Patents Assigned to Mainstay Medical Limited
  • Patent number: 9999763
    Abstract: Apparatus for neuromuscular electrical stimulation and methods for anchoring the same are provided. The apparatus may include an elongated member having one or more electrodes disposed at the distal region of the elongated member and at least one fixation element disposed at the distal region of the elongated member. The fixation element may be shaped and sized to be deployed between tissue layers, such as muscle layers, without damaging the tissue layers so as to secure the one or more electrodes in or adjacent to a desired anatomical site within a patient. An additional fixation element may be disposed at the distal region of the elongated member so that tissue, such as a muscle, may be sandwiched between the fixation elements without damaging the tissue.
    Type: Grant
    Filed: March 12, 2013
    Date of Patent: June 19, 2018
    Assignee: Mainstay Medical Limited
    Inventors: Jason Alan Shiroff, Henry Thomas Demorett, Prashant Brijmohansingh Rawat, Johannes Petrus Heemels, Peter Andrew Crosby
  • Patent number: 9981122
    Abstract: A system of implanting electrode leads for restoring muscle function to the lumbar spine to treat low back pain is provided. The system provides efficient implantation of the leads, including the ability to verify deployment of anchoring mechanisms on the lead using an impedance assessment, such that the implanted lead may be secured within the patient and used to restore muscle function of local segmental muscles associated with the lumbar spine stabilization system.
    Type: Grant
    Filed: November 12, 2015
    Date of Patent: May 29, 2018
    Assignee: Mainstay Medical Limited
    Inventors: Prashant Brijmohansingh Rawat, Henry Thomas Demorett, Jason Alan Shiroff
  • Patent number: 9950159
    Abstract: A system for restoring muscle function to the lumbar spine to treat low back pain is provided. The system may include one or more electrode leads coupled to an implantable pulse generator (IPG) and a tunneler system for subcutaneously implanting a proximal portion of the lead(s). The system may also include a handheld activator configured to transfer a stimulation command to the IPG, and an external programmer configured to transfer programming data to the IPG. The stimulation command directs the programmable controller to stimulate the tissue in accordance with the programming data. The system may include a software-based programming system run on a computer such that the treating physician may program and adjust stimulation parameters.
    Type: Grant
    Filed: July 5, 2016
    Date of Patent: April 24, 2018
    Assignee: Mainstay Medical Limited
    Inventors: John Beck, Jason Skubitz, Peter Crosby, Henry DeMorett, Jason Alan Shiroff
  • Publication number: 20180008311
    Abstract: Systems and methods for enhanced implantation of an electrode lead for neuromuscular electrical stimulation of tissue associated with control of the lumbar spine for treatment of back pain, in a midline-to-lateral manner are provided. The implanted lead may be secured within the patient and used to restore muscle function of local segmental muscles associated with the lumbar spine stabilization system without disruption of the electrode lead post-implantation due to anatomical structures.
    Type: Application
    Filed: July 5, 2016
    Publication date: January 11, 2018
    Applicant: Mainstay Medical Limited
    Inventors: Jason Alan SHIROFF, Henry DEMORETT, John BECK, Sidney HAUSCHILD
  • Patent number: 9861811
    Abstract: Apparatus and methods for treating back pain are provided in which electrical stimulation therapy is designed to cause muscle contraction to rehabilitate the muscle, restore neural drive and restore spinal stability. In accordance with one aspect, electrical stimulation is applied through at least one electrode to stimulate efferent motor nerve fibers to cause muscle contraction to facilitate rehabilitation without targeting stimulation of afferent nerve fibers. In accordance with another aspect, a stimulator further includes one or more of a number of additional therapeutic modalities, including a module that provides analgesic stimulation; a module that monitors muscle performance and adjusts the muscle stimulation regime; and/or a module that provides longer term pain relief by selectively and repeatedly ablating nerve fibers.
