Patents by Inventor Johannes Swartling
Johannes Swartling 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).
-
Publication number: 20230210378Abstract: A system an d method of coupling light in and out of an optical member is described which includes transmitting at least one light beam within a wavelength range of infrared, visible or ultraviolet light using a light source; coupling the light beam into a proximal end of the optical member by means of at least one focussing optical component; collecting backscattered light using a distal end of the optical member and emitting the collected light at the proximal end of the optical member and wherein the light emitted by the optical member has at least partially a different angular sector than an angular sector of the light beam being coupled into the proximal end of the optical member, and detecting the collected light emitted from the proximal end of the optical member using at least one light detector.Type: ApplicationFiled: May 31, 2021Publication date: July 6, 2023Inventors: Johannes SWARTLING, Marcelo Soto Thompson, Rasmus Gronlund
-
Patent number: 11340161Abstract: An apparatus or method for measurement of multiple gas concentrations. The apparatus comprises a multi-wavelength laser module, and a multi-layered/multi-band detector.Type: GrantFiled: April 30, 2018Date of Patent: May 24, 2022Assignee: GasPorOx ABInventors: Märta Lewander Xu, Patrik Lundin, Johannes Swartling
-
Patent number: 11331512Abstract: A system and method for determining or estimating the presence and effect of light-attenuating inhomogeneities in tissue when performing medical treatment or diagnostics using optical members in tissue. The system and method comprising inserting a plurality of optical members into the tissue, and then measuring by emitting light through a sub-set of optical members at a time, while measuring the light collected by another sub-set of optical members. Combining said measurement data with a model for light propagation in tissue, and setting up a system of equations. Solving the unknown attenuation values from said system of equations.Type: GrantFiled: April 6, 2020Date of Patent: May 17, 2022Assignee: SpectraCure ABInventors: Johannes Swartling, Ida Arvidsson, Johan Axelsson
-
Publication number: 20220088405Abstract: A system and method for determining or estimating the presence and effect of light-attenuating inhomogeneities in tissue when performing medical treatment or diagnostics using optical members in tissue. The system and method comprising inserting a plurality of optical members into the tissue, and then measuring by emitting light through a sub-set of optical members at a time, while measuring the light collected by another sub-set of optical members. Combining said measurement data with a model for light propagation in tissue, and setting up a system of equations. Solving the unknown attenuation values from said system of equations.Type: ApplicationFiled: April 6, 2020Publication date: March 24, 2022Inventors: Johannes SWARTLING, Ida ARVIDSSON, Johan AXELSSON
-
Patent number: 10928314Abstract: A system and method for measuring a concentration of a gas in a container having at least one flexible or variable side or wall. The system and method comprising creating a determinable optical path length through the container having a shape. Positioning a light source head and a detector head against at least one of the least one flexible or variable side or wall. Transmitting a light signal between the light source head and the detector head through the determinable optical path length. Determining the concentration of the gas in the container based on detected light and the determinable optical path length.Type: GrantFiled: October 5, 2017Date of Patent: February 23, 2021Assignee: GasPorOx ABInventors: Märta Lewander Xu, Johannes Swartling, Daniel Karlsson, Patrik Lundin, Joan Sandberg
-
Publication number: 20200191713Abstract: An apparatus or method for measurement of multiple gas concentrations. The apparatus comprises a multi-wavelength laser module, and a multi-layered/multi-band detector.Type: ApplicationFiled: April 30, 2018Publication date: June 18, 2020Inventors: Märta LEWANDER XU, Patrik LUNDIN, Johannes SWARTLING
-
Patent number: 10466170Abstract: A system and method for measuring a concentration of a gas in a container having at least one flexible or variable side or wall. The system and method comprising creating a determinable optical path length through the container having a shape. Positioning a light source head and a detector head against at least one of the least one flexible or variable side or wall. Transmitting a light signal between the light source head and the detector head through the determinable optical path length. Determining the concentration of the gas in the container based on detected light and the determinable optical path length.Type: GrantFiled: October 5, 2017Date of Patent: November 5, 2019Assignee: GasPorOx ABInventors: Märta Lewander Xu, Johannes Swartling, Daniel Karlsson, Patrik Lundin, Joan Sandberg
