OBJECTIVETo analyze the content of tanshinone IIA in Radix Salviae Miltiorrhizae from different habitats are regularly altered and find out the deviation between the studies.

METHODThe data of the content of tanshinone IIA in samples of Radix Salviae Miltiorrhizae from different areas and related information since 1997 was collected and statistically analyzed.

RESULT AND CONCLUSIONThe content of tanshinone IIA in wild Salvia was generally higher than that in the cultivated Salvia, and the content in nearly half cultivated Salvia was less than 0.2%. There existed a big difference between the used statistical model, and the data related the content in samples from Sichuan was the most divisive. The coefficient of variation of wild Salvia was below the cultivated Salvia, and the cultivated Salvia from different areas showed different coefficients of variation. The content of tanshinone IIA was lower when samples were extracted using the heating reflux method.

Diterpenes, Abietane ; Phenanthrenes ; analysis ; Salvia miltiorrhiza ; chemistry

At present, there still exist some limitations in the laparoscopic surgery robot represented by da Vinci surgical robot, such as the lack of force feedback function. Doctor can not feel the force feedback while operating. In this paper, a new minimally invasive laparoscopic surgery robot system is designed. Based on the master side surgeon's console, stereo vision subsystem and the slave side surgical cart, the multi-dimensional instrument force feedback technology and force feedback based safety protection strategy are introduced. The design realizes the force sensing function of full state operation. Besides, a number of different live pig experiments are carried out. The amount of bleeding in these experiments is relatively small compared with the data of the same kind of surgical robots, which effectively validates the force feedback and surgical safety protection strategies of the new robot system.
Animals ; Equipment Design ; Laparoscopy ; instrumentation ; Minimally Invasive Surgical Procedures ; Robotic Surgical Procedures ; instrumentation ; Robotics ; Swine