Patents by Inventor Don W. E. Evans

Don W. E. Evans 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: 20200188646
    Abstract: Systems and methods for systems and methods for focal cooling of the brain and spinal cord are disclosed. Some embodiments may be directed to a neuroprotection system that includes a cerebrospinal fluid processing platform. Embodiments may provide rapid and selective spinal cord hypothermia and drainage. Embodiments may be tailored to selective spinal cord cooling, pressure monitoring and automated drainage. Embodiments may enable local hypothermic neuroprotection, limit the stress of systemic cooling, minimize secondary neuronal damage and achieve maximal neuroprotection while at the same time improving workflow as a result of automated drainage. Embodiments may to include a multi-lumen catheter, a drainage collection reservoir bag, a pump to circulate coolant, sensor hardware and controllers to modulate the flow of a heat transfer fluid for cooling to modulate therapeutic hypothermia and re-warming. Certain embodiments may include extracorporeal cooling of cerebrospinal fluid (CSF).
    Type: Application
    Filed: February 25, 2020
    Publication date: June 18, 2020
    Applicant: MINNETRONIX, INC.
    Inventors: ABHI VASE, DON W.E. EVANS
  • Patent number: 10569064
    Abstract: Systems and methods for systems and methods for focal cooling of the brain and spinal cord are disclosed. Some embodiments may be directed to a neuroprotection system that includes a cerebrospinal fluid processing platform. Embodiments may provide rapid and selective spinal cord hypothermia and drainage. Embodiments may be tailored to selective spinal cord cooling, pressure monitoring and automated drainage. Embodiments may enable local hypothermic neuroprotection, limit the stress of systemic cooling, minimize secondary neuronal damage and achieve maximal neuroprotection while at the same time improving workflow as a result of automated drainage. Embodiments may include a multi-lumen catheter, a drainage collection reservoir bag, a pump to circulate coolant, sensor hardware and controllers to modulate the flow of a heat transfer fluid for cooling to modulate therapeutic hypothermia and re-warming. Certain embodiments may include extracorporeal cooling of cerebrospinal fluid (CSF).
    Type: Grant
    Filed: October 6, 2016
    Date of Patent: February 25, 2020
    Assignee: MINNETRONIX, INC.
    Inventors: Abhi Vase, Don W. E. Evans
  • Patent number: 9907892
    Abstract: A portable external device for a mechanical circulation support system includes first and second power sources, e.g. batteries and control electronics for redundant uninterrupted operation of an implantable blood pump. The control and power source module may be configured for variable form factors to accommodate a variety of wearable configurations for patient convenience and comfort.
    Type: Grant
    Filed: March 4, 2011
    Date of Patent: March 6, 2018
    Assignee: Minnetronix Inc.
    Inventors: Kenneth E. Broen, Corey D. Brown, Don W. E. Evans, David J. Hansen, Anne F. Mickelson, Richard A. Nazarian
  • Publication number: 20170095649
    Abstract: Systems and methods for systems and methods for focal cooling of the brain and spinal cord are disclosed. Some embodiments may be directed to a neuroprotection system that includes a cerebrospinal fluid processing platform. Embodiments may provide rapid and selective spinal cord hypothermia and drainage. Embodiments may be tailored to selective spinal cord cooling, pressure monitoring and automated drainage. Embodiments may enable local hypothermic neuroprotection, limit the stress of systemic cooling, minimize secondary neuronal damage and achieve maximal neuroprotection while at the same time improving workflow as a result of automated drainage. Embodiments may include a multi-lumen catheter, a drainage collection reservoir bag, a pump to circulate coolant, sensor hardware and controllers to modulate the flow of a heat transfer fluid for cooling to modulate therapeutic hypothermia and re-warming. Certain embodiments may include extracorporeal cooling of cerebrospinal fluid (CSF).
    Type: Application
    Filed: October 6, 2016
    Publication date: April 6, 2017
    Inventors: Abhi Vase, Don W.E. Evans
  • Patent number: 9162017
    Abstract: A pump for inducing flow within a vascular system comprises a cannula having a first configuration for deployment within the vascular system and a second configuration for directing the fluid flow within the vascular system, where the second configuration has a greater diameter than the first configuration. An impeller is configured to induce the fluid flow by rotation about an axis. The impeller has a first radius in the first configuration and a second radius in the second configuration, where the second radius is greater than the first radius.
    Type: Grant
    Filed: August 21, 2012
    Date of Patent: October 20, 2015
    Assignee: MINNETRONIX, INC.
