Patents by Inventor Ruwan Sumanasinghe

Ruwan Sumanasinghe 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: 20200289253
    Abstract: A tubular graft for use in a stent graft. The tubular graft may include a first woven layer that forms a first side of the tubular graft, where the first woven layer has a set of first warp ends. A second woven layer may forma a second side of the tubular graft, where the second woven layer has a set of second warp ends, and where the second warp ends are distinct from the first warp ends. A woven pocket flap may extend from the first woven layer, where a pocket opening is defined between the woven pocket flap and the first woven layer, and where the woven pocket flap includes at least one common weft yarn with the first woven layer.
    Type: Application
    Filed: March 15, 2019
    Publication date: September 17, 2020
    Applicant: Cook Medical Technologies LLC
    Inventors: Ruwan Sumanasinghe, Woong Kim
  • Patent number: 10596364
    Abstract: In one aspect, fluid flow control systems, such as for medical applications, may include a resistance barrier and a flexible ring that may receive a device. The resistance barrier may exert barrier forces on the device, and the flexible ring may exert ring forces on the device, in order to create a fluid tight seal.
    Type: Grant
    Filed: July 27, 2017
    Date of Patent: March 24, 2020
    Assignee: COOK MEDICAL TECHNOLOGIES LLC
    Inventor: Ruwan Sumanasinghe
  • Publication number: 20200069411
    Abstract: An implantable graft may include a main section having walls formed with a woven fabric, the main section having a main lumen extending therethrough. The implantable graft may also include a bifurcated section having walls formed with the woven fabric, where the bifurcated section extends from main section, where the bifurcated section includes a first branch and a second branch, and where the first branch and the second branch each include a branch lumen in fluid communication with the main lumen. At least one branch of the bifurcated section may include a branch taper formed by a seam connecting a first woven layer and a second woven layer. A seam extension may extend outwardly along the seam of the branch taper, the seam extension being a single-layer woven structure.
    Type: Application
    Filed: August 28, 2019
    Publication date: March 5, 2020
    Applicant: Cook Medical Technologies LLC
    Inventor: Ruwan Sumanasinghe
  • Publication number: 20190030314
    Abstract: In one aspect, fluid flow control systems, such as for medical applications, may include a resistance barrier and a flexible ring that may receive a device. The resistance barrier may exert barrier forces on the device, and the flexible ring may exert ring forces on the device, in order to create a fluid tight seal.
    Type: Application
    Filed: July 27, 2017
    Publication date: January 31, 2019
    Applicant: Cook Medical Technologies LLC
    Inventor: Ruwan Sumanasinghe
  • Publication number: 20180325651
    Abstract: In one example, a prosthesis comprises a generally tubular graft material having an inner and outer perimeter, and a plurality of pleats between the inner and outer perimeters in a first state. At least one stent is coupled to the graft material. At least one layer of biocompatible material is coupled to the graft material in the first state. One or more sections of the at least one layer biodegrade over a first period of time at a first biodegradable rate. At least one of the plurality of pleats of the graft material unfolds to permit radial expansion of the graft material after the first period of time, and the stent provides support for the radial expansion of the graft material.
    Type: Application
    Filed: May 4, 2018
    Publication date: November 15, 2018
    Applicant: COOK MEDICAL TECHNOLOGIES LLC
    Inventors: Ruwan Sumanasinghe, Ralf Spindler
  • Publication number: 20180325704
    Abstract: An endoluminal graft includes a tubular graft material having a closed sleeve integral with the tubular graft material. The closed sleeve extends a distance along the tubular graft material. A length of wire extends at least partially along the distance and is enclosed by the sleeve. The tubular graft material and the sleeve may comprise a single piece of graft material. The sleeve may be a closed circumferential sleeve and/or a closed longitudinal sleeve.
    Type: Application
    Filed: May 10, 2017
    Publication date: November 15, 2018
    Inventors: Jarin A. Kratzberg, Erik E. Rasmussen, Ruwan Sumanasinghe, Woong Kim