SIMPLIFIED EXTERNAL FIELD ELECTROMAGNETIC CATHETER FLOW METER

摘要

An electromagnetic catheter-type flow meter is provided which may be introduced, for example, into a blood vessel to measure the blood flow in the blood vessel, and which is constructed to have a minimal diameter so that it may be introduced percutaneously, for example, into a branch of a larger blood vessel with minimum damage. The flow meter of the invention is angulated so as to place its pick-up electrodes adjacent the inner surface of the wall of the blood vessel diagonally or diametrically across the blood vessel from one another; or the catheter may be rigid and straight, and/or pointed as a needle, so that it may be introduced transversely into a blood vessel through a branch vessel or through the wall thereof.