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United States Patent | 6,126,638 |
Wampler ,   et al. | October 3, 2000 |
An implantable rotary blood pump including a rotor mounted for rotation within a pump housing. The rotor has a shaft portion and an impeller carried by the shaft portion. A rotor motor is provided, with the motor including a plurality of permanent magnets carried by the impeller and motor stators on opposite sides of the impeller. The motor is operable to transmit torque and also to provide an axial magnetic force that acts as an axial bearing.
Inventors: | Wampler; Richard K. (Granite Bay, CA); Lancisi; David M. (Folsom, CA) |
Assignee: | Kriton Medical, Inc. (Sacramento, CA) |
Appl. No.: | 204795 |
Filed: | December 3, 1998 |
Intern'l Class: | A61M 037/00 |
Field of Search: | 604/151,131,500 417/423.1,423.7,423.12,203,206 |
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