A method, with a processor of an information processing system, for monitoring at least one surgical object placed into a container and monitoring total net fluid volume loss of a surgical patient, the method comprising:
- securely supporting a container having at least one port opening, the container supported with a rod vertically aligned and moveably disposed in a channel of a vertically oriented hollow spine structure with a gap separating the length of the rod from the channel walls, the gap allowing the rod to move vertically without friction from contact with the channel walls, the rod transferring a weight force from the supported container to a weight force sensing device mechanically coupled to the rod;
- detecting placement of a surgical object into the container through one of the at least one port opening with the aid of gravity;
- identifying a type of the surgical object being placed in the container;
- contemporaneous with the detecting, receiving an information signal that indicates an incremental weight force of the container;
- determining, with the processor, an incremental weight of the contents of the container from the surgical object placed into the container through the one port opening;
- determining a fluid weight of the surgical object placed into the container through the one port opening by at least comparing the determined incremental weight of the contents of the container from the surgical object placed into the container to an expected “dry” (non-fluid-filled) weight value for the identified type of the surgical object;
- receiving an information signal indicative of fluid outflow amount and/or fluid intake amount associated with a surgical patient, the information signal comprising an indication of at least one of
- urine fluid outflow amount from a surgical patient;
- suction fluid outflow amount from a surgical cavity of the surgical patient;
- irrigation fluid intake amount into a surgical cavity of the surgical patient;
- and
- intravenous fluid intake amount into the surgical patient;
- and
- accumulating a total amount of estimated net fluid volume loss for a surgical patient, based at least on the determined fluid weight of the surgical object placed into the container being accumulated with a fluid outflow amount and/or a fluid intake amount determined from the received information signal indicative of a fluid outflow amount and/or a fluid intake amount associated with the surgical patient.