Body fluid sampling device

US8814808B2 · kind B2 · utility

Assignee

• Roche Diagnostics Operations, Inc. · US

Inventors

• Irio Calasso · Arth, CH
• Patrick Griss · Moutier, CH
• Emad Sarofim · Hagendorn, CH
• Rainer Jaeggi · Thalwil, CH
• Uwe Kraemer · Ilvesheim, DE
• Dave Hasker · San Jose, US
• Volker Zimmer · Laumersheim, DE
• Wilifried Schmid · Mannheim, DE
• Otto Fuerst · Viernheim, DE
• Hans List · Prien am Chiemsee, DE
• Hans-Peter Haar · Wiesloch, DE
• Theo Arnitz · Philippsburg, DE
• Steven N. Roe · San Mateo, US

Key dates

• Filing date: Sep 10, 2010
• Grant date: Aug 26, 2014
• Expiry date: Sep 10, 2030

Classification

• Technology area (CPC A): Human Necessities
• CPC primary: A61B5/150282
• WIPO field: Medical technology
• WIPO sector: Instruments

Abstract

Body fluid sampling device comprising a skin-piercing element having a collection zone for receiving body fluid. In one embodiment, the collection zone includes a plurality of holes, e.g., 3 or more holes, or 50 to 100 holes. The hole size may be small, e.g., having a diameter of 0.01 to 0.5 mm. The holes may or may not extend through the lancet. In some embodiments, the holes have a depth of 50 to 500 μm. In other embodiments, the collection zone is porous, or is a roughened area. The collection zone can take up a very small volume of body fluid, e.g., 3 to 10 nL, in a very short time period, e.g., less than 0.5 seconds. In other embodiments, the device further comprises a fluid receiving means spaced apart from the collection zone so that body fluid in the collection zone will not contact the fluid receiving means initially.