Diagnostic apparatus for medical purposes; apparatus for use in medical analysis; medical apparatus and instruments; surgical apparatus and instruments; brain pacemakers; heart pacemakers; testing apparatus for medical purposes; electrodes for medical use; heart rate monitoring apparatus; artificial surgical implants; inflation devices for balloon catheters; balloon catheters; heart rate monitor; heartbeat measuring equipment; intracardiac catheters; electrodes for external defibrillator; defibrillators; medical apparatus and instruments relating to neurovegetative reactivity; cardiac defibrillation electrodes; wearable monitors used to measure biometric data for medical use; dental apparatus and instruments; dynamic electrocardiogram monitors; cushions for medical purposes; babies' bottles; condoms; implants (artificial materials); cardiac valves for surgical prostheses; artificial cardiac valves; surgical implants comprised of artificial materials; orthopaedic articles; suture materials.