Patents by Inventor Robert Stevenson

Robert Stevenson 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: 20210205616
    Abstract: A hermetically sealed feedthrough assembly for an active implantable medical device having an oxide-resistant electrical attachment for connection to an EMI filter, an EMI filter circuit board, an AIMD circuit board, or AIMD electronics. The oxide-resistant electrical attachment, including an oxide-resistant sputter layer 165 is disposed on the device side surface of the hermetic seal ferrule over which an ECA stripe is provided. The ECA stripe may comprise one of a thermal-setting electrically conductive adhesive, an electrically conductive polymer, an electrically conductive epoxy, an electrically conductive silicone, an electrically conductive polyimides, or an electrically conductive polyimide, such as those manufactured by Ablestick Corporation. The oxide-free electrical attachment between the ECA stripe and the filter or AIMD circuits may comprise one of gold, platinum, palladium, silver, iridium, rhenium, rhodium, tantalum, tungsten, niobium, zirconium, vanadium, and combinations or alloys thereof.
    Type: Application
    Filed: February 22, 2021
    Publication date: July 8, 2021
    Inventors: Christine A. Frysz, Robert A. Stevenson, Jason Woods
  • Publication number: 20210162220
    Abstract: A feedthrough for an AIMD is described. The feedthrough includes an electrically conductive ferrule having a ferrule sidewall defining a ferrule opening. The ferrule sidewall has a height. At least one recessed pocket has a depth extending part-way through the height of the ferrule. An oxide-resistant pocket-pad is nested in the recessed pocket. An electrical connection material is supported on the pocket-pad for making an oxide-resistant electrical connection to the ferrule. An insulator is hermetically sealed to the ferrule in the ferrule opening. At least one active via hole extends through the insulator with an active conductive pathway residing in and hermetically sealed to the insulator in the active via hole.
    Type: Application
    Filed: February 9, 2021
    Publication date: June 3, 2021
    Inventors: Christine A. Frysz, Robert A. Stevenson, Jason Woods
  • Publication number: 20210153734
    Abstract: A device for anorectal and/or gynaecological procedures is provided in order to improve surgical access and visual field. The device has a hollow elongate body, and an opening at the proximal end, defining an open working channel in the hollow body, and a window aperture for providing access to surrounding tissue. In addition, one or more wings are dependent from the body to aid manipulation of the device. The device further includes an illumination device and a suction passageway located within the body wherein the illumination device forms at least part of a perimeter wall of the suction passageway.
    Type: Application
    Filed: August 29, 2018
    Publication date: May 27, 2021
    Inventors: Andrew Robert Stevenson, Gregory Brian O'Grady, John Bilkey Davidson, Robert Bruce Davidson
  • Publication number: 20210154483
    Abstract: A feedthrough for an AIMD includes a ferrule with an insulator hermetically sealing a ferrule opening, both cooperatively separating a body fluid side from a device side. A circuit board disposed adjacent to the insulator device side has a ground plate or ground trace electrically connected to a circuit board ground conductive pathway disposed in a circuit board ground via hole. An anisotropic conductive layer disposed between the circuit board and the insulator device side has an electrically insulative matrix supporting a plurality of electrically conductive particles. The anisotropic conductive layer has a first thickness where at least one first electrically conductive particle is longitudinally aligned and in electrical contact with the ferrule and the circuit board ground conductive pathway electrically connected to the at least one circuit board ground plate or ground trace.
    Type: Application
    Filed: February 2, 2021
    Publication date: May 27, 2021
    Inventors: Robert A. Stevenson, Christine A. Frysz, Keith W. Seitz, Brian P. Hohl, Marc Gregory Martino
  • Patent number: 11013928
    Abstract: An EMI/energy dissipating filter for an active implantable medical device (AIMD) is described. The filter comprises a first gold braze hermetically sealing the insulator to a ferrule that is configured to be mounted in an opening in a housing for the AIMD. A lead wire is hermetically sealed in a passageway through the insulator by a second gold braze. A circuit board substrate is disposed adjacent the insulator. A two-terminal chip capacitor disposed adjacent to the circuit board has an active end metallization that is electrically connected to the active electrode plates and a ground end metallization that is electrically connected to the at least one ground electrode plates of the chip capacitor. There is a ground path electrically extending between the ground end metallization of the chip capacitor and the ferrule.
    Type: Grant
    Filed: July 25, 2018
    Date of Patent: May 25, 2021
    Assignee: Greatbatch Ltd.