    Type: Grant
    Filed: September 9, 2015
    Date of Patent: January 9, 2018
    Assignee: Mainstay Medical Limited
    Inventors: Peter Andrew Crosby, Dan Sachs, Prashant Brijmohansingh Rawat, Jason Alan Shiroff, Johannes Petrus Heemels
  • Publication number: 20170036025
    Abstract: A system for restoring muscle function to the lumbar spine to treat low back pain is provided. The system may include electrodes coupled to an implantable pulse generator (IPG), a handheld activator configured to transfer a stimulation command to the IPG, and an external programmer configured to transfer programming data to the IPG. The stimulation command directs the programmable controller to stimulate the tissue in accordance with the programming data. The system may include a software-based programming system run on a computer such that the treating physician may program and adjust stimulation parameters.
    Type: Application
    Filed: October 20, 2016
    Publication date: February 9, 2017
    Applicant: MAINSTAY MEDICAL LIMITED
    Inventors: Dan SACHS, Prashant Brijmohansingh RAWAT, Jason Alan SHIROFF, Peter Andrew CROSBY
  • Publication number: 20160310732
    Abstract: A system for restoring muscle function to the lumbar spine to treat low back pain is provided. The system may include one or more electrode leads coupled to an implantable pulse generator (IPG) and a tunneler system for subcutaneously implanting a proximal portion of the lead(s). The system may also include a handheld activator configured to transfer a stimulation command to the IPG, and an external programmer configured to transfer programming data to the IPG. The stimulation command directs the programmable controller to stimulate the tissue in accordance with the programming data. The system may include a software-based programming system run on a computer such that the treating physician may program and adjust stimulation parameters.
    Type: Application
    Filed: July 5, 2016
    Publication date: October 27, 2016
    Applicant: MAINSTAY MEDICAL LIMITED
    Inventors: John BECK, Jason SKUBITZ, Peter CROSBY, Henry DEMORETT, Jason Alan SHIROFF
  • Patent number: 9474906
    Abstract: A system for restoring muscle function to the lumbar spine to treat low back pain is provided. The system may include electrodes coupled to an implantable pulse generator (IPG), a handheld activator configured to transfer a stimulation command to the IPG, and an external programmer configured to transfer programming data to the IPG. The stimulation command directs the programmable controller to stimulate the tissue in accordance with the programming data. The system may include a software-based programming system run on a computer such that the treating physician may program and adjust stimulation parameters.
    Type: Grant
    Filed: July 6, 2015
    Date of Patent: October 25, 2016
    Assignee: Mainstay Medical Limited
    Inventors: Dan Sachs, Prashant Brijmohansingh Rawat, Jason Alan Shiroff, Peter Andrew Crosby
  • Publication number: 20160106994
    Abstract: System and method for rehabilitating a muscle and monitoring such rehabilitation are provided, the system including a user input receiver for receiving stimulation parameter inputs from a user, a stimulator for generating stimulations to be applied to a patient's body based on the stimulation parameter inputs, a signal receiver to receive, detect, and record a signal containing an evoked potential generated by the body in response to the stimulations, a signal processor for processing the recorded signal, for example, by amplifying, filtering, digitizing and temporal averaging the recorded signal, a trigger detector to alert the signal processor module when stimulations are generated to enable synchronization of the response signal with the stimulus for accurate temporal averaging, and an output display for providing data representative of the evoked potential to the user.
    Type: Application
    Filed: October 13, 2015
    Publication date: April 21, 2016
    Applicant: MAINSTAY MEDICAL LIMITED
    Inventors: Peter A. CROSBY, Kristen N. JAAX, Prashant B. RAWAT
  • Publication number: 20160067476
    Abstract: A system of implanting electrode leads for restoring muscle function to the lumbar spine to treat low back pain is provided. The system provides efficient implantation of the leads, including the ability to verify deployment of anchoring mechanisms on the lead using an impedance assessment, such that the implanted lead may be secured within the patient and used to restore muscle function of local segmental muscles associated with the lumbar spine stabilization system.
