Patents by Inventor Carla Rosa Pienknagura

Carla Rosa Pienknagura 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: 20160287418
    Abstract: The present invention is directed to a flexible expandable stent for implantation in a body lumen, such as a coronary artery. The stent generally includes a series of metallic cylindrical rings longitudinally aligned on a common axis of the stent and interconnected by a series of links which be polymeric or metallic. Varying configurations and patterns of the links and rings provides longitudinal and flexural flexibility to the stent while maintaining sufficient column strength to space the cylindrical rings along the longitudinal axis and providing a low crimp profile, enhanced stent security and radial stiffness.
    Type: Application
    Filed: June 17, 2016
    Publication date: October 6, 2016
    Applicant: Abbott Cardiovascular Systems Inc.
    Inventors: E. Tina Cheng, Santosh Prabhu, Kyle Marie Krueger, Diem Uyen Ta, Carla Rosa Pienknagura
  • Patent number: 9375331
    Abstract: The present invention is directed to a flexible expandable stent for implantation in a body lumen, such as a coronary artery. The stent generally includes a series of metallic cylindrical rings longitudinally aligned on a common axis of the stent and interconnected by a series of links which be polymeric or metallic. Varying configurations and patterns of the links and rings provides longitudinal and flexural flexibility to the stent while maintaining sufficient column strength to space the cylindrical rings along the longitudinal axis and providing a low crimp profile, enhanced stent security and radial stiffness.
    Type: Grant
    Filed: January 7, 2008
    Date of Patent: June 28, 2016
    Assignee: ABBOTT CARDIOVASCULAR SYSTEMS INC.
    Inventors: E Tina Cheng, Santosh Prabhu, Kyle Marie Krueger, Diem Uyen Ta, Carla Rosa Pienknagura
  • Patent number: 8435279
    Abstract: A delivery system for a medical device. The delivery system comprises an inner member, a retractable sheath disposed over the inner member and being slideable over the inner member, and a retraction member coupled to the retractable sheath and disposed at least in portion within the retractable sheath, the retraction member being slideable over the inner member. An axial movement of the retraction member retracts or actuates the retractable member.
    Type: Grant
    Filed: June 14, 2005
    Date of Patent: May 7, 2013
    Assignee: Advanced Cardiovascular Systems, Inc.
    Inventors: Dagmar Beyerlein, Christopher Feezor, Karim Osman, Denise Horrilleno Burns, Carla Rosa Pienknagura, Barbara Stamberg
  • Patent number: 8372137
    Abstract: The invention is directed to an expandable stent for implanting in a body lumen, such as a coronary artery, peripheral artery, or other body lumen. The invention provides for an intravascular stent having a plurality of cylindrical rings connected by undulating links. A plurality of inverted cylindrical end rings can be coupled at least in part to a plurality of adjacent cylindrical rings in the form of mirror images such that a symmetrical configuration is present on at least one of a proximal end and a distal end of the stent. The stent has a high degree of flexibility in the longitudinal direction, yet has adequate vessel wall coverage and radial strength sufficient to hold open an artery or other body lumen. The inverted end ring configuration of the stent aims at reducing the stent-to-shoulder distance as well as delivering therapeutic drug to the peri-stent area while maintaining a pristine stent deployment.
    Type: Grant
    Filed: June 2, 2011
    Date of Patent: February 12, 2013
    Assignee: Advanced Cardiovascular Systems, Inc.
    Inventor: Carla Rosa Pienknagura
  • Publication number: 20110230959
    Abstract: The invention is directed to an expandable stent for implanting in a body lumen, such as a coronary artery, peripheral artery, or other body lumen. The invention provides for an intravascular stent having a plurality of cylindrical rings connected by undulating links. A plurality of inverted cylindrical end rings can be coupled at least in part to a plurality of adjacent cylindrical rings in the form of mirror images such that a symmetrical configuration is present on at least one of a proximal end and a distal end of the stent. The stent has a high degree of flexibility in the longitudinal direction, yet has adequate vessel wall coverage and radial strength sufficient to hold open an artery or other body lumen. The inverted end ring configuration of the stent aims at reducing the stent-to-shoulder distance as well as delivering therapeutic drug to the peri-stent area while maintaining a pristine stent deployment.
