Patents by Inventor Jan Peter Sternby
Jan Peter Sternby 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: 9067027Abstract: The invention relates to a multi-ports extracorporeal medical device (1) having a selector body (19) which can be linearly displaced within the housing (16) in order to create different flow paths and connection among the ports. The device can for instance be used for reversing the flow in an extracorporeal blood circuit.Type: GrantFiled: October 28, 2013Date of Patent: June 30, 2015Assignee: Gambro Lundia ABInventors: Jan Peter Sternby, Eddie Nilsson, Lennart Jönsson
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Publication number: 20140048161Abstract: The invention relates to a multi-ports extracorporeal medical device (1) having a selector body (19) which can be linearly displaced within the housing (16) in order to create different flow paths and connection among the ports. The device can for instance be used for reversing the flow in an extracorporeal blood circuit.Type: ApplicationFiled: October 28, 2013Publication date: February 20, 2014Applicant: GAMBRO LUNDIA ABInventors: Jan Peter STERNBY, Eddie NILSSON, Lennart JÕNSSON
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Patent number: 8568346Abstract: The invention relates to a multi-ports extracorporeal medical device (1) having a selector body (19) which can be linearly displaced within the housing (16) in order to create different flow paths and connection among the ports. The device can for instance be used for reversing the flow in an extracorporeal blood circuit.Type: GrantFiled: June 27, 2007Date of Patent: October 29, 2013Assignee: Gambro Lundia ABInventors: Jan Peter Sternby, Eddie Nilsson, Lennart Jonsson
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Patent number: 7955291Abstract: A switch valve for use in an extracorporeal blood flow circuit comprises a valve housing having a chamber, four openings communicating with the chamber, and a valve member located in the valve chamber. A first opening is to be connected to a patient via an arterial cannula, a second opening is to be connected to a patient via an venous cannula, a third opening is to be connected to a first inlet/outlet of a blood treatment device, and a fourth opening is to be connected to a second inlet/outlet of a blood treatment device. The valve member is movable within the valve housing to fluidly connect the first opening to either the third or the fourth opening and to fluidly connect the second opening to either the third or the fourth opening. The width of the valve member is smaller than a peripheral dimension of the openings.Type: GrantFiled: August 27, 2009Date of Patent: June 7, 2011Assignee: Gambro Lundia ABInventor: Jan Peter Sternby
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Patent number: 7896831Abstract: A switch valve for use in an extracorporeal blood flow circuit comprises a valve housing having a chamber, four openings communicating with the chamber, and a valve member located in the valve chamber. A first opening is to be connected to a patient via an arterial cannula, a second opening is to be connected to a patient via an venous cannula, a third opening is to be connected to a first inlet/outlet of a blood treatment device, and a fourth opening is to be connected to a second inlet/outlet of a blood treatment device. The valve member is movable within the valve housing to fluidly connect the first opening to either the third or the fourth opening and to fluidly connect the second opening to either the third or the fourth opening. The width of the valve member is smaller than a peripheral dimension of the openings.Type: GrantFiled: March 6, 2009Date of Patent: March 1, 2011Assignee: Gambro Lundia ABInventors: Jan Peter Sternby, Gary Joel Mishkin, Perry Asbrink, Eddie Nilsson
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Patent number: 7815852Abstract: A method, apparatus and software program for measuring a parameter relating to the heart-lung system of a mammal are described. The method, software and apparatus can be implemented in a dialysis or other blood treatment apparatus comprising an extracorporeal blood circuit connected to a mammal; the circuit comprises a dialyzer, or other treatment unit, having a blood inlet, a blood outlet, a treatment fluid inlet and a treatment fluid outlet. The method comprises the steps of providing a pulse of a detectable substance in the blood circuit, measuring an integrated concentration of the detectable substance on the dialysis fluid outlet, determining the parameter based on the measurements on the dialysis fluid outlet.Type: GrantFiled: November 18, 2004Date of Patent: October 19, 2010Assignee: Gambro Lundia ABInventor: Jan Peter Sternby
