Instruments and system for producing a sample of a body fluid and for analysis thereof

US9186104B2 · kind B2 · utility

Assignee

• Roche Diabetes Care, Inc. · US

Inventors

• Uwe Kraemer · Ilvesheim, DE
• Volker Zimmer · Laumersheim, DE
• Wolfgang Roedel · Heidelberg, DE
• Hans List · Prien am Chiemsee, DE
• Stephan-Michael Frey · Griesheim, DE
• Christian Hoerauf · Oftersheim, DE
• Paul Patel · Palo Alto, US

Key dates

• Filing date: Apr 29, 2013
• Grant date: Nov 17, 2015
• Expiry date: Aug 4, 2033

Classification

• Technology area (CPC A): Human Necessities
• CPC primary: A61B2562/0295
• WIPO field: Medical technology
• WIPO sector: Instruments

Abstract

Instrument for producing a sample of body liquid for analysis by piercing the skin with a lancing element having a skin piercing tip. The instrument has a housing and a lancing drive for driving a lancing element connected thereto in a puncturing movement. A pressure ring surrounds a skin contact opening and is adapted for pressing against the skin such that the skin bulges into the opening for promoting expression of body fluid. The skin contact opening has an opening area corresponding to a circle with a diameter of at least 3 mm and at most 8 mm, and the instrument comprises a pressing force control device for controlling the pressing force between the pressure ring and the skin at the time of triggering the puncturing movement, to be at least 3 N and at most 8 N.