Dental tool and nozzle therefor

  • US 4,984,984 A
  • Filed: 07/18/1988
  • Issued: 01/15/1991
  • Est. Priority Date: 07/18/1988
  • Status: Expired due to Term
First Claim
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1. A removable nozzle for the simultaneous discharge of first and second fluids through a distal end of the nozzle and for attachment to the hand piece of a dental tool comprising sources of the first and second fluids, the nozzle comprising:

  • first and second conduits having coaxial intake ports for fluid communication with the sources of the first and second fluids and coaxial discharge ports at the distal end of the nozzle for discharging the first and second fluids, the first conduit being contained at least partially within the second conduit and the conduits being bent to constrain the first conduit in the second conduit without bonding the conduits together, the discharge ports of the conduits being proximately located with respect to one another, andcoupling means for releasably coupling the nozzle to the hand piece,wherein upon coupling the nozzle to the hand piece the first conduit is automatically aligned with and connected to the source of the first fluid to enable quick connection and disconnection of the nozzle to the hand piece.

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