Blood pressure monitoring with zero function system and method

A pressure monitoring system for use with at least one or more patient care monitors (PCM), the system comprising:

• a medical device in communication with a pressure monitor capable of obtaining an atmospheric pressure;
• a device sensor connected to the medical device and configured for insertion into a patient, wherein the device sensor measures a pressure within the patient;
• at least one specific correction factor associated with the device sensor;
• wherein the medical device facilitates the pressure monitor producing a zero function by observing an atmospheric pressure as adjusted by the correction factor(s) to create an adjusted atmospheric pressure, said zero function resulting in the pressure monitor setting the adjusted atmospheric pressure to a zero value in the device sensor;
• a memory associated with the pressure sensor and storing the zero value and correction factor(s);
• wherein, upon disconnection of the medical device from the pressure monitor and connection of the medical device to a second pressure monitor, the medical device facilitates the second pressure monitor determining if there is a stored zero value in the memory, and if there is not one then facilitates the second pressure monitor producing the zero function to provide a new zero value to the device sensor and store the new zero value in the memory;
• and
• a zero switch in communication with the medical device and configured for activating the zero function by the first or second pressure monitor.