Stent deploying catheter system
AssigneeAdvanced Cardiovascular Systems, Inc.
InventorsJeong S. Lee, Florencia Lim
Life of this patent
Estimating the term…
Abstract
An intravascular catheter system for properly implanting a stent in a body lumen generally comprising a catheter having an elongated shaft with an inflatable balloon formed of compliant material and a stent mounted on the working length of the balloon. The balloon material is compliant within the working range of the balloon to provide substantial radial expansion. The wingless radially expansive balloon expands in a uniform manner, thereby producing uniform expansion and implantation of the stent.
Claims25
An intravascular catheter system for implanting a stent in a patient's body, comprising:
- a) a catheter having an elongated shaft with proximal and distal ends and an inflation lumen extending within at least a portion of a distal shaft section to a location spaced proximally from the distal end;
- b) an essentially wingless uninflated balloon formed of polymeric material, mounted on the distal section of the catheter shaft, with an interior chamber in fluid communication with the inflation lumen;
- and
- c) an expandable stent disposed about and mounted onto the essentially wingless uninflated balloon.
A method of implanting a stent within a patient's body, comprising:
- a) providing a catheter system, comprising:
- i) a catheter having an elongated shaft with proximal and distal ends and an inflation lumen extending within at least a distal shaft section to a location spaced proximally from the distal end;
- ii) an essentially wingless uninflated balloon formed of polymeric material, mounted on the distal section of the catheter shaft, with an interior chamber in fluid communication with the inflation lumen;
- and
- iii) an expandable stent disposed about and mounted onto the essentially wingless uninflated balloon;
- b) inserting the catheter system into the patient's body;
- and
- c) inflating the balloon to produce radial expansion of the balloon and the stent mounted thereon.
A catheter system for implanting a stent in a patient's body, comprising:
- a) a catheter having an elongated shaft with proximal and distal ends and an inflation lumen extending within at least a portion of a distal shaft section to a location spaced proximally from the distal end;
- b) an essentially wingless uninflated balloon formed of an elastomeric material selected from the group consisting of latex, silicone, polyurethane, ethylene alpha olefin polymer, flexible polyvinyl chloride, ethylene methylacrylate, ethylene ethylacrylate, styrene butadiene styrene, and ethylene propylene diene rubber, mounted on the distal section of the catheter shaft, with an interior chamber in fluid communication with the inflation lumen;
- and
- c) an expandable stent disposed about and mounted onto the essentially wingless uninflated balloon.
An intravascular catheter system for implanting a stent in a patient's vessel, comprising:
- a) a catheter having an elongated shaft with proximal and distal ends and an inflation lumen extending within at least a portion of a distal shaft section to a location spaced proximally from the distal end;
- b) a compliant, essentially wingless, uninflated balloon formed of polymeric material mounted on the distal section of the catheter shaft, having an interior chamber in fluid communication with the inflation lumen, and having a radial compliance of at least about 0.08 millimeters/atmospheres at inflation pressures of about 5 to about 15 atmospheres;
- and
- c) an expandable stent disposed about and mounted onto the compliant, essentially wingless, uninflated balloon, configured for radial expansion and implantation in the patient's vessel.
A catheter system for implanting a stent in a patient's body, comprising:
- a) a catheter having an elongated shaft with proximal and distal ends, a distal section, and an inflation lumen extending within at least a portion of the shaft;
- b) a wingless uninflated balloon, formed of polymeric material, on the distal section of the catheter shaft, with an interior chamber in fluid communication with the inflation lumen;
- and
- c) an expandable stent disposed about and mounted onto the wingless uninflated balloon.
Dependencies are inferred from the claim text.