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.
40 Citations
30 Claims
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1-10. -10. (canceled)
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11. A catheter device comprising:
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a drive shaft having a proximal end and a distal end, wherein the proximal end is coupled to a motor; a compressible and expandable helical rotor mounted to the distal end of the drive shaft, the rotor comprising a rotor blade configured to self-expand from a compressed state to a self-expanded state, wherein the rotor has a length, and wherein the rotor blade has a pitch and forms a helix having a half winding around a central axis collinear with the drive shaft; and a compressible and expandable pump housing disposed around the rotor, the housing having a tubular mesh structure; wherein the pitch of the rotor blade varies along the length of the rotor. - View Dependent Claims (12, 13, 14, 15, 16, 17, 18)
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19. A catheter device comprising:
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a drive shaft having a proximal end and a distal end, wherein the proximal end is coupled to a motor; and a compressible and expandable helical rotor mounted to the distal end of the drive shaft, the rotor comprising a rotor blade configured to self-expand from a compressed state to a self-expanded state, wherein the rotor has a length, and wherein the rotor blade has a pitch; wherein the pitch of the rotor blade varies along the length of the rotor. - View Dependent Claims (20, 21, 22, 23, 24, 25, 26, 27)
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28. A catheter device for percutaneous insertion of a heart pump, the catheter device comprising:
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a drive shaft having a proximal end and a distal end, wherein the proximal end is coupled to a motor; a compressible and expandable helical rotor mounted to the distal end of the drive shaft, the rotor comprising a proximal end, a distal end, and more than one rotor blade configured to self-expand from a compressed state to a self-expanded state, wherein the rotor has a length, wherein each rotor blade has a pitch, wherein each rotor blade forms a helix having a half winding and a central axis collinear with the drive shaft, and wherein the drive shaft extends beyond the distal end of the rotor and supports the distal end of the rotor; and a compressible and expandable pump housing disposed around the rotor, the housing having a tubular mesh structure, wherein the tubular mesh structure has a plurality of apertures in a plurality of sections arranged between a distal end of the housing and a proximal end of the housing, the plurality of sections including an intake section, a pump section next to the intake section, and an outlet section, wherein the rotor is mounted within the pump section, wherein the apertures in the pump section are of a first size, wherein the apertures in the intake section are of a second size that is larger than the first size, wherein the expandable mesh tube is formed of a memory material, wherein the expandable mesh tube is covered in the pump section by an elastic covering which provides a liquid-proof seal; and wherein the pitch of each of the rotor blades varies along the length of the rotor. - View Dependent Claims (29, 30)
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Specification