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Method and apparatus to indicate prior use of a medical item

  • US 8,636,691 B2
  • Filed: 05/10/2010
  • Issued: 01/28/2014
  • Est. Priority Date: 10/27/2005
  • Status: Active Grant
First Claim
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1. An apparatus for notifying a user of a prior injection within a medical item including a receptacle containing a medical fluid, said apparatus comprising:

  • a port to receive an injection of a substance for said medical item, wherein said port includes a membrane and a tubular member extending from said membrane with a passage defined therethrough for fluid communication with said receptacle, and wherein said membrane is penetrable by an instrument to receive said instrument within said passage for said injection of said substance; and

    an indicator disposed within said passage and triggered by direct contact with said instrument to indicate occurrence of said injection, wherein said indicator alters an appearance of at least one of said indicator and said medical fluid to indicate occurrence of said injection.

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