Patents by Inventor Craig W. Irwin
Craig W. Irwin 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: 20230310188Abstract: A medical device frame including an undulating frame element defining a series of peaks each defining a longitudinal splay angle, circumferential cant angle, or combinations thereof. In some examples, the series of peaks are non-overlapping when the frame is in an expanded configuration and overlap when the frame is in the collapsed configuration. The longitudinal splay angle and/or circumferential cant angle may remain relatively unchanged between the expanded and collapsed configurations (e.g., within about 15%).Type: ApplicationFiled: June 6, 2023Publication date: October 5, 2023Inventors: Craig W. Irwin, James D. Silverman, Tyson J. Skelton
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Patent number: 11712353Abstract: A medical device frame including an undulating frame element defining a series of peaks each defining a longitudinal splay angle, circumferential cant angle, or combinations thereof. In some examples, the series of peaks are non-overlapping when the frame is in an expanded configuration and overlap when the frame is in the collapsed configuration. The longitudinal splay angle and/or circumferential cant angle may remain relatively unchanged between the expanded and collapsed configurations (e.g., within about 15%).Type: GrantFiled: April 30, 2019Date of Patent: August 1, 2023Assignee: W. L. Gore & Associates, Inc.Inventors: Craig W. Irwin, James D. Silverman, Tyson J. Skelton
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Publication number: 20230104877Abstract: An implantable device delivery system is disclosed. The delivery system includes a constraining member situated between an interior layer and an exterior layer of a cover. The interior layer of the cover is disposed about an implantable medical device, and the exterior layer of the cover extends over a portion of the interior layer. The cover is generally tapered to minimize deployment forces. The constraining member is disposed about a portion of the interior layer and operates to constrain the implantable device to a delivery configuration. The cover and the constraining member are generally configured to be removed concurrently during deployment of the implantable device.Type: ApplicationFiled: December 12, 2022Publication date: April 6, 2023Inventors: Evan Honeyfield, Craig W. Irwin, Jacob B. Munger, Tyson J. Skelton
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Patent number: 11540933Abstract: An implantable device delivery system is disclosed. The delivery system includes a constraining member situated between an interior layer and an exterior layer of a cover. The interior layer of the cover is disposed about an implantable medical device, and the exterior layer of the cover extends over a portion of the interior layer. The cover is generally tapered to minimize deployment forces. The constraining member is disposed about a portion of the interior layer and operates to constrain the implantable device to a delivery configuration. The cover and the constraining member are generally configured to be removed concurrently during deployment of the implantable device.Type: GrantFiled: October 10, 2018Date of Patent: January 3, 2023Assignee: W. L. Gore & Associates, Inc.Inventors: Evan Honeyfield, Craig W. Irwin, Jacob B. Munger, Tyson J. Skelton
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Publication number: 20220125610Abstract: The present disclosure comprises devices, systems, and methods having an inverted sheath configured to cover, and in some instances constrain, a medical device and to retract through eversion, thus enabling the deployment of medical device at the treatment site. A constraining sheath can evert hydraulically. A constraining sheath can be configured to neck down a medical device to achieve a lower delivery profile. Furthermore, a constraining sheath can comprise a balloon to expand or positionally or structurally adjust a medical device.Type: ApplicationFiled: December 22, 2021Publication date: April 28, 2022Inventors: Edward H. Cully, Craig W. Irwin, James D. Silverman
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Patent number: 11229539Abstract: The present disclosure comprises devices, systems, and methods having an inverted sheath configured to cover, and in some instances constrain, a medical device and to retract through eversion, thus enabling the deployment of medical device at the treatment site. A constraining sheath can evert hydraulically. A constraining sheath can be configured to neck down a medical device to achieve a lower delivery profile. Furthermore, a constraining sheath can comprise a balloon to expand or positionally or structurally adjust a medical device.Type: GrantFiled: February 21, 2019Date of Patent: January 25, 2022Assignee: W. L. Gore & Associates, Inc.Inventors: Edward H. Cully, Craig W. Irwin, James D. Silverman
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Patent number: 10966850Abstract: An implantable medical device deployment system is disclosed that employs both a sheath element and a constraint member to protect implantable medical devices during delivery in a body while providing simple, accurate, and reliable device deployment. The delivery system is configured so that loading and deployment forces are not directly related to device diameter, length, or design, thus allowing a more universal delivery system across various delivered device configurations and product lines. The deployment system can provide numerous benefits, include better protection for drug-coated implantable devices.Type: GrantFiled: March 5, 2015Date of Patent: April 6, 2021Assignee: W. L. Gore & Associates, Inc.Inventors: Craig W. Irwin, James D. Silverman
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Publication number: 20210052404Abstract: A medical device frame including an undulating frame element defining a series of peaks each defining a longitudinal splay angle, circumferential cant angle, or combinations thereof. In some examples, the series of peaks are non-overlapping when the frame is in an expanded configuration and overlap when the frame is in the collapsed configuration. The longitudinal splay angle and/0 or circumferential cant angle may remain relatively unchanged between the expanded and collapsed configurations (e.g., within about 15%).Type: ApplicationFiled: April 30, 2019Publication date: February 25, 2021Inventors: Craig W. Irwin, James D. Silverman, Tyson J. Skelton
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Publication number: 20200323670Abstract: An implantable device delivery system is disclosed. The delivery system includes a constraining member situated between an interior layer and an exterior layer of a cover. The interior layer of the cover is disposed about an implantable medical device, and the exterior layer of the cover extends over a portion of the interior layer. The cover is generally tapered to minimize deployment forces. The constraining member is disposed about a portion of the interior layer and operates to constrain the implantable device to a delivery configuration. The cover and the constraining member are generally configured to be removed concurrently during deployment of the implantable device.Type: ApplicationFiled: October 10, 2018Publication date: October 15, 2020Inventors: Evan Honeyfield, Craig W. Irwin, Jacob B. Munger, Tyson J. Skelton
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Publication number: 20200237497Abstract: Various aspects of the present disclosure are directed toward implantable medical devices that include a frame and a tubular member attached to the frame. The tubular member includes one or more fibrils or a strength in alignment with one or more struts of the frame.Type: ApplicationFiled: October 9, 2018Publication date: July 30, 2020Inventors: James D. Silverman, Craig W. Irwin, Tyson J. Skelton
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Publication number: 20190247210Abstract: The present disclosure comprises devices, systems, and methods having an inverted sheath configured to cover, and in some instances constrain, a medical device and to retract through eversion, thus enabling the deployment of medical device at the treatment site. A constraining sheath can evert hydraulically. A constraining sheath can be configured to neck down a medical device to achieve a lower delivery profile. Furthermore, a constraining sheath can comprise a balloon to expand or positionally or structurally adjust a medical device.Type: ApplicationFiled: February 21, 2019Publication date: August 15, 2019Inventors: Edward H. Cully, Craig W. Irwin, James D. Silverman
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Patent number: 10213329Abstract: The present disclosure comprises devices, systems, and methods having an inverted sheath configured to cover, and in some instances constrain, a medical device and to retract through eversion, thus enabling the deployment of medical device at the treatment site. A constraining sheath can evert hydraulically. A constraining sheath can be configured to neck down a medical device to achieve a lower delivery profile. Furthermore, a constraining sheath can comprise a balloon to expand or positionally or structurally adjust a medical device.Type: GrantFiled: August 9, 2012Date of Patent: February 26, 2019Assignee: W. L. Gore & Associates, Inc.Inventors: Edward H. Cully, Craig W. Irwin, James D. Silverman
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Patent number: 9526641Abstract: The current invention employs tubes that can be constrained and expanded by either axial or torsional strain. By torsionally displacing the tube in a direction counter to the biased helices and angularly displacing the lower angle helix to an angle equal to, but opposite, the starting angle, the tube is expanded diametrically with no significant change in length after expansion of the tube. These tubes find utility in medical and non medical applications.Type: GrantFiled: January 14, 2015Date of Patent: December 27, 2016Assignee: W. L. Gore & Associates, Inc.Inventors: Craig W. Irwin, James D. Silverman
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Publication number: 20150250630Abstract: An implantable medical device deployment system is disclosed that employs both a sheath element and a constraint member to protect implantable medical devices during delivery in a body while providing simple, accurate, and reliable device deployment. The delivery system is configured so that loading and deployment forces are not directly related to device diameter, length, or design, thus allowing a more universal delivery system across various delivered device configurations and product lines. The deployment system can provide numerous benefits, include better protection for drug-coated implantable devices.Type: ApplicationFiled: March 5, 2015Publication date: September 10, 2015Inventors: Craig W. Irwin, James D. Silverman
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Patent number: 9127622Abstract: A rocket engine fluid-flow system includes a pump fluidly interconnecting a fluid source to a combustion chamber. A nozzle is in fluid communication with the combustion chamber and includes coolant tubes fluidly arranged between the pump and the combustion chamber. An orifice has a throat and is fluidly arranged between the pump and the coolant tubes. The orifice has entrance and exit ramps arranged on either side of the throat. The exit ramp has an exit ramp surface with a divergent angle that is less than a right angle. The entrance ramp provides a smooth approach to the orifice throat. In one example, the exit ramp includes an exit ramp surface having a divergent angle of 20-60°. The exit ramp radius is less than twice the throat radius in one example.Type: GrantFiled: November 21, 2011Date of Patent: September 8, 2015Assignee: UNITED TECHNOLOGIES CORPORATIONInventors: Jim A. Clark, Craig W. Irwin, Reed A. Kakuska
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Publication number: 20150134043Abstract: The current invention comprises tubes that can be constrained and expanded by either axial or torsional strain. By torsionally displacing the tube in a direction counter to the biased helices and angularly displacing the lower angle helix to an angle equal to, but opposite, the starting angle, the tube is expanded diametrically with no significant change in length after expansion of the tube. These tubes find utility in medical and non medical applications.Type: ApplicationFiled: January 14, 2015Publication date: May 14, 2015Inventors: Craig W. Irwin, James D. Silverman
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Patent number: 8936634Abstract: The current invention discloses tubes that can be constrained and expanded by either axial or torsional strain. By torsionally displacing the tube in a direction counter to the biased helices and angularly displacing the lower angle helix to an angle equal to, but opposite, the starting angle, the tube is expanded diametrically with no significant change in length after expansion of the tube. These tubes find utility in medical and non medical applications.Type: GrantFiled: January 19, 2011Date of Patent: January 20, 2015Assignee: W. L. Gore & Associates, Inc.Inventors: Craig W. Irwin, James D. Silverman
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Patent number: 8845712Abstract: A deployment sheath for medical devices is provided that includes one or more pleats in its pre-deployment state that are allowed to open during deployment so as to facilitate easier device deployment and sheath removal. Preferably, the sheath is removed by everting it over itself during the delivery process. By orienting the pleats along the length of the sheath, preferably helically around the sheath, the sheath undergoes a predictable enlargement during deployment so as to relieve friction of the everted sheath sliding along itself during deployment. This allows the sheath to be removed with less tension than previous everting sheath constructions and assures more accurate device placement in a patient.Type: GrantFiled: January 15, 2008Date of Patent: September 30, 2014Assignee: W. L. Gore & Associates, Inc.Inventors: Craig W. Irwin, James D. Silverman
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Publication number: 20130296877Abstract: A deployment sheath for medical devices is provided that includes one or more pleats in its pre-deployment state that are allowed to open during deployment so as to facilitate easier device deployment and sheath removal. Preferably, the sheath is removed by everting it over itself during the delivery process. By orienting the pleats along the length of the sheath, preferably helically around the sheath, the sheath undergoes a predictable enlargement during deployment so as to relieve friction of the everted sheath sliding along itself during deployment. This allows the sheath to be removed with less tension than previous everting sheath constructions and assures more accurate device placement in a patient.Type: ApplicationFiled: March 15, 2013Publication date: November 7, 2013Inventors: Craig W. Irwin, James D. Silverman
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Publication number: 20130204345Abstract: The present disclosure comprises devices, systems, and methods having an inverted sheath configured to cover, and in some instances constrain, a medical device and to retract through eversion, thus enabling the deployment of medical device at the treatment site. A constraining sheath can evert hydraulically. A constraining sheath can be configured to neck down a medical device to achieve a lower delivery profile. Furthermore, a constraining sheath can comprise a balloon to expand or positionally or structurally adjust a medical device.Type: ApplicationFiled: August 9, 2012Publication date: August 8, 2013Inventors: Edward H. Cully, Craig W. Irwin, James D. Silverman