Delivery device distal sheath connector
First Claim
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1. A connector for coupling a distal sheath and an inner shaft of a medical delivery device, the connector comprising:
- a wedge including a cylindrical body having a first outer diameter and a cone portion having a series of second outer diameters, the first outer diameter being less than or equal to the series of second outer diameters, the wedge further defining a lumen for accepting the inner shaft of the medical delivery device, at least a portion of the wedge having an outer diameter sized to be received in the distal sheath; and
a cylindrical ring defining an outwardly tapered lumen and being sized to be disposed over the distal sheath and at least the portion of the cone portion of the wedge,wherein engagement of the cylindrical ring with the wedge sandwiches the distal sheath between at least the portion of the wedge and the cylindrical ring to couple the distal sheath and the inner shaft.
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Abstract
A connector for coupling a distal sheath to an inner shaft of a medical delivery device includes a wedge defining a lumen for accepting the inner shaft of the medical delivery device and a cylindrical ring sized to mate with the wedge. The wedge may be welded or otherwise fixed to the inner shaft. The wedge and the ring are configured to be pressed together and lock a portion of the distal sheath therebetween.
49 Citations
19 Claims
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1. A connector for coupling a distal sheath and an inner shaft of a medical delivery device, the connector comprising:
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a wedge including a cylindrical body having a first outer diameter and a cone portion having a series of second outer diameters, the first outer diameter being less than or equal to the series of second outer diameters, the wedge further defining a lumen for accepting the inner shaft of the medical delivery device, at least a portion of the wedge having an outer diameter sized to be received in the distal sheath; and a cylindrical ring defining an outwardly tapered lumen and being sized to be disposed over the distal sheath and at least the portion of the cone portion of the wedge, wherein engagement of the cylindrical ring with the wedge sandwiches the distal sheath between at least the portion of the wedge and the cylindrical ring to couple the distal sheath and the inner shaft. - View Dependent Claims (2, 3, 4, 5, 6, 7, 8, 9)
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10. A method of coupling a distal sheath having an inwardly tapered portion and an inner shaft of a delivery device, the method comprising:
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providing a wedge including a cylindrical body having a first outer diameter and a cone portion having a series of second increasing outer diameters, the first outer diameter being less than or equal to the series of increasing second outer diameters and at least a portion of the wedge having an outer diameter sized to be received in the distal sheath, the wedge further defining a lumen for accepting the inner shaft of the medical delivery device; providing a cylindrical ring defining an outwardly tapered lumen and being sized for placement over the distal sheath and at least the portion of the wedge; positioning a portion of the distal sheath between the wedge and the cylindrical ring; and coupling the wedge to the inner shaft and the cylindrical ring so as to sandwich the portion of the distal sheath between at least the portion of the wedge and the cylindrical ring. - View Dependent Claims (11, 12, 13, 14, 15, 16, 17, 18, 19)
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Specification