Cook Medical Technologies LLC

Bent Oehlenschlaeger

Erik Edelbo Rasmussen

Blayne A Roeder

William Kurt Dierking

Kim Moegelvang Jensen

Jarin A Kratzberg

Steven Charlebois

Richard Swift

Sharath Gopalakrishnamurthy

Alan R Leewood

Matthew S Huser

David Brocker

Timothy A M Chuter

Kim Møgelvang Jensen

Thomas A Osborne

David Eric Orr

Michael W Hardert

Tilo Kölbel

Julie E Urbanski

Kim Mogelvang Jensen

Palle Munk Hansen

Timothy A Chuter

Jeppe Dufresne Johnsen

Erik Edelboe Rasmussen

Jesper Schade Petersen

Annette Petersen

Martin W Schmidt

Steven J Charlebois

Kim Jensen

Jens Vejby Schultz

Disclosed is a stent graft, including a graft body, a sealing stent at the proximal end of the graft body and completely overlapped by the graft body, and a diameter reducing loop arrangement. The sealing stent includes proximal apices at a proximal end thereof and distal apices at a distal end thereof. The diameter reducing loop arrangement includes a loop element. The loop element includes a first end, a second end, and a strand section from the first end to the second end. The first end is attached to the distal end of the sealing stent. The loop element is configured to pass circumferentially around the distal end of the sealing stent and have a release wire pass through a loop at the second end. The diameter reducing loop arrangement is configured to constrict the distal apices of the sealing stent and cause the sealing stent to adopt a substantially conical or frustoconical shape.

Stent graft

A stent graft for deployment in a curved lumen such as the aortic or thoracic arch comprises a constraining mechanism at its proximal end. A stent provided at the proximal end of the stent graft includes loops of material that co-operate with restraining wires that extend between a central guide wire carrier and a restraining wire cannula. The constraining mechanism acts to maintain the proximal stent constrained at both the proximal and distal ends of the proximal stent. The proximal stent is thus allowed to expand after expansion of the remainder of the stent graft during deployment. In an embodiment, the constraining mechanism acts to constrain two adjacent struts of the proximal stent at three points radially therearound, at the proximal end of the stent and at the distal end of the stent. The proximal stent may then overlap with the interior of an adjacent stent at an inner part of a curved vessel.

Introducer for deploying a stent graft in a curved lumen and stent graft therefor

A stent graft for deployment in a curved lumen such as the aortic or thoracic arch comprises a constraining mechanism at its proximal end. A stent provided at the proximal end of the stent graft includes loops of material that co-operate with restraining wires that extend between a central guide wire carrier and a restraining wire cannula. The constraining mechanism maintains the proximal stent constrained at both of its proximal and distal ends. The proximal stent can then expand after expansion of the remainder of the stent graft during deployment. In an embodiment, the constraining mechanism acts to constrain two adjacent struts of the proximal stent at three points radially therearound, at the proximal end of the stent and at the distal end of the stent. The proximal stent may then overlap with the interior of an adjacent stent at an inner part of a curved vessel.

A system for deploying a stent graft includes a stent graft. The stent graft has a tubular structure and includes first and second end stents and at least one stent between the first and second end stents. The system also includes a plurality of constraining mechanisms arranged along the length of the stent graft constraining the stents of the stent graft, and an actuation mechanism configured to release the plurality of constraining mechanisms in order from the first end to the second end of the stent graft and circumferentially sequentially from about the stents.

System and method for the sequential expansion of a medical device

A stent graft includes a tubular graft element to which there are attached a plurality of stent rings. The stent rings are formed of a plurality of stent struts arranged in a zig-zag arrangement with alternating peaks and valleys. The end-most stent is located at the proximal end of the graft tube. Between adjacent peaks of the end most stent, there is provided a series of bridging elements. These are preferably formed of Nitinol wire and to be substantially more flexible than the stent struts. The bridging elements extend in the region of graft material between adjacent stent peaks and are attached to the graft material, for example by suturing. The bridging elements are substantially more flexible than the stent ring and therefore impart little opening force on the graft material in comparison to the force produced by the stent ring. However, the bridging elements impart enough force on the flaps of graft material between the peaks of the stent ring keep these flaps open, that is against the vessel wall. The bridging elements can provide integral barbs.

Implantable medical device

The disclosure provides a filter apparatus and method of filtering in a body vessel. The filter apparatus comprises a filter unit and an expandable introducer designed to deliver the filter unit to the target filtering site. The filter unit attaches to the expandable introducer via a plurality of anchors on the filter unit. The expandable introducer delivers and presses the anchors to the vessel wall during implantation. After implantation, the filter unit exerts minimal or about zero radial force against the vessel wall.

Low radial force filter

A stent graft () for treating Type-A dissections in the ascending aorta () is provided with a plurality of diameter reducing suture loops (-) operable to constrain the stent graft during deployment thereof in a patient's aorta. The diameter reducing loops (-) allow the stent graft () to be partially deployed, in such a manner that its location can be precisely adjusted in the patient's lumen. In this manner, the stent graft can be placed just by the coronary arteries () with confidence that these will not be blocked. The stent graft () is also provided with proximal and distal bare stents () for anchoring purposes.

Stent graft and introducer assembly

A stent graft () for treating Type-A dissections in the ascending aorta () is provided with a plurality of diameter-reducing suture loops (-) operable to constrain the stent graft during deployment thereof in a patient's aorta. The diameter-reducing loops (-) allow the stent graft () to be partially deployed, in such a manner that its location can be precisely adjusted in the patient's lumen. In this manner, the stent graft can be placed just by the coronary arteries () with confidence that these will not be blocked. The stent graft () is also provided with proximal and distal bare stents () for anchoring purposes.

A stent for use in a medical procedure having opposing sets of curved apices, where the curved section of one set of apices has a radius of curvature that is greater than the curved section of the other set of apices. One or more such stents may be attached to a graft material for use in endovascular treatment of, for example, aneurysm, thoracic dissection, or other body vessel condition.

Low profile non-symmetrical stent

An introducer assembly () including at its distal end a dilator tip () and an inner catheter for supporting an implantable medical device () for deployment, is provided with a plurality of strut elements () extending from the dilator tip () to the proximal end of the medical device (). The strut elements () act to apply both a pulling and a pushing force against the proximal end of the medical device (), having the effect of assisting in the correct positioning of the proximal end of the medical device in a patient's lumen, particularly where this is curved such as with the aortic arch. The strut elements () form part of the introducer assembly and are removed from the patient following the deployment procedure. The device avoids the need for bare stents at the end of a stent graft.

Apparatus for curving an implantable medical device in a lumen

An endoluminal prosthesis that includes a support structure comprising a curvilinear portion having a first strut and a second strut that meet at an apex. Disposed on the support structure is an anchor with an anchor body and one or more barbs extending outwardly from the anchor body and where the anchor body comprises a multi-filar tube fits at least partially about, and conforms to the first strut, second strut, and the apex.

Growing community of inventors

Skensved, Denmark

Bent Oehlenschlaeger