Patents by Inventor John O'Mahony
John O'Mahony has filed for patents to protect the following inventions. This listing includes patent applications that are pending as well as patents that have already been granted by the United States Patent and Trademark Office (USPTO).
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Publication number: 20120323157Abstract: 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.Type: ApplicationFiled: August 24, 2012Publication date: December 20, 2012Applicant: GAMBRO UF Solutions, Inc.Inventors: John O'MAHONY, Mark GELFAND, Edward G. RYCHLICK
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Patent number: 8267881Abstract: 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.Type: GrantFiled: March 8, 2010Date of Patent: September 18, 2012Assignee: Gambro UF Solutions, Inc.Inventors: John O'Mahony, Mark Gelfand, Edward Rychlick
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Publication number: 20120137578Abstract: An apparatus (6) for the cultivation of plants (10) is provided, the apparatus (6) comprising a track assembly (7,8,9,10); a plurality of support assemblies (5,6) mounted to the track assembly (7,8,9,10) so as to be moveable therealong; each support assembly comprising a receptacle for one or more plants (10), wherein the receptacle is removable from the apparatus. A growing room (2), such as a glasshouse or the like, comprising such an apparatus (6) is also provided.Type: ApplicationFiled: February 27, 2009Publication date: June 7, 2012Inventors: Christopher Branston Bradford, Roy John O'Mahony
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Publication number: 20120065482Abstract: The present invention provides methods and apparatuses related to measurement of analytes, including measurements of analytes in samples withdrawn from a patient.Type: ApplicationFiled: July 29, 2011Publication date: March 15, 2012Inventors: Mark Ries Robinson, Mike Borrello, Richard P. Thompson, Stephen Vanslyke, Shonn Hendee, Dan Welsh, Steve Bernard, John O'Mahony, Dave McMahon, Victor Gerald Grafe, Dave Tobler, William R. Patterson, Donald W. Landry, James H. Macemon, Russell Abbink
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Publication number: 20110208106Abstract: An ultrafiltration filter for an extracorporeal blood circuit having an input for blood withdrawn from a human patient and a blood output for filtered blood to be infused into the patient including: a filter body having a length of at least 20 centimeters (cm) and an interior diameter of no greater than 1.5 cm; an input at a first end of the body to receive the withdrawn blood; an output at a second end of the body to discharge the filtered blood; a filter membrane in the body defining a blood passage through the body, wherein the membrane has an active filter membrane surface area of no greater than 0.2 meters squared (m2) and the filter membrane blocks passage of blood molecules having a molecular weight cut of greater than 60,000 Daltons and a volume of the blood passage in the filter being less than two percent of a cardiac output of the patient, and an ultrafiltrate output to the body and open to a side of the filter surface area opposite to the blood passage.Type: ApplicationFiled: May 2, 2011Publication date: August 25, 2011Applicant: CHF SOLUTIONS, INC.Inventors: Howard R. Levin, Mark Gelfand, John O'Mahony, Hans-Dietrich Polaschegg
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Patent number: 7955289Abstract: 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.Type: GrantFiled: December 8, 2008Date of Patent: June 7, 2011Assignee: CHF Solutions, Inc.Inventors: John O'Mahony, Mark Gelfand, Edward G. Rychlick
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Patent number: 7935071Abstract: A fluid removal apparatus comprising a blood removal catheter for insertion into a peripheral vein or artery and having a size 16 standard gage needle or less; a filter having a blood inlet port coupled to the blood removal catheter, a blood outlet port, an excess fluid removal port, and a blood flow passage with porous membrane which passes fluids to the fluid removal port and retains solutes of 60,000 Daltons or greater, and a blood return catheter for inserting into a peripheral vein or artery and having a size of 16 standard gage needle or less.Type: GrantFiled: December 19, 2007Date of Patent: May 3, 2011Assignee: CHF Solutions, Inc.Inventors: Howard R. Levin, Mark Gelfand, John O'Mahony, Hans-Dietrich Polaschegg
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Publication number: 20090048576Abstract: The present invention comprises methods and apparatuses that can provide accurate measurement of glucose or other analytes from a multilumen catheter in the presence of infusion of substances, including glucose. Examples of “multilumen catheters” include central venous catheters having multiple lumens, midline catheters having multiple lumens, multiple catheters configured or emplaced such that their lumens are in proximity to each other, and, in the case of indwelling analyte sensors, a catheter with a lumen for infusion and an indwelling sensor spaced apart from the infusion lumen. For blood withdrawal, anti-cross contamination controls can prevent the entrainment of blood which might be contaminated with feeding fluids or medications that are administered through other lumens within the catheter and in proximity of the blood sampling port. Cross contamination can occur under various situations, and is known to occur when the patient is connected to a ventilator.Type: ApplicationFiled: September 25, 2007Publication date: February 19, 2009Inventors: Mark Ries Robinson, Mike Borrello, John O'Mahony, Richard Thompson, Dave Tobler, V. Gerald Grafe