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Patent number: 7815809Abstract: A method for conductivity calculation in a treatment fluid downstream a filtration unit in a blood treatment apparatus is provided. The conductivity calculation is then used for clearance and fistula flow determination. A flow of treatment fluid is created in the filtration unit; a change in the conductivity of the treatment fluid at the inlet of the filtration unit is imposed to cause an induced conductivity change in the fluid at the outlet of the filtration unit; a predetermined number of conductivity values Cdo downstream from the filtration unit are measured. The measured conductivity values define a curve the pattern of which is estimated by means of one interpolating mathematical function in an interval of time after the occurrence of the induced conductivity change; a characteristic measuring time tcalcclr is determined.Type: GrantFiled: December 13, 2005Date of Patent: October 19, 2010Assignee: Gambro Lundia ABInventors: Olof Jansson, Roland Persson, Jan Peter Sternby
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Publication number: 20100198129Abstract: The invention relates to a multi-ports extracorporeal medical device (1) having a selector body (19) which can be linearly displaced within the housing (16) in order to create different flow paths and connection among the ports. The device can for instance be used for reversing the flow in an extracorporeal blood circuit.Type: ApplicationFiled: June 27, 2007Publication date: August 5, 2010Applicant: GAMBRO LUNDIA ABInventors: Jan Peter Sternby, Eddie Nilsson, Lennart Jonsson
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Patent number: 7699992Abstract: During a dialysis treatment carried out by a dialysis apparatus, in which a dialysis liquid is circulated to a clean dialysate filter (43) arranged before a dialyser (3), the conductivity of the dialysis liquid is altered according to an altering function that is a function of a mathematical model of the filter (43), in a way that will make the conductivity after the filter change more quickly. A conductivity cell (47), which is arranged after the dialyser, measures the conductivity of the spent dialysis liquid changed in response to said alteration. A control and computer system (52) evaluates the dialysance from said measured response. The conductivity can be changed for a comparatively short time period that is sufficient to allow reliable results.Type: GrantFiled: December 17, 2004Date of Patent: April 20, 2010Assignee: Gambro Lundia ABInventor: Jan Peter Sternby
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Publication number: 20090314063Abstract: A switch valve for use in an extracorporeal blood flow circuit comprises a valve housing having a chamber, four openings communicating with the chamber, and a valve member located in the valve chamber. A first opening is to be connected to a patient via an arterial cannula, a second opening is to be connected to a patient via an venous cannula, a third opening is to be connected to a first inlet/outlet of a blood treatment device, and a fourth opening is to be connected to a second inlet/outlet of a blood treatment device. The valve member is movable within the valve housing to fluidly connect the first opening to either the third or the fourth opening and to fluidly connect the second opening to either the third or the fourth opening. The width of the valve member is smaller than a peripheral dimension of the openings.Type: ApplicationFiled: August 27, 2009Publication date: December 24, 2009Applicant: GAMBRO LUNDIA ABInventor: Jan Peter STERNBY
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Publication number: 20090171261Abstract: A switch valve for use in an extracorporeal blood flow circuit comprises a valve housing having a chamber, four openings communicating with the chamber, and a valve member located in the valve chamber. A first opening is to be connected to a patient via an arterial cannula, a second opening is to be connected to a patient via an venous cannula, a third opening is to be connected to a first inlet/outlet of a blood treatment device, and a fourth opening is to be connected to a second inlet/outlet of a blood treatment device. The valve member is movable within the valve housing to fluidly connect the first opening to either the third or the fourth opening and to fluidly connect the second opening to either the third or the fourth opening. The width of the valve member is smaller than a peripheral dimension of the openings.Type: ApplicationFiled: March 6, 2009Publication date: July 2, 2009Applicant: GAMBRO LUNDIA ABInventors: Jan Peter STERNBY, Gary Joel MISHKIN, Perry ASBRINK, Eddie NILSSON
