Abstract: A cartridge fed infusion pump containing a plurality of linear peristaltic pumps. Each pump is powered by a direct current motor. The motor has a shaft which rotates to perform a pump cycle. A position encoder mounted on the shaft is used to determine when the shaft has reached the stop position in the pump cycle. A reverse pulse is used to quickly stop the motor shaft.

Abstract: An infustion pump fluid source cartridge having a pump interface portion and a fluid source portion. The top edge of the cartridge is bevelled in the fluid source portion to permit bending of the fluid source portion to securely position the pump interface portion against the pump without distorting the pump interface portion. A pump tube mount is provided for insertion into such cartridge. The pump tube mount includes a uniquely shaped front wall and a rear wall which extends downward in order to butt up against a ledge. Tabs extend from the rear wall in order to snap into an opening beneath the ledge. A compressible tube is mounted in the tube mount by providing a cylindrical fitting having an indentation. The tube may be held in the indentation by a collar surrounding the tube in alignment with the indentation.

Abstract: A combination catheter connector and clamp provided with an interlocking hook and post for locking two connector parts together. A manifold separates the lumens of a multilumen catheter into separate arms which can be closed or opened by a pushbutton clamp. A silicone block is used between the engagement portions of the connector parts.

Abstract: A pump housing which contains a plurality of linear peristaltic pumps and receives a fluid source cartridge. The cartridge is provided with retaining knobs for engaging retaining holes in the front end of the pump housing. A cartridge further contains a tab at its rear end for engaging a locking mechanism in the pump housing. The cartridge contains linear fluid conduits which align with the linear peristaltic pumps for pumping fluid from the fluid source pouches within the cartridge. Each pump is individually controlled by a programmable controller within the pump.

Abstract: An infusion pump is disclosed in which a canister of compressed gas is regulated to provide a continuous source of pressure to one or more compressible fluid sources. Valves on the outlets of the sources prevent fluid from escaping except when the valves are opened. The valves are opened by solenoids which are selectively activated to open the valves.

Abstract: A cartridge, a control system and an infusion pump provide an infusion system. The cartridge contains one or more flexible compartments and pressure roller for squeezing fluid from the compartments. When there is a plurality of fluid compartments in the cartridge, a multilumen connector is provided on the cartridge so that it may be connected to a single multilumen catheter. The control system monitors the volume of fluid which is expelled from the fluid filled compartments during the infusion process. Any errors in rate or volume are continually fed back to the infusion pump. Errors exceeding allowable limits cause adjustment to correct for the error in volume so that over a long duration information process desired dosage is infused at an accurately maintained infusion rate. The infusion pump is provided with a constant force spring connected to a sliding member.

Abstract: A subcutaneous catheter set is disclosed in which a multilumen catheter tube has a tissue cuff connected about its outer circumference. A lock adapter has a plurality of conduits in communication with the lumens of the multilumen catheter tube. A complementary lock adapter is connected to either another multilumen catheter tube, a plurality of single lumen lines, a plurality of injection tubes or may be plugged to act as a seal. The two lock adapters can be locked together so that the subcutaneous multilumen catheter may be connected directly to any of the items attached on the complementary lock adapter.

Abstract: A multiple needle holder and multiple channel subcutaneous infusion port are disclosed. The multiple needle holder carries a plurality of needles which are each in separate fluid communication with a lumen of a plurality of lumens in a multilumen catheter. The multiple infusion port includes a septum which overlies a plurality of isolated chambers. Each chamber is accessed by a tube which connects to a different lumen of a subcutaneous multilumen catheter. When the needles of said needle holder are inserted through the septum of said infusion port each of said needles is in communication with a different one of said isolated chambers.

Abstract: A method of sequential intravenous infusion of a plurality of fluid solutions is disclosed in which a spacer solution is administered alternately with the fluid solutions to prevent the fluid solutions from substantially mixing with one another.

Abstract: An infusion pump is disclosed in which a canister of compressed gas is regulated to provide a continuous source of pressure to one or more compressible fluid sources. Valves on the outlets of the sources prevent fluid from escaping except when the valves are opened. The valves are opened by solenoids which are selectively activated to open the valves.

Abstract: A valve is disclosed which includes a hollow cylindrical housing having a plurality of input sites and a rotary core member having an output pasageway. The input sites which are not in communication with the output passageway are sealed. The valve may also include a primary input site connected to a conduit surrounding the rotary core member of the valve. The valve is demountable on a control apparatus for performing a method of administering a plurality of fluids intravenously to a patient. According to the method of the present invention, a neutral solution is provided in between each of the other different fluid solutions being infused into the patient. The control apparatus of the present invention may be programmed to automatically provide the patient with a prescribed amount of each fluid solution through the catheter tube.

Abstract: A subcutaneously tunneled catheter set is disclosed in which a first multilumen catheter is connected to a second reinforced multilumen catheter. A tissue cuff is located near the connection between the two catheter tubes. The disclosure includes a multilumen connector made from a housing that provides conduits between two sets of ports which connect to catheter tubes at either end. The tissue cuff is connected around the outside of the multilumen connector. A multilumen locking connector is provided so that the subcutaneously tunneled multilumen catheter set may be connected directly to an exterior multilumen catheter tube.