Telescoping guide catheter with peel-away outer sheath
First Claim
Patent Images
1. A guide catheter having proximal and distal ends, comprising:
- an outer guide having an open lumen and a longitudinal pre-stress line extending between a distal end and a proximal end of the outer guide;
an inner guide having an open lumen, the inner guide movably disposed within the open lumen of the outer guide such that the inner guide can rotate axially and translate longitudinally relative to the outer guide;
a guide handle having a distal end connected to the proximal end of the outer guide, the guide handle separable into at least two sections such that guide handle separation splits the outer guide along the longitudinal pre-stress line at the proximal end of the outer guide, the outer guide further splitting along the longitudinal pre-stress line upon outer guide retraction in a proximal direction relative to the inner guide; and
a steering member disposed along the outer guide, a distal end of the steering member connected at a distal end of the outer guide, and a proximal end of the steering member accessible at the proximal end of the outer guide, whereby application of a tensile force to the proximal end of the steering member effects deflection of the distal end of the outer guide.
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Abstract
A guide catheter employs a retractable inner guide movably disposed within an open lumen of a splittable outer guide. The outer guide includes a longitudinal pre-stress line extending from distal to proximal ends. The inner guide includes an open lumen adapted to receive a payload. The inner guide is translatable and rotatable relative to the outer guide. The guide catheter further includes a proximally attached guide handle which is separable into at least two sections. Separation of the guide handle splits the proximal end of the outer guide. Proximal outer guide retraction continues the splitting of the outer guide along the longitudinal pre-stress line.
91 Citations
25 Claims
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1. A guide catheter having proximal and distal ends, comprising:
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an outer guide having an open lumen and a longitudinal pre-stress line extending between a distal end and a proximal end of the outer guide; an inner guide having an open lumen, the inner guide movably disposed within the open lumen of the outer guide such that the inner guide can rotate axially and translate longitudinally relative to the outer guide; a guide handle having a distal end connected to the proximal end of the outer guide, the guide handle separable into at least two sections such that guide handle separation splits the outer guide along the longitudinal pre-stress line at the proximal end of the outer guide, the outer guide further splitting along the longitudinal pre-stress line upon outer guide retraction in a proximal direction relative to the inner guide; and a steering member disposed along the outer guide, a distal end of the steering member connected at a distal end of the outer guide, and a proximal end of the steering member accessible at the proximal end of the outer guide, whereby application of a tensile force to the proximal end of the steering member effects deflection of the distal end of the outer guide. - View Dependent Claims (2, 3, 4, 5, 6, 7, 8, 9, 10, 11, 12)
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13. A guide catheter for delivery of a payload into a patient'"'"'s heart, comprising:
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an outer guide having an open lumen and a longitudinal pre-stress line extending between a distal end and a proximal end of the outer guide; an inner guide having an open lumen adapted to receive the payload, the inner guide movably disposed within the open lumen of the outer guide such that the inner guide can rotate axially and translate longitudinally relative to the outer guide, the inner guide having a stiffness less than that of the outer guide; a guide handle having a distal end connected to the proximal end of the outer guide, the guide handle separable into at least two sections such that guide handle separation splits the outer guide along the longitudinal pre-stress line at the proximal end of the outer guide, the outer guide further splitting along the longitudinal pre-stress line upon outer guide retraction in a proximal direction relative to the inner guide, the stiffness of the inner guide relative to the outer guide sufficient to inhibit dislodgment of the payload as the outer guide moves in a proximal direction over the inner guide during outer guide retraction; and a steering member disposed along the outer guide, a distal end of the steering member connected at a distal end of the outer guide, and a proximal end of the steering member accessible at the proximal end of the outer guide, whereby application of a tensile force to the proximal end of the steering member effects deflection of the distal end of the outer guide. - View Dependent Claims (14, 15, 16, 17, 18, 19, 20, 21, 22, 23, 24, 25)
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Specification