US 8,475,386 B2 · Systems, methods and devices for maintenance, guidance and/or control

Abstract

Methods, systems, devices and computer program products for providing maintenance, guidance and/or control of certain systems are disclosed. Typically, in some aspects the systems are complex. Also disclosed are methods, systems, devices and computer program products for providing therapeutic guidance for controlling a subject's circulation. One such method comprises the steps of: (i) determining the subject's present and desired circulatory states as a function of at least mean systemic filling pressure (Pms), heart efficiency (EH) and systemic vascular resistance (SVR); (ii) determining a target direction of a trajectory from the subject's present circulatory state to said subject's desired circulatory state, wherein treatment of the subject so as to traverse the trajectory will cause the subject's circulatory state to move towards a desired circulatory state; and (iii) visually representing the target direction of the trajectory.

Claims17

Dependent claims

A computer-assisted method for providing therapeutic guidance of a subject's circulatory state, said method comprising the steps of:

using a processing unit:
(i) determining said subject's present and desired circulatory states as a function of at least mean systemic filling pressure (Pms), heart efficiency (EH) and systemic vascular resistance (SVR);
(ii) determining a target direction of a trajectory from said subject's present circulatory state to said subject's desired circulatory state, wherein treatment of said subject so as to traverse said trajectory will cause said subject's circulatory state to move towards a desired circulatory state;
and
(iii) visually representing the target direction of said trajectory to assist in the treatment.

2 more elements

A computer program product comprising a computer readable medium comprising a computer program recorded therein for assessing a subject's circulation state, said computer program product comprising:

(i) computer program code means for assisting in the determination of said subject's present circulatory state using at least mean systemic filling pressure (Pms), heart efficiency (EH) and systemic vascular resistance (SVR)
(ii) computer program code means for assisting in the determination of said subject's desired circulatory state using at least mean systemic filling pressure (Pms), heart efficiency (EH) and systemic vascular resistance (SVR)
(iii) computer program code means for visually representing said subject's present and desired circulatory states;
(iv) computer program code means for determining a target direction of a trajectory from said subject's present circulatory state to said subject's desired circulatory state, wherein treatment of said subject so as to traverse said trajectory will cause said subject's mean arterial pressure (MAP) and cardiac output (CO) to converge to said subject's desired circulatory state;
and
(v) computer program code means for visually representing the target direction of said trajectory.

3 more elements

A circulatory monitoring and guidance system, comprising:

a data acquisition unit;
a visual display unit;
a memory unit for storing data and instructions to be performed by a processing unit;
and
a processing unit coupled to said data acquisition unit, said visual display unit and said memory unit, said processing unit programmed to:
(i) obtain subject specific parameters based on anthropometric data;
(ii) acquire measured values of variables relating to said subject's circulation via said data acquisition unit;
(iii) compute values of mean systemic filling pressure (Pms), heart efficiency (EH) and systemic vascular resistance (SVR) for said subject based on said subject specific parameters and said measured values;
(iv) visually display said subject's present and desired circulatory states as a function of mean systemic filling pressure (Pms), heart efficiency (EH) and systemic vascular resistance (SVR) on said visual display unit;
(v) determine a target direction of a trajectory from said subject's actual circulatory state to said subject's desired circulatory state, wherein treatment of said subject so as to traverse said trajectory will cause said subject's mean arterial pressure (MAP) and cardiac output (CO) to converge to said subject's desired circulatory state;
and
(vi) visually display the target direction of said trajectory on said visual display unit.

9 more elements

Dependencies are inferred from the claim text.

Systems, methods and devices for maintenance, guidance and/or control

Life of this patent

Systems, methods and devices for maintenance, guidance and/or control

Life of this patent

Abstract

Claims17