Endovascular embolic device detachment detection method
First Claim
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1. A method for detecting electrolytic separation of an occlusion device comprising the steps of:
- (a) providing a delivery member and an occlusion device coupled to the delivery member via a linking member;
(b) delivering the occlusion device to a desired site in a mammal via the delivery member;
(c) supplying DC power with a superposed AC signal to the linking member; and
(d) monitoring the superposed AC signal to detect a change in said signal.
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Abstract
This invention is a method for ensuring for endovascular occlusion through the formation of thrombi in arteries, veins, aneurysms, vascular malformations, and arteriovenous fistulas. In particular, it deals with a method to predictably determine the instant of electrolytic detachment of an embolic device which is introduced to and is intended to remain at the desired thrombus formation site. The invention further includes a method for delivering an embolic device and detecting its electrolytic separation.
283 Citations
21 Claims
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1. A method for detecting electrolytic separation of an occlusion device comprising the steps of:
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(a) providing a delivery member and an occlusion device coupled to the delivery member via a linking member; (b) delivering the occlusion device to a desired site in a mammal via the delivery member; (c) supplying DC power with a superposed AC signal to the linking member; and (d) monitoring the superposed AC signal to detect a change in said signal. - View Dependent Claims (2, 3, 4, 5, 6, 7, 8, 9, 10, 11, 12, 13, 14)
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15. A method for detecting electrolytic separation of an occlusion device comprising the steps of:
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(a) delivering an occlusion device, which is coupled to a delivery member via a linking member, to a desired site in a mammal via the delivery member; (b) forming a circuit path including the linking member and occlusion device; (c) supplying DC power with a superposed AC signal to said circuit path; and (d) monitoring the AC impedance of said circuit path to detect a change in said impedance. - View Dependent Claims (16, 17, 18)
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19. A method for detecting electrolytic separation of an occlusion device comprising the steps of:
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(a) delivering an occlusion device, which is coupled to a delivery member via a linking member, to a desired site in a mammal via the delivery member; (b) supplying DC power with a superposed AC signal to the linking member; and (c) monitoring the superposed AC signal to detect a change therein indicative of separation between the occlusion device and delivery member. - View Dependent Claims (20, 21)
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Specification