Measuring arrangement for controlling an implantable body-assist device

US4870967A · kind A · utility

Assignee

• Siemens Aktiengesellschaft · DE

Inventors

• Roland Heinze · Munich, DE
• Hans-Dieter Liess · Schkeuditz, DE

Key dates

• Filing date: Aug 12, 1987
• Grant date: Oct 3, 1989
• Expiry date: Aug 12, 2007

Classification

• Technology area (CPC A): Human Necessities
• CPC primary: A61N1/3655
• WIPO field: Medical technology
• WIPO sector: Instruments

Abstract

An implantable arrangement for operating a body-assist device, the body-assist device including circuitry for generating electrical signals and also being implanted in a patient, includes circuitry for controlling the generation of the electric signals, a measuring probe in the patient for obtaining signals to be used by the control circuitry, a single current conductor electrically connecting the control circuitry and the measuring probe and forming a first current path therebetween, and spaced electrodes connected to the measuring probe and the control circuitry disposed in the patient with body tissue therebetween such that a second current path is formed in the body tissue.