Importance

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Abstract

A connector is provided to connect a medical/dental instrument to a supply hose carrying air, water, and light from a control unit. The connector includes a first portion which is rotatably received in a second portion. The first portion includes a body and a nose extending from the body. The connector includes air and water passages and a light tube passage which are operably connectable to the sources of air, water, and light through a supply hose. The nose has a generally smooth uninterrupted surface. The operating air and water passages exit on the side of the nose, and the light tube passage and chip air passage exit at the end of the nose. The connector first portion can be used by itself to support an instrument which, for example, need only the light, or in association with the second portion. The connector second portion is located in the back of a tool body. The connector second portion includes a central passage way having inner annular channels which are positioned to be in communication with the air and water exits of the connector first portion. The connector second portion also has a central opening through which the light tube extends to deliver light to the front of the tool. The connector second portion includes three internal O-rings to isolate the annular channels from each other when the first portion is received in the second portion.

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First Claim