    Inventors: Don W. E. Evans, Mark Schneider, Douglas Wahnschaffe, Scott Klimek, Reed Houge
  • Patent number: 8956275
    Abstract: A portable external device for a mechanical circulation support system includes first and second power sources, e.g. batteries and control electronics for redundant uninterrupted operation of an implantable blood pump. The control and power source module may be configured to accommodate a variety of wearable configurations for patient convenience and comfort.
    Type: Grant
    Filed: June 16, 2014
    Date of Patent: February 17, 2015
    Assignee: Minnetronix Inc.
    Inventors: Nathan J. Bolyard, Don W. E. Evans, Thomas P. Sutera
  • Patent number: 8858454
    Abstract: A pulse rate sensor that includes an accelerometer for measuring periodic motion and a piezo sensor for detecting erratic motion is capable of more accurately determining pulse rate by accounting for these types of motion. The pulse rate sensor in accordance with the present invention diminishes pulse rate signal degradation due to erratic motion through a combination of algorithms that control signal boosting, waveform refinement and signal noise suppression.
    Type: Grant
    Filed: July 13, 2011
    Date of Patent: October 14, 2014
    Assignee: Basis Science, Inc.
    Inventors: Richard A. Nazarian, Lori E. Lucke, Susan S. Alfini, Mark J. Bina, Don W. E. Evans, Paul Harris, Michael W. Geatz
  • Publication number: 20140296614
    Abstract: A portable external device for a mechanical circulation support system includes first and second power sources, e.g. batteries and control electronics for redundant uninterrupted operation of an implantable blood pump. The control and power source module may be configured to accommodate a variety of wearable configurations for patient convenience and comfort.
    Type: Application
    Filed: June 16, 2014
    Publication date: October 2, 2014
    Inventors: Nathan J. Bolyard, Don W. E. Evans, Thomas P. Sutera
  • Patent number: 8849398
    Abstract: A pump for inducing flow within a vascular system comprises two inlets. The pump has a first configuration for deployment within the vascular system and a second, operable configuration for directing the fluid flow within the vascular system, where the second configuration has a greater diameter than the first configuration. A centrifugal impeller is configured to induce the fluid flow by rotation about an axis of rotation, where the flow is in a direction generally transverse to the impeller's axis of rotation.
    Type: Grant
    Filed: March 15, 2013
    Date of Patent: September 30, 2014
    Assignee: Minnetronix, Inc.
    Inventor: Don W. E. Evans
  • Patent number: 8753256
    Abstract: A portable external device for a mechanical circulation support system includes first and second power sources, e.g. batteries and control electronics for redundant uninterrupted operation of an implantable blood pump. The control and power source module may be configured to accommodate a variety of wearable configurations for patient convenience and comfort.
    Type: Grant
    Filed: October 11, 2013
    Date of Patent: June 17, 2014
    Assignee: Minnetronix Inc.
    Inventors: Nathan J. Bolyard, Don W. E. Evans, Thomas P. Sutera
  • Patent number: 8734331
    Abstract: A pump for inducing motion of a fluid, the pump including a cannula adjustable between an operable configuration having a first diameter and a deployment configuration having a substantially smaller second diameter. An impeller is rotatable within the cannula about an axis. The impeller includes an at least semi-rigid support for a flexible web, and is positionable with respect to the cannula the operable configuration and the deployment configuration, the operable configuration extending the web to a first radial distance from the axis and the deployment configuration collapsing the web to a second substantially smaller radial distance from the axis.
    Type: Grant
    Filed: August 21, 2012
    Date of Patent: May 27, 2014
    Assignee: Minnetronix, Inc.
    Inventors: Don W. E. Evans, Jeremy John Maniak
  • Publication number: 20140103842
    Abstract: A portable external device for a mechanical circulation support system includes first and second power sources, e.g. batteries and control electronics for redundant uninterrupted operation of an implantable blood pump. The control and power source module may be configured to accommodate a variety of wearable configurations for patient convenience and comfort.
    Type: Application
    Filed: October 11, 2013
    Publication date: April 17, 2014
    Applicant: Minnetronix, Inc.
    Inventors: Nathan J. Bolyard, Don W. E. Evans, Thomas P. Sutera
  • Patent number: 8700151
    Abstract: A pump for inducing flow within a vascular system comprises two inlets. The pump has a first configuration for deployment within the vascular system and a second, operable configuration for directing the fluid flow within the vascular system, where the second configuration has a greater diameter than the first configuration. A centrifugal impeller is configured to induce the fluid flow by rotation about an axis of rotation, where the flow is in a direction generally transverse to the impeller's axis of rotation.