    Type: Application
    Filed: November 12, 2015
    Publication date: March 10, 2016
    Applicant: MAINSTAY MEDICAL LIMITED
    Inventors: Prashant Brijmohansingh RAWAT, Henry Thomas DEMORETT, Jason Alan SHIROFF
  • Patent number: 9248278
    Abstract: Apparatus and methods for treating back pain are provided, in which an implantable stimulator is configured to communicate with an external control system, the implantable stimulator providing a neuromuscular electrical stimulation therapy designed to cause muscle contraction to rehabilitate the muscle, restore neural drive and restore spinal stability; the implantable stimulator further including one or more of a number of additional therapeutic modalities, including a module that provides analgesic stimulation; a module that monitors muscle performance and adjusts the muscle stimulation regime; and/or a module that provides longer term pain relief by selectively and repeatedly ablating nerve fibers. In an alternative embodiment, a standalone implantable RF ablation system is described.
    Type: Grant
    Filed: March 10, 2011
    Date of Patent: February 2, 2016
    Assignee: Mainstay Medical Limited
    Inventors: Peter Andrew Crosby, Dan Sachs, Prashant Brijmohansingh Rawat, Jason Alan Shiroff, Johannes Petrus Heemels
  • Publication number: 20150374992
    Abstract: Apparatus and methods for treating back pain are provided, in which an implantable stimulator is configured to communicate with an external control system, the implantable stimulator providing a neuromuscular electrical stimulation therapy designed to cause muscle contraction to rehabilitate the muscle, restore neural drive and restore spinal stability; the implantable stimulator further including one or more of a number of additional therapeutic modalities, including a module that provides analgesic stimulation; a module that monitors muscle performance and adjusts the muscle stimulation regime; and/or a module that provides longer term pain relief by selectively and repeatedly ablating nerve fibers. In an alternative embodiment, a standalone implantable RF ablation system is described.
    Type: Application
    Filed: September 9, 2015
    Publication date: December 31, 2015
    Applicant: MAINSTAY MEDICAL LIMITED
    Inventors: Peter Andrew CROSBY, Dan SACHS, Prashant Brijmohansingh RAWAT, Jason Alan SHIROFF, Johannes Petrus HEEMELS
  • Patent number: 9186501
    Abstract: A system of implanting electrode leads for restoring muscle function to the lumbar spine to treat low back pain is provided. The system provides efficient implantation of the leads, including the ability to verify deployment of anchoring mechanisms on the lead using an impedance assessment, such that the implanted lead may be secured within the patient and used to restore muscle function of local segmental muscles associated with the lumbar spine stabilization system.
    Type: Grant
    Filed: June 3, 2014
    Date of Patent: November 17, 2015
    Assignee: Mainstay Medical Limited
    Inventors: Prashant Brijmohansingh Rawat, Henry Thomas Demorett, Jason Alan Shiroff
  • Publication number: 20150306405
    Abstract: A system for restoring muscle function to the lumbar spine to treat low back pain is provided. The system may include electrodes coupled to an implantable pulse generator (IPG), a handheld activator configured to transfer a stimulation command to the IPG, and an external programmer configured to transfer programming data to the IPG. The stimulation command directs the programmable controller to stimulate the tissue in accordance with the programming data. The system may include a software-based programming system run on a computer such that the treating physician may program and adjust stimulation parameters.
    Type: Application
    Filed: July 6, 2015
    Publication date: October 29, 2015
    Applicant: MAINSTAY MEDICAL LIMITED
    Inventors: Dan SACHS, Prashant Brijmohansingh RAWAT, Jason Alan SHIROFF, Peter Andrew CROSBY
  • Patent number: 9108053
    Abstract: Apparatus and methods for rehabilitating a muscle are provided including one or more electrodes configured to be positioned in or adjacent to tissue, one or more sensors configured to sense muscle contraction and to generate a sensor signal based on the muscle contraction, and a pulse generator operatively coupled to the one or more electrodes, e.g., via a lead, and having a controller configured to receive the sensor signal and to adjust the stimulation frequency based on the sensor signal to cause the muscle to contract where muscle contraction is smooth and continuous.
