Integrated medical waste management system and operation

A method to treat medical waste, comprising steps of:

• a. providing a medical waste treatment system comprising:
• i. a main treatment unit (100), said main treatment unit comprising:
• 1. a waste receiver cover (110);
• and
• 2. a waste shredding unit (120), said waste shredding unit comprising a shredding bin (121) and at least two rotating shredding blades (124);
• ii. a main liquid/chemical management unit (600) which comprises:
• 1. a water/disinfectant mixing unit (604, 660), and
• 2. a first disinfectant delivery unit (605) interconnected to said main treatment unit (100);
• iii. a separator unit (200) which comprises:
• 1. a separator arm (202, 1202) comprising a long screw (201), a tray (205) and a mechanical squeezer (1205) at the distal end of said long screw (201), said tray comprising a plurality of orifices characterized by shape and diameter SD2, said shape and diameter SD2 configured to allow the passage of liquids and block passage of solids of a predefined particle shape or diameter;
• and
• 2. an output chute (206);
• and
• iv. a plurality of motor units (300) which comprises:
• 1. a shredding motor unit (301) operative interconnected to said at least two rotating shredding blades (124);
• 2. a mixer motor unit (303) operative interconnected to said mixing unit (132);
• and
• 3. a separator unit motor;
• said first delivery unit (605) comprises a plurality of nozzles through which said disinfectant flows, said first delivery unit (605) being below said waste shredding unit (120);
• at least one of said at least two rotating shredding blades is rotatable at different velocity from at least one other of said at least two rotating shredding blades;
• wherein said main treatment unit (100) further comprises a compression unit (122) operatively interconnected to a compressing motor unit (302), said compression unit configured to push said medical waste into said shredder bin (121) towards said at least two shredding blades (124);
• said shredding bin has convergently shaped side walls configured for conducting a flow of said medical waste onto said at least two shredding blades (124);
• said compression unit comprises at least two shafts disposed at edges of said shredding bin (121) rotatable by said compressing motor unit (122);
• said at least two shafts each are provided with a comb secured thereto and formed by a plurality of coplanar arms being arranged in parallel to each other;
• said at least two shafts are reciprocally rotatable such that said coplanar arms periodically move up and down;
• said at least two shafts are configured to enable said medical waste to transfer to said at least two shredding blades (124) when said medical waste is pressed by said at least two combs;
• b. manually pressing a start button;
• c. disinfecting said waste receiver cover and said waste shredding unit;
• d. manually opening said waste receiver cover (110);
• e. manually placing waste in said waste shredding unit (120);
• f. manually closing said waste receiver cover (120);
• g. automatically performing a shredding and disinfecting protocol, comprising steps of:
• i. concomitantly activating the disinfectant/water mixing unit of lower sprayer nozzle (813) and the rotating shredding blades (815);
• ii. activating the compression unit;
• iii. assessing if a minimum quantity of disinfectant has been provided (819);
• iv. activating a mixer in the mixing unit (821);
• v. quantifying the amount of shredded waste coming out the shredder and providing sufficient disinfectant according to the predetermined ratio of shredded waste/disinfectant (822);
• vi. checking if all the disinfectant required has been provided (823);
• vii. checking if the mixing bin is at optimal capacity (825);
• viii. if yes, stopping said rotating shredding blades;
• ix. activating the mixer for a predetermined period of time (827);
• x. opening the exit valve of the waste management system (828) and activating the separation arm;
• xi. activating the centrifuge at the end of the separation arm for a predetermined period of time;
• xii. checking if the mixing bin is empty (830);
• xiii. continuing operation of the separation arm for a predetermined period of time (832) to allow a remainder of said waste to exit the separation arm;
• and
• xiv. stopping the separation arm (833).