Patent ID: 6183494
Filing Date: 2001-02-06
Classification: A61B,A61M

Abstract:
A microcommissurotomy device with levers (4) comprising:a proximal end socket (5) affixed rigidly to the distal end of a catheter (1),a member (11) axially traversing the proximal end socket and terminating at the distal end (6) of a retractor, andtwo articulated parallelograms (7) arranged symmetrically in relation to the member (11) of the retractor, each parallelogram being constituted of one active arm (20) parallel to the axis of the retractor and two parallel levers (21, 22) articulated at one end (17, 18) on said arm, the opening of the retractor being secured by manual control by movement of the distal end (6) of the retractor in relation to its proximal end socket (5) to displace the active arms (20) parallel to the axis of the retractor, the retractor in closed position having a radial bulk or extension essentially equal to that of the catheter (1),wherein the levers (21, 22) are articulated at their opposite end (15, 16) on the proximal end socket (5) and in that each parallelogram (7) is connected to the distal end (6) of the retractor by a small articulated rod (8, 9).