Patents by Inventor Gustaf Jarnefelt

Gustaf Jarnefelt 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: 20230293903
    Abstract: According to an example aspect of the present invention, there is provided a method for the delivery of a session of therapeutic transcranial magnetic stimulation, TMS, the method comprising: defining a session of transcranial magnetic stimulation, TMS, the session of TMS comprising a plurality of pulse trains, each pulse train comprising at least one burst and each burst comprising at least one pulse pair; placing a TMS device relative to an individual's brain such that the TMS device targets a selected region within the brain; and applying the session of TMS using the TMS device, wherein each pulse train comprises 2 to 20 bursts, the interval between bursts being 80 to 500 ms, the interval between pulses of the at least one pulse pair is 1 to 20 ms, and the interval between pulse trains is 1 to 60 seconds.
    Type: Application
    Filed: March 21, 2023
    Publication date: September 21, 2023
    Inventor: Gustaf Järnefelt
  • Publication number: 20220288409
    Abstract: An apparatus and method for facilitating delivery of Transcranial Magnetic Stimulation (TMS) by: receiving anatomical data for a person defining a shape of at least the cranium and an outer surface of the skin surrounding the cranium; receiving information from a tracking system regarding a real-time position and orientation of the head of the person; and controlling a multi-axis robotic arm to maintain a TMS stimulation device at an optimal position and orientation relative to the head based on the anatomical data and the information regarding the real-time position and orientation of the head in order to target a predetermined location within the cranium with the TMS stimulation device; wherein the optimal position and orientation is such that a surface of the TMS stimulation device is a predetermined distance from the outer surface of the skin.
    Type: Application
    Filed: March 15, 2022
    Publication date: September 15, 2022
    Inventor: Gustaf Järnefelt
  • Patent number: 11266851
    Abstract: It is an aspect of the present invention to provide a method for recording a response to Transcranial Magnetic Stimulation (TMS) utilizing a bi-phasic double pulse pair from a TMS coil device to stimulate a subject wherein the second pulse has a lower amplitude compared to the first pulse in the bi-phasic double pulse pair. Significant advantages are achieved using bi-phasic double pulse pairs, particularly where the second pulse in a pair has an intensity lower than the first. Obtaining measurements is simpler and more accurate as the number and intensity of stimulation can be reduced compared to standard single pulse stimulation.
    Type: Grant
    Filed: May 27, 2019
    Date of Patent: March 8, 2022
    Assignee: Nexstim Oyj
    Inventors: Tuomas Neuvonen, Henri Hannula, Gustaf Järnefelt, Jarmo Laine
  • Patent number: 10780291
    Abstract: Provided herein is a multichannel Transcranial Magnetic Stimulation (mTMS) coil device with two or more overlapping coil windings within a casing. The mTMS coil device is capable of adjusting parameters of the stimulation of magnetic and induced electric fields through the selective control of the multiple coil windings within the mTMS coil device. Additionally, provided are methods of operation including navigated TMS for adjusting parameters such as location, direction and/or orientation of magnetic and induced electric fields from mTMS coil devices.
    Type: Grant
    Filed: June 3, 2014
    Date of Patent: September 22, 2020
    Assignee: Nexstim Oyj
    Inventors: Risto Ilmoniemi, Lari Koponen, Jaakko Nieminen, Gustaf Järnefelt
  • Patent number: 10576296
    Abstract: Described herein are methods including determining a structural effectiveness index (SEI) for a target area of a brain which accounts for the effectiveness of a Transcranial Magnetic Stimulation (TMS) pulse based on at least one neurological feature of the brain. An SEI may include an anisotropy index (AI). An AI may account for the effectiveness of a TMS pulse based at least on the local anisotropy of the target area. An SEI may include a connectivity index (CI). A CI may account for the effectiveness of a TMS pulse at a different location of the brain than a stimulated target area. Moreover, the CI can be based at least partially on white matter tract connections. The SEI of at least one area of a brain may be used in order to plan a minimum effective dose at that location based on the actual neurological structure there, e.g. the anisotropy or white matter tracts at that area.
    Type: Grant
    Filed: March 23, 2015
    Date of Patent: March 3, 2020
    Assignee: Nexstim Oyj
    Inventors: Gustaf Järnefelt, Petro Julkunen
  • Publication number: 20200038675
    Abstract: It is an aspect of the present invention to provide a method for recording a response to Transcranial Magnetic Stimulation (TMS) utilizing a bi-phasic double pulse pair from a TMS coil device to stimulate a subject wherein the second pulse has a lower amplitude compared to the first pulse in the bi-phasic double pulse pair. Significant advantages are achieved using bi-phasic double pulse pairs, particularly where the second pulse in a pair has an intensity lower than the first. Obtaining measurements is simpler and more accurate as the number and intensity of stimulation can be reduced compared to standard single pulse stimulation.
