Abstract: A manual toy of navigation of oval and round shape rings. The procedure of navigation is performed by a navigator of maneuvering rotation of toy handle. Oval or round shape rings will rotate around a sealed designed shape hoop Connected to handle of toy. In a skillful operated manner of navigation of a navigator using skill tactics of navigating movements. A child will and can experience a wonderful movement of rhythm in multiple positions and angles. Transition of child navigation system to an adult navigation system of health building exercise unit for aerobic. A human body health building ability of navigation is rotation tactics of maneuvering of oval or round shape rings. An adult human body will experience building of oxygen rhythm muscles and bicep muscles. From maneuvering rotation tactics of navigation unit system.

Abstract: A disposable oral suction tip includes a tubular body having a suction line attachment end, a mouthpiece end, an exterior surface and at least one central passage that extends between the suction line attachment end and the mouthpiece end. A mouthpiece is secured to the mouthpiece end of the tubular body. At least one vacuum release channel is provided having a first end and a second end. The at least one vacuum release channel extends along the exterior surface of the tubular body. The first end of the at least one vacuum release channel is positioned to be placed into a patient's mouth along with the mouthpiece. The second end is spaced from the mouthpiece such that the at least one vacuum release channel provides direct venting of the oral cavity.

Abstract: An oral suction tip is described which includes a tubular body. The tubular body has a peripheral sidewall, a first end, a second end, and a single passage for transmitting fluids extending between the first end and the second end. A mouthpiece is provided at the second end of the tubular body. At least one vacuum release aperture extends through the sidewall of the tubular body in direct communication with the fluid passage. The at least one vacuum release aperture is spaced from the mouthpiece, such that when the mouthpiece is inserted into a patient's mouth the at least one vacuum release aperture is not confined within the patient's mouth. A porous guard overlies in spaced relation the at least one vacuum release aperture. This prevents accidental blockage of the at least one vacuum release aperture and also prevents regulation of the suction by means of the at least one vacuum release aperture.

Abstract: A method of preventing a back flow of oral contaminants in a low volume suction line of a dental saliva ejector is described. This method consists of the single step of placing a vacuum release aperture through a tubular sidewall of a saliva ejector tip. The aperture is spaced from a mouthpiece of the saliva ejector tip such that when the mouthpiece is inserted into a patient's mouth, the patient's mouth will not block the aperture.