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Coated surfaces for immobilizing negatively charged anticoagulating agents from blood fluid

  • US 20030229376A1
  • Filed: 03/14/2003
  • Published: 12/11/2003
  • Est. Priority Date: 06/01/1999
  • Status: Active Grant
First Claim
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1. A coating for a surface comprising:

  • at least a first coating, a second coating, and a third coating, wherein the first coating is in contact with at least a portion of the surface and the second coating is disposed between the first and the third coating, the first and third coatings comprising polyethyleneimine and the second coating comprising a high molecular weight negatively charged polymer.

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