Patents by Inventor Chanaka Amarasinghe

Chanaka Amarasinghe 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: 9636200
    Abstract: An implant including a vaginal portion having a length, width, first and second ends with a central region positioned therebetween, and a sacral portion having a length, width, first end and second end. The first end of the sacral portion is coupled to the central region of the vaginal portion so that the width of the first end extends substantially perpendicularly to the length of the vaginal portion. The implant is made of the same substantially flat, planar mesh having an anisotropic knitted or woven structure that has a greater stiffness in a first direction than a second direction. The mesh is aligned such that the first direction is aligned in a longitudinal direction of the sacral portion and the mesh of the vaginal portion is aligned such that the stiffness in a longitudinal direction of the vaginal portion is less than that of the sacral portion.
    Type: Grant
    Filed: March 21, 2016
    Date of Patent: May 2, 2017
    Assignee: Ethicon, Inc.
    Inventors: Chanaka Amarasinghe, Marc Feinberg
  • Publication number: 20160199168
    Abstract: An implant including a vaginal portion having a length, width, first and second ends with a central region positioned therebetween, and a sacral portion having a length, width, first end and second end. The first end of the sacral portion is coupled to the central region of the vaginal portion so that the width of the first end extends substantially perpendicularly to the length of the vaginal portion. The implant is made of the same substantially flat, planar mesh having an anisotropic knitted or woven structure that has a greater stiffness in a first direction than a second direction. The mesh is aligned such that the first direction is aligned in a longitudinal direction of the sacral portion and the mesh of the vaginal portion is aligned such that the stiffness in a longitudinal direction of the vaginal portion is less than that of the sacral portion.
    Type: Application
    Filed: March 21, 2016
    Publication date: July 14, 2016
    Applicant: Ethicon, Inc.
    Inventors: Chanaka Amarasinghe, Marc Feinberg
  • Patent number: 9320586
    Abstract: An implant including a vaginal portion having a length, width, first and second ends with a central region positioned therebetween, and a sacral portion having a length, width, first end and second end. The first end of the sacral portion is coupled to the central region of the vaginal portion so that the width of the first end extends substantially perpendicularly to the length of the vaginal portion. The implant is made of the same substantially flat, planar mesh having an anisotropic knitted or woven structure that has a greater stiffness in a first direction than a second direction. The mesh is aligned such that the first direction is aligned in a longitudinal direction of the sacral portion and the mesh of the vaginal portion is aligned such that the stiffness in a longitudinal direction of the vaginal portion is less than that of the sacral portion.
    Type: Grant
    Filed: July 2, 2012
    Date of Patent: April 26, 2016
    Assignee: Ethicon, Inc.
    Inventors: Chanaka Amarasinghe, Marc E. Feinberg
  • Publication number: 20140005471
    Abstract: An implant including a vaginal portion having a length, width, first and second ends with a central region positioned therebetween, and a sacral portion having a length, width, first end and second end. The first end of the sacral portion is coupled to the central region of the vaginal portion so that the width of the first end extends substantially perpendicularly to the length of the vaginal portion. The implant is made of the same substantially flat, planar mesh having an anisotropic knitted or woven structure that has a greater stiffness in a first direction than a second direction. The mesh is aligned such that the first direction is aligned in a longitudinal direction of the sacral portion and the mesh of the vaginal portion is aligned such that the stiffness in a longitudinal direction of the vaginal portion is less than that of the sacral portion.
    Type: Application
    Filed: July 2, 2012
    Publication date: January 2, 2014
    Applicant: ETHICON, INC.
    Inventors: Chanaka Amarasinghe, Marc E. Feinberg
  • Publication number: 20060189922
    Abstract: Disclosed is a double lumen continuous flow dialysis catheter having contiguous lumens of different lengths, the shorter lumen acting as a blood intake lumen and the longer as a blood return lumen. The catheter is designed to ease insertion into the body without the use of a tearaway sheath and to minimize recirculation flow from the blood return lumen to the blood intake lumen and/or prevent the blood intake lumen from becoming compressed against a vessel or body wall during dialysis.
    Type: Application
    Filed: December 14, 2005
    Publication date: August 24, 2006
    Inventors: Chanaka Amarasinghe, James Bates