Method of approximating a patient's pulse wave based on non-invasive blood pressure measurement, a logic unit therefore and a system therefore

A non-invasive blood pressure measurement system comprising:

• a pressure cuff,
• wherein the pressure cuff is applied over a blood vessel,
• wherein the pressure cuff is configured to receive one or more non-constant clamp pressure signals,
• wherein the one or more non-constant clamp pressure signals cause the pressure cuff to at least one of inflate, deflate, and maintain pressure;
• and
• one or more computer processors coupled to one or more computer readable storage devices;
• program instructions to receive a pulse curve signal from the pressure cuff, wherein the pulse curve signal represents a sequence of pulse curves of a subject;
• program instructions to apply a weighting function,
• wherein the weighting function applies one or more weights to a pulse curve of the sequence of pulse curves to obtain a weighted pulse curve, and
• wherein the one or more non-constant clamp pressure signals are a weighting function input parameter;
• program instructions to sum at least the weighted pulse curve and a second weighted pulse curve, wherein the sum approximates a shape and an amplitude of a pulse wave of the subject;
• program instructions to determine a health status of the subject based on the pulse wave of the subject;
• program instructions to generate a graphical representation of the pulse wave of the subject and a health status indicator.

A non-invasive blood pressure measurement device, comprising:

• a display;
• one or more computer processors coupled to one or more computer readable storage devices;
• program instructions to receive a pulse curve signal from a pressure cuff, wherein the pulse curve signal represents a sequence of pulse curves of a subject;
• program instructions to apply a weighting function,
• wherein the weighting function applies one or more weights to a pulse curve of the sequence of pulse curves to obtain a weighted pulse curve, and
• wherein the one or more non-constant clamp pressure signals are a weighting function input parameter;
• program instructions to sum at least the weighted pulse curve and a second weighted pulse curve, wherein the sum approximates a shape and an amplitude of a pulse wave of the subject;
• program instructions to determine a health status of the subject based on the pulse wave of the subject;
• program instructions to generate a graphical representation of the pulse wave of the subject and the health status of the subject.

A method of non-invasively measuring blood pressure, comprising:

• receiving, by one or more computer processors, a pulse curve signal representing a sequence of pulse curves associated with a subject;
• applying, by the one or more computer processors, a weighting function,
• wherein the weighting function applies one or more weights to a pulse curve of the sequence of pulse curves to obtain a weighted pulse curve, and
• wherein the one or more non-constant clamp pressure signals are a weighting function input parameter;
• summing, by the one or more computer processors, at least the weighted pulse curve and a second weighted pulse curve, wherein the sum approximates a shape and an amplitude of a pulse wave of the subject,
• determining, by the one or more computer processors, a health status of the subject based on the pulse wave of the subject;
• generating, by the one or more computer processors, a graphical representation of the pulse wave of the subject and a health status indicator.