Patent ID: 8733495

Claim:
A stethoscope earplug seat, comprising: a large tubular body having a first end and a second end opposite to each other, and defined by a first inner radius, a first outer radius and a first length; and a small tubular body having a third end and a fourth end opposite to each other, and defined by a second inner radius, a second outer radius, and a second length, wherein the large tubular body sheaths the small tubular body, and the first inner radius is equal to the second outer radius; wherein the first length is smaller than the second length, the first end is located between the third end and the fourth end, and a second side surface of the second end is leveled with a fourth side surface of the fourth end; wherein a first side surface and a first inner surface of the first end are concavely formed with a first annular slot, the first annular slot is defined by a third inner radius and a third outer radius, the third inner radius is equal to the first inner radius, and the third outer radius is smaller than the first outer radius; and wherein a part of an outer surface of the small tubular body adjacent to the third end is concavely formed with a second annular slot, and the second annular slot has a fourth inner radius greater than the second inner radius and smaller than the second outer surface.