Patents by Inventor Mark A. Hoekwater

Mark A. Hoekwater 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: 6589274
    Abstract: A stent delivery catheter includes an extendable shaft portion, a tubular balloon mounted thereon, a stent and a pair of elastic retaining caps. The balloon is mounted onto the catheter at a mounted length that is shorter than the formed length of the balloon to generate excess balloon material which is gathered into circumferential folds. The extendable portion of the catheter shaft elongates in response to tension applied by the balloon as the folds open during inflation. Elongation of the catheter shaft drives the retaining caps apart to uncover the ends of the stent.
    Type: Grant
    Filed: March 23, 2001
    Date of Patent: July 8, 2003
    Assignee: Medtronic AVE, Inc.
    Inventors: Mark L. Stiger, Michael A. Mohn, Mark Hoekwater, Lior Sobe
  • Publication number: 20020138128
    Abstract: A stent delivery catheter includes an extendable shaft portion, a tubular balloon mounted thereon, a stent and a pair of elastic retaining caps. The balloon is mounted onto the catheter at a mounted length that is shorter than the formed length of the balloon to generate excess balloon material which is gathered into circumferential folds. The extendable portion of the catheter shaft elongates in response to tension applied by the balloon as the folds open during inflation. Elongation of the catheter shaft drives the retaining caps apart to uncover the ends of the stent.
    Type: Application
    Filed: March 23, 2001
    Publication date: September 26, 2002
    Inventors: Mark L. Stiger, Michael A. Mohn, Mark Hoekwater, Lior Sobe
  • Patent number: 5772642
    Abstract: A method and apparatus for a closed end catheter system comprising a catheter body defining a tool lumen sized to receive an elongated tool. The distal end of the tool lumen has a plug therein. A guidewire lumen extends within the catheter body and is sized to receive a guidewire. The guidewire lumen extends along at least a portion of the length of the tool lumen such that the tool lumen and the guidewire lumen are in a biaxial relationship. The elongated tool has a distal tip and a working portion near the distal tip. Two marker bands are affixed to the catheter body and are separated from each other by a distance of not less than the length of the working portion of the tool. The elongated tool extends longitudially through the tool lumen such that when the distal end of the tool rests against the plug, the working portion of the tool is located between the first and second marker bands.
    Type: Grant
    Filed: February 19, 1997
    Date of Patent: June 30, 1998
    Assignee: Medtronic, Inc.
    Inventors: Sam Ciamacco, Jr., Mark A. Hoekwater, Glen L. Lieber, Michael A. Baker
  • Patent number: 5429614
    Abstract: An improved drug delivery system and method for reconstituting drugs are provided. The system allows the delivery of a medicament from a drug vial (40) directly into an intravenous line to a patient. The system provides a method and an apparatus that insures that the drug vial (40) is properly pierced and the vial (40) is locked into an activated position when it is desired to use the same. To this end, a vial retaining member (50) for coupling the vial (40) to a cartridge (12) including a cannula (22) is provided. The retaining member (50) includes a cannula centering member extending from an end thereof.
    Type: Grant
    Filed: June 30, 1993
    Date of Patent: July 4, 1995
    Assignee: Baxter International Inc.
    Inventors: Thomas A. Fowles, Richard A. Rollins, Mark A. Hoekwater
  • Patent number: 5423753
    Abstract: An adapter for interconnecting in fluid communication a first connection site and a beneficial agent container having a closure. The adapter includes a plate having first and second connection site sides. A wall extends from the plate from the second connection site side and constructed to surround only the closure. This allows containers having varying sized bodies to be received. A cannula structure is rigidly secured in the plate and defines a flow path extending through the plate. The adapter can be provided in an assembly with the beneficial agent contained or in a drug delivery system.
    Type: Grant
    Filed: June 16, 1994
    Date of Patent: June 13, 1995
    Assignee: Baxter International Inc.
    Inventors: Thomas A. Fowles, Nick Fotis, Charles Eller, Brian J. Gorman, Mark A. Hoekwater
  • Patent number: 5356380
    Abstract: A drug delivery device is provided comprising a cartridge body including an upper portion defining a vial receiving area and terminating in a wall, the cartridge body including a cannula extending from the wall. A vial including a beneficial agent is coupled by a retaining member to the cartridge body in an inactivated position. The retaining member allows the vial to move to an activated position. The retaining member including an outer member and an inner member, the inner member separating from portions of the outer member as the vial moves from the inactivated position to the activated position.
    Type: Grant
    Filed: October 23, 1991
    Date of Patent: October 18, 1994
    Assignee: Baxter International Inc.
    Inventors: Mark Hoekwater, Jeffrey S. Nordquist, Thomas A. Fowles, James Sertic, Brian J. Gorman
  • Patent number: 4919389
    Abstract: A large bore tubing roller clamp assembly for regulating the flow rate of a liquid through large bore tubing is disclosed. The roller clamp assembly comprises a substantially rigid elongated plastic frame, a generally cylindrical roller, and a length of a large bore tubing disposed within the frame. The flow rate through the tubing is controlled by moving the roller along an inclined roller track and over the tubing, thereby selectively compressing tubing to attain the desired flow rate.
    Type: Grant
    Filed: March 17, 1989
    Date of Patent: April 24, 1990
    Assignee: Baxter International Inc.
    Inventors: Mark A. Hoekwater, Anthony R. Paren, Thomas Kasting, Richard Rollins
  • Patent number: D319506
    Type: Grant
    Filed: May 17, 1989
    Date of Patent: August 27, 1991
    Assignee: Baxter International Inc.
    Inventors: Birendra K. Lal, Steven K. Neuenfeldt, Mark A. Hoekwater