Precision depth control lancing tip

US7736322B2 · kind B2 · utility

Assignee

• Roche Diagnostics Operations, Inc. · US

Inventors

• Steven N. Roe · San Mateo, US
• Chris Wiegel · San Jose, US
• Hans-Juergen Kuhr · Mannheim, DE
• Wilhelm Hildebrandt · Darmstadt, DE
• Thomas Weiss · Mannheim, DE
• Richard Forster · Pfreimd, DE
• Matt Hannant · London, GB
• Peter Sachsenweger · Zeitlarn, DE

Key dates

• Filing date: Dec 23, 2003
• Grant date: Jun 15, 2010
• Expiry date: Jun 12, 2027

Classification

• Technology area (CPC A): Human Necessities
• CPC primary: A61B5/15194
• WIPO field: Medical technology
• WIPO sector: Instruments

Abstract

A bodily fluid sampling device is operable to lance with a precise depth and express fluid from both fingertip and alternate sites. In one form, the device is operable to adjust the penetration depth of the lancet into the skin. The bodily fluid sampling device includes a lancet adapted to form an incision in skin. A skin contacting member has an orifice through which the lancet extends when lancing the skin. The orifice has a first opening size that is sized to flatten the skin around the lancet during lancing. The orifice has a second opening size that is larger than the first opening size after the incision is formed to express fluid from the incision.