Clinical application of a vascular interventional robot in cerebral angiography.

Background: Cardiovascular and cerebrovascular diseases have become the leading cause of death for people, and endovascular surgery has become the main therapeutic method. Robot technology would overcome some limitations of conventional surgery, and has good prospects.

Methods: A total of 15 patients received cerebral angiography assisted by a vascular interventional robot following preoperative examination, with approval from the hospital ethics committee and informed consent by the patients' families.

[Experimental study of angiography using vascular interventional robot-2(VIR-2)].

Objective: To verify the feasibility and safety of new vascular interventional robot system used in vascular interventional procedures.

Methods: Vascular interventional robot type-2 (VIR-2) included master-slave parts of body propulsion system, image navigation systems and force feedback system, the catheter movement could achieve under automatic control and navigation, force feedback was integrated real-time, followed by in vitro pre-test in vascular model and cerebral angiography in dog. Surgeon controlled vascular interventional robot remotely, the catheter was inserted into the intended target, the catheter positioning error and the operation time would be evaluated.

Application study of medical robots in vascular intervention.

Background: Based on the background of minimally invasive surgery and applications of medical robots, a vascular interventional robotic system has been developed that can be used in the field of vascular intervention.

Methods: The robotic system comprises a propulsion system, an image navigation system and a virtual surgery training system. Integration of the three systems constitutes a vascular intervention prototype robotic system used to carry out in vitro vascular intervention and animal experiments.

[A study on the differences of emotion and depression between patients as doctor/nurse and others occupation with severe acute respiratory syndrome].

Objective: To study the emotional and depressive differences between severe acute respiratory syndrome (SARS) patients whose occupations were doctor/nurse and others.

Methods: During the three months when SARS was explosive in 2003, 524 questionnaires were collected from Xuanwu Hospital, You'an Hospital, Xiaotangshan Hospital, Renmin Hospital and Ditan Hospital in Beijing. There were 109 questionnaires finished by patients as doctors/nurses themselves.