    Type: Application
    Filed: June 2, 2011
    Publication date: September 22, 2011
    Applicant: ABBOTT CARDIOVASCULAR SYSTEMS INC.
    Inventor: CARLA ROSA PIENKNAGURA
  • Publication number: 20110144736
    Abstract: The present invention is directed to a flexible expandable stent for implantation in a body lumen, such as a coronary artery. The stent generally includes a series of metallic cylindrical rings longitudinally aligned on a common axis of the stent and interconnected by a series of links which be polymeric or metallic. Varying configurations and patterns of the links provides longitudinal and flexural flexibility to the stent while maintaining sufficient column strength to space the cylindrical rings along the longitudinal axis. The metallic material forming the rings provides the necessary radial stiffness.
    Type: Application
    Filed: November 16, 2010
    Publication date: June 16, 2011
    Applicant: Abbott Cardiovascular Systems Inc.
    Inventors: Santosh Prabhu, Brian Brandt, Henjen Ho, Kyle Marie Krueger, Grayson Morris, Carla Rosa Pienknagura
  • Patent number: 7959665
    Abstract: The invention is directed to an expandable stent for implanting in a body lumen, such as a coronary artery, peripheral artery, or other body lumen. The invention provides for an intravascular stent having a plurality of cylindrical rings connected by undulating links. A plurality of inverted cylindrical end rings can be coupled at least in part to a plurality of adjacent cylindrical rings in the form of mirror images such that a symmetrical configuration is present on at least one of a proximal end and a distal end of the stent. The stent has a high degree of flexibility in the longitudinal direction, yet has adequate vessel wall coverage and radial strength sufficient to hold open an artery or other body lumen. The inverted end ring configuration of the stent aims at reducing the stent-to-shoulder distance as well as delivering therapeutic drug to the peri-stent area while maintaining a pristine stent deployment.
    Type: Grant
    Filed: May 21, 2007
    Date of Patent: June 14, 2011
    Assignee: Abbott Cardiovascular Systems Inc.
    Inventor: Carla Rosa Pienknagura
  • Patent number: 7316710
    Abstract: The present invention is directed to a flexible expandable stent for implantation in a body lumen, such as a coronary artery. The stent generally includes a series of metallic cylindrical rings longitudinally aligned on a common axis of the stent and interconnected by a series of links which be polymeric or metallic. Varying configurations and patterns of the links and rings provides longitudinal and flexural flexibility to the stent while maintaining sufficient column strength to space the cylindrical rings along the longitudinal axis and providing a low crimp profile, enhanced stent security and radial stiffness.
    Type: Grant
    Filed: December 30, 2002
    Date of Patent: January 8, 2008
    Assignee: Advanced Cardiovascular Systems, Inc.
    Inventors: E Tina Cheng, Santosh Prabhu, Kyle Marie Krueger, Diem Uyen Ta, Carla Rosa Pienknagura
  • Patent number: 7247166
    Abstract: An expandable stent for implanting in a body lumen, such as a coronary artery, peripheral artery, or other body lumen includes cylindrical rings connected by undulating links. The stent has a high degree of flexibility in the longitudinal direction, yet has adequate vessel wall coverage and radial strength sufficient to hold open an artery or other body lumen. The distal and proximal end ring have peaks that extend longitudinally when the stent is radially expanded. The end ring extensions reduce the likelihood of the development of peri-stent restenosis.
    Type: Grant
    Filed: September 29, 2003
    Date of Patent: July 24, 2007
    Assignee: Advanced Cardiovascular Systems, Inc.
    Inventor: Carla Rosa Pienknagura
  • Patent number: 7018403
    Abstract: A stent for implantation in a body lumen for protecting from rupture a fibrous cap in order to treat vulnerable plaque. One embodiment of the stent includes inclined planar rings joined by interconnecting links. The planar rings are inclined relative to a plane perpendicular to a longitudinal axis extending the length of the stent. The inclined planar rings provide vessel support yet require lower balloon pressures to deploy and exert lower radial stresses so that when appositioned with vulnerable plaque are less likely to rupture the fibrous cap.
    Type: Grant
    Filed: September 14, 2004
    Date of Patent: March 28, 2006
    Assignee: Advanced Cardiovascular Systems, Inc.
    Inventor: Carla Rosa Pienknagura