A - Human Necessities – 61 – B
Patent
A - Human Necessities
61
B
A61B 17/08 (2006.01) A61B 17/00 (2006.01) A61M 25/00 (2006.01)
Patent
CA 2128338
The present invention provides a system and a method for closing septal defects and the like. The system includes a closure device (10) having a pair of occluding disks (20, 30) each disk being formed of membrane (22, 32) and an elastically deformable frame (24, 34) carried about the periphery of the membrane (22, 32). The frame (24, 34) which may be formed of a superelastic material is capable of being collapsed for passage through a catheter and elastically returning to predetermined shape for faulty holding the membrane. A central portion of the membrane (22, 32) of each disk (20, 30) is attached to a central portion of the other membrane to define a conjoint disk (40). The method of the invention involves collapsing the frames (24, 34) of the disk (20, 30) inserting the closure device (10) into a catheter and positioning the distal end of the catheter adjacent a septal defect. The disk (70) is then urged out of the distal end of the catheter to permit its frame (24) to elastically return to a predetermined shape, pulling the membrane (22) taut on one side of the defect. The second disk (30) is then similarly deployed on another side of the defect, automatically positioning the conjoint disk (40) within the defect to occlude it.
Borden Ladner Gervais Llp
Regents Of The University Of Minnesota
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