Patents by Inventor Carlo Alberto Lodi
Carlo Alberto Lodi 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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Patent number: 11883571Abstract: An extracorporeal blood treatment apparatus includes a filtration unit (2) connected to a blood circuit (17) and a dialysate circuit (32), a preparation device (9) for preparing and regulating the composition of the dialysis fluid, and a sensor (11) for measuring conductivity of the dialysate (i.e. spent dialysis fluid); a control unit (12) configured for setting a sodium concentration in the dialysis fluid and after setting the dialysis fluid at the initial set point, circulating the dialysis fluid and blood through the filtration unit (2), measuring an initial conductivity value of the dialysate at the beginning of the treatment, and calculating, based on the measured initial conductivity value and on the corresponding conductivity value of the dialysis fluid, the value of the initial plasma conductivity, said circulating of the dialysis fluid up to the calculating of the initial plasma conductivity performed by maintaining the dialysis fluid conductivity substantially constant.Type: GrantFiled: April 15, 2020Date of Patent: January 30, 2024Assignee: Gambro Lundia ABInventors: Paolo Rovatti, Alessandro Surace, Carlo Alberto Lodi, Anders Wallenborg, Anders Nilsson, Kristian Solem, Jan Sternby, Thomas Hertz
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Patent number: 11426501Abstract: An extracorporeal blood treatment apparatus is provided comprising a filtration unit (2) connected to a blood circuit (17) and to a dialysate circuit (32), a preparation device (9) for preparing and regulating the composition of the dialysis fluid, and a sensor (11) for measuring conductivity of the dialysate (i.e.Type: GrantFiled: October 27, 2017Date of Patent: August 30, 2022Assignee: Gambro Lundia ABInventors: Anders Wallenborg, Anders Nilsson, Kristian Solem, Thomas Hertz, Paolo Rovatti, Carlo Alberto Lodi, Alessandro Surace, Jan Sternby
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Patent number: 11383012Abstract: An extracorporeal blood treatment apparatus is provided comprising a filtration unit (2) connected to a blood circuit (17) and to a dialysate circuit (32), a preparation device (9) for preparing and regulating the composition of the dialysis fluid; a control unit (12) is configured for setting a sodium concentration value for the dialysis fluid in the dialysis supply line (8) at a set point; the setting of the sodium concentration includes the sub-step of calculating the sodium concentration value as an algebraic sum of a main contribution term based on the blood plasma conductivity and of an adjustment contribution term based on a concentration of at least a substance in the dialysis fluid chosen in the group including bicarbonate, potassium, acetate, lactate, citrate, magnesium, calcium, sulphate, and phosphate.Type: GrantFiled: October 26, 2017Date of Patent: July 12, 2022Assignee: Gambro Lundia ABInventors: Anders Wallenborg, Anders Nilsson, Kristian Solem, Thomas Hertz, Paolo Rovatti, Carlo Alberto Lodi, Alessandro Surace, Jan Sternby
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Publication number: 20220096719Abstract: An extracorporeal blood treatment apparatus is provided comprising a filtration unit connected to a blood circuit and to a dialysate circuit, a preparation device for preparing and regulating the composition of the dialysis fluid; a control unit is configured for setting a sodium concentration value for the dialysis fluid in the dialysis supply line at a set point based on the physician prescription; starting from the initial patient plasma conductivity, estimated at the beginning of the treatment, and based on the target plasma conductivity/sodium concentration which is equivalent to the dialysate conductivity/sodium concentration prescribed, the control unit determines the minimum constant gradient between dialysis fluid and plasma conductivity/concentration to be maintained during treatment to achieve the conductivity/concentration target in the patient plasma at the end of the session.Type: ApplicationFiled: December 27, 2019Publication date: March 31, 2022Inventors: Paolo ROVATTI, Alessandro SURACE, Carlo Alberto LODI
