February 23, 2006 - Dialysis-related patents granted this week:

• 7,001,353 - Device and a method for determining blood recirculation in a vascular access
  
• 7,002,670 - Optical sensor and method for measuring concentration of a chemical constituent using its intrinsic optical absorbance
  
• 7,001,396 - Safety introducer assembly and method
  

Dialysis-related patent applications filed this week:

• 20060041216 - Two stage hemofiltration that generates replacement fluid
  
• 20060037910 - Citrate-based dialysate chemical formulations