Dilatation and stent delivery system and related methods
First Claim
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1. A stent delivery catheter comprising:
- an inner shaft with an inner shaft handle secured thereto, the inner shaft defining an inner shaft lumen extending along a longitudinal axis;
a shaft extendable through the inner shaft lumen; and
a lock mechanism engaged to the inner shaft handle, the lock mechanism including a tubular member within a lumen of the inner shaft handle, the tubular member having a lumen in communication with the inner shaft lumen, the shaft extending through the lumen of the tubular member into the inner shaft lumen;
wherein the tubular member is deflectable inwardly to press against the shaft to lock the shaft from moving along the longitudinal axis relative to the inner shaft.
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Abstract
The invention relates to a system for dilatation of a body passage and delivery of a stent into the body passage of a patient, and related methods of using such a system. The dilatation and stent delivery system may comprise a dilatation catheter having an expandable member on a distal end, and a stent delivery catheter configured to retain a stent and deliver the stent to a body passage. The stent delivery catheter defines a lumen sized to receive the dilatation catheter and permit movement of the dilatation catheter relative to the stent delivery catheter.
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Citations
19 Claims
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1. A stent delivery catheter comprising:
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an inner shaft with an inner shaft handle secured thereto, the inner shaft defining an inner shaft lumen extending along a longitudinal axis; a shaft extendable through the inner shaft lumen; and a lock mechanism engaged to the inner shaft handle, the lock mechanism including a tubular member within a lumen of the inner shaft handle, the tubular member having a lumen in communication with the inner shaft lumen, the shaft extending through the lumen of the tubular member into the inner shaft lumen; wherein the tubular member is deflectable inwardly to press against the shaft to lock the shaft from moving along the longitudinal axis relative to the inner shaft. - View Dependent Claims (2, 3, 4, 5, 6, 7, 8, 9, 10, 11)
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12. A system comprising:
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a stent delivery catheter including a handle with a lock mechanism, the stent delivery catheter having a lumen extending along a longitudinal axis; a dilatation catheter with a lock mechanism, the dilation catheter positioned inside the lumen of the stent delivery catheter; wherein the lock mechanism of the stent delivery catheter includes a compressible tube positioned in the lumen of the handle and a button movable between a locked position for engaging a luminal surface of the compressible tube against the dilatation delivery catheter, and an unlocked position where the dilatation catheter is longitudinally movable relative to the stent delivery catheter. - View Dependent Claims (13, 14, 15, 16)
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17. A catheter comprising:
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a tubular shaft having a lumen extending along a longitudinal axis; a handle attached to the tubular shaft, the handle including a lumen extending therethrough aligned with the lumen of the tubular shaft; and a lock mechanism attached to the handle; wherein the lock mechanism comprises a compressible tube positioned in the lumen of the handle and a button, the button movable between a locked position for deflecting the compressible tube against a shaft positioned in a lumen of the compressible tube, and an unlocked position for disengaging the shaft positioned in the lumen of the compressible tube; the shaft extending along the longitudinal axis through the lumen of the tubular shaft, the lumen of the handle and the lumen of the compressible tube. - View Dependent Claims (18, 19)
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Specification