Body fluid extraction device

US11147485B2 · kind B2 · utility

Assignee

• MIDGE MEDICAL GMBH

Inventors

• Michael Diebold · Berlin, DE
• Markus Riester · Seiersberg, AT
• Jörn Bungartz · Chorin, DE

Key dates

• Filing date: May 3, 2017
• Grant date: Oct 19, 2021
• Expiry date: Mar 15, 2038

Classification

• Technology area (CPC A): Human Necessities
• CPC primary: A61B5/6833
• WIPO field: Medical technology
• WIPO sector: Instruments

Abstract

A device for extracting a body fluid and testing a predetermined analyte or property of the fluid is provided. The device comprises a hollow needle having a channel linking a base end and a tip, a collection chamber having an input end in fluid communication with the channel, a testing chamber, a solution chamber and a flow control. The collection chamber comprises a capillary wick configured to transport at least a fraction of the body fluid away from the input end. The testing chamber comprises a testing unit including a reacting material configured to react to a predetermined analyte or property of the fluid and the solution chamber comprises a buffer solution. A flow control is also provided for a transfer of the buffer solution from the solution chamber to the collection chamber and a transfer of the body fluid from the collection chamber to the testing chamber.