Patents by Inventor Clifton A. Alferness

Clifton A. Alferness 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: 20190365400
    Abstract: A two-stage method is disclosed for treating calcified lesions within a wall of a blood vessel. The first step includes breaking apart a calcified lesion using a plurality of shockwaves generated in an angioplasty balloon of an angioplasty catheter device. The angioplasty balloon is dilated via a fluid to a first extent to fit against at least a portion of the wall of the blood vessel. A plurality of electrical pulses are delivered to a pair of electrodes disposed within the fluid inside the balloon. The electrical pulses have an amplitude sufficient to create plasma arcs in the fluid to generate shockwaves that are conducted through the fluid and through the balloon to the blood vessel, to crack the calcified lesion. After breaking apart the calcified lesion, the angioplasty balloon is allowed to further expand to a second extent greater than the first extent, thereby reshaping an opening in the blood vessel.
    Type: Application
    Filed: August 19, 2019
    Publication date: December 5, 2019
    Applicant: Shockwave Medical, Inc.
    Inventors: John M. ADAMS, Daniel HAWKINS, Clifton A. ALFERNESS
  • Publication number: 20190343529
    Abstract: Disclosed embodiments include apparatuses, systems, and methods for facilitating anastomosis between bodily passages. In an illustrative embodiment, an eversion mechanism is configured to engage a first external surface of a receiving passage adjacent a first opening in the receiving passage in order to create a receiving flange presenting a first interior face. A donor support mechanism is configured to support a donor passage with an opening in an end in an everted position that forms a donor flange presenting a second interior face. The donor support mechanism is further configured to present the second interior face of the donor flange against the first interior face of the receiving flange to present a passage juncture. A suturing mechanism is configured to motivate a filament through a helical path around the passage juncture to suture the second interior face of the donor passage to the first interior face of the receiving passage.
    Type: Application
    Filed: March 27, 2019
    Publication date: November 14, 2019
    Applicant: Spiration, Inc., d/b/a Olympus Respiratory America
    Inventors: Adam Lee Smith, Clifton A. Alferness, Gina M. Muia-Longman, Clinton L. Finger
  • Publication number: 20190343527
    Abstract: Disclosed embodiments include apparatuses, systems, and methods for facilitating surgical anastomosis between bodily passages. In an illustrative embodiment, an eversion mechanism is configured to partially evert a distal portion of an opening of a receiving passage and further configured to leave a proximal portion of the opening of the receiving passage in a non-everted position. A donor support mechanism is configured to partially evert a distal portion of an opening at an end of a donor passage and further configured to leave a first proximal portion of the end of the donor passage in a non-everted position. The donor support mechanism is further configured to form a passage juncture at the end of the donor passage and the opening of the receiving passage. A suturing mechanism is configured to motivate a filament through a generally helical path around the passage juncture to suture the donor passage to the receiving passage.
    Type: Application
    Filed: March 27, 2019
    Publication date: November 14, 2019
    Applicant: Spiration, Inc., d/b/a Olympus Respiratory America
    Inventors: Adam Lee Smith, Clifton A. Alferness, Gina M. Muia-Longman, Clinton L. Finger, David R. Seward
  • Publication number: 20190021720
    Abstract: Tissue fasteners carried on a tissue piercing deployment wire fasten tissue layers of a mammalian body together. The fasteners include a first member, a second member, and a connecting member extending between the first and second members. The first and second members are substantially parallel to each other. The fasteners may be deployed in limited spaces and in various applications including the restoration of a gastroesophageal flap valve.
    Type: Application
    Filed: August 28, 2018
    Publication date: January 24, 2019
    Applicant: EndoGastric Solutions, Inc.
    Inventors: Steve G. Baker, Brett J. Carter, Stefan J.M. Kraemer, Clifton A. Alferness, John M. Adams
  • Publication number: 20180317946
    Abstract: A system for breaking obstructions in body lumens includes a catheter including an elongated carrier, a balloon about the carrier in sealed relation thereto, the balloon being arranged to receive a fluid therein that inflates the balloon, and an arc generator including at least one electrode within the balloon that forms a mechanical shock wave within the balloon. The system further includes a power source that provides electrical energy to the arc generator.
    Type: Application
    Filed: July 5, 2018
    Publication date: November 8, 2018
    Applicant: SHOCKWAVE MEDICAL, INC.
    Inventors: John M. ADAMS, Daniel HAWKINS, Clifton A. ALFERNESS
  • Patent number: 10064615
    Abstract: Tissue fasteners carried on a tissue piercing deployment wire fasten tissue layers of a mammalian body together. The fasteners include a first member, a second member, and a connecting member extending between the first and second members. The first and second members are substantially parallel to each other. The fasteners may be deployed in limited spaces and in various applications including the restoration of a gastroesophageal flap valve.
    Type: Grant
    Filed: September 5, 2012
    Date of Patent: September 4, 2018
    Assignee: ENDOGASTRIC SOLUTIONS, INC.
    Inventors: Steve G. Baker, Brett J. Carter, Stefan J. M. Kraemer, Clifton A. Alferness, John M. Adams
  • Patent number: 10039561
    Abstract: A system for breaking obstructions in body lumens includes a catheter including an elongated carrier, a balloon about the carrier in sealed relation thereto, the balloon being arranged to receive a fluid therein that inflates the balloon, and an arc generator including at least one electrode within the balloon that forms a mechanical shock wave within the balloon. The system further includes a power source that provides electrical energy to the arc generator.
    Type: Grant
    Filed: March 17, 2015
    Date of Patent: August 7, 2018
    Assignee: SHOCKWAVE MEDICAL, INC.
    Inventors: John M. Adams, Daniel Hawkins, Clifton A. Alferness
  • Publication number: 20170014132
    Abstract: A gastric reduction pouch of a stomach is formed by gathering stomach tissue circumferentially from within the stomach to form a reduced diameter stomach section. A plurality of fasteners are deployed within the gathered stomach tissue to maintain the reduced diameter stomach portion. The gathering step may include folding the stomach tissue to produce a plurality of stomach tissue folds. A device is disclosed that is particularly adapted to permit such gastric reduction of a previously formed gastric reduction pouch.
    Type: Application
    Filed: December 24, 2012
    Publication date: January 19, 2017
    Inventors: Steve G. BAKER, Raymond Michael Wolniewicz, III, Sean Totten, Clifton A. Alferness, Scott Harshman
  • Patent number: 9358013
    Abstract: An intra-bronchial device placed and anchored in an air passageway of a patient to collapse a lung portion associated with the air passageway. The device includes a support structure, an obstructing member carried by the support structure that reduces ventilation to the lung portion by preventing air from being inhaled into the lung portion, and at least one anchor carried by the support structure that anchors the obstruction device within the air passageway. The anchor may engage the air passageway wall by piercing or friction, include a stop dimensioned for limiting the piercing of the air passageway wall, and may be releasable from the air passageway for removal of the intra-bronchial device. The anchors may be carried by a peripheral portion of the support structure, or by a central portion of the support structure. The obstructing member may be a one-way valve.
    Type: Grant
    Filed: February 13, 2015
    Date of Patent: June 7, 2016
    Assignee: Spiration, Inc
    Inventors: David H. Dillard, Hugo X. Gonzalez, Seung Yi, Lauri J. DeVore, Mia Park, Dean T. Corcoran, Jenni Rimbaugh, Clifton A. Alferness
  • Publication number: 20160030049
    Abstract: An air passageway obstruction device includes a frame structure and a flexible membrane overlying the frame structure. The frame structure is collapsible upon advancement of the device into the air passageway, expandable into a rigid structure upon deploying in the air passageway and recollapsible upon removal from the air passageway. The flexible membrane obstructs inhaled air flow into a lung portion communicating with the air passageway. The device may be removed after deployment in an air passageway by recollapsing the device and pulling the device proximally through a catheter.
    Type: Application
    Filed: March 6, 2015
    Publication date: February 4, 2016
    Inventors: Clifton A. Alferness, Hugo X. Gonzalez, David H. Dillard
  • Publication number: 20160008002
    Abstract: An intra-bronchial device placed and anchored in an air passageway of a patient to collapse a lung portion associated with the air passageway. The device includes a support structure, an obstructing member carried by the support structure that reduces ventilation to the lung portion by preventing air from being inhaled into the lung portion, and at least one anchor carried by the support structure that anchors the obstruction device within the air passageway. The anchor may engage the air passageway wall by piercing or friction, include a stop dimensioned for limiting the piercing of the air passageway wall, and may be releasable from the air passageway for removal of the intra-bronchial device. The anchors may be carried by a peripheral portion of the support structure, or by a central portion of the support structure. The obstructing member may be a one-way valve.
    Type: Application
    Filed: February 13, 2015
    Publication date: January 14, 2016
    Inventors: David H. Dillard, Hugo X. Gonzalez, Seung Yi, Lauri J. DeVore, Mia Park, Dean T. Corcoran, Jenni Rimbaugh, Clifton A. Alferness
  • Publication number: 20150305749
    Abstract: An intra-bronchial device may be placed and anchored in an air passageway of a patient to collapse a lung portion associated with the air passageway. The device includes an obstructing member that prevents air from being inhaled into the lung portion, and an anchor that anchors the obstruction device within the air passageway. The anchor may piercingly engage the air passageway wall. The anchor may be releasable from the air passageway for removal of the obstructing member. The anchor may be releasable by collapsing a portion of the obstructing member, or by drawing the obstructing member toward the larynx. The obstructing member may be a one-way valve.
    Type: Application
    Filed: December 23, 2014
    Publication date: October 29, 2015
    Inventor: Clifton A. Alferness
  • Publication number: 20150238208
    Abstract: A system for breaking obstructions in body lumens includes a catheter including an elongated carrier, a balloon about the carrier in sealed relation thereto, the balloon being arranged to receive a fluid therein that inflates the balloon, and an arc generator including at least one electrode within the balloon that forms a mechanical shock wave within the balloon. The system further includes a power source that provides electrical energy to the arc generator.
    Type: Application
    Filed: March 17, 2015
    Publication date: August 27, 2015
    Inventors: John M. ADAMS, Daniel HAWKINS, Clifton A. ALFERNESS
  • Patent number: 9072534
    Abstract: An angioplasty catheter includes an elongated carrier, and an angioplasty balloon about the carrier in sealed relation thereto. The balloon is arranged to receive a fluid therein that inflates the balloon. The catheter further includes a shock wave generator within the balloon that forms a rapidly expanding and collapsing bubble within the balloon to form mechanical shock waves within the balloon. The expanding bubble forms a first shock and the collapsing balloon forms a second shock wave. The shock wave generator is arranged such that the energy of the first shock wave is greater than the energy of the second shock wave.
    Type: Grant
    Filed: May 7, 2012
    Date of Patent: July 7, 2015
    Assignee: SHOCKWAVE MEDICAL, INC.
    Inventors: John M. Adams, Clifton A. Alferness, Daniel Hawkins
  • Publication number: 20150182684
    Abstract: In a method for substantially isolating cardiac circulation from systemic circulation, flow between the coronary sinus and the right atrium is occluded. A venous collection device having a collection lumen and a support structure is located in the coronary sinus. The support structure is used to maintain patency of the coronary sinus during collection of fluid through the collection lumen. An artificial flow path is provided between the collection lumen and the one or more coronary arteries, thus isolating the cardiac circulation. According to the method, cardiac pumping for systemic circulation can be maintained during isolation of the cardiac circulation.
    Type: Application
    Filed: November 12, 2014
    Publication date: July 2, 2015
    Applicant: OSPREY MEDICAL, INC.
    Inventors: David Martin Kaye, Clifton A. Alferness, John Melmouth Power, Adam Lucas Bilney
  • Patent number: 8974484
    Abstract: An air passageway obstruction device includes a frame structure and a flexible membrane overlying the frame structure. The frame structure is collapsible upon advancement of the device into the air passageway, expandable into a rigid structure upon deploying in the air passageway and recollapsible upon removal from the air passageway. The flexible membrane obstructs inhaled air flow into a lung portion communicating with the air passageway. The device may be removed after deployment in an air passageway by recollapsing the device and pulling the device proximally through a catheter.
    Type: Grant
    Filed: March 6, 2013
    Date of Patent: March 10, 2015
    Assignee: Spiration, Inc.
    Inventors: Clifton A. Alferness, Hugo X. Gonzalez, David H. Dillard
  • Patent number: 8961540
    Abstract: A tissue fastener assembly delivers a fastener for deployment. The assembly includes a fastener including a first member, a second member, the first and second members having first and second ends, and a flexible connecting member fixed to each of the first and second members intermediate the first and second ends and extending between the first and second members. The first member has a longitudinal axis and a through channel along the axis. The assembly further includes a deployment wire slidingly received within the through channel of the first member that pierces into the tissue and guides the first member through the tissue, a guide structure defining a lumen that receives the fastener and deployment wire and guides the deployment wire and fastener to the tissue, and a fastener configuration structure that orientates the second member in a predetermined position relative to the first member within the lumen for dependable deployment.
    Type: Grant
    Filed: November 15, 2012
    Date of Patent: February 24, 2015
    Assignee: EndoGastric Solutions, Inc.
    Inventors: Steve G. Baker, Brett J. Carter, Stefan J. M. Kraemer, Clifton A. Alferness, John M. Adams, Raymond M. Wolniewicz, III
  • Patent number: 8956371
    Abstract: A system for breaking obstructions in body lumens includes a catheter including an elongated carrier, a balloon about the carrier in sealed relation thereto, the balloon being arranged to receive a fluid therein that inflates the balloon, and an arc generator including at least one electrode within the balloon that forms a mechanical shock wave within the balloon. The system further includes a power source that provides electrical energy to the arc generator.
    Type: Grant
    Filed: June 11, 2009
    Date of Patent: February 17, 2015
    Assignee: Shockwave Medical, Inc.
    Inventors: Daniel Hawkins, Clifton A. Alferness, John M. Adams
  • Patent number: 8956374
    Abstract: A system for breaking obstructions in body lumens includes a catheter including an elongated carrier, a balloon about the carrier in sealed relation thereto, the balloon being arranged to receive a fluid therein that inflates the balloon, and an arc generator including at least one electrode within the balloon that forms a mechanical shock wave within the balloon. The system further includes a power source that provides electrical energy to the arc generator.
    Type: Grant
    Filed: March 16, 2011
    Date of Patent: February 17, 2015
    Assignee: Shockwave Medical, Inc.
    Inventors: Daniel Hawkins, Clifton A. Alferness, John M. Adams
  • Patent number: RE45921
    Abstract: A resection device and method permits safe and efficient encapsulation, isolation and resection of body tissue. The device includes a sheath of flexible and severable material configured to receive the body tissue to be resectioned as it is drawn therein. The sheath may be expandable and held in an expanded condition as the body tissue to be resectioned is drawn into the sheath. Thereafter, the sheath is permitted to collapse about the body tissue to contain and constrict the body tissue. Once the body tissue to be resectioned is disposed in the sheath, the sheath is severed to resection the body tissue.
    Type: Grant
    Filed: November 9, 2011
    Date of Patent: March 15, 2016
    Assignee: Spiration, Inc.
    Inventors: Clifton A. Alferness, Hugo X. Gonzalez