Method of preparation of batch of physiologic solution

A method for preparing a batch of a physiologic solution for use during a surgical procedure from batch quantities of first and second chemical formulations stored in respective first and second batch quantity chemical vessels, comprising the steps of:

• opening said first batch quantity vessel and placing said first chemical formulation in a solution preparation tank;
• removing said first chemical formulation from said solution preparation tank;
• opening said second batch quantity vessel, placing said second chemical formulation into said solution preparation tank and diluting said second chemical formulation with water, while maintaining said first chemical formulation sequestered from said second chemical formulation;
• and
• mixing said dilute solution of said second chemical formulation with said first chemical formulation to form a physiologic solution and storing the said physiologic solution in said dialysate solution tank.

A method for preparation of a batch of dialysate solution from batch quantities of liquid acid and bicarbonate chemical formulations stored in respective first and second batch quantity chemical vessels, comprising the steps of:

• opening said first batch quantity vessel and placing said liquid acid chemical formulation in a solution preparation tank;
• maintaining said bicarbonate chemical formulation separate from said solution preparation tank;
• removing said liquid acid chemical formulation from said solution preparation tank and storing said solution in an ultrafiltration tank;
• diluting said liquid acid formulation with water to form a dilute acid solution in said ultrafiltration tank;
• while storing said dilute acid solution in said ultrafiltration tank, opening said second batch quantity vessel, placing said bicarbonate chemical formulation into said solution preparation tank and diluting said bicarbonate chemical formulation with water to form a dilute bicarbonate solution therein;
• and
• mixing said dilute bicarbonate and dilute acid solutions together within said dialysate preparation tank to form a physiologic solution and storing said physiologic solution in said dialysate solution tank.