Lidco Group Plc

Christopher Bancroft Wolff

Terence Kevin O'Brien

David Marston Band

Eric Mills

James Arthur Douglas

Jim Douglas

An apparatus and method for determining stroke volume. The apparatus receives an arterial pressure waveform and is arranged to correct a part of the pressure waveform that relates to a heart beat for an influence of an ectopic heart beat, of atrial fibrillation on the pressure waveform or of changes in the pressure waveform's baseline. The apparatus also comprising means arranged to calculate the stroke volume from the corrected waveform.

Hemodynamic monitor and method of hemodynamic monitoring

A method of setting or adjusting a cardiac pacemaker in a patient diagnosed with cardiac asynchrony, which method comprises the steps of: i) implanting cardiac pacing wires into at least the right ventricle and the left ventricle of the heart of the patient, ii) continuously monitoring and recording the cardiac output, nominal stroke volume and/or arterial pressure of the patient on a beat-by-beat basis, iii) continuously monitoring and recording the respiratory cycle of the patient, and iv) adjusting the conduction delay between the electronic impulses to the cardiac pacing wires until a synchronization of respiratory changes with changes in the cardiac output, stroke volume or arterial pressure of the patient is obtained.

Method and apparatus for the setting or adjustment of a cardiac pacemaker

A method for the measurement of post arteriolar pressure in a patient which is determined from information regarding the blood pressure (BP), systemic vascular resistance (R) and cardiac output (CO) by plotting the regression line for the equation BP=R&#xd7;Q+c where c is the post arteriolar pressure, and determining the value of c from the regression line.

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Cambridgeshire, United Kingdom

Christopher Bancroft Wolff