Patent ID: 9539414
Date: 2017-01-10
CPC Classifications: A61M

Claim:
1. Variable curvature catheter comprising a catheter body which extends from a proximal end to a distal end, the catheter body being fitted with a side wall which defines at least one cavity, the catheter body comprising, at said distal end, a variable curvature section which ends in a tip, wherein inside the cavity of the catheter body at least one traction wire is housed having an ascending branch, which extends from the proximal end towards the distal end so as to at least partially go through the variable curvature section at least as far as a first fork, the traction wire extends from the first fork at least partially going through the variable curvature section, coming out of the variable curvature section and rejoining the ascending branch at said first fork, so as to form a closed loop which at least partially goes through, the variable curvature section closing itself on the first fork, wherein the traction wire, after closing itself in a loop on the first fork, extends towards the proximal end along a descending branch, wherein the descending branch slides in relation to the ascending branch inside a constraint joined to the ascending branch at said first fork, said constraint permitting the relative sliding of the descending branch in relation to the ascending branch and ensuring the closure of the loop run through by the traction wire along the variable curvature section, the sliding of the descending branch modifying the curvature of the distal portion of the catheter.