Advanced Cardiovascular Systems, Inc.

Abbott Cardiovascular Systems, Inc.

Edwin P Mahieu

David H Burkett

Wayne E Cornish

David K Wrolstad

Brad M Kellerman

Peter J D'Aquanni

Mark Richardson

Ryan Grandfield

Mo Jafari

Joy E Morris

Kevin Britton

A guide wire for advancing a medical device such as a catheter through a patient's body lumen which has an elongated core with proximal and distal core section, a flexible tubular member such as a coil on the distal end. The wire core includes surface textures that are translated into the overlying coating. Alternatively, the coating has its own surface texture. The surface textures include randomly or non-randomly spaced bumps, divots, ridges, helical grooves, longitudinal grooves, undulations, etc.

Textured polymer coated guide wire and method of manufacture

An intravascular guide wire having at least two core materials joined together without the use of a hypotube. There is a core having a proximal core section with a proximal end and a distal end and a distal core section with a proximal end and a distal end. The distal end of the proximal core section and the proximal end of the distal core section are ground into complementary shapes, and then placed into a fixture in opposing directions with a small gap in-between the ends to receive a mass of hardened material to wick therein. Once the proximal and distal core sections are bonded, welded, brazed, cemented, or soldered together, the guide wire is then ground to a required outer diameter, depending on the design needs of the specific guide wire.

Apparatus and method for joining two guide wire core materials without a hypotube

This invention comprises a guidewire with a tenacious lubricious coating on its surface comprising a finely divided lubricious particulate. The coatings of this invention have a thickness of not more than about 0.00002 inch, a coefficient of friction of not more than about 0.030 and a hardness not less than about 1.0 Mohs. Preferably, the surface coating comprises a monomolecular layer of particulate tungsten disulfide. The guidewire of this invention incorporates an improved distal tip configuration comprising a flexible elongate core member which has at least one tapered section at its distal extremity and a flattened distal portion. The distal portion has two or more flattened regions having cross-sectional areas which decrease in the distal direction. A flexible helical coil is attached to the core member and comprises three or more distinct regions, each having increasing coil spacing in the distal direction. Preferably, the entire length of the guidewire proximal to the helical coil has the lubricious particulate surface coating of the invention.

Intraluminal device with lubricious surface

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Temecula, CA, United States of America

Edwin P Mahieu