Patents by Inventor Zinovy Altman

Zinovy Altman 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).

  • Catheter needle having surface indication thereon and process for forming such catheter
    Patent number: 5484422
    Abstract: A catheter needle having surface indication thereon and process for forming such catheter by laser marking of the needle with a visual surface indicator of the terminus of the catheter tube.
    Type: Grant
    Filed: September 10, 1993
    Date of Patent: January 16, 1996
    Assignee: Critikon, Inc.
    Inventors: Thomas E. Sloane, Jr., Zinovy Altman
  • Laser beveling process for catheters
    Patent number: 5425903
    Abstract: A process and product and apparatus are disclosed wherein a laser is used to form a conical tapered tip on a catheter product. The catheter is placed on an insertion needle prior to the formation process, thus eliminating the problems associated with wearing out forming tooling. The process and product further call for the use of the laser to create a surface effect on the cannula to indicate the terminus of the catheter.
    Type: Grant
    Filed: September 10, 1993
    Date of Patent: June 20, 1995
    Assignee: Critikon, Inc.
    Inventors: Thomas E. Sloane, Jr., Zinovy Altman, Anthony Y. Van Heugten
  • Process for sealing catheter tip to insertion needle
    Patent number: 5397512
    Abstract: A process is provided wherein a laser is used to shape and/or trim a polymer tubular catheter material while in situ on a metal insertion needle or cannula. The laser process seals the interface between the polymer catheter material and the metal cannula to prevent the flow of blood between the tubular catheter and the introducing cannula during insertion into a patient. The interface is of sufficient strength to resist such blood flow, but still sufficiently weak to prevent the removal of the cannula needle after insertion into a patient.
    Type: Grant
    Filed: September 10, 1993
    Date of Patent: March 14, 1995
    Assignee: Critikon, Inc.
    Inventors: Thomas E. Sloane, Jr., Zinovy Altman