-
Patent number: 10101239Abstract: A method and system is disclosed for determining the integrity of a closed container. The method and system includes the steps of positioning the container in a surrounding, changing a gas pressure, a gas composition, a gas concentration, or any combination of gas pressure, gas concentration and gas composition, in the surrounding. Thereafter subjecting the container to an optical sensor, non-intrusively, the sensor being sensitive to at least one gas, and the sensor is configured for detecting the at least one gas inside the container. Reading a signal from the optical sensor related to a gas pressure, a gas concentration, a gas composition, or any combination of gas pressure, gas concentration, and gas composition, inside the container. The behavior of the signal being indicative of breach in integrity of the container.Type: GrantFiled: April 4, 2016Date of Patent: October 16, 2018Assignee: GASPOROX ABInventors: Patrik Lundin, Daniel Karlsson, Märta Lewander Xu, Johannes Swartling, Joachim Dillner
-
Publication number: 20180188164Abstract: A system and method for measuring a concentration of a gas in a container having at least one flexible or variable side or wall. The system and method comprising creating a determinable optical path length through the container having a shape. Positioning a light source head and a detector head against at least one of the least one flexible or variable side or wall. Transmitting a light signal between the light source head and the detector head through the determinable optical path length. Determining the concentration of the gas in the container based on detected light and the determinable optical path length.Type: ApplicationFiled: October 5, 2017Publication date: July 5, 2018Applicant: GasPorOx ABInventors: Märta Lewander Xu, Johannes Swartling, Daniel Karlsson, Patrik Lundin, Joan Sandberg
-
Publication number: 20180100797Abstract: A system and method for measuring a concentration of a gas in a container having at least one flexible or variable side or wall. The system and method comprising creating a determinable optical path length through the container having a shape. Positioning a light source head and a detector head against at least one of the least one flexible or variable side or wall. Transmitting a light signal between the light source head and the detector head through the determinable optical path length. Determining the concentration of the gas in the container based on detected light and the determinable optical path length.Type: ApplicationFiled: October 5, 2017Publication date: April 12, 2018Applicant: GasPorOx ABInventors: Märta Lewander Xu, Johannes Swartling, Daniel Karlsson, Patrik Lundin, Joan Sandberg
-
Publication number: 20180095000Abstract: A method and system is disclosed for determining the integrity of a closed container. The method and system includes the steps of positioning the container in a surrounding, changing a gas pressure, a gas composition, a gas concentration, or any combination of gas pressure, gas concentration and gas composition, in the surrounding. Thereafter subjecting the container to an optical sensor, non-intrusively, the sensor being sensitive to at least one gas, and the sensor is configured for detecting the at least one gas inside the container. Reading a signal from the optical sensor related to a gas pressure, a gas concentration, a gas composition, or any combination of gas pressure, gas concentration, and gas composition, inside the container. The behaviour of the signal being indicative of breach in integrity of the container.Type: ApplicationFiled: April 4, 2016Publication date: April 5, 2018Applicant: GASPOROX ABInventors: Patrik LUNDIN, Daniel KARLSSON, Märta LEWANDER XU, Johannes SWARTLING, Joachim DILLNER
-
Patent number: 9841374Abstract: A system and method for measuring a concentration of a gas in a container having at least one flexible or variable side or wall. The system and method comprising creating a determinable optical path length through the container having a shape. Positioning a light source head and a detector head against at least one of the least one flexible or variable side or wall. Transmitting a light signal between the light source head and the detector head through the determinable optical path length. Determining the concentration of the gas in the container based on detected light and the determinable optical path length.Type: GrantFiled: May 27, 2014Date of Patent: December 12, 2017Assignee: GasPorOx ABInventors: Märta Lewander Xu, Johannes Swartling, Daniel Karlsson, Patrik Lundin, Joan Sandberg
-
