Patents by Inventor Denise Ching

Denise Ching 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).

  • Stent crimping tool for producing a grooved crimp
    Patent number: 6510722
    Abstract: A crimping device for crimping a stent onto the inflation balloon of a stent delivery catheter. The device forms a crimp which creates regions of high frictional resistence between the stent and the inflation balloon. In one form, the crimp comprises a plurality of spaced grooves running the longitudinal length of the stent. In another form, the crimp is composed of a plurality of radial indentations spaced along the body of the stent. The device including an inner hub housing a plurality of radially spaced crimping jaws and an outer hub enclosing the jaws. The outer hub being rotatably connected to the inner hub and including means for forcing the jaws to move radially inwardly to crimp a stent.
    Type: Grant
    Filed: May 10, 2000
    Date of Patent: January 28, 2003
    Assignee: Advanced Cardiovascular Systems, Inc.
    Inventors: Denise Ching, Matthew J. Gillick
  • Stent crimping tool
    Patent number: 6481262
    Abstract: A stent crimping device for crimping a stent onto a balloon delivery-catheter of the kind typically used in percutaneous transluminal coronary angioplasty procedures. The device comprises a pair of plates bearing mutually opposed parallel ribs. The ribbed plates move in a direction such that a stepped circular crimp may be rolled onto a stent thereby firmly fixing the stent to a catheter balloon.
    Type: Grant
    Filed: June 20, 2001
    Date of Patent: November 19, 2002
    Assignee: Advanced Cardiovascular Systems, Inc.
    Inventors: Denise Ching, Richard S. Stack
  • Stent delivery catheter with bumpers for improved retention of balloon expandable stents
    Patent number: 6468299
    Abstract: An improved balloon catheter which includes bumpers located adjacent to the proximal and distal ends of the catheter balloon. The bumpers form a recessed pocket into which a stent crimped onto the catheter balloon is mounted. The recessed pocket formed by the bumpers securely retains the stent on the balloon and minimizes undesired contact between the stent and arterial walls and lesions during advancement of the stent within a patient's vasculature.
    Type: Grant
    Filed: June 7, 2001
    Date of Patent: October 22, 2002
    Assignee: Advanced Cardiovascular Systems, Inc.
    Inventors: Richard S. Stack, Denise Ching
  • Stent crimping tool
    Publication number: 20020124626
    Abstract: A stent crimping device for crimping a stent onto a balloon delivery catheter of the kind typically used in percutaneous transluminal coronary angioplasty procedures. The device comprises a pair of plates bearing mutually opposed parallel ribs. The ribbed plates move in a direction such that a stepped circular crimp may be rolled onto a stent thereby firmly fixing the stent to a catheter balloon.
    Type: Application
    Filed: June 20, 2001
    Publication date: September 12, 2002
    Inventors: Denise Ching, Richard S. Stack
  • Stent delivery catheter with bumpers for improved retention of balloon expandable stents
    Publication number: 20010044630
    Abstract: An improved balloon catheter which includes bumpers located adjacent to the proximal and distal ends of the catheter balloon. The bumpers form a recessed pocket into which a stent crimped onto the catheter balloon is mounted. The recessed pocket formed by the bumpers securely retains the stent on the balloon and minimizes undesired contact between the stent and arterial walls and lesions during advancement of the stent within a patient's vasculature.
    Type: Application
    Filed: June 7, 2001
    Publication date: November 22, 2001
    Inventors: Richard S. Stack, Denise Ching
  • Stent delivery catheter with bumpers for improved retention of balloon expandable stents
    Patent number: 6264683
    Abstract: An improved balloon catheter which includes bumpers located adjacent to the proximal and distal ends of the catheter balloon. The bumpers form a recessed pocket into which a stent crimped onto the catheter balloon is mounted. The recessed pocket formed by the bumpers securely retains the stent on the balloon and minimizes undesired contact between the stent and arterial walls and lesions during advancement of the stent within a patient's vasculature.
    Type: Grant
    Filed: March 17, 2000
    Date of Patent: July 24, 2001
    Assignee: Advanced Cardiovascular Systems, Inc.
    Inventors: Richard S. Stack, Denise Ching