System and method for displaying medical process diagrams

• US 6,743,172 B1
• Filed: 11/03/2000
• Issued: 06/01/2004
• Est. Priority Date: 01/14/1998
• Status: Expired due to Fees

• Current Assignee: Alliance Pharmaceutical Corporation, The Trustees of Dartmounth College (Dartmouth College)
• Original Assignee: Alliance Pharmaceutical Corporation, The Trustees of Dartmounth College (Dartmouth College)
• Inventors: Blike, George T.
• Primary Examiner(s): Nasser, Robert L.
• Application Number:
  US09/706,512
• Time in Patent Office: 1,306 Days
• Field of Search: 600/300-301, 600/485, 600/500-504, 600/505, 600/526
• US Class Current: 600/300
• CPC Class Codes: A61B 5/14551 for measuring blood gases
• CPC Class Codes: A61B 5/412 Detecting or monitoring sepsis

Abstract

A system and method is described for determining and graphically displaying oxygenation states of a patient in real time. The system is non-invasive and can display information to a physician that is intuitive. Various display objects are described for illustrating the output of oxygenation values. The display objects reflect the in vivo physiology that they measure, thus making interpretation of the measured values very intuitive.

Claims

1. A data object visually representing the vascular resistance to blood flow in a patient wherein the object is visually representative of the mean arterial pressure (MAP) of the patient'"'"'s blood and the cardiac output (CO) of a patient'"'"'s heart;

wherein the data object is further representative of the central venous pressure (CVP) of a patient'"'"'s blood and the systemic vascular resistance (SVR) of the patient'"'"'s blood.

2. The data object of claim 1, wherein the data object is in the shape of a pipe.

3. The data object of claim 2, wherein one end of the of the pipe dilates or constricts relative to the other end of the pipe as the mean arterial pressure or cardiac output of the patient fluctuates.

4. A data object visually representing the vascular resistance to blood flow in a patient wherein:

the data object is visually representative of the mean arterial pressure (MAP) of the patient'"'"'s blood, the cardiac output (CO) of a patient'"'"'s heart; and

the data object is located between two parallel Y-axes and

the first and left Y-axis includes a mean arterial pressure (MAP) indicator and a central venous pressure (CVP) indicator.

5. The data object of claim 4, wherein the second and right Y-axis includes a cardiac output (CO) indicator which reflects the cardiac output (CO) of the patient.

6. The data object of claim 4, wherein a systemic vascular resistance (SVR) meter is disposed along an X-axis in-between and linking the Y-axes wherein with a normal SVR reading the SVR meter reads at the 3 o'"'"'clock position and wherein with a low SVR reading the SVR meter points downward from the 3 o'"'"'clock position causing the object to expand on its right side and with a high SVR reading the SVR meter points upward from the 3 o'"'"'clock position causing the object to contract on its right side.

7. An object display comprised of a plurality of objects for visually displaying the physiological status of a patient comprising:

an object for displaying the level of oxygenation of a patient'"'"'s blood;

an object for representing the cardiac output of a patient'"'"'s heart;

an object for representing the vascular resistance of blood flow in a patient in the shape of a pipe, and

an object for displaying the amount of oxygen delivery to a patient.

8. The object display of claim 7, wherein the object for representing the vascular resistance of blood flow is further representative of the central venous pressure (CVP) of a patient'"'"'s blood and the systemic vascular resistance (SVR) of the patient'"'"'s blood.

9. The object display of claim 8, wherein one end of the of the pipe dilates or constricts relative to the other end of the pipe as the mean arterial pressure or cardiac output of the patient fluctuates.

10. The object display of claim 7, wherein the object for representing the vascular resistance of blood flow is located between two parallel Y-axes wherein the first and left Y-axis includes a mean arterial pressure (MAP) indicator and a central venous pressure (CVP) indicator.

11. The object display of claim 10, wherein the second and right Y-axis includes a cardiac output (CO) indicator which reflects the cardiac output (CO) of the patient.

12. The object display of claim 10, wherein a systemic vascular resistance (SVR) meter is disposed along an X-axis in-between and linking the Y-axes wherein with a normal SVR reading the SVR meter reads at the 3 o'"'"'clock position and wherein with a low SVR reading the SVR meter points downward from the 3 o'"'"'clock position causing the object to expand on its right side and with a high SVR reading the SVR meter points upward from the 3 o'"'"'clock position causing the object to contract on its right side.