Medical devices and implements with liquid-impregnated surfaces

US11684705B2 · kind B2 · utility

Assignee

• Massachusetts Institute of Technology · US

Inventors

• J. David Smith · Arlington, US
• Rajeev Dhiman · Pleasanton, US
• Adam T. Paxson · Cambridge, US
• Christopher J. Love · Atlantis, US
• Brian R. Solomon · Rockville, US
• Kripa K. Varanasi · Lexington, US

Key dates

• Filing date: Jun 9, 2021
• Grant date: Jun 27, 2023
• Expiry date: Jun 9, 2041

Classification

• Technology area (CPC Y): Emerging Cross-Sectional Technologies
• CPC primary: Y10T428/24372
• WIPO field: Pharmaceuticals
• WIPO sector: Chemistry

Abstract

Described herein are medical devices and medical implements with high lubricity to flesh (or biological fluid) and/or inhibited nucleation on its surface. The device has a surface comprising an impregnating liquid and a plurality of micro-scale and/or nano-scale solid features spaced sufficiently close to stably contain the impregnating liquid therebetween. The impregnating liquid fills spaces between said solid features, the surface stably contains the impregnating liquid between the solid features, and the impregnating liquid is substantially held in place between the plurality of solid features regardless of orientation of the surface.