Microplegia delivery system
AssigneeTerumo Cardiovascular Systems Corporation
InventorsCarmen Joseph Leone, Paul Thomas Kotnik
Life of this patent
Estimating the term…
Abstract
Microplegia systems describe herein use syringe pumps that are controlled in a coordinated fashion to deliver cardioplegia medications during an open-heart surgery at the prescribed dosages and/or rates. The microplegia systems link the delivery rate of the syringe pumps with the delivery rate of the cardioplegia blood flow rate. A perfusionist can enter prescribed drug concentrations, desired ratios between drug and blood, and the expected dose for each phase of the myocardial protection scheme that will take place during the open-heart surgery. Additionally, or alternatively, the syringe pump systems described herein can also be used to deliver other non-cardioplegia types of therapeutic substances
Claims20
A heart/lung bypass machine system comprising:
- a heart/lung machine comprising:
- an arterial blood pump;
- and
- a cardioplegia blood pump;
- a first cardioplegia agent syringe pump configured to inject a first cardioplegia agent at a first location along a blood/cardioplegia supply line;
- a second cardioplegia agent syringe pump configured to inject a second cardioplegia agent at a second location along the blood/cardioplegia supply line, wherein the first and second locations are longitudinally spaced apart from each other;
- and
- a controller comprising a hardware processor and computer memory, the controller in electrical signal communication with the cardioplegia blood pump and the first and second cardioplegia agent syringe pumps,
- wherein the controller is configured to modulate operational speeds of the first and second cardioplegia agent syringe pumps based on an actual speed of the cardioplegia blood pump.
A method of operating a heart/lung machine system, the method comprising:
- receiving, by a controller of the heart/lung machine system, user inputs indicative of prescribed correlations between a speed of a cardioplegia blood pump and (i) a speed of a first cardioplegia agent syringe pump and (ii) a speed of a second cardioplegia agent syringe pump;
- modulating, by the controller of the heart/lung machine system, the speed of the first cardioplegia agent syringe pump based on:
- (i) an actual speed of the cardioplegia blood pump and (ii) the user input indicative of the prescribed correlation between the speed of the cardioplegia blood pump and the speed of the first cardioplegia agent syringe pump;
- and
- modulating, by the controller of the heart/lung machine system, the speed of the second cardioplegia agent syringe pump based on:
- (i) the actual speed of the cardioplegia blood pump and (ii) the user input indicative of the prescribed correlation between the speed of the cardioplegia blood pump and the speed of the second cardioplegia agent syringe pump.
A heart/lung bypass machine system comprising:
- an arterial blood pump;
- a first syringe pump configured to deliver a first drug agent;
- and
- a controller comprising a hardware processor and computer memory, the controller in electrical signal communication with the arterial blood pump and the first syringe pump,
- wherein the controller is configured to modulate an operational speed of the first syringe pump based on an actual speed of the arterial blood pump.
Dependencies are inferred from the claim text.