APPARATUS FOR DEPLOYMENT OF MICRO-COIL USING A CATHETER

摘要

The apparatus for deployment of a therapeutic device such as a micro-coil detachably mounts the therapeutic device to a distal portion of a pusher member. In one embodiment, the therapeutic device is detachably mounted to the distal portion of the pusher member by a tubular collar that can be heated by a heater such as an electrical resistance coil to expand the collar and release and deploy the therapeutic device. The apparatus for deployment of a therapeutic device such as a micro-coil may also provide for a pusher member and a connector fiber for securing the therapeutic device to the pusher member. The connector fiber passes through a heater within the distal portion of the pusher member, for heating and breaking the connector fiber to release the therapeutic device when a desired placement of the therapeutic device within the vasculature is achieved.

主权项

1. An apparatus for release and deployment of a therapeutic device within the vasculature of a patient, comprising:
an elongated, flexible pusher member having an interior lumen and a distal portion; a tubular collar detachably mounting a therapeutic device to the pusher member for placement of the therapeutic device within the vasculature, the tubular collar being configured to release the therapeutic device when heated; and an electrical resistance heater coil disposed in the tubular collar of the pusher member for heating the tubular collar to cause the tubular collar to release the therapeutic device.