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US 2010/0249753 A1Published application
Vented syringe system and method for the containment, mixing and ejection of wetted particulate material
OwnerDavid M. Gaisser, Srinivas Kattainventors
Life of this patent
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Abstract
A vented syringe system and method for particulate containment, mixing and delivery, the system having a vented syringe containing particulate material structured to enable entrapped gases to escape during the injection of liquid into the particulate material, such that gas is removed from the vented syringe prior to ejection of the wetted particulate material.
Claims14
A wetted particulate containment and mixing vented syringe system comprising the combination of:
- a vented syringe having a distal end and a proximal end, said vented syringe comprising a barrel, a plunger having a plunger seal disposed within said barrel, and at least one vent hole positioned on said barrel near said proximal end of said vented syringe, whereby said plunger is movable relative to said barrel such that said plunger seal resides either distally or proximally to said at least one vent hole;
- particulate material disposed within said barrel of said vented syringe;
- and
- a wetting syringe temporarily mountable to said distal end of said vented syringe, said wetting syringe capable of expelling a liquid into said vented syringe.
1 more element
A system comprising the combination of:
- a vented syringe having a distal end and a proximal end, said vented syringe comprising a barrel, a plunger having a plunger seal disposed within said barrel, and at least one vent hole positioned on said barrel near said proximal end of said vented syringe, whereby said plunger is movable relative to said barrel such that said plunger seal resides either distally or proximally to said at least one vent hole;
- and
- a wetting syringe temporarily mountable to said distal end of said vented syringe, said wetting syringe capable of expelling a liquid into said vented syringe.
A method of mixing and ejecting a wetted particulate material comprising the steps of:
- providing a vented syringe having a distal end and a proximal end, said vented syringe comprising a barrel, a plunger having a plunger seal disposed within said barrel, and at least one vent hole positioned on said barrel near said proximal end of said vented syringe, whereby said plunger is movable relative to said barrel such that said plunger seal resides either distally or proximally to said at least one vent hole;
- inserting particulate material into said barrel of said vented syringe;
- providing a wetting syringe containing a liquid;
- temporarily connecting said wetting syringe to said distal end of said vented syringe;
- expelling said liquid from said wetting syringe into said barrel of said vented syringe to produce wetted particulate material, whereby said plunger seal is moved toward said proximal end of said vented syringe such that said plunger seal is positioned proximally to said at least one vent hole such that gas within said barrel of said vented syringe is expelled through said at least one vent hole;
- continuing to expel liquid from said wetting syringe into said barrel of said vented syringe until said liquid begins to pass through said at least one vent hole;
- disconnecting said wetting syringe from said vented syringe;
- and
- advancing said piston into said barrel of said vented syringe to eject said wetted particulate material from said vented syringe.
6 more elements
Dependencies are inferred from the claim text.