07674237 is referenced by 7 patents and cites 57 patents.

A method and apparatus for controlling blood withdrawal and infusion flow rate with the use of a pressure controller. The pressure controller uses pressure targets based upon occlusion limits that are calculated as a function of flow. The controller has the ability to switch from controlling withdrawal pressure to controlling infusion pressure based upon the detection of an occlusion. The controller distinguishes between partial and total occlusions of the withdrawal vein providing blood access. Depending on the nature of occlusion, the controller limits or temporarily reverses blood flow and, thus, prevents withdrawal vessel collapse or reverses blood flow to quickly infuse blood into the vessel without participation from operator.

Title
Method and apparatus for blood withdrawal and infusion using a pressure controller
Application Number
10/601574
Publication Number
7674237 (B2)
Application Date
June 24, 2003
Publication Date
March 9, 2010
Inventor
Edward G Rychlick
Riverdale
NY, US
Mark Gelfand
New York
NY, US
John J O Mahony
Hackensack
NJ, US
Agent
Nixon & Vanderhye P C
Assignee
CHF Solutions
MN, US
IPC
C02F 1/44
A61M 37/00
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