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Publication number: 20200237990Abstract: An extracorporeal blood treatment apparatus includes a filtration unit (2) connected to a blood circuit (17) and a dialysate circuit (32), a preparation device (9) for preparing and regulating the composition of the dialysis fluid, and a sensor (11) for measuring conductivity of the dialysate (i.e. spent dialysis fluid); a control unit (12) configured for setting a sodium concentration in the dialysis fluid and after setting the dialysis fluid at the initial set point, circulating the dialysis fluid and blood through the filtration unit (2), measuring an initial conductivity value of the dialysate at the beginning of the treatment, and calculating, based on the measured initial conductivity value and on the corresponding conductivity value of the dialysis fluid, the value of the initial plasma conductivity, said circulating of the dialysis fluid up to the calculating of the initial plasma conductivity performed by maintaining the dialysis fluid conductivity substantially constant.Type: ApplicationFiled: April 15, 2020Publication date: July 30, 2020Inventors: Paolo ROVATTI, Alessandro SURACE, Carlo Alberto LODI, Anders WALLENBORG, Anders NILSSON, Kristian SOLEM, Jan STERNBY, Thomas HERTZ
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Patent number: 10646632Abstract: An extracorporeal blood treatment apparatus is provided comprising a filtration unit (2) connected to a blood circuit (17) and to a dialysate circuit (32), a preparation device (9) for preparing and regulating the composition of the dialysis fluid, and a sensor (11) for measuring conductivity of the dialysate (i.e.Type: GrantFiled: May 23, 2016Date of Patent: May 12, 2020Assignee: GAMBRO LUNDIA ABInventors: Paolo Rovatti, Alessandro Surace, Carlo Alberto Lodi, Anders Wallenborg, Anders Nilsson, Kristian Solem, Jan Sternby, Thomas Hertz
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Publication number: 20190374697Abstract: An extracorporeal blood treatment apparatus is provided comprising a filtration unit (2) connected to a blood circuit (17) and to a dialysate circuit (32), a preparation device (9) for preparing and regulating the composition of the dialysis fluid, and a sensor (11) for measuring conductivity of the dialysate (i.e.Type: ApplicationFiled: October 27, 2017Publication date: December 12, 2019Inventors: Anders Wallenborg, Anders Nilsson, Kristian Solem, Thomas Hertz, Paolo Rovatti, Carlo Alberto Lodi, Alessandro Surace, Jan Sternby
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Patent number: 10434236Abstract: An extracorporeal blood treatment apparatus is provided comprising a filtration unit (2) connected to a blood circuit (17) and to a dialysate circuit (32), a preparation device (9) for preparing and regulating the composition of the dialysis fluid; a control unit (12) is configured for setting a sodium concentration value for the dialysis fluid in the dialysis supply line (8) at a set point; the setting of the sodium concentration includes the sub-step of calculating the sodium concentration value as an algebraic sum of a main contribution term based on the blood plasma conductivity and of an adjustment contribution term based on a concentration of at least a substance in the dialysis fluid chosen in the group including bicarbonate, potassium, acetate, lactate, citrate, magnesium, calcium, sulphate, and phosphate.Type: GrantFiled: May 23, 2016Date of Patent: October 8, 2019Assignee: Gambro Lundia ABInventors: Paolo Rovatti, Alessandro Surace, Carlo Alberto Lodi, Anders Wallenborg, Anders Nilsson, Kristian Solem, Jan Sternby, Thomas Hertz
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Publication number: 20190275230Abstract: An extracorporeal blood treatment apparatus is provided comprising a filtration unit (2) connected to a blood circuit (17) and to a dialysate circuit (32), a preparation device (9) for preparing and regulating the composition of the dialysis fluid; a control unit (12) is configured for setting a sodium concentration value for the dialysis fluid in the dialysis supply line (8) at a set point; the setting of the sodium concentration includes the sub-step of calculating the sodium concentration value as an algebraic sum of a main contribution term based on the blood plasma conductivity and of an adjustment contribution term based on a concentration of at least a substance in the dialysis fluid chosen in the group including bicarbonate, potassium, acetate, lactate, citrate, magnesium, calcium, sulphate, and phosphate.Type: ApplicationFiled: October 26, 2017Publication date: September 12, 2019Inventors: Anders Wallenborg, Anders Nilsson, Kristian Solem, Thomas Hertz, Paolo Rovatti, Carlo Alberto Lodi, Alessandro Surace, Jan Sternby
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Patent number: 9138536Abstract: An apparatus for monitoring a vascular access includes a dialysis circuit having a venous needle and a blood pump of a peristaltic type which generates oscillatory perturbations in the circuit. An optical sensor, arranged on a patient's body by the venous needle, perceives the perturbations transmitted through the needle and sends a pulsating signal to an analysis device. The absence of a pulsating signal indicates a detachment of the needle.Type: GrantFiled: April 1, 2008Date of Patent: September 22, 2015Assignee: Gambro Lundia ABInventors: David Stefani, Carlo Alberto Lodi, Salvatore Sanna
