Intracardiac pumping device

• US 9,872,948 B2
• Filed: 07/24/2004
• Issued: 01/23/2018
• Est. Priority Date: 08/08/2003
• Status: Active Grant

• Current Assignee: ABIOMED Europe GmbH (Johnson & Johnson)
• Original Assignee: ABIOMED Europe GmbH (Johnson & Johnson)
• Inventors: Siess, Thorsten
• Primary Examiner(s): Voorhees, Catherine
• Assistant Examiner(s): Dinga, Roland
• Application Number:
  US10/566,423
• Publication Number:
  US 20100268017A1
• Time in Patent Office: 4,931 Days
• Field of Search: 600 16
• CPC Class Codes: A61M 25/0041 pre-formed, e.g. specially adapted to fit with the anatomy of body channels urethral catheters A61F2/04
• CPC Class Codes: A61M 25/0069 Tip not integral with tube
• CPC Class Codes: A61M 60/13 by means of a catheter allowing explantation, e.g. catheter pumps temporarily introduced via the vascular system
• 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 60/17 inside a ventricle, e.g. intraventricular balloon pumps
• CPC Class Codes: A61M 60/205 Non-positive displacement blood pumps
• CPC Class Codes: A61M 60/237 the blood flow through the rotating member having mainly axial components, e.g. axial flow pumps
• CPC Class Codes: A61M 60/857 Implantable blood tubes
• CPC Class Codes: A61M 60/865 Devices for guiding or inserting pumps or pumping devices into the patient's body

Abstract

The intracardiac pumping device has a pump (11) connected at its distal end (13) to a canula (15). At the distal end, the canula (15) has a suction head (16) for drawing blood. The suction head is extended by a non-sucking projection (20). The projection stabilizes the position of the pumping device in the heart. It extends the canula (15) mechanically without degrading the hydraulic conditions. It also serves as a spacer to prevent the suction head (16) from adhering to a wall of the heart.

Claims

1. An intracardiac pumping device for percutaneous insertion, comprising a pump connected at the proximal end with a catheter and at the suction-side distal end with a canula having inlet openings remote from the pump, characterized in that a flexible pigtail tip is provided at the canula distal of all of the inlet openings, wherein said flexible pigtail tip forms a spacer for keeping said inlet openings spaced apart from adjacent heart walls.

2. The pumping device of claim 1, wherein the pigtail tip comprises a non-sucking projection.

3. The pumping device of claim 1, wherein the pigtail tip comprises a hollow hose whose lumen is in communication with that of the canula.

4. The pumping device of claim 1, wherein the inlet openings are provided in an expansible suction basket including an inflow funnel.

5. The pumping device of claim 1, wherein the pigtail tip has an outer diameter that is smaller than that of the canula.

6. The pumping device of claim 1, wherein the canula has a preformed bend.

7. The pumping device of claim 1, wherein a guide wire is provided that leads through the pump and is adapted to be advanced from the canula into the pigtail tip.

8. The pumping device of claim 1, wherein the pigtail tip has lateral auxiliary openings.