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).
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Publication number: 20200188646Abstract: 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: ApplicationFiled: February 25, 2020Publication date: June 18, 2020Applicant: MINNETRONIX, INC.Inventors: ABHI VASE, DON W.E. EVANS
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Patent number: 10569064Abstract: 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: GrantFiled: October 6, 2016Date of Patent: February 25, 2020Assignee: MINNETRONIX, INC.Inventors: Abhi Vase, Don W. E. Evans
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Patent number: 9907892Abstract: 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: GrantFiled: March 4, 2011Date of Patent: March 6, 2018Assignee: Minnetronix Inc.Inventors: Kenneth E. Broen, Corey D. Brown, Don W. E. Evans, David J. Hansen, Anne F. Mickelson, Richard A. Nazarian
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Publication number: 20170095649Abstract: 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: ApplicationFiled: October 6, 2016Publication date: April 6, 2017Inventors: Abhi Vase, Don W.E. Evans
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Patent number: 9162017Abstract: 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: GrantFiled: August 21, 2012Date of Patent: October 20, 2015Assignee: MINNETRONIX, INC.Inventors: Don W. E. Evans, Mark Schneider, Douglas Wahnschaffe, Scott Klimek, Reed Houge
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Patent number: 8956275Abstract: 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: GrantFiled: June 16, 2014Date of Patent: February 17, 2015Assignee: Minnetronix Inc.Inventors: Nathan J. Bolyard, Don W. E. Evans, Thomas P. Sutera
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Patent number: 8858454Abstract: 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: GrantFiled: July 13, 2011Date of Patent: October 14, 2014Assignee: 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
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Publication number: 20140296614Abstract: 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: ApplicationFiled: June 16, 2014Publication date: October 2, 2014Inventors: Nathan J. Bolyard, Don W. E. Evans, Thomas P. Sutera
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Patent number: 8849398Abstract: 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: GrantFiled: March 15, 2013Date of Patent: September 30, 2014Assignee: Minnetronix, Inc.Inventor: Don W. E. Evans
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Patent number: 8753256Abstract: 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: GrantFiled: October 11, 2013Date of Patent: June 17, 2014Assignee: Minnetronix Inc.Inventors: Nathan J. Bolyard, Don W. E. Evans, Thomas P. Sutera
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Patent number: 8734331Abstract: 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: GrantFiled: August 21, 2012Date of Patent: May 27, 2014Assignee: Minnetronix, Inc.Inventors: Don W. E. Evans, Jeremy John Maniak
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Publication number: 20140103842Abstract: 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: ApplicationFiled: October 11, 2013Publication date: April 17, 2014Applicant: Minnetronix, Inc.Inventors: Nathan J. Bolyard, Don W. E. Evans, Thomas P. Sutera
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Patent number: 8700151Abstract: 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: GrantFiled: March 15, 2013Date of Patent: April 15, 2014Assignee: Minnetronix, Inc.Inventor: Don W. E. Evans
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Patent number: 8585571Abstract: 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: GrantFiled: March 4, 2011Date of Patent: November 19, 2013Assignee: Minnetronix Inc.Inventors: Timothy A. Bachman, Nathan J. Bolyard, Corey D. Brown, Don W. E. Evans, Michael A. Knipfer, Richard A. Nazarian
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Publication number: 20130303831Abstract: 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: ApplicationFiled: March 15, 2013Publication date: November 14, 2013Applicant: Minnetronix, Inc.Inventor: Don W.E. Evans
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Patent number: 8556795Abstract: 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: GrantFiled: March 4, 2011Date of Patent: October 15, 2013Assignee: Minnetronix Inc.Inventors: Nathan J. Bolyard, Don W. E. Evans, Thomas P. Sutera
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Publication number: 20130085319Abstract: 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: ApplicationFiled: August 21, 2012Publication date: April 4, 2013Inventors: Don W. E. Evans, Jeremy John Maniak
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Publication number: 20130053623Abstract: 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: ApplicationFiled: August 21, 2012Publication date: February 28, 2013Inventors: Don W.E Evans, Mark Schneider, Douglas Wahnschaffe, Scott Klimek, Reed Houge
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Publication number: 20120130153Abstract: 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: ApplicationFiled: March 4, 2011Publication date: May 24, 2012Applicant: Minnetronix Inc.Inventors: Nathan J. Bolyard, Don W. E. Evans, Thomas P. Sutera
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Publication number: 20120004519Abstract: 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: ApplicationFiled: July 13, 2011Publication date: January 5, 2012Applicant: 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