Catheter with enhanced tensile strength

US11207497B1 · kind B1 · utility

Assignee

• Imperative Care, Inc. · US

Inventors

• Brandon Yee · Westbury, US
• Chad C. Roue · Livermore, US
• Daniel Davis · Rancho Santa Margarita, US
• Yi Yang · San Francisco, US
• Ashoor Shahbazi Yourgenlow · San Jose, US
• Jhustin Y. Scarlett · San Jose, US
• Miranda M. Ray · San Jose, US
• Farhad Khosravi · San Mateo, US

Key dates

• Filing date: Jun 9, 2021
• Grant date: Dec 28, 2021
• Expiry date: Jun 9, 2041

Classification

• Technology area (CPC A): Human Necessities
• CPC primary: A61M25/0147
• WIPO field: Medical technology
• WIPO sector: Instruments

Abstract

A neurovascular catheter has enhanced tensile strength to resist distal tip detachment during proximal retraction past an obstruction. The catheter includes an elongated flexible tubular body, having a proximal end, a distal end and a side wall defining a central lumen. A radiopaque marker is provided adjacent to the distal end. The tensile support extends axially inside the side wall and is attached to the radiopaque marker, to tether the marker to the catheter body. In one implementation, the tensile support may at least partially wrap around the marker. The marker may have a tubular sidewall with a feature to increase compressibility, such as at least one compression gap in a proximal portion of the side wall.