Patents by Inventor David B. Morris

David B. Morris 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).

  • Publication number: 20080312681
    Abstract: The general purpose of the present invention is to provide a catheter for removal of an organized embolic thrombus, preferably in conjunction with a distal occlusion balloon guidewire. The present invention consists of three main components including a capture/delivery sheath, a capture sleeve of mesh attached to a tube and a grasping mechanism attached to another tube which is central to the other components. Operative structures in the form of manifolds are connected to such components in order to manipulate and control the relative positions of the capture/delivery sheath, the capture sleeve and the grasping mechanism. An embolic thrombus is engaged by the deployable automatically expanding serrated fingers of a grasping mechanism in combination with a deployable automatically expanding mesh capture sleeve. The capture/delivery sheath is maneuvered to cause compression of the serrated fingers and of the mesh capture sleeve for subsequent removal of the embolic thrombus.
    Type: Application
    Filed: May 14, 2008
    Publication date: December 18, 2008
    Inventors: Gary M. Ansel, Michael J. Bonnette, Eric J. Thor, David B. Morris, Stephen D. Weisel
  • Publication number: 20080312672
    Abstract: The present invention provides a forwardly directed fluid jet crossing catheter having a distally directed cylindrical flow fluid jet stream to cross a chronic total occlusion. The distal end of the device includes a formable catheter tip region having flexible internal components. Low and high pressure cavities are formed substantially by joined proximal and distal catheter tubes having an adhesive plug seal in common therebetween which partially defines one end of each of the low pressure and high pressure cavities. A guidewire tube and a high pressure tube are aligned along and within the low pressure and high pressure cavities and through the adhesive plug seal. The high pressure tube openly terminates in the high pressure cavity, whereby pressurized fluid transfers from the high pressure cavity in the guidewire tube entry hole to subsequently pass along the guidewire lumen and co-located guidewire to exit as a cylindrical fluid jet stream.
    Type: Application
    Filed: January 22, 2008
    Publication date: December 18, 2008
    Inventors: Michael J. Bonnette, David B. Morris, Eric J. Thor
  • Publication number: 20080289181
    Abstract: The present invention pertains to a miniature flexible thrombectomy catheter having one or more flexible miniature noncollapsing tubular portions including pushable and torqueable structure for introduction into the smaller vessels in neurovascular regions. A jet body having an arcuate fluid jet emanator is incorporated in order to minimize size at the distal portion of a minimally sized catheter tube.
    Type: Application
    Filed: July 16, 2008
    Publication date: November 27, 2008
    Applicant: POSSIS MEDICAL, INC.
    Inventors: Debra M. Kozak, Douglas J. Ball, John L. Tedeschendorf, Eric J. Thor, David B. Morris, Michael J. Bonnette, Stephen E. Weisel
  • Publication number: 20080188793
    Abstract: The present invention pertains to a miniature flexible thrombectomy catheter having one or more flexible miniature noncollapsing tubular portions including pushable and torqueable structure for introduction into the smaller vessels in neurovascular regions. A jet body having an arcuate fluid jet emanator is incorporated in order to minimize size at the distal portion of a minimally sized catheter tube.
    Type: Application
    Filed: February 6, 2007
    Publication date: August 7, 2008
    Inventors: Debra M. Kozak, Douglas J. Ball, John L. Teschendorf, Eric J. Thor, David B. Morris, Michael J. Bonnette, Stephen E. Weisel
  • Publication number: 20080188831
    Abstract: The present invention pertains to a miniature flexible thrombectomy catheter having one or more flexible miniature noncollapsing tubular portions including pushable and torqueable structure for introduction into the smaller vessels in neurovascular regions. A jet body having an arcuate fluid jet emanator is incorporated in order to minimize size at the distal portion of a minimally sized catheter tube.
    Type: Application
    Filed: February 6, 2007
    Publication date: August 7, 2008
    Inventors: Michael J. Bonnette, Eric J. Thor, Debra M. Kozak, David B. Morris, John L. Teschendorf, Douglas J. Ball, Stephen E. Weisel
  • Patent number: 6872303
    Abstract: The water treatment cartridge is a cartridge adapted to fit into a conventional water filter housing to release a sanitizing dose of a water-treating chemical, and in particular chlorine dioxide, into a water treatment system or unit process. The cartridge is filled with a water treating media, comprised preferably of a mixture of an inert filler material and a chemical composition that releases chlorine dioxide on contact with water. The concentration of the chlorine dioxide released into the water, as well as the duration of the release, may be varied by the selection of the filler material and amount of the filler material in the water treating media.
    Type: Grant
    Filed: August 12, 2003
    Date of Patent: March 29, 2005
    Inventors: Ian M. Knapp, David B. Morris
  • Patent number: 4863352
    Abstract: Blade carrying means for variable pitch propulsor blades of a gas turbine engine are disclosed. The blade carrying means comprise dual, axially positioned rings and a plurality of generally cylindrical bearing journals supported between the rings. Each of the journals has a radially outer and inner edge and is adapted to support a single propulsor blade. The blade carrying means also comprise stiffening means, such as a bulkhead attached to the inner edge, for preventing distortion of the journal inner edge.
    Type: Grant
    Filed: November 2, 1984
    Date of Patent: September 5, 1989
    Assignee: General Electric Company
    Inventors: Ambrose A. Hauser, Thomas G. Wakeman, William J. Strock, David B. Morris
  • Patent number: 4718577
    Abstract: A suspendable dispenser pack container for flowable substances, such as liquids, pastes, powders and fine granules, made up of an outer carton (1) and bag (3) fitted inside it. The bag (3) has at its top end a loop (25), through which a tube (22) is placed, which together with the loop (25) is positioned in relation to a location aperture (12) at the same point in the side wall (11) of the outer carton (1). The bag (3) has at the bottom end a connector (38) and is of such a length that when the base (5) of the outer carton (1) is open, the connector (38) protrudes at least as far as the opened flaps (6, 7, 8, 9) of the outer carton (1).
    Type: Grant
    Filed: July 7, 1986
    Date of Patent: January 12, 1988
    Assignee: Bayer Aktiengesellschaft
    Inventors: David B. Morris, Andrew C. Rollett, Donald M. Roberts, Christopher D. Emmerson
  • Patent number: 4714177
    Abstract: To avoid internal and external soiling in a device for the metering of chemicals, particularly for seed treatment, a special storage system unit (1) is provided which can be loaded with disposable packages (3a, 3b, 3c) which are connected by means of couplings (13) to a supply line (16) leading to an atomizer (58), in which arrangement a metering unit (41) is arranged in the supply line (16) and the entire liquid-carrying system from the packages (3a, 3b, 3c) to the atomizer (58) is closed off to the working environment.
    Type: Grant
    Filed: July 7, 1986
    Date of Patent: December 22, 1987
    Assignee: Bayer Aktiengesellschaft
    Inventors: David B. Morris, Andrew C. Rollett, Donald M. Roberts