Intracorporeal occlusive device and method

摘要

An intracorporeal space filling device and a delivery system and method for using the device is disclosed. The space filling device is preferably configured for percutaneous delivery from a peripheral conduit of a patient. The space filling device has an elongated tubular or interconnected bead structure which may have a transmutable material disposed within it. The transmutable material can be altered from a non-rigid state to a rigid state by the application of various types of energy or by other suitable means. The space filling device can be positioned by a delivery system and detached from the delivery system after desired positioning is achieved.

主权项

1. A detachment system for detaching an intracorporeal space-filling device from a delivery system, comprising:
(a) a delivery system; (b) an intracorporeal space filling device; and (c) a detachment mechanism that releases said intracorporeal device solely in response to a signal, the detachment mechanism comprising:
(i) a degradable polymer link securing the intracorporeal space-filling device to the delivery system;(ii) a source of direct current; and (iii) a heating element disposed proximal said intracorporeal device and in thermal contact with the degradable polymer link such that upon activation of said signal comprising direct current from said source, the heating element heats the degradable polymer link so as to degrade the degradable polymer link and release the intracorporeal space-filling device.