Patents by Inventor Elbert Y. Tzeng

Elbert Y. Tzeng 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: 9220532
    Abstract: A working cannula is advanced through the urethra into the bladder. Gas is infused through the cannula into the bladder, pressurizing the bladder. A fenestrating shunt catheter is then advanced through the urethra into the bladder and against the wall of the bladder, fenestrating it. A distal segment of the shunt catheter is then advanced through the wall into the peritoneal space, while a more proximal segment of the shunt catheter remains in the bladder. Shunt holes are formed in both the distal segment and more proximal segment so that gas from the pressurized bladder flows through the shunt holes into the peritoneal space, insufflating the peritoneal space.
    Type: Grant
    Filed: October 1, 2008
    Date of Patent: December 29, 2015
    Assignee: Minos Medical
    Inventors: Wayne A. Noda, Elbert Y. Tzeng, Stephen Graham Bell
  • Publication number: 20110306829
    Abstract: A transuterine cannula through which an endoscope can be advanced into the peritoneal space to provide visualization of tissue cutting in the peritoneal space pursuant to a vaginal hysterectomy.
    Type: Application
    Filed: August 22, 2011
    Publication date: December 15, 2011
    Inventors: BRADLEY J. SHARP, Stephen Graham Bell, Wayne A. Noda, Elbert Y. Tzeng
  • Patent number: 8025670
    Abstract: A transuterine cannula through which an endoscope can be advanced into the peritoneal space to provide visualization of tissue cutting in the peritoneal space pursuant to a vaginal hysterectomy.
    Type: Grant
    Filed: October 11, 2007
    Date of Patent: September 27, 2011
    Assignee: Minos Medical
    Inventors: Bradley J. Sharp, Stephen Graham Bell, Wayne A. Noda, Elbert Y. Tzeng
  • Publication number: 20090088678
    Abstract: A working cannula is advanced through the urethra into the bladder. Gas is infused through the cannula into the bladder, pressurizing the bladder. A fenestrating shunt catheter is then advanced through the urethra into the bladder and against the wall of the bladder, fenestrating it. A distal segment of the shunt catheter is then advanced through the wall into the peritoneal space, while a more proximal segment of the shunt catheter remains in the bladder. Shunt holes are formed in both the distal segment and more proximal segment so that gas from the pressurized bladder flows through the shunt holes into the peritoneal space, insufflating the peritoneal space.
    Type: Application
    Filed: October 1, 2008
    Publication date: April 2, 2009
    Inventors: WAYNE A. NODA, ELBERT Y. TZENG, STEPHEN GRAHAM BELL
  • Publication number: 20090062614
    Abstract: A plug is closely received in the open distal end of an outer tube for natural orifice surgery and is proximally removable from the tube. Various means are provided for deforming the plug to permit the plug to be retrieved through the outer tube.
    Type: Application
    Filed: June 30, 2008
    Publication date: March 5, 2009
    Inventors: VASO ADZICH, Wayne A. Noda, Stephen Graham Bell, Elbert Y. Tzeng
  • Publication number: 20080171989
    Abstract: The present invention relates to a device and method for accessing an anatomical cavity using a natural body orifice where penetration of a tissue wall is required. In particular, an objective of this invention is to provide a system for delivering an access device to the abdominal cavity through the bladder. An access device is described suitable for introduction into the bladder, at least partially disinfecting the access site, accessing the abdominal cavity through a wall of the bladder and insufflating the bladder and the abdominal cavity as required. The access device may be used to deliver an endoscope or other diagnostic or therapeutic instruments into the abdominal cavity.
    Type: Application
    Filed: October 9, 2007
    Publication date: July 17, 2008
    Inventors: Stephen G. Bell, Wayne A. Noda, Elbert Y. Tzeng
  • Publication number: 20080119868
    Abstract: A transuterine cannula through which an endoscope can be advanced into the peritoneal space to provide visualization of tissue cutting in the peritoneal space pursuant to a vaginal hysterectomy.
    Type: Application
    Filed: October 11, 2007
    Publication date: May 22, 2008
    Inventors: Bradley J. Sharp, Stephen Graham Bell, Wayne A. Noda, Elbert Y. Tzeng
  • Publication number: 20080108860
    Abstract: Apparatus and methods for minimally invasive stabilization, manipulation and/or removal of body cavities or organs in the body through the skin or natural body orifices. A magnet is delivered into an organ, the position of the organ is stabilized with an opposing magnetic retrieval device positioned outside the organ, and the organ is ligated and removed from the body through the skin or a natural body orifice. This magnetic linkage between an internal body cavity with a retrieval device may be used to hold the position of the body cavity steady during resection and aid in the removal of that structure from the body. The magnet may be a balloon filled with a magnetic gel or fluid.
    Type: Application
    Filed: October 25, 2007
    Publication date: May 8, 2008
    Inventors: Stephen G. Bell, Wayne A. Noda, Elbert Y. Tzeng
  • Patent number: 7025783
    Abstract: An intraocular lens (IOL) includes an optic for focusing light, an outer ring for supporting the optic in a capsular bag of an eye and a plurality of radially spaced apart, elongated intermediate members connecting the optic to the outer ring. The intermediate members are configured to convert radial forces exerted by the capsular bag on the support ring into axial movement of the optic, allowing a presbyopic patient to more effectively focus on near objects. The outer ring is preferably contoured to conform to the portion of the capsular bag between the anterior and posterior zonules, and has sufficient axial thickness to contact both sets of zonules. In addition, the edge of the ring includes at least one sharp edge corner to prevent epithelial cell growth toward the optic. In addition, the outer ring may include weakened areas configured to allow consistent and repeatable deformation in response to compressive forces.
    Type: Grant
    Filed: January 14, 2003
    Date of Patent: April 11, 2006
    Assignee: Advanced Medical Optics, Inc.
    Inventors: Daniel G. Brady, Stephen W. Laguette, Marlene L. Paul, Elbert Y. Tzeng, Robert E. Glick
  • Publication number: 20030135272
    Abstract: An intraocular lens (IOL) includes an optic for focusing light, an outer ring for supporting the optic in a capsular bag of an eye and a plurality of radially spaced apart, elongated intermediate members connecting the optic to the outer ring. The intermediate members are configured to convert radial forces exerted by the capsular bag on the support ring into axial movement of the optic, allowing a presbyopic patient to more effectively focus on near objects. The outer ring is preferably contoured to conform to the portion of the capsular bag between the anterior and posterior zonules, and has sufficient axial thickness to contact both sets of zonules. In addition, the edge of the ring includes at least one sharp edge corner to prevent epithelial cell growth toward the optic. In addition, the outer ring may include weakened areas configured to allow consistent and repeatable deformation in response to compressive forces.
    Type: Application
    Filed: January 14, 2003
    Publication date: July 17, 2003
    Applicant: Advanced Medical Optics, Inc.
    Inventors: Daniel G. Brady, Stephen W. Laguette, Marlene L. Paul, Elbert Y. Tzeng, Robert E. Glick