Patents by Inventor Dean Schaefer

Dean Schaefer 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).

  • Patent number: 12053403
    Abstract: The present teachings provide a medical system for delivering and deploying a medical implant, and the method of using thereof. Specifically, one aspect of the present teachings provides a medical system having an implant with an engagement loop, and a delivery system having an engagement wire and an engagement mechanism. During implant delivery, the engagement wire engages the engagement loop of the implant. The engagement wire further interacts with the engagement mechanism in order to prevent unintended disengagement of the engagement loop from the engagement wire. The present teaching also provide an implant release mechanism that is configured to break away from the implant pusher shaft. Specially, one aspect of the present teaching provides that the implant release mechanism being of one unit with the implant pusher shaft. To release the implant, a clinician simply breaks away the implant release mechanism from the rest of the implant delivery system.
    Type: Grant
    Filed: July 11, 2019
    Date of Patent: August 6, 2024
    Assignee: SHANGHAI WALLABY MEDICAL TECHNOLOGIES CO., INC.
    Inventors: Earl Bardsley, Dean Schaefer, Jerome Choe, Tan Dinh, Luis Cardenas, Chengcheng Feng, Cheng Ian, Paul Dao, Paul Ehlinger
  • Publication number: 20230107778
    Abstract: Intrasaccular devices and methods of implanting the devices in an aneurysm are described. The device includes an expandable body comprising a plurality of elongate filamentary elements each having a first and a second end. Each of the plurality of elongate filamentary elements extends from a first end of the device to a second end of the device and back to the first end of the device. The first and second ends of each of the plurality of elongate members are coupled at the first end of the device in a hub. The device may further include a defect spanning structure made of a mesh.
    Type: Application
    Filed: December 8, 2022
    Publication date: April 6, 2023
    Inventors: Brian J. Cox, Dean Schaefer, Robert F. Rosenbluth
  • Publication number: 20220117607
    Abstract: Methods of implanting a device in the lumen of a blood vessel are described. The method includes providing a microcatheter and a device. The device includes a first hub, a second hub, a support structure including a plurality of struts disposed between the first hub and the second hub, and a layer of material disposed over the plurality of struts. The support structure has a low profile, radially constrained state with an elongated tubular configuration suitable for delivery from a microcatheter. The support structure also has an expanded state, a smooth outer surface, and has an axially shortened configuration relative to the radially constrained state. The microcatheter is advanced to a region of interest within the blood vessel. The support structure is advanced through the lumen of and out the distal end of the microcatheter where it expands to the expanded state.
    Type: Application
    Filed: November 4, 2021
    Publication date: April 21, 2022
    Inventors: Brian J. Cox, Dean Schaefer, Robert F. Rosenbluth
  • Publication number: 20220079738
    Abstract: A system and method are provided for treating an aneurysm or other vessel disease or defect. The present disclosure includes an expandable device for placement in a vessel, where the mechanically expandable device includes a membrane. Also disclosed is a delivery device constructed and arranged to position the expandable device such that the exterior surface of the expandable device engages with the inner surface of the vessel and maintains a fluid pathway through said vessel.
    Type: Application
    Filed: April 26, 2021
    Publication date: March 17, 2022
    Inventors: Dean SCHAEFER, Felizardo Gratila BATIAO, Siew Yin LEE, J. Christopher FLAHERTY, Dhirendra SINGH
  • Patent number: 11179159
    Abstract: Methods of implanting a device in the lumen of a blood vessel are described. The method includes providing a microcatheter and a device. The device includes a first hub, a second hub, a support structure including a plurality of struts disposed between the first hub and the second hub, and a layer of material disposed over the plurality of struts. The support structure has a low profile, radially constrained state with an elongated tubular configuration suitable for delivery from a microcatheter. The support structure also has an expanded state, a smooth outer surface, and has an axially shortened configuration relative to the radially constrained state. The microcatheter is advanced to a region of interest within the blood vessel. The support structure is advanced through the lumen of and out the distal end of the microcatheter where it expands to the expanded state.
    Type: Grant
    Filed: May 15, 2017
    Date of Patent: November 23, 2021
    Assignee: SEQUENT MEDICAL, INC.
    Inventors: Brian J. Cox, Dean Schaefer, Robert F. Rosenbluth
  • Publication number: 20210353446
    Abstract: The present teachings provide a medical system for delivering and deploying a medical implant, and the method of using thereof. Specifically, one aspect of the present teachings provides a medical system having an implant with an engagement loop, and a delivery system having an engagement wire and an interface. During implant delivery, the engagement wire engages the engagement loop of the implant. The engagement wire further interacts with the interface in order to prevent unintended disengagement of the engagement loop from the engagement wire. Certain embodiment of the present teaching also includes an implant release control mechanism fixedly attaching to a proximal end of the engagement wire. During implant delivery, the implant release control mechanism attaches the proximal end of the delivery system. During implant deployment, the implant release control mechanism detaches the proximal end of the delivery system.
    Type: Application
    Filed: January 28, 2021
    Publication date: November 18, 2021
    Applicant: SHANGHAI WALLABY MEDICAL TECHNOLOGIES CO., INC.
    Inventors: Earl BARDSLEY, Dean SCHAEFER, Jerome CHOE, Tan DINH, Luis CARDENAS, Mindy FENG, Cheng IAN, Paul DAO, Jonathan POLANSKY, J. Christopher FLAHERTY, Paul EHLINGER
  • Publication number: 20210275337
    Abstract: The present teachings provide a medical system for delivering and deploying a medical implant, and the method of using thereof. Specifically, one aspect of the present teachings provides a medical system having an implant with an engagement loop, and a delivery system having an engagement wire and an engagement mechanism. During implant delivery, the engagement wire engages the engagement loop of the implant. The engagement wire further interacts with the engagement mechanism in order to prevent unintended disengagement of the engagement loop from the engagement wire. The present teaching also provide an implant release mechanism that is configured to break away from the implant pusher shaft. Specially, one aspect of the present teaching provides that the implant release mechanism being of one unit with the implant pusher shaft. To release the implant, a clinician simply breaks away the implant release mechanism from the rest of the implant delivery system.
    Type: Application
    Filed: July 11, 2019
    Publication date: September 9, 2021
    Applicant: SHANGHAI WALLABY MEDICAL TECHNOLOGIES CO., INC.
    Inventors: Earl BARDSLEY, Dean SCHAEFER, Jerome Choe, Tan DINH, Luis CARDENAS, Chengcheng FENG, Cheng Ian, Paul Dao, Paul EHLINGER
  • Patent number: 10987208
    Abstract: A system and method are provided for treating an aneurysm or other vessel disease or defect. The present disclosure includes an expandable device for placement in a vessel, where the mechanically expandable device includes a membrane. Also disclosed is a delivery device constructed and arranged to position the expandable device such that the exterior surface of the expandable device engages with the inner surface of the vessel and maintains a fluid pathway through said vessel.
    Type: Grant
    Filed: April 5, 2013
    Date of Patent: April 27, 2021
    Assignee: MERLIN MD PTE LTD.
    Inventors: Dean Schaefer, Felizardo Gratila Batiao, Siew Yin Lee, J. Christopher Flaherty, Dhirendra Singh
  • Patent number: 10932933
    Abstract: The present teachings provide a medical system for delivering and deploying a medical implant, and the method of using thereof. Specifically, one aspect of the present teachings provides a medical system having an implant with an engagement loop, and a delivery system having an engagement wire and an interface. During implant delivery, the engagement wire engages the engagement loop of the implant. The engagement wire further interacts with the interface in order to prevent unintended disengagement of the engagement loop from the engagement wire. Certain embodiment of the present teaching also includes an implant release control mechanism fixedly attaching to a proximal end of the engagement wire. During implant delivery, the implant release control mechanism attaches the proximal end of the delivery system. During implant deployment, the implant release control mechanism detaches the proximal end of the delivery system.
    Type: Grant
    Filed: May 28, 2017
    Date of Patent: March 2, 2021
    Assignee: SHANGHAI WALLABY MEDICAL TECHNOLOGIES CO., INC.
    Inventors: Earl Bardsley, Dean Schaefer, Jerome Choe, Tan Dinh, Luis Cardenas, Mindy Feng, Cheng Ian, Paul Dao, Jonathan Polansky, J Christopher Flaherty, Paul Ehlinger
  • Publication number: 20200229957
    Abstract: The present teachings provide a medical system for delivering and deploying a medical implant, and the method of using thereof. Specifically, one aspect of the present teachings provides a medical system having an implant with an engagement loop, and a delivery system having an engagement wire and an interface. During implant delivery, the engagement wire engages the engagement loop of the implant. The engagement wire further interacts with the interface in order to prevent unintended disengagement of the engagement loop from the engagement wire. Certain embodiment of the present teaching also includes an implant release control mechanism fixedly attaching to a proximal end of the engagement wire. During implant delivery, the implant release control mechanism attaches the proximal end of the delivery system. During implant deployment, the implant release control mechanism detaches the proximal end of the delivery system.
    Type: Application
    Filed: May 28, 2017
    Publication date: July 23, 2020
    Applicant: WALLABY MEDICAL, INC.
    Inventors: Earl BARDSLEY, Dean SCHAEFER, Jerome CHOE, Tan DINH, Luis CARDENAS, Mindy FENG, Cheng IAN, Paul DAO, Jonathan POLANSKY, J Christopher FLAHERTY, Paul EHLINGER
  • Publication number: 20190240391
    Abstract: Devices, systems and methods are disclosed for the formation of an arteriovenous fistula in the limb of the patient. Embodiments include an apparatus for the creation, modification and maintenance of a fistula, including the modification of an existing dialysis fistula; and a method of supplying oxygenated blood to the venous circulation of a patient. A kit of anastomotic implants is described which supports a broad base of patient anatomies and fistula locations. The devices, systems and methods can be used to treat patients with one or more numerous ailments including chronic obstructive pulmonary disease, congestive heart failure, hypertension, hypotension, respiratory failure, pulmonary arterial hypertension, lung fibrosis and adult respiratory distress syndrome.
    Type: Application
    Filed: August 2, 2017
    Publication date: August 8, 2019
    Applicant: Rox Medical, Inc.
    Inventors: Rodney Brenneman, Dean A. Schaefer, J. Christopher Flaherty
  • Publication number: 20180206845
    Abstract: Devices, systems and methods are disclosed for the formation of an arteriovenous fistula in the limb of the patient. Embodiments include a device for the creation, modification and maintenance of a fistula that includes an integral fistula creation assembly near its distal end that passes through the skin of the patient, through a first vessel such as an artery, and into a second vessel such as a vein. The fistula creation assembly preferably includes an anastomotic implant that is placed within the fistula to maintain long-term blood flow therethrough. The devices, systems and methods can be used to treat patients with one or more numerous ailments including chronic obstructive pulmonary disease, congestive heart failure, hypertension, hypotension, respiratory failure, pulmonary arterial hypertension, lung fibrosis and adult respiratory distress syndrome.
    Type: Application
    Filed: March 23, 2018
    Publication date: July 26, 2018
    Inventors: Rodney BRENNEMAN, Dean A. SCHAEFER, J. Christopher FLAHERTY
  • Patent number: 9955970
    Abstract: Devices, systems and methods are disclosed for the formation of an arteriovenous fistula in the limb of the patient. Embodiments include a device for the creation, modification and maintenance of a fistula that includes an integral fistula creation assembly near its distal end that passes through the skin of the patient, through a first vessel such as an artery, and into a second vessel such as a vein. The fistula creation assembly preferably includes an anastomotic implant that is placed within the fistula to maintain long-term blood flow therethrough. The devices, systems and methods can be used to treat patients with one or more numerous ailments including chronic obstructive pulmonary disease, congestive heart failure, hypertension, hypotension, respiratory failure, pulmonary arterial hypertension, lung fibrosis and adult respiratory distress syndrome.
    Type: Grant
    Filed: September 29, 2015
    Date of Patent: May 1, 2018
    Assignee: Rox Medical, Inc.
    Inventors: Rodney Brenneman, Dean A. Schaefer, J. Christopher Flaherty
  • Patent number: 9782533
    Abstract: Devices, systems and methods are disclosed for the formation of an arteriovenous fistula in the limb of the patient. Embodiments include an apparatus for the creation, modification and maintenance of a fistula, including the modification of an existing dialysis fistula; and a method of supplying oxygenated blood to the venous circulation of a patient. A kit of anastomotic implants is described which supports a broad base of patient anatomies and fistula locations. The devices, systems and methods can be used to treat patients with one or more numerous ailments including chronic obstructive pulmonary disease, congestive heart failure, hypertension, hypotension, respiratory failure, pulmonary arterial hypertension, lung fibrosis and adult respiratory distress syndrome.
    Type: Grant
    Filed: January 23, 2013
    Date of Patent: October 10, 2017
    Assignee: Rox Medical, Inc.
    Inventors: Rodney Brenneman, Dean A. Schaefer, J. Christopher Flaherty
  • Publication number: 20170245862
    Abstract: Methods of implanting a device in the lumen of a blood vessel are described. The method includes providing a microcatheter and a device. The device includes a first hub, a second hub, a support structure including a plurality of struts disposed between the first hub and the second hub, and a layer of material disposed over the plurality of struts. The support structure has a low profile, radially constrained state with an elongated tubular configuration suitable for delivery from a microcatheter. The support structure also has an expanded state, a smooth outer surface, and has an axially shortened configuration relative to the radially constrained state. The microcatheter is advanced to a region of interest within the blood vessel. The support structure is advanced through the lumen of and out the distal end of the microcatheter where it expands to the expanded state.
    Type: Application
    Filed: May 15, 2017
    Publication date: August 31, 2017
    Applicant: SEQUENT MEDICAL, INC.
    Inventors: Brian J. Cox, Dean Schaefer, Robert F. Rosenbluth
  • Patent number: 9494181
    Abstract: A fastening assembly includes a fastener having a head with an underside and an elongated shaft extending therefrom. The fastener constructed of at least one of a refractory metal and a superalloy. A washer includes a body with an upper surface and an opposing lower surface which defines opening portion for receiving the elongated shaft of the fastener therethrough. The upper surface of the washer forms diffusion bonds with the underside of the head of the fastener when the washer and the fastener are held in contact at temperatures in excess of 500° C.
    Type: Grant
    Filed: December 13, 2013
    Date of Patent: November 15, 2016
    Assignee: GENERAL ELECTRIC COMPANY
    Inventors: Thomas Dean Schaefer, Gregory Alan Steinlage, Donald Robert Allen, Evan Michael Lampe
  • Publication number: 20160228122
    Abstract: Devices, systems and methods are disclosed for the formation of an arteriovenous fistula in the limb of the patient. Embodiments include a device for the creation, modification and maintenance of a fistula that includes an integral fistula creation assembly near its distal end that passes through the skin of the patient, through a first vessel such as an artery, and into a second vessel such as a vein. The fistula creation assembly preferably includes an anastomotic implant that is placed within the fistula to maintain long-term blood flow therethrough. The devices, systems and methods can be used to treat patients with one or more numerous ailments including chronic obstructive pulmonary disease, congestive heart failure, hypertension, hypotension, respiratory failure, pulmonary arterial hypertension, lung fibrosis and adult respiratory distress syndrome.
    Type: Application
    Filed: September 29, 2015
    Publication date: August 11, 2016
    Inventors: Rodney BRENNEMAN, Dean A. SCHAEFER, J. Christopher FLAHERTY
  • Patent number: 9259337
    Abstract: An expandable support structure and methods of use for treatment of a patient's cerebral aneurysm are described. The support structure includes a plurality of elongate support members each having first and second ends that are gathered at the first end of the support structure. Each elongate support member starts at the first end of the support structure, extends to an apex at the second end of the support structure, and extends back to the first end of the support structure. The support structure has a low profile, radially constrained state with an elongated tubular configuration having a low profile suitable for delivery from a microcatheter. The support structure also has an expanded relaxed state that defines a substantially globular shape.
    Type: Grant
    Filed: June 11, 2013
    Date of Patent: February 16, 2016
    Assignee: Sequent Medical, Inc.
    Inventors: Brian J Cox, Dean Schaefer, Robert F Rosenbluth
  • Publication number: 20160015396
    Abstract: Devices for treatment of a patient's vasculature are described. The device includes a first hub, a second hub, a support structure including a plurality of struts disposed between the first hub and the second hub, and a layer of material disposed over the plurality of struts. The support structure has a low profile, radially constrained state with an elongated tubular configuration suitable for delivery from a microcatheter. The support structure also has an expanded state, a smooth outer surface, and has an axially shortened configuration relative to the radially constrained state. The layer of material may be made from acrylic, silk, silicone, polyvinyl alcohol, polypropylene, polyester, PolyEtherEther Ketone (PEEK), polytetrafluoroethylene (PTFE), polycarbonate urethane (PCU), or polyurethane (PU). The support structure may be formed from a slotted tubular member.
    Type: Application
    Filed: September 29, 2015
    Publication date: January 21, 2016
    Applicant: SEQUENT MEDICAL, INC.
    Inventors: Brian J. Cox, Dean Schaefer, Robert F. Rosenbluth
  • Patent number: 9179916
    Abstract: Devices, systems and methods are disclosed for the formation of an arteriovenous fistula in the limb of the patient. Embodiments include a device for the creation, modification and maintenance of a fistula that includes an integral fistula creation assembly near its distal end that passes through the skin of the patient, through a first vessel such as an artery, and into a second vessel such as a vein. The fistula creation assembly preferably includes an anastomotic implant that is placed within the fistula to maintain long-term blood flow therethrough. The devices, systems and methods can be used to treat patients with one or more numerous ailments including chronic obstructive pulmonary disease, congestive heart failure, hypertension, hypotension, respiratory failure, pulmonary arterial hypertension, lung fibrosis and adult respiratory distress syndrome.
    Type: Grant
    Filed: January 3, 2014
    Date of Patent: November 10, 2015
    Assignee: ROX MEDICAL INC.
    Inventors: Rodney Brenneman, Dean A. Schaefer, J. Christopher Flaherty