    Type: Application
    Filed: May 27, 2019
    Publication date: February 6, 2020
    Inventors: Tuomas Neuvonen, Henri Hannula, Gustaf Järnefelt, Jarmo Laine
  • Patent number: 10383541
    Abstract: The present invention relates to the field of mapping cognitive brain functions, more specifically to non-invasive systems for and methods of cognitive mapping. Examples of cognitive brain function which can reliably be mapped according to embodiments of the present invention are speech, language, working-memory and decision-making. According to certain embodiments, navigated Transcranial Magnetic Stimulation (TMS) is utilized along with accurate baseline determination in order to provide accurate, non-invasive cognitive mapping.
    Type: Grant
    Filed: March 5, 2012
    Date of Patent: August 20, 2019
    Assignee: Nexstim Oyj
    Inventors: Tuomas Neuvonen, Henri Hannula, Gustaf Jarnefelt
  • Patent number: 10300294
    Abstract: It is an aspect of the present invention to provide a method for recording a response to Transcranial Magnetic Stimulation (TMS) utilizing a bi-phasic double pulse pair from a TMS coil device to stimulate a subject wherein the second pulse has a lower amplitude compared to the first pulse in the bi-phasic double pulse pair. Significant advantages are achieved using bi-phasic double pulse pairs, particularly where the second pulse in a pair has an intensity lower than the first. Obtaining measurements is simpler and more accurate as the number and intensity of stimulation can be reduced compared to standard single pulse stimulation.
    Type: Grant
    Filed: September 7, 2012
    Date of Patent: May 28, 2019
    Assignee: Nexstim Oyj
    Inventors: Tuomas Neuvonen, Henri Hannula, Gustaf Jarnefelt, Jarmo Laine
  • Patent number: 10188868
    Abstract: According to an example embodiment of the present invention, there is provided an apparatus, comprising a first arm configured to accept a device, the first arm comprising a first counterweight arrangement, a second arm supporting the first arm by a coupling, and a base defining a curve and having the second arm mounted thereon, wherein the second arm is movable along the curve, the base configured to be mounted on a chair. The second arm may be furnished with a second counterweight arrangement.
    Type: Grant
    Filed: November 29, 2013
    Date of Patent: January 29, 2019
    Assignee: Nexstim Oyj
    Inventors: Pentti Hynninen, Gustaf Järnefelt
  • Publication number: 20160106995
    Abstract: Described herein are methods including determining a structural effectiveness index (SEI) for a target area of a brain which accounts for the effectiveness of a Transcranial Magnetic Stimulation (TMS) pulse based on at least one neurological feature of the brain. An SEI may include an anisotropy index (AI). An AI may account for the effectiveness of a TMS pulse based at least on the local anisotropy of the target area. An SEI may include a connectivity index (CI). A CI may account for the effectiveness of a TMS pulse at a different location of the brain than a stimulated target area. Moreover, the CI can be based at least partially on white matter tract connections. The SEI of at least one area of a brain may be used in order to plan a minimum effective dose at that location based on the actual neurological structure there, e.g. the anisotropy or white matter tracts at that area.
    Type: Application
    Filed: March 23, 2015
    Publication date: April 21, 2016
    Inventors: Gustaf Järnefelt, Petro Julkunen
  • Publication number: 20150151137
    Abstract: According to an example embodiment of the present invention, there is provided an apparatus, comprising a first arm configured to accept a device, the first aim comprising a first counterweight arrangement, a second arm supporting the first arm by a coupling, and a base defining a curve and having the second arm mounted thereon, wherein the second arm is movable along the curve, the base configured to be mounted on a chair. The second arm may be furnished with a second counterweight arrangement.
    Type: Application
    Filed: November 29, 2013
    Publication date: June 4, 2015
    Applicant: Nexstim Oy
    Inventors: Pentti Hynninen, Gustaf Järnefelt
  • Publication number: 20150018692
    Abstract: It is an aspect of the present invention to provide a method for recording a response to Transcranial Magnetic Stimulation (TMS) utilizing a bi-phasic double pulse pair from a TMS coil device to stimulate a subject wherein the second pulse has a lower amplitude compared to the first pulse in the bi-phasic double pulse pair. Significant advantages are achieved using bi-phasic double pulse pairs, particularly where the second pulse in a pair has an intensity lower than the first. Obtaining measurements is simpler and more accurate as the number and intensity of stimulation can be reduced compared to standard single pulse stimulation.
