Stethoscope with identifying-personalizing ring

A medical stethoscope head comprising:

• a body;
• an inlet pipe extending from said body and having an axis;
• a diaphragm cup having an upper surface, a lower surface opposite to said upper surface and being removably secured to said body for allowing an exchange of said diaphragm cup;
• a diaphragm held at said lower surface of said diaphragm cup by a fastening ring;
• said stethoscope head further comprising:
• at least one personalizing-identifying ring for distinguishing and identifying a stethoscope;
• said personalizing-identifying ring having an upper surface, a lower surface, an outer side surface, an inner side surface and said personalizing-identifying ring located with its lower surface on said upper surface of said diaphragm cup;
• the lower surface of said personalizing-identifying ring being provided with at least one locating element for explicitly locating said personalizing-identifying ring on said diaphragm cup;
• means for locating and connecting said diaphragm cup to said body provided in said diaphragm cup and in said body and cooperating with each other for removably securing said diaphragm cup to said body in preset angular position in relation to said axis of said inlet pipe;
• distinguishing means for personalizing and identifying the stethoscope provided on said upper surface of said at least one personalizing-identifying ring for distinguishing and identifying a stethoscope.