Patents by Inventor William V. Hodges

William V. Hodges 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: 20210008262
    Abstract: Blood pump devices having improved rotary seals for sealing a bearing assembly supporting a rotor provided herein. Such rotary seals are particularly suited for use in blood pump devices that include rotors having cantilevered supported through a sealed mechanical bearing disposed outside a blood flow path of the device to avoid thrombus formation caused by blood contact with the bearing. The rotary seal can include a first and second face seal that are preloaded with a deflectable compliance member incorporated into the pump housing or a pair of magnets. Such rotary seals can instead or further utilize tight fitment between components or a bio-absorbable fill material to seal an interface between the rotor shaft and pump housing to seal the bearing assembly from fluid flowing through the pump.
    Type: Application
    Filed: August 13, 2020
    Publication date: January 14, 2021
    Applicant: TC1 LLC
    Inventors: William V. Hodges, Ian McEachern, Eric T. Lee
  • Patent number: 10857273
    Abstract: Blood pump devices having improved rotary seals for sealing a bearing assembly supporting a rotor provided herein. Such rotary seals are particularly suited for use in blood pump devices that include rotors having cantilevered supported through a sealed mechanical bearing disposed outside a blood flow path of the device to avoid thrombus formation caused by blood contact with the bearing. The rotary seal can include a first and second face seal that are preloaded with a deflectable compliance member incorporated into the pump housing or a pair of magnets. Such rotary seals can instead or further utilize tight fitment between components or a bio-absorbable fill material to seal an interface between the rotor shaft and pump housing to seal the bearing assembly from fluid flowing through the pump.
    Type: Grant
    Filed: July 19, 2017
    Date of Patent: December 8, 2020
    Assignee: TC1 LLC
    Inventors: William V. Hodges, Ian McEachern, Eric T. Lee
  • Patent number: 10702641
    Abstract: Blood pumps for ventricular assist devices employ a hollow rotor to impel blood through the blood pump. A blood pump includes a housing having a housing inlet, a housing outlet, and a housing blood flow channel through which the housing inlet and the housing outlet are in fluid communication. A motor stator is disposed around the housing blood flow channel and operable to generate a rotating magnetic field. A hollow rotor is disposed within the housing blood flow channel and rotated via the rotating magnetic field. The hollow rotor has a rotor circumferential wall enclosing a rotor blood flow channel. The hollow rotor has at least one rotor blade extending inwardly from the rotor circumferential wall. The at least one rotor blade is configured to impel blood through the rotor blood flow channel when the hollow rotor is rotated via the rotating magnetic field.
    Type: Grant
    Filed: June 29, 2016
    Date of Patent: July 7, 2020
    Assignee: TC1 LLC
    Inventors: Eric T. Lee, William V. Hodges, Yi-Ren Woo
  • Patent number: 10660998
    Abstract: Blood pump devices having one or more sensors for monitoring performance of a bearing assembly and/or a fluid-tight seal are provided herein. Such devices are particularly useful in blood pump devices that have cantilevered rotors supported by a sealed mechanical bearing disposed outside a blood flow path of the device to avoid thrombus formation caused by blood contact with the bearing. The one or more sensors can include one or more accelerometers adapted to detect movement of the bearing assembly along one or more axes during operation of the pump. A vibration profile can be determined from the movement data from the one or more sensors that is indicative of performance of the bearing assembly and/or seal so as to allow monitoring over time.
    Type: Grant
    Filed: August 10, 2017
    Date of Patent: May 26, 2020
    Assignee: TCI LLC
    Inventor: William V. Hodges
  • Patent number: 10646630
    Abstract: Blood pump devices having improved rotor design are provided herein. Such blood pump devices include rotors having cantilevered support through a sealed mechanical bearing disposed outside a blood flow path of the device so as to avoid thrombus formation caused by blood contact with the bearing. The bearing means can be rotatably coupled with a proximal portion of the rotor shaft extending outside the fluid path, while a stator drives rotation of the rotor shaft so that one or more rotor blades on a distal portion of the rotor force blood flow through the device. The bearing means may include one or more radial bearings on a proximal portion of the rotor shaft that are isolated from the blood flow path by one or more rotary seals.
    Type: Grant
    Filed: June 26, 2018
    Date of Patent: May 12, 2020
    Assignee: TC1 LLC
    Inventor: William V. Hodges
  • Publication number: 20190358380
    Abstract: Blood pump devices having improved rotary seals for sealing a hearing assembly supporting a rotor provided herein. Such rotary teals are particularly suited for use in blood pump devices that include rotors having cantilevered supported through a sealed mechanical bearing disposal outside a blood flow path of the device to avoid thrombus formation caused by blood contact with the bearing. The rotary seal can include a first and second face seal that are preloaded with a deflectable compliance member incorporated into the pump housing or a pair of magnets. Such rotary seals can instead or further utilize tight fitment between components or a bio-absorbable fill material to seal an interface between the rotor shaft and pump housing to seal the bearing assembly from fluid flowing through the pump.