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Patent number: 7500958Abstract: A switch valve for use in an extracorporeal blood flow circuit comprises a valve housing having a chamber, four openings communicating with the chamber, and a valve member located in the valve chamber. A first opening is to be connected to a patient via an arterial cannula, a second opening is to be connected to a patient via an venous cannula, a third opening is to be connected to a first inlet/oulet of a blood treatment device, and a fourth opening is to be connected to a second inlet/outlet of a blood treatment device. The valve member is movable within the valve housing to fluidly connect the first opening to either the third or the fourth opening and to fluidly connect the second opening to either the third or the fourth opening. The width of the valve member is smaller than a peripheral dimension of the openings.Type: GrantFiled: February 27, 2004Date of Patent: March 10, 2009Assignee: Gambro Lundia ABInventors: Perry Asbrink, Eddie Nilsson, Jan Peter Sternby
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Patent number: 7488447Abstract: The invention relates to characterization of a dialyzer's capacity to accomplish a dialysis clearance of a patient, and strategies for improving the efficiency of a dialysis treatment of the patient The invention involves determining a whole body clearance ratio (420) for a dialysis treatment of a patient (410). The whole body clearance ratio expresses how well the patient responds to a potential cleaning capacity of a dialyzer, which is used to perform the treatment.Type: GrantFiled: October 28, 2003Date of Patent: February 10, 2009Assignee: Gambro Lundia ABInventor: Jan Peter Sternby
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Patent number: 7435235Abstract: A method and blood treatment equipment for controlling infusion are described. The equipment comprising: an extracorporeal blood circuit, a pre-infusion line connected to the blood circuit upstream a blood treatment unit, a post-infusion line connected to the blood circuit downstream the blood treatment unit, a waste line connected to an outlet of the treatment unit. A sensor operates on the waste line for sensing at least one fluid parameter and is connected to a control unit which commands a fluid flow through said pre-infusion line and through said post-infusion line. The control unit also determines from values of said fluid parameter at least a corresponding value of an efficiency parameter relating to blood depuration efficiency of the blood treatment unit, and controls the flow rate of at least one of the fluid flows through said infusion lines as a function of the value of the efficiency parameter. A software program for execution by the control unit is also claimed.Type: GrantFiled: May 5, 2005Date of Patent: October 14, 2008Assignee: Gambro Lundia ABInventor: Jan Peter Sternby
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Publication number: 20040168969Abstract: A switch valve for use in an extracorporeal blood flow circuit comprises a valve housing having a chamber, four openings communicating with the chamber, and a valve member located in the valve chamber. A first opening is to be connected to a patient via an arterial cannula, a second opening is to be connected to a patient via an venous cannula, a third opening is to be connected to a first inlet/oulet of a blood treatment device, and a fourth opening is to be connected to a second inlet/outlet of a blood treatment device. The valve member is movable within the valve housing to fluidly connect the first opening to either the third or the fourth opening and to fluidly connect the second opening to either the third or the fourth opening. The width of the valve member is smaller than a peripheral dimension of the openings.Type: ApplicationFiled: February 27, 2004Publication date: September 2, 2004Applicant: Gambro Lundia ABInventors: Jan Peter Sternby, Gary Joel Mishkin, Perry Asbrink, Eddie Nilsson
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Patent number: 6726647Abstract: An arterial needle removes blood from the access to an extracorporeal circuit comprising a dialyzer and a venous needle returns the blood to the access site. Blood passes along one side of the membrane of the dialyzer and dialysis fluid along the other side. The concentration (Cd norm and Cd rev) of urea in the dialysate emitted from the dialyzer is measured with the needles in the normal position and in a reversed position. The access flow rate before the arterial needle is calculated according to the formula: Cd norm/Cd rev=1+Keff/Qa in which Keff is the effective clearance of the dialyzer and Qa is the access flow rate.Type: GrantFiled: October 22, 1999Date of Patent: April 27, 2004Assignee: Gambro ABInventors: Jan Peter Sternby, Gary Joel Mishkin, Perry Asbrink, Eddie Nilsson