Electric toothbrush

US7469440B2 · kind B2 · utility

Assignee

• The Braun Corporation · DE

Inventors

• Bernhard Boland · Frankfurt, DE
• Christian Junk · Eschborn, DE

Key dates

• Filing date: Aug 1, 2003
• Grant date: Dec 30, 2008
• Expiry date: Mar 15, 2025

Classification

• Technology area (CPC A): Human Necessities
• CPC primary: A61C17/222
• WIPO field: Medical technology
• WIPO sector: Instruments

Abstract

An electric toothbrush including a pressure fluid device for applying fluid under pressure to teeth to be cleaned or to a bristle set. The pressure fluid device includes a pressure fluid supply in the interior of a movable drive translator. A brush part with a carrier tube is movably mounted with a drive translator therein adapted to be coupled to a drive element in a handle part. A movably mounted bristle carrier mounts a set of bristles and is adapted to be driven in an oscillatory manner by the drive translator. A motor in the handle part drives a drive element adapted to be coupled to a drive element in the brush part and with a pressure fluid conveying device driven by the motor. A pressure fluid channel, which directs the pressure fluid to the toothbrush head, is integrated into the drive translator.