Tubular restraint release approaches for electrolytic implant delivery system
First Claim
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1. A power supply for an implant delivery system employing at least one electrolytically erodable element, the improvement comprising:
- adaptation of the power supply to provide an AC voltage profile with a peak-to-peak configuration of at least about 5V, and a DC voltage signal of at least about 1V.
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Abstract
Medical devices and methods for delivery or implantation of prostheses within hollow body organs and vessels or other luminal anatomy are disclosed. The subject technologies may be used in the treatment of atherosclerosis in stenting procedures or be used in variety of other procedures. The systems may employ a self expanding stent restrained by one or more members released by an electrolytically erodable latch. Such release means do not connect directly to the implant, though one or more portions may contact it.
149 Citations
39 Claims
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1. A power supply for an implant delivery system employing at least one electrolytically erodable element, the improvement comprising:
adaptation of the power supply to provide an AC voltage profile with a peak-to-peak configuration of at least about 5V, and a DC voltage signal of at least about 1V.
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2. A method of implant delivery, the method comprising:
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introducing an implant delivery system in an electrolytic fluid; and
applying electrical power to an electrolytically erodable member, the power AC voltage profile with a peak-to-peak configuration of at least about 5V, and a DC voltage signal of at least about 1V.
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3. A method of loading a self-expanding stent onto a delivery guide, the method comprising:
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holding the stent compressed to a reduced diameter configuration in at least one sleeve;
engaging the stent with the delivery guide; and
twisting the stent while in the sleeve. - View Dependent Claims (4, 5, 6, 7)
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8. A stent delivery system comprising:
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a delivery guide body having a distal portion and at least one elongate member including an electrolytically erodable section;
a stent comprising a near end, a far end and a structure extending therebetween, at least one of the near and far end of the stent held in contact with the elongate body;
wherein release of the erodable section initiates stent release. - View Dependent Claims (9, 10, 11, 12, 13, 14, 15, 16, 17, 18, 19, 20, 22, 23, 24, 25, 26, 27, 28, 29, 30, 31, 32, 33, 34, 35, 36, 37, 38)
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21. The system of 20, wherein each seat receives a mating portion, and wherein at least one seat is rotatable upon release of an electrolytically erodible section.
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39-62. -62. (canceled)
Specification