Flexible tubing occlusion assembly

An occlusion assembly for occluding a pair of collapsible tubes of a medical infusion device, comprising:

• a first occluding member constructed and positioned to controllably occlude or release occlusion of a first tube of the pair of collapsible tubes, and a second occluding member constructed and positioned to controllably occlude or release occlusion of a second tube of the pair of collapsible tubes;
• the first occluding member and the second occluding member being positioned next to each other and between the first and the second tubes such that a space is defined between the first occluding member and the second occluding member;
• a spreader positioned within the space and configured to slide along a side of each occluding member from a first position to a second position, wherein sliding from the first position to the second position causes the spreader to force at least a portion of the first and the second occluding members to move apart from each other and force a tube-contacting portion of each of the first and the second occluding members against the respective first and second tube to occlude the first and the second tubes;
• an automatic actuator operatively coupled to the spreader to slide the spreader to cause the first and the second occluding members to move from the occluding position to the non-occluding position;
• and
• an override mechanism operatively coupled to the spreader to slide the spreader to cause the first and the second occluding members to move from an occluding position to a non-occluding position upon manual operation of the override mechanism by a user.