Patient specific dosing contrast delivery systems and methods

In a system for injection of a patient with a fluid medium in a medical procedure, the combination comprising:

• (a) a source of a fluid medium including a source of contrast medium, a source of diluent, and a mixing means;
• (b) pressurizing means in operative association with the fluid medium to pressurize the fluid medium for patient infusion;
• and
• (c) electronic control means capable of calculating an initial flow rate and concentration of fluid medium based on characteristic data of the patient.

A system for injecting a patient with a fluid medium in a medical procedure, the combination comprising:

• (a) a source of a fluid medium at a selected concentration;
• (b) pressurizing means in operative association with the fluid medium to pressurize the fluid medium for patient infusion;
• and
• (c) electronic control means operably connected to said pressurizing means capable of calculating an initial flow rate for a patient based on characteristic data of the patient.

A system for injection of a patient with a fluid medium in a medical procedure, the combination comprising:

• (a) a source of a fluid medium including a source of contrast medium, a source of diluent, and a mixing means;
• (b) pressurizing means in operative association with the fluid medium to pressurize the fluid medium for patient infusion;
• and
• (c) electronic control means capable of calculating an initial flow rate and concentration of fluid medium based on data characteristic of the patient.

In a process for delivering fluid medium to at least one patient, the steps comprising:

• a) providing a source of a fluid medium at a selected concentration;
• b) providing an adjustable pressurizing mechanism for pressurizing the fluid medium;
• and
• c) providing an electronic control system that is capable of regulating the pressurizing mechanism to adjust the pressure of the fluid medium for patient infusion.

In a process for delivering fluid medium to at least one patient, the steps comprising:

• a) providing a source of a fluid medium at a selected concentration;
• b) providing an adjustable pressurizing mechanism for pressurizing the fluid medium;
• c) providing an electronic control system that is capable of regulating the pressurizing mechanism to adjust the flow rate of the fluid medium for patient infusion;
• and
• d) adjusting the flow rate of the fluid medium during patient infusion.

In a process for delivering fluid medium to at least one patient, the steps comprising:

• a) providing a source of a fluid medium at a selected concentration;
• b) providing a source of a diluent and an adjustable mixing mechanism for mixing the fluid medium and diluent to adjust the concentration of the fluid medium;
• c) providing an adjustable pressurizing mechanism for pressurizing the fluid medium;
• and
• d) providing an electronic control system that is capable of regulating the flow rate via the pressurizing mechanism and which is also capable of adjusting the mixing mechanism.

In a process for delivering fluid medium to at least one patient, the steps comprising:

• a) providing a source of a fluid medium at a selected concentration;
• b) providing a source of a diluent and an adjustable mixing mechanism for mixing the fluid medium and diluent to adjust the concentration of the fluid medium;
• c) providing an adjustable pressurizing mechanism for pressurizing the fluid medium;
• d) providing an electronic control system that is capable of regulating the pressurizing mechanism and which is also capable of adjusting the mixing mechanism;
• and
• e) adjusting the concentration and pressure of the fluid medium during patient infusion.

In a process for delivering fluid medium to at least one patient, the steps comprising:

• a) providing a source of a fluid medium at a selected concentration;
• b) providing a source of a diluent and an adjustable mixing mechanism for mixing the fluid medium and diluent to adjust the concentration of the fluid medium;
• c) providing an adjustable pressurizing mechanism for pressurizing the fluid medium;
• d) providing an electronic control system that is capable of automatically regulating the pressurizing mechanism and which is also capable of adjusting the mixing mechanism based on feedback received from at least one sensor;
• and
• e) providing a sensor which is operably connected to the electronic control system for providing feedback.

A fluid medium injection controller comprising:

• a syringe in fluid communication with a path of the fluid medium from a source to a patient;
• the syringe having a plunger for mechanically forcing fluid from the syringe into the path of the fluid medium;
• and
• a sensor attached to the plunger designed to sense a position of the plunger within the syringe and provide a signal representing the position.

A fluid medium injection controller comprising:

• a piston and a plunger;
• an electromechanical transducer located between the plunger and the piston;
• an electric motor having a base at one end and a threaded drive shaft attached to the other end, the base of the motor being attached to the transducer;
• and
• wherein the threaded drive shaft of the motor operably engages a threaded fitting on the plunger.

A method of controlling a fluid medium injector comprising the steps of:

• applying a first force to an electromechanical transducing device;
• generating a first signal representing the first force applied to the electro-mechanical transducing device;
• applying the first signal to a fluid medium injector and adjusting the output of the fluid medium injector with the first signal;
• generating a second signal representing a pressure of the fluid medium injector;
• applying the second signal to the electromagnetic transducer;
• and
• generating a second force in substantially the opposite direction of the first force based on the strength of the second signal.

Automated apparatus for connecting fluid paths of selected ones of a plurality of devices to a patient, comprising:

• a disposable fluid conduit communicating with the patient and the fluid paths of respective ones of said devices;
• a plurality of actuators operable to communicate selected ones of said devices to the patient;
• and
• a controller coupled to said reusable actuators with a control signal path, said controller operable to control said reusable actuators, thereby communicating selected ones of said devices to said patient.