    Type: Grant
    Filed: December 18, 2012
    Date of Patent: August 18, 2015
    Assignee: Mainstay Medical Limited
    Inventors: Peter Andrew Crosby, Prashant Brijmohansingh Rawat
  • Patent number: 9079019
    Abstract: Apparatus and methods for tethering an electrode lead to an anatomical structure within a patient using a coupling member are provided. An anchor configured to be secured to the anatomical structure and an electrode lead suitable for neuromuscular stimulation of spinal muscles and/or nerves innervating one or more muscles that contribute to spine stability may be used. The electrode lead is configured to be coupled to the anchor via the coupling member by securing a first end of the coupling member to the electrode lead and securing a second end of the coupling member to an eyelet of the anchor to place the electrode lead at a desired anatomical site within the patient.
    Type: Grant
    Filed: August 1, 2012
    Date of Patent: July 14, 2015
    Assignee: Mainstay Medical Limited
    Inventors: Peter Andrew Crosby, Choll Kim, Jason Alan Shiroff, Prashant Brijmohansingh Rawat, Dan Sachs
  • Patent number: 9072897
    Abstract: A system for restoring muscle function to the lumbar spine to treat low back pain is provided. The system may include electrodes coupled to an implantable pulse generator (IPG), a handheld activator configured to transfer a stimulation command to the IPG, and an external programmer configured to transfer programming data to the IPG. The stimulation command directs the programmable controller to stimulate the tissue in accordance with the programming data. The system may include a software-based programming system run on a computer such that the treating physician may program and adjust stimulation parameters.
    Type: Grant
    Filed: October 23, 2013
    Date of Patent: July 7, 2015
    Assignee: Mainstay Medical Limited
    Inventors: Dan Sachs, Prashant Brijmohansingh Rawat, Jason Alan Shiroff, Peter Andrew Crosby
  • Publication number: 20140350653
    Abstract: An apparatus for neuromuscular electrical stimulation is provided. The apparatus may be a stimulation lead having an elongated member made up of at least one conductor and an insulative sheath surrounding at least a portion of the conductor. A distal portion of the elongated member may include one or more electrodes and at least one fixation element to secure the one or more electrodes in or adjacent to a desired anatomical site for providing stimulation thereto. The stimulation lead has a strain relief portion on the proximal side of the one or more electrodes, configured to reduce axial forces on the distal region of the elongated member, and the effects thereof, to reduce the risk of, or even prevent, displacement of the one or more electrodes and to accommodate localized flexural motion. The apparatus also may include at least one fixation element sized and configured to be deployed between muscle layers to maintain the electrode position at the stimulation site.
    Type: Application
    Filed: August 6, 2014
    Publication date: November 27, 2014
    Applicant: MAINSTAY MEDICAL LIMITED
    Inventors: Jason Alan SHIROFF, Jason John SKUBITZ, Prashant Brijmohansingh RAWAT
  • Publication number: 20140288616
    Abstract: A system of implanting electrode leads for restoring muscle function to the lumbar spine to treat low back pain is provided. The system provides efficient implantation of the leads, including the ability to verify deployment of anchoring mechanisms on the lead using an impedance assessment, such that the implanted lead may be secured within the patient and used to restore muscle function of local segmental muscles associated with the lumbar spine stabilization system.
    Type: Application
    Filed: June 3, 2014
    Publication date: September 25, 2014
    Applicant: MAINSTAY MEDICAL LIMITED
    Inventors: Prashant Brijmohansingh RAWAT, Henry Thomas DEMORETT, Jason Alan SHIROFF
  • Publication number: 20140058476
    Abstract: Apparatus and methods for rehabilitating a muscle are provided including one or more electrodes configured to be positioned in or adjacent to tissue, one or more sensors configured to sense muscle contraction and to generate a sensor signal based on the muscle contraction, and a pulse generator operatively coupled to the one or more electrodes, e.g., via a lead, and having a controller configured to receive the sensor signal and to adjust the stimulation frequency based on the sensor signal to cause the muscle to contract where muscle contraction is smooth and continuous.
    Type: Application
    Filed: December 18, 2012
    Publication date: February 27, 2014
    Applicant: Mainstay Medical Limited
    Inventors: Peter Andrew CROSBY, Prashant Brijmohansingh Rawat