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Strong diaphragm/safe needle units and components for transfer of fluids

  • US 6,221,056 B1
  • Filed: 12/19/1997
  • Issued: 04/24/2001
  • Est. Priority Date: 12/20/1996
  • Status: Expired due to Term
First Claim
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1. A strong diaphragm/safe needle unit comprising:

  • a needle with a closed, solid tip and a longitudinal through-bore for fluidic communication from a proximal hub to at least one distal orifice, the at least one distal orifice being in communication with the bore of the needle and recessed from the solid tip;

    wherein the solid tip is tapered at an angle of approximately between 45° and

    75°

    to a longitudinal axis of the needle; and

    an elastically deformable diaphragm which is penetrable by the needle with a clinically acceptable force and which provides effective, leak-free closure after penetration.

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