DEVICES, SYSTEMS AND METHOD FOR CALIBRATION OF SYSTEMS

• US 20070244428A1
• Filed: 04/18/2007
• Published: 10/18/2007
• Est. Priority Date: 03/28/2005
• Status: Active Grant

• Current Assignee: Bayer Healthcare LLC (Bayer AG)
• Original Assignee: Medrad Incorporated (Bayer AG)
• Inventors: Uram, Martin, Frazier, Michael, Adams, Kenton
• Granted Patent: US 8,307,693 B2
• Time in Patent Office: Days
• US Class Current: 604/67
• CPC Class Codes: A61M 2205/3344 Measuring or controlling pressure at the body treatment site
• CPC Class Codes: A61M 2205/702 automatically during use
• CPC Class Codes: A61M 5/007 for contrast media
• CPC Class Codes: A61M 5/1452 pressurised by means of pistons
• CPC Class Codes: G01F 25/13 using a reference counter

Abstract

An injector system for use in injecting a fluid into a patient includes a communication system adapted to receive data from at least a first sensor that measures a value first variable. The communication system is also adapted to receive data from a calibrated sensor that measures a value the first variable. The injector system further includes a calibration system adapted to calibrate output from the first sensor in response to output from the calibrated sensor. An injector for use in injecting a fluid into a patient, includes a first sensor that measures a value first variable, a communication port adapted to receive data from a calibrated sensor that measures the value the first variable, and a controller adapted to compare data from the calibrated sensor with data from the first sensor and to calibrate output from the first sensor. The devices, systems and methods of the present invention are applicable to systems other than injection systems. For example, a method for calibrating a system (for example, an injector system) includes: placing a calibrated sensor in communication with the system; making a measurement of the value of at least a first variable with the calibrated sensor; transmitting the measured value from the calibrated sensor to the system via a data communication system in operative connection between the calibrated sensor and the system; making a measurement of the value of the first variable with a sensor of the system at approximately the same time as the measurement made with the calibrated sensor; comparing the value of the first variable measured with the calibrated sensor with the value of the first variable measured with the system sensor; and calibrating the output of the system sensor at least in part based upon the comparison.

Claims

1. An injector system for use in injecting a fluid into a patient, comprising:

a communication system adapted to receive data from at least a first sensor that measures a value first variable;

the communication system also adapted to receive data from a calibrated sensor that measures a value the first variable;

a calibration system adapted to calibrate output from the first sensor in response to output from the calibrated sensor.

2. The injector system of claim 1 further comprising an adapter in operative connection between the calibrated sensor and the communication system to convert output from the calibrated sensor to a form suitable for communication to the communication system.

3. The injector system of claim 1 further comprising a control system adapted to change the value of the variable so that multiple values can be measured by the first sensor and the calibated sensor.

4-9. -9. (canceled)

10. An injector for use in injecting a fluid into a patient, comprising:

a first sensor that measures a value first variable;

a communication port adapted to receive data from a calibrated sensor that measures the value the first variable;

a controller adapted to compare data from the calibrated sensor with data from the first sensor and to calibrate output from the first sensor.

11. The injector of claim 10 wherein the controller is also adapted to effect a change in the variable over a period of time so that readings of data from the first variable and data from the calibrated sensor can be made over a range of values of the first variable.

12. The injector of claim 11 wherein the variable is fluid pressure.

13. The injector of claim 10 further comprising an adapter in operative connection between the calibrated sensor and the communication system to convert output from the calibrated sensor to a form suitable for communication to the communication system.

14. The injector of claim 10 further comprising a processor in communicative connection with a memory, the memory having stored therein a computer program to perform the comparison and to calibrate the data from the first sensor.

15-21. -21. (canceled)

22. A method for calibrating a system;

comprising;

placing a calibrated sensor in communication with the system;

making a measurement of the value of at least a first variable with the calibrated sensor;

trasmitting the measured value from the calibratcd sensor to the system via a data communication system in operative connection between the calibrated sensor and the system;

making a measurement of the value of the first variable with a sensor of the system at approximately the same time as the measurement made with the calibrated sensor;

comparing the value of the first variable measured with the calibrated sensor with the value of the first variable measured with the system sensor; and

calibrating the output of the system sensor at least in part based upon the comparison.