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US 5,163,910 AGranted
Intracatheter perfusion pump apparatus and method
AssigneeMayo Foundation for Medical Education and Research
InventorsRobert S. Schwartz, Joseph G. Murphy
Life of this patent
Estimating the term…
Abstract
An intracatheter pump apparatus and method is described for infusing fluids through a lumen of a catheter. The intracatheter pump includes a motor or power source on the outside of the catheter which causes movement of a fluid moving mechanism positioned in the lumen of the catheter, the fluid moving mechanism being attached to the distal end of an elongated member which in turn is attached to the motor.
Claims11
An angioplasty catheter apparatus, comprising:
- an angioplasty catheter having an inflatable balloon at an end of the catheter, the catheter having a lumen through which fluids may be perfused, the lumen having at least one fluid communication port positioned at a proximal side of the catheter balloon and at least one fluid communication port positioned at a distal side of the catheter balloon said distal and proximal ports being positioned in the wall of said lumen,
- an elongated member having a proximal end and a distal end and being positionable in the lumen of the catheter,
- a motor mechanically connectable to the proximal end of the elongated member for moving the elongated member, and
- a fluid moving mechanism attached to the elongated member proximate the distal ned thereof, movement of the fluid moving mechanism causing localized fluid flow within the lumen of the catheter between the fluid communication ports of the proximal side of the catheter balloon and the fluid communication ports at the distal side of the catheter balloon.
1 more element
A method of angioplasty treatment comprising the steps of:
- positioning a balloon catheter having a fluid perfusion lumen in a body vessel to be treated;
- inserting an elongated member having a fluid moving mechanism attached to a distal end thereof into the perfusion lumen of the catheter, the fluid moving mechanism being positioned proximate the catheter balloon;
- inflating the catheter balloon at a location o the body vessel so as to engage the inner surfaces of the body vessel and thereby dilate the vessel;
- and
- moving the elongated member such that the fluid moving mechanism moves fluid longitudinally of the lumen between fluid communication ports positioned at a proximal side of the balloon and at a distal side of the balloon said ports being in the wall of said lumen;
- whereby fluid is perfused through the lumen from an upstream side of where the catheter balloon obstructs the body vessel to a downstream side of the obstruction.
3 more elements
Dependencies are inferred from the claim text.