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US 6,042,588 AGranted
Stent delivery system
AssigneeSciMed Life Systems, Inc.
InventorsJoel R. Munsinger, Jon St. Germain
Life of this patent
Estimating the term…
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.
Claims24
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.
4 more elements
A medical catheter comprising:
- 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.
4 more elements
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 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.
4 more elements
Dependencies are inferred from the claim text.