Patents by Inventor Andrew H. Cragg

Andrew H. Cragg 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: 20190350589
    Abstract: The present disclosure describes an occlusion device and methods of delivering the occlusion device. The occlusion device can include an expandable structure configured to move between an unexpanded configuration and an expanded configuration. The expandable structure can be configured to have an expansion ratio of at least about 5:1. Further, the occlusion device can be configured to prevent substantially all fluid from flowing past the occlusion device when the occlusion device is in the expanded configuration in the vessel.
    Type: Application
    Filed: December 14, 2018
    Publication date: November 21, 2019
    Inventors: Andrew H. Cragg, John Logan, Brett E. Naglreiter, Scott R. Arp, Alejandro Espinosa, Nicholas A. Green, Victor M. Gamez
  • Publication number: 20190314034
    Abstract: A neurovascular occlusion device for occluding a vessel and a delivery system for delivering the occlusion device. The occlusion device can include a self-expandable support structure defining a concave occlusive component and an anchoring component separated by a neck component. The occlusive component can carry a functionally occlusive membrane configured to prevent substantially all fluid from flowing past the occlusion device when the occlusion device is expanded in the vessel.
    Type: Application
    Filed: June 27, 2019
    Publication date: October 17, 2019
    Inventors: Andrew H. Cragg, John Logan, Brett E. Naglreiter, Alejandro Espinosa
  • Publication number: 20190224440
    Abstract: A system for treating a patient suffering from obstructive sleep apnea or snoring is diclsoed. The system includes an air flow generator configured to deliver an air flow at a positive therapeutic pressure during the treatment, and an expiratory valve with an open pressure connected air flow generator. The open pressure is dependent on the therapeutic pressure from the air flow generator. The expiratory valve further exerts a back pressure upon each exhalation from the patient sufficient to create a pneumatic splint in the patient's respiratory tract. The exhalation from the patient has a first half followed by a second half and the back pressure is varied such that during the start of the first half the back pressure is between 0 and 50% of a peak back pressure and increases to a peak back pressure in the second half.
    Type: Application
    Filed: March 14, 2019
    Publication date: July 25, 2019
    Inventors: Andrew H. Cragg, John Logan, Haim Nissimov, Richard Ewers, Mark Adler, Eugene G. Chen, John Edwin Trusheim, John Nolting, Stephen William Anderson, Kevin Chen
  • Patent number: 10307562
    Abstract: A device for treating a patient suffering from obstructive sleep apnea or snoring can include an expiratory valve connected to a manifold. The expiratory valve can include a body portion including a feedback port configured to be connected to an air flow generator. The expiratory valve can include a plunger at least partially disposed in the body portion. The expiratory valve can include a pressurizing chamber positioned between an end of the plunger and an end of the expiratory valve. The pressurizing chamber can be configured to receive air from the air flow generator through the feedback port.
    Type: Grant
    Filed: May 15, 2014
    Date of Patent: June 4, 2019
    Assignee: FRESCA Medical, Inc.
    Inventors: Andrew H. Cragg, John Logan, Haim Nissimov, Richard Christian Ewers, Mark Alan Adler, Eugene G. Chen, John Edwin Trusheim, John Eugene Nolting, Stephen William Anderson, Kevin Nai Hong Chen
  • Patent number: 10285833
    Abstract: Stent delivery systems and associated methods for delivering stents are disclosed herein. In several embodiments, a handle assembly for delivering a stent from a tubular enclosure can include a first lead screw having a first lead thread of a first pitch and first handedness, a second lead screw having a second lead thread of a second pitch and second handedness different from the first handedness, and a housing defining threads of the first and second pitches. The first lead screw can be in mechanical communication with the tubular enclosure, and the second lead screw can be in mechanical communication with the stent. Upon rotation of a portion of the housing, the housing threads can engage the lead screws so as to induce simultaneous translations of the lead screws in opposite directions. The simultaneous translations are configured to deploy the stent from the tubular enclosure.
    Type: Grant
    Filed: August 9, 2013
    Date of Patent: May 14, 2019
    Assignee: Lombard Medical Limited
    Inventors: Andrew H. Cragg, John Logan, Nelson Quintana, Mahmood Dehdashtian, George Tsai
  • Publication number: 20190133601
    Abstract: A vascular occlusion device having an expandable frame that carries a membrane. The membrane can include a tubular portion configured to transition between an open configuration in which the tubular portion is configured to receive a guidewire and a closed configuration in which the tubular portion is configured to occlude blood flow.
    Type: Application
    Filed: June 7, 2018
    Publication date: May 9, 2019
    Inventors: Andrew H. Cragg, John Logan, Brett E. Naglreiter, Alejandro Espinosa
  • Patent number: 10272226
    Abstract: A device for treating a patient suffering from obstructive sleep apnea or snoring can include an expiratory valve connected to a manifold. The expiratory valve can include a body portion including a feedback port configured to be connected to an air flow generator. The expiratory valve can include a plunger at least partially disposed in the body portion. The expiratory valve can include a pressurizing chamber positioned between an end of the plunger and an end of the expiratory valve. The pressurizing chamber can be configured to receive air from the air flow generator through the feedback port.
    Type: Grant
    Filed: May 15, 2014
    Date of Patent: April 30, 2019
    Assignee: FRESCA MEDICAL, INC.
    Inventors: Andrew H. Cragg, John Logan, Haim Nissimov, Richard Christian Ewers, Mark Alan Adler, Eugene G. Chen, John Edwin Trusheim, John Eugene Nolting, Stephen William Anderson, Kevin Nai Hong Chen
  • Publication number: 20190076282
    Abstract: A gastric space filler device for treating obesity in a patient by reducing the stomach volume comprising an inflatable space filler and a safety element secured to the space filler, wherein the safety element yields a noticeable signal for causing removal of the space filler.
    Type: Application
    Filed: April 2, 2018
    Publication date: March 14, 2019
    Inventors: Rodolfo C. Quijano, Hosheng Tu, Andrew H. Cragg, Bobby Purkait
  • Publication number: 20190029692
    Abstract: Systems, methods, and devices for the treatment of acute ischemic stroke that provide immediate blood flow restoration to a vessel occluded by a clot and, after reestablishing blood flow, address the clot itself Immediate blood flow restoration advantageously can facilitate natural lysis of the clot and also can reduce or obviate the concern for distal embolization due to fragmentation of the clot. Several embodiments of the invention provide for progressive, or modular, treatment based upon the nature of the clot. For example, the progressive treatment can include immediate restoration of blood flow, in-situ clot management, and/or clot removal depending on the particular circumstances of the treatment. The in-situ clot management can include, for example, lysis, maceration, and/or removal.
    Type: Application
    Filed: October 1, 2018
    Publication date: January 31, 2019
    Inventors: David A. Ferrera, Andrew H. Cragg, John Fulkerson
  • Patent number: 10178995
    Abstract: The present disclosure describes an occlusion device and methods of delivering the occlusion device. The occlusion device can include an expandable structure configured to move between an unexpanded configuration and an expanded configuration. The expandable structure can be configured to have an expansion ratio of at least about 5:1. Further, the occlusion device can be configured to prevent substantially all fluid from flowing past the occlusion device when the occlusion device is in the expanded configuration in the vessel.
    Type: Grant
    Filed: October 17, 2014
    Date of Patent: January 15, 2019
    Assignee: NeuVT Limited
    Inventors: Andrew H. Cragg, John Logan, Brett E. Naglreiter, Scott R. Arp, Alejandro Espinosa, Nicholas A. Green, Victor M. Gamez
  • Patent number: 10123803
    Abstract: Systems, methods, and devices for the treatment of acute ischemic stroke that provide immediate blood flow restoration to a vessel occluded by a clot and, after reestablishing blood flow, address the clot itself. Immediate blood flow restoration advantageously can facilitate natural lysis of the clot and also can reduce or obviate the concern for distal embolization due to fragmentation of the clot. Several embodiments of the invention provide for progressive, or modular, treatment based upon the nature of the clot. For example, the progressive treatment can include immediate restoration of blood flow, in-situ clot management, and/or clot removal depending on the particular circumstances of the treatment. The in-situ clot management can include, for example, lysis, maceration, and/or removal.
    Type: Grant
    Filed: June 29, 2011
    Date of Patent: November 13, 2018
    Assignee: COVIDIEN LP
    Inventors: David A. Ferrera, Andrew H. Cragg, John Fulkerson
  • Patent number: 10016211
    Abstract: Systems, methods, and devices for the treatment of acute ischemic stroke that provide immediate blood flow restoration to a vessel occluded by a clot and, after reestablishing blood flow, address the clot itself. Immediate blood flow restoration advantageously can facilitate natural lysis of the clot and also can reduce or obviate the concern for distal embolization due to fragmentation of the clot. Several embodiments of the invention provide for progressive, or modular, treatment based upon the nature of the clot. For example, the progressive treatment can include immediate restoration of blood flow, in-situ clot management, and/or clot removal depending on the particular circumstances of the treatment. The in-situ clot management can include, for example, lysis, maceration, and/or removal.
    Type: Grant
    Filed: April 25, 2016
    Date of Patent: July 10, 2018
    Assignee: COVIDIEN LP
    Inventors: David A. Ferrera, Andrew H. Cragg, John Fulkerson
  • Patent number: 10010328
    Abstract: A vascular occlusion device having an expandable frame that carries a membrane. The membrane can include a tubular portion configured to transition between an open configuration in which the tubular portion is configured to receive a guidewire and a closed configuration in which the tubular portion is configured to occlude blood flow.
    Type: Grant
    Filed: October 9, 2015
    Date of Patent: July 3, 2018
    Assignee: NeuVT Limited
    Inventors: Andrew H. Cragg, John Logan, Brett E. Naglreiter, Alejandro Espinosa
  • Patent number: 9962276
    Abstract: A gastric space filler device for treating obesity in a patient by reducing the stomach volume comprising an inflatable space filler and a safety element secured to the space filler, wherein the safety element yields a noticeable signal for causing removal of the space filler.
    Type: Grant
    Filed: April 8, 2013
    Date of Patent: May 8, 2018
    Assignee: ReShape Medical LLC
    Inventors: Rodolfo C. Quijano, Hosheng Tu, Andrew H. Cragg, Bobby Purkait
  • Publication number: 20180015254
    Abstract: An enhanced flexibility catheter shaft having an elongate flexible body with a proximal end, a distal end, and at least one lumen extending therethrough.
    Type: Application
    Filed: July 12, 2017
    Publication date: January 18, 2018
    Inventors: Andrew H. Cragg, John Logan, Scott Arp
  • Publication number: 20180015248
    Abstract: An enhanced flexibility catheter shaft having an elongate flexible body with a proximal end, a distal end, and at least one lumen extending therethrough.
    Type: Application
    Filed: July 24, 2017
    Publication date: January 18, 2018
    Inventors: John Logan, Stephen W. Anderson, Andrew H. Cragg
  • Patent number: 9848883
    Abstract: The present disclosure describes an occlusion device and methods of delivering the occlusion device. The occlusion device can include an expandable structure configured to move between an unexpanded configuration and an expanded configuration. The expandable structure can be configured to have an expansion ratio of at least about 5:1. Further, the occlusion device can be configured to prevent substantially all fluid from flowing past the occlusion device when the occlusion device is in the expanded configuration in the vessel.
    Type: Grant
    Filed: October 17, 2014
    Date of Patent: December 26, 2017
    Assignee: EMBA Medical Limited
    Inventors: Andrew H. Cragg, John Logan, Brett E. Naglreiter, Scott R. Arp, Alejandro Espinosa, Nicholas A. Green, Victor M. Gamez
  • Patent number: 9737426
    Abstract: Modular endograft devices and associated systems and methods are disclosed herein. In several embodiments, an endograft system can include constrained first and second endograft devices that extend across a vascular defect and expanded to press mating septal walls against each other. At least one of the endograft devices can include a fenestration that is aligned with a renal artery to provide bloodflow to the artery. A delivery device configured in accordance with the present technology can include a guidewire that passes through the fenestration to guide the endograft to an implant site and self align the fenestration with the renal artery to facilitate connection of the endograft to the renal artery. An additional stent can be connected to the fenestration to secure the renal artery to the endograft device.
    Type: Grant
    Filed: March 14, 2014
    Date of Patent: August 22, 2017
    Assignee: Altura Medical, Inc.
    Inventors: Andrew H. Cragg, John Logan
  • Patent number: 9681876
    Abstract: The present disclosure describes an occlusion device and methods of delivering the occlusion device. The occlusion device can include an expandable structure configured to move between an unexpanded configuration and an expanded configuration. The expandable structure can be configured to have an expansion ratio of at least about 5:1. Further, the occlusion device can be configured to prevent substantially all fluid from flowing past the occlusion device when the occlusion device is in the expanded configuration in the vessel.
    Type: Grant
    Filed: July 31, 2014
    Date of Patent: June 20, 2017
    Assignee: Emba Medical Limited
    Inventors: Andrew H. Cragg, John Logan, Brett E. Naglreiter, Scott R. Arp, Alejandro Espinosa, Nicholas A. Green, Victor M. Gamez
  • Publication number: 20170086854
    Abstract: A neurovascular occlusion device for occluding a vessel and a delivery system for delivering the occlusion device. The occlusion device can include a self-expandable support structure defining a concave occlusive component and an anchoring component separated by a neck component. The occlusive component can carry a functionally occlusive membrane configured to prevent substantially all fluid from flowing past the occlusion device when the occlusion device is expanded in the vessel.
    Type: Application
    Filed: September 22, 2016
    Publication date: March 30, 2017
    Inventors: Andrew H. Cragg, John Logan, Brett E. Naglreiter, Alejandro Espinosa