METHOD OF MONITORING THE TEMPERATURE OF A STERILE DOCKING CUTTING MEANS

摘要

TITLE A Method of Monitoring the Temperature of a Sterile Docking Cutting Means A method is disclosed for monitoring the temperature of a resistor-heated cutting means used in a sterile docking apparatus for splicing two sterile thermoplastic tubes together. The method comprises (1) supplying a constant current to the resistor; (2) measuring the initial voltage of the resistor; (3) calculating, according to predetermined empirical relationship(s), the voltage, time or both required to achieve a desired cutting means temperature if the initial voltage is within a suitable range; (4) measuring repeatedly the voltage of the resistor and the time to determine whether (a) the voltage reaches the calculated voltage within a specified time frame or (b) the calculated time has been reached within a specified voltage range; and (5) spicing the tubes with the cutting means if the time frame or voltage range is met.