Finger element

US8491666B2 · kind B2 · utility

Inventor

• Stefan Schulz · Berlin, DE

Key dates

• Filing date: Nov 4, 2009
• Grant date: Jul 23, 2013
• Expiry date: Mar 29, 2030

Classification

• Technology area (CPC A): Human Necessities
• CPC primary: A61F2002/7635
• WIPO field: Medical technology
• WIPO sector: Instruments

Abstract

The invention relates to a finger element, comprising a carrier component (1), a first finger member (5) having a first articulated connection (2) to the carrier component, a second finger member (6) having a second articulated connection (7) to the first finger member, an actuator for the first articulated connection (2) with a motor having a drive shaft, and a worm gear having a threaded worm, and a toothed segment engaging on the threaded worm, and further comprising a coupling mechanism (8) between the first and second articulated connections. The object of the invention is to modify a finger element such that the finger element in the active and passive functions thereof and in the dimensions thereof comes very close to a natural finger. The object is achieved in that the threaded worm is positively mounted axially movably on the drive shaft and axially guided through separate guides.