Display of target cardiac flow based on cardiac index calculation

• US 8,382,678 B2
• Filed: 10/26/2007
• Issued: 02/26/2013
• Est. Priority Date: 03/08/2007
• Status: Active Grant

• Current Assignee: Medtronic Incorporated (Medtronic Plc)
• Original Assignee: Medtronic Incorporated (Medtronic Plc)
• Inventors: Steffens, Brian J., Salzwedel, Mark, Bearss, Mark G., Rohde, Keith D.
• Primary Examiner(s): Mallari, Patricia
• Assistant Examiner(s): D'ANGELO, MICHAEL J
• Application Number:
  US11/977,847
• Publication Number:
  US 20080221465A1
• Time in Patent Office: 1,950 Days
• Field of Search: 600/481, 600500-502, 600504-507
• US Class Current: 600/504
• CPC Class Codes: A61B 5/026 Measuring blood flow A61B3/1233, A61B3/1241 take precedence
• CPC Class Codes: A61B 5/743 Displaying an image simultaneously with additional graphical information, e.g. symbols, charts, function plots
• CPC Class Codes: A61B 5/7435 Displaying user selection data, e.g. icons in a graphical user interface
• CPC Class Codes: A61B 5/7475 User input or interface means, e.g. keyboard, pointing device, joystick
• CPC Class Codes: A61M 1/3621 Extra-corporeal blood circuits single-needle circuits A61M1/30
• CPC Class Codes: A61M 2205/505 Touch-screens; Virtual keyboard or keypads; Virtual buttons; Soft keys; Mouse touches
• CPC Class Codes: G06F 3/0484 for the control of specific functions or operations, e.g. selecting or manipulating an object, an image or a displayed text element, setting a parameter value or selecting a range
• CPC Class Codes: G16H 20/40 relating to mechanical, radiation or invasive therapies, e.g. surgery, laser therapy, dialysis or acupuncture
• CPC Class Codes: G16H 40/63 for local operation
• CPC Class Codes: G16H 50/30 for calculating health indices; for individual health risk assessment

Abstract

User interfaces for medical perfusion systems that provide oxygenation, filtering, and recirculation of blood in connection with various medical procedures are provided. In particular, methods of displaying and communicating a desired target flow rate and cardiac index during cardiopulmonary bypass surgeries are provided.

Claims

1. A method of graphically displaying target blood flow rate on a display screen of a user interface during cardiopulmonary bypass surgery, the method comprising the steps of:

providing patient data including height, weight, and a desired cardiac index to the user interface;

displaying a first graphical indicator of actual blood flow rate in real time on the display screen;

calculating target blood flow rate with a processing component associated with the user interface, wherein the target blood flow rate is at least partially based on the patient data; and

displaying a second graphical indicator of the calculated target blood flow rate on the display screen.

2. The method of claim 1, further comprising displaying a numerical value of an actual cardiac index in real time on the display screen.

3. The method of claim 1, further comprising displaying a numerical value of actual blood flow rate in real time on the display screen.

4. The method of claim 1, wherein the step of displaying a second graphical indicator of the calculated target blood flow rate on the display screen comprises overlaying the second graphical on the first graphical indicator.

5. The method of claim 1, wherein the step of displaying a second graphical indicator of the calculated target blood flow rate on the display screen comprises displaying a vertical green bar on the display screen.

6. The method of claim 1, wherein the step of providing patient data to the user interface comprises displaying a settings screen and entering the patient data into the settings screen.

7. The method of claim 6, further comprising selecting a body surface area algorithm from the settings screen.

8. The method of claim 7, wherein the patient data further comprises the selected body surface algorithm.