication date: October 29, 2009
    Inventors: Hanson S. Gifford, III, Ivan Sepetka, Mark E. Deem, Douglas S. Sutton, Allan R. Will, Martin S. Dieck, Sunmi Chew