St. Jude Medical Ab

Anna-Karin Johansson

Kenth A Nilsson

Kjell Noren

Karin Järverud

Johan Eckerdal

Malin Öhlander

Tom Eriksson

Gunnar Westin

Annika Pohl

Koroush Lashgari

Karin Ljungström

Per Lagercrantz

Karin Lungstrom

Johan Svahn

Urban Lönn

Karin Järeverud

Cecilia Tuvstedt

An implantable lead for sensing mechanical activity of a human heart has an insulating polymeric tube extending from a proximal end to a distal end of the lead, an electrical conductor provided in the lumen of the polymeric tube, and a sensor connected to the conductor at the distal end thereof. The polymeric tube is provided with a conductive surface layer along the inner face between the polymeric tube and the electrical conductor, the conductive surface layer being in electrical contact with this conductor. Accumulation of electrical charges between the electric conductor and the polymeric tube is thereby prevented.

Implantable medical lead

A method for producing a biocompatible material of the formula NaKNbO, 0&#x2266;x&#x2266;0.8, 0.2&#x2266;y&#x2266;1, x+y=1 includes the steps of a) providing a Na-precursor and a K-precursor for NaKNbO, b) mixing the precursors in solution wherein said precursors first react to form a sol and thereafter a gel, c) heat treating the gel to obtain an oxide of the material NaKNbO, 0&#x2266;x&#x2266;0.8, 0.2&#x2266;y&#x2266;1, x+y=1. The material can be produced as a film, and the material or film can be provided on the exterior surface of a medical implant that will come into contact with body tissue and/or body fluids upon implantation thereof.

Method for producing a piezoelectric film

Synthesis of sodium potassium niobate by sol-gel

A cardiac stimulator has an implantable cardiac lead that carries a temperature sensitive element with a surface thereof in contact with biological matter. The temperature sensitive element emits a temperature signal corresponding to the temperature of biological matter, such as blood, in contact with the surface of the temperature sensitive element. Processing circuitry receives the temperature signal and determines a variability thereof within a selected time interval. A status signal is emitted dependent on this variability.

Implantable cardiac stimulator, device and system for monitoring the status of a cardiac lead

Growing community of inventors

Vallentuna, Sweden

Anna-Karin Johansson