Medical body function recorder

Claim 1

IN A RESPIRATORY RATE MEASURING APPARATUS: A RECTAL PROBE INCLUDING A SEALED TUBULAR CONDUIT STRUCTURE, A SOURCE OF PNEUMATIC PRESSURE CONNECTED TO SAID CONDUIT STRUCTURE OF SAID PROBE AND INCLUDING A HAND PUMP AND A RESERVOIR, A DETECTION MEMBER HAVING A TUBULAR PASSAGE THEREIN INCLUDED IN SAID CONDUIT STRUCTURE, A TRACK INCLUDED IN SAID PASSAGE HAVING STOP MEANS AT THE EXTREMITIES THEREOF, AN OPAQUE BALL POSITIONED IN SAID TRACK BEING ADAPTED TO ROLL FREELY THEREIN BETWEEN SAID STOP MEANS, A PAIR OF PASSAGES POSITIONED IN SAID DETECTOR MEMBER EXTENDING TRANSVERSELY OF SAID TUBULAR PASSAGE AND CONNECTED THERETO BEING LOCATED INTERMEDIATE THE STOP MEANS AT THE EXTREMITIES OF SAID TRACK, A PAIR OF LIGHT SOURCES POSITIONED IN SAID LAST NAMED PASSAGES IN SAID DETECTOR MEMBER TO ONE SIDE OF SAID TUBULAR PASSAGE, PHOTOCELL DETECTING MEANS BEING POSITIONED IN SAID PASSAGES AT THE OPPOSITE SIDE OF THE SAID TUBULAR PASSAGE, SAID LIGHT SOURCES AND SAID PHOTOCELLS BEING SEALED IN SAID DETECTOR MEMBER TO SEAL SAID TUBULAR PASSAGE AND BEING SO ALIGNED THAT THE LIGHT FROM SAID SOURCES IS ADAPTED TO NORMALLY FALL ON SAID PHOTOCELLS EXCEPT WHEN SAID BALL IN SAID PASSAGE IS POSITIONED ADJACENT SAID TRANSVERSELY EXTENDING PASSAGES, FLIP-FLOP SWITCHING CIRCUIT MEANS CONNECTED TO SAID PHOTOCELLS AND ADAPTED TO RESPOND TO THE OUTPUT OF THE SAME, AND COUNTING MEANS CONNECTED TO SAID SWITCHING MEANS AND OPERATED IN RESPONSE TO VARIATION IN OUTPUT OF SAID PHOTOCELLS AS SAID BALL INTERRUPTS THE LIGHT FROM SAID SOURCES.