Surface modification for dialysis catheters

US9795762B2 · kind B2 · utility

Assignee

• ARROW INTERNATIONAL LLC · US

Inventors

• Michael A. Bouchard · Wyomissing, US
• Zheng Zhang · Cambridge, US
• Jun Li · Ningbo City, CN
• Matt Skinner · Cambridge, US
• Laurence A. Roth · Windham, US
• Douglas Weaver · Bedford, US
• Eric W. Marchese · Cambridge, US
• Robert L. Reed · Heysham, GB
• Chad C. Huval · Somerville, US
• Christopher R. Loose · Cambridge, US

Key dates

• Filing date: Dec 14, 2012
• Grant date: Oct 24, 2017
• Expiry date: Dec 14, 2034

Classification

• Technology area (CPC Y): Emerging Cross-Sectional Technologies
• CPC primary: Y10T428/1393
• WIPO field: Medical technology
• WIPO sector: Instruments

Abstract

Catheters and a method of preparation thereof, the catheter comprising a catheter body, a juncture hub, extension lines and connectors, the catheter body having a proximal end, a distal end, an exterior surface, a tip region having a length of 10 cm measured from the distal end of the catheter body, and at least two lumen, each of the catheter body lumen having a proximal end, a distal end, a Lumen Aspect Ratio of at least 3:1, and an intraluminal surface, the distal ends of the at least two catheter body lumen being (i) non-coterminus or (ii) laser-cut, the exterior surface of the catheter body in the tip region or the intraluminal surface of the two catheter body lumen comprising a hydrophilic polymer layer having an Average Dry Thickness of at least about 50 nanometers.