Catheter system for vascular re-entry from a sub-intimal space

US7004173B2 · kind B2 · utility

Assignee

• LuMend, Inc. · US

Inventors

• Kurt D. Sparks · Redwood City, US
• Jeffrey L. Emery · Emerald Hills, US
• Brent Seybold · Santa Clara, US
• David J. Kupiecki · San Francisco, US
• C. Danielle Pinson · Mountain View, US
• Allen W. Madsen · San Jose, US
• Michael Keleher · Redwood City, US
• Sergio Salinas · Redwood City, US
• Benjamin J. Clark · Redwood City, US
• Matthew R. Selmon · Atherton, US

Key dates

• Filing date: Dec 5, 2001
• Grant date: Feb 28, 2006
• Expiry date: Nov 4, 2022

Classification

• Technology area (CPC A): Human Necessities
• CPC primary: A61B2090/3782
• WIPO field: Medical technology
• WIPO sector: Instruments

Abstract

A catheter system and corresponding methods are provided for accessing a blood vessel true lumen from a sub-intimal plane of the vessel. The catheter system includes visualization elements for determining the orientation of the true lumen with respect to the sub-intimal plane at an identified entry site from a position in the sub-intimal plane. The entry site is distal to a chronic total occlusion (CTO). The catheter system also includes a system for physically securing tissue of the sub-intimal plane at the entry site to the catheter system. The attaching system reduces or eliminates catheter float within the sub-intimal space. The catheter system further includes re-entry devices to establish and maintain a path from the sub-intimal plane back into the vessel true lumen.