Method and apparatus for pumping blood
First Claim
1. A pump system for pumping blood through a body passageway, the pump system comprising:
- a distal section having at least one inlet to receive blood;
a pumping section in fluid communication with the distal section to receive blood from the distal section, the pumping section sized to fit within a body passageway and having at least one outlet valve; and
a balloon pump constructed and arranged to be positioned within the pumping section to draw blood into the pumping section in a first phase of operation and to pump blood out of the at least one outlet valve in a second phase of operation;
wherein the pump system is configured such that the at least one inlet is in fluid communication with the pumping section in both the first phase of operation and the second phase of operation.
1 Assignment
0 Petitions
Accused Products
Abstract
At least one aspect of the invention is directed to a pump system for pumping blood though a body passageway. The pump system includes a distal section having at least one inlet to receive blood, a pumping section in fluid communication with the distal section to receive blood from the distal section, and a pump constructed and arranged to be positioned within the pumping section to draw blood into the pumping section in a first phase of operation and to pump blood out of the at least one outlet valve in a second phase of operation. The pump system may be configured such that the at least one inlet is in fluid communication with the pumping section in both the first phase of operation and the second phase of operation. At least one other aspect of the invention is directed to a pump system for pumping blood from one of the right atrium and the right ventricle to the pulmonary artery.
121 Citations
54 Claims
-
1. A pump system for pumping blood through a body passageway, the pump system comprising:
-
a distal section having at least one inlet to receive blood; a pumping section in fluid communication with the distal section to receive blood from the distal section, the pumping section sized to fit within a body passageway and having at least one outlet valve; and a balloon pump constructed and arranged to be positioned within the pumping section to draw blood into the pumping section in a first phase of operation and to pump blood out of the at least one outlet valve in a second phase of operation; wherein the pump system is configured such that the at least one inlet is in fluid communication with the pumping section in both the first phase of operation and the second phase of operation. - View Dependent Claims (2, 3, 4, 5, 6, 7, 8, 9, 10, 11, 12, 13)
-
-
14. A method of pumping blood in a patient, the method comprising:
-
inserting a cannula into an artery of a patient, the cannula having a distal end with an opening and a pumping portion containing a balloon, the pumping portion being positioned within the artery and in fluid communication with the opening in the distal end and the pumping portion having at least one outlet; drawing blood through the opening and into the pumping portion in a first phase of operation; and pumping blood out of the at least one outlet and out of the opening in a second phase of operation. - View Dependent Claims (15, 16, 17, 18, 19, 20, 21, 22, 23)
-
-
24. A pump system for pumping blood through a body passageway, the pump system comprising:
-
a distal section having at least one inlet to receive blood; a pumping section in fluid communication with the distal section to receive blood from the distal section, the pumping section sized to fit within a body passageway, containing a balloon, and having at least one outlet valve; means for drawing blood into the pumping section in a first phase of operation and for pumping blood out of the at least one outlet valve in a second phase of operation, such that the at least one inlet is in fluid communication with the pumping section in both the first phase of operation and the second phase of operation. - View Dependent Claims (25, 26, 27, 28, 29, 30)
-
-
31. A pump system for pumping blood through a body passageway, the pump system comprising:
-
a distal section having at least one inlet to receive blood; a pumping section in fluid communication with the distal section to receive blood from the distal section, the pumping section sized to fit within a body passageway and having at least one outlet valve; and a balloon pump positioned within the pumping section to draw blood into the pumping section in a first phase of operation and to pump blood out of the at least one outlet valve in a second phase of operation; wherein the balloon pump is constructed and arranged in the pumping section to block a fluid communication path between the pumping section and the distal section in the second phase of operation to prevent blood from exiting the at least one inlet in the second phase of operation. - View Dependent Claims (32, 33, 34, 35)
-
-
36. A method of pumping blood in a patient, the method comprising:
-
inserting a cannula into the artery of a patient, the cannula having a distal end with an opening, a pumping portion, a fluid communication path between the opening and the pumping portion, and a balloon disposed in the pumping portion; deflating the balloon to draw blood through the opening and into the pumping portion in a first phase of operation; and inflating the balloon to pump blood out of the pumping portion in a second phase of operation; wherein inflating the balloon includes blocking the fluid communication path with a portion of the balloon. - View Dependent Claims (37, 38, 39, 40, 41, 42, 43)
-
-
44. A pump system for pumping blood from a patient'"'"'s right atrium or right ventricle to a patient'"'"'s pulmonary artery, the pump system comprising:
-
a distal section having at least one outlet; a pumping section in fluid communication with the distal section to provide blood to the outlet of the distal section, the pumping section sized to fit within the patient'"'"'s aorta and having at least one inlet valve to receive blood; and a pump constructed and arranged to be positioned within the pumping section to draw blood into the pumping section in a first phase of operation and to pump blood out of the outlet of the distal section in a second phase of operation. - View Dependent Claims (45, 46, 47, 48, 49, 50)
-
-
51. A method of pumping blood from a patient'"'"'s right atrium or right ventricle to a patient'"'"'s pulmonary artery, the method comprising:
-
inserting a cannula into the patient, the cannula having a distal end with at least one outlet and a pumping portion, the pumping portion containing a balloon, being positioned within the patient'"'"'s aorta and in fluid communication with the opening in the distal end and the pumping portion, and having at least one inlet; drawing blood from the right atrium or the right ventricle through the at least one inlet and into the pumping portion in a first phase of operation; and pumping blood out of the at least one outlet into the pulmonary artery in a second phase of operation. - View Dependent Claims (52, 53, 54)
-
Specification