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Publication number: 20110046533Abstract: An apparatus for monitoring a vascular access includes a dialysis circuit having a venous needle and a blood pump of a peristaltic type which generates oscillatory perturbations in the circuit. An optical sensor, arranged on a patient's body by the venous needle, perceives the perturbations transmitted through the needle and sends a pulsating signal to an analysis device. The absence of a pulsating signal indicates a detachment of the needle.Type: ApplicationFiled: April 1, 2008Publication date: February 24, 2011Inventors: David Stefani, Carlo Alberto Lodi, Salvatore Sanna
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Patent number: 7794419Abstract: The apparatus for blood flow control in an extracorporeal circuit comprises: a user interface for setting a desired blood flow value (qbREAL) and a datum relating to the vascular access, a memory for recording a plurality of mathematical relations having mathematical expressions relating to the vascular access organ to be used, and a control unit. The control unit identifies the vascular access, selects, from among the plurality of mathematical relations present in the memory, a relation which corresponds to the vascular access identified, and calculates, as a mathematical function of the set value for the desired flow (qbREAL), a value at which to set the angular velocity of the pump associated to the extracorporeal circuit and/or a theoretical value of the arterial pressure upstream of the pump.Type: GrantFiled: May 18, 2005Date of Patent: September 14, 2010Assignee: Gambro Lundia ABInventors: Francesco Paolini, Carlo Alberto Lodi, Francesco Fontanazzi
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Patent number: 7749184Abstract: In the apparatus and method for monitoring a vascular access (6) of an extracorporeal circuit (5; 10) of a patient, a control and calculation unit (17) varies a flow rate of a blood pump (9) predisposed to cause blood to circulate in the extracorporeal circuit. The control and calculation unit receives the pressure values in the blood withdrawal line (5) and the blood return line (10) from two pressure sensors (8, 12); the pressure values are a series of different values of the blood flow rate. The control and calculation unit processes the data gathered by means of a mathematical model which describes the variation of pressure in the vascular access as a function of the flow rate, in order to determine the blood flow rate in the vascular access. The invention detects the presence and location of a stenosis at the vascular access of a patient subjected to a hemodialysis treatment.Type: GrantFiled: December 20, 2006Date of Patent: July 6, 2010Assignee: Gambro Lundia ABInventors: Silvio Cavalcanti, Carlo Alberto Lodi, Massimo Fava
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Patent number: 7648474Abstract: A method of detecting the detachment of the venous needle from a patient during an extracorporeal blood treatment in a dialysis machine having an extracorporeal blood circuit provided with an arterial branch and a venous branch. The arterial pressure (Pa) is measured in the arterial branch and the venous pressure (Pv) is measured in the venous branch, and the determination is made of whether or not decreases of the arterial pressures (Pa) and venous pressures (Pv) are occurring during the dialysis treatment in normal conditions.Type: GrantFiled: June 24, 2002Date of Patent: January 19, 2010Assignee: Gambro Lundia ABInventors: Francesco Paolini, Carlo Alberto Lodi, Massimo Fava
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Publication number: 20080275377Abstract: The apparatus for blood flow control in an extracorporeal circuit comprises: a user interface for setting a desired blood flow value (qbREAL) and a datum relating to the vascular access, a memory for recording a plurality of mathematical relations having mathematical expressions relating to the vascular access organ to be used, and a control unit. The control unit identifies the vascular access, selects, from among the plurality of mathematical relations present in the memory, a relation which corresponds to the vascular access identified, and calculates, as a mathematical function of the set value for the desired flow (qbREAL), a value at which to set the angular velocity of the pump associated to the extracorporeal circuit and/or a theoretical value of the arterial pressure upstream of the pump.Type: ApplicationFiled: May 18, 2005Publication date: November 6, 2008Applicant: GAMBRO LUNDIA ABInventors: Francesco Paolini, Carlo Alberto Lodi, Francesco Fontanazzi
