Patent ID: 9173668
Filing Date: 2015-11-03
Classification: A61B,A61M

Abstract:
1. A system for removing objects from an interior lumen of an animal, the system comprising: a pull wire having a proximal end and a distal end; a distal body attached to the pull wire, the distal body comprising an interior, a proximal end, a distal end, a distal body length extending from the proximal end to the distal end, a proximal junction forming the proximal end of the distal body, a plurality of proximal strips, a basket comprised of a plurality of cells formed by a plurality of basket strips, and a distal junction comprising a proximal end, the proximal end of the distal junction forming a distal end of the basket, the basket comprising a basket interior, each proximal strip having a distal end attached to a cell and a proximal end, the proximal ends of the proximal strips converging at the proximal junction, the distal body having a relaxed state wherein the distal body has a first height and a first width, and a collapsed state wherein the distal body has a second height and a second width, the second height less than the first height, the second width less than the first width; and a catheter having an interior, a proximal end leading to the interior and a distal end leading to the interior, the catheter comprised of a biocompatible material and configured to envelope the distal body when the distal body is in the collapsed state, wherein, in the relaxed state, the basket comprises a first pair of distal crowns not attached to another cell of the basket and pointing generally in the distal direction, the distal crowns in the first pair of distal crowns located approximately the same distance from the proximal junction and between 150 degrees and 180 degrees relative to each other, and further wherein the basket further comprises a second pair of distal crowns not attached to another cell of the basket and pointing generally in the distal direction, the second pair of distal crowns located distally relative to the first pair of distal crowns, each of the distal crowns in the second pair of distal crowns located between 60 degrees and 90 degrees relative to a distal crown in the first pair of distal crowns, the distal crowns in the second pair of distal crowns located approximately the same distance from the proximal junction and further wherein each of the distal crowns in the first and second pair of distal crowns comprises an x-ray marker, the x-ray maker more visible under x-ray as compared to the basket strips when the distal body is located in a cranial blood vessel inside the body of a human and the x-ray is taken from outside the human's body and further wherein each distal crown in the first and second pair of distal crowns forms part of a cell, and further wherein at least some of the basket strips are located at the distal end of the basket, wherein each of the basket strips located at the distal end of the basket have a distal end, wherein each of the distal ends of the basket strips located at the distal end of the basket converge at the distal junction and further wherein the distal body, in the relaxed state, comprises a tapered region in which the distal body height and width decrease as the basket strips located at the distal end of the basket approach the distal junction.