Patents by Inventor Ponaka Pung

Ponaka Pung 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: 20170079819
    Abstract: Implant engagement mechanisms are disclosed for maintaining engagement with a stent until it has been fully deployed and expanded from a catheter or sheath. The apparatus, method and system involving these engagement mechanisms allow a physician to withdraw or retract a sheath prior to full deployment, thereby allowing for redeployment of the stent at a more desirable position.
    Type: Application
    Filed: September 19, 2016
    Publication date: March 23, 2017
    Applicant: MicroVention, Inc.
    Inventors: Ponaka Pung, Tai D. Tieu, Ross Soltanian, Helen Nguyen, Oanh Nguyen, Britney Ngo
  • Publication number: 20160361180
    Abstract: In one embodiment according to the present invention, a stent is described having a generally cylindrical body formed from a single woven nitinol wire. The distal and proximal ends of the stent include a plurality of loops, some of which include marker members used for visualizing the position of the stent. In another embodiment, the previously described stent includes an inner flow diverting layer.
    Type: Application
    Filed: August 25, 2016
    Publication date: December 15, 2016
    Applicant: MicroVention, Inc.
    Inventors: Shirley Vong, Priscilla Tsai, Cang Lam, Ross Soltanian, Greg Bak-Boychuk, Tai D. Tieu, Ponaka Pung, Arnold Tuason, Heather Griffith
  • Patent number: 9439791
    Abstract: In one embodiment according to the present invention, a stent is described having a generally cylindrical body formed from a single woven nitinol wire. The distal and proximal ends of the stent include a plurality of loops, some of which include marker members used for visualizing the position of the stent. In another embodiment, the previously described stent includes an inner flow diverting layer.
    Type: Grant
    Filed: March 15, 2013
    Date of Patent: September 13, 2016
    Assignee: MicroVention, Inc.
    Inventors: Shirley Vong, Priscilla Tsai, Cang Lam, Ross Soltanian, Greg Bak-Boychuk, Tai D. Tieu, Ponaka Pung, Arnold Tuason, Heather Griffith
  • Publication number: 20160199204
    Abstract: A stent with varying porosity is described. The stent can be comprised of multiple stents attached together. A braided stent may have selected regions of increased thickness. The stent may be comprised of wires that are welded together at their ends in order to minimize vessel trauma. The stent may comprise a helically wound radiopaque wire wound through the stent.
    Type: Application
    Filed: January 12, 2016
    Publication date: July 14, 2016
    Applicant: MicroVention, Inc.
    Inventors: Ponaka Pung, Helen Nguyen
  • Patent number: 8777991
    Abstract: The present invention is directed to a method of securing suture within a patient. The method comprises advancing suture material into the patient, passing a portion of the suture material through tissue of the patient, and advancing a fastener catheter and a suture fastener along the suture material. The fastener catheter includes a catheter main body and a handle. The suture fastener has a generally cylindrical body formed of a shape memory material and a suture fastener inner lumen. The suture fastener has at least one engagement tab biased to extend at least partially into the suture fastener inner lumen to engage against and secure one or more lines of suture passing through the suture fastener.
    Type: Grant
    Filed: July 23, 2012
    Date of Patent: July 15, 2014
    Inventors: David Zarbatany, Tai Tieu, Ponaka Pung, Joseph Videll, Kenneth E. Perry, John Krumme, Maurice Buchbinder
  • Publication number: 20130245745
    Abstract: In one embodiment according to the present invention, a stent is described having a generally cylindrical body formed from a single woven nitinol wire. The distal and proximal ends of the stent include a plurality of loops, some of which include marker members used for visualizing the position of the stent. In another embodiment, the previously described stent includes an inner flow diverting layer.
    Type: Application
    Filed: March 15, 2013
    Publication date: September 19, 2013
    Applicant: MICROVENTION, INC.
    Inventors: Shirley Vong, Priscilla Tsai, Cang Lam, Ross Soltanian, Greg Bak-Boychuk, Tai D. Tieu, Ponaka Pung, Arnold Tuason, Heather Griffith
  • Publication number: 20120310319
    Abstract: In one embodiment according to the present invention, a stent is described having a generally cylindrical body formed from a single woven nitinol wire. The distal and proximal ends of the stent include a plurality of loops, some of which include marker members used for visualizing the position of the stent. In another embodiment, the previously described stent includes an inner flow diverting layer.
    Type: Application
    Filed: December 21, 2010
    Publication date: December 6, 2012
    Inventors: Tai D. Tieu, Ponaka Pung, Heather Griffith, Shirley Vong
  • Publication number: 20120289977
    Abstract: The present invention is directed to a method of securing suture within a patient. The method comprises advancing suture material into the patient, passing a portion of the suture material through tissue of the patient, and advancing a fastener catheter and a suture fastener along the suture material. The fastener catheter includes a catheter main body and a handle. The suture fastener has a generally cylindrical body formed of a shape memory material and a suture fastener inner lumen. The suture fastener has at least one engagement tab biased to extend at least partially into the suture fastener inner lumen to engage against and secure one or more lines of suture passing through the suture fastener.
