1
Howard R Levin, Mark Gelfand, Steve Bernard: Kidney perfusion catheter. CHF Solutions, Nixon & Vanderhye P C, July 15, 2003: US06592567 (230 worldwide citation)

A kidney perfusion catheter assembly is disclosed having an introducer catheter, a renal artery seal, a perfusion tip, and a guide wire. The perfusion catheter provides a flow of supplemental blood to increase the local blood pressure in the renal artery and to perfuse the kidney. The introducer cat ...


2
Howard R Levin, Mark Gelfand: Method and apparatus for treatment of congestive heart failure by improving perfusion of the kidney. CHF Solutions, Nixon & Vanderhye P C, February 4, 2003: US06514226 (223 worldwide citation)

A method for treating congestive heart failure (CHF) has been developed that restores kidney renal functions by artificially perfusion of at least one kidney. The kidney is perfused with the patient's blood or other suitable perfusion fluid. A catheter inserted into the aorta of the patient has ...


3
John J O&apos Mahony, Mark Gelfand, Edward G Rychlick: Method and apparatus for blood withdrawal and infusion using a pressure controller. CHF Solutions, Nixon & Vanderhye P C, July 1, 2003: US06585675 (196 worldwide citation)

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 withdra ...


4
John J O Mahony, Andrew Halpert, Mark Gelfand: User interface for blood treatment device. CHF Solutions, Nixon & Vanderhye P C, August 2, 2005: US06923782 (69 worldwide citation)

A graphical user interface for a medical instruments for a Renal Replacement Therapy includes a pictogram representation of cthe fluid path of an extracorporeal blood circuit that represents fluid lines, pumps and sensors. To assist the user in responding to alarms and rectifying faults in the syste ...


5
Howard R Levin, Mark Gelfand, Steve Bernard: Method and apparatus for ultrafiltration utilizing a long peripheral access venous cannula for blood withdrawal. CHF Solutions, Nixon & Vanderhye P C, February 3, 2004: US06685664 (63 worldwide citation)

Method and apparatus for the extracorporeal treatment of blood by utilizing a peripherally inserted catheter assembly for the continuous removal of blood for renal replacement treatment, in particularly, treatment of congestive heart failure and fluid overload by ultrafiltration. A catheter is inser ...


6
John J O&apos Mahony, Andrew Halpert, Edward G Rychlick, Mark Gelfand: Method to control blood and filtrate flowing through an extracorporeal device. CHF Solutions, Nixon & Vanderhye P C, September 28, 2004: US06796955 (61 worldwide citation)

A method and apparatus are disclosed for controlling blood flow through an extracorporeal blood circuit having a controller comprising the steps of: withdrawing the blood from a withdrawal blood vessel in a patient into the extracorporeal circuit, treating the blood in the circuit and infusing the t ...


7
Howard R Levin, Mark Gelfand, Steven Bernard: Blood pump having a disposable blood passage cartridge with integrated pressure sensors. CHF Solutions, Nixon & Vanderhye P C, May 3, 2005: US06887214 (59 worldwide citation)

An integrated disposable cartridge for dialysis or ultrafiltration treatment of blood is disclosed that includes integral miniature pressure sensors. Sensors are embedded in the tubing of the cartridge to measure pressure of blood or other fluids. Cartridge elements form a continuous smooth bore pas ...


8
Mark Gelfand, John J O&apos Mahony: Artificial kidney set with electronic key. CHF Solutions, Nixon & Vanderhye P C, October 22, 2002: US06468241 (52 worldwide citation)

An integrated disposable set for dialysis or ultrafiltration treatment of blood is disclosed that includes a memory “key” chip. The key contains information relating to the set, including calibration for sensors, model and date of manufacture and a proprietary secret code to prevent unauthorized dup ...


9
Mark Gelfand, John O&apos Mahoney, Howard R Levin: Feedback control of ultrafiltration to prevent hypotension. CHF Solutions, Nixon & Vanderhye P C, March 16, 2004: US06706007 (51 worldwide citation)

A method and system for the extracorporeal treatment of blood to remove fluid from the fluid overloaded patient is disclosed that non-invasively measures an oxygen level in the venous blood. The oxygen blood level is used to detect when hypotension is about to occur in a patient. The oxygen level me ...


10
Steven J Bernard, John J O Mahony, Andrew J Halpert, Mark Gelfand, Howard R Levin: Method and device for removal of radiocontrast media from blood. CHF Solutions, Nixon & Vanderhye P C, January 16, 2007: US07163520 (49 worldwide citation)

An extracorpeal blood circuit for removal of contrast from human blood using a filter and withdrawal filter pump and a by-pass pump. The withdrawal filter blood pump operates when a contrast bolus has been detected. Otherwise the bypass blood pump maintains physiological blood flow from the coronary ...