26-09-2013 дата публикации
Номер: US20130253550A1
The invention is an implantable magnetic anastomosis device having an exoskeleton that directs self-assembly. The design allows the device to be delivered in a linear configuration using a minimally-invasive technique, such as endoscopy or laparoscopy, whereupon the device self-assembles into, e.g., a polygon. A coupled set of polygons define a circumscribed tissue that can be perforated, or the tissue can be allowed to naturally necrose and perforate. The device can be used to create anastomoses in a variety of tissues, such as tissues found in the gastrointestinal, renal/urinary, and reproductive tracts. New procedures for using anastomoses, e.g., surgical bypass are also disclosed. 1. An implantable device comprising a plurality of magnetic segments coupled together with an exoskeleton that directs the magnetic segments to self-assemble into a geometric shape.2. The implantable device of claim 1 , wherein the geometric shape is angular claim 1 , polygonal claim 1 , or spiral.3. The implantable device of claim 2 , wherein the device comprises four or more magnetic segments and the device self-assembles into a polygon.4. The implantable device of claim 3 , wherein the polygon is a square claim 3 , a hexagon claim 3 , or an octagon.5. The implantable device of claim 3 , wherein a magnetic pole of each segment is normal to the face of the polygon.6. The implantable device of claim 3 , wherein the distance across the polygon claim 3 , measured through the center of the polygon claim 3 , is 5 mm or greater.7. The implantable device of claim 3 , wherein the distance across the polygon claim 3 , measured through the center of the polygon claim 3 , is 5 cm or less.8. The implantable device of claim 1 , wherein the exoskeleton comprises a material that returns to a shape after it is deformed from the shape.9. The implantable device of claim 8 , wherein the exoskeleton comprises a shape metal alloy.10. The implantable device of claim 9 , wherein the shape metal alloy is ...
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