Catheter and spring element for contact force sensing

US12178662B2 · kind B2 · utility

Assignee

• Boston Scientific Scimed, Inc. · US

Inventors

• Kimberly A. Miklos · Plymouth, US
• Joseph Walker · Avon, US
• Edward J. Maierhofer · Brooklyn Park, US
• Garth Mindermann · Bloomington, US
• Devon N. Arnholt · Shoreview, US
• Todd College · Little Canada, US

Key dates

• Filing date: May 22, 2018
• Grant date: Dec 31, 2024
• Expiry date: Dec 11, 2040

Classification

• Technology area (CPC A): Human Necessities
• CPC primary: A61M2025/0002
• WIPO field: Medical technology
• WIPO sector: Instruments

Abstract

A spring element for a contact force sensing medical catheter. The spring element includes a first ring, a second ring spaced apart from the first ring, a plurality of struts connecting the first ring to the second ring, and a plurality of interlocking features. The second ring and the first ring are coaxially aligned with a longitudinal axis of the spring element. The plurality of struts is configured to permit elastic, relative axial and radial displacement between the first ring and the second ring. The plurality of interlocking features is configured to limit the relative axial and radial displacement between the first ring and the second ring.