Patents by Inventor Kristian Solem

Kristian Solem 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).

  • Patent number: 11883571
    Abstract: 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: Grant
    Filed: April 15, 2020
    Date of Patent: January 30, 2024
    Assignee: Gambro Lundia AB
    Inventors: Paolo Rovatti, Alessandro Surace, Carlo Alberto Lodi, Anders Wallenborg, Anders Nilsson, Kristian Solem, Jan Sternby, Thomas Hertz
  • Publication number: 20230210663
    Abstract: An implantable medical device for transcatheter delivery, which includes an anchor unit (100) configured to be anchored at an annulus of a cardiac valve of a patient, at least one coupling unit (200) that extends along a first length radially from said anchor unit (100) towards a coaptation line of said valve and including an extension unit (400) extending along a second length. The extension unit (400) is configured to cross between the leaflets of the cardiac valve in order to fill out for an insufficient closing of the valve leaflets of said cardiac valve.
    Type: Application
    Filed: December 2, 2022
    Publication date: July 6, 2023
    Inventors: Kristian Solem, Jan Otto Solem
  • Publication number: 20230190467
    Abstract: An implantable medical device for transcatheter delivery, which includes an anchor unit (100) configured to be anchored at an annulus of a cardiac valve of a patient, at least one coupling unit (200) that extends along a first length radially from said anchor unit (100) towards a coaptation line of said valve and including an extension unit (400) extending along a second length. The extension unit (400) is configured to cross between the leaflets of the cardiac valve in order to fill out for an insufficient closing of the valve leaflets of said cardiac valve.
    Type: Application
    Filed: October 21, 2022
    Publication date: June 22, 2023
    Inventors: Kristian Solem, Jan Otto Solem
  • Publication number: 20220409235
    Abstract: An access device for a heart chamber, a removable hemostatic valve unit, and a system including a cardiac assist unit are disclosed. In examples, the access device) includes an apical base plate and a sealing unit configured to provide a separation of a wet zone from a heart chamber and a dry zone with a gaseous environment outside of said heart chamber inside a patient body at the same time.
    Type: Application
    Filed: June 6, 2022
    Publication date: December 29, 2022
    Applicant: Syntach AG
    Inventors: Jan Otto SOLEM, Kristian SOLEM, Daniel ENGVALL, Martin WOLFF
  • Publication number: 20220323105
    Abstract: An access device for a heart chamber, a removable hemostatic valve unit, and a system including a cardiac assist unit are disclosed. In examples, the access device) includes an apical base plate and a sealing unit configured to provide a separation of a wet zone from a heart chamber and a dry zone with a gaseous environment outside of said heart chamber inside a patient body at the same time.
    Type: Application
    Filed: June 6, 2022
    Publication date: October 13, 2022
    Applicant: Syntach AG
    Inventors: Jan Otto SOLEM, Kristian SOLEM, Daniel ENGVALL, Martin WOLFF
  • Publication number: 20220313309
    Abstract: An access device for a heart chamber, a removable hemostatic valve unit, and a system including a cardiac assist unit are disclosed. In examples, the access device) includes an apical base plate and a sealing unit configured to provide a separation of a wet zone from a heart chamber and a dry zone with a gaseous environment outside of said heart chamber inside a patient body at the same time.
    Type: Application
    Filed: June 6, 2022
    Publication date: October 6, 2022
    Applicant: Syntach AG
    Inventors: Jan Otto SOLEM, Kristian SOLEM, Daniel ENGVALL, Martin WOLFF
  • Publication number: 20220296272
    Abstract: An access device for a heart chamber, a removable hemostatic valve unit, and a system including a cardiac assist unit are disclosed. In examples, the access device) includes an apical base plate and a sealing unit configured to provide a separation of a wet zone from a heart chamber and a dry zone with a gaseous environment outside of said heart chamber inside a patient body at the same time.
    Type: Application
    Filed: June 6, 2022
    Publication date: September 22, 2022
    Applicant: Syntach AG
    Inventors: Jan Otto SOLEM, Kristian SOLEM, Daniel ENGVALL, Martin WOLFF
  • Publication number: 20220296273
    Abstract: An access device for a heart chamber, a removable hemostatic valve unit, and a system including a cardiac assist unit are disclosed. In examples, the access device) includes an apical base plate and a sealing unit configured to provide a separation of a wet zone from a heart chamber and a dry zone with a gaseous environment outside of said heart chamber inside a patient body at the same time.