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Patent number: 7172570Abstract: In the apparatus and method for monitoring a vascular access (6) of an extracorporeal circuit (5; 10) of a patient, a control and calculation unit (17) varies a flow rate of a blood pump (9) predisposed to cause blood to circulate in the extracorporeal circuit. The control and calculation unit receives the pressure values in the blood withdrawal line (5) and the blood return line (10) from two pressure sensors (8, 12); the pressure values are a series of different values of the blood flow rate. The control and calculation unit processes the data gathered by means of a mathematical model which describes the variation of pressure in the vascular access as a function of the flow rate, in order to determine the blood flow rate in the vascular access. The invention detects the presence and location of a stenosis at the vascular access of a patient subjected to a hemodialysis treatment.Type: GrantFiled: January 28, 2004Date of Patent: February 6, 2007Inventors: Silvio Cavalcanti, Carlo Alberto Lodi, Massimo Fava
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Patent number: 7115107Abstract: A blood circuit (1) for a dialysis machine is made form plastic material and is provided with a metallic plate (30), which is applied to an external face of the blood circuit (1) and is connectable to a voltage generator (34) in such a way as to form a capacitor, in which the plate (30) and the blood act as the capacitor plates and the plastic material acts as the dielectric.Type: GrantFiled: May 30, 2002Date of Patent: October 3, 2006Assignee: Gambro Lundia ABInventors: Annalisa Delnevo, Carlo Alberto Lodi
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Patent number: 7060047Abstract: A method of sensing the detachment of the venous needle (13) from a patient (P) during an extracorporeal blood treatment in a dialysis machine (1) having an extracorporeal blood circuit (2), in which an electric current is made to flow along a closed-loop path (P1) of an electrical circuit (37) formed by an electrical line (21, 22, 23) external to the extracorporeal circuit (2), a portion of extracorporeal circuit (2) directly connected to the venous needle (13), and the patient (P); a signal correlated with the electric current along the electrical line (21, 22, 23) is detected; and the signal is compared with a threshold value by means of a control unit (15).Type: GrantFiled: May 30, 2002Date of Patent: June 13, 2006Assignee: Gambro Lundia ABInventors: Carlo Alberto Lodi, Francesco Paolini, Enrico Canini
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Publication number: 20040186409Abstract: In the apparatus and method for monitoring a vascular access (6) of an extracorporeal circuit (5; 10) of a patient, a control and calculation unit (17) varies a flow rate of a blood pump (9) predisposed to cause blood to circulate in the extracorporeal circuit. The control and calculation unit receives the pressure values in the blood withdrawal line (5) and the blood return line (10) from two pressure sensors (8, 12); the pressure values are a series of different values of the blood flow rate. The control and calculation unit processes the data gathered by means of a mathematical model which describes the variation of pressure in the vascular access as a function of the flow rate, in order to determine the blood flow rate in the vascular access. The invention detects the presence and location of a stenosis at the vascular access of a patient subjected to a hemodialysis treatment.Type: ApplicationFiled: January 28, 2004Publication date: September 23, 2004Applicants: GAMBRO DASCO S.p.A., GAMBRO LUNDIA AB.Inventors: Silvio Cavalcanti, Carlo Alberto Lodi, Massimo Fava
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Publication number: 20040171977Abstract: A method of detecting the detachment of the venous needle from a patient during an extracorporeal blood treatment in a dialysis machine having an extracorporeal blood circuit provided with an arterial branch and a venous branch. The arterial pressure (Pa) is measured in the arterial branch and the venous pressure (Pv) is measured in the venous branch, and the determination is made of whether or not decreases of the arterial pressures (Pa) and venous pressures (Pv) are occurring during the dialysis treatment in normal conditions.Type: ApplicationFiled: December 24, 2003Publication date: September 2, 2004Inventors: Francesco Alberto Paolini, Carlo Alberto Lodi, Massimo Fava