Catheters; Defibrillators; Cardiac defibrillation electrodes; Cardiac electrodes; Catheters for use in embolectomy; Catheters for use in ablation; Electrodes for medical use; Heart pacemakers; High frequency electromagnetic therapy apparatus; Intracardiac catheter; Medical and surgical catheters; Medical devices, namely, pulse generators for neurostimulation, cardiac rhythm management, muscle stimulation; Medical guidewires; Medical instruments to measure blood pressure, cardiac output and other physiological and cardiovascular parameters; Medicinal catheters; Surgical apparatus and instruments for medical use; Surgical instruments and apparatus