    Type: Application
    Filed: June 6, 2022
    Publication date: September 22, 2022
    Applicant: Syntach AG
    Inventors: Jan Otto SOLEM, Kristian SOLEM, Daniel ENGVALL, Martin WOLFF
  • Patent number: 11426501
    Abstract: 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: Grant
    Filed: October 27, 2017
    Date of Patent: August 30, 2022
    Assignee: Gambro Lundia AB
    Inventors: Anders Wallenborg, Anders Nilsson, Kristian Solem, Thomas Hertz, Paolo Rovatti, Carlo Alberto Lodi, Alessandro Surace, Jan Sternby
  • Patent number: 11383012
    Abstract: 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: Grant
    Filed: October 26, 2017
    Date of Patent: July 12, 2022
    Assignee: Gambro Lundia AB
    Inventors: Anders Wallenborg, Anders Nilsson, Kristian Solem, Thomas Hertz, Paolo Rovatti, Carlo Alberto Lodi, Alessandro Surace, Jan Sternby
  • Patent number: 11300474
    Abstract: A method of monitoring the integrity of a fluid connection between first and second fluid containing systems based on at least one time-dependent measurement signal from a pressure sensor in the first fluid containing system. The pressure sensor detects first pulses originating from a first pulse generator in the first fluid containing system and second pulses originating from a second pulse generator in the second fluid containing system. A parameter value representing a distribution of signal values within a time window is calculated by analyzing the measurement signal in the time domain and/or by using information on the timing of the second pulses in the measurement signal. The parameter value may be calculated as a statistical dispersion measure of the signal values, or from matching the signal to a predicted temporal signal profile of the second pulse. The integrity of the fluid connection is determined from the parameter value.
    Type: Grant
    Filed: August 18, 2016
    Date of Patent: April 12, 2022
    Assignee: Gambro Lundia AB
    Inventors: Martin Furmanski, Anders Roslund, Bo Olde, Kristian Solem, Thomas Hertz, Jan Sternby
  • Publication number: 20210346586
    Abstract: A monitoring system performs a method for detecting a disruption of a fluid connection between a first fluid containing system and a second fluid containing system. The monitoring system generates a monitoring signal which is representative of a fluid pressure in respect of the first fluid containing system and which is responsive to the disruption of the fluid connection, and a tracking signal which corresponds to and is more smoothed over time than the monitoring signal. The monitoring system further sets a detection range in a given relation to the tracking signal so that the detection range follows changes in the tracking signal, and detects a condition indicative of the disruption by comparing a current pressure value of the monitoring signal to the detection range. The monitoring system may be connected to or part of an apparatus for blood treatment and operable to detect a disconnection of an extracorporeal blood circuit from a vascular system of a patient, e.g.
    Type: Application
    Filed: July 22, 2021
    Publication date: November 11, 2021
    Inventors: Kristian SOLEM, Bo OLDE, Jan STERNBY
  • Patent number: 11123468
    Abstract: A filtering device receives a pressure signal (P) from a pressure sensor in a fluid containing system, the pressure signal (P) comprising first pulses originating from a first periodic pulse generator and second pulses. The device acquires a reference signal which is indicative of a current operating frequency of the first periodic pulse generator. The device identifies, based on the reference signal, a plurality of harmonics (v1-v8) associated with the current operating frequency, computes correlation values (?1-?8) between the harmonics and the pressure signal (P) within a time window in the pressure signal (P), and generates a filtered signal by subtracting, as a function of the correlation values (?1-?8), the harmonics from the pressure signal (P). The use of correlation values is a direct, fast, robust and computation-efficient approach for estimating the signal contribution (d) from first pulses in the pressure signal (P).
    Type: Grant
    Filed: June 18, 2013
    Date of Patent: September 21, 2021
    Assignee: Gambro Lundia AB
    Inventors: Kristian Solem, Bo Olde, Jan Sternby
  • Patent number: 11123010
    Abstract: A monitoring arrangement 100 is configured to predict a rapid symptomatic drop in a subject's blood pressure, e.g. during a medical treatment or when operating aircraft. To this aim, a pulse shape parameter (pps) with respect to a peripheral body part (105) of the subject (P) is repeatedly registered by means of a pulse oximetry instrument (110) adapted to detect light response variations in blood vessels. A respective pulse magnitude measure is calculated based on each of a number of received pulse shape parameters (pps), and a statistical dispersion measure is calculated based on the thus-calculated pulse magnitude measure. It is investigated whether or not the statistical dispersion measure fulfils a decision criterion relative to a reference measure. An output signal (?) is generated if the decision criterion is found to be fulfilled.
    Type: Grant
    Filed: December 22, 2010
    Date of Patent: September 21, 2021
    Assignee: Gambro Lundia AB
    Inventors: Bo Olde, Kristian Solem
  • Publication number: 20210236285
    Abstract: An implantable medical device for transcatheter delivery, which includes an anchor unit (100) configured to be anchored at an annulus of a cardiac valve of a patient, at least one coupling unit (200) that extends along a first length radially from said anchor unit (100) towards a coaptation line of said valve and including an extension unit (400) extending along a second length. The extension unit (400) is configured to cross between the leaflets of the cardiac valve in order to fill out for an insufficient closing of the valve leaflets of said cardiac valve.
