公开(公告)号：US10596364B2

公开(公告)日：2020-03-24

申请号：US15662130

申请日：2017-07-27

Applicant: Cook Medical Technologies LLC

Inventor： Ruwan Sumanasinghe

IPC: A61M39/28 ,  A61M39/24

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.

公开(公告)号：US20180325651A1

公开(公告)日：2018-11-15

申请号：US15971147

申请日：2018-05-04

Applicant: COOK MEDICAL TECHNOLOGIES LLC

Inventor： Ruwan Sumanasinghe ,  Ralf Spindler

IPC: A61F2/07 ,  A61F2/844

CPC classification number: A61F2/07 ,  A61F2/844 ,  A61F2210/0004 ,  A61F2250/001 ,  A61F2250/0031 ,  A61F2250/0063

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.

公开(公告)号：US11980540B2

公开(公告)日：2024-05-14

申请号：US17117691

申请日：2020-12-10

Applicant: Cook Medical Technologies LLC

Inventor： Jarin A. Kratzberg ,  Erik E. Rasmussen ,  Ruwan Sumanasinghe ,  Woong Kim

IPC: A61F2/06 ,  A61F2/07

CPC classification number: A61F2/06 ,  A61F2/064 ,  A61F2/07 ,  A61F2220/005 ,  A61F2220/0075

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.

公开(公告)号：US11969335B2

公开(公告)日：2024-04-30

申请号：US17241808

申请日：2021-04-27

Applicant: Cook Medical Technologies LLC

Inventor： Ruwan Sumanasinghe

IPC: A61F2/06 ,  A61F2/07 ,  D03D3/02 ,  D03D13/00

CPC classification number: A61F2/07 ,  A61F2/06 ,  D03D3/02 ,  D03D13/004 ,  A61F2220/0075 ,  A61F2250/0039

Abstract: A tubular graft may include a first woven layer, where the first woven layer forms a first side of the tubular graft; a second woven layer, where the second woven layer forms a second side of the tubular graft; and a tapered portion having an edge, where the edge connects the first woven layer and the second woven layer, where the tapered portion includes a first weft thread, a second weft thread, and a third weft thread, and where a floating portion of a first warp end extends from the first weft thread to the third weft thread such that the floating portion bypasses the second weft thread.

公开(公告)号：US20220287860A1

公开(公告)日：2022-09-15

申请号：US17200075

申请日：2021-03-12

Applicant: COOK MEDICAL TECHNOLOGIES LLC

Inventor： Ruwan Sumanasinghe

IPC: A61F2/962

Abstract: The present embodiments provide delivery systems for facilitating orientation of a prosthesis in a bodily passage. In one example, a system comprises an inner cannula having proximal and distal regions, and further comprises an atraumatic tip having a proximal end, a distal end, and a central region disposed therebetween. At least a portion of the atraumatic tip may be coupled to the proximal region of the inner cannula. A plurality of orientation struts are provided having a retracted delivery state, an expanded deployed state, and a retracted withdrawal state. The plurality of orientation struts each have apices that are oriented proximally relative to the atraumatic tip in the retracted delivery state, are oriented radially outward relative to the atraumatic tip in the expanded deployed state, and are oriented distally relative to the atraumatic tip in the retracted withdrawal state.

公开(公告)号：US20200069411A1

公开(公告)日：2020-03-05

申请号：US16553394

申请日：2019-08-28

Applicant: Cook Medical Technologies LLC

Inventor： Ruwan Sumanasinghe

IPC: A61F2/07 ,  D03D3/02

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.

公开(公告)号：US20190030314A1

公开(公告)日：2019-01-31

申请号：US15662130

申请日：2017-07-27

Applicant: Cook Medical Technologies LLC

Inventor： Ruwan Sumanasinghe

IPC: A61M39/28

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.