Yankauer Suction Device with Sleeve and Wiper

Abstract

A suction device includes an elongated suction tube having a suction tip at a distal end thereof, and a proximal end that is connectable to a suction source. A collar is slidable along the suction tube from a retracted position to a deployed position. A sleeve is provided having a proximal end fixed relative to the proximal end of the suction tube, and a distal end configured with the collar so as to move therewith and cover the suction tube in the deployed position of the collar. A wiper seal is contained within collar in sliding frictional engagement around the suction tube.

1 . A suction device, comprising:
 an elongated suction tube having a suction tip at a distal end thereof, said suction tube having a proximal end that is connectable to a suction source;   a collar slidable along said suction tube from a retracted position to a fully deployed position adjacent said distal end of said suction tube;   a sleeve having a proximal end fixed relative to said proximal end of said suction tube, and a distal end configured with said collar so as to move therewith, said deployed position of said collar defined at least in part by the length of said sleeve;   a wiper seal contained within said collar in sliding frictional engagement around said suction tube;   said collar having an open-ended cleaning chamber at a distal end thereof in which said suction tip resides in said fully deployed position of said collar; and   said wiper seal disposed within said collar so that in said fully deployed position of said collar, said wiper seal remains in engagement around said suction tube proximal to said suction tip such that said suction tip resides in said cleaning chamber and said wiper seal defines an end of said cleaning chamber in said fully deployed position of said collar.   
   
   
       2 . The suction device as in  claim 1 , wherein said open-ended cleaning chamber is defined by an elongated open-ended annular ring portion at a distal end of said collar. 
   
   
       3 . The suction device as in  claim 1 , wherein said suction tip comprises a cylindrical body. 
   
   
       4 . The suction device as in  claim 3 , wherein said cylindrical body comprises a diameter generally matching a diameter of said suction tube. 
   
   
       5 . The suction device as in  claim 1 , wherein said suction tip comprises a body having a diameter greater than said suction tube. 
   
   
       6 . The suction device as in  claim 5 , wherein said body comprises a rounded exterior surface. 
   
   
       7 . The suction device as in  claim 1 , further comprising a handle member at said proximal end of said suction tube, said handle member comprising a adapter for connecting said suction tube to a suction source, said proximal end of said sleeve fixed within said handle. 
   
   
       8 . The suction device as in  claim 7 , further comprising a storage attachment mechanism configured on said handle. 
   
   
       9 . The suction device as in  claim 8 , wherein said storage attachment mechanism comprises a clip sized to attach said device to the suction source. 
   
   
       10 . The suction device as in  claim 7 , wherein said sleeve is contained with a storage recess in said handle in said retracted position of said collar. 
   
   
       11 . The suction device as in  claim 1 , wherein said sleeve is contained within a storage recess in said collar in said retracted position of said collar.