Patents Assigned to Catheter Technology Corp.
  • Catheter dilator/sheath assembly and method
    Patent number: 4772266
    Abstract: Dilator/sheath assemblies for unstressed placement of catheter tubes into a body cavity of medical patients, which insure a stable axial relationship between concentrically superimposed sheath and dilator so that use is very facile for the medical attendent and insures a predetermined two-step gentle enlargement of a puncture site to accommodate unstressed placement of a catheter tube into a vein or artery through the puncture site and with minimal trauma to the patient.
    Type: Grant
    Filed: May 4, 1987
    Date of Patent: September 20, 1988
    Assignee: Catheter Technology Corp.
    Inventor: LeRoy E. Groshong
  • Inseparable port/catheter tube assembly and methods
    Patent number: 4772270
    Abstract: A port/catheter tube assembly which insures a stable essentially inseparable connection between the hollow male outlet stem of the port and the proximal end of the catheter tube, thereby insuring a continual supply of medication to the desired patient site while preventing inadvertent harm caused by unintended leakage of such medication into improper tissue sites due to separation of the catheter tube from the port or due to kinking.
    Type: Grant
    Filed: June 18, 1987
    Date of Patent: September 20, 1988
    Assignee: Catheter Technology Corp.
    Inventors: Thomas A. Wiita, Harvey R. Moorehead, Karl L. Schatten
  • Catheter tube coupling assembly and methods
    Patent number: 4772276
    Abstract: A port/catheter tube assembly which insures a stable essentially inseparable connection between the hollow male outlet stem of the port and the proximal end of the catheter tube, thereby insuring a continual supply of medication to the desired patient site while preventing inadvertent harm caused by unintended leakage of such medication into improper tissue sites due to separation of the catheter tube from the port or due to kinking.
    Type: Grant
    Filed: July 27, 1987
    Date of Patent: September 20, 1988
    Assignee: Catheter Technology Corp.
    Inventors: Thomas A. Wiita, Harvey R. Moorehead, Karl L. Schatten
  • Valved two-way catheter
    Patent number: 4701166
    Abstract: Catheter of soft, flexible material is formed with closed end. Fluid opening formed by single slit through tubing wall of such length that valve will open only upon application of predetermined pressure differentials. Removable stiffener member is positioned in catheter, abutting closed end to push catheter into body vessel when inserting.
    Type: Grant
    Filed: October 2, 1986
    Date of Patent: October 20, 1987
    Assignee: Catheter Technology Corp.
    Inventors: LeRoy E. Groshong, Ronald J. Brawn
  • Valved two-way catheter
    Patent number: 4671796
    Abstract: Catheter of soft, flexible material is formed with closed end. Fluid opening formed by single slit through tubing wall of such length that valve will open only upon application of predetermined pressure differentials. Removable stiffener member is positioned in catheter, abutting closed end to push catheter into body vessel when inserting.
    Type: Grant
    Filed: October 25, 1985
    Date of Patent: June 9, 1987
    Assignee: Catheter Technology Corp.
    Inventors: LeRoy E. Groshong, Ronald J. Brawn