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Adapter and method for measuring pressures of fluid materials

  • US 5,591,171 A
  • Filed: 05/15/1995
  • Issued: 01/07/1997
  • Est. Priority Date: 06/14/1991
  • Status: Expired due to Fees
First Claim
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1. Apparatus for measuring pressures of uncontaminated medical polymerizing materials while maintaining the uncontaminated state of such fluid materials comprising:

  • (a) a source of said uncontaminated medical polymerizing materials having a communicating orifice therein for communicating said fluid materials therewithin;

    (b) an adapter having a pair of opposed ends, and an internal passageway extending therethrough, from one end to the other end;

    (c) means for interconnecting said one end of said adapter with said communicating orifice, thereby to expose said one of said ends to said uncontaminated medical fluid materials;

    (d) an inflatable and expandable diaphragm means having an inner surface and an outer surface, said diaphragm means being affixed within said adapter for contacting said polymerizing materials with said inner surface, for preventing said polymerizing materials from traversing said internal passageway, and for defining a variable volume within said adapter, extending from said outer surface to said other end; and

    (e) pressure measuring means connected to said other end and closing said other end, thereby to enclose said variable volume, said pressure measuring means measuring pressure within said variable volume.

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