Patents by Inventor Michael E. Lachman

Michael E. Lachman 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: 4931039
    Abstract: An external introducer for a ventricular catheter that is part of a hydrocephalus shunt system. The introducer includes a stylet assembly that mates with a cannula assembly. The cannula assembly comprises a cannula having a bent tip and an opening on the sidewall of the cannula, and a cannula hub into which a catheter is clipped. The stylet assembly includes a flexible stylet attached to a stylet hub. When the stylet hub is locked to the cannula hub, the stylet protrudes slightly from the end of the cannula at an angle. The introducer holds the catheter approximately straight for insertion into the ventricle of the brain.
    Type: Grant
    Filed: October 21, 1988
    Date of Patent: June 5, 1990
    Assignee: Baxter International Inc.
    Inventors: Frederick L. Coe, Michael E. Lachman