Rex Medical, L.p.

Argon Medical Devices Inc.

Stephen A DeFonzo

James Frederick McGuckin

John D Leedle

James Erich Bressler

Thanu Anidharan

James S Tarmin

John H Thinnes, Jr

Lindsay L Carter

Jr James F Mcguckin

John H Thinnes Jr

A device for closing an aperture in a vessel wall including a covering member positionable inside the vessel against the internal opening of the aperture and having a dimension to prevent egress of fluid through the aperture. The covering member has a proximal surface and a distal surface, the distal surface having a concave surface and the proximal surface having a raised surface, wherein four openings are positioned in the raised surface. First and second retainers are positionable external of the vessel and first and second connecting members advance the respective first and second retainers toward the covering member.

Vascular hole closure device

A dialysis catheter including a first portion having an outer wall having a first diameter, an elongated distal portion having a second diameter smaller than the first diameter, and a transition region between the first portion and distal portion. A first longitudinally extending venous lumen is configured to deliver blood. First and second independent longitudinally extending arterial lumens are configured to withdraw blood from a patient. The venous lumen and arterial lumen have first and second regions each positioned a first distance from the outer wall of the catheter and a third region positioned a second shorter distance from the outer wall of the catheter to form an arch shaped wall portion progressively increasing in thickness from the third region toward the first region and from the third region to the second region.

Dialysis catheter

A dialysis catheter having a first portion having a first diameter, an elongated distal portion having a second diameter smaller than the first diameter, and a transition portion between the first portion and distal portion. The first portion includes first and second independent longitudinally extending blood withdrawal lumens and the transition portion has first and second opened areas separated by a rib, the first opened area forming a first terminal opening for the first withdrawal lumen and the second opened area forming a second terminal opening for the second withdrawal lumen. A longitudinally extending blood delivery lumen configured to deliver blood terminates in a delivery opening in the distal portion of the catheter.

A vessel filter having a first region and a second region, the filter movable between a collapsed position for delivery to the vessel and an expanded position for placement within the vessel. The first region has a filter portion having a converging region to direct particles toward the center of the filter and includes a plurality of spaced apart filter struts. The struts each have a strut height defined as a distance between a first wall and a second wall. A plurality of hooks are at the second region, the hooks having a vessel penetrating tip and a width greater than the width of the strut from which it extends such that the penetrating tip portion of the hook extends beyond the first wall.

Growing community of inventors

Wayne, PA, United States of America

Stephen A DeFonzo