Flexible elongate device having a vibratory impact tip and method of its use
First Claim
1. A flexible elongate device comprising a flexible elongate tubular member having proximal and distal extremities, a flexible coil spring having proximal and distal extremities, means securing the proximal extremity of the coil spring to the distal extremity of the flexible elongate tubular member, a rounded tip secured to the distal extremity of the coil spring, a flexible elongate element having proximal and distal extremities disposed within said coil spring and having an axis extending longitudinally of the coil spring, means securing the distal extremity of the flexible elongate element to the rounded tip and means secured to the proximal extremity of the flexible elongate element for imparting vibratory motion to the flexible elongate element to cause vibratory impact motion of the rounded tip in a direction longitudinal of the axis of the flexible elongate element.
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Accused Products
Abstract
A flexible elongate device including a flexible elongate tubular member having proximal and distal extremities. A flexible coil spring is provided having proximal and distal extremities. The proximal extremity of the coil spring is secured to the distal extremity of the flexible elongate tubular member. A rounded tip is secured to the distal extremity of the coil spring. A flexible elongate element having proximal and distal extremities is disposed within said coil spring and extends longitudinally of the coil spring. The distal extremity of the flexible elongate element is secured to the rounded tip. A vibrator is secured to the proximal extremity of the flexible elongate element for imparting vibratory motion to the flexible elongate element to cause vibratory impact motion of the rounded tip in a direction longitudinal of the axis of the flexible elongate element.
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Citations
12 Claims
- 1. A flexible elongate device comprising a flexible elongate tubular member having proximal and distal extremities, a flexible coil spring having proximal and distal extremities, means securing the proximal extremity of the coil spring to the distal extremity of the flexible elongate tubular member, a rounded tip secured to the distal extremity of the coil spring, a flexible elongate element having proximal and distal extremities disposed within said coil spring and having an axis extending longitudinally of the coil spring, means securing the distal extremity of the flexible elongate element to the rounded tip and means secured to the proximal extremity of the flexible elongate element for imparting vibratory motion to the flexible elongate element to cause vibratory impact motion of the rounded tip in a direction longitudinal of the axis of the flexible elongate element.
- 8. A method for crossing a stenosis of a totally or almost totally occluded vessel of a patient by the use of a flexible elongate device having proximal and distal extremities and having a coil spring with proximal and distal extremities with the proximal extremity of the coil spring secured to the distal extremity of the flexible elongate device and a rounded tip secured to the distal extremity of the coil spring and electrically actuatable means carried by the distal extremity of the flexible elongate device and connected to the rounded tip for imparting vibratory motion to the rounded tip comprising advancing the rounded tip of the device into the vessel into contact with the stenosis, supplying electrical energy from the proximal extremity to the electrically actuable means at the distal extremity of the flexible elongate device to generate substantially undamped vibratory motion solely at the distal extremity of the flexible elongate device so as to impart vibratory motion to the rounded tip to facilitate advancement of the rounded tip through the stenosis to form a passage through the stenosis without danger of penetrating the wall of the vessel.
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12. A flexible elongate device for crossing a stenosis of a totally or almost totally occluded vessel of a patient comprising a flexible elongate tubular member having proximal and distal extremities, a flexible coil spring having proximal and distal extremities and having an axis, means securing the proximal extremity of the coil spring to the distal extremity of the flexible elongate tubular member, a rounded tip secured to the distal extremity of the coil spring, electrically actuatable means carried by the distal extremity of the flexible elongate tubular member and connected to the rounded tip and means for supplying electrical energy from the proximal extremity of the flexible elongate tubular member to the electrically actuable means at the distal extremity of the flexible elongate tubular member to generate substantially undamped vibratory motion solely at the distal extremity of the flexible elongate tubular member which is imparted to the rounded tip in a direction longitudinal of the axis of the coil spring.
Specification