Occlusion-crossing devices, imaging, and atherectomy devices

US9572492B2 · kind B2 · utility

Assignee

• Avinger, Inc. · US

Inventors

• John B. Simpson · Woodside, US
• Himanshu N. Patel · San Jose, US
• Michael Zung · Redwood City, US
• Charles W. McNall · Cottonwood Heights, US
• Priyanshu Gupta · Palo Alto, US
• Maegan K. Spencer · La Honda, US
• Christopher B. White · Mesa, US
• Dennis W. Jackson · San Francisco, US
• John Black · San Mateo, US

Key dates

• Filing date: Feb 3, 2014
• Grant date: Feb 21, 2017
• Expiry date: Feb 19, 2035

Classification

• Technology area (CPC F): Mechanical Engineering; Lighting; Heating
• CPC primary: F04C2270/0421
• WIPO field: Medical technology
• WIPO sector: Instruments

Abstract

A catheter device for crossing occlusions includes an elongate body, a central lumen extending within the elongate body from the proximal end to the distal end, a rotatable tip at the distal end of the elongate body, and an OCT imaging sensor. The rotatable tip is configured to rotate relative to the elongate body. The OCT imaging sensor includes an optical fiber coupled with the rotatable tip and configured to rotate therewith. A distal end of the elongate body includes one or more markers configured to occlude the OCT imaging sensor as it rotates. A fixed jog in the elongate body proximal to the distal end of the catheter positions the distal end of the catheter at an angle relative to the region of the catheter proximal to the fixed jog and is aligned with the one or more markers on the elongate body.