Contrast medium injection management apparatus, image diagnostic apparatus, and contrast medium injection apparatus

• US 20060224104A1
• Filed: 03/29/2006
• Published: 10/05/2006
• Est. Priority Date: 03/30/2005
• Status: Active Grant

• Current Assignee: Toshiba Medical Systems Corporation (Canon Inc.)
• Original Assignee: Toshiba Medical Systems Corporation (Canon Inc.), Kabushiki Kaisha Toshiba (Toshiba Corporation)
• Inventors: Ohishi, Satoru, Sakaguchi, Takuya
• Granted Patent: US 8,480,614 B2
• Time in Patent Office: Days
• US Class Current: 604/27
• CPC Class Codes: A61M 5/007 for contrast media
• 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 5/16845 by weight
• CPC Class Codes: A61M 5/16895 by monitoring weight change, e.g. of infusion container

Abstract

A contrast medium injection management apparatus includes a measuring unit which repeatedly measures the injection amount of contrast medium injected from at least one contrast medium injection device into a subject to be examined, a cumulative injection amount calculating unit which repeatedly calculates a cumulative injection amount at the start of examination or after an arbitrary point of time from the injection amount, and a display unit which displays the cumulative injection amount.

Claims

1. A contrast medium injection management apparatus comprising:

a measuring unit which repeatedly measures an injection amount of contrast medium injected from at least one contrast medium injection device into a subject to be examined;

a cumulative injection amount calculating unit which repeatedly calculates a cumulative injection amount at the start of examination or after an arbitrary point of time from the injection amount; and

a display unit which displays the cumulative injection amount.

4. An apparatus according to claim 1, wherein the measuring unit measures a total injection amount of contrast medium injected from said plurality of contrast medium injection devices into the subject.

5. An apparatus according to claim 1, wherein the measuring unit has a weight sensor which measures a weight of a contrast medium bottle.

6. An apparatus according to claim 5, wherein the measuring unit has a volume calculating unit which calculates the injection amount of contrast medium as a volume on the basis of a change in the weight of the contrast medium bottle and a specific gravity of the contrast medium.

7. An apparatus according to claim 1, wherein the measuring unit has a sensor which measures an amount of contrast medium passing through a catheter or a tube connected to the catheter.

8. An apparatus according to claim 1, further comprising a ratio calculating unit which calculates a ratio of the cumulative injection amount to a reference injection amount.

9. An apparatus according to claim 8, wherein the display unit displays a ratio of the cumulative injection amount to the reference injection amount in the form of a bar graph.

10. An apparatus according to claim 9, wherein the display unit changes a display form of the bar graph stepwise in accordance with the ratio of the cumulative injection amount to the reference injection amount.

11. An apparatus according to claim 8, wherein the display unit numerically displays the ratio of the cumulative injection amount to the reference injection amount.

12. An apparatus according to claim 9, wherein the display unit makes the display form of the bar graph obtained when the cumulative injection amount exceeds the reference injection amount differ from the display form of the bar graph obtained when the cumulative injection amount does not exceed the reference injection amount.

14. An apparatus according to claim 9, wherein the display unit makes the display form of the bar graph obtained when the cumulative injection amount exceeds a predetermined ratio to the reference injection amount differ from the display form of the bar graph obtained when the cumulative injection amount does not exceed the predetermined ratio to the reference injection amount.

15. An apparatus according to claim 1, wherein the display unit displays an early alert message when the cumulative injection amount has exceeded a predetermined ratio to the reference injection amount.

16. An apparatus according to claim 1, wherein the display unit displays a warning message when the cumulative injection amount has exceeded the reference injection amount.

18. An apparatus according to claim 1, further comprising a storage unit which stores data of the cumulative injection amount together with information of the subject and examination information.

19. An image diagnostic apparatus comprising a contrast medium injection management apparatus defined in claim 1.

20. A contrast medium injection apparatus comprising a contrast medium injection management apparatus defined in claim 1.

2. A contrast medium injection management apparatus comprising:

a measuring unit which repeatedly measures the injection amount of contrast medium injected from at least one contrast medium injection device into a subject to be examined;

a cumulative injection amount calculating unit which repeatedly calculates a cumulative injection amount at the start of examination or after an arbitrary point of time from the injection amount; and

a display unit which displays a warning message when the cumulative injection amount exceeds a reference injection amount.

13. An apparatus according to claim 2, wherein the display unit numerically displays an excessive amount by which the cumulative injection amount exceeds the reference injection amount.

17. An apparatus according to claim 2, further comprising a reference injection amount generating unit which generates the reference injection amount in accordance with a weight of the subject.

3. A contrast medium injection management apparatus comprising:

a measuring unit which repeatedly measures the injection amount of contrast medium injected from at least one contrast medium injection device into a subject to be examined;

a cumulative injection amount calculating unit which repeatedly calculates a cumulative injection amount at the start of examination or after an arbitrary point of time from the injection amount; and

a display unit which displays an early alert message when the cumulative injection amount exceeds a predetermined ratio to a reference injection amount.

21. A contrast medium injection management apparatus comprising:

a measuring unit which repeatedly measures the injection amount of contrast medium injected from at least one contrast medium injection device into a subject to be examined;

a cumulative injection amount calculating unit which repeatedly calculates a cumulative injection amount at the start of examination or after an arbitrary point of time from the injection amount; and

a display unit which displays an early alert message when the cumulative injection amount exceeds a predetermined ratio to a reference injection amount, and displays a warning message when the cumulative injection amount exceeds the reference injection amount.

22. An image diagnostic apparatus comprising:

means for storing an examination routine having a plurality of imaging operations in sequence;

means for storing a planned injection amount of contrast medium used for each imaging operation in the examination routine;

means for calculating a total injection amount of contrast medium used in the examination routine from a planned injection amount of contrast medium used for each of said plurality of imaging operations;

means for displaying a planned injection amount of contrast medium to be used for each of said plurality of injecting operations and the calculated total injection amount of contrast medium; and

means for modifying the contrast medium amount for said each examination in accordance with an instruction from an operator.

23. An apparatus according to claim 22, further comprising

means for sequentially calculating a cumulative injection amount of the contrast medium after the start of examination;

and

means for modifying the total injection amount of contrast medium from the cumulative injection amount.

24. An apparatus according to claim 22, further comprising

means for displaying the total injection amount of contrast medium and the modified total injection amount of contrast medium, and

means for changing display forms of the total injection amount of contrast medium and the modified total injection amount of contrast medium when a difference between the total injection amount of contrast medium and the modified total injection amount of contrast medium exceeds a predetermined amount.