Fluid injection system having various systems for controlling an injection procedure

Patent metadata

Field	Value
Publication number	US-2018296754-A1
Application number	US-201816013297-A
Country	US
Kind code	A1
Filing date	Jun 20, 2018
Priority date	May 12, 2011
Publication date	Oct 18, 2018
Grant date	—

Abstract

A fluid injection system that includes an injector head having a syringe for delivering a fluid to a patient; a mounting structure pivotally connected to the injector head and configured to support the injector head above a surface; and a control system operationally coupled to the injector head for controlling an injection procedure is disclosed. The fluid injection system is provided with various sensors to control various aspects of the fluid injection system, such as the establishment of a reference plane, the determination of a tilt angle of the injector head, and the determination of a temperature of an actuation system of the injector head.

First claim

1 - 38 . (canceled)

39 . A fluid injection system comprising:
an injector head for delivering a fluid to a patient, the injector head comprising a housing, a mechanical interface on a front face of the housing for receiving a syringe, a piston positioned within the housing for connecting to a plunger of the syringe, and an actuation system positioned within the housing for moving the piston; at least one temperature sensor positioned in the vicinity of the actuation system within the housing of the injector head for generating signals indicative of the temperature of the actuation system; and a control system operationally coupled to the injector head and the at least one temperature sensor for controlling an injection procedure, wherein the control system inhibits operation of the actuation system if a temperature determined by the at least one temperature sensor exceeds a predefined threshold level.

40 . The fluid injection system of claim 39 , wherein the actuation system comprises: a gear train and linear ball screw; a brushless DC motor coupled to the gear train and linear ball screw; and a motor amplifier operationally coupled to the motor.

41 . The fluid injection system of claim 39 , wherein the control system is operationally coupled to a display unit having a graphical user interface.

42 . The fluid injection system of claim 41 , wherein a user is alerted that the temperature determined by the at least one temperature sensor exceeds the predefined threshold level by a message appearing on the graphical user interface of the display unit.

43 . The fluid injection system of claim 39 , wherein the housing of the injector head further comprises a display on a top portion thereof.

44 . The fluid injection system of claim 43 , wherein the display displays information regarding at least one of the following: volume remaining, flow rate, pressure, and programmed volume.

45 . A method of controlling a fluid injection system during a fluid injection procedure, the method comprising:
positioning at least one temperature sensor in a vicinity of an actuation system of an injector head of the fluid injection system; receiving, by a control system of the fluid injection system, a signal indicative of a temperature of the actuation system; and inhibiting, by the control system of the fluid injection system, operation of the actuation system if a temperature determined by the at least one temperature sensor exceeds a predefined threshold level.

46 . The method of claim 45 , wherein the injector head is configured to deliver fluid to a patient and comprises a housing, a mechanical interface on a front face of the housing for receiving a syringe, a piston positioned within the housing for connecting to a plunger of the syringe, and the actuation system positioned within the housing for moving the piston.

47 . The method of claim 45 , wherein the actuation system comprises: a gear train and linear ball screw; a brushless DC motor coupled to the gear train and linear ball screw; and a motor amplifier operationally coupled to the motor.

48 . The method of claim 45 , further comprising:
alerting a user that the temperature determined by the at least one temperature sensor exceeds the predefined threshold level by a message appearing on a graphical user interface of a display unit that is operatively connected to the control system.

49 . A fluid injection system comprising:
an injector head for delivering a fluid to a patient; a reference plane sensor positioned on the injector head; and a control system operationally coupled to the injector head and the reference plane sensor for controlling an injection procedure, wherein the control system is configured to: (a) receive an input from the reference plane sensor to establish a reference plane that is parallel to a floor surface; (b) determine an existence of a reference plane offset detrimental to air management, wherein the reference plane offset is between the reference plane and the floor surface, by determining an existence of a sensor offset between a coordinate system of the reference plane sensor and an axis in a Cartesian system; (c) alert a user in response to the existence of the reference plane offset that is detrimental to air management; and (d) alert the user to reposition the injector head to a new reference plane to compensate for the reference plane offset thereby establishing the new reference plane which is parallel to the floor surface and corrects for the detrimental air management.

50 . The fluid injection system of claim 49 , wherein the user is alerted of the existence of the reference plane offset between the reference plane and the floor surface by a message appearing on a graphical user interface of a display unit.

51 . The fluid injection system of claim 49 , wherein the reference plane sensor is a 3-axis accelerometer.

52 . A fluid injection system comprising:
an injector head for delivering a fluid to a patient, the injector head comprising a housing, a mechanical interface on a front face of the housing for receiving at least one syringe, at least one piston positioned within the housing for connecting to a plunger of the at least one syringe, and an actuation system positioned within the housing for moving the at least one piston; a reference plane sensor positioned on the injector head; and a control system operationally coupled to the injector head and the reference plane sensor for controlling an injection procedure, wherein the control system is configured to: receive an input from the reference plane sensor to establish a reference plane that is parallel to a floor surface; determine an existence of a reference plane offset detrimental to air management, wherein the reference plane offset is between the reference plane and the floor surface, by determining an existence of a sensor offset between a coordinate system of the reference plane sensor and an axis in a Cartesian system; alert a user in response to the existence of the reference plane offset that is detrimental to air management; and alert the user to reposition the injector head to a new reference plane to compensate for the reference plane offset thereby establishing the new reference plane which is parallel to the floor surface and corrects for the detrimental air management.

53 . The fluid injection system of claim 52 , wherein the user is alerted of the existence of an offset between the reference plane and the floor surface by a message appearing on a graphical user interface of a display unit.

54 . The fluid injection system of claim 52 , wherein the reference plane sensor is a 3-axis accelerometer.

Assignees

• Bayer Healthcare Llc

Inventors

• Shearer Jr John
• Scutt Christopher
• Grumski Walter
• Spohn Michael
• Mcwilliams Jarrell T
• Long Arlie D
• Morton Richard

Classifications

• A61M2205/3368

  Temperature · CPC title

• A61M5/00 Primary

  Devices for bringing media into the body in a subcutaneous, intra-vascular or intramuscular way; Accessories therefor, e.g. filling or cleaning devices, arm-rests ({vaccination appliances for veterinary use A61D1/025} ; tube connectors, tube couplings, valves or branch units specially adapted for medical use A61M39/00; containers specially adapted for medical or pharmaceutical purposes A61J1/00; {combinations of vial and syringe for mixing or transferring their contents A61J1/20; holders for containers for collecting, storing or administering blood or medical fluids A61J1/16}) · CPC title

• A61M5/16831 Primary

  Monitoring, detecting, signalling or eliminating infusion flow anomalies (low-level float-valves causing cut-off A61M5/40; indicating or recording presence, absence or direction of flow in general G01P13/0066) · CPC title

• A61M5/14546

  Front-loading type injectors · CPC title

• A61M5/007 Primary

  for contrast media · CPC title