Patents Assigned to VADOVATIONS, INC.
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Publication number: 20230364410Abstract: A rotary pump housing having a cylindrical bore, a pumping chamber and a motor stator including an electrically conductive coil located within the housing and surrounding a portion of the cylindrical bore. A rotor has a cylindrical shaft with an impeller and one or of magnets located within the shaft that are responsive to the motor stator to drive actuation of the rotor. The housing bore is closely fitted to the outer surface of the shaft forming a hydrodynamic journal bearing with an annular clearance defining a leakage flow path. One or more of radial or axial thrust bearings may be provided to provide rotation stability to the rotor and flow within the leakage flow path. The relative orientation of positions of the inflow, outflow, and leakage flow paths may be varied within the pump, such as to accommodate different intended methods for implantation and/or use.Type: ApplicationFiled: June 26, 2023Publication date: November 16, 2023Applicant: VADOVATIONS, INC.Inventors: J. Ryan Stanfield, Michael Vladovich, Timothy R. Maher
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Patent number: 11724093Abstract: A rotary pump housing having a cylindrical bore, a pumping chamber and a motor stator including an electrically conductive coil located within the housing and surrounding a portion of the cylindrical bore. A rotor has a cylindrical shaft with an impeller and one or of magnets located within the shaft that are responsive to the motor stator to drive actuation of the rotor. The housing bore is closely fitted to the outer surface of the shaft forming a hydrodynamic journal bearing with an annular clearance defining a leakage flow path. One or more of radial or axial thrust bearings may be provided to provide rotation stability to the rotor and flow within the leakage flow path. The relative orientation of positions of the inflow, outflow, and leakage flow paths may be varied within the pump, such as to accommodate different intended methods for implantation and/or use.Type: GrantFiled: July 5, 2020Date of Patent: August 15, 2023Assignee: VADOVATIONS, INC.Inventors: J. Ryan Stanfield, Michael Vladovich, Timothy R. Maher
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Patent number: 11589896Abstract: In an aspect, a device includes a body structure including a core and a sleeve disposed around at least a portion of the core, the core defining a channel through the core extending from a first end of the core to a second end of the core, the sleeve including a flange adjacent the second end of the core; and a deployable portion coupled to the body structure adjacent the first end of the core, the deployable portion having a wired structure transitionable between a retained configuration and a deployed configuration, wherein a top portion of the wired structure extends beyond the first end of the core in a longitudinal direction when the wired structure is in the retained configuration, and wherein first end of the core extends beyond the top portion of the wired structure when the wired structure is in the deployed configuration.Type: GrantFiled: December 2, 2020Date of Patent: February 28, 2023Assignee: VADovations, Inc.Inventors: J. Ryan Stanfield, James W. Long, Michael A. Vladovich
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Patent number: 11309662Abstract: An electrical connector includes a plug that mates with a receptacle. In a medical application, the plug is connected to electrical leads that pass through a patient's skin to an implanted medical device in the patient's body, while the receptacle is connected to external medical equipment. All electrical contacts in the plug are on internal portions. The receptacle includes annular contacts that contact the internal electrical contacts on the plug when the plug and receptacle are properly mated. The receptacle includes a plurality of annular electrical contacts that have a first diameter and are separated by a plurality of annular insulators having a second diameter smaller than the first diameter.Type: GrantFiled: September 30, 2020Date of Patent: April 19, 2022Assignee: VADovations, Inc.Inventors: J. Ryan Stanfield, Timothy R. Maher, Trevor A. Snyder, Andrew Matthews
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Publication number: 20210236799Abstract: A heart assist device comprising a rotary pump housing having a cylindrical bore, a pumping chamber and a motor stator including an electrically conductive coil located within the housing and surrounding a portion of the cylindrical bore. A rotor has a cylindrical shaft with an impeller and one or of magnets located within the shaft that are responsive to the motor stator to drive actuation of the rotor. The housing bore is closely fitted to the outer surface of the shaft forming a hydrodynamic journal bearing with an annular clearance defining a leakage flow path. One or more of radial or axial thrust bearings may be provided to provide rotation stability to the rotor and flow within the leakage flow path. The relative orientation of positions of the inflow, outflow, and leakage flow paths may be varied within the pump, such as to accommodate different intended methods for implantation and/or use.Type: ApplicationFiled: February 4, 2021Publication date: August 5, 2021Applicant: VADOVATIONS, INC.Inventors: J. Ryan Stanfield, Michael Vladovich
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Patent number: 10918774Abstract: A heart assist device comprising a rotary pump housing having a cylindrical bore, a pumping chamber and a motor stator including an electrically conductive coil located within the housing and surrounding a portion of the cylindrical bore. A rotor has a cylindrical shaft with an impeller and one or of magnets located within the shaft that are responsive to the motor stator to drive actuation of the rotor. The housing bore is closely fitted to the outer surface of the shaft forming a hydrodynamic journal bearing with an annular clearance defining a leakage flow path. One or more of radial or axial thrust bearings may be provided to provide rotation stability to the rotor and flow within the leakage flow path. The relative orientation of positions of the inflow, outflow, and leakage flow paths may be varied within the pump, such as to accommodate different intended methods for implantation and/or use.Type: GrantFiled: October 30, 2018Date of Patent: February 16, 2021Assignee: VADOVATIONS, INC.Inventors: J. Ryan Stanfield, Michael Vladovich
