Patents by Inventor Clifford J. Dwyer

Clifford J. Dwyer 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: 20140277368
    Abstract: The present invention is directed to a prosthesis and method for treating, repairing, and/or replacing an abdominal aortic aneurysm. The prosthesis includes a coiled stent comprised of shape memory material having first and second anchoring zones and an intermediate zone. The prosthesis also includes graft material engaging at least a portion of the stent. During delivery of the prosthesis, the stent is in a substantially straight longitudinal configuration, and after delivery of the prosthesis the stent is returned to a coiled configuration. The diameter of the prosthesis may be adjusted by controlling the degree to which the stent is coiled.
    Type: Application
    Filed: March 12, 2013
    Publication date: September 18, 2014
    Applicant: CORDIS CORPORATION
    Inventors: Alfredo CASTANEDA, Donald Francis DePalma, Clifford J. Dwyer, Kirk L. Johnson
  • Patent number: 8551153
    Abstract: The present invention is directed to a prosthesis and method for treating, repairing, and/or replacing an abdominal aortic aneurysm. The prosthesis includes a coiled stent comprised of shape memory material having first and second anchoring zones and an intermediate zone. The prosthesis also includes graft material engaging at least a portion of the stent. During delivery of the prosthesis, the stent is in a substantially straight longitudinal configuration, and after delivery of the prosthesis the stent is returned to a coiled configuration. The diameter of the prosthesis may be adjusted by controlling the degree to which the stent is coiled.
    Type: Grant
    Filed: December 20, 2005
    Date of Patent: October 8, 2013
    Inventors: Alfredo Castaneda, Donald Francis DePalma, Clifford J. Dwyer, Kirk L. Johnson
  • Patent number: 8088156
    Abstract: A stent-graft fabricated from a thin-walled, high strength material provides for a more durable and lower profile endoprosthesis. The stent-graft comprises one or more stent segments covered with a fabric formed by the weaving, knitting or braiding of a biocompatible, high tensile strength, abrasion resistant, highly durable yarn such as ultra high molecular weight polyethylene. The one or more stent segments may be balloon expandable or self-expanding. The fabric may be attached to the stent segments utilizing any number of known materials and techniques. The fabric may be attached to the stent segments utilizing an attachment device that secures the fabric to a strut of the stent segment by sandwiching the fabric between itself and the stent strut.
    Type: Grant
    Filed: October 7, 2003
    Date of Patent: January 3, 2012
    Assignee: Cordis Corporation
    Inventors: Juan Borges, Clifford J. Dwyer, William L. Howat
  • Publication number: 20080051867
    Abstract: A delivery catheter for providing the percutaneous delivery of a plurality of vascular stents. One or more stops are provided in the delivery catheter between each of the plurality of stents. The stops be radiopaque to assist in deploying the stents at desired locations within the vasculature of a patient.
    Type: Application
    Filed: August 28, 2006
    Publication date: February 28, 2008
    Inventors: Luis A. Davila, Clifford J. Dwyer
  • Patent number: 7326237
    Abstract: A system, apparatus, and method for treating, repairing, an aneurysm, preferably an aortic aneurysm, and most preferably, an abdominal aortic aneurysm as described herein. The systems, devices, and methods described herein include a first prosthesis or stent gasket, and at least one second prosthesis for bypassing the aneurysm. The first prosthesis is configured and adapted to accommodate a section of artery upstream of the aneurysm, wherein the section is unsuitable for anchoring a typical first prosthesis.
    Type: Grant
    Filed: January 8, 2002
    Date of Patent: February 5, 2008
    Assignee: Cordis Corporation
    Inventors: Donald F. DePalma, Clifford J. Dwyer, Robert P. Letendre
  • Patent number: 7229472
    Abstract: The invention is a system, apparatus, and method for treating or repairing, an aneurysm in a large vessel, such as a thoracic aneurysm. The systems, devices, and methods of the present invention include a first prosthesis for anchoring a proximal end of the system in the blood vessel, a second prosthesis for anchoring a distal end of the system, and at least one third second prosthesis for bypassing the aneurysm, the first prosthesis optionally further comprising a seat or the like adapted and configured to receive the third prosthesis.
    Type: Grant
    Filed: January 8, 2002
    Date of Patent: June 12, 2007
    Assignee: Cordis Corporation
    Inventors: Donald F. DePalma, Clifford J. Dwyer, Robert P. Letendre, Kenneth S. Solovay
  • Patent number: 6984243
    Abstract: A stent-graft fabricated from a thin-walled, high strength material provides for a more durable and lower profile endoprosthesis. The stent-graft comprises one or more stent segments covered with a fabric formed by the weaving, knitting or braiding of a biocompatible, high tensile strength, abrasion resistant, highly durable yarn such as ultra high molecular weight polyethylene. The one or more stent segments may be balloon expandable or self-expanding. The fabric may be attached to the stent segments utilizing any number of known materials and techniques.
