Abstract: A stethoscope includes a flexible chest piece including a top surface, a bottom surface, a side surface defining a slope between the top surface and the bottom surface, and a groove extending along an inner circumference of the chest piece. A diaphragm is positioned within the groove.

Abstract: Aspects of the present disclosure relate to a method of making a one piece diaphragm. The method includes providing a tool die, providing a disc formed from a first material, positioning the disc within an injection mold, providing a second material; heating the second material. The method includes melt molding the second material into the tool die and around a peripheral edge of the disc to form the one piece diaphragm comprising a rim, and removing the one piece diaphragm from the injection mold.

Abstract: The present invention is a diaphragm including a disc formed from a first material and a rim formed from a second material. The disc and the rim are a unitary piece. The rim has a Shore A durometer hardness of between about 40 and 110.

Abstract: The present invention is a stethoscope diaphragm including a disc and a rim. The rim includes a plurality of features extending from an inner circumference of the rim.

Abstract: The present invention is a diaphragm including a disc formed from a first material and a rim formed from a second material. The disc and the rim are a unitary piece. The rim has a Shore A durometer hardness of between about 40 and 110.

Abstract: A stethoscope includes a flexible chest piece including a top surface, a bottom surface, a side surface defining a slope between the top surface and the bottom surface, and a groove extending along an inner circumference of the chest piece. A diaphragm is positioned within the groove.

Abstract: The present invention is a stethoscope diaphragm including a disc and a rim. The rim includes a plurality of features extending from an inner circumference of the rim.

Abstract: System for releasably retaining portions of a data cartridge shell in an assembled configuration including at least one first boss tower on a first portion of the data cartridge shell having a receiving hole with an inner surface. At least one second boss tower on a second portion of the data cartridge shell including an outer surface is adapted to releasably engage with the receiving hole at a boss tower interface in the assembled configuration. A plurality of retention ribs and a plurality of guide ribs are located at the boss tower interface to releasably retain the first portion of the cartridge shell to the second portion.