Mammalian coronary perfusion--an improved laboratory device.

An improvised device for coronary perfusion of isolated rat heart consisted of a reservoir of buffer pressurised with continuous bubbling of O2 connected to two double condensors in series. The outer jacket of each condenser was connected to a temperature controlled motorised water bath to ensure steady temperature of buffer. Isolated hearts could be tested with known agents directly through a syringe connected to the aortic cannula.