Patents by Inventor David Allen West

David Allen West 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: 6273877
    Abstract: An epidural needle is provided with a curved distal end to facilitate placement of a catheter into the epidural space of a spine. The distal end is further characterized by a primary bevel aligned to the longitudinal axis of the epidural needle at an angle of approximately 10°. A secondary bevel also is provided at the extreme distal end of the needle. The secondary bevel is aligned to the longitudinal axis of the needle at an angle of between 60°-80°. The curve, the primary bevel and the secondary bevel all are symmetrical about common plane passing through the longitudinal axis of the needle. The secondary bevel aligned at an angle of 60°-80° to the longitudinal axis provides a sufficiently sharp point to penetrate easily into the epidural space, but provides sufficient blunting to avoid inadvertent damage to the dura matter.
    Type: Grant
    Filed: July 20, 2000
    Date of Patent: August 14, 2001
    Assignee: Becton, Dickinson and Company
    Inventors: David Allen West, Michael Joseph Honey, Daniel Lee Redowl