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Methods, apparatuses and systems for drainage

  • US 10,022,528 B2
  • Filed: 11/07/2014
  • Issued: 07/17/2018
  • Est. Priority Date: 07/09/2008
  • Status: Active Grant
First Claim
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1. A cannula for positioning in a blood vessel, comprising:

  • an intravascular surface enclosing a hollow intravascular interior for receiving and draining an entire volume of blood from the blood vessel;

    a plurality of orifices disposed in the intravascular surface, wherein a surface area of the intravascular surface consumed by the plurality of orifices is larger than at least 5% of a remaining surface area of the intravascular surface not consumed by the plurality of orifices, the plurality of orifices causing the cannula to be substantially wall-less, wherein drainage of the vessel is configured to be performed over an entire outer circumference of the cannula after application of a driving pressure in a range of 5 mmHg to 60 mmHg;

    the cannula having a length of between 30 cm and 70 cm.

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