with reference to fig1 and 2 , an endotracheal system 10 is provided and comprised of an endotracheal tube 12 and an endotracheal tube adaptor 14 . additionally , system 10 is comprised of a collar 16 and a ring 18 . a first end 20 of adaptor 14 is slidably receivable in a first end 22 of tube 12 to form a telescoping connection , more commonly known as a male - female connection . first end 20 of adaptor 14 is held in position by friction between the inner surface 24 of tube 12 and the outer surface 26 of adaptor 14 . although tube 12 and adaptor 14 are held in position by friction , it is fairly simple for tube 12 and adaptor 14 to slide apart and become completely disengaged during a medical procedure . often , the adaptor 14 falls onto the ground or onto the operating table ( not shown ) when disengagement occurs and cannot be found , making reengagement of adaptor 14 and tube 12 impossible . disengagement of tube 12 and adaptor 14 is dangerous since adaptor 14 is in turn , typically connected to the patient &# 39 ; s gas or anesthesia source 28 . thus , if tube 12 and adaptor 14 become disconnected from one another , oxygen and / or anesthesia will , in turn , become disconnected from the patient . similarly , if tube 12 is being used to suction the lungs of a patient and becomes disconnected from adaptor 14 , the well being of the patient will be at risk . it is therefore critical that source 28 not become disconnected from system 10 while endotracheal tube 12 is within the trachea of the patient . collar 16 and ring 18 prevent such disengagement of endotracheal tube 12 from adaptor 14 and source 28 . collar 16 is adapted to slide over tube 12 and adaptor 14 . collar 16 has a winged member 30 at a first end 32 of collar 16 that succinctly abuts winged member 34 of adaptor 14 . second end 36 of collar 16 is pronged , generally having at least two and preferably three or more prongs 38 . additionally , collar 16 is threaded on its exterior surface 40 as shown by threads 42 particularly in fig2 . once collar 16 is positioned around adaptor 14 and tube 12 , ring 18 can be assembled with system 10 . ring 18 has threads 44 on its interior surface 46 . additionally , ring 18 is advantageously tapered . ring 18 is slid over tube 12 and engages with collar 16 . threads 44 of ring 18 cooperatively engage with threads 42 of collar 16 such that ring 18 is screwed onto collar 16 like a nut being screwed onto a bolt . ring 18 , however , is tapered to prevent ring 18 from being screwed completely up collar 16 . as ring 18 engages with collar 16 via threads 42 , 44 , tapered end 48 of ring 18 pushes prongs 38 of collar 16 inward against tube 12 . tube 12 thus becomes sandwiched between prongs 38 of collar 16 and first end 20 of adaptor 14 located within first end 22 of tube 12 . as ring 18 is screwed upward as in direction of arrow 50 around collar 16 , prongs 38 are pushed more tightly against tube 12 such that it becomes impossible for tube 12 to disconnect from adaptor 14 . thus , the risk of source 28 becoming disconnected from system 10 is significantly reduced , if not eliminated . to facilitate securing ring 18 to collar 16 , flanges 52 are located around the exterior surface 54 of ring 18 . flanges 52 extend generally perpendicularly from exterior surface 54 of ring 18 to provide a user with an effective manner of grasping and twisting ring 18 for threading onto collar 16 . additionally , finger depressions 56 may be located on the exterior surface 54 of ring 18 to further facilitate grasping and twisting of ring 18 . based on the foregoing description , it will be appreciated that the collar 16 and ring 18 of the present invention provide the ability to easily and securely connect a source 28 to an endotracheal tube 12 via an adaptor 14 . it is quick and easy to screw the ring 18 to the collar 16 thereby securing the tube 12 to the adaptor 14 and source 28 . as it is quick and easy to screw the ring 18 to the collar 16 , it is just as easy to unscrew the ring 18 from the collar 16 to disconnect the tube 12 from the adaptor 14 and source 28 . from the above description of the general principles of the present invention and the preceding detailed description of a preferred embodiment , those skilled in the art will readily comprehend the various modifications to which the present invention is susceptible without departing from the scope of the present invention .
a device to facilitate securing an endotracheal tube to an adaptor connected to a suction or gas source is disclosed . the device is comprised of a collar slidable over an endotracheal tube and adaptor . the collar has a prong for engaging the endotracheal tube . the device is further comprised of a ring for temporarily locking to the collar and forcing the collar prong into fastening engagement with the tube .