Implantable occluder or filter

摘要

An occlusion device (10) includes a cannula (24), a dilator tip (20) fixed to the cannula and a frame member formed of an occlusion member (28) and a sleeve (30). The occlusion member (28) is covered with occlusion material (26). The cannula (24) is in the form of a tube having a lumen (25) passing therethrough. The dilator tip (20) also has a lumen therethrough and a valve (32). The arrangement is such that the occluder (10) can be delivered by an over the wire method using a guide wire, whereupon the cannula and dilator tip remain in the patient as part of the occluder assembly (10).

主权项

1. An implantable medical device for implanting into a vessel, the implantable medical device including:
an expandable frame member for at least partially obstructing a vessel, the expandable frame member including a central sleeve having a cylindrical section; a cannula element including a first lumen, said cannula element being directly coupled to the cylindrical section, the cannula element having a proximal end and extending to the distal end such that the cannula element has a uniform inner diameter from the proximal end to the distal end; a dilator tip including a second lumen, said dilator tip being located at one of the proximal end and distal end of the cannula element, the cannula element being disposed within the dilator tip; wherein one of the cannula element and the dilator tip is provided with a seal for sealing one of the first lumen and the second lumen.