    Type: Application
    Filed: July 19, 2017
    Publication date: November 28, 2019
    Inventor: William V. Hodges
  • Publication number: 20190343998
    Abstract: Blood pump devices having one or more sensors for monitoring performance of a bearing assembly and/or a fluid-tight seal are provided herein. Such devices are particularly useful in blood pump devices that have cantilevered rotors supported by a sealed mechanical bearing disposed outside a blood flow path of the device to avoid thrombus formation caused by blood contact with the bearing. The one or more sensors can include one or more accelerometers adapted to detect movement of the bearing assembly along one or more axes during operation of the pump. A vibration profile can be determined from the movement data from the one or more sensors that is indicative of performance of the bearing assembly and/or seal so as to allow monitoring over time.
    Type: Application
    Filed: August 10, 2017
    Publication date: November 14, 2019
    Applicant: TC1 LLC
    Inventor: William V. Hodges
  • Patent number: 10279093
    Abstract: A blood pump includes a hub having an axis of rotation and a generally cylindrical shape. The hub has an upstream end region, a central region, and a downstream end region, and the hub includes a magnetic material. Blades that are disposed on the downstream end region of the hub extend downstream of the hub.
    Type: Grant
    Filed: November 22, 2016
    Date of Patent: May 7, 2019
    Assignee: TC1 LLC
    Inventors: Steven H. Reichenbach, Stephen G. Briana, William V. Hodges, Eric Lee, Yi-Ren Woo, Onur Dur, David Gary Eldridge, Pieter W. C. J. le Blanc
  • Publication number: 20180318481
    Abstract: Blood pump devices having improved rotor design are provided herein. Such blood pump devices include rotors having cantilevered support through a sealed mechanical bearing disposed outside a blood flow path of the device so as to avoid thrombus formation caused by blood contact with the bearing. The bearing means can be rotatably coupled with a proximal portion of the rotor shaft extending outside the fluid path, while a stator drives rotation of the rotor shaft so that one or more rotor blades on a distal portion of the rotor force blood flow through the device. The bearing means may include one or more radial bearings on a proximal portion of the rotor shaft that are isolated from the blood flow path by one or more rotary seals.
    Type: Application
    Filed: June 26, 2018
    Publication date: November 8, 2018
    Inventor: William V. Hodges
  • Patent number: 10029038
    Abstract: Blood pump devices having improved rotor design are provided herein. Such blood pump devices include rotors having cantilevered support through a sealed mechanical bearing disposed outside a blood flow path of the device so as to avoid thrombus formation caused by blood contact with the bearing. The bearing means can be rotatably coupled with a proximal portion of the rotor shaft extending outside the fluid path, while a stator drives rotation of the rotor shaft so that one or more rotor blades on a distal portion of the rotor force blood flow through the device. The bearing means may include one or more radial bearings on a proximal portion of the rotor shaft that are isolated from the blood flow path by one or more rotary seals.
    Type: Grant
    Filed: July 21, 2016
    Date of Patent: July 24, 2018
    Assignee: TC1 LLC
    Inventor: William V. Hodges
  • Patent number: 9985374
    Abstract: An implantable connector utilizing having improved electrical and mechanical properties is described herein. In one aspect, the implantable connector utilizes electrical contact pins fabricated from a corrosion resistant metal alloy, such as platinum-iridium, that engage longitudinally and include one or more urging members on a proximal portion of the pin so as to provide at least a desired contact force between conductively coupled pins. Such a configuration allows contact between contact pins to be maintained in applications where the connector may be subject to movement and further allows for reduced resistance so as to allow transmission of voltages and current associated with higher powered implanted devices. In some embodiments, the urging member is defined as a helical cut potion in one or both electrical contacts. Methods of use and manufacture of such connectors are also provided herein.
    Type: Grant
    Filed: May 5, 2017
    Date of Patent: May 29, 2018
    Assignee: TC1 LLC
    Inventor: William V. Hodges
  • Publication number: 20170324185
    Abstract: An implantable connector utilizing having improved electrical and mechanical properties is described herein. In one aspect, the implantable connector utilizes electrical contact pins fabricated from a corrosion resistant metal alloy, such as platinum-iridium, that engage longitudinally and include one or more urging members on a proximal portion of the pin so as to provide at least a desired contact force between conductively coupled pins. Such a configuration allows contact between contact pins to be maintained in applications where the connector may be subject to movement and further allows for reduced resistance so as to allow transmission of voltages and current associated with higher powered implanted devices. In some embodiments, the urging member is defined as a helical cut potion in one or both electrical contacts. Methods of use and manufacture of such connectors are also provided herein.
    Type: Application
    Filed: May 5, 2017
    Publication date: November 9, 2017
    Inventor: William V. Hodges
  • Publication number: 20170232168
    Abstract: A blood pump includes a hub having an axis of rotation and a generally cylindrical shape. The hub has an upstream end region, a central region, and a downstream end region, and the hub includes a magnetic material. Blades that are disposed on the downstream end region of the hub extend downstream of the hub.
