Patents by Inventor Massoud Ahmadzadeh

Massoud Ahmadzadeh 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: 5997485
    Abstract: A device (10) holds a hollow puncturing needle (11) which can be controllably moved in a first direction (16) within an aparture (21) in the device (10). The handle (14) can, when pushed, be moved in the direction of the arrow (15). If the handle (14) is moved in the direction of the arrow (15), the hollow puncturing needle (11) moves in the first direction (16). The device (10) is to be placed against a counter-surface via a support surface (20). The hollow puncturing needle (11) is held in the device (10) to be axially movable controllably in the first direction (16) via the movable handle (14).
    Type: Grant
    Filed: October 9, 1996
    Date of Patent: December 7, 1999
    Inventor: Massoud Ahmadzadeh
  • Patent number: 5380270
    Abstract: An ureteral catheter has an elongated shaft and a lumen for drainage, the shaft has a first end with a pigtail and several openings therein, whereby the openings communicate with the lumen and the shaft has a second end with an open tip in the valve mechanism, wherein the open tip on the second end has an extendable folded shaft section and the shaft further comprises a retainer system within the valve mechanism and wherein the retainer system comprises a section, integral with the shaft, which is split into two half shafts, the half shafts being spaced apart from one another, in an unloaded mode, in a direction transverse to the lumen.
    Type: Grant
    Filed: December 9, 1991
    Date of Patent: January 10, 1995
    Assignee: Willy Rusch AG
    Inventor: Massoud Ahmadzadeh