Patent ID: 9089336
Filing Date: 2015-07-28
Classification: A61B,C08L

Abstract:
1. A monopolar snare comprising: a first snare portion defined by an electrical conductor that has a first length, a first proximal end, and a first distal end, said first snare portion being devoid of electrical insulation between the first proximal end and the first distal end; a second snare portion defined by a wire having a second length, a second proximal end, and a second distal end, said second portion having an electrical insulation element covering said wire between said second distal end and said second proximal end, said second length being longer than the first length; a catheter having an open end; a manipulation wire guided within the catheter, said manipulation wire being either connected to the second proximal end of the second snare portion or being one piece with said second snare portion; a first stopper immovably affixed to the catheter inside thereof and having a first opening therethrough; a second stopper, having an outer diameter larger than a first diameter of the first opening, said second stopper being configured to slide within the catheter and being proximal to the first stopper, the second stopper having a second opening therethrough, said second opening having a second diameter, said manipulation wire passing through the second opening, a third stopper having an outer dimension and immovably affixed to said manipulation wire between the second proximal end and the second stopper, wherein said outer dimension is smaller than the first diameter to effectuate passing of the third stopper through said first opening in response to the second proximal end being pulled by the manipulation wire through the catheter away from the open end; wherein said outer dimension is larger than the second diameter dimension to prevent the third stopper from passing through said second opening in response to the second proximal end being pulled by the manipulation wire through the catheter away from the open end; and wherein the first and second distal ends of the first and second snare portions are affixed to one another to form a distal connection portion of said snare.