Patent ID: 8652146
Filing Date: 2014-02-18
Classification: A61B

Abstract:
1. A snare device, comprising: an elongate outer sheath having proximal and distal ends and having a first lumen disposed within the outer sheath between the proximal and distal ends of the outer sheath, the first lumen having a proximal opening near the proximal end of the outer sheath and a distal opening near the distal end of the outer sheath; an elongate shapeable shaft having a first end and a second end, the elongate shapeable shaft configured to be disposed within the first lumen of the outer sheath; a first expandable snare loop non-adjustably coupled to the first end of the shaft, the first snare loop configured to be delivered through the outer sheath during use; and a second expandable snare loop non-adjustably coupled to the second end of the shaft, the second snare loop configured to be delivered through the outer sheath during use, wherein the first snare loop has a maximum circumscribable area which is larger than a maximum circumscribable area of the second snare loop; wherein the elongate shapeable shaft is configured to retain at least 25% of its shape when it is: plastically deformed by a user to a shaped state, the plastic deformation occurring while the elongate shapeable shaft is outside the sheath, disposed within the first lumen of the outer sheath such that the outer sheath tends to deform the elongate shapeable shaft from the shaped state, and the elongate shapeable shaft is removed from the sheath.