Patents by Inventor Barry M. Calvarese

Barry M. Calvarese 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: 5836951
    Abstract: Disclosed is an apparatus and method for the treatment of the symptoms of obstructive prostatism. The apparatus comprises an expandable dilation catheter and preferably an axially elongate sheath, adapted for transurethral insertion via the external opening of the urethra. The sheath is ellipsoid in cross-section, and provides an initial path through which the catheter and a standard cystoscope lens is guided. The dilation catheter or the sheath are provided with a non-radiological locating means for positioning the dilation portion of the catheter with respect to an anatomical landmark. Once the catheter has been properly positioned with respect to both the bladder neck and the sphincter, the dilation balloon may be inflated to force open the affected prostatic urethra and eliminate the obstruction.
    Type: Grant
    Filed: June 7, 1995
    Date of Patent: November 17, 1998
    Assignee: Boston Scientific Corporation
    Inventors: Robert F. Rosenbluth, Jay Alan Lenker, George Robert Greene, Barry M. Calvarese
  • Patent number: 5752971
    Abstract: Disclosed is an apparatus and method for the treatment of the symptoms of obstructive prostatism. The apparatus includes an expandable dilation catheter and preferably an axially elongate sheath, adapted for transurethral insertion via the external opening of the urethra. The sheath is ellipsoid in cross-section, and provides an initial path through which the catheter and a standard cystoscope lens is guided. The dilation catheter or the sheath are provided with a non-radiological locating feature for positioning the dilation portion of the catheter with respect to an anatomical landmark. Once the catheter has been properly positioned with respect to both the bladder neck and the sphincter, the dilation balloon may be inflated to force open the affected prostatic urethra and eliminate the obstruction.
    Type: Grant
    Filed: June 5, 1995
    Date of Patent: May 19, 1998
    Assignee: Boston Scientific Technology, Inc.
    Inventors: Robert F. Rosenbluth, Jay Alan Lenker, George Robert Greene, Barry M. Calvarese
  • Patent number: 5527336
    Abstract: Disclosed is an apparatus and method for the treatment of the symptoms of obstructive prostatism. The apparatus comprises an expandable dilation catheter and preferably an axially elongate sheath, adapted for transurethral insertion via the external opening of the urethra. The sheath is ellipsoid in cross-section, and provides an initial path through which the catheter and a standard cystoscope lens is guided. The dilation catheter or the sheath are provided with a non-radiological locating means for positioning the dilation portion of the catheter with respect to an anatomical landmark. Once the catheter has been properly positioned with respect to both the bladder neck and the sphincter, the dilation balloon may be inflated to force open the affected prostatic urethra and eliminate the obstruction.
    Type: Grant
    Filed: March 2, 1995
    Date of Patent: June 18, 1996
    Assignee: Boston Scientific Corporation
    Inventors: Robert F. Rosenbluth, Jay A. Lenker, George R. Greene, Barry M. Calvarese
  • Patent number: 5312430
    Abstract: Disclosed is an apparatus and method for the treatment of the symptoms of obstructive prostatism. The apparatus comprises an expandable dilation catheter and preferably an axially elongate sheath, adapted for transurethral insertion via the external opening of the urethra. The sheath is ellipsoid in cross-section, and provides an initial path through which the catheter and a standard cystoscope lens is guided. The dilation catheter or the sheath are provided with a non-radiological locating means for positioning the dilation portion of the catheter with respect to an anatomical landmark. Once the catheter has been properly positioned with respect to both the bladder neck and the sphincter, the dilation balloon may be inflated to force open the affected prostatic urethra and eliminate the obstruction.
    Type: Grant
    Filed: June 28, 1991
    Date of Patent: May 17, 1994
    Inventors: Robert F. Rosenbluth, Jay A. Lenker, George R. Greene, Barry M. Calvarese
  • Patent number: 5030227
    Abstract: Disclosed is an apparatus and method for the treatment of the symptoms of obstructive prostatism. The apparatus comprises an expandable dilation catheter and preferably an axially elongate sheath, adapted for transurethral insertion via the external opening of the urethra. The sheath is ellipsoid in cross-section, and provides an initial path through which the catheter and a standard cystoscope lens is guided. The dilation catheter or the sheath are provided with a non-radiological locating means for positioning the dilation portion of the catheter with respect to an anatomical landmark. Once the catheter has been properly positioned with respect to both the bladder neck and the sphincter, the dilation balloon may be inflated to force open the affected prostatic urethra and eliminate the obstruction.
    Type: Grant
    Filed: June 1, 1989
    Date of Patent: July 9, 1991
    Assignee: Advanced Surgical Intervention, Inc.
    Inventors: Robert F. Rosenbluth, Jay A. Lenker, George R. Greene, Barry M. Calvarese
  • Patent number: 5002558
    Abstract: A urethral catheter having an adjustable dilating balloon length for dilating a prostatic urethra and a method for using same. The device includes a catheter to which a Foley balloon is affixed at the distal end, and to which a dilating balloon is annularly affixed, and includes means to independently expand and contract the balloons. Concentrically encompassing the catheter is a sheath or ring, which in one embodiment slides along the outside of the catheter. With the method of the present invention, the affected prostatic urethra is measured using a cystoscope and a calibrated catheter or other known measurement means. The sheath of an adjustable catheter of one embodiment of the present invention is set to the measured length by covering a portion of the dilating balloon with the sheath. The dilating catheter is inserted through the urethra until the balloon at the distal end is located within the bladder, at which point it is inflated and the dilating catheter is anchored in position.
    Type: Grant
    Filed: August 23, 1989
    Date of Patent: March 26, 1991
    Assignees: The Beth Israel Hospital Association, Advanced Surgical Intervention, Inc.
    Inventors: Lester A. Klein, Robert F. Rosenbluth, Jay A. Lenker, Barry M. Calvarese