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Hemodialysis access device

  • US 5,704,915 A
  • Filed: 02/14/1995
  • Issued: 01/06/1998
  • Est. Priority Date: 02/14/1995
  • Status: Expired due to Fees
First Claim
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1. A vascular access device for hemodialysis, comprising:

  • a pair of similar, generally conical, hollow shells, each shell having an entrance end and a smaller exit end defining a smoothly converging flow passage therebetween, and an axis extending between said ends;

    means for connecting said pair of shells together along a common line of tangency, each of said shells being disposed with said axis at an acute angle relative to said common line of tangency;

    a pair of self-sealing septa closing said entrance ends of said pair of shells; and

    a pair of outlet tubes having corresponding first ends respectively extending from said exit ends of said pair of shells, said first ends of said pair of outlet tubes being spaced apart and disposed parallel to said line of tangency, such that when blood flows through each of said shells it follows said smoothly converging flow passage along said axis between said entrance end and said exit end of said shell, and undergoes a change in direction equal to said acute angle as it passes into said respective outlet tube.

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