Cutting device for skin for obtaining small blood samples in almost pain-free manner

US6210421A · kind A · utility

Assignee

• Roche Diagnostics GMBH · DE

Inventors

• Dirk Bocker · Heidelberg, DE
• Heinrich Fruhstorfer · Marburg, DE

Key dates

• Filing date: Oct 13, 1999
• Grant date: Apr 3, 2001
• Expiry date: Oct 13, 2019

Classification

• Technology area (CPC A): Human Necessities
• CPC primary: A61B5/15188
• WIPO field: Medical technology
• WIPO sector: Instruments

Abstract

Cutting device for skin for obtaining small blood samples from human or animal tissue in an almost pain-free manner. A blade (13) is made to oscillate by an oscillator (14, 32) and is lowered into the tissue and again retracted at a relatively slow speed. In a first embodiment, the blade oscillates essentially parallel to the cutting edge of the blade and the tissue surface. In a second embodiment, the blade oscillates essentially perpendicular to the tissue surface. An advantage of the device of the invention is the reduced pain during pricking.