Patents by Inventor David T. Pollock

David T. Pollock 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: 6942690
    Abstract: A new endoluminal prosthesis for use in sealing a vascular graft to corporeal lumen provides for a flattened bulbous tail at the end of each cell of the prosthesis. The flattened bulbous tails reduce the amount of wear between the prosthesis and the softer material of the vascular grafts or corporeal lumen walls. A method of manufacturing a stent from a flat sheet of material is also included.
    Type: Grant
    Filed: March 4, 2002
    Date of Patent: September 13, 2005
    Assignee: Endovascular Technologies, Inc.
    Inventors: David T. Pollock, Richard Newhauser, Octavian Iancea
  • Patent number: 6652580
    Abstract: A system for repairing body lumens including a modular graft and a method for deploying the graft within the body lumen. The modular graft includes a first component having first and second legs portions which mate with second and third graft components, respectively. The second leg portion has a bell bottom shape. The modular graft further includes expandable members which aid in implanting the modular graft as well as facilitates the mating of its components. In order to repair the body lumen, the first component is placed at the repair site and thereafter the first and second legs are advanced to the repair site and attached to the first component. A further aspect of the invention is a fixation device which is adapted to perform an attachment function. The graft and the fixation device are configured to be axially separated from one another so as to allow the graft to attach to the vascular wall proximal of the graft.
    Type: Grant
    Filed: May 5, 2000
    Date of Patent: November 25, 2003
    Assignee: Endovascular Technologies, Inc.
    Inventors: Timothy A. M. Chuter, David T. Pollock, Tamara L. Trayer
  • Publication number: 20030199973
    Abstract: The present invention embodies an endovascular grafting device having a main body component and limb components. The device is contemplated to be assembled in-situ for the purpose of treating vascular defects or conditions.
    Type: Application
    Filed: February 26, 2003
    Publication date: October 23, 2003
    Inventors: Timothy A.M. Chuter, Matthew J. Fitz, Robin W. Eckert, Juan I. Perez, Richard Newhauser, Octavian Iancea, David T. Pollock, Arnold M. Escano
  • Publication number: 20030176912
    Abstract: The present invention embodies an endovascular graft having various frame-to-main body component attachment mechanisms which provide a secure bond, reduced graft material wear, and reduced delivery profile.
    Type: Application
    Filed: March 4, 2002
    Publication date: September 18, 2003
    Inventors: Timothy A.M. Chuter, Matthew J. Fitz, Robin W. Eckert, Vivianne M. Holt, Tina Ton, Octavian Iancea, Juan I. Perez, Richard Newhauser, Shuji Uemura, David T. Pollock, Reid Hayashi, George Caffell
  • Publication number: 20030176911
    Abstract: The present invention embodies an endovascular graft having an attachment frame connection mechanism that allows placement of the main body component in vasculature in combination with limb components. Various limb component-to-main body component attachment mechanisms are provided which ensure a reliable bond while facilitating a smaller delivery profile.
    Type: Application
    Filed: March 4, 2002
    Publication date: September 18, 2003
    Inventors: Octavian Iancea, Timothy A.M. Chuter, Arnold M. Escano, Reid Hayashi, Robin W. Eckert, Matthew J. Fitz, Shahrokh R. Farahani, Juan I. Perez, Richard Newhauser, David T. Pollock, Aleta Tesar
  • Patent number: 6517573
    Abstract: An improved hook provides for the attaching of endoluminal prosthesis within corporeal lumens. The hook is integrally formed with framing structure and is preset into an outward bend, but is resiliently flexible so as to form a substantially straight profile when compressed. The hook is capable of impinging upon the corporeal lumen and thereby securing the prosthesis. The hook may be configured for intraluminal delivery and deployment. A novel method of manufacturing said hook is also provided.
    Type: Grant
    Filed: April 11, 2000
    Date of Patent: February 11, 2003
    Assignee: Endovascular Technologies, Inc.
    Inventors: David T. Pollock, Peter Johansson
  • Publication number: 20020049490
    Abstract: A new endoluminal prosthesis provides for a compressible and expansible single-piece thick walled cylindrical structure. The cylindrical structure is comprised of curved elongated beams which intermittently merge with adjacent curved elongated beams. Each beam has a radial thickness greater than the circumferential width. The configuration of the curved beams reduces stress concentrations in the expanded and compressed condition of the prosthesis. Features are provided for high expansion ratios allowing the prosthesis to collapse into a very small diameter and expand into a very large diameter.
    Type: Application
    Filed: April 17, 2001
    Publication date: April 25, 2002
    Inventors: David T. Pollock, Arnold M. Escano
  • Patent number: 6279368
    Abstract: An apparatus for heating and setting a stent having curved limb elements. The apparatus is a mandrel having a restraining mechanism such as pins placed on the outer surface of the mandrel or shallow grooves machined in the outer surface of the mandrel to hold and mold the stent. The mandrel helps alleviate stresses induced upon stent elements during the heating and setting process and produces a more exact stent according to the desired stent design.
    Type: Grant
    Filed: June 7, 2000
    Date of Patent: August 28, 2001
    Assignee: Endovascular Technologies, Inc.
    Inventors: Arnold M. Escano, David T. Pollock
  • Patent number: 5690638
    Abstract: Method and apparatus for determining the direction of the mechanical axis of the femur of a patient in relation to the corresponding knee of the patient in connection with resecting the distal femur for the reception of a femoral knee prothesis include at least partially suspending the patient's leg to locate the knee at a suspended position wherein external forces on the knee, such as the weight of the leg, are balanced and the knee remains essentially stationary at the suspended position, applying a force to the femur at a predetermined location relative to the mechanical axis of the femur, directing the applied force in a direction such that the knee remains undeflected from the suspended position while the force is applied to the femur in that direction, and employing that direction of the applied force to indicate the direction of the mechanical axis of the femur.
    Type: Grant
    Filed: December 27, 1996
    Date of Patent: November 25, 1997
    Assignee: Osteonics Corp.
    Inventors: Mark N. Dance, Mark Ward, David T. Pollock
  • Patent number: 5601566
    Abstract: Method and apparatus for determining the direction of the mechanical axis of the femur of a patient in relation to the corresponding knee of the patient in connection with resecting the distal femur for the reception of a femoral knee prothesis include at least partially suspending the patient's leg to locate the knee at a suspended position wherein external forces on the knee, such as the weight of the leg, are balanced and the knee remains essentially stationary at the suspended position, applying a force to the femur at a predetermined location relative to the mechanical axis of the femur, directing the applied force in a direction such that the knee remains undeflected from the suspended position while the force is applied to the femur in that direction, and employing that direction of the applied force to indicate the direction of the mechanical axis of the femur.
    Type: Grant
    Filed: February 22, 1994
    Date of Patent: February 11, 1997
    Assignee: Osteonics Corp.
    Inventors: Mark N. Dance, Mark Ward, David T. Pollock