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Publication number: 20090048535Abstract: The present invention comprises methods and apparatuses that can provide accurate measurement of glucose or other analytes from a multilumen catheter in the presence of infusion of substances, including glucose. Examples of “multilumen catheters” include central venous catheters having multiple lumens, midline catheters having multiple lumens, multiple catheters configured or emplaced such that their lumens are in proximity to each other, and, in the case of indwelling analyte sensors, a catheter with a lumen for infusion and an indwelling sensor spaced apart from the infusion lumen. For blood withdrawal, anti-cross contamination controls can prevent the entrainment of blood which might be contaminated with feeding fluids or medications that are administered through other lumens within the catheter and in proximity of the blood sampling port. Cross contamination can occur under various situations, and is known to occur when the patient is connected to a ventilator.Type: ApplicationFiled: September 25, 2007Publication date: February 19, 2009Inventors: Mark Ries Robinson, Mike Borrello, John O'Mahony, Richard Thompson, V. Gerald Grafe
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Publication number: 20090043240Abstract: A method and app for controlling blood withdrawal and infusion flow rate with the use of a pressure controller in connection with a blood measurement system. 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.Type: ApplicationFiled: April 23, 2008Publication date: February 12, 2009Inventors: Mark Ries Robinson, John O'Mahony
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Patent number: 7462161Abstract: 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.Type: GrantFiled: June 17, 2005Date of Patent: December 9, 2008Assignee: CHF Solutions, Inc.Inventors: John O'Mahony, Mark Gelfand, Edward G. Rychlick
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Publication number: 20080097273Abstract: A fluid removal apparatus comprising a blood removal catheter for insertion into a peripheral vein or artery and having a size 16 standard gage needle or less; a filter having a blood inlet port coupled to the blood removal catheter, a blood outlet port, an excess fluid removal port, and a blood flow passage with porous membrane which passes fluids to the fluid removal port and retains solutes of 60,000 Daltons or greater, and a blood return catheter for inserting into a peripheral vein or artery and having a size of 16 standard gage needle or less.Type: ApplicationFiled: December 19, 2007Publication date: April 24, 2008Applicant: CHF SOLUTIONS, INC.Inventors: Howard Levin, Mark Gelfand, John O'Mahony, Hans-Dietrich Polaschegg
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Publication number: 20080077069Abstract: A method for batch implementation of settings in a renal replacement therapy device including: displaying on a user interface control settings which may be manually selected by an operator; selecting an independent control setting of the plurality of control settings; adjusting the independent control setting to an independent control setting level selected by an operator; temporarily storing the adjusted independent control setting level; automatically adjusting a dependent control setting level based upon the independent control level; displaying the adjusted independent control setting level and the adjusted dependent control setting, and implementing both the adjusted independent control setting level and the adjusted dependent control setting to control the device, by actuating a batch setting acceptance operation.Type: ApplicationFiled: December 3, 2007Publication date: March 27, 2008Applicant: CHF SOLUTIONS, INC.Inventors: John O'Mahony, Thomas Lendway, Andrew Halpert
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Patent number: 7311689Abstract: A method and apparatus for ultrafiltration of blood operating by removing blood from a peripheral blood vessel at a rate of less than two percent of total cardiac output of a patient, extracting fluid at a rate of 0.1 liter to 1.0 liters per hour while retaining cells and proteins in the blood, and returning the concentrated blood to a secondary blood vessel is disclosed. Blood is removed and returned using small gage needles. As a pump circulates blood from the patient, a filter removes ultrafiltrate from the blood using duty cycle or pump control, and a transparent container collects the removed fluid.Type: GrantFiled: August 19, 2003Date of Patent: December 25, 2007Assignee: CHF Solutions, Inc.Inventors: Howard R. Levin, Mark Gelfand, John O'Mahony, Hans-Dietrich Polaschegg
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Publication number: 20070244382Abstract: The present invention comprises methods and apparatuses that can provide measurement of glucose and other analytes with a variety of sensors without many of the performance-degrading problems of conventional approaches. An apparatus according to the present invention comprises a blood access system, adapted to remove blood from a body and infuse at least a portion of the removed blood back into the body. Such an apparatus also comprises an analyte sensor, mounted with the blood access system such that the analyte sensor measures the analyte in the blood that has been removed from the body by the blood access system. A method according to the present invention comprises removing blood from a body, using an analyte sensor to measure an analyte in the removed blood, and infusing at least a portion of the removed blood back into the body. The use of a non-contact sensor with a closed system creates a system will minimal infection risk.Type: ApplicationFiled: February 28, 2007Publication date: October 18, 2007Inventors: Mark Ries Robinson, Mike Borrello, Richard Thompson, Stephen Vanslyke, Steve Bernard, John O'Mahony
