Material dispenser with a control valve

A syringe for use with a patient in a biological fluid treatment system, the patient having a patient identifier, the syringe comprising:

• a syringe inlet;
• an inlet valve for controlling the flow biological fluid via the inlet;
• a syringe chamber for receiving the treated biological fluid;
• a syringe outlet in communication with the chamber via a passage;
• a syringe outlet valve to control the discharge of the treated biological fluid via the syringe outlet;
• a control valve adjacent to the inlet valve operable between a first position to control the flow of material from the inlet to the syringe chamber, and a second position to control the flow of material from the syringe chamber to the outlet;
• a releasable lock to operate the syringe outlet valve between a closed state, an open state and a permanently closed state;
• an incremental counter for recording temporal data corresponding to biological fluid treatment events, treated biological fluid events and delivery events;
• a unique identifier associated with the syringe, the unique identifier correlatable to the patient identifier;
• a release signal generator for issuing a release signal to operate the releasable lock following acceptability of the temporal data and the correlation of the patient identifier and the unique identifier;
• the releasable lock including:
• a pivoted pawl member;
• interconnected slots corresponding to the closed state, the open state and the permanently closed state;
• a first resilient member having a flange restricted to travel within the interconnected slots, wherein the first resilient member is spring made from a fuse material which temporarily changes consistency under the presence of the release signal, the position of flange within the interconnected slots dictating the state of the outlet valve.

A material dispensing device for use in a biological fluid treatment system, comprising:

• an inlet portion with an inlet opening at one end;
• an outlet portion with an outlet opening;
• a releasable lock to operate the syringe outlet portion between a closed state, an open state and a permanently closed state;
• a chamber for receiving the biological fluid from the inlet portion;
• a biological fluid transfer portion including a cavity in fluid communication with the inlet portion, the outlet portion, and the chamber, the cavity having:
• an inlet valve for controlling the flow of biological fluid via the inlet opening;
• a control valve adjacent to the inlet valve operable between a first position to permit the flow of biological fluid from the inlet portion to the chamber while preventing flow of biological fluid between the chamber and the outlet portion, and a second position to permit the flow of biological fluid from the chamber and the outlet portion in open state, while preventing flow of biological fluid between the chamber and the inlet portion;
• whereby the control valve is lodged within the cavity and precluded from returning to the first position from the second position, and the releasable lock places the syringe outlet portion into a permanently closed state.