    Type: Application
    Filed: July 23, 2012
    Publication date: November 15, 2012
    Applicant: EDWARDS LIFESCIENCES CORPORATION
    Inventors: David Zarbatany, Tai Tieu, Ponaka Pung, Joseph Videll, Ken Perry, John Krumme, Maurice Buchbinder
  • Publication number: 20120259404
    Abstract: In one embodiment according to the present invention, a stent is described having a generally cylindrical body formed from a single woven nitinol wire. The distal and proximal ends of the stent include a plurality of loops, some of which include marker members used for visualizing the position of the stent. In another embodiment, the previously described stent includes an inner flow diverting layer.
    Type: Application
    Filed: December 5, 2011
    Publication date: October 11, 2012
    Inventors: Tai D. Tieu, Gregory M. Cruise, Heather Griffith, Helen Nguyen, Minh Nguyen, Ponaka Pung, Shirley Vong
  • Patent number: 8226666
    Abstract: The present invention is various systems for repairing tissue within the heart of a patient. The system of the present invention includes a guide catheter, a therapy catheter, and a fastener catheter. The therapy catheter and the fastener catheter are capable of traversing the internal lumen of the guide catheter. The fastener catheter is capable of introducing a suture clip to a desired position along suture line, deploying the suture clip to secure the suture and cutting excess suture. In addition, the present invention discloses various methods for repairing tissue.
    Type: Grant
    Filed: September 2, 2009
    Date of Patent: July 24, 2012
    Assignee: Edwards Lifesciences Corporation
    Inventors: David Zarbatany, Tai Tieu, Ponaka Pung, Joseph Videll, Ken Perry, John Krumme, Maurice Buchbinder
  • Publication number: 20090318871
    Abstract: The present invention is directed to various systems for repairing tissue within the heart of a patient. The mitral valve repair system of the present invention comprises a guide catheter having a proximal end, a distal end, and at least one internal lumen formed therein, a therapy catheter capable of applying a suture to the tissue, and a fastener catheter capable of attaching a fastener to the suture. The therapy catheter and the fastener catheter are capable of traversing the internal lumen of the guide catheter. In addition, the present invention discloses various methods for repairing tissue within the heart of a patient.
    Type: Application
    Filed: September 2, 2009
    Publication date: December 24, 2009
    Applicant: Edwards Lifesciences Corporation
    Inventors: David Zarbatany, Tai Tieu, Ponaka Pung, Joseph Videll, Ken Perry, John Krumme, Maurice Buchbinder
  • Publication number: 20080228201
    Abstract: The present invention is directed to various systems for repairing tissue within the heart of a patient. The mitral valve repair system of the present invention comprises a guide catheter having a proximal end, a distal end, and at least one internal lumen formed therein, a therapy catheter capable of applying a suture to the tissue, and a fastener catheter capable of attaching a fastener to the suture. The therapy catheter and the fastener catheter are capable of traversing the internal lumen of the guide catheter. In addition, the present invention discloses various methods for repairing tissue within the heart of a patient.
    Type: Application
    Filed: May 29, 2008
    Publication date: September 18, 2008
    Applicant: Edwards Lifesciences Corporation
    Inventors: David Zarbatany, Tai Tieu, Ponaka Pung, Joseph Videll, Ken Perry, John Krumme, Maurice Buchbinder
  • Patent number: 7381210
    Abstract: The present invention is directed to various systems for repairing tissue within the heart of a patient. The mitral valve repair system of the present invention comprises a guide catheter having a proximal end, a distal end, and at least one internal lumen formed therein, a therapy catheter capable of applying a suture to the tissue, and a fastener catheter capable of attaching a fastener to the suture. The therapy catheter and the fastener catheter are capable of traversing the internal lumen of the guide catheter. In addition, the present invention discloses various methods for repairing tissue within the heart of a patient.
    Type: Grant
    Filed: March 14, 2003
    Date of Patent: June 3, 2008
    Assignee: Edwards Lifesciences Corporation
    Inventors: David Zarbatany, Tai Tieu, Ponaka Pung, Joseph Videll, Ken Perry, John Krumme, Maurice Buchbinder
  • Publication number: 20040181238
    Abstract: The present invention is directed to various systems for repairing tissue within the heart of a patient. The mitral valve repair system of the present invention comprises a guide catheter having a proximal end, a distal end, and at least one internal lumen formed therein, a therapy catheter capable of applying a suture to the tissue, and a fastener catheter capable of attaching a fastener to the suture. The therapy catheter and the fastener catheter are capable of traversing the internal lumen of the guide catheter. In addition, the present invention discloses various methods for repairing tissue within the heart of a patient.
    Type: Application
    Filed: March 14, 2003
    Publication date: September 16, 2004
    Inventors: David Zarbatany, Tai Tieu, Ponaka Pung, Joseph Videll, Ken Perry, John Krumme, Maurice Buchbinder