Stent delivery system
First Claim
Patent Images
1. A medical catheter comprising:
- a proximal catheter shaft forming a lumen having a proximal end and a distal end, the proximal shaft having at least two inner shafts disposed within the proximal shaft, the at least two inner shafts each forming a separate and unshared lumen relative to each other;
a distal catheter shaft being more flexible than the proximal catheter shaft, having a proximal end and a distal end, wherein the distal end of the proximal shaft is connected to the proximal end of the distal shaft;
a manifold connected to the proximal end of the proximal shaft;
a stent loaded on the distal end of the catheter, the stent having an expanded state and a collapsed state;
a stent retaining means situated at the distal end of the catheter retaining the stent in its collapsed state; and
a retracting means communicating with the retaining means and extending from the retaining means through one of the at least two shafts within the proximal shaft to the manifold.
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Accused Products
Abstract
A stent delivery catheter comprising a stiff proximal shaft, a manifold, a distal shaft, a pull back stent release assembly and a pull back wire and a guide wire, both extending through the catheter from the manifold to the distal end of the catheter. The proximal shaft encloses a pull back wire shaft and a guide wire shaft. The proximal shaft may be made of an extruded polymer having two lumens disposed therein to receive the separate wires, keeping them separate.
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Citations
24 Claims
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1. A medical catheter comprising:
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a proximal catheter shaft forming a lumen having a proximal end and a distal end, the proximal shaft having at least two inner shafts disposed within the proximal shaft, the at least two inner shafts each forming a separate and unshared lumen relative to each other; a distal catheter shaft being more flexible than the proximal catheter shaft, having a proximal end and a distal end, wherein the distal end of the proximal shaft is connected to the proximal end of the distal shaft; a manifold connected to the proximal end of the proximal shaft; a stent loaded on the distal end of the catheter, the stent having an expanded state and a collapsed state; a stent retaining means situated at the distal end of the catheter retaining the stent in its collapsed state; and a retracting means communicating with the retaining means and extending from the retaining means through one of the at least two shafts within the proximal shaft to the manifold. - View Dependent Claims (2, 3, 4, 5, 6, 7, 8, 9, 20, 21)
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10. A medical catheter comprising:
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a proximal catheter shaft having a proximal end and a distal end, the proximal shaft having at least two inner lumens disposed within the proximal shaft; a distal catheter shaft being more flexible than the proximal catheter shaft, having a proximal end and a distal end, wherein the distal end of the proximal shaft is connected to the proximal end of the distal shaft; a manifold connected to the proximal end of the proximal shaft; a stent loaded on the distal end of the catheter, the stent having an expanded state and a collapsed state; a stent retaining means situated at the distal end of the catheter retaining the stent in its collapsed state; and a retracting means communicating with the retaining means and extending from the retaining means through one of the at least two lumens within the proximal shaft to the manifold. - View Dependent Claims (11, 12, 13, 14, 15, 16, 17, 18, 19, 22, 23)
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24. A medical catheter comprising:
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a proximal catheter shaft forming a lumen having a proximal end and a distal end, the proximal shaft having at least two inner shafts disposed within the lumen of the proximal shaft, the at least two inner shafts each forming a distinct passageway within the lumen of the proximal shaft; a distal catheter shaft being more flexible than the proximal catheter shaft, having a proximal end and a distal end, wherein the distal end of the proximal shaft is connected to the proximal end of the distal shaft; a manifold connected to the proximal end of the proximal shaft; a stent loaded on the distal end of the catheter, the stent having an expanded state and a collapsed state; a stent retaining means situated at the distal end of the catheter retaining the stent in its collapsed state; and a retracting means communicating with the retaining means and extending from the retaining means through one of the at least two shafts within the proximal shaft to the manifold.
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Specification