Patent ID: 6847720
Filing Date: 2005-01-25
Classification: A61B,G09F

Abstract:
1. A quick-updating stethoscope receiver comprising: a receiver; a listening disk at a lower end of the receiver; wherein the listening disk can be embedded into a lower end of the receiver; an upper cover at a top end of the receiver; and a transducer combining at a lateral wall of the receiver and a connector at a rear end of the transducer; characterized in that: a lower end of the receiver has an axial extended shaft; the shaft is formed with an annular trench; an elastic tightening ring is embedded into the trench; the tightening ring is made of rubber material and a diameter of a cross section of the tightening ring is larger than a depth at the trench so that part of the tightening ring protrudes out of the trench; the listening disk includes a staged round disk and a plastic film at a bottom of the round disk; a center of the round disk has an opening; when the shaft at a lower end of the receiver inserts into the opening, an axial surface of the shaft is in surface-contact with the inner wall and the elastic tightening ring is compressed by an inner wall of the opening so as to induce a friction resisting force; by the elastic expanding force of the tightening ring, the round disk is tightly engaged to the shaft so that the round disk can not drop out.