The goal of this retrospective, single-arm is to evaluate the safety and performance of the easyEndo™ Powered Single Use Powered Endoscopic Staplers and Cartridges in thoracic surgery. The main question it aims to answer is the safety and performance of the staplers

Inclusion Criteria:

• Patients who underwent thoracic surgery (including lobectomy, segmentectomy, wedge resection, etc.) using easyEndo™ Powered Single-Use Powered Endoscopic Staplers and Cartridges at our hospital.
• Surgery date was on or after January 1, 2024.
• Patients with complete medical records (including demographic data, surgical details, perioperative management, and follow-up information).
• Patients who completed a 1-year postoperative follow-up, with available and valid follow-up data

Exclusion Criteria:

• Patients who used other brands or types of endoscopic staplers instead of easyEndo™ Powered Single-Use Powered Endoscopic Staplers and Cartridges during surgery.
• Surgery date was before January 1, 2024.
• Patients with incomplete medical records or missing key information (e.g., unclear surgical procedures, unrecorded stapler use details, lost to follow-up before 1 year).
• Patients with severe underlying diseases that may affect postoperative outcomes or follow-up, such as end-stage heart, liver, or kidney disease, severe coagulation disorders, or uncontrolled malignant tumors (other than the primary disease requiring thoracic surgery).
• Patients with allergies to the materials of easyEndo™ staplers or cartridges, or who experienced adverse reactions related to stapler material allergies intraoperatively or postoperatively.