A dental bur drill of the type including a tubular handpiece traversed by at least one conduit for delivering compressed air to a rotor which is mounted at an extreme end portion of said handpiece and to the bearing-mounted rotating shaft to which a bur is fitted, wherein the handpiece incorporates a lube-oil container provided with an injection nozzle protruding within a delivery conduit, which conduit communicates with the container at a point upstream of the nozzle.
A protective system for dentist chill units including a protective element and a sealing substance around the drill to prevent the entrance of undesirable matter such as the HIV (AIDS) virus into the handpiece holding the drill, which may, when the drill is replaced by another drill, infect the next patient, the system including an optional device including at least one valve for preventing undesirable matter such as the HIV virus from remaining in the water system after possible entry through one or more water nozzles in the handpiece, once the water is pumped out and possibly replaced by disinfectant, and then again with cooling water.
An inline oiler cartridge assembly for a pneumatically powered instrument includes a housing, a first conduit and a second conduit. The housing includes a lower portion removably attached to an upper portion. The lower portion defines an inner cavity and an outer cavity. A source of oil is disposed in the inner cavity. A dry fiber cellulose material is disposed in the outer cavity. The first conduit has a first end for attachment to a source of pressurized air and a second end for attachment to a pneumatically powered instrument. The first conduit passes through a portion of the upper portion of the housing and defines a channel for transmission of the source of pressurized air. The channel is in fluid communication with the inner cavity such that the source of pressurized air draws oil into an air stream for delivery to the pneumatically powered instrument.