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Patent number: 10886663Abstract: An electrical connector includes a plug that mates with a receptacle. In a medical application, the plug is connected to electrical leads that pass through a patient's skin to an implanted medical device in the patient's body, while the receptacle is connected to external medical equipment. The plug is small in diameter so the size of the opening in the patient's skin can be minimized. All electrical contacts in the plug are on internal portions. The receptacle includes annular contacts that contact the internal electrical contacts on the plug when the plug and receptacle are properly mated. When the plug is plugged into the receptacle, spring-loaded retention arms in the receptacle lock into place on the plug, retaining the plug in the receptacle.Type: GrantFiled: June 30, 2020Date of Patent: January 5, 2021Assignee: VADovations, Inc.Inventors: J. Ryan Stanfield, Timothy R. Maher, Trevor A. Snyder, Andrew Matthews
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Patent number: 10881430Abstract: In an aspect, a device includes a body structure including a core and a sleeve disposed around at least a portion of the core, the core defining a channel through the core extending from a first end of the core to a second end of the core, the sleeve including a flange adjacent the second end of the core; and a deployable portion coupled to the body structure adjacent the first end of the core, the deployable portion having a wired structure transitionable between a retained configuration and a deployed configuration, wherein a top portion of the wired structure extends beyond the first end of the core in a longitudinal direction when the wired structure is in the retained configuration, and wherein first end of the core extends beyond the top portion of the wired structure when the wired structure is in the deployed configuration.Type: GrantFiled: April 10, 2019Date of Patent: January 5, 2021Assignee: VADovations, Inc.Inventors: J. Ryan Stanfield, James W. Long, Michael A. Vladovich
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Publication number: 20200405932Abstract: A rotary pump housing having a cylindrical bore, a pumping chamber and a motor stator including an electrically conductive coil located within the housing and surrounding a portion of the cylindrical bore. A rotor has a cylindrical shaft with an impeller and one or of magnets located within the shaft that are responsive to the motor stator to drive actuation of the rotor. The housing bore is closely fitted to the outer surface of the shaft forming a hydrodynamic journal bearing with an annular clearance defining a leakage flow path. One or more of radial or axial thrust bearings may be provided to provide rotation stability to the rotor and flow within the leakage flow path. The relative orientation of positions of the inflow, outflow, and leakage flow paths may be varied within the pump, such as to accommodate different intended methods for implantation and/or use.Type: ApplicationFiled: July 5, 2020Publication date: December 31, 2020Applicant: VADOVATIONS, INC.Inventors: J. Ryan Stanfield, Michael Vladovich, Timothy R. Maher
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Patent number: 10855026Abstract: An electrical connector includes a plug that mates with a receptacle. In a medical application, the plug is connected to electrical leads that pass through a patient's skin to an implanted medical device in the patient's body, while the receptacle is connected to external medical equipment. The plug is small in diameter so the size of the opening in the patient's skin can be minimized. All electrical contacts in the plug are on internal portions. The receptacle includes annular contacts that contact the internal electrical contacts on the plug when the plug and receptacle are properly mated. When the plug is plugged into the receptacle, spring-loaded retention arms in the receptacle lock into place on the plug, retaining the plug in the receptacle.Type: GrantFiled: June 30, 2020Date of Patent: December 1, 2020Assignee: VADovations, Inc.Inventors: J. Ryan Stanfield, Timothy R. Maher, Trevor A. Snyder, Andrew Matthews
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Patent number: 10833451Abstract: An electrical connector includes a plug that mates with a receptacle. In a medical application, the plug is connected to electrical leads that pass through a patient's skin to an implanted medical device in the patient's body, while the receptacle is connected to external medical equipment. All electrical contacts in the plug are on internal portions. The receptacle includes annular contacts that contact the internal electrical contacts on the plug when the plug and receptacle are properly mated. The receptacle includes a plurality of annular electrical contacts that have a first diameter and are separated by a plurality of annular insulators having a second diameter smaller than the first diameter.Type: GrantFiled: October 14, 2019Date of Patent: November 10, 2020Assignee: VADovations, Inc.Inventors: J. Ryan Stanfield, Timothy R. Maher, Trevor A. Snyder, Andrew Matthews
