Multiple-core, multiple-screen strap-type connecting cable, particularly for electrocardiographs or for other measuring instruments

A connecting cable for electrical instruments comprising a multiple-core strap formed by a plurality of single-core leads which are flexible and have substantially identical characteristics, each said leads being provided with a screen, and being disposed in a common plane adjacent to each other, in substantially mutual contact, said leads further being provided with an insulating sheath and being interconnected by at least one longitudinal continuous web made of the same material as that forming the external insulating sheath of the leads, said strap including, at one end thereof, a terminal with a connector for removable connection to a corresponding socket of an electrical instrument, said connector having incorporated therein protective means for providing protection for the electrical instrument, said strap including at first and second intermediate points therealong separate leads which branch off to form peripheral branches and precordial branches, and said strap further including at said first and second intermediate points first and second corresponding flat clamps which ensure that sections of said strap on the side of the said clamps closest to the electrical instrument remain in a fixed combined state, individual separate leads branching off from the clamps being cut to a required length and being connected with the free ends thereof to a corresponding connection means for providing rapid and removable connection to the measuring electrodes.