The present document discloses a medical pumping system (20) for moving a fluid through a tube, which may comprise a machine having a motor (24) and a drive mechanism (25), and a pump head configured to be removably coupled to the drive mechanism of the machine. The machine may comprise an inductive sensor (26) and at least one processor (28) connected to the motor and the inductive sensor. The pump head may comprise a metallic element (32) intended to cooperate with the inductive sensor of the machine.

The present document discloses a medical pumping system (20) for moving a fluid through a tube, which may comprise a machine having a motor (24) and a drive mechanism (25), and a pump head configured to be removably coupled to the drive mechanism of the machine. The machine may comprise an inductive sensor (26) and at least one processor (28) connected to the motor and the inductive sensor. The pump head may comprise a metallic element (32) intended to cooperate with the inductive sensor of the machine.

A roller pump includes a roller pump rotor including a first roller arm having a first roller rotatably coupled thereto and a second roller arm having a second roller rotatably coupled thereto, a raceway disposed around the rotor, a pump motor configured to rotate the rotor relative to the raceway, and an electronic actuator disposed on the rotor, wherein the actuator is configured to change a radial position of the first and second rollers. The actuator may be couplable to the motor such that the motor is capable of rotating the rotor and changing the radial position of the first and second rollers. An extracorporeal perfusion system includes a fluid reservoir, an oxygenator, flexible tubing coupling the reservoir to the oxygenator, and the roller pump, wherein the flexible tubing is disposed within the raceway. The motor is configured to rotate the rotor to cause fluid to flow within the tubing.

A roller pump includes a roller pump rotor including a first roller arm having a first roller rotatably coupled thereto and a second roller arm having a second roller rotatably coupled thereto, a raceway disposed around the rotor, a pump motor configured to rotate the rotor relative to the raceway, and an electronic actuator disposed on the rotor, wherein the actuator is configured to change a radial position of the first and second rollers. The actuator may be couplable to the motor such that the motor is capable of rotating the rotor and changing the radial position of the first and second rollers. An extracorporeal perfusion system includes a fluid reservoir, an oxygenator, flexible tubing coupling the reservoir to the oxygenator, and the roller pump, wherein the flexible tubing is disposed within the raceway. The motor is configured to rotate the rotor to cause fluid to flow within the tubing.

A method of calibrating a roller pump includes positioning a tubing within a raceway of a roller pump, activating the pump to rotate a rotor relative to the raceway with first and second rollers disposed in an innermost position corresponding to zero flow, actuating an electronic actuator to move the first and second rollers radially outward until a flow rate greater than zero is measured, storing a lower flow limit within a control unit corresponding to a first position at which the flow rate was zero, actuating the electronic actuator to move the first and second rollers radially outward from the first position until the flow rate stops changing, and storing an upper flow limit within the control unit corresponding to a second position at which the flow rate stopped changing. An extracorporeal perfusion system includes a control unit having an automatic calibration mode.

A method of calibrating a roller pump includes positioning a tubing within a raceway of a roller pump, activating the pump to rotate a rotor relative to the raceway with first and second rollers disposed in an innermost position corresponding to zero flow, actuating an electronic actuator to move the first and second rollers radially outward until a flow rate greater than zero is measured, storing a lower flow limit within a control unit corresponding to a first position at which the flow rate was zero, actuating the electronic actuator to move the first and second rollers radially outward from the first position until the flow rate stops changing, and storing an upper flow limit within the control unit corresponding to a second position at which the flow rate stopped changing. An extracorporeal perfusion system includes a control unit having an automatic calibration mode.

A roller pump includes a roller pump rotor including a first roller arm having a first roller rotatably coupled thereto and a second roller arm having a second roller rotatably coupled thereto, a raceway disposed around the rotor, a pump motor configured to rotate the rotor relative to the raceway, and an electronic actuator disposed on the rotor, wherein the actuator is configured to change a radial position of the first and second rollers. The actuator may be couplable to the motor such that the motor is capable of rotating the rotor and changing the radial position of the first and second rollers. An extracorporeal perfusion system includes a fluid reservoir, an oxygenator, flexible tubing coupling the reservoir to the oxygenator, and the roller pump, wherein the flexible tubing is disposed within the raceway. The motor is configured to rotate the rotor to cause fluid to flow within the tubing.

A roller pump includes a roller pump rotor including a first roller arm having a first roller rotatably coupled thereto and a second roller arm having a second roller rotatably coupled thereto, a raceway disposed around the rotor, a pump motor configured to rotate the rotor relative to the raceway, and an electronic actuator disposed on the rotor, wherein the actuator is configured to change a radial position of the first and second rollers. The actuator may be couplable to the motor such that the motor is capable of rotating the rotor and changing the radial position of the first and second rollers. An extracorporeal perfusion system includes a fluid reservoir, an oxygenator, flexible tubing coupling the reservoir to the oxygenator, and the roller pump, wherein the flexible tubing is disposed within the raceway. The motor is configured to rotate the rotor to cause fluid to flow within the tubing.