Patents by Inventor James M. Colvin
James M. Colvin 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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Patent number: 11911298Abstract: A device is provided to allow adaptation of a prosthetic or robotic foot in the medial-lateral direction, including pronation and supination of the foot using a series of articulations. Articulations are permitted in the disclosed device due to linkage systems positioned at various locations of the prosthetic foot. In particular, the device includes multiple connected linkage systems each including upper and lower portions with an articulating contact surface designed for load carriage and stability. The point of contact between the contact surfaces of each linkage system comprises the position-dependent instantaneous center of rotation of the upper portion with respect to the lower portion. The device also includes a platform coupled between the linkage systems and a base.Type: GrantFiled: June 15, 2021Date of Patent: February 27, 2024Assignees: University of Washington, The Ohio Willow Wood CompanyInventors: Murray E. Maitland, Matthew M. Wernke, Evandro M. Ficanha, James M. Colvin
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Publication number: 20230018244Abstract: A conductive human interface has a fabric layer with an interior surface and an exterior surface. A soft coating overlies the interior surface of the fabric layer. An electrode or sensor is included to connect with a user. A conductive path connects the electrode or sensor with an electrical connector which, in turn connects with a prosthetic or other assistive device. The conductive path includes a conductor having a section overlying the fabric layer. The overlying section of the conductor can be cord of conductive thread. A nonconductive support thread can extend through the fabric layer from the exterior surface to the interior surface, and further around the conductor to secure the overlying section of the conductor to the fabric layer.Type: ApplicationFiled: September 27, 2022Publication date: January 19, 2023Applicant: WILLOWWOOD GLOBAL LLCInventors: Matthew WERNKE, Ryan SCHROEDER, James M. COLVIN, Michael L. HAYNES, Stephen A. BYERS, Christopher T. KELLEY, Anne Marie JACKSON
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Patent number: 11464438Abstract: A conductive human interface has a fabric layer with an interior surface and an exterior surface. A soft coating overlies the interior surface of the fabric layer. An electrode or sensor is included to connect with a residual limb. A conductive path connects the electrode or sensor with an electrical connector which, in turn connects with a prosthetic or other assistive device. The conductive path includes a conductor having a section overlying the fabric layer. The overlying section of the conductor can be cord of conductive thread. A nonconductive support thread can extend through the fabric layer from the exterior surface to the interior surface, and further around the conductor to secure the overlying section of the conductor to the fabric layer.Type: GrantFiled: August 11, 2017Date of Patent: October 11, 2022Assignee: WILLOWWOOD GLOBAL LLCInventors: Matthew Wernke, Ryan Schroeder, James M. Colvin, Michael L. Haynes, Stephen A. Byers, Christopher T. Kelley, Anne Marie Jackson
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Publication number: 20220039971Abstract: A prosthetic foot that includes a foot plate having a toe portion and a heel portion, a shank plate bonded to the foot plate along a seam that extends from the toe portion rearward toward the heel portion to terminate at an end, the shank plate separated from the foot plate forming a gap between the foot plate and shank plate extending rearward from the end of the seam; and an attachment structure attaching the foot plate to the shank plate, wherein the attachment structure includes fibers extending continuously through the shank plate, the gap, and the foot plate. In embodiments, the foot plate and shank plate are made of composite material and the attachment structure alternately extends through the seam and through a flexible material between the shank plate and the foot plate.Type: ApplicationFiled: October 25, 2021Publication date: February 10, 2022Inventors: James M. Colvin, Matthew M. Wernke, Evandro M. Ficanha
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Patent number: 11173053Abstract: A prosthetic foot structure includes a plate assembly having a toe portion and a heel portion. The plate assembly includes a first plate adjoining a second plate along a seam at which the first plate is bonded to the second plate. The seam has an end between the first and second plates, and the first plate is spaced from the second plate across a gap that reaches away from the end of the seam. An attachment structure attaches the first plate to second plate. The attachment structure has a composite composition including a resin material containing reinforcing fibers. The reinforcing fibers reach through the first plate, across the gap, and through the second plate.Type: GrantFiled: March 4, 2020Date of Patent: November 16, 2021Assignee: WILLOWWOOD GLOBAL LLCInventors: James M. Colvin, Matthew M. Wernke, Stephen A. Byers, Evandro M. Ficanha
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Publication number: 20210307939Abstract: A device is provided to allow adaptation of a prosthetic or robotic foot in the medial-lateral direction, including pronation and supination of the foot using a series of articulations. Articulations are permitted in the disclosed device due to linkage systems positioned at various locations of the prosthetic foot. In particular, the device includes multiple connected linkage systems each including upper and lower portions with an articulating contact surface designed for load carriage and stability. The point of contact between the contact surfaces of each linkage system comprises the position-dependent instantaneous center of rotation of the upper portion with respect to the lower portion. The device also includes a platform coupled between the linkage systems and a base.Type: ApplicationFiled: June 15, 2021Publication date: October 7, 2021Inventors: Murray E. Maitland, Matthew M. Wemke, Evandro M. Ficanha, James M. Colvin