    Type: Application
    Filed: November 22, 2016
    Publication date: August 17, 2017
    Inventors: Steven H. Reichenbach, Stephen G. Briana, William V. Hodges, Eric Lee, Yi-Ren Woo, Onur Dur, David Gary Eldridge, Pieter W.C.J le Blanc
  • Publication number: 20170021069
    Abstract: Blood pump devices having improved rotor design are provided herein. Such blood pump devices include rotors having cantilevered support through a sealed mechanical bearing disposed outside a blood flow path of the device so as to avoid thrombus formation caused by blood contact with the bearing. The bearing means can be rotatably coupled with a proximal portion of the rotor shaft extending outside the fluid path, while a stator drives rotation of the rotor shaft so that one or more rotor blades on a distal portion of the rotor force blood flow through the device. The bearing means may include one or more radial bearings on a proximal portion of the rotor shaft that are isolated from the blood flow path by one or more rotary seals.
    Type: Application
    Filed: July 21, 2016
    Publication date: January 26, 2017
    Inventor: William V. Hodges
  • Patent number: 9533082
    Abstract: A blood pump includes a hub having an axis of rotation and a generally cylindrical shape. The hub has an upstream end region, a central region, and a downstream end region, and the hub includes a magnetic material. Blades that are disposed on the downstream end region of the hub extend downstream of the hub.
    Type: Grant
    Filed: September 17, 2014
    Date of Patent: January 3, 2017
    Assignee: THORATEC CORPORATION
    Inventors: Steven H. Reichenbach, Stephen G. Briana, William V. Hodges, Eric Lee, Yi-Ren Woo, Onur Dur, David Gary Eldridge, Pieter W. C. J. le Blanc
  • Publication number: 20160375187
    Abstract: Blood pumps for ventricular assist devices employ a hollow rotor to impel blood through the blood pump. A blood pump includes a housing having a housing inlet, a housing outlet, and a housing blood flow channel through which the housing inlet and the housing outlet are in fluid communication. A motor stator is disposed around the housing blood flow channel and operable to generate a rotating magnetic field. A hollow rotor is disposed within the housing blood flow channel and rotated via the rotating magnetic field. The hollow rotor has a rotor circumferential wall enclosing a rotor blood flow channel. The hollow rotor has at least one rotor blade extending inwardly from the rotor circumferential wall. The at least one rotor blade is configured to impel blood through the rotor blood flow channel when the hollow rotor is rotated via the rotating magnetic field.
    Type: Application
    Filed: June 29, 2016
    Publication date: December 29, 2016
    Inventors: Eric T. Lee, William V. Hodges, Yi-Ren Woo
  • Publication number: 20160206795
    Abstract: A blood pump includes a rotor having a flared portion downstream proximate a downstream bearing that supports the rotor. The flared portion of the rotor includes a width greater than a width of an upstream portion of the rotor. A blood pump also includes a housing having an internal wall with a flared portion downstream of a motor stator and proximate a transverse outlet.
    Type: Application
    Filed: December 29, 2015
    Publication date: July 21, 2016
    Inventors: Steven H. Reichenbach, Pieter W.C.J. le Blanc, Yi-Ren Woo, David Gary Eldridge, Stephen G. Briana, William V. Hodges, Eric Lee
  • Patent number: 9265870
    Abstract: A blood pump includes a rotor having a flared portion downstream proximate a downstream bearing that supports the rotor. The flared portion of the rotor includes a width greater than a width of an upstream portion of the rotor. A blood pump also includes a housing having an internal wall with a flared portion downstream of a motor stator and proximate a transverse outlet.
    Type: Grant
    Filed: October 13, 2011
    Date of Patent: February 23, 2016
    Assignee: THORATEC CORPORATION
    Inventors: Steven H. Reichenbach, Pieter W. C. J. le Blanc, Yi-Ren Woo, David Gary Eldridge, Stephen G. Briana, William V. Hodges, Eric Lee
  • Publication number: 20150005572
    Abstract: A blood pump includes a hub having an axis of rotation and a generally cylindrical shape. The hub has an upstream end region, a central region, and a downstream end region, and the hub includes a magnetic material. Blades that are disposed on the downstream end region of the hub extend downstream of the hub.
    Type: Application
    Filed: September 17, 2014
    Publication date: January 1, 2015
    Inventors: Steven H. Reichenbach, Stephen G. Briana, William V. Hodges, Eric Lee
  • Patent number: 8864643
    Abstract: A blood pump includes a hub having an axis of rotation and a generally cylindrical shape. The hub has an upstream end region, a central region, and a downstream end region, and the hub includes a magnetic material. Blades that are disposed on the downstream end region of the hub extend downstream of the hub.
    Type: Grant
    Filed: October 12, 2012
    Date of Patent: October 21, 2014
    Assignee: Thoratec Corporation
    Inventors: Steven H. Reichenbach, Stephen G. Briana, William V. Hodges, Eric Lee