Methods and systems for counterpulsation of blood flow to and from the circulatory system

• US 9,504,773 B2
• Filed: 07/07/2015
• Issued: 11/29/2016
• Est. Priority Date: 10/31/2003
• Status: Active Grant

• Current Assignee: Paul A. Spence
• Original Assignee: Paul A. Spence
• Inventors: Spence, Paul A.
• Primary Examiner(s): Porter, Jr., Allen
• Application Number:
  US14/792,651
• Publication Number:
  US 20150306289A1
• Time in Patent Office: 511 Days
• Field of Search: 600 16- 18
• US Class Current: 1/1
• CPC Class Codes: A61M 2205/8243 by induction
• CPC Class Codes: A61M 60/148 in line with a blood vessel using resection or like techniques, e.g. permanent endovascular heart assist devices
• CPC Class Codes: A61M 60/152 branching on and drawing blood from a blood vessel
• CPC Class Codes: A61M 60/274 the inlet and outlet being the same, e.g. para-aortic counter-pulsation blood pumps
• CPC Class Codes: A61M 60/432 with diastole or systole switching by stopping or reversing the blood pump operating at a much higher cyclical speed than the heart beat
• CPC Class Codes: A61M 60/462 Electromagnetic force
• CPC Class Codes: A61M 60/562 for making blood flow pulsatile in blood pumps that do not intrinsically create pulsatile flow
• CPC Class Codes: A61M 60/869 Compliance chambers containing a gas or liquid other than blood to compensate volume variations of a blood chamber
• CPC Class Codes: A61M 60/873 specially adapted for wireless or transcutaneous energy transfer [TET], e.g. inductive charging

Abstract

Counterpulsation methods and systems for assisting the heart of a patient involve, for example, coordinating the operation of a pulsatile pump to suction blood from an artery through a blood flow conduit while the heart is in systole and expel the blood into the blood flow conduit and the artery while the heart is in diastole.

Claims

1. A counterpulsation method of assisting the heart of a patient using a pump assist system, the method comprising:

coupling a first conduit to the cardiovascular system in the chest cavity of the patient,

connecting a first port of a pulsatile pump to the first conduit,

implanting the pump in the patient outside of the chest cavity and outside of the abdominal cavity of the patient,

connecting a driver unit to the pump, and

coordinating the operation of the pulsatile pump with the driver unit to suction blood from the cardiovascular system through the first port and the first conduit while the heart is in systole and expel the blood into the first port and the first conduit and the cardiovascular system while the heart is in diastole wherein operation of the pump includes delivering a fluid from the driver unit to the pump.

2. The method of claim 1, further comprising:

affixing the driver unit to the patient at a location outside the body of the patient,

directing the fluid from a location outside the body of the patient to the implanted pump.

3. The method of claim 1, further comprising:

coupling a driver conduit from the driver unit to an opposite side of the pump relative to the first conduit, and

supplying the fluid to the pump through the driver conduit.

4. The method of claim 1, further comprising implanting the pump in a superficial, subcutaneous area of the patient.

5. The method of claim 1, further comprising:

implanting the driver unit in the patient.

6. The method of claim 5, further comprising:

implanting a power supply in the patient, and

supplying power to the pump with the power supply.