Catheters; Probes for medical purposes; Medical apparatus and instruments for treating cardiovascular disease; [ Cardiac electrodes; ] Medical instrument for cardiovascular diagnostics; Medical apparatus for diagnosing suspected heart attacks;[ Ultrasonic medical diagnostic apparatus; Medical apparatus and instruments, namely, a handheld ultrasound unit for cardiac diagnosis, screening and cardiovascular patient follow-up; ] Medical guidewires; [ Heart pacemakers; ] Trocars; Blood testing app...