Patents by Inventor Wassim R. Aliahmad

Wassim R. Aliahmad 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: 7534317
    Abstract: A method of manufacturing a kink resistant sheath includes the steps of coating a wire with a plastic material to form an inner tube, placing a braid over the inner tube, applying a spring reinforcement over the braid and applying a second layer of plastic material over the assembly to form an outer tube of a braided reinforced sheath. The plastic material is preferably polyurethane but may be a thermoplastic, thermoset or any plastic material having hard and/or soft durometer.
    Type: Grant
    Filed: December 28, 2005
    Date of Patent: May 19, 2009
    Assignee: Applied Medical Resources Corporation
    Inventors: John R. Brustad, Payam Adlparvar, Wassim R. Aliahmad, Canh T. Tran, Nabil Hilal, Boun Pravong, Raffi S. Pinedjian, Charles C. Hart
  • Patent number: 7005026
    Abstract: A releasable mechanism such as a cap is adapted for use with an access sheath having an elongate tube and a handle structure disposed at a proximal end of the tube. The releasable mechanism is sized and configured to fit the handle structure, which is shaped like the bell of a horn, to further facilitate use with surgical instrumentation. The releasable mechanism may operate as a separate cap that snaps onto the handle structure to provide access pathways to the sheath. The releasable mechanism may also be disposed at a proximal end of a surgical instrument to be introduced into the access sheath such that it may be interlocked with the sheath. In a method of manufacturing a kink-resistant sheath, a wire is initially coated with a plastic material, the coated wire is then wrapped around a mandrel forming a plurality of windings, and the wound coated wire is heated until the plastic material melts and bonds the windings to form a wire-reinforced sheath.
    Type: Grant
    Filed: November 15, 2002
    Date of Patent: February 28, 2006
    Assignee: Applied Medical Resources Corporation
    Inventors: John R Brustad, Payam Adlparvar, Wassim R. Aliahmad, Canh T. Tran, Nabil Hilal, Boun Pravong, Raffi S. Pinedjian, Charles C Hart
  • Publication number: 20040097881
    Abstract: A releasable mechanism such as a cap is adapted for use with an access sheath having an elongate tube and a handle structure disposed at a proximal end of the tube. The releasable mechanism is sized and configured to fit the handle structure, which is shaped like the bell of a horn, to further facilitate use with surgical instrumentation. The releasable mechanism may operate as a separate cap that snaps onto the handle structure to provide access pathways to the sheath. The releasable mechanism may also be disposed at a proximal end of a surgical instrument to be introduced into the access sheath such that it may be interlocked with the sheath. In a method of manufacturing a kink-resistant sheath, a wire is initially coated with a plastic material, the coated wire is then wrapped around a mandrel forming a plurality of windings, and the wound coated wire is heated until the plastic material melts and bonds the windings to form a wire-reinforced sheath.
    Type: Application
    Filed: November 15, 2002
    Publication date: May 20, 2004
    Applicant: Applied Medical Resources Corporation
    Inventors: John R. Brustad, Payam Adlparvar, Wassim R. Aliahmad, Canh T. Tran, Nabil Hilal, Boun Pravong, Raffi S. Pinedjian, Charles C. Hart
  • Patent number: 5254091
    Abstract: A non-distensible balloon is adapted to be disposed circumferentially on a tube having an elongate axis and to be compressed against the tube to achieve a low profile. The balloon includes an end wall, a central wall, and a transition wall defined by a height transition region having a first axial length and defined by a thickness transition region having a second axial length less than the first axial length. An associated method includes the step of reducing the average volume of material per unit axial length in the transition wall of the balloon relative to the average volume of material per unit axial length in either the end wall or central wall of the balloon.
    Type: Grant
    Filed: January 8, 1991
    Date of Patent: October 19, 1993
    Assignee: Applied Medical Resources Corporation
    Inventors: Wassim R. Aliahmad, Said S. Hilal, Nabil Hilal