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Patent number: 10741968Abstract: An electrical connector includes a plug that mates with a receptacle. In a medical application, the plug is connected to electrical leads that pass through a patient's skin to an implanted medical device in the patient's body, while the receptacle is connected to external medical equipment. The plug is small in diameter so the size of the opening in the patient's skin can be minimized. All electrical contacts in the plug are on internal portions. The receptacle includes spring-loaded contacts that contact the internal electrical contacts on the plug when the plug and receptacle are properly mated. When the plug is plugged into the receptacle, spring-loaded retention arms in the receptacle lock into place on the plug, retaining the plug in the receptacle.Type: GrantFiled: September 10, 2018Date of Patent: August 11, 2020Assignee: VADovations, Inc.Inventors: J. Ryan Stanfield, Timothy R. Maher, Trevor A. Snyder, Andrew Matthews
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Patent number: 10483690Abstract: An electrical connector includes a plug that mates with a receptacle. In a medical application, the plug is connected to electrical leads that pass through a patient's skin to an implanted medical device in the patient's body, while the receptacle is connected to external medical equipment. The plug is small in diameter so the size of the opening in the patient's skin can be minimized. All electrical contacts in the plug are on internal portions. The receptacle includes annular contacts that contact the internal electrical contacts on the plug when the plug and receptacle are properly mated. When the plug is plugged into the receptacle, spring-loaded retention arms in the receptacle lock into place on the plug, retaining the plug in the receptacle.Type: GrantFiled: September 10, 2018Date of Patent: November 19, 2019Assignee: VADovations, Inc.Inventors: J. Ryan Stanfield, Timothy R. Maher, Trevor A. Snyder, Andrew Matthews
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Patent number: 10456167Abstract: A coring tool and a dilator for defining an aperture in a tissue is presented. The system is preferably configured for generating an aperture within a ventricular wall for a method of implantation of ventricular assist devices (VAD's). The insertion tool/system includes a conduit device including a detachable dilator-coring tool and cuff which secures within a defined aperture in the tissue.Type: GrantFiled: January 31, 2017Date of Patent: October 29, 2019Assignee: VADOVATIONS, INC.Inventors: J. Ryan Stanfield, James W. Long
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Patent number: 9737651Abstract: A heart assist device comprising a rotary pump housing having a cylindrical bore, a pumping chamber and a motor stator including an electrically conductive coil located within the housing and surrounding a portion of the cylindrical bore. A rotor has a cylindrical shaft, at least one impeller appended to one end of the shaft, and a plurality of magnets located within the shaft. The rotor shaft is positioned within the housing bore with the magnets opposite the motor stator, and the impeller is positioned within the pumping chamber. The housing bore is closely fitted to the outer surface of the shaft forming a hydrodynamic journal bearing, with the pumping chamber and journal bearing connected by a leak path of blood flow between the pumping chamber and the journal bearing. A backiron of the motor stator attracts the rotor magnets to resist longitudinal displacement of the rotor within the housing during operation.Type: GrantFiled: November 10, 2015Date of Patent: August 22, 2017Assignee: VADOVATIONS, INC.Inventor: Richard Wampler
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Publication number: 20170202575Abstract: A coring tool and a dilator for defining an aperture in a tissue is presented. The system is preferably configured for generating an aperture within a ventricular wall for a method of implantation of ventricular assist devices (VAD's). The insertion tool/system includes a conduit device including a detachable dilator-coring tool and cuff which secures within a defined aperture in the tissue.Type: ApplicationFiled: January 31, 2017Publication date: July 20, 2017Applicant: VADOVATIONS, INC.Inventors: J. Ryan Stanfield, James W. Long
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Publication number: 20160144087Abstract: A heart assist device comprising a rotary pump housing having a cylindrical bore, a pumping chamber and a motor stator including an electrically conductive coil located within the housing and surrounding a portion of the cylindrical bore. A rotor has a cylindrical shaft, at least one impeller appended to one end of the shaft, and a plurality of magnets located within the shaft. The rotor shaft is positioned within the housing bore with the magnets opposite the motor stator, and the impeller is positioned within the pumping chamber. The housing bore is closely fitted to the outer surface of the shaft forming a hydrodynamic journal bearing, with the pumping chamber and journal bearing connected by a leak path of blood flow between the pumping chamber and the journal bearing. A backiron of the motor stator attracts the rotor magnets to resist longitudinal displacement of the rotor within the housing during operation.Type: ApplicationFiled: November 10, 2015Publication date: May 26, 2016Applicant: VADOVATIONS, INC.Inventor: Richard Wampler
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Patent number: 9211368Abstract: A heart assist device comprising a rotary pump housing having a cylindrical bore, a pumping chamber and a motor stator including an electrically conductive coil located within the housing and surrounding a portion of the cylindrical bore. A rotor has a cylindrical shaft, at least one impeller appended to one end of the shaft, and a plurality of magnets located within the shaft. The rotor shaft is positioned within the housing bore with the magnets opposite the motor stator, and the impeller is positioned within the pumping chamber. The housing bore is closely fitted to the outer surface of the shaft forming a hydrodynamic journal bearing, with the pumping chamber and journal bearing connected by a leak path of blood flow between the pumping chamber and the journal bearing. A backiron of the motor stator attracts the rotor magnets to resist longitudinal displacement of the rotor within the housing during operation.Type: GrantFiled: March 4, 2013Date of Patent: December 15, 2015Assignee: VADOVATIONS, INC.Inventor: Richard Wampler