I want to check the cardiotonic activity of some plants. For screening of these plant I want some in vitro models (other than Langendorff's apparatus) which can be performed at laboratory scale.
@ Sachin are you talking about Langendorff's apparatus, in which heart is fixed whose apex in connected to pointer who is in contact with Rotating Drum?
If yes, then I have already performed same, if no, then can send the detail about the same technique!!!