Patents by Inventor Donald B. Longmore

Donald B. Longmore 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).

  • Surgical catheters with suturing device and NMR opaque material
    Patent number: 4827931
    Abstract: A surgical catheter for use on a patient undergoing NMR examination is composed of an elongated element made up of axial segments which are composed of materials which alternate from being highly opaque under NMR examination and less opaque under NMR examination, thereby enabling identification of the entire length of the catheter in the NMR field.
    Type: Grant
    Filed: September 23, 1987
    Date of Patent: May 9, 1989
    Inventor: Donald B. Longmore
  • Fluid flow monitoring
    Patent number: 4816763
    Abstract: The flow pattern of a gas or a liquid around a shaped object which is non-magnetic and is either NMR opaque or NMR translucent is observed by placing the shaped object in a duct in the working volume of an NMR imaging system and streaming a gas or a liquid which is NMR opaque or NMR translucent through the duct so that it deflects around the shaped object to create a flow pattern, and effecting NMR image reconstruction of the flow pattern for observation thereof.
    Type: Grant
    Filed: September 23, 1987
    Date of Patent: March 28, 1989
    Inventor: Donald B. Longmore