Complex sentence: He made the predecessor to the modern hemostat calling it the Bec de Corbin (crow's beak) (see image below) and with it he could clamp the bleeding vessel before securing it with a ligature.
Split into simpler sentences: He made the predecessor to the modern hemostat and called it the Bec de Corbin (crow's beak) (see image below). With it he could clamp a bleeding vessel before securing it with a ligature.