Yuli Kitaevich - Loveland OH Nat Hemasilpin - Fairfield OH J. Gabriel Marchevsky - Cincinnati OH John J. Bissler - Cincinnati OH George Benzing, III - Cincinnati OH Paul T. McEnery - Cincinnati OH
A multipurpose hemofiltration system and method are disclosed for the removal of fluid and/or soluble waste from the blood of a patient. The system and method are equally applicable to adult, pediatric and neonatal patients. In one embodiment, the system continuously monitors the weight of infusate in a first reservoir and drained fluid in a second reservoir and compares those weights to corresponding predetermined computed weights. When necessary, the pumping rates of the infusate, drained fluid and blood are adjusted in order to achieve a preselected amount of fluid removal from the patients blood in a preselected time period. Application of this system and method provide repeatable and highly precise results. Alternatively, predetermined patient parameters can be monitored and the adjustment of pumping rates may be responsive to these monitored parameters. Suitable patient parameters are arterial pressure, central venous pressure, pulmonary arterial pressure, mean arterial pressure, capillary wedge pressure, systemic vascular resistance, cardiac output, mixed venous O saturation, arterial O saturation, blood pressure, heart rate, patient weight, and hematocrit.
A multipurpose hemofiltration system ( ) and method are disclosed for the removal of fluid and/or soluble waste from the blood of a patient. The system ( ) continuously monitors the flow rates of drained fluid, blood, and infusate. When necessary, the pumping rates of the infusate, drained fluid and blood are adjusted to remove a preselected amount of fluid from the blood in a preselected time period. A supervisory controller ( ) can monitor patient parameters, such as heart rate ( ) and blood pressure ( ), and adjust the pumping rates accordingly. The supervisory controller ( ) uses fuzzy logic to make expert decisions, based upon a set of supervisory rules, to control each pumping rate to achieve a desired flow rate and to respond to fault conditions. An adaptive controller ( ) corrects temporal variations in the flow rate based upon an adaptive law and a control law.
A system, program product and method continuously optimize an ultrafiltration rate during an extracorporeal renal replacement process by modeling physiological and actual rate data. The system maps the sensed, physiological data to a mathematical model to assess the data in terms of the ultrafiltration rate. The model provides parameters used to predict where the treatment is headed based on current conditions. The system processes the parameters in terms of preset criteria to generate the optimized ultrafiltration rate. Where the system is networked, communication of the data may be accomplished using remote and online communication techniques.
Hemofiltration System And Method Based On Monitored Patient Parameters, Supervisory Control Of Hemofiltration, And Adaptive Control Of Pumps For Hemofiltration
A multipurpose hemofiltration system and method are disclosed for the removal of fluid and/or soluble waste from the blood of a patient. The system continuously monitors the flow rates of drained fluid, blood, and infusate. When necessary, the pumping rates of the infusate, drained fluid and blood are adjusted to remove a preselected amount of fluid from the blood in a preselected time period. A supervisory controller can monitor patient parameters, such as heart rate and blood pressure, and adjust the pumping rates accordingly. The supervisory controller uses fuzzy logic to make expert decisions, based upon a set of supervisory rules, to control each pumping rate to achieve a desired flow rate and to respond to fault conditions. An adaptive controller corrects temporal variations in the flow rate based upon an adaptive law and a control law.
Hemofiltration System And Method Based On Monitored Patient Parameters, Supervisory Control Of Hemofiltration, And Adaptive Control Of Pumps For Hemofiltration
A multipurpose hemofiltration system and method are disclosed for the removal of fluid and/or soluble waste from the blood of a patient. The system continuously monitors the flow rates of drained fluid, blood, and infusate. When necessary, the pumping rates of the infusate, drained fluid and blood are adjusted to remove a preselected amount of fluid from the blood in a preselected time period. A supervisory controller can monitor patient parameters, such as heart rate and blood pressure, and adjust the pumping rates accordingly. The supervisory controller uses fuzzy logic to make expert decisions, based upon a set of supervisory rules, to control each pumping rate to achieve a desired flow rate and to respond to fault conditions. An adaptive controller corrects temporal variations in the flow rate based upon an adaptive law and a control law.
Yuli Kitaevich - Milford OH Nat Hemasilpin - Fairfield OH J. Gabriel Marchevsky - Cincinnati OH John J. Bissler - Cincinnati OH George Benzing - Cincinnati OH Paul T. McEnery - Cincinnati OH
Assignee:
Children's Hospital Medical Center - Cincinnati OH
International Classification:
B01D 6100
US Classification:
210645
Abstract:
A multipurpose hemofiltration system and method are disclosed for the removal of fluid and/or soluble waste from the blood of a patient. The system and method are equally applicable to adult, pediatric and neonatal patients. The system continuously monitors the weight of infusate in a first reservoir and drained fluid in a second reservoir and compares those weights to corresponding predetermined computed weights. When necessary, the pumping rates of the infusate, drained fluid and blood are adjusted in order to achieve a preselected amount of fluid removal from the patient's blood in a preselected time period. Application of this system and method provide repeatable and highly precise results.
Yuli Kitaevich - Loveland OH Nat Hemasilpin - Fairfield OH J. Gabriel Marchevsky - Cincinnati OH John J. Bissler - Cincinnati OH George Benzing - Cincinnati OH Paul T. McEnery - Cincinnati OH
Assignee:
Chidren's Hospital Medical Center - Cincinnati OH
International Classification:
A61M 134 B01D 6100 B01D 6118 B01D 6122
US Classification:
210739
Abstract:
A multipurpose hemofiltration system and method are disclosed for the removal of fluid and/or soluble waste from the blood of a patient. The system and method are equally applicable to adult, pediatric and neonatal patients. In one embodiment, the system continuously monitors the weight of infusate in a first reservoir and drained fluid in a second reservoir and compares those weights to corresponding predetermined computed weights. When necessary, the pumping rates of the infusate, drained fluid and blood are adjusted in order to achieve a preselected amount of fluid removal from the patient's blood in a preselected time period. Application of this system and method provide repeatable and highly precise results. Alternatively, predetermined patient parameters can be monitored and the adjustment of pumping rates may be responsive to these monitored parameters. Suitable patient parameters are arterial pressure, central venous pressure, pulmonary arterial pressure, mean arterial pressure, capillary wedge pressure, systemic vascular resistance, cardiac output, mixed venous O. sub.
Yuli Kitaevich - Milford OH Nat Hemasilpin - Fairfield OH J. Gabriel Marchevsky - Cincinnati OH John J. Bissler - Cincinnati OH George Benzing - Cincinnati OH Paul T. McEnery - Cincinnati OH
Assignee:
Children's Hospital Medical Center - Cincinnati OH
International Classification:
B01D 61100
US Classification:
210645
Abstract:
A multipurpose hemofiltration system and method are disclosed for the removal of fluid and/or soluble waste from the blood of a patient. The system and method are equally applicable to adult, pediatric and neonatal patients. The system continuously monitors the weight of infusate in a first reservoir and drained fluid in a second reservoir and compares those weights to corresponding predetermined computed weights. When necessary, the pumping rates of the infusate, drained fluid and blood are adjusted in order to achieve a preselected amount of fluid removal from the patient's blood in a preselected time period. Application of this system and method provide repeatable and highly precise results.