Abstract: An angioplasty procedure wherein a balloon dilatation catheter is movably positioned within an anchoring catheter and which in turn is located within a guiding catheter or wherein a balloon dilatation catheter is movably positioned within a guiding catheter and the anchoring catheter in turn is positioned on the external surface of the guiding catheter, or wherein a balloon dilatation catheter is movably positioned within a catheter which serves both as a guiding catheter and anchoring catheter. Additionally, valve elements are attached to the guiding and anchoring catheters to provide points of securement between the catheters and the balloon dilatation catheter and to prevent the backflow of blood through the catheter assembly. Actuation of the valve elements allows a doctor to control the movement of the catheters.

Abstract: An angioplasty catheter assembly having an anchoring catheter within a guide catheter such that the anchoring catheter anchors to the guide catheter and the inner wall of a coronary artery; the anchoring catheter has an opening in its tubular wall such that a guide wire and balloon dilatation catheter can be disposed therethrough and extending through the length of the anchoring catheter.

Abstract: An automobile guidance system having an automobile with an exterior, a gas pedal, a brake pedal, and a steering wheel. The system also has a global positioning system and a plurality of ultrasound/radiofrequency detectors/transmitters in communication with a control unit within the automobile. The control unit receives information from the ultrasound/radiofrequency detectors/transmitters and/or the global positioning system. Then, based upon this information the control unit is able to actuate the gas pedal, the brake, and steering wheel to operate the automobile.

Abstract: An angioplasty catheter assembly having an anchoring catheter within a guide catheter such that the anchoring catheter anchors to the guide catheter and the inner wall of a coronary artery; the anchoring catheter has an opening in its tubular wall such that a guide wire and balloon dilatation catheter can be disposed therethrough and extending through the length of the anchoring catheter.

Abstract: An angioplasty procedure wherein a balloon dilatation catheter is movably positioned within an anchoring catheter which in turn is located within a guiding catheter. Internal balloons in the anchoring catheter can be inflated to anchor it to the balloon dilatation catheter. External balloons on the anchoring catheter can be inflated to anchor it to the inside of the guiding catheter. The balloons can be selectively inflated and deflated. Other external balloons on the inner end and outer surface can be inflated to secure the anchoring catheter within the blood vessel beyond the inner end of the guiding catheter. Perforations appear in the anchor catheter to permit blood to flow inside and outside thereof. An angioplasty method whereby a conventional guide catheter is inserted into the blood vessel to a location just short of the narrowed portion of the blood vessel.