Patents by Inventor Leonard Y. Lee

Leonard Y. Lee 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: 20080294102
    Abstract: A vascular catheter with a circular external diameter, a circular lumen contained within, and an inflatable balloon that overlies a trough in the catheter body such that when the balloon is deflated, the balloon does not protrude beyond the outer circumference of the catheter shaft. The wall of the catheter shaft is thicker along one side than along the remainder of the circumference of the catheter shaft to permit an inflation lumen to be disposed within the thick wall section without increasing the outer diameter of the remaining portion of the circumference. The inflatable balloon is further disposed to maintain the circular lumen of the catheter in the center of flow of the blood vessel in which it is used, maintaining optimal flow.
    Type: Application
    Filed: December 4, 2007
    Publication date: November 27, 2008
    Inventors: Richard Cartledge, Leonard Y. Lee
  • Patent number: 7455690
    Abstract: A method for controlling the circumference of internal anatomic passages corrects physiologic dysfunctions resulting from a structural orifice or lumen which is either too large or too small. Implants are disclosed which employ various means for adjusting and maintaining the size of an orifice to which they are attached. Systems permit the implants to be implanted using minimally invasive procedures and permit final adjustments to the circumference of the implants after the resumption of normal flow of anatomic fluids in situ. Methods are disclosed for using the implants to treat heart valve abnormalities, gastroesophageal abnormalities, anal incontinence, and the like.
    Type: Grant
    Filed: August 29, 2003
    Date of Patent: November 25, 2008
    Assignee: MitralSolutions, Inc.
    Inventors: Richard G. Cartledge, Leonard Y. Lee
  • Patent number: 7297150
    Abstract: An implantable device is provided for controlling the internal circumference of an anatomic orifice or lumen. The implantable device has an adjustable member configured to adjust the dimensions of the implantable device. The implantable device is configured to be coupled to a faster that provides for fastening of said implantable device to tissue around the anatomic orifice or lumen. An adjustment tool actuates the adjustable member and provides for adjustment before, during or after the anatomic orifice or lumen resumes near normal to normal physiologic function. The adjustment member of is positioned off plane relative to the implantable device to provide that the implantable device can be adjusted on a beating heart to cause leaflet coaptation. The adjustment member is positioned to enable attachment to and adjustment of the implantable device, and detachment from the implantable device and removal from the body under normal beating heart conditions.
    Type: Grant
    Filed: August 29, 2003
    Date of Patent: November 20, 2007
    Assignee: MitralSolutions, Inc.
    Inventors: Richard G. Cartledge, Leonard Y. Lee
  • Patent number: 7175660
    Abstract: A system for implanting a surgical device to control the circumference of internal anatomic passages corrects physiologic dysfunctions resulting from a structural lumen which is either too large or too small. Implants are disclosed which employ various means for adjusting and maintaining the size of an orifice to which they are attached. Systems permit the implants to be implanted using minimally invasive procedures and permit final adjustments to the circumference of the implants after the resumption of normal flow of anatomic fluids in situ. Methods are disclosed for using the implants to treat heart valve abnormalities, gastroesophageal abnormalities, anal incontinence, and the like.
    Type: Grant
    Filed: August 29, 2003
    Date of Patent: February 13, 2007
    Assignee: MitralSolutions, Inc.
    Inventors: Richard G. Cartledge, Leonard Y. Lee
  • Publication number: 20040249453
    Abstract: A method for controlling the circumference of internal anatomic passages corrects physiologic dysfunctions resulting from a structural orifice or lumen which is either too large or too small. Implants are disclosed which employ various means for adjusting and maintaining the size of an orifice to which they are attached. Systems permit the implants to be implanted using minimally invasive procedures and permit final adjustments to the circumference of the implants after the resumption of normal flow of anatomic fluids in situ. Methods are disclosed for using the implants to treat heart valve abnormalities, gastroesophageal abnormalities, anal incontinence, and the like.
    Type: Application
    Filed: August 29, 2003
    Publication date: December 9, 2004
    Inventors: Richard G. Cartledge, Leonard Y. Lee
  • Publication number: 20040148021
    Abstract: An implantable device for controlling the circumference of internal anatomic passages corrects physiologic dysfunctions resulting from a structural lumen which is either too large or too small. Implants are disclosed which employ various means for adjusting and maintaining the size of an orifice to which they are attached. Systems permit the implants to be implanted using minimally invasive procedures and permit final adjustments to the circumference of the implants after the resumption of normal flow of anatomic fluids in situ. Methods are disclosed for using the implants to treat heart valve abnormalities, gastroesophageal abnormalities, anal incontinence, and the like.
    Type: Application
    Filed: August 29, 2003
    Publication date: July 29, 2004
    Inventors: Richard G. Cartledge, Leonard Y. Lee
  • Publication number: 20030120206
    Abstract: A catheter has a balloon that overlies a trough in the catheter body such that when the balloon is deflated, the balloon does not protrude beyond the outer circumference of the catheter shaft. The wall of the catheter shaft is thicker along one side than along the remainder of the circumference of the catheter shaft to permit an inflation lumen to be disposed within the thick wall section without increasing the outer diameter of the remaining portion of the circumference.
    Type: Application
    Filed: November 14, 2002
    Publication date: June 26, 2003
    Inventors: Richard G. Cartledge, Leonard Y. Lee