SYSTEM AND METHODS FOR CHRONIC FIXATION OF MEDICAL DEVICES

摘要

Devices or methods such as for stimulating excitable tissue or sensing physiologic response or other signals that can use chronic fixation mechanism are described. An implantable apparatus can comprise an electrostimulation electrode assembly that can include a primary fixation member and a secondary fixation member. The primary fixation member can be actively engaged or affixed to a target tissue of a patient, and the second fixation member can be biased against the target tissue, collapsed or compressed against the target tissue when the primary fixation member is affixed to the target tissue. The electrostimulation electrode assembly can also include at least one electrode such as to contact heart or other excitable tissue such as to deliver chronic electrostimulation or sensing physiologic responses.

主权项

1. An implantable apparatus comprising:
an electrostimulation electrode assembly including:
a primary fixation member that is sized, shaped, or otherwise configured to be actively engaged or affixed to a target tissue of a patient;a secondary fixation member that is sized, shaped, or otherwise configured to bias against the target tissue when the primary fixation member is engaged or affixed to the target tissue; andan electrostimulation electrode body, including at least one electrode, that is sized, shaped, or otherwise configured to be attached to the primary fixation member and the secondary fixation member, and to deliver electrostimulation to a stimulation site of the patient via the at least one electrode.