Powerhead of a Power Injection System

• US 20120283561A1
• Filed: 07/13/2012
• Published: 11/08/2012
• Est. Priority Date: 10/13/2004
• Status: Active Grant

• Current Assignee: Charles S. Neer, David M. Brooks, James R. Small, Robert J. Ziemba
• Original Assignee: Charles S. Neer, David M. Brooks, James R. Small, Robert J. Ziemba
• Inventors: Neer, Charles S., Ziemba, Robert J., Brooks, David M., Small, James R.
• Granted Patent: US 8,726,910 B2
• Time in Patent Office: Days
• US Class Current: 600/432
• CPC Class Codes: A61B 6/548 Remote control of the apparatus or devices
• CPC Class Codes: A61M 2205/3306 Optical measuring means
• CPC Class Codes: A61M 2205/3317 Electromagnetic, inductive or dielectric measuring means
• CPC Class Codes: A61M 2205/3389 Continuous level detection A61M2205/3393 takes precedence
• CPC Class Codes: A61M 2205/502 User interfaces, e.g. screens or keyboards
• CPC Class Codes: A61M 2205/52 with memories providing a history of measured variating parameters of apparatus or patient
• CPC Class Codes: A61M 2205/587 Lighting arrangements
• CPC Class Codes: A61M 2205/6054 Magnetic identification systems
• CPC Class Codes: A61M 2205/6063 Optical identification systems
• CPC Class Codes: A61M 5/007 for contrast media
• CPC Class Codes: A61M 5/14546 Front-loading type injectors
• CPC Class Codes: A61M 5/14566 with a replaceable reservoir for receiving a piston rod of the pump
• CPC Class Codes: A61M 5/16827 controlling delivery of multiple fluids, e.g. sequencing, mixing or via separate flow-paths infusion of multiple fluids without using a controller A61M5/1407
• CPC Class Codes: A61M 5/1785 comprising radioactive shield means syringe shields or holders for storage of radioactive sources G21F5/018

Abstract

A contrast media injection system includes detects the absolute position of the syringe ram using a non-contact sensor. A series of magnets and Hall-Effect sensors may be used or an opto-reflective system. Illuminated knobs that are connected to the drive mechanism for the syringe ram rotate with the drive and provide visual feedback on operation through the illumination. Analog Hall-Effect sensors are used to determine the presence or absence of magnets that identify the type of faceplate being used. The faceplates include control electronics, connected to the powerhead through connectors, which may be interchangeably used by the two faceplates. The faceplate electronics include detectors for automatically detecting the capacity of pre-filled syringes. Additional features include using historical data to provide optimum pressure limit values during an injection protocol, a removable memory device for storing and transferring information such as injection protocols and injector statistics, and password protection of such protocols.

Claims

1-64. -64. (canceled)

65. A contrast media injector system, comprising:

a remote console;

a powerhead comprising;

a syringe ram; and

a drive mechanism coupled with said syringe ram and configured to move said syringe ram; and

a data communication link between said remote console and said powerhead.

66. The contrast media injector system of claim 65, wherein said remote console comprises software and memory to facilitate data communication operations with said powerhead.

67. The contrast media injector system of claim 66, wherein said powerhead comprises software and memory to facilitate data communication operations with said remote console.

68. The contrast media injector system of claim 65, wherein said remote console comprises remote console memory, and wherein said powerhead comprises powerhead memory.

69. The contrast media injector system of claim 68, wherein said remote console memory comprises programs for automatic injection, and wherein said programs for automatic injection are transferrable from said remote console memory to said powerhead memory.

70. The contrast media injector system of claim 69, further comprising:

a replacement remote console, wherein said programs for automatic injection are transferable from said powerhead memory to said replacement remote console.

71. The contrast media injector system of claim 68, wherein said powerhead memory comprises calibration parameters, and wherein said calibration parameters are transferrable from said powerhead memory to said remote console memory.