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Partially implantable medical devices and delivery/manifold tube for use with same

  • US 9,370,619 B2
  • Filed: 02/21/2009
  • Issued: 06/21/2016
  • Est. Priority Date: 02/21/2009
  • Status: Active Grant
First Claim
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1. An apparatus for use with a fluid cartridge, comprising:

  • a percutaneous port including an interior configured to receive the fluid cartridge;

    an implantable operative portion including a fluid transfer device with a pump, an inlet and an outlet; and

    a delivery/manifold tube, having an outer perimeter and a longitudinal axis defining an axial direction, and including a manifold portion and a delivery portion, the manifold portion including a first fluid lumen that is operably connected to the fluid transfer device inlet, a second fluid lumen that is operably connected to the fluid transfer device outlet, and a lumen-free portion that is between the first and second lumens and is lumen-free in a cross-section which is perpendicular to the longitudinal axis and extends to the entire outer perimeter of the delivery/manifold tube at the lumen-free portion, that prevents all flow through the cross-section of the delivery/manifold tube in the axial direction during operation of the pump and that prevents direct flow from the first fluid lumen to the second fluid lumen during operation of the pump, and the delivery portion including a delivery lumen that is operably connected to the second fluid lumen.

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