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Publication number: 20070244381Abstract: The present invention comprises methods and apparatuses that can provide measurement of glucose and other analytes with a variety of sensors without many of the performance-degrading problems of conventional approaches. An apparatus according to the present invention comprises a blood access system, adapted to remove blood from a body and infuse at least a portion of the removed blood back into the body. Such an apparatus also comprises an analyte sensor, mounted with the blood access system such that the analyte sensor measures the analyte in the blood that has been removed from the body by the blood access system. A method according to the present invention comprises removing blood from a body, using an analyte sensor to measure an analyte in the removed blood, and infusing at least a portion of the removed blood back into the body. The use of a non-contact sensor with a closed system creates a system will minimal infection risk.Type: ApplicationFiled: February 27, 2007Publication date: October 18, 2007Inventors: Mark Ries Robinson, Mike Borrello, Richard Thompson, Stephen Vanslyke, Steve Bernard, John O'Mahony
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Publication number: 20070240497Abstract: The present invention comprises methods and apparatuses that can provide measurement of glucose and other analytes with a variety of sensors without many of the performance-degrading problems of conventional approaches. An apparatus according to the present invention comprises a blood access system, adapted to remove blood from a body and infuse at least a portion of the removed blood back into the body. Such an apparatus also comprises an analyte sensor, mounted with the blood access system such that the analyte sensor measures the analyte in the blood that has been removed from the body by the blood access system. A method according to the present invention comprises removing blood from a body, using an analyte sensor to measure an analyte in the removed blood, and infusing at least a portion of the removed blood back into the body. The use of a non-contact sensor with a closed system creates a system will minimal infection risk.Type: ApplicationFiled: February 27, 2007Publication date: October 18, 2007Inventors: Mark Ries Robinson, Mike Borrello, Richard Thompson, Stephen Vanslyke, Steve Bernard, John O'Mahony
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Publication number: 20070225675Abstract: The present invention comprises methods and apparatuses that can provide measurement of glucose and other analytes with a variety of sensors without many of the performance-degrading problems of conventional approaches. As apparatus according to the present invention comprises a blood access system, adapted to remove blood from a body and infuse at least a portion of the removed blood back into the body. Such an apparatus also comprises an analyte sensor, mounted with the blood access system such that the analyte sensor measures the analyte in the blood that has been removed from the body by the blood access system. A method according to the present invention comprises removing blood from a body, using an analyte sensor to measure an analyte in the removed blood, and infusing at least a portion of the removed blood back into the body. The use of a non-contact sensor with a closed system creates a system will minimal infection risk.Type: ApplicationFiled: February 28, 2007Publication date: September 27, 2007Inventors: Mark Ries Robinson, Mike Borrello, Richard Thompson, Stephen Vanslyke, Steve Bernard, John O'Mahony
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Publication number: 20070185429Abstract: A system is disclosed for detecting an electrical sensor, the system includes a sensor signal processing circuit further comprising an input port to receive a connector including the output signal lines of the sensor, a resistor connected to the output signal line of said input port, wherein the resistor is connected to a predetermined voltage; a sensor circuit having a connector adapted to connect to the connector, wherein the sensor circuit has a resistance substantially less than the pull-resistor, and the sensor signal processing circuit detects an unconnected sensor based on the voltage applied by the resistor.Type: ApplicationFiled: August 1, 2005Publication date: August 9, 2007Applicant: CHF Solutions Inc.Inventors: John O'Mahony, Mark Gelfand, Edwin Merrick, Jayne Merrick
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Publication number: 20070144794Abstract: A weight scale including: a measuring electronic circuit including a filter; a load cell attachable to a support housing and generating a load signal processed by the filter of the electronic circuit; a spring coupled to the load cell to apply a force to the load cell, wherein the load signal is indicative of the force, and a scale beam connected to the spring and to the support housing, wherein a weight to be measured is attached to the scale beam and the force applied by the spring is indicative of the weight, and wherein natural frequencies of the weight and spring is higher than a cut-off frequency of the filter.Type: ApplicationFiled: March 7, 2007Publication date: June 28, 2007Applicant: CHF SOLUTIONS INC.Inventors: John O'Mahony, Sonny Behan, Andrew Halpert, Edward Rychlick