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Bi-directional valve assembly used in needleless injection or infusion ports

  • US 5,230,706 A
  • Filed: 03/12/1992
  • Issued: 07/27/1993
  • Est. Priority Date: 03/12/1992
  • Status: Expired due to Fees
First Claim
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1. A bi-directional valve assembly disposed within an infusion system to permit the administration of an infusion solution without the use of a needle, said bi-directional valve assembly is a two-way spring valve which comprises:

  • a spring means, a valve port, and a valve plunger having a sealing means and a conduit means disposed thereabout, wherein said spring means is connected to said valve plunger in such a way as to permit the opening of said conduit means when said spring means is recoiled such that said sealing means is not in contact with said valve port and to permit the closing of said conduit means when said spring means is expanded such that said sealing means is in contact with said valve port;

    whereby said bi-directional valve assembly is capable of opening and closing said infusion system.

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