Publication number: 20160169796Abstract: A system and method for measuring a concentration of a gas in a container having at least one flexible or variable side or wall. The system and method comprising creating a determinable optical path length through the container having a shape. Positioning a light source head and a detector head against at least one of the least one flexible or variable side or wall. Transmitting a light signal between the light source head and the detector head through the determinable optical path length. Determining the concentration of the gas in the container based on detected light and the determinable optical path length.Type: ApplicationFiled: May 27, 2014Publication date: June 16, 2016Applicant: GasPorOx ABInventors: Märta Lewander Xu, Johannes Swartling, Daniel Karlsson, Patrik Lundin, Joan Sandberg
-
Patent number: 8986358Abstract: A method and system for controlling and adjusting light in interstitial photodynamic light therapy (IPDT) in a subject is disclosed. More particularly, a method for controlling the light in interstitial tumor photodynamic light therapy is described using a calculation method for determination of status of tissue during the PDT treatment. The status is used in a feedback loop to control the continued PDT treatment. Methods are disclosed that constitute pre-treatment and realtime dosimetry modules for IPDT on the whole prostate glandular tissue. The method includes reconstruction of the target geometry, optimization of source fiber positions within this geometry, monitoring of the light attenuation during the treatment procedure and updating individual fiber irradiation times to take into account any variation in tissue light transmission.Type: GrantFiled: August 15, 2007Date of Patent: March 24, 2015Assignee: Spectracure ABInventors: Sune Svanberg, Johan Axelsson, Johannes Swartling, Ann Johansson, Stefan Andersson-Engels
-
Patent number: 8582841Abstract: A system for providing interstitial photodynamic and/or photothermal therapy on a region of tissue in a body, comprising at least one light source adapted to deliver a therapeutic light to the region of tissue, such that the light source is interstitially inserted into the tissue for interaction with a photosensitizer agent and/or for providing a controlled thermal environment of the tissue; and a unit for determining an optimized number of the light sources and individual position of each of the light sources in the region of tissue as well as individual control parameters for each of the light sources.Type: GrantFiled: July 14, 2010Date of Patent: November 12, 2013Assignee: SpectraCure ABInventors: Johannes Swartling, Sune Svanberg, Johan Axelsson, Stefan Andersson-Engels, Jarl Ebbe Johansson
-
Publication number: 20130197611Abstract: Control of interstitial photodynamic therapy (PDT) by means of modulation control and/or optical tomography are disclosed. Accurate reconstruction of optical properties in tissue treated by the PDT is provided. Optical tomography is used as an input for controlling dosimetry in said PDT system.Type: ApplicationFiled: June 11, 2008Publication date: August 1, 2013Inventors: Johannes Swartling, Johan Axelson
-
Publication number: 20110034971Abstract: A method and system for controlling and adjusting light in interstitial photodynamic light therapy (IPDT) in a subject is disclosed. More particularly, a method for controlling the light in interstitial tumor photodynamic light therapy is described using calculation method for determination of status of tissue during the PDT treatment. The status is used in a feedback loop to control the continued PDT treatment. Methods are disclosed that constitute pre-treatment and realtime dosimetry modules for IPDT on the whole prostate glandular tissue. The method includes reconstruction of the target geometry, optimization of source fiber positions within this geometry, monitoring of the light attenuation during the treatment procedure and updating individual fiber irradiation times to take into account any variation in tissue light transmission.Type: ApplicationFiled: August 15, 2007Publication date: February 10, 2011Applicant: Spectracure ABInventors: Sune Svanberg, Johan Axelsson, Johannes Swartling, Ann Johansson, Stefan Andersson-Engels
-
Publication number: 20100329524Abstract: A system for providing interstitial photodynamic and/or photothermal therapy on a region of tissue in a body, comprising at least one light source adapted to deliver a therapeutic light to the region of tissue, such that the light source is interstitially inserted into the tissue for interaction with a photosensitizer agent and/or for providing a controlled thermal environment of the tissue; and a unit for determining an optimized number of the light sources and individual position of each of the light sources in the region of tissue as well as individual control parameters for each of the light sources.Type: ApplicationFiled: July 14, 2010Publication date: December 30, 2010Applicant: Spectracure ABInventor: Johannes Swartling