Stent Expanding device
First Claim
Patent Images
1. A stent expanding device for expanding the diameter of a stent comprising:
- an expansion mandrel having an internally threaded internal channel, a side and two open ends, and at least one longitudinal slot along the side; and
an expansion pin having a cylindrical body and an externally threaded tapered end configured for rotatably engaging the internal channel.
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Accused Products
Abstract
A stent expansion device includes an expanding mandrel having a side, a threaded internal channel, two open ends and a plurality of longitudinal slots along the side. An expansion pin is included, and has a cylindrical body with a threaded tapered portion. The device is configured to expand a stent by rotating or screwing the tapered portion of the expansion pin within the internally treaded mandrel. A method of expanding a stent in a controlled fashion using the stent expansion device is also described.
92 Citations
20 Claims
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1. A stent expanding device for expanding the diameter of a stent comprising:
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an expansion mandrel having an internally threaded internal channel, a side and two open ends, and at least one longitudinal slot along the side; and an expansion pin having a cylindrical body and an externally threaded tapered end configured for rotatably engaging the internal channel. - View Dependent Claims (2, 3, 4, 5, 6, 7, 8, 9)
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10. A stent expanding device for expanding a diameter of a stent comprising:
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an expansion mandrel having an internally threaded cavity, a side, two open ends, and a plurality of longitudinal slots along the side, the slots commencing at a keyhole in the side of the mandrel, and each consecutive slot terminating at opposite ends of the mandrel; an expansion pin having a cylindrical body and a threaded tapered end configured to rotatably engage the internally threaded cavity; an expansion crown having teeth and a bore, the teeth being configured to slide into the termini of the slots, the bore being configured to receive the cylindrical body of the expansion pin; and a rounding rod configured to be received into the cavity of the mandrel.
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11. A stent expanding device for expanding a stent into a tapered stent comprising:
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a mandrel having a closed end and an open end, a threaded tapered internal channel, and slots along a side of the tapered mandrel, the slots extending from the closed end of the mandrel and terminating at and continuous with the open end of the mandrel; and a tapered expansion pin having threads disposed on a tapered cylindrical body, wherein the tapered expansion pin is configured to insert into the open end of the mandrel and radially expand the mandrel as the expansion pin is rotated. - View Dependent Claims (12, 13, 14, 15)
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16. A method of using a stent expanding device comprising:
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sliding at least one stent onto an internally threaded mandrel to form a loaded mandrel; loading at least one externally threaded expansion pin into an internally threaded mandrel; and rotating a portion of the expansion pin inside the mandrel, whereby the at least one externally threaded expansion pin is advanced into the internally threaded mandrel and the mandrel radially expands to form an expanded stent. - View Dependent Claims (17, 18, 19, 20)
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Specification