Cook Incorporated

Cook Group, Incorporated

Barry T Uchida

Josef Rosch

Hans A Timmermans

Munehiro Maeda

Dusan Pavcnik

Frederick S Keller

Amy S Thurmond

An endovascular graft prosthesis for arrangement at an aneurysm positioned in the vicinity of a bifurcation in an arterial system having a main lumen and a first and a second branch lumen. The endovascular graft prosthesis includes a prosthetic device with at least one expandable tubular frame body for arrangement in the main lumen and a first and a second graft limb. The frame body is contractible into a first shape with a smaller diameter for introduction to a vascular site upstream of the aneurysm and is radially expandable into a second shape having a larger diameter and an inner lumen. The frame body is provided with a covering which extends across the inner lumen of the tubular frame body and has two apertures each of which has a diameter of less than half the larger diameter of the frame body. The first and second limbs have a cranial end for mounting at one of the apertures and a caudal end for arrangement in one of the branch lumens. The covering is a hindrance to blood flowing past the frame body except for blood flowing into the first and second graft limbs mounted at the two apertures.

Endovascular prosthetic device, an endovascular graft prothesis with such a device, and a method for repairing an abdominal aortic aneurysm

A self-expanding endovascular stent formed of stainless steel wire which is bent into an elongated zigzag pattern. The zigzag pattern has a plurality of substantially straight wire sections of various lengths separating a plurality of bends. The zigzag pattern is helically wound about a central axis to define a tubular shape such that a majority of the bends are disposed in a helix. Adjacent bends in the helix are interconnected with a filament. The stent is capable of being radially compressed such that the straight wire sections and the bends are tightly packed around a central axis. The stent resiliently self-expands to assume a tubular shape when released from the compressed state. Depending on the pattern of the lengths of the straight wire sections in the zigzag pattern, the final tubular shape can be made irregular to match a patient's vascular system. In other words, the diameter of the tube which is defined by the stent can be made to vary along the length of the stent. Stents of the present invention are used to expand a passageway, hold a passageway open, or create a passageway.

Spiral stent

A hysterography device is provided which avoids the various disadvantages inherent in prior art devices, namely patient discomfort, incomplete seal-off of the cervical canal, complexity, and lack of provision for introduction of catheters or filberoptic devices into the uterine cavity through a sterile conduit. A handle having a conduit therein is provided for the introduction of catheters, coaxial catheter systems, fiberoptic devices, and contrast media. A cup at the distal end of the handle is vacuum or suction seated on the cervix of the patient to seal contrast media in the cervical canal. A movable cone may be provided for an enhanced seal. Preferably, the cup and the handle are soft and flexible plastic allowing for better seating on the cervix and better operator manipulation. A variety of cup shapes and sizes may be used. Vacuum suction in the cup may be provided by an independent flexible conduit. A method of use of such device is provided.

Hysterography device and method

Growing community of inventors

Lake Grove, OR, United States of America

Barry T Uchida