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Fluid medication delivery device

  • US 7,470,266 B2
  • Filed: 09/16/2003
  • Issued: 12/30/2008
  • Est. Priority Date: 09/16/2003
  • Status: Active Grant
First Claim
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1. A fluid medication delivery device, comprising:

  • a fluid impermeable layer;

    a fluid semi-permeable layer, said semi-permeable layer and said impermeable layer cooperating to define a space therebetween, said space defining a fluid reservoir of said delivery device, said semi-permeable layer and said impermeable layer having a continuous seal therebetween to define a periphery of said fluid reservoir;

    at least one internal wall within the periphery of said fluid reservoir configured so as to form multiple interconnected regions within said fluid reservoir, each said internal wall formed by securing a portion of said fluid impermeable layer located inside said periphery to a portion of said fluid semi-permeable layer located inside said periphery such that said portion of said fluid impermeable layer abuts said portion of said fluid semi-permeable layer; and

    a fluid inlet communicating with said fluid reservoir, said fluid inlet comprising a valve configured to permit fluid entry into said fluid reservoir, said fluid inlet adapted to permit said delivery device to be selectively connectable to a connector for a supply of fluid, said delivery device adapted to selectively secure said connector in the radial and axial direction, wherein said valve comprises a one-way valve configured such that, when said connector is secured to said fluid inlet, said one-way valve permits fluid to enter said fluid reservoir and prevents fluid from exiting said fluid reservoir through said fluid inlet;

    wherein a fluid is diffusable across said semi-permeable layer in response to a pressure imparted on said fluid.

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