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Hydrodynamically propelled catheter

  • US 4,717,381 A
  • Filed: 05/13/1986
  • Issued: 01/05/1988
  • Est. Priority Date: 05/13/1985
  • Status: Expired due to Fees
First Claim
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1. A hydrodynamically propelled catheter of the type primarily used for insertion of temporary pacemaker into the right ventricle of a patient'"'"'s heart, said catheter comprising;

  • an elongated flexible catheter tube for insertion through the patient'"'"'s blood vessels into the right ventricle, said catheter tube having a cephalic end and a rearward end;

    said cephalic end including a plurality of rearwardly facing ports substantially equally spaced around the perimeter thereof, eaach of said ports including an axis which defines an angle with the axis of said catheter tube of from about 5°

    to about 30°

    ;

    said catheter tube further having at least one fluid lumen disposed longitudinally inside said tube, a distal end of said fluid lumen being in fluid-communicating relation to at least one of said ports and a rearward end of said fluid lumen exiting said catheter tube rearward end, said fluid lumen rearward end being operatively connected to a fluid source whereby fluid may pass from the source through said fluid lumen and be expelled through at least said one port to impart a forward thrust to said cephalic end;

    said catheter further comprising spaced apart first and second pacing electrodes, said first electrode being disposed substantially adjacent said cephalic end and said second electrode being disposed rearwardly of said cephalic end, both said first and second electrodes being positioned for electrical contact with the patient and being operatively connected to a source of electricity whereby an electrical stimulus may be applied to the patient'"'"'s heart.

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