Patents Assigned to Medical Parameters, Inc.
  • Patent number: 5810012
    Abstract: A guidewire advancement system for inserting catheter guidewires into blood vessels, and more particularly a guidewire dispensing system for the controlled sterile insertion of a coiled spring guidewire to avoid infection of the patient. The system provides for the transmission of an electrical signal by the guidewire to determine its location within the body.
    Type: Grant
    Filed: May 31, 1995
    Date of Patent: September 22, 1998
    Assignee: Medical Parameters, Inc.
    Inventors: Arthur S. Lynch, A. Walter MacEachern
  • Patent number: 5800384
    Abstract: A multi-lumen percutaneous introducer for introducing a catheter and fluids into a body lumen includes an introducer sheath having a first lumen for receiving a catheter and a second lumen within the sheath having a proximal opening for receiving fluids and a distal opening for delivering fluids into the body lumen. A port in alignment with the first lumen receives the catheter when the catheter is inserted through the first lumen into the body lumen.
    Type: Grant
    Filed: April 3, 1997
    Date of Patent: September 1, 1998
    Assignee: Medical Parameters, Inc.
    Inventors: Michael A. Russell, Arthur S. Lynch
  • Patent number: 5448993
    Abstract: A guidewire advancement system for inserting catheter guidewires into blood vessels, and more particularly a guidewire dispensing system for the controlled sterile insertion of a coiled spring guidewire to avoid infection of the patient. The system provides for the transmission of an electrical signal by the guidewire to determine its location within the body.
    Type: Grant
    Filed: March 31, 1994
    Date of Patent: September 12, 1995
    Assignee: Medical Parameters, Inc.
    Inventors: Arthur S. Lynch, A. Walter MacEachern
  • Patent number: 5438993
    Abstract: A guidewire advancement system for inserting catheter guidewires into blood vessels, and more particularly a guidewire dispensing system for the controlled sterile insertion of a coiled spring guidewire to avoid infection of the patient. The system provides for the transmission of an electrical signal by the guidewire to determine its location within the body.
    Type: Grant
    Filed: April 26, 1994
    Date of Patent: August 8, 1995
    Assignee: Medical Parameters, Inc.
    Inventors: Arthur S. Lynch, A. Walter MacEachern
  • Patent number: 5273042
    Abstract: A guidewire advancement system for inserting catheter guidewires into blood vessels, and more particularly a guidewire dispensing system for the controlled sterile insertion of a coiled spring guidewire to avoid infection of the patient. The system provides for the transmission of an electrical signal by the guidewire to determine its location within the body.
    Type: Grant
    Filed: November 5, 1991
    Date of Patent: December 28, 1993
    Assignee: Medical Parameters, Inc.
    Inventors: Arthur S. Lynch, A. Walter MacEachern
  • Patent number: 5186179
    Abstract: A guidewire advancement system for inserting catheter guidewires into blood vessels, and more particularly a guidewire dispensing system for the controlled sterile insertion of a coiled spring guidewire to avoid infection of the patient. The system provides for the transmission of an electrical signal by the guidewire to determine its location within the body.
    Type: Grant
    Filed: March 25, 1992
    Date of Patent: February 16, 1993
    Assignee: Medical Parameters, Inc.
    Inventor: A. Walter MacEachern
  • Patent number: 4917094
    Abstract: A guidewire advancement system for inserting catheter guidewires into blood vessels, and more particularly a guidewire dispensing system for the controlled sterile insertion of a coiled spring guidewire to avoid infection of the patient. The system provides for the transmission of an electrical signal by the guidewire to determine its location within the body.
    Type: Grant
    Filed: June 27, 1989
    Date of Patent: April 17, 1990
    Assignee: Medical Parameters Inc.
    Inventors: Arthur S. Lynch, A. Walter MacEachern
  • Patent number: 4857062
    Abstract: The catheter insertion valve of the present invention comprises a central tubular body and a non-removable tubular cap that can be screwed onto the body wherein a bore extending through the body and the cap defines a pathway for a catheter. Such catheters are inserted into arteries, organs or body cavities for the purpose of introducing medications of instruments for treatment, diagnosis or the performing of in vivo procedures. A seal located within the central body of the valve is used to form a fluid-tight seal about the catheter, guidewire or other instrument extending therethrough. Alternatively, the seal can completely close off the pathway when it is not being used for catheter insertion thereby preventing air entrainment. The central body is provided with one or more seal position indicators to indicate to the operator that a seal has been formed about a catheter or guidewire of standard dimension. The seal is manually adjusted by rotating the non-removable cap.
    Type: Grant
    Filed: March 9, 1988
    Date of Patent: August 15, 1989
    Assignee: Medical Parameters, Inc.
    Inventor: Michael A. Russell