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Intravascular catheter assembly

  • US 4,314,555 A
  • Filed: 02/04/1980
  • Issued: 02/09/1982
  • Est. Priority Date: 02/20/1979
  • Status: Expired due to Term
First Claim
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1. An intravascular catheter assembly which comprises:

  • a catheter hub;

    a flexible catheter tube which is provided with an axially extending hole, and whose proximal end is fixed to said catheter hub;

    a cannula which is detachably inserted into the axially extending hole, with the distal end of said cannula arranged to protrude from the distal end of the flexible catheter tube and the proximal end of said cannula being provided with a tubular hub;

    a rigid connector which is fitted to the proximal end of the catheter hub with a flexible tube interposed between said connector and the catheter hub;

    a seal cap which is fitted around the connector, the an axially extending hole, and whose inner wall tightly abuts against the outer wall of the cannula when the cannula passes through said axially extending hole;

    a cannula-locating bar, one end of which is fixed to the peripheral surface of a tubular hub of the cannula, and the other end of which projects toward the proximal end of the catheter hub; and

    a stopper which is mounted on the peripheral surface of the catheter hub to abut against the distal end of the cannula-locating bar, thereby defining the extent to which the cannula is inserted into the catheter tube.

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