Portable pump for use with IV tubing

A control circuit for an infusion pump, comprising:

• a motor operatively arranged to drive said pump;
• an N-FET transistor having a gate, drain and source, said N-FET transistor arranged in series with said motor;
• a P-FET transistor having a gate, drain and source, said P-FET transistor arranged in series with said motor;
• and,
• a capacitor operatively arranged to store energy to drive said motor, said capacitor arranged in parallel with said motor, said capacitor having a first lead and a second lead, said first lead connected to a node connecting the drain of said P-FET transistor and a lead from said motor, and said second lead connected to the source of said N-FET transistor.

An apparatus for preventing the free flow of fluid in tubing installed in a pump comprising:

• a cabinet containing said pump;
• a door rotatably fixed to said cabinet;
• and,
• locking means for preventing rotation of said door, said means operatively arranged to be unlocked by a tubing occluder.

A method for pumping fluid through tubing with a first end and a second end comprising:

• occluding said tubing at a first location, said first location between said pump and said first end of said tubing;
• delivering said fluid into said tubing from a reservoir in flow communication with said second end of said tubing;
• occluding said tubing at a second location, said second location between said reservoir and said pump;
• unoccluding said tubing at said first location;
• and,
• depressing a longitudinal section of said tubing with a stop platen of said pump that is narrower than said tubing along a transverse axis of said tubing.

A method for installing tubing into an infusion comprising:

• occluding said tubing with an occluder with a first end and a second end, wherein said tubing is occluded when said tubing is proximate said first end;
• inserting said second end of said occluder into said infusion pump to unlock a door of said pump;
• installing said occluded tubing in said pump;
• and,
• locking said door.

A method for removing tubing from an infusion pump comprising:

• occluding said tubing with an occluder with a first end and a second end, wherein said tubing is occluded when said tubing is proximate said first end;
• inserting said second end of said occluder into said infusion pump to release said tubing from constraining means of said pump;
• and,
• removing said occluded tubing from said pump.