Medtronic Vascular, Inc.

John K Tuohy

Sean Ward

Barry O'Connell

Michael Donegan

Michael Morrissey

A guide extension catheter assembly including a guide extension catheter and a support device. The guide extension catheter includes a shaft and a tubular member. The support device includes a push member and a shuttle member. The guide extension catheter assembly is configured to selectively provide a delivery state in which at least a portion of the shuttle member is disposed within the lumen, a leading end of the shuttle member is distal a distal end of the tubular member, and the shuttle member is directly, physically connected to the tubular member. In the delivery state, a longitudinal distal force applied to the push member is transferred to the tubular member as a longitudinal distal force via the shuttle member. The guide extension catheter assemblies of the present disclosure can promote a two stage guide extension catheter deployment.

Guide extension catheter assemblies, systems and methods of use

A guide extension catheter includes a proximal shaft, a distal shaft, and a plurality of perfusion openings. The distal shaft includes a jacket and a helical coil structure embedded in the jacket, the distal shaft defining a lumen. The plurality of perfusion openings are disposed though the jacket of the distal shaft between windings of the helical coil structure. The guide extension catheter provides additional back support to the guide catheter. The plurality of perfusion openings allow fluid communication between an area outside the guide extension catheter and the lumen.

Guide extension catheter with perfusion openings

A catheter includes a catheter shaft having a shaft wall and a lumen extending longitudinally within the shaft wall. The lumen is bounded in radially outward and radially inward directions. The lumen includes a feed portion and an identification symbol fluidly connected to the feed portion. The lumen is configured to receive a contrast media. The lumen may be formed by a channel formed in an outer surface of a first shaft of the catheter shaft, and a covering disposed around the outer surface of the first shaft to cover the channel.

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Clare, Ireland

John K Tuohy