Device for conversion of a unidirectional rotational motion into reciprocating back and forth motion and pump device comprising same
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United States of America Patent
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-
Mar 12, 2002
Grant Date -
N/A
app pub date -
Mar 24, 2000
filing date -
Jun 24, 1997
priority date (Note) -
Expired
status (Latency Note)
Importance
Abstract
The inventive device consists of a disk which can be rotated around a central axis, a wobble pin which is mounted in the disk so that can rotate around an axis which is arranged at an angle in relation to the plane, of said disk, a swivel pin which is secured to the wobble pin at an angle in relation to the axis thereof, and a fastening device which prevents the swivel pin from rotating around the axis of the disk. This mechanism forms a gear enabling a rotational unidirectional movement to be translated into a back-and-forth movement in applications where limited height is available. The preferred area of application is in implantable blood pumps.
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