Event-Level Detection of Surgical Instrument Handovers in Videos with Interpretable Vision Models. - Katerina Katsarou; George Zountsas; Karam Tomotaki-Dawoud; Alexander Ehrenhoefer; Paul Chojecki; David Przewozny; Igor Maximilian Sauer; Amira Mouakher; Sebastian Bosse (CoRR, 2026)