Intravascular lithotripsy

US11918285B2 · kind B2 · utility

Assignee

• FASTWAVE MEDICAL INC. · US

Inventors

• Jichao Sun · West Lafayette, US
• Parker Hagen · Maple Grove, US
• Dannah Dean · Minnetonka, US
• Lauren Eno · Minnetonka, US
• Brady Hatcher · Rogers, US
• Curtis Goreham-Voss · Maple Grove, US
• Tristan Tieso · Fridley, US
• Edward Anderson · Maple Grove, US
• Scott Nelson · Mission Viejo, US
• Dean S. Irwin · Carlsbad, US
• Bryan Goh · Maple Grove, US
• Charles Anthony Plowe · Blaine, US
• Randy Beyreis · Rogers, US

Key dates

• Filing date: May 23, 2023
• Grant date: Mar 5, 2024
• Expiry date: May 23, 2043

Classification

• Technology area (CPC A): Human Necessities
• CPC primary: A61B2090/064
• WIPO field: Medical technology
• WIPO sector: Instruments

Abstract

A medical device may include an elongated body having a distal elongated body portion and a central longitudinal axis. The medical device may include a balloon positioned along the distal elongated body portion. The balloon may be configured to receive a fluid to inflate the balloon such that an exterior balloon surface contacts a calcified lesion within a patient's vasculature. The medical device may include one or more pressure wave emitters positioned along the central longitudinal axis of the elongated body. The one or more pressure wave emitters may be configured to propagate at least one pressure wave through the fluid to fragment the calcified lesion. At least one pressure wave emitter may include an optical fiber configured to transmit laser energy into the balloon. The laser energy may be configured to create a cavitation bubble in the fluid.