Beijing Chaoyang Hospital Affiliated to Capital Medical University Yue Yun Wu Di Wu Anshi Rui Yan et al 　　 Clinical trial method (including the setting of control group if necessary): 　　 The purpose of this test is to compare with common clinical methods to verify the safety and effectiveness of the adjustable disposable continuous injector in clinical general intravenous anesthesia and epidural anesthesia. The subject was an elective surgical patient who was planned to undergo intravenous general anesthesia and epidural anesthesia in Beijing Chaoyang Hospital. 　　 1. General anesthesia plan: 　　 This trial is a prospective, randomized, controlled clinical verification. The subject was a patient who was scheduled to undergo elective surgery and required intravenous general anesthesia in Beijing Chaoyang Hospital, Capital Medical University. Routinely monitor patients' non-invasive blood pressure (systolic and diastolic blood pressure, SBP, DBP), electrocardiogram (heart rate, HR), pulse oxygen saturation (SpO2) and BIS value. All patients underwent rapid induction endotracheal intubation and intravenous administration of midazolam 0.03-0.04mg/kg, propofol 1-2mg/kg, rocuronium 0.8-1.0mg/kg, sufentanil 0.2ug/kg , Followed by endotracheal intubation, mechanical ventilation with an anesthesia machine, continuous intravenous pumping of propofol and remifentanil, intermittent addition of actosone or propofol, and adjustment of the anesthetic infusion speed according to blood pressure, heart rate, and BIS value , Maintain a proper depth of anesthesia, and maintain the BIS value at 40-60. Both groups of remifentanil were pumped by Grasby3500; the control group propofol was pumped by Grasby3500 continuously, and the test group propofol was pumped by SHI3-50-10/25/35 adjustable disposable continuous injector continuous pump Into. At the last stitch of the surgical stitch, the pumping of propofol and remifentanil was stopped, and the patient's recovery time was observed. The changes in blood pressure, heart rate, SpO2 and BIS values at various points before and during the anesthesia induction and the patient's recovery time after the operation were recorded. Record whether ephedrine was used during the operation and its dosage and frequency, and whether to add propofol and its dosage and frequency in a single time. 　　2, epidural anesthesia The patients who were planned to undergo elective surgery with epidural anesthesia in Beijing Chaoyang Hospital affiliated to Capital Medical University were selected and randomly divided into the experimental group: adjustable disposable continuous injector SHI3-50-4/6/10 group and control group : Routine intermittent administration group. Anesthesia: The patient enters the operating room, opens the peripheral vein, and routinely monitors non-invasive blood pressure, electrocardiogram, and pulse oxygen saturation. The lumbar puncture between 1 and 2 was performed, and a tube was placed in the epidural space. 2% lidocaine 4ml was used as the test amount to exclude general spinal anesthesia, and the post-preload amount (2% lidocaine 8-10ml). The experimental group used an adjustable disposable continuous infusion device SHI3-50-4/6/10 continuous epidural pumping local anesthetics, and the control group was administered intermittently in the epidural space according to routine operations. If the effect of anesthesia is incomplete, add local anesthetic through the epidural space. Record the patient's basic non-invasive blood pressure, electrocardiogram, pulse oximetry value and changes in blood pressure, heart rate, SpO2 at each observation point during the operation, record the anesthesia level, and evaluate the anesthesia effect at the end of the operation. Record whether ephedrine was used during the operation and the dosage and frequency, and whether to add 2% lidocaine in a single time and the additional dosage and frequency. The anesthesia effect was evaluated according to the muscle relaxation and analgesic effect. 　　 Statistical methods and evaluation methods used: 　　 Data statistical processing uses SPSS11.5 software, measurement data uses t-test method, uses two-sided test, count data uses chi-square analysis, P value less than or equal to 0.05 is considered to be statistically significant. 　　 Statistical analysis content: 　　(1) Basic data and completion status of the enrolled cases. 　　(2) The patient's vital signs during the perioperative period. 　　(3) The patient's perioperative BIS status and recovery time. 　　(1) The nerve block level of the patient's anesthesia. 　　(2) Evaluation of anesthesia effect. 　　(3) The patient's administration of other drugs during the operation. 　　(7) An adverse event occurred. 　　 Clinical evaluation criteria: 　　一 Effectiveness evaluation: 　　 1. Compared with the control group, there is no statistical difference in meeting the clinical anesthesia effect index. 　　2. The evaluation criteria for patients with general anesthesia