To evaluate whether the anastomosis success rate of the main effectiveness evaluation indexes is not inferior to the similar products produced by Johnson & Johnson when the Fengh Disposable Powered Articulating Endoscopic Linear Cutter Stapler Used for Thoracoscopic Anatomic Lobectomy (segmentectomy)

By comparing the effectiveness and safety of the disposable electric-endoscopic linear cutter stapler and cartridge (the subject product) produced by Jiangsu Fengh Medical Co., Ltd. and the similar product (electric-endoscopic linear cutter stapler with articulating head) produced by Johnson & Johnson in total-thoracoscopic anatomic lobectomy (segmentectomy), to prove that the subject product can be used for pulmonary tissue resection and anastomosis, and that the clinical trial meets the requirements of Good Clinical Practice for Medical Devices, Guidelines for Clinical Trial Design of Medical Devices and Guidelines for Technical Review of Endoscopic Stapler Registration, which can be used for product registration application.

Inclusion Criteria:

1. Subjects aged 18-70 (inclusive), with no gender limitation;
2. The subject plans to undergo thoracoscopic anatomic pulmonary lobectomy (pulmonary segment);
3. Subjects or their guardians can understand the purpose of the study, show sufficient compliance with the study protocol, and sign the informed consent.

Exclusion Criteria:

1. Subjects have contraindications of video-assisted thoracoscopy;
2. The preoperative imaging results of the subjects indicated the presence of severe pleural adhesion and significant calcified hilar lymph nodes;
3. Subjects' platelet (PLT) <60x 10%/L or INR > 1.5;
4. Subjects forced expiratory volume in 1 second (FEV1)/expected value ≤50%, or forced expiratory volume in 1 second (FEV1)/use Vital capacity (FVC)≤60%;
5. Cardiac ejection fraction ≤50%;
6. Major organ failure or other serious diseases (including clinically relevant cardiovascular diseases or within 12 months prior to enrollment) Myocardial infarction; A history of severe neurological or psychiatric illness; The presence of a serious infection before surgery that must be controlled with medication; Dissemination of activity Sexual intravascular coagulation; At high risk of blood clots);
7. The subject is a pregnant or lactating woman;
8. The subject participated in clinical trials of other drugs or devices within 1 month prior to the trial;
9. Other conditions that the researcher judged inappropriate for inclusion. .

Only the results of CT, routine blood test, coagulation function, fasting blood glucose, occult blood test of stool, cardiac ultrasound, lung function and digestive tract angiography were available to the participants, and other results were not shared