    Inventors: Robert A. Stevenson, Christine A. Frysz, Richard L. Brendel
  • Publication number: 20210112887
    Abstract: A pair of pants or suit includes a sealable opening for relief of bodily fluids. A frame is sealed in a waterproof manner to the pair of pants or suit disposed in a groin section, the frame forming a frame aperture separating an outside and inside of the pair of pants or suit. A lid is movably connected to the frame disposed on the outside of the pair of pants or suit and configured to engage the frame aperture, wherein the lid in an open position allows access through the frame aperture and the lid in a closed position does not allow access through the frame aperture. A seal is disposed between the frame and the lid forming a waterproof closure of the frame aperture when the lid is in the closed position.
    Type: Application
    Filed: December 24, 2020
    Publication date: April 22, 2021
    Inventors: Robert A. Stevenson, Wendy L. Stevenson
  • Publication number: 20210038902
    Abstract: An enhanced RF switchable filtered feedthrough for real-time identification of the electrical and physical integrity of an implanted AIMD lead includes a DOUBLE POLE RF switch disposed on the device side. Additionally, the RF switchable filtered feedthrough can optionally include transient voltage suppressors (TVS) and an MRI mode. In an embodiment, a DOUBLE POLE RF switch selectively disconnects EMI filter capacitors so that an RF test/interrogation signal is sent from the AIMD down into an implanted lead(s). The reflected RF signal is then analyzed to assess implanted lead integrity including lead body anomalies, lead insulation defects, and/or lead conductor defects. The Double Pole switch is configured to be controlled by an AIMD control signal to switch between FIRST and SECOND THROW positions.
    Type: Application
    Filed: October 22, 2020
    Publication date: February 11, 2021
    Inventors: Robert A. Stevenson, Keith W. Seitz, Jason Woods, Christine A. Frysz
  • Patent number: 10912945
    Abstract: A filter feedthrough for an AIMD includes an electrically conductive ferrule. An insulator hermetically seals a ferrule opening with either a first gold braze, a ceramic seal, a glass seal or a glass-ceramic seal. At least one conductive pathway is hermetically sealed to and disposed through the insulator body in non-conductive relationship with the ferrule. A feedthrough capacitor includes at least one active and ground electrode plate disposed within a capacitor dielectric and electrically connected to a capacitor active metallization and a capacitor ground metallization, respectively. At least a first edge of the feedthrough capacitor extends beyond a first outermost edge of the ferrule. At least a second edge of the feedthrough capacitor does not extend beyond a second outermost edge of the ferrule, or said differently, the second edge is either aligned with or setback from the second outermost edge of the ferrule.
    Type: Grant
    Filed: March 21, 2019
    Date of Patent: February 9, 2021
    Assignee: Greatbatch Ltd.
    Inventors: Robert A. Stevenson, Christine A. Frysz, Jason Woods
  • Patent number: 10905888
    Abstract: A filter feedthrough for an AIMD includes ferrule with an insulator hermetically sealing a ferrule opening, both cooperatively separating a body fluid side from a device side. A first conductive pathway is hermetically sealed to and disposed through the insulator. A feedthrough capacitor is disposed on the device side and includes at least one active electrode plate disposed parallel and spaced from at least one ground electrode plate within a capacitor dielectric. A capacitor active metallization is electrically connected to the active electrode plate and is in non-electrically conductive relation with the ground electrode plate. A capacitor ground metallization is electrically connected to the ground electrode plate and is in non-electrically conductive relation with the active electrode plate. An anisotropic conductive layer is disposed on the device side. The anisotropic conductive layer electrically connects the capacitor active metallization to the first conductive pathway.
    Type: Grant
    Filed: March 22, 2019
    Date of Patent: February 2, 2021
    Assignee: Greatbatch Ltd.
    Inventors: Robert A. Stevenson, Christine A. Frysz, Keith W. Seitz, Brian P. Hohl, Marc Gregory Martino
  • Patent number: 10881867
    Abstract: A method for making a dielectric substrate configured for incorporation into a hermetically sealed feedthrough is described. The method includes forming a via hole through a green-state dielectric substrate. A platinum-containing paste is filled into at least 90% of the volume of the via hole. The green-state dielectric substrate is then subjected to a heating protocol including: a binder bake-out heating portion performed at a temperature ranging from about 400° C. to about 700° C. for a minimum of 4 hours; a sintering heating portion performed at a temperature ranging from about 1,400° C. to about 1,900° C. for up to 6 hours; and a cool down portion at a rate of up to 5°/minute from a maximum sintering temperature down to about 1,000° C., then naturally to room temperature. The thusly manufacture dielectric substrate is then positioned in an opening in a ferrule that is configured to be attached to a metal housing of an active implantable medical device.
    Type: Grant
    Filed: December 10, 2019
    Date of Patent: January 5, 2021
    Assignee: Greatbatch Ltd.
