William Cook, Europe A/s

Other

Cook Incorporated

Aleksandr P Korshok

Zaza Alexandrovich Kavteladze

Andrej A Kadnikov

Palle M Hansen

Beth Ann Kirts

Scott E Boatman

Zaza A Kavteladze

A prosthetic device for sustaining a vessel or hollow organ lumen (a stent) having a tubular wire frame ( ) with rows of elongate cells ( ) each having a larger axis and a smaller axis. The cells are arranged with the larger axis in the circumferential direction of the frame ( ) and the smaller axis parallel to the axial direction thereof. Each cell is formed by two U-shaped wire sections, and in a plane perpendicular to the longitudinal axis one of the branches of the U-shaped wire sections in one row form together a closed ring shape ( ) which provides the frame ( ) with large radial stiffness. In the axial direction the frame ( ) has only low stiffness so that it easily conforms to the vascular wall even if this deforms due to external loads. The interconnection between the cells ( ) may be flexible.

Implantable, self-expanding prosthetic device

A prosthetic device for sustaining a vessel or hollow organ lumen (a stent) have a tubular wire frame ( ) with rows of elongate cells ( ) each having a larger axis and a smaller axis. The cells are arranged with the larger axis in the circumferential direction of the frame ( ) and the smaller axis parallel to the axial direction thereof. Each cell is formed by two U-shaped wire sections, and in a plane perpendicular to the longitudinal axis one of the branches of the U-shaped wire sections in one row form together a closed ring shape ( ) which provides the frame ( ) with large radial stiffness. In the axial direction the frame ( ) has only low stiffness so that it easily conforms to the vascular wall even if this deforms due to external loads. The interconnection between the cells ( ) may be flexible.

Implantable self expanding prosthetic device

A prosthetic device for sustaining a vessel or hollow organ lumen (a stent) has a tubular wire frame ( ) with rows of elongate cells ( ) having a larger axis and a smaller axis. The cells are arranged with the larger axis in the circumferential direction of the frame ( ) and the smaller axis parallel to the axial direction thereof. Each cell is formed by two U-shaped wire sections, and in a plane perpendicular to the longitudinal axis one of the branches of the U-shaped wire sections in one row form together a closed ring shape ( ) which provides the frame ( ) with large radial stiffness. In the axial direction the frame ( ) has only low stiffness so that it easily conforms to the vascular wall even if this deforms due to external loads. The interconnection between the cells ( ) may be flexible.

An introducer (10) method of percutaneously deploying a self-expanding stent (14) in a body vessel or duct (43). The stent introducer includes an outer elongated member tube (11) having a passage (12) extending longitudinally therein and operable in a first direction (13) for deploying the self-expanding stent in a collapsed condition from the outer member passage. An inner elongated member (15) is positioned in the outer member passage and is operable in a second direction (16) for deploying the stent from the outer member passage. An interconnection mechanism (17) is connected to the outer and inner members for operation thereof, whereby a stent in a collapsed condition is deployed from the outer member passage to an expanded condition. When deployed, the expanded portion of the stent remains fixedly positioned longitudinally in the body vessel or duct as the remaining portion is deployed from the outer member passage. The inner member operates a second operable distance (34) and includes at least one protuberance (19) for pushing the stent out of the outer member passage as the outer member is concomitantly withdrawn a first operable distance (33) from the collapsed, self-expanding stent. The first operable distance is the short length (36) of the stent in an expanded condition, whereas the second operable distance (34) is approximately the distance (37) in the long and short lengths of the stent. The interconnection mechanism of the introducer further includes a transfer assembly (23) coupled to the outer and inner members for controlling the travel distance and direction thereof.

Stent introducer and method of use

Medical article for implantation into the vascular system of a patient

Implantable self-expanding stent

Prosthetic device for sustaining a blood-vessel or hollow organ lumen

Growing community of inventors

Moscow, Russia

Aleksandr P Korshok