Single Port Robotic Lung Anatomical Resection

Inclusion Criteria: 1. Age \>20 and \<75 years-old 2. Willing and able to provide informed consent 3. ASA≤ 3 4. The subject is undergoing the following procedures 1. diagnosis with of clinical stage I lung cancer 2. The primary tumor should be less than ≤4cm diameter and ≥ 2 cm away from the origin of the associated lobar bronchus 5. Preoperative platelet count 150-400 (1000/ uL) Exclusion Criteria: 1. Congestive heart failure (NHYA \> II) 2. Subjects with a known bleeding or clotting disorder 3. Subjects actively receiving therapeutic dose anticoagulation or anti-platelet medications at the time of operation 4. Subjects under immunomodulatory or immunosuppressive regimen (e.g. transplant patient, steroid requirement) within 30 days prior to the planned surgery 5. Subjects with pulmonary hypertension 6. In need of extended resection (e.g. Chest wall, Carina, major vessel, bilobectomy) and reconstruction (e.g. Sleeve resection, bronchoplasty, angioplasty) 7. Previous ipsilateral thoracic surgery or sternotomy 8. Uncontrolled illness 6 months prior to planned surgical procedure including, but not limited to ongoing or active infection, symptomatic congestive heart failure, unstable angina pectoris, cardiac arrhythmia, or psychiatric illness/social situations that would limit compliance with study requirements 9. Previous neoadjuvant medical and/or radiation therapy 10. Subject has a contraindication for general anesthesia or surgery 11. Life expectancy \< 6 months 12. Anatomy determined intra-operatively to be unsuitable for minimally invasive surgery 13. Subjects belong to vulnerable population (e.g., pregnancy or breastfeeding) 14. International normalized ratio, INR \>1.4 15. Activated Partial Thromboplastin Time , APTT \>35 -