Mechanically Expandable Delivery and Dilation Systems
First Claim
1. A stent delivery system comprising:
- an elongate shaft including a proximal portion, a distal portion, a lumen extending at least partially therethrough, and a stent receiving portion on the distal portion of the shaft;
a stent positioned at the stent receiving portion of the elongate shaft, the stent having a constrained configuration and an expanded configuration;
a proximal constraining member releasably connected to a proximal portion of the stent and having a first position and a second position;
a distal constraining member releasably connected to a distal portion of the stent and having a first position and a second position;
the proximal constraining member and the distal constraining member cooperatively apply a longitudinal tensile force to at least a portion of the stent in the constrained configuration with the proximal and distal constraining members each in the first position.
3 Assignments
0 Petitions
Accused Products
Abstract
A stent delivery system, a dilator system and a method for implanting a stent are provided. The stent delivery system includes an elongate shaft including a proximal portion, a distal portion, a lumen extending at least partially therethrough, and a stent receiving portion on the distal portion of the shaft. The stent delivery system also includes a stent positioned at the stent receiving portion of the elongate shaft, the stent having a constrained configuration and an expanded configuration. A proximal constraining member and a distal constraining member releasably connected to the stent and having a first position and a second position are also included. The proximal constraining member and the distal constraining member cooperatively apply longitudinal tensile force to at least a portion of the stent with the proximal and distal constraining members each in the first position.
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Citations
22 Claims
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1. A stent delivery system comprising:
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an elongate shaft including a proximal portion, a distal portion, a lumen extending at least partially therethrough, and a stent receiving portion on the distal portion of the shaft; a stent positioned at the stent receiving portion of the elongate shaft, the stent having a constrained configuration and an expanded configuration; a proximal constraining member releasably connected to a proximal portion of the stent and having a first position and a second position; a distal constraining member releasably connected to a distal portion of the stent and having a first position and a second position;
the proximal constraining member and the distal constraining member cooperatively apply a longitudinal tensile force to at least a portion of the stent in the constrained configuration with the proximal and distal constraining members each in the first position. - View Dependent Claims (2, 3, 4, 5, 6, 7, 8, 9, 10, 11)
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12. A method of implanting a stent in a patient'"'"'s lumen, the method comprising:
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inserting a distal portion of a stent delivery system into the lumen of a patient, the stent delivery system comprising; an elongate shaft including a proximal portion, a distal portion, a lumen extending at least partially therethrough, and a stent receiving portion on the distal portion of the shaft; a stent positioned at the stent receiving portion of the elongate shaft, the stent having a constrained configuration and an expanded configuration; a proximal constraining member releasably connected to the stent and having a first position and a second position; a distal constraining member releasably connected to the stent and having a first position and a second position; holding the stent in the constrained configuration with longitudinal tensile force applied to the stent by the proximal and distal constraining members each in the first position and cooperatively tensioning the stent for delivery of the stent to the implant site; positioning the stent at the implant site; expanding the stent to the expanded configuration by moving the proximal and distal constraining members each to the second position and releasing longitudinal force on the stent. - View Dependent Claims (13, 14, 15, 16, 17, 18)
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19. A system comprising:
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an inner elongate shaft including a proximal portion, a distal portion and a lumen extending at least partially therethrough; an outer elongate shaft including a proximal portion, a distal portion and a lumen extending at least partially therethrough, the inner elongate shaft coaxially extending at least partially within the lumen of the outer elongate shaft, the inner and outer elongate shafts movably positionable relative to each other; an expandable member having a first end portion and a second end portion and having a constrained configuration and an expanded configuration, the first end portion operably connected to one of the inner and the outer elongate shaft and the second end portion operably connected to the other of the inner and the outer elongate shaft; wherein movement of the inner and outer elongate shafts relative to each other in a first direction applies opposing longitudinal force to at least a portion of the expandable member and wherein movement of the inner and outer elongate shafts relative to each other in a second direction releases the longitudinal force on the at least a portion of the expandable member. - View Dependent Claims (20, 21, 22)
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Specification