Sliding Split-Sleeve Implant Compressor
First Claim
1. A system for loading a self-expanding stent into an introducer having an outer tube defining a lumen, the system comprising:
- a compressor having a stent delivery end, a stent receiving end, and a passage about a longitudinal axis connecting the stent delivery end and the stent receiving end, the passage comprising a funnel portion proximate the stent receiving end and an introducer opening proximate the stent delivery end, the funnel portion at the stent receiving end being sized to receive an un-compressed stent, the introducer opening shaped and sized to receive the outer tube of said introducer; and
a split sleeve device comprising a plurality of flexible sleeves each having a first end and a second end, and a mounting device situated adjacent the stent delivery end of the compressor defining a hole about the longitudinal axis sized to surround the outer tube of the introducer, the first end of each sleeve being coupled to the mounting device, the second end of each sleeve extending through the compressor passage at least to the stent receiving end and being flared outward to surround the un-compressed stent;
the mounting device with the first end of each sleeve being movable away from the compressor, the second end of each sleeve and the surrounded stent being drawn through the funnel portion to collapse the stent to a compressed configuration, the compressed stent being urged into the lumen of said introducer by the movement of each sleeve relative to the compressor and introducer.
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0 Petitions
Accused Products
Abstract
A system and method for loading an endoprosthesis, such as a stent or valve, into an introducer is provided that permits interventionalists to load the endoprosthesis easily at the bedside. The system can include a compressor for compressing the endoprosthesis to a cross-sectional area less than the cross-sectional area of the introducer lumen. The compressor has a funnel portion at one end where the un-compressed endoprosthesis can be introduced and another end where the introducer and sleeves of a split sleeve device are inserted. The sleeves conform to the compressor passage and surround the endoprosthesis to collapse the endoprosthesis. The split sleeve device also includes a mounting device coupled to the sleeves. The endoprosthesis is compressed and loaded into the introducer by the relative movement of the mounting device and the compressor, where the endoprosthesis remains generally stationary while being compressed and loaded in order to avoid potentially compromising the endoprosthesis.
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Citations
20 Claims
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1. A system for loading a self-expanding stent into an introducer having an outer tube defining a lumen, the system comprising:
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a compressor having a stent delivery end, a stent receiving end, and a passage about a longitudinal axis connecting the stent delivery end and the stent receiving end, the passage comprising a funnel portion proximate the stent receiving end and an introducer opening proximate the stent delivery end, the funnel portion at the stent receiving end being sized to receive an un-compressed stent, the introducer opening shaped and sized to receive the outer tube of said introducer; and a split sleeve device comprising a plurality of flexible sleeves each having a first end and a second end, and a mounting device situated adjacent the stent delivery end of the compressor defining a hole about the longitudinal axis sized to surround the outer tube of the introducer, the first end of each sleeve being coupled to the mounting device, the second end of each sleeve extending through the compressor passage at least to the stent receiving end and being flared outward to surround the un-compressed stent; the mounting device with the first end of each sleeve being movable away from the compressor, the second end of each sleeve and the surrounded stent being drawn through the funnel portion to collapse the stent to a compressed configuration, the compressed stent being urged into the lumen of said introducer by the movement of each sleeve relative to the compressor and introducer. - View Dependent Claims (2, 3, 4, 5, 6, 7, 8, 9, 10, 11, 12)
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13. A system for loading an endoprosthetic valve, being movable between an expanded configuration and a compressed configuration, into an introducer having an outer tube defining a lumen, the valve including a self expanding stent and at least one valve leaflet of remodelable material, the device comprising:
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a compressor having a stent delivery end, a stent receiving end, and a passage about a longitudinal axis connecting the stent delivery end and the stent receiving end, the passage comprising a funnel portion proximate the stent receiving end and an introducer opening proximate the stent delivery end, the funnel portion at the stent receiving end being sized to receive the valve in the expanded configuration, the introducer opening shaped and sized to receive the outer tube of said introducer; a split sleeve device comprising a first and a second discrete layer of flexible sleeves, the second discrete layer disposed radially inward with respect to the first discrete layer, each sleeve having a body of a given width including a first end and a second end and being separated with respect to the adjacent sleeve of the same discrete layer by a longitudinal gap, the sleeves of the first discrete layer being overlapped by the sleeves of the second discrete layer with each discrete layer covering the longitudinal gap of the other discrete layer, and a mounting device situated adjacent the stent delivery end of the compressor defining a hole about the longitudinal axis sized to surround the outer tube of the introducer and to receive each sleeve therethrough, the first end of each sleeve being coupled to the mounting device, the second end of each sleeve extending through the compressor passage at least to the stent receiving end, the second end of each sleeve being flared outward to surround the valve in the expanded configuration; and the compressor being movable relative to the mounting device with the first end of each sleeve, the second end of each sleeve and the surrounded valve being drawn through the funnel portion to collapse the valve to the compressed configuration, the compressed valve being urged into the lumen of said introducer by the movement of each sleeve relative to the compressor and introducer and the urging of the inserter. - View Dependent Claims (14, 15, 16, 17, 18)
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19. A method of loading a tubular medical device into an introducer, the method comprising the steps of:
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(a) providing a tubular medical device, an introducer having an outer tube defining a lumen, and a sliding split-sleeve valve loader system comprising a compressor comprising a stent delivery end, a stent receiving end, and a passage about a longitudinal axis connecting the stent delivery end and the stent receiving end, the passage comprising a funnel portion and an introducer opening, and a split sleeve device comprising a plurality of flexible sleeves each having a first end and a second end and a mounting device defining a hole about the longitudinal axis sized to receive said introducer and each sleeve therethrough, where the first end of each sleeve is coupled to the mounting device and the second end is flared radially outward; (b) inserting each sleeve through the passage of the compressor, wherein the second end of each sleeve conforms to the funnel portion; (c) inserting the introducer into the introducer opening of the compressor; (d) inserting an un-compressed tubular medical device into the funnel portion at the stent receiving end of the compressor; and (e) translating the compressor away from the mounting device to urge each sleeve to collapse and compress the tubular medical device into a compressed configuration, and to urge the compressed valve into the lumen of the introducer. - View Dependent Claims (20)
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Specification