    Inventors: Robert A. Stevenson, Xiaohong Tang, William C. Thiebolt, Christine A. Frysz, Keith W. Seitz, Richard L. Brendel, Thomas Marzano, Jason Woods, Dominick J. Frustaci, Steven W. Winn
  • Patent number: 10874150
    Abstract: A frame is sealed in a waterproof manner to a pair of pants and/or waders, where the frame forms a frame aperture separating an outside from an inside of the pair of pants and/or waders. A lid is pivotably connected to the frame where the lid in an open position allows access through the frame aperture and the lid in a closed position does not. A seal is disposed between the frame and the lid forming a waterproof closure of the frame aperture when the lid is in the closed position. A latch is movably connected to the frame, the latch having an engagement surface configured for a user to press against. A protective protrusion is attached to the lid, wherein the engagement surface and the protective protrusion cooperatively form a finger gap configured to allow the user access to press against the engagement surface.
    Type: Grant
    Filed: June 19, 2019
    Date of Patent: December 29, 2020
    Inventors: Robert A. Stevenson, Wendy L. Stevenson
  • Patent number: 10874866
    Abstract: A three-terminal flat-through EMI/energy dissipating filter comprises an active electrode plate through which a circuit current passes between a first terminal and a second terminal, a first shield plate on a first side of the active electrode plate, and second shield plate on a second side of the active electrode plate opposite the first shield plate. The first and second shield plates are conductively coupled to a grounded third terminal. Both the effective capacitance area or overlapping surface area of the active electrode plate and the surrounding ground shield plates and the dielectric constant of the insulating layers between the active electrode plate and the ground shield plates is raised to achieve a higher capacitance value for the three-terminal flat-through capacitor.
    Type: Grant
    Filed: April 16, 2019
    Date of Patent: December 29, 2020
    Assignee: Greatbatch Ltd.
    Inventors: Robert A. Stevenson, Christine A. Frysz, Richard L. Brendel
  • Publication number: 20200390689
    Abstract: Embodiments of topical formulations for administering cerdulatinib or a pharmaceutically acceptable salt, hydrate or solvate thereof are disclosed. Embodiments of methods for preparing the topical formulations are also disclosed. The disclosed formulations are suitable for the treatment of dermatologic conditions such as atopic dermatitis.
    Type: Application
    Filed: January 9, 2019
    Publication date: December 17, 2020
    Inventors: Charles Rodney Greenaway EVANS, Cameron Robert STEVENSON, Marc Barry BROWN
  • Publication number: 20200383975
    Abstract: Compositions for topical administration of a hedgehog inhibitor compound are described. In one embodiment, the hedgehog inhibitor compound is patidegib and the topical composition comprises the compound in a solvent system of a monohydric primary alcohol and a polyol in a w/w ratio of between about 0.9-1.8. In another embodiment, the hedgehog inhibitor is itraconazole and the topical composition comprises the compound in a solvent system comprising a monohydric primary alcohol and an optionally lower alkyl end-capped oligomeric alkylene glycol in a w/w ratio of between about 0.8 and 2.6 and a fused bicyclic ether. Method of using the compositions are also described, where in one embodiment, the compositions are topically applied for treating or preventing basal cell carcinoma.
    Type: Application
    Filed: May 19, 2020
    Publication date: December 10, 2020
    Inventors: Marc Barry Brown, Cameron Robert Stevenson, Charles Rodney Greenaway Evans
  • Patent number: 10857369
    Abstract: An EMI/energy dissipating filter for an active implantable medical device (AIMD) is described. The filter comprises a first gold braze hermetically sealing the insulator to a ferrule that is configured to be mounted in an opening in a housing for the AIMD. A lead wire is hermetically sealed in a passageway through the insulator by a second gold braze. A circuit board substrate is disposed adjacent the insulator. A two-terminal chip capacitor disposed adjacent to the circuit board has an active end metallization that is electrically connected to the active electrode plates and a ground end metallization that is electrically connected to the at least one ground electrode plates of the chip capacitor. There is a ground path electrically extending between the ground end metallization of the chip capacitor and the ferrule.
    Type: Grant
    Filed: March 26, 2019
    Date of Patent: December 8, 2020
    Assignee: Greatbatch Ltd.
