F - Mech Eng,Light,Heat,Weapons – 16 – H
Patent
F - Mech Eng,Light,Heat,Weapons
16
H
F16H 21/36 (2006.01) A61B 8/10 (2006.01)
Patent
CA 2561758
The invention relates to a drive mechanism which can be used in a scanning device. The inventive mechanism comprises a device which converts a rotary motion produced by a motor member into a linear reciprocating motion. According to the invention, the aforementioned converter uses: a planetary rotating table (10) which is rotated by the output shaft (9) of the motor member (8), a planet pinion (15) which is pivot mounted to the table (10) and which meshes with a ring gear with a serrated bore (14) that is coaxial to the shaft (9) and solidly connected to the body of the motor member (8), and a drive member (19) which is borne by a support (18) that is solidly connected to the pinion (15). The mechanism can be used in the scanner of an ultrasound probe.
Le mécanisme d'entraînement selon l'invention comprend un dispositif de conversion d'un mouvement de rotation engendré par un organe moteur en un mouvement rectiligne alternatif, ce dispositif de conversion faisant intervenir un plateau tournant planétaire (10) entraîné en rotation par l'arbre de sortie (9) de l'organe moteur (8), un pignon satellite (15) monté pivotant sur le plateau (10) et venant engrener avec une couronne à alésage dentelé (14) coaxiale audit arbre (9) et solidaire du corps de l'organe moteur (8) et un organe d'entraînement (19) porté par un support (18) solidaire du pignon (15). Ce mécanisme est utilisable dans un dispositif de balayage d'une sonde échographique.
Quantel Medical
Ridout & Maybee Llp
LandOfFree
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