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Medication delivery apparatus and system having a visual indicator

  • US 7,201,165 B2
  • Filed: 05/17/2005
  • Issued: 04/10/2007
  • Est. Priority Date: 05/21/2002
  • Status: Active Grant
First Claim
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1. A flow indicating system comprising:

  • a conduit adapted to contain a substance, wherein said conduit defines a flow path along which the substance is adapted to primarily flow;

    a viewing port connected to said conduit, wherein said viewing port allows visualization of an internal space defined at least in part by said viewing port; and

    a flow indicator positioned within and visible through said viewing port, said flow indicator hingedly supported relative to said conduit, wherein said flow indicator is pivotable about a hinge axis in a first direction from an at rest position to an inhalation position in response to an inhalation pressure applied thereto, wherein said flow indicator is pivotable about said hinge axis in a second direction in response to an absence of the inhalation pressure being applied thereto, and wherein said second direction is opposite said first direction.

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