Application of 3D Printing Technique in Radical Gastrectomy With Leonardo da Vinci Robot

The incidence of gastric cancer is the highest in China, and surgery is one of the most effective treatment methods. Da Vinci robot radical gastrectomy for gastric cancer has the advantage of minimally invasive and fine operation. However, due to complicated perigastric anatomy, abundant blood supply and wide distribution of lymph nodes, it is widely used in clinical use of .Combine the 3D printing technique with imaging examination (digestive endoscopy,3Dct cta/ctv, etc.) ,making the 3D model of da Vinci robot assisted radical gastrectomy can fully show the anatomical relationship around gastric cancer, determine the flow and variation of splenic portal vessels, and the distribution of splenic hilar lymph nodes. In order to eliminate the imagination difference of spatial anatomical structure before operation, it is easier for surgeons to optimize the operation plan, to control the operation process and to improve the accuracy, and to adopt individualized operation suitable for the patients.

Sex

All

Inclusion Criteria:

* Patients without contraindications gastroscope，surgery and anesthesia;
* There is no history of abdominal surgery, no severe abdominal cavity adhesion;
* Not found the tumor metastasis;
* Normal coagulation function;
* There is no history of anticoagulant drugs, or who take aspirin, salvia miltiorrhiza, etc., should stop taking drugs for more than one week;
* Patients and their families volunteered choice the surgical procedure and signed informed consent.

Exclusion Criteria:

* Patients with preoperative assessment of distant metastasis;
* Patients with preoperative radiation and chemotherapy or hormone therapy;
* Patients with acute obstruction, bleeding or perforation of the emergency surgery;
* Patients with a history of abdominal trauma or abdominal surgery;
* Patients with contraindications gastroscope，surgery and anesthesia.