Abstract: This invention relates to steerable catheters. More particularly, this invention relates to steerable catheters comprising a flexible catheter comprising a spring coil body defining a lumen, the spring coil body having a flexible covering thereon; a deflection wire, the distal end of the deflection wire being attached to the distal end of the spring coil body; and control means attached to the proximal end of the catheter, the proximal end of the deflection wire extending through the control means and the control means having a torque means which fixedly engages said deflection wire.

Abstract: This invention relates to corporeal catheters. More particularly, this invention relates to an outer exchange catheter system comprising an outer catheter sheath and at least one inner catheter having a control means, the outer catheter sheath extending less than the full length of each inner catheter and being slidable thereover. This invention also relates to the method of using this outer exchange catheter system.

Abstract: This invention relates to steerable catheters. More particularly, this invention relates to a steerable catheter comprising a flexible catheter member having distal and proximal ends and one or more lumens, the single lumen or one of the lumens being closed at its distal end, the one or more other lumens being open, for introduction of a central guide wire or other desired object; a deflection wire having distal and proximal ends and axially extending the length of the catheter member through the lumen having the closed end, the distal end of the deflection wire being embedded in the closed end; and control means attached to the proximal end of the catheter member, the proximal end of the deflection wire extending to the control means and the control means having an engaging means which fixedly engages the deflection wire.

Abstract: This invention relates to corporeal catheters. More particularly, this invention relates to an outer exchange catheter system comprising an outer catheter sheath and at least one steerable inner catheter having a control means, said outer catheter sheath extending less than the full length of each said inner catheter and being slidable thereover.

Abstract: This invention relates to steerable thru-lumen catheters and a method of using same, especially in the cardiovascular field.

Abstract: The present invention is directed to a steerable guidewire. More specifically, the invention is directed to a guidewire which comprises flexible tubing having proximal and distal ends and inner and outer surfaces, a helically wound flexible spring coil having proximal and distal ends, the proximal end of the spring coil being attached to the flexible tubing and the distal end of the spring coil comprising stretched coils, a deflection wire extending through the flexible tubing and spring coil, the deflection wire having proximal and distal ends, optionally a control wire having proximal and distal ends, the proximal end of the control wire being attached to the spring coil proximal to the stretched coils, and a rounded tip engaging the distal end of the spring coil, the distal end of the deflection wire, and the distal end of the control wire.

Abstract: The present invention is directed to a steerable guidewire. More specifically, the invention is directed to a guidewire which comprises flexible tubing having proximal and distal ends and inner and outer surfaces, a helically wound flexible spring coil having proximal and distal ends, the proximal end of the spring coil being attached to the flexible tubing and the distal end of the spring coil comprising stretched coils, a deflection wire extending through the flexible tubing and spring coil, the deflection wire having proximal and distal ends, optionally a control wire having proximal and distal ends, the proximal end of the control wire being attached to the spring coil proximal to the stretched coils, and a rounded tip engaging the distal end of the spring coil, the distal end of the deflection wire, and the distal end of the control wire.