Apparatus for emplacing viscous material in a cavity
AssigneeOptex Biomedical, Inc.
InventorJames R. Salter
Life of this patent
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Abstract
Apparatus are disclosed for introducing thick material into a small cavity, the apparatus in one aspect including a piston/cylinder device insertable into a block bore of a containment block, the block bore having the thick material therein for transfer to the piston bore, the piston then movable to expel the material from the piston bore into the cavity; in certain aspects the cavity of microscopic size and in other aspects thick material being a thixotropic chemical indicating material and the cavity extending through a fiber optic in a biosensor;
Claims9
In a system for installing an amount of a thick chemical indicator complex comprising liquid chemical indicating substance immobilized on solid particles in a microscopic cavity extending through a fiber optic in a biosensor, the cavity having a cavity volume, wherein the improvement comprising
- a block with a block bore therein for holding said thick chemical indicator complex,
- a material handling assembly having means for partially inserting said assembly into the block bore, the material handling assembly having a body with a body bore therethrough and a piston movably positioned in the body bore,
- the piston having means moving the piston for vacating a portion of the body bore so that upon insertion of the material handling assembly into the block bore an amount of the chemical indicator complex enters the vacated portion of the body bore, and
- the piston having means moving the piston for expelling the amount of the chemical indicator complex into the cavity at a pressure sufficiently low to prevent the liquid chemical indicating substance from separating from the solid particles.
Dependencies are inferred from the claim text.