    Type: Application
    Filed: March 30, 2021
    Publication date: August 5, 2021
    Inventors: Kristian Solem, Jan Otto Solem
  • Patent number: 11077240
    Abstract: A monitoring system (9) performs a method for detecting a disruption of a fluid connection between a first fluid containing system and a second fluid containing system. The monitoring system generates a monitoring signal (M1) which is representative of a fluid pressure in respect of the first fluid containing system and which is responsive to the disruption of the fluid connection, and a tracking signal (T1) which corresponds to and is more smoothed over time than the monitoring signal (M1). The monitoring system (9) further sets a detection range (M1L, M1H) in a given relation to the tracking signal (T1) so that the detection range (M1L, M1H) follows changes in the tracking signal (T1), and detects a condition indicative of the disruption by comparing a current pressure value of the monitoring signal (M1) to the detection range (M1L, M1H).
    Type: Grant
    Filed: June 3, 2016
    Date of Patent: August 3, 2021
    Assignee: Gambro Lundia AB
    Inventors: Kristian Solem, Bo Olde, Jan Sternby
  • Publication number: 20210196316
    Abstract: An access device for a heart chamber, a removable hemostatic valve unit, and a system and a method of creating a transapical passage on a beating heart are disclosed. In examples, the access device (1) includes an apical base plate (100) and a sealing unit (3) configured to provide a separation of a wet zone from a heart chamber and a dry zone with a gaseous environment outside of said heart chamber inside a patient body at the same time.
    Type: Application
    Filed: August 11, 2020
    Publication date: July 1, 2021
    Applicant: Syntach AG
    Inventors: Jan Otto Solem, Kristian Solem, Daniel Engvall, Martin Wolff
  • Publication number: 20210128302
    Abstract: An at least partial annuloplasty ring for transcatheter cardiac valve treatment is disclosed. The annuloplasty ring has a plurality of separate chain segments serially interlinked and articulated to a chain. The chain has a substantially elongate delivery configuration and a curved deployment configuration. At least one of said chain segments has at least one tissue anchor attached to it, wherein the tissue anchor is movably arranged at least partly within the chain segment in the delivery configuration and protrudes from the chain segment in the deployment configuration in order to anchor with cardiac tissue.
    Type: Application
    Filed: January 8, 2021
    Publication date: May 6, 2021
    Inventors: Kristian Solem, Jan Otto Solem, Daniel Engvall, Victoria Krüger, Martin Wolff, Jonathan Berg, André Spånberg
  • Patent number: 10980431
    Abstract: A monitoring device is included in a medical system to implement a method for prediction of a rapid symptomatic drop in a subject's blood pressure, e.g. during a medical treatment such as dialysis. To this aim, a pulse shape parameter (pPS) with respect to a pulse generator of the subject is registered by means of a pressure sensor arranged in an extracorporeal blood flow circuit coupled to a cardiovascular system of the subject (P). The pressure sensor is configured to detect pressure variations in blood vessels of the subject (P). It is investigated, during measurement period, whether or not one or more of the pulse shape parameters fulfil a decision criterion. An output signal (a) is generated if the decision criterion is found to be fulfilled, to indicate a predicted rapid symptomatic blood pressure decrease in the subject (P).
    Type: Grant
    Filed: December 22, 2010
    Date of Patent: April 20, 2021
    Assignee: GAMBRO LUNDIA AB
    Inventors: Bo Olde, Kristian Solem
  • Publication number: 20200397581
    Abstract: An implantable medical device for transcatheter delivery is disclosed including: an anchor unit configured to be permanently anchored at a cardiac valve of a patient. At least one locking unit is provided for fixation of tissue of the cardiac valve and/or fixation of at least a part of a shape of the anchor unit and/or for connection to a further unit via the at least one coupling unit. The further unit is preferably a cardiac valve replacement or repair unit and/or a driving unit such as of a cardiac assist device. The device further includes at least one coupling unit of fixed permanent length or non-reversibly adjustable length before locking the coupling unit to the fixed permanent length for connecting the anchor unit to at least one of the locking unit. The coupling unit has a first end portion and a second end portion. The first end portion is connectable to the anchor unit, and the second end portion includes the locking unit.
    Type: Application
    Filed: August 31, 2020
    Publication date: December 24, 2020
    Inventors: Kristian Solem, Jan Otto Solem, Daniel Engvall, Victoria Krüger, Martin Wolff, Jonathan Berg, André Spånberg