    Type: Application
    Filed: September 7, 2012
    Publication date: January 15, 2015
    Applicant: NEXSTIM OY
    Inventors: Tuomas Neuvonen, Henri Hannula, Gustaf Jarnefelt, Jarmo Laine
  • Publication number: 20140357935
    Abstract: Provided herein is a multichannel Transcranial Magnetic Stimulation (mTMS) coil device with two or more overlapping coil windings within a casing. The mTMS coil device is capable of adjusting parameters of the stimulation of magnetic and induced electric fields through the selective control of the multiple coil windings within the mTMS coil device. Additionally, provided are methods of operation including navigated TMS for adjusting parameters such as location, direction and/or orientation of magnetic and induced electric fields from mTMS coil devices.
    Type: Application
    Filed: June 3, 2014
    Publication date: December 4, 2014
    Applicant: Nexstim Oy
    Inventors: Risto Ilmoniemi, Lari Koponen, Jaakko Nieminen, Gustaf Järnefelt
  • Publication number: 20130338483
    Abstract: The present invention relates to the field of mapping cognitive brain functions, more specifically to non-invasive systems for and methods of cognitive mapping. Examples of cognitive brain function which can reliably be mapped according to embodiments of the present invention are speech, language, working-memory and decision-making. According to certain embodiments, navigated Transcranial Magnetic Stimulation (TMS) is utilized along with accurate baseline determination in order to provide accurate, non-invasive cognitive mapping.
    Type: Application
    Filed: March 5, 2012
    Publication date: December 19, 2013
    Applicant: NEXSTIM OY
    Inventors: Tuomas Neuvonen, Henri Hannula, Gustaf Jarnefelt
  • Patent number: 8186347
    Abstract: A patient breathing system includes a ventilator that provides a driving gas flow to generate patient inspiration. The ventilator further includes a gas inlet for driving gas, the patient breathing system being connectable to a circle which includes an inspiratory hose and an expiratory hose connected to patient, through which circle expired gases can be circulated back to the patient. The circle further includes a fresh gas inlet, an arrangement for enabling the gas flow in a desired direction, a unit for removal of the exhaled carbon dioxide, and a ventilator port for the ventilator connection. The patient breathing system further includes an arrangement by which driving gas of the ventilator has been separated from the patient gases flowing in the circle.
    Type: Grant
    Filed: June 20, 2008
    Date of Patent: May 29, 2012
    Assignee: General Electric Company
    Inventors: Tom Jakob Haggblom, Gustaf Jarnefelt
  • Publication number: 20090000621
    Abstract: A patient breathing system includes a ventilator that provides a driving gas flow to generate patient inspiration. The ventilator further includes a gas inlet for driving gas, the patient breathing system being connectable to a circle which includes an inspiratory hose and an expiratory hose connected to patient, through which circle expired gases can be circulated back to the patient. The circle further includes a fresh gas inlet, an arrangement for enabling the gas flow in a desired direction, a unit for removal of the exhaled carbon dioxide, and a ventilator port for the ventilator connection. The patient breathing system further includes an arrangement by which driving gas of the ventilator has been separated from the patient gases flowing in the circle.
    Type: Application
    Filed: June 20, 2008
    Publication date: January 1, 2009
    Inventors: Tom Jakob Haggblom, Gustaf Jarnefelt
  • Patent number: 6213120
    Abstract: A detector for determining the volume and volumetric changes of respiratory gases in a closed circuit anaesthesia circuit having a bellows ventilator. The device includes a first sensor positioned with respect to the bellows for detecting and indicating when the bellows assumes a given expanded position in a bellows housing indicative of the given volume of respiratory gas in the circuit. A second sensor detects and indicates when the bellows assumes an expanded position indicative of the greater amount of expansion than that corresponding to the given expanded position. During respiratory cycles of the patient, indications from the first sensor in the absence of indications from the second sensor indicates that the volume of gas in the closed circuit anaesthesia circuit is not changing, but is remaining at that corresponding to the given expanded position of the bellows.
    Type: Grant
    Filed: August 21, 1997
    Date of Patent: April 10, 2001
    Assignee: Instrumentarium Corporation
    Inventors: Frank E. Block, Gustaf Järnefelt
  • Patent number: 5627321
    Abstract: A method of straining a diaphragm and a device therefor. The diaphragm (3) is placed between two preferably ring-shaped frame parts (1, 2). In addition at least between one frame part (1, 2) and the diaphragm (3) is placed a resilient body (4), which touches the frame parts when they are pressed against each other.
    Type: Grant
    Filed: June 19, 1995
    Date of Patent: May 6, 1997
    Assignee: Instrumentarium Corporation
    Inventors: Jukka Korhonen, Gustaf Jarnefelt