Patents by Inventor Joseph N. Macaluso, Jr.

Joseph N. Macaluso, Jr. 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: 5141502
    Abstract: A ureteral stent includes a stiffer stent body that affords superior columnar and axial strength for smooth advancement during insertion into a patient's ureter, and a softer bladder coil portion for reducing the risk of irritation at the trigone. A collar forms an interface between the stiffer stent body and the softer bladder coil. The collar has an annular shoulder that faces the bladder coil, providing a load transfer surface for controlled placement of the stent with a pusher tube that rides over the bladder coil. A pusher assembly includes a first inner and smaller diameter pusher having the diameter of the bladder coil, and a larger diameter pusher tube having the diameter of the collar anular shoulder. For easier placements, the smaller pusher tube bears against the bladder tube. For more difficult placements, the larger pusher tube can ride over the smaller pusher tube and engage the annular shoulder of the collar.
    Type: Grant
    Filed: August 28, 1991
    Date of Patent: August 25, 1992
    Inventor: Joseph N. Macaluso, Jr.