Patent ID: 6575946
Filing Date: 2003-06-10
Classification: A61M

Abstract:
A hand-activated vacuum pump providing vacuum pressure for an aspirating device comprising a cylindrical container having an inner surface bounding an aspirating fluid reservoir, a cap for said container having in a laterally attached extending relation therefrom a fluid air mixture intake into said reservoir for releasing from said fluid air mixture the fluid content thereof and continuing the flow of said air content thereof into an exit conduit in a laterally attached extending relation also from said cap, a cylindrical flow-control member in depending attached relation from said cap and in an operative interposed position between said intake and said exit conduit, said cylindrical flow-control member being of a construction material that varies in porosity in response to fluid contact being made therewith and said cylindrical flow-control member in said operative interposed position having an outer surface in facing relation to said inner surface of said cylindrical container and said outer and inner surfaces respectively of said flow-control member and said cylindrical container bounding therebetween a flow path between said intake and exit conduit, and a cylindrical hollow baffle mounted in depending relation from said cap and in encircling relation about said flow-control member, said cylindrical hollow baffle having an inner surface in facing relation to said outer surface of said flow-control member and said inner and outer surfaces respectively of said baffle and said flow-control member bounding therebetween a splash-inhibiting compartment subdividing said flow path between said intake and exit conduit characterized by a width selected to obviate any fluid splashing phenomenon therein, whereby angular positions and lateral/vertical movements of said aspirating device during use do not result in fluid contact with said flow-control member of an extent as might occur in an unfilled but progressively filling reservoir without a subdivided flow path.