Resistance-based measurements as a means of assessing the proximity and interaction forces of catheters relative to the inner walls of the heart

摘要

Catheter system (1) for implanting an intracardiac pacemaker (2), comprising: - A catheter (3) having a protective sleeve (4) for receiving the pacemaker (2), wherein the protective sleeve (4) forms a distal catheter tip (40), and a strain sensor (5) arranged on the protective sleeve (4) for assessing proximity of the catheter tip (40) to an inner wall (W) of a patient's heart and of forces exerted by the catheter tip (40) on the inner wall (W), wherein the strain sensor (5) preferably comprises a plurality of interdigitated finger-shaped electrodes (50).