INTRAVASCULAR BLOOD PUMP AND CATHETER

• US 20140005467A1
• Filed: 08/29/2013
• Published: 01/02/2014
• Est. Priority Date: 09/14/2006
• Status: Abandoned Application

• Current Assignee: Circulite Inc. (Medtronic Plc)
• Original Assignee: Circulite Inc. (Medtronic Plc)
• Inventors: Farnan, Robert C., Marseille, Oliver
• Application Number:
  US14/013,585
• Publication Number:
  US 20140005467A1
• Time in Patent Office: Days
• US Class Current: 600/16
• CPC Class Codes: A61M 2205/32 with radio-opaque indicia
• CPC Class Codes: A61M 60/135 inside a blood vessel, e.g. using grafting
• 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 60/178 drawing blood from a ventricle and returning the blood to the arterial system via a cannula external to the ventricle, e.g. left or right ventricular assist devices
• CPC Class Codes: A61M 60/216 including a rotating member acting on the blood, e.g. impeller
• CPC Class Codes: A61M 60/422 the force acting on the blood contacting member being electromagnetic, e.g. using canned motor pumps
• CPC Class Codes: A61M 60/861 Connections or anchorings for connecting or anchoring pumps or pumping devices to parts of the patient's body
• CPC Class Codes: A61M 60/878 Electrical connections within the patient's body

Abstract

An intravascular system for pumping blood from a chamber of a heart and through an associated blood vessel coupled in fluid communication therewith. The system includes a pump device configured to be inserted into a blood vessel. The system further includes a catheter having a proximal end coupled to the pump device and a distal end configured to collect blood within or exiting from the chamber. The catheter further includes a pre-formed shape corresponding to the vessel to at least assist with stabilization and positioning of the pump device in the vessel.

Claims

1. An intravascular pump device for pumping blood from a catheter, comprising:

a pump housing having a first end adapted to be coupled to the catheter, a second end, and a tubular body extending between said first and second ends along an axis;

a pump positioned within said tubular body of said pump housing;

a motor housing coupled to said pump housing along said axis and positioned proximate said second end, said motor housing having a diameter smaller than said tubular body such that said pump housing defines an outlet extending along said axis between said tubular body and said motor housing; and

a motor positioned within said motor housing, said motor being configured to operate said pump so that blood is drawn from said catheter, moves through said tubular body of said pump housing, and exits from said outlet.

2. The pump device of claim 1, further comprising:

a power cable coupled to said motor housing along said axis.

3. The pump device of claim 1, wherein said motor housing has a tapered portion.

4. The pump device of claim 1, wherein said pump housing is defined by a pump inlet housing coupled to the catheter and a pump outlet housing coupled to said motor housing.

5. The pump device of claim 4, wherein said pump outlet housing further includes at least two vanes coupling said motor housing to said pump outlet housing.

6. An intravascular pump device for pumping blood from a catheter, comprising

a pump housing having a first end coupled to said catheter, a second end, and a tubular body extending between said first and second ends along an axis, said tubular body having an outer surface and at least one side outlet port extending through said outer surface;

a pump positioned within said tubular body of said pump housing and including an impeller, said impeller spaced axially from said at least one side outlet port;

a motor housing coupled to said pump housing along said axis and positioned proximate said second end; and

a motor positioned within said motor housing, said motor being configured to operate said pump so that blood is drawn from said catheter, through said pump housing, exits from said at least one side outlet port, and is directed into a vessel into which the pump device has been inserted.

7. The system of claim 6, wherein said motor housing has a dome-shaped portion extending along said axis, said dome-shaped portion being configured to prevent areas of stagnant blood flow.

8. The pump device of claim 6, further comprising:

a power cable coupled to said motor housing along said axis.

9. An intravascular pump device for pumping blood from a catheter, comprising:

a pump housing having a first end adapted to be coupled to the catheter, a second end, and a tubular body extending between said first and second ends along an axis, said pump housing being defined by a pump inlet housing coupled to said catheter on one end of the pump inlet housing, and a pump outlet housing coupled to another end of the pump inlet housing;

at least one outlet positioned on or at said pump outlet housing;

a pump positioned within said tubular body of said pump housing and including an impeller, said impeller spaced axially from said at least one side outlet port;

a motor housing coupled to said pump housing along said axis and positioned proximate said second end,

a motor positioned within said motor housing, said motor being configured to operate said pump so that blood is drawn from said catheter, moves through said tubular body of said pump housing, exits from said outlet, and is directed into a vessel into which the pump device has been inserted.