Dilatation and stent delivery system and related methods
AssigneeBoston Scientific Scimed, Inc.
InventorsF. Anthony Headly, Peter J. Shank, Emily E. Rusk, John J. Damarati, Michael Abi-Kheirs
Life of this patent
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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.
Claims19
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.
A system comprising:
- 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.
A catheter comprising:
- 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.
Dependencies are inferred from the claim text.