    Inventors: Robert A. Stevenson, Christine A. Frysz, Richard L. Brendel
  • Patent number: 10828498
    Abstract: An enhanced RF switchable filtered feedthrough for real-time identification of the electrical and physical integrity of an implanted AIMD lead includes a DOUBLE POLE RF switch disposed on the device side. Additionally, the RF switchable filtered feedthrough can optionally include transient voltage suppressors (TVS) and an MRI mode. In an embodiment, a DOUBLE POLE RF switch selectively disconnects EMI filter capacitors so that an RF test/interrogation signal is sent from the AIMD down into an implanted lead(s). The reflected RF signal is then analyzed to assess implanted lead integrity including lead body anomalies, lead insulation defects, and/or lead conductor defects. The Double Pole switch is configured to be controlled by an AIMD control signal to switch between FIRST and SECOND THROW positions.
    Type: Grant
    Filed: April 21, 2020
    Date of Patent: November 10, 2020
    Assignee: Greatbatch Ltd.
    Inventors: Robert A. Stevenson, Keith W. Seitz, Jason Woods, Christine A. Frysz
  • Publication number: 20200276440
    Abstract: A filtered feedthrough assembly includes a ferrule configured to be installed in an AIMD housing. An insulator is disposed within a ferrule opening. A conductive pathway is disposed within a passageway through the insulator. A filter capacitor is disposed on a device side having active and ground electrode plates disposed within a capacitor dielectric k greater than 0 and less than 1,000. A capacitor active metallization is electrically connected to the active electrode plates. A ground capacitor metallization is electrically connected to the ground electrode plates. The filter capacitor is the first filter capacitor electrically connected to the conductive pathway coming from a body fluid side into the device side. An active electrical connection electrically connects the conductive pathway to the capacitor active metallization. A ground electrical connection electrically connects the ground capacitor metallization to the ferrule. The filter capacitor is a flat-through or an X2Y attenuator filter capacitor.
    Type: Application
    Filed: May 21, 2020
    Publication date: September 3, 2020
    Inventors: Robert A. Stevenson, Christine A. Frysz, Thomas Marzano, Keith A. Seitz
  • Publication number: 20200269198
    Abstract: An expansion chamber includes a chamber body having a top portion above a bottom portion cooperatively forming a hollow chamber volume configured to temporarily contain an expansion of bubbles during an aeration process for aerating a liquid, including wine and other alcoholic beverages. The bottom portion has a bottom opening configured to engage an opening of an uncorked and/or opened wine bottle. The top portion has a top opening. The hollow chamber volume is configured to be in fluid communication with an inside of the uncorked and/or opened bottle when the bottom opening is engaged with the opening of the uncorked and/or opened bottle. A maximum inside diameter of the hollow chamber volume in a horizontal plane with respect to the uncorked and/or opened wine bottle set upon a horizontal surface is cooperatively formed between the top and bottom portions, wherein the maximum inside diameter is at least 2.50 inches.
    Type: Application
    Filed: May 14, 2020
    Publication date: August 27, 2020
    Inventors: Robert A. Stevenson, Wendy L. Stevenson, Jennifer L. Stevenson, Ryan A. Stevenson, Anthony Ismael Lopez
  • Publication number: 20200246625
    Abstract: An enhanced RF switchable filtered feedthrough for real-time identification of the electrical and physical integrity of an implanted AIMD lead includes a DOUBLE POLE RF switch disposed on the device side. Additionally, the RF switchable filtered feedthrough can optionally include transient voltage suppressors (TVS) and an MRI mode. In an embodiment, a DOUBLE POLE RF switch selectively disconnects EMI filter capacitors so that an RF test/interrogation signal is sent from the AIMD down into an implanted lead(s). The reflected RF signal is then analyzed to assess implanted lead integrity including lead body anomalies, lead insulation defects, and/or lead conductor defects. The Double Pole switch is configured to be controlled by an AIMD control signal to switch between FIRST and SECOND THROW positions.
    Type: Application
    Filed: April 21, 2020
    Publication date: August 6, 2020
    Inventors: Robert A. Stevenson, Keith W. Seitz, Jason Woods, Christine A. Frysz
  • Patent number: RE48348
    Abstract: A feedthrough filter capacitor assembly includes a conductive terminal pin which extends through a first passageway of a capacitor in conductive relation with a first set of electrode plates, and through a conductive ferrule and an insulator in non-conductive relation. The insulator includes ground plates conductively coupled to the ferrule. A second set of electrode plates of the capacitor are conductively coupled to the insulator ground plates, such as by a ground pin extending through the capacitor in relation with the second set of electrode plates, and at least partially extending through a second passageway of the insulator in conductive relation with the ground plates. In this manner, the exterior electrical/mechanical connection between the capacitor and ferrule or other ground member is eliminated.
    Type: Grant
    Filed: December 4, 2017
    Date of Patent: December 8, 2020
    Assignee: Greatbatch Ltd.
    Inventor: Robert A. Stevenson