Bypass catheter
OwnerDaniel Ezra Walzmaninventor
Life of this patent
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Abstract
A surgical apparatus for treating a vessel blockage in a vessel of a patient having an elongated member having an outer wall, a first hole at a distal portion and a second hole spaced proximally from the first hole positioned in a side wall. A first lumen is provided within the elongated member for blood flow through the second hole, through the lumen and exiting the first hole to maintain blood flow during treatment of the vessel blockage. A motor driven impeller is rotatable during blood flow through the first lumen to enhance blood flow as blood flows into the second hole positioned proximal of the vessel blockage and exits the first hole distal of the vessel blockage during injection of fluid through one or more openings to treat the vessel blockage.
Claims17
A surgical apparatus for treating a blood vessel blockage of a patient, the surgical apparatus comprising:
- a) an elongated member having a wall, a first hole at a distal portion and a second hole spaced proximally from the first hole, the elongated member terminating in the first hole, the second hole positioned in a side of the wall, and a third hole at a proximal end of the elongated member, the elongated member having an outer surface extending continuously longitudinally from the second hole to the first hole;
- b) a first lumen within the elongated member for blood flow through the second hole, through the first lumen and exiting the first hole to maintain blood flow during treatment of the vessel blockage;
- c) at least one opening positioned between the first hole and the second hole for outflow of fluid through the opening to treat the blood vessel blockage, the at least one opening positioned in a circumferential region of the elongated member;
- d) a second lumen within the elongated member communicating with the at least one opening, the second lumen forming a channel for injection of fluid through the at least one opening into the vessel to treat the vessel blockage, the second lumen embedded in the wall of the elongated member to limit obstruction of blood flow through the first lumen of the elongated member;
- and
- e) a motor driven impeller having the motor and impeller positioned in the first lumen, the impeller rotatable during blood flow through the first lumen;
- f) wherein blood flows into the second hole positioned proximal of the vessel blockage and exits the first hole distal of the vessel blockage during injection of the fluid to treat the vessel blockage and during rotation of the impeller;
- g) wherein blood flows through the first hole and out the third hole during reverse blood flow,
- h) the elongated member having a plurality of exposed flow enhancing energy emitting elements to emit energy to aid treatment of the vessel blockage to enhance flow of the fluid by increasing the permeability of the fluid in the blood clot, wherein the plurality of energy emitting elements are disposed on and spaced along the wall of the elongated member between the first and second holes and adjacent the at least one opening in the circumferential region of the elongated member and emit energy simultaneously with injection of fluid;
- and
- i) a plurality of wires connecting an energy source to the plurality of energy emitting elements, the plurality of wires embedded in the wall of the elongated member to limit obstruction of blood flow through the first lumen of the elongated member.
Dependencies are inferred from the claim text.