CATHETER DEVICE
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.
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Citations
31 Claims
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1. (canceled)
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2. A percutaneous heart pump comprising:
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a catheter; a radially compressible rotor coupled to a distal portion of the catheter, the rotor configured to automatically unfold after a forced compression; a drive shaft extending through the rotor and having a proximal end portion, the proximal end portion of the drive shaft coupled to a motor, the drive shaft configured to rotate the rotor relative to the catheter, wherein the drive shaft is coupled to the motor by a bearing; and wherein the motor comprises a magnetic clutch. - View Dependent Claims (3, 4, 5, 6, 7, 8, 9, 10, 11, 12, 13, 14, 15, 16, 17, 18)
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19. A percutaneous heart pump system comprising:
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a catheter; a compressible rotor disposed at a distal end portion of the catheter; a drive shaft extending through a central bore of the rotor, wherein the drive shaft couples the rotor to a motor through the catheter; a ball thrust bearing coupled to the drive shaft to the motor, the ball thrust bearing mounted on a terminating disk; a clutch element having a distal portion coupled to the drive shaft; a distal magnet coupled to a proximal portion of the clutch element; and a proximal magnet separated from the distal magnet by the terminating disk. - View Dependent Claims (20, 21, 22, 23, 24, 25, 26)
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27. A percutaneous heart pump system comprising:
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a catheter; a compressible rotor disposed at a distal end portion of the catheter, wherein the rotor is formed from an elastic material such that the rotor automatically unfolds after release from a forced compression; an expandable mesh tube disposed around the rotor, the expandable mesh tube comprising a pump section substantially constant in diameter when in an expanded state; an atraumatic tip coupled to a distal end of the expandable mesh tube; a drive shaft extending through a central bore of the rotor, the drive shaft configured to rotate the rotor relative to the catheter; a clutch element coupled to a proximal end of the drive shaft; a distal magnet coupled to a proximal portion of the clutch element; a proximal magnet driven by a motor; and a bearing configured to couple the drive shaft to the motor by connecting the clutch element to the proximal magnet through a borehole in the distal magnet. - View Dependent Claims (28, 29, 30, 31)
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Specification