Device for administering a fluid

US12290665B2 · kind B2 · utility

Assignee

• Henke-Sass, Wolf GmbH · DE

Inventors

• Frank Altermann · Tuttlingen, DE
• Maikel WIEDMANN · Immendingen, DE
• Robin Sauter · Tuttlingen, DE
• Daniel Seeh · Immendingen, DE
• Anika SCHMIDT · Fridingen an der Donau, DE

Key dates

• Filing date: Jul 9, 2020
• Grant date: May 6, 2025
• Expiry date: May 15, 2042

Classification

• Technology area (CPC A): Human Necessities
• CPC primary: A61M2205/3375
• WIPO field: Medical technology
• WIPO sector: Instruments

Abstract

A device for administering a fluid can include a cylinder, a piston connected to a piston rod, and a tensioning device connected to the piston rod. In a dispensing procedure, a ramp track is rotated until a roller runs over a transfer region and is accelerated toward the first plateau and, as a result, the piston is moved toward an open dispensing end. The ramp track runs on the face side of a wall extending along a circular path. A cover engages over the ramp track, the driver and the roller and has at least one scraper extending counter to the first direction and extending within the wall as far as the inner side of the wall, and thus scrapes off lubricant located on the inner side from the inner side.