Electrode lead for implanted medical device, especially for heart pacemaker

摘要

The far end of the probe (10) has a supple insulating sheath (12) which bears a cylindrical rigid element (14). An electrode (16) is attached to the rigid element (14) and receives a electric potential via a coiled spring conductor (22). The rigid element is covered by a sleeve (24) which is gripped (26) between the rigid element and the electrode (16). The free part of the sleeve (28) covers the far end (32) of the sheath (12). The sleeve has barbes (34) which lodge in the endocardiac cavity until sufficient pressure is exerted to change the shape of the deformable sleeve.