Catheter device
First Claim
1. A percutaneous heart pump comprising:
- a catheter;
a radially compressible pump head having a compressed state and an expanded state;
a rotor disposed in the pump head;
a cover hose configured to compress the pump head into the compressed state, wherein the catheter extends through the cover hose;
a drive shaft coupled to the rotor, the drive shaft extending through the catheter;
a first magnet coupled to the drive shaft;
a second magnet magnetically coupled to the first magnet;
a motor coupled to the second magnet; and
a magnet mounting connected to the motor and having a circular recess, wherein the second magnet is mounted in the recess;
wherein the first and second magnets are arranged relative to one another so that a north pole of the first magnet aligns with a south pole of the second magnet, wherein the second magnet has a through bore, and wherein at least one of the first magnet and the second magnet has a cylindrical shape.
1 Assignment
0 Petitions
Accused Products
Abstract
The catheter device comprises a motor located at the proximal end of the catheter device and a drive shaft, extending from the proximal end section to the distal end section of the catheter device, for driving a rotating element located at the distal end of the catheter device. The catheter device also comprises a hose-like catheter body which encompasses the drive shaft and extends from the proximal end section to the distal end section of the catheter device. At the proximal end of the catheter device, the drive shaft is connected to a motor by a clutch. The clutch is a magnetic clutch with a proximal and a distal magnet unit. The proximal magnet unit is connected to the motor and the distal magnet unit to the drive shaft. The distal magnet unit is mounted fluid-tight in a clutch housing. The proximal end of the catheter body makes a fluid-tight connection with the clutch housing.
136 Citations
17 Claims
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1. A percutaneous heart pump comprising:
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a catheter; a radially compressible pump head having a compressed state and an expanded state; a rotor disposed in the pump head; a cover hose configured to compress the pump head into the compressed state, wherein the catheter extends through the cover hose; a drive shaft coupled to the rotor, the drive shaft extending through the catheter; a first magnet coupled to the drive shaft; a second magnet magnetically coupled to the first magnet; a motor coupled to the second magnet; and a magnet mounting connected to the motor and having a circular recess, wherein the second magnet is mounted in the recess; wherein the first and second magnets are arranged relative to one another so that a north pole of the first magnet aligns with a south pole of the second magnet, wherein the second magnet has a through bore, and wherein at least one of the first magnet and the second magnet has a cylindrical shape. - View Dependent Claims (2, 3, 4, 5, 6, 7, 8, 9, 10, 11, 12, 13, 14, 15, 16, 17)
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Specification