Implantable measuring device, particularly a pressure measuring device for determining the intracardial or intraluminal blood pressure

US6524256B2 · kind B2 · utility

Assignee

• Biotronik Mess -und Therapiegeraede GmbH & Co. Ingenieurbuero Berlin · DE

Inventors

• Max Schaldach · Erlangen, DE
• Bernhard Döllgast · Wolfsberg, AT
• Gregor Niewalda · Buckenhof, DE

Key dates

• Filing date: Jul 23, 2001
• Grant date: Feb 25, 2003
• Expiry date: Jul 23, 2021

Classification

• Technology area (CPC A): Human Necessities
• CPC primary: A61B2562/245
• WIPO field: Medical technology
• WIPO sector: Instruments

Abstract

An implantable measuring device includes a catheter-like main body that can be positioned in a body cavity. The main body has a pressure-sensitive sensor thereon and a signal line is coupled to the sensor. The signal line transmits measuring signals generated by the sensor and corresponding to the detected pressure to a signal evaluation unit. A cleaning element is coupled to the sensor. The cleaning element is in the form of a piezoelectric actuator that can be set to vibrate by electrical excitation. The vibrations of the cleaning unit are transferable to the sensor for the removal of deposits.