Catheter having tapered guide surface

US9078691B2 · kind B2 · utility

Assignee

• Boston Scientific Limited · BB

Inventors

• David B. Morris · Anoka, US
• Michael J. Bonnette · Minneapolis, US
• Jason M. Bronstad · St. Francis, US
• Corey Rasch · Stillwater, US
• Jason T. Anderson · Deephaven, US
• Laszlo Trent Farago · Hudson, US
• Diana Dutcher · Maple Grove, US
• Eric J. Thor · Arden Hills, US

Key dates

• Filing date: Mar 7, 2013
• Grant date: Jul 14, 2015
• Expiry date: Apr 24, 2033

Classification

• Technology area (CPC Y): Emerging Cross-Sectional Technologies
• CPC primary: Y10T29/49826
• WIPO field: Medical technology
• WIPO sector: Instruments

Abstract

Medical devices and methods for making and using medical devices are disclosed. An example catheter is disclosed. The catheter comprises a catheter body having a catheter lumen and a high pressure tube disposed within the catheter lumen. The high pressure tube has a substantially circular cross section. The catheter also includes a fluid jet loop coupled to the high pressure tube at a transition section. The transition section has a circular cross section and a non-circular cross section. The fluid jet loop includes fluid jet orifices along a tapered loop guide surface. The catheter also includes a distal guide. The intermediate guide surface of the catheter lumen flushly engages with a leading edge of the tapered loop guide surface and the distal guide is configured to guide the instrument over the intermediate guide surface, the tapered loop guide surface and through the fluid jet loop.