    Type: Grant
    Filed: March 15, 2013
    Date of Patent: April 15, 2014
    Assignee: Minnetronix, Inc.
    Inventor: Don W. E. Evans
  • Patent number: 8585571
    Abstract: A portable external device for a mechanical circulation support system includes first and second power sources, e.g. batteries and control electronics for redundant uninterrupted operation of an implantable blood pump. The control and power source module may be configured to accommodate a variety of wearable configurations for patient convenience and comfort.
    Type: Grant
    Filed: March 4, 2011
    Date of Patent: November 19, 2013
    Assignee: Minnetronix Inc.
    Inventors: Timothy A. Bachman, Nathan J. Bolyard, Corey D. Brown, Don W. E. Evans, Michael A. Knipfer, Richard A. Nazarian
  • Publication number: 20130303831
    Abstract: A pump for inducing flow within a vascular system comprises two inlets. The pump has a first configuration for deployment within the vascular system and a second, operable configuration for directing the fluid flow within the vascular system, where the second configuration has a greater diameter than the first configuration. A centrifugal impeller is configured to induce the fluid flow by rotation about an axis of rotation, where the flow is in a direction generally transverse to the impeller's axis of rotation.
    Type: Application
    Filed: March 15, 2013
    Publication date: November 14, 2013
    Applicant: Minnetronix, Inc.
    Inventor: Don W.E. Evans
  • Patent number: 8556795
    Abstract: A portable external device for a mechanical circulation support system includes first and second power sources, e.g. batteries and control electronics for redundant uninterrupted operation of an implantable blood pump. The control and power source module may be configured to accommodate a variety of wearable configurations for patient convenience and comfort.
    Type: Grant
    Filed: March 4, 2011
    Date of Patent: October 15, 2013
    Assignee: Minnetronix Inc.
    Inventors: Nathan J. Bolyard, Don W. E. Evans, Thomas P. Sutera
  • Publication number: 20130085319
    Abstract: A pump for inducing motion of a fluid, the pump including a cannula adjustable between an operable configuration having a first diameter and a deployment configuration having a substantially smaller second diameter. An impeller is rotatable within the cannula about an axis. The impeller includes an at least semi-rigid support for a flexible web, and is positionable with respect to the cannula the operable configuration and the deployment configuration, the operable configuration extending the web to a first radial distance from the axis and the deployment configuration collapsing the web to a second substantially smaller radial distance from the axis.
    Type: Application
    Filed: August 21, 2012
    Publication date: April 4, 2013
    Inventors: Don W. E. Evans, Jeremy John Maniak
  • Publication number: 20130053623
    Abstract: A pump for inducing flow within a vascular system comprises a cannula having a first configuration for deployment within the vascular system and a second configuration for directing the fluid flow within the vascular system, where the second configuration has a greater diameter than the first configuration. An impeller is configured to induce the fluid flow by rotation about an axis. The impeller has a first radius in the first configuration and a second radius in the second configuration, where the second radius is greater than the first radius.
    Type: Application
    Filed: August 21, 2012
    Publication date: February 28, 2013
    Inventors: Don W.E Evans, Mark Schneider, Douglas Wahnschaffe, Scott Klimek, Reed Houge
  • Publication number: 20120130153
    Abstract: A portable external device for a mechanical circulation support system includes first and second power sources, e.g. batteries and control electronics for redundant uninterrupted operation of an implantable blood pump. The control and power source module may be configured to accommodate a variety of wearable configurations for patient convenience and comfort.
    Type: Application
    Filed: March 4, 2011
    Publication date: May 24, 2012
    Applicant: Minnetronix Inc.
    Inventors: Nathan J. Bolyard, Don W. E. Evans, Thomas P. Sutera
  • Publication number: 20120004519
    Abstract: A pulse rate sensor that includes an accelerometer for measuring periodic motion and a piezo sensor for detecting erratic motion is capable of more accurately determining pulse rate by accounting for these types of motion. The pulse rate sensor in accordance with the present invention diminishes pulse rate signal degradation due to erratic motion through a combination of algorithms that control signal boosting, waveform refinement and signal noise suppression.
    Type: Application
    Filed: July 13, 2011
    Publication date: January 5, 2012
    Applicant: PULSE TRACER, INC.
    Inventors: Richard A. Nazarian, Lori E. Lucke, Susan S. Alfini, Mark J. Bina, Don W. E. Evans, Paul Harris, Michael W. Geatz