Patents by Inventor James R. Pray

James R. Pray 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: 6193705
    Abstract: A catheter includes a manifold and a proximal shaft portion coupled to the manifold. A distal shaft portion is coupled to a distal end of the proximal shaft portion and is flexible relative to the proximal shaft portion. A fiber reinforcement layer is disposed about the distal shaft portion.
    Type: Grant
    Filed: September 3, 1999
    Date of Patent: February 27, 2001
    Assignee: SciMed Life Systems, Inc.
    Inventors: Todd J. Mortier, James R. Pray, Robert M. Vidlund, David A. Kusz, Cyril J. Schweich, Jr.
  • Patent number: 5961511
    Abstract: A catheter includes a manifold and a proximal shaft portion coupled to the manifold. A distal shaft portion is coupled to a distal end of the proximal shaft portion and is flexible relative to the proximal shaft portion. A fiber reinforcement layer is disposed about the distal shaft portion.
    Type: Grant
    Filed: October 28, 1998
    Date of Patent: October 5, 1999
    Assignee: SciMed Life Systems, Inc.
    Inventors: Todd J. Mortier, James R. Pray, Robert M. Vidlund, David A. Kusz, Cyril J. Schweich, Jr.
  • Patent number: 5947939
    Abstract: A catheter includes a manifold and a proximal shaft portion coupled to the manifold. A distal shaft portion is coupled to a distal end of the proximal shaft portion and is flexible relative to the proximal shaft portion. A fiber reinforcement layer is disposed about the distal shaft portion.
    Type: Grant
    Filed: March 14, 1997
    Date of Patent: September 7, 1999
    Assignee: SCIMED Life Systems, Inc.
    Inventors: Todd J. Mortier, James R. Pray, Robert M. Vidlund, David A. Kusz, Cyril J. Schweich, Jr.
  • Patent number: 5899892
    Abstract: A catheter includes a manifold and a proximal shaft portion coupled to the manifold. A distal shaft portion is coupled to a distal end of the proximal shaft portion and is flexible relative to the proximal shaft portion. A fiber reinforcement layer is disposed about the distal shaft portion.
    Type: Grant
    Filed: November 7, 1997
    Date of Patent: May 4, 1999
    Assignee: SciMed Life Systems, Inc.
    Inventors: Todd J. Mortier, James R. Pray, Robert M. Vidlund, David A. Kusz, Cyril J. Schweich, Jr.
  • Patent number: 5730733
    Abstract: A catheter is disclosed which includesa manifold;a proximal shaft coupled to the manifold;a distal shaft coupled to a distal end of the proximal shaft and being flexible relative to the proximal shaft;a fiber braid disposed about the distal shaft wherein the fiber braid includes a plurality of fibers disposed on the distal shaft and crossing over one another to form picks; anda lubricious coating on an inner surface of the proximal and distal shaft portions.
    Type: Grant
    Filed: May 31, 1996
    Date of Patent: March 24, 1998
    Assignee: SciMed Life Systems, Inc.
    Inventors: Todd J. Mortier, James R. Pray, Robert M. Vidlund, David A. Kusz, Cyril J. Schweich, Jr.
  • Patent number: 5533987
    Abstract: The present invention provides a catheter for insertion into the body and having proximal and distal ends, the distal end preceding and the proximal end trailing when said catheter is inserted into the body, said catheter comprising an inner tubular shaft and an outer tubular shaft having a proximal outer tube section and a distal outer tube section, the proximal outer tube section further having proximal and distal ends, the proximal outer tube section comprising a polymer encased tubular braid of stainless steel, the polymer encasement for the braid comprising at least one layer of polyimide, the braid having a weave which increases in pick count from the proximal end to the distal end of the proximal outer tube section.
    Type: Grant
    Filed: November 22, 1995
    Date of Patent: July 9, 1996
    Assignee: Scimed Lifesystems, Inc.
    Inventors: James R. Pray, Richard G. Cornelius, Michelle Arney
  • Patent number: 5507995
    Abstract: An intravascular catheter for providing access to distal vascular sites. The intravascular catheter comprises an elongate shaft with a lumen extending therethrough. The elongate shaft is comprised of a composite construction and has a proximal relatively stiff section, a distal section relatively more flexible than the proximal section, and an intermediate section between the proximal and the distal sections that provides a transition in flexibility between the proximal section and the distal section. The distal section has surface contours that impart flexibility to the distal section. A method for processing a tubular member with surface contours for use in a medical device, such as a catheter or guide wire, is also provided.
    Type: Grant
    Filed: July 12, 1994
    Date of Patent: April 16, 1996
    Assignee: Scimed Life Systems, Inc.
    Inventors: Cyril J. Schweich, Jr., James R. Pray, Brian J. Brown
  • Patent number: 5358493
    Abstract: An intravascular catheter for providing access to distal vascular sites. The intravascular catheter comprises an elongate shaft with a lumen extending therethrough. The elongate shaft is comprised of a composite construction and has a proximal relatively stiff section, a distal section relatively more flexible than the proximal section, and an intermediate section between the proximal and the distal sections that provides a transition in flexibility between the proximal section and the distal section. The distal section has surface contours that impart flexibility to the distal section. A method for processing a tubular member with surface contours for use in a medical device, such as a catheter or guide wire, is also provided.
    Type: Grant
    Filed: February 18, 1993
    Date of Patent: October 25, 1994
    Assignee: Scimed Life Systems, Inc.
    Inventors: Cyril J. Schweich, Jr., James R. Pray, Brian J. Brown
  • Patent number: 5338295
    Abstract: A dilatation balloon catheter includes a shaft having a proximal outer tube section and a distal outer tube section. The proximal outer tube section is formed from a tubular braid of a stainless steel member, which is encased in polyimide material. The distal outer tube section is a tube made of a polymer material, such as a high density polyethylene.
    Type: Grant
    Filed: April 9, 1992
    Date of Patent: August 16, 1994
    Assignee: SciMed Life Systems, Inc.
    Inventors: Richard G. Cornelius, Michelle Arney, James R. Pray