Patent ID: 6063057
Filing Date: 2000-05-16
Classification: A61M

Abstract:
An inflation/deflation syringe device for use with a balloon catheter, comprising:(a) a cylinder having a proximal end, a distal end and a fluid conduit proximate the distal end of the cylinder adapted for communication with a balloon catheter;(b) a shaft received within the proximal end of the cylinder, the shaft having a proximal end and a distal end;(c) a piston disposed within the cylinder and coupled to the distal end of the shaft, the piston being movable in one direction during inflation and in a second direction during deflation of the balloon catheter;(d) a locking mechanism for engaging the shaft within the cylinder to affect incremental axial movement of the piston within the cylinder by rotation of the shaft to enable controlled pressurization or depressurization of medium contained within the cylinder;(e) a slip clutch coupled to the shaft for enabling the transmission of torque to the shaft when the pressure of the medium within the cylinder is at or below a maximum allowable pressure and discontinuing the transmission of torque to the shaft when the pressure of the medium within the cylinder exceeds a maximum allowable pressure.