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Catheter pump for circulatory support

A catheter pump, catheter technology, applied in the direction of circulatory assistance devices, blood pumps, blood pumps, etc.

Active Publication Date: 2013-08-14
CARDIOBRIDGE GMBH
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

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  • Catheter pump for circulatory support
  • Catheter pump for circulatory support
  • Catheter pump for circulatory support

Examples

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Embodiment Construction

[0028] Hereinafter, several embodiments of the present invention will be described with reference to the accompanying drawings. These embodiments were described in order to enable the skilled person to practice the invention and to disclose the best mode by way of illustration. However, these Examples do not limit the present invention. Furthermore, other combinations of different features are possible within the scope of the invention.

[0029] The "Reitan Catheter Pump System" is a temporary circulatory support system based on the concept of a collapsible propeller at the end of a flexible catheter according to an embodiment. People with heart failure use this system when their own heart cannot supply enough oxygenated blood to the body. The basic principle of the system corresponds to that of the system described in the above-mentioned US 5,749,855.

[0030] There are several blood pumps on the market, but most require major surgery to be implanted. Therefore, the advan...

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Abstract

A catheter pump intended to be inserted in the circulatory system of a mammal, for example for assisting the heart. The catheter pump comprises: a hollow catheter (2); a drive cable (1) arranged in a lumen (6) of the catheter (2); a sheath (3) surrounding the hollow catheter (2); a drive shaft (5) connected to a distal end of the drive cable (1) to be rotated by the drive cable; a propeller (4) arranged at the drive shaft; and a cage (11) surrounding the propeller. The propeller and the cage are moveable from a folded position, wherein the catheter pump has a small cross-sectional dimension of about 3.3 mm to an unfolded position wherein the unfolded cage surrounds the unfolded propeller and the size of the cage is about 19.5 mm. The drive shaft comprises a distal bearing (24) and a proximal bearing (25).; A purge system is arranged for passing fluid in a lumen (7) along the hollow catheter to the proximal bearing, for purging and lubrication of the proximal bearing. The fluid is returned outside the drive wire. A portion of the fluid is passed into channels (22) for passing fluid from the proximal bearing to the distal bearing, for purging and lubrication of the distal bearing.

Description

Technical field [0001] The present invention involves a duct pump that is used to be imported into the body of mammals by femoral artery and is placed in aorta for heart recycling support.The guidance pump can be arranged behind the left ventricular valve of the left ventricular valve in the aortic or the right ventricular valve of the desert. Background technique [0002] The existing device is known to be used by the US 5,749,855, and its inventor is the same as the inventor of the invention.The device includes the driver cable, where one end of the driver can be connected to the driver source, and the other end of the driver can be connected to a foldable driver propeller.The foldable driver propeller can be adjusted between the closing structure and the opening structure. In the closing structure, the folding driver can be folded on the driver line. In the open structure, the folding drive propeller can be expanded as the impeller.The sleeve is extended between one side of t...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): A61M1/12A61M60/122A61M60/135A61M60/148A61M60/205A61M60/414A61M60/818A61M60/829
CPCA61M2001/125A61M1/12A61M1/1024A61M1/125A61M60/829A61M60/818A61M60/414A61M60/148A61M60/808A61M60/216A61M60/13
Inventor 厄于温·雷坦克劳斯·埃普勒
Owner CARDIOBRIDGE GMBH