Cricothyrotomy needle

Claim 1

IN A CRICOTHYROTOMY NEEDLY A CURVED TUBULAR PART ADAPTED TO EXTEND INTO THE TRACHEA OF A PATIENT AND A UNITARY STILETTE PART REMOVABLY INSERTED IN SAID TUBULAR PART SAID STILETTE PART COMPRISING A MAIN SHAFT PORTION WITH AN ARCUATE AXIS APPROXIMATELY EQUAL IN LENGTH TO A QUADRANT OF A CIRCLE HAVING A RADIUS OF CURVATURE OF APPROXIMATELY 2 INCHES, SAID SHAFT HAVING AN ENLARGED INTEGRAL FORWARD END TERMINATING IN A SHARP POINT AND HANDLE MEANS AT THE OPPOSITE END, SAID TUBULAR PART COAXIALLY SURROUNDING THE SHAFT OF SAID STILETTE, THE AXIS OF SAID TUBULAR PART HAVING A CURVATURE SUBSTANTIALLY IDENTICAL WITH THAT OF SAID STILETTE PART AND A LENGTH SUCH THAT THE POINT OF THE STILETTE PROJECTS FROM THE FORWARD END OF THE TUBULAR PART WITH THE HANDLE OF THE STILETTE RESTING AGAINST THE SECOND END THEREOF, THE FORWARD END OF SAID TUBUALR PART COMPRISING AN INWARDLY BEVELLED RIM HAVING AN INTERNAL DIAMETER WHICH TIGTHLY FITS SAID ENLARGED FORWARD END OF THE SHAFT OF THE STILETTE, SAID TUBULAR PART COMPRISING PERMANENT SLIGHTLY INDENTED MARKING MEANS EXTENDING AROUND THE SAME APPROXIMATELY 1/2 INCH FROM SAID RIM, FLANGE MEANS SURROUNDING THE TUBULAR PART IN A PLANE SUBSTANTIALLY AT RIGHT ANGLES TO THE AXIS OF THE TUBULAR PART, SAID PLANE INTERSECTING THE AXIS OF SAID TUBULAR PART AT A POINT DISTANCE FROM SAID RIM BY A LENGTH APPROXIMATELY EQUAL TO THE LENGTH OF SAID QUADRANT, NOTCH MEANS ON SAID FLANGE MEANS TO INDICATE THE POSITION OF SAID TUBULAR PART IN THE TRACHEA OF A PATIENT.