Multi-fluid medical injector system and methods of operation

A fluid injector system, comprising:

• a powered injector;
• a pressure jacket support comprising a front plate and a rear plate, wherein the rear plate is connected to the powered injector and the front plate is spaced from the rear plate and has a slot defined therein;
• a syringe pressure jacket having a proximal end pivotally connected to the rear plate so that a distal end of the syringe pressure jacket pivots relative to the front plate;
• a syringe comprising a syringe body with a distally extending discharge conduit and a conical distal end forming a closed apex point;
• and
• a fluid control module connected to the front plate,
• wherein when the syringe is disposed in a barrel of the syringe pressure jacket, pivotal movement of the syringe pressure jacket distal end toward the front plate places the discharge conduit within the slot in the front plate,
• wherein the front plate defines a mating recess defining an apex curve for the closed apex point such that the closed apex point of the conical distal end is received in the apex curve as the discharge conduit is received in the slot in the front plate,
• wherein the discharge conduit is offset from a central longitudinal axis of the syringe body, and
• wherein the pivotal movement of the pressure jacket distal end towards the front plate causes the closed apex point to define an arc path to seat the closed apex point in a central and deepest point in the apex curve in the mating recess, the seated engagement providing a self-centering action for the syringe body to counteract an upward directed force imparted to the syringe body when the syringe is pressurized.

A method of operating a fluid injector system, the method comprising:

• providing a powered injector comprising:
• a pressure jacket support comprising a front plate and a rear plate, wherein the rear plate is connected to the powered injector and the front plate is spaced from the rear plate and has a slot defined therein;
• and
• a syringe pressure jacket having a proximal end pivotally connected to the rear plate of the pressure jacket support so that a distal end of the syringe pressure jacket pivots relative to the front plate of the pressure jacket support;
• loading a syringe into a barrel of the syringe pressure jacket, the syringe comprising a syringe body with a distally extending discharge conduit and a conical distal end forming a closed apex point;
• and
• pivoting the pressure jacket distal end toward the front plate of the pressure jacket support to place the discharge conduit within the slot in the front plate,
• wherein the front plate of the pressure jacket support defines a mating recess defining an apex curve for the closed apex point such that the closed apex point of the conical distal end is received in the apex curve as the discharge conduit is received in the slot in the front plate,
• wherein the discharge conduit is offset from a central longitudinal axis of the syringe body, and
• wherein the pivotal movement of the syringe pressure jacket distal end towards the front plate causes the closed apex point to define an arc path to seat the closed apex point in a central and deepest point in the apex curve in the mating recess, the seated engagement providing a self-centering action for the syringe body to counteract an upward directed force imparted to the syringe body when the syringe is pressurized.

A method of operating a fluid injector system, the method comprising:

• providing a powered injector comprising a pressure jacket supporting a syringe, the pressure jacket pivotally connected to the powered injector, and a pressure jacket support comprising a front plate defining a slot and a rear plate, the syringe comprising a syringe body with a distally extending discharge conduit and a conical distal end forming a closed apex point;
• pivoting the pressure jacket toward the front plate to place the discharge conduit within the slot in the front plate, the front plate defining a mating recess defining an apex curve for the closed apex point such that the closed apex point of the conical distal end is received in the apex curve as the discharge conduit is received in the slot in the front plate;
• pivoting the injector onto one lateral side to orient the discharge conduit to a top position;
• and
• performing a fluid priming and an air purging procedure on the syringe,
• wherein the discharge conduit is offset from a central longitudinal axis of the syringe body, and
• wherein the pivotal movement of the pressure jacket distal end towards the front plate causes the closed apex point to define an arc path to seat the closed apex point in a central and deepest point in the apex curve in the mating recess, the seated engagement providing a self-centering action for the syringe body to counteract an upward directed force imparted to the syringe body when the syringe is pressurized.