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Publication number: 20210275327Abstract: A prosthetic foot structure includes a plate assembly having a toe portion and a heel portion. The plate assembly includes a first plate adjoining a second plate along a seam at which the first plate is bonded to the second plate. The seam has an end between the first and second plates, and the first plate is spaced from the second plate across a gap that reaches away from the end of the seam. An attachment structure attaches the first plate to second plate. The attachment structure has a composite composition including a resin material containing reinforcing fibers. The reinforcing fibers reach through the first plate, across the gap, and through the second plate.Type: ApplicationFiled: March 4, 2020Publication date: September 9, 2021Applicant: WillowWood Global LLCInventors: James M. Colvin, Matthew M. Wernke, Stephen A. Byers, Evandro M. Ficanha
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Patent number: 11076970Abstract: A device is provided to allow adaptation of a prosthetic or robotic foot in the medial-lateral direction, including pronation and supination of the foot using a series of articulations. Articulations are permitted in the disclosed device due to linkage systems positioned at various locations of the prosthetic foot. In particular, the device includes multiple connected linkage systems each including upper and lower portions with an articulating contact surface designed for load carriage and stability. The point of contact between the contact surfaces of each linkage system comprises the position-dependent instantaneous center of rotation of the upper portion with respect to the lower portion. The device also includes a platform coupled between the linkage systems and a base.Type: GrantFiled: March 19, 2018Date of Patent: August 3, 2021Assignees: University of Washington, The Ohio Willow Wood Company ]Inventors: Murray E. Maitland, Matthew M. Wernke, Evandro M. Ficanha, James M. Colvin
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Patent number: 10039653Abstract: A prosthetic cushion liner may include a fabric covering having an open end for introduction of a residual limb and a closed end opposite the open end. The prosthetic cushion liner may include a continuous layer of a gel composition residing on an interior surface of the fabric covering. The gel composition may include a plasticizing oil; one or more of a SEBS thermoplastic elastomer, a SEPS thermoplastic elastomer, a SEEPS thermoplastic elastomer; and a hydrogenated block copolymer.Type: GrantFiled: February 22, 2016Date of Patent: August 7, 2018Assignee: THE OHIO WILLOW WOOD COMPANYInventors: Christopher T. Kelley, James M. Colvin
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Publication number: 20180207006Abstract: A device is provided to allow adaptation of a prosthetic or robotic foot in the medial-lateral direction, including pronation and supination of the foot using a series of articulations. Articulations are permitted in the disclosed device due to linkage systems positioned at various locations of the prosthetic foot. In particular, the device includes multiple connected linkage systems each including upper and lower portions with an articulating contact surface designed for load carriage and stability. The point of contact between the contact surfaces of each linkage system comprises the position-dependent instantaneous center of rotation of the upper portion with respect to the lower portion. The device also includes a platform coupled between the linkage systems and a base.Type: ApplicationFiled: March 19, 2018Publication date: July 26, 2018Inventors: Murray E. Maitland, Matthew M. Wernke, Evandro M. Ficanha, James M. Colvin
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Patent number: 9907677Abstract: A stable shock absorbing prosthetic foot that transfers energy between heel strike and toe-off. A toe plate is separated from one or more other plates by a bumper assembly located at each of the toe end and heel end of the foot. Certain embodiments of the shock absorbing foot of the present invention are designed for use with a prosthetic ankle. A torsion adapter may also be used to attach a prosthetic foot of the present invention to the remainder of a prosthesis.Type: GrantFiled: January 7, 2016Date of Patent: March 6, 2018Assignee: The Ohio Willow Wood CompanyInventors: Jeffrey L. Doddroe, Charles R. Flora, Lonnie L. Nolt, James M. Colvin
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Publication number: 20180042509Abstract: A conductive human interface has a fabric layer with an interior surface and an exterior surface. A soft coating overlies the interior surface of the fabric layer. An electrode or sensor is included to connect with a residual limb. A conductive path connects the electrode or sensor with an electrical connector which, in turn connects with a prosthetic or other assistive device. The conductive path includes a conductor having a section overlying the fabric layer. The overlying section of the conductor can be cord of conductive thread. A nonconductive support thread can extend through the fabric layer from the exterior surface to the interior surface, and further around the conductor to secure the overlying section of the conductor to the fabric layer.Type: ApplicationFiled: August 11, 2017Publication date: February 15, 2018Applicant: The Ohio Willow Wood CompanyInventors: Matthew Wernke, Ryan Schroeder, James M. Colvin, Michael L. Haynes, Stephen A. Byers, Christopher T. Kelley, Anne Marie Jackson
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Publication number: 20170079811Abstract: Various systems and methods for removing perspiration from the interior of a donned polymeric prosthetic liner are disclosed.Type: ApplicationFiled: December 2, 2016Publication date: March 23, 2017Applicant: The Ohio Willow Wood CompanyInventors: Christopher T. Kelley, James M. Colvin, Jeffrey A. Denune, Lonnie L. Nolt
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Patent number: 9532886Abstract: A prosthetic foot structure includes a primary foot member and a heel member. The primary foot member has a heel portion, a toe portion with a pair of toe sections separated by a gap, and an elongated intermediate portion configured as an arch extending downward from the heel portion toward the toe portion. The heel member includes a hollow cylindrical spring wall extending downward from the heel portion of the primary foot member. The primary foot member and the heel member are portions of a unitary body of material formed by additive manufacturing.Type: GrantFiled: December 21, 2015Date of Patent: January 3, 2017Assignee: THE OHIO WILLOW WOOD COMPANYInventors: James M. Colvin, Jeffrey A. Denune, James W. Capper, Michael L. Haynes
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Publication number: 20160250045Abstract: According to the embodiments described herein, prosthetic devices can include a prosthetic socket, a vacuum passage, and an evacuation device. The interior of the prosthetic socket can be adapted to receive a residual limb. The vacuum passage can extend through the side wall of the prosthetic socket and into the interior of the prosthetic socket. The evacuation device can include an electrically powered vacuum pump contained within a housing. The housing can be attached to the side wall on the exterior of the prosthetic socket. The electrically powered vacuum pump can be in communication with the vacuum passage. The electrically powered vacuum pump can draw air from the interior of the prosthetic socket, while the residual limb is received within the interior of the prosthetic socket, to evacuate the prosthetic socket.Type: ApplicationFiled: May 9, 2016Publication date: September 1, 2016Inventors: James M. Colvin, Michael L. Haynes, Mark W. Ford, Mark W. Groves, Jeffrey A. Denune
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Publication number: 20160175118Abstract: A prosthetic device comprises a plurality of polymer units attached to one or more leaf springs. The polymer units are spaced apart and define spaces between the units such that there is no contact between any two polymer units at maximum deflection of the one or more leaf springs. The polymer units may be impermeable to water and the spaces may facilitate free flow of liquids out of the device. The plurality of polymer units may comprise a heel piece and a toe piece. One or both of the heel piece and the toe piece may extend beneath the one or more leaf springs such that the one or more leaf springs do not contact the ground when the device is used for ambulatory movement. The toe piece may extend further down than the heel piece and may extend beneath the one or more leaf springs such that extension of the toe piece provides increased flexing of the one or more leaf springs.Type: ApplicationFiled: December 15, 2015Publication date: June 23, 2016Inventors: Bruce G. Kania, Frank M. Stewart, James M. Colvin, Ryan M. Schroeder
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Publication number: 20160166411Abstract: A prosthetic cushion liner may include a fabric covering having an open end for introduction of a residual limb and a closed end opposite the open end. The prosthetic cushion liner may include a continuous layer of a gel composition residing on an interior surface of the fabric covering. The gel composition may include a plasticizing oil; one or more of a SEBS thermoplastic elastomer, a SEPS thermoplastic elastomer, a SEEPS thermoplastic elastomer; and a hydrogenated block copolymer.Type: ApplicationFiled: February 22, 2016Publication date: June 16, 2016Inventors: Christopher T. Kelley, James M. Colvin
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Publication number: 20160158030Abstract: A stable shock absorbing prosthetic foot that transfers energy between heel strike and toe-off. A toe plate is separated from one or more other plates by a bumper assembly located at each of the toe end and heel end of the foot. Certain embodiments of the shock absorbing foot of the present invention are designed for use with a prosthetic ankle. A torsion adapter may also be used to attach a prosthetic foot of the present invention to the remainder of a prosthesis.Type: ApplicationFiled: January 7, 2016Publication date: June 9, 2016Applicant: The Ohio Willow Wood CompanyInventors: Jeffrey L. Doddroe, Charles R. Flora, Lonnie L. Nolt, James M. Colvin
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Patent number: 9351853Abstract: A stable shock absorbing prosthetic foot that transfers energy between heel strike and toe-off. A toe plate is separated from one or more other plates by a bumper assembly located at each of the toe end and heel end of the foot. Certain embodiments of the shock absorbing foot of the present invention are designed for use with a prosthetic ankle. A torsion adapter may also be used to attach a prosthetic foot of the present invention to the remainder of a prosthesis.Type: GrantFiled: December 1, 2014Date of Patent: May 31, 2016Assignee: The Ohio Willow Wood CompanyInventors: Jeffrey L. Doddroe, Charles R. Flora, Lonnie L. Nolt, James M. Colvin
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Publication number: 20160106555Abstract: Various systems, apparatuses, and methods for producing a prosthetic foot by an additive manufacturing process are disclosed.Type: ApplicationFiled: December 21, 2015Publication date: April 21, 2016Applicant: The Ohio Willow Wood CompanyInventors: James M. Colvin, Jeffrey A. Denune, James W. Capper, Michael L. Haynes