    Type: Grant
    Filed: July 30, 2002
    Date of Patent: January 10, 2006
    Assignee: Cordis Corporation
    Inventors: Clifford J. Dwyer, James R. Kershner, Tara L. Schaneville
  • Patent number: 6773446
    Abstract: A delivery apparatus for a self-expanding stent is disclosed. The apparatus has an outer sheath forming an elongated tubular member having distal and proximal ends and an inside and outside diameter. The apparatus also includes an inner shaft located coaxially within the outer sheath. The inner shaft has a distal end, a proximal end and longitudinal axis extending therebetween. At least a portion of the inner shaft is made from a flexible coiled member. The shaft preferably includes a stop attached thereto, the stop being proximal to the distal end of the sheath. Lastly, the apparatus includes a self-expanding stent located within the outer sheath, wherein the stent makes frictional contact with the outer sheath and the shaft is disposed coaxially within a lumen of the stent. During deployment of the stent, the stent makes contact with the stop.
    Type: Grant
    Filed: August 2, 2000
    Date of Patent: August 10, 2004
    Assignee: Cordis Corporation
    Inventors: Clifford J. Dwyer, Luis A. Davila, Frederick Feller, III, Mark L. Mathis, David J. Wilson
  • Patent number: 6743219
    Abstract: A delivery apparatus for self-expanding stents may be utilized to safely deliver stents to a target site. The apparatus has an outer sheath forming an elongated tubular member having distal and proximal ends and an inside and outside diameter. The apparatus also includes an inner shaft located coaxially within the outer sheath. The inner shaft has a distal end, a proximal end and a longitudinal axis extending therebetween. At least a portion of the inner shaft is made from a flexible coiled member. The shaft preferably includes a stop attached thereto, the stop being proximal to the distal end of the sheath. Lastly, the apparatus includes a self-expanding stent located within the outer sheath, wherein the stent makes frictional contact with the outer sheath and the shaft is disposed coaxially within a lumen of the stent. During deployment of the stent, the stent makes contact with the stop.
    Type: Grant
    Filed: August 2, 2000
    Date of Patent: June 1, 2004
    Assignee: Cordis Corporation
    Inventors: Clifford J. Dwyer, Luis A. Davila, Frederick Feller, III, Mark L. Mathis, David J. Wilson
  • Publication number: 20040024443
    Abstract: A stent-graft fabricated from a thin-walled, high strength material provides for a more durable and lower profile endoprosthesis. The stent-graft comprises one or more stent segments covered with a fabric formed by the weaving, knitting or braiding of a biocompatible, high tensile strength, abrasion resistant, highly durable yarn such as ultra high molecular weight polyethylene. The one or more stent segments may be balloon expandable or self-expanding. The fabric may be attached to the stent segments utilizing any number of known materials and techniques.
    Type: Application
    Filed: July 30, 2002
    Publication date: February 5, 2004
    Inventors: Clifford J. Dwyer, James R. Kershner, Tara L. Schaneville
  • Publication number: 20030130724
    Abstract: The present invention is a system, apparatus, and method for treating, repairing, an aneurysm, preferably an aortic aneurysm, and most preferably, an abdominal aortic aneurysm. The systems, devices, and methods of the present invention include a first prosthesis or stent gasket, and at least one second prosthesis for bypassing the aneurysm. The first prosthesis of the present invention is configured and adapted to accommodate a section of artery upstream of the aneurysm, wherein the section is unsuitable for anchoring a typical first prosthesis.
    Type: Application
    Filed: January 8, 2002
    Publication date: July 10, 2003
    Inventors: Donald F. DePalma, Clifford J. Dwyer, Robert P. Letendre
  • Publication number: 20030130720
    Abstract: The present invention is directed to a system, apparatus, and method for treating and/or repairing an aneurysm, preferably an aortic aneurysm, and most preferably, an abdominal aortic aneurysm. The systems, devices, and methods of the present invention include a first prosthesis or first prosthesis, and at least one second prosthesis for bypassing the aneurysm, and at least one third prosthesis for establishing a fluid flow channel from the abdominal aorta into another artery, such as a renal artery.
    Type: Application
    Filed: January 8, 2002
    Publication date: July 10, 2003
    Inventors: Donald F. DePalma, Clifford J. Dwyer, Robert P. Letendre
  • Patent number: 6395017
    Abstract: A delivery device for intraluminally positioning and controllably releasing a vascular prosthesis includes an elongate delivery sheath and a control handle at the proximal end of the device. The handle has components movable and arranged to define at least three relative positions including (1) an implant capture position in which the sheath fully encloses and contains the implant, (2) an intermediate position in which the implant is partially deployed but in which the trailing end of the implant remains attached to the delivery device, and (3) a release position in which the implant has been freed from the delivery device and fully released within the blood vessel. The movable parts of the handle include a shifting mechanism that must be operated deliberately through a detent by the physician to enable the handle to be manipulated from one position to the other.
    Type: Grant
    Filed: November 15, 1996
    Date of Patent: May 28, 2002
    Assignee: C. R. Bard, Inc.
    Inventors: Clifford J. Dwyer, Timothy Robinson
  • Publication number: 20020058985
    Abstract: The invention is a system, apparatus, and method for treating or repairing, an aneurysm in a large vessel, such as a thoracic aneurysm. The systems, devices, and methods of the present invention include a first prosthesis for anchoring a proximal end of the system in the blood vessel, a second prosthesis for anchoring a distal end of the system, and at least one third second prosthesis for bypassing the aneurysm, the first prosthesis optionally further comprising a seat or the like adapted and configured to receive the third prosthesis.
    Type: Application
    Filed: January 8, 2002
    Publication date: May 16, 2002
    Inventors: Donald F. DePalma, Clifford J. Dwyer, Robert P. Letendre, Kenneth S. Solovay
  • Publication number: 20020016597
    Abstract: A self-expanding stent delivery apparatus having a reinforced sheath for the safe, effective and accurate deployment of self-expanding stents. The sheath is formed from an inner polymeric layer, an outer polymeric layer and a reinforcement layer sandwiched therebetween. The reinforcement layer comprises flat metallic wire to provide the requisite radial and axial strength. In addition, flat wire reduces the profile of the device.
    Type: Application
    Filed: June 19, 2001
    Publication date: February 7, 2002
    Inventors: Clifford J. Dwyer, Frederick Feller, Kirk Johnson, David J. Wilson
  • Patent number: 5902334
    Abstract: An endoprosthesis assembly adapted to be positioned within a body lumen includes a resilient, self-expanding anchor attached to a tubular graft. The endoprosthesis can be recaptured in a delivery device to enable repositioning or removal of the endoprosthesis at any time prior to complete deployment of the endoprosthesis in the patient. The delivery device includes an outer tubular member that carries the endoprosthesis in a radially contracted configuration and an elongate inner tubular member that extends through the prosthesis and beyond the distal end of the outer tubular member. A retainer is carried by the inner member that engages and retains the proximal end of the endoprosthesis relative to the inner member until the endoprosthesis is released.
    Type: Grant
    Filed: April 11, 1997
    Date of Patent: May 11, 1999
    Assignee: C.R. Bard, Inc.
    Inventors: Clifford J. Dwyer, Timothy Robinson, Michael Weiser
  • Patent number: 5860998
    Abstract: An endoprosthetic implant is formed from a plurality of separate individual components that are inserted sequentially and transluminally into a bifurcated vascular region with each component being deployed in sequence by a sequence of catheter-like deployment devices. The separate components are placed relative to each other to define a bifurcated endoprosthesis. In one embodiment the deployment device includes a tubular sheath for maintaining the radially expandable tubular implant in a contracted configuration and a gripping device including a cup and a gripping member that cooperate to define an annular space by which the trailing end of the implant can be securely held by the deployment device during positioning of the device.
    Type: Grant
    Filed: November 25, 1996
    Date of Patent: January 19, 1999
    Assignee: C. R. Bard, Inc.
    Inventors: Timothy Robinson, Michael F. Weiser, Dennis Kujawski, Clifford J. Dwyer
  • Patent number: 5843167
    Abstract: An endoprosthesis assembly adapted to be securely positioned within a body lumen is provided with one or more hooks adapted to engage tissue that defines the body lumen. The endoprosthesis includes a resilient self-expanding anchor attached to the tubular graft. The anchor and hooks carried by the anchor are constructed to enable the endoprosthesis to be recaptured in a delivery device to enable repositioning or removal of the endoprosthesis and any time prior to complete deployment of the endoprosthesis in the patient.
    Type: Grant
    Filed: February 24, 1997
    Date of Patent: December 1, 1998
    Assignee: C. R. Bard, Inc.
    Inventors: Clifford J. Dwyer, Timothy Robinson, Michael Weiser
  • Patent number: 5709707
    Abstract: A self-centering umbrella-type septal closure device which includes a proximal and distal occluder each having a plurality of arms supporting the occlusion shells. Each of the proximal and distal support arms have at least three coils any one or more of which is secured by a centering mechanism so as to control the positioning of the closure device so that it is centered about a defect.
    Type: Grant
    Filed: November 19, 1996
    Date of Patent: January 20, 1998
    Assignee: Children's Medical Center Corporation
    Inventors: James E. Lock